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Sanyo UH3642 / CH3642 manual

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Table of contents for the manual

  • Page 1

    85464849182000 REFERENCE NO. SM 830082 FILE NO. TECHNICAL D A T A & SER VICE MANU AL 1 2 3 4 Sectio n 5 XH2442 / CH2442 XH3642 / CH3642 XH4242 / CH4242 TH2442 / CH2442 TH3642 / CH3642 TH4242 / CH4242 KH2442 / CH2442 KH3642 / CH3642 UH2442 / CH2442 UH3642 / CH3642 SPLIT SYSTEM AIR CONDITIONER OUTDOOR MODEL No. PRODUCT CODE No. CH2442 854 017 21 [...]

  • Page 2

    SM830082 Please Read Before Starting This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently. For safe installation and trouble-free operation, you must : ● Carefully read this instructio[...]

  • Page 3

    WHO SHOULD USE THIS MANU AL This service manual is made to assist the service technician apply his knowledge and training to this model air conditioner. This manual is written both for experienced service persons and those who are new to air conditioning service. To help those with less experience or who are new to this kind of unit we have include[...]

  • Page 4

    2-7 Overload Protection (Heating) .................................................................. II - 9 2-8 Discharge Temperature Control (Cooling and Heating) ........................... II - 10 2-9 Auto. Mode for Automatic Heating/Cooling Switching .............................. II - 11 2-10 Defrosting Control, Outdoor Heat Exchanger Coil (He[...]

  • Page 5

    I - 1 SM830082 1 2 3 4 5 1. Specifications 1. SPECIFICA TIONS 1-1 Unit Specifications ................................................................................. I - 2 4-Way Air Discharge Semi-concealed Type ........................................... I - 2 Ceiling Mounted Type .................................................................[...]

  • Page 6

    I - 2 SM830082 1 2 3 4 5 1. Specifications 1-1 Unit Specifications MODEL No. Indoor Unit XH2442 Outdoor Unit CH2442 PO WER SOURCE 230 - 208 V / 1 Phase / 60 Hz PERFORMANCE Cooling Heating Capacity* BTU / h 24,000 23,400 25,000 24,300 (17 ° F)** 16,400 15,800 Moisture remov al (High) Pints / h 8.6 8.4 — Air circulation (H / M / L) 230 V cu.ft. / [...]

  • Page 7

    I - 3 SM830082 1 2 3 4 5 1. Specifications MODEL No. Indoor Unit XH3642 Outdoor Unit CH3642 PO WER SOURCE 230 - 208 V / 1 Phase / 60 Hz PERFORMANCE Cooling Heating Capacity* BTU / h 34,500 33,500 37,500 36,500 (17 ° F)** 25,000 23,500 Moisture remov al (High) Pints / h 10.5 10.6 — Air circulation (H / M / L) 230 V cu.ft. / min. 1,050 / 840 / 720[...]

  • Page 8

    I - 4 SM830082 1 2 3 4 5 1. Specifications MODEL No. Indoor Unit XH4242 Outdoor Unit CH4242 PO WER SOURCE 230 - 208 V / 1 Phase / 60 Hz PERFORMANCE Cooling Heating Capacity* BTU / h 42,000 40,000 44,000 42,000 (17 ° F)** 28,000 26,000 Moisture remov al (High) Pints / h 14.4 14.0 — Air circulation (H / M / L) 230 V cu.ft. / min. 1,050 / 840 / 720[...]

  • Page 9

    I - 5 SM830082 1 2 3 4 5 1. Specifications MODEL No. Indoor Unit TH2442 Outdoor Unit CH2442 PO WER SOURCE 230 - 208 V / 1 Phase / 60 Hz PERFORMANCE Cooling Heating Capacity* BTU / h 22,400 21,600 25,400 25,000 (17 ° F)** 15,700 15,000 Moisture remov al (High) Pints / h 8.0 7.9 — Air circulation (H / M / L) 230 V cu.ft. / min. 550 / 490 / 460 S.E[...]

  • Page 10

    I - 6 SM830082 1 2 3 4 5 1. Specifications MODEL No. Indoor Unit TH3642 Outdoor Unit CH3642 PO WER SOURCE 230 - 208 V / 1 Phase / 60 Hz PERFORMANCE Cooling Heating Capacity* BTU / h 34,000 33,000 40,000 39,000 (17 ° F)** 25,000 24,000 Moisture remov al (High) Pints / h 10.7 10.8 — Air circulation (H / M / L) 230 V cu.ft. / min. 1,100 / 930 / 750[...]

  • Page 11

    I - 7 SM830082 1 2 3 4 5 1. Specifications MODEL No. Indoor Unit TH4242 Outdoor Unit CH4242 PO WER SOURCE 230 - 208 V / 1 Phase / 60 Hz PERFORMANCE Cooling Heating Capacity* BTU / h 42,000 40,000 44,000 42,000 (17 ° F)** 28,000 26,000 Moisture remov al (High) Pints / h 14.8 14.3 — Air circulation (H / M / L) 230 V cu.ft. / min. 1,100 / 930 / 750[...]

  • Page 12

    I - 8 SM830082 1 2 3 4 5 1. Specifications MODEL No. Indoor Unit UH2442 Outdoor Unit CH2442 PO WER SOURCE 230 - 208 V / 1 Phase / 60 Hz PERFORMANCE Cooling Heating Capacity* BTU / h 24,000 23,400 27,000 26,500 (17 ° F)** 16,200 15,500 Moisture remov al (High) Pints / h 8.4 7.7 — Air circulation (H / M / L) 230 V cu.ft. / min. 670 / 530 / 460 Ext[...]

  • Page 13

    I - 9 SM830082 1 2 3 4 5 1. Specifications MODEL No. Indoor Unit UH3642 Outdoor Unit CH3642 PO WER SOURCE 230 - 208 V / 1 Phase / 60 Hz PERFORMANCE Cooling Heating Capacity* BTU / h 34,500 33,000 37,500 36,500 (17 ° F)** 25,000 24,000 Moisture remov al (High) Pints / h 10.0 9.9 — Air circulation (H / M / L) 230 V cu.ft. / min. 1,060 / 920 / 750 [...]

  • Page 14

    I - 10 SM830082 1 2 3 4 5 1. Specifications MODEL No. Indoor Unit KH2442 Outdoor Unit CH2442 PO WER SOURCE 230 - 208 V / 1 Phase / 60 Hz PERFORMANCE Cooling Heating Capacity* BTU / h 22,000 21,000 25,000 24,300 (17 ° F)** 16,000 15,300 Moisture remov al (High) Pints / h 7.1 6.8 — Air circulation (H / M / L) 230 V cu.ft. / min. 540 / 460 / 380 S.[...]

  • Page 15

    I - 11 SM830082 1 2 3 4 5 1. Specifications MODEL No. Indoor Unit KH3642 Outdoor Unit CH3642 PO WER SOURCE 230 - 208 V / 1 Phase / 60 Hz PERFORMANCE Cooling Heating Capacity* BTU / h 33,000 32,000 40,000 39,000 (17 ° F)** 25,000 24,000 Moisture remov al (High) Pints / h 10.6 10.6 — Air circulation (H / M / L) 230 V cu.ft. / min. 830 / 710 / 590 [...]

  • Page 16

    I - 12 SM830082 1 2 3 4 5 1. Specifications MODEL No . XH2442 Source 230 - 208 VAC / 1 phase / 60 Hz Remote controller (Option) RCS - SH80UA, WL Controller P. C. B Ass'y CR - TH2442 Control circuit fuse 250 VAC, 3 A Fan (Number … diameter) in. (mm) Turbo (1…17-7/16 (443)) Fan motor Model SFG6X - 41D6P Source 230 - 208 V / 1 phase / 60 Hz N[...]

  • Page 17

    I - 13 SM830082 1 2 3 4 5 1. Specifications MODEL No . XH3642 Source 230 - 208 VAC / 1 phase / 60 Hz Remote controller (Option) RCS - SH80UA, WL Controller P. C. B Ass'y CR - TH2442 Control circuit fuse 250 VAC, 3 A Fan (Number … diameter) in. (mm) Turbo (1…17-7/16 (443)) Fan motor Model SFG6X - 81A6P Source 230 - 208 V / 1 phase / 60 Hz N[...]

  • Page 18

    I - 14 SM830082 1 2 3 4 5 1. Specifications MODEL No . XH4242 Source 230 - 208 VAC / 1 phase / 60 Hz Remote controller (Option) RCS - SH80UA, WL Controller P. C. B Ass'y CR - TH2442 Control circuit fuse 250 VAC, 3 A Fan (Number … diameter) in. (mm) Turbo (1…17-7/16 (443)) Fan motor Model SFG6X - 81A6P Source 230 - 208 V / 1 phase / 60 Hz N[...]

  • Page 19

    I - 15 SM830082 1 2 3 4 5 1. Specifications MODEL No . TH2442 Source 230 - 208 V / 1 phase / 60 Hz Remote controller (Option) RCS - SH80UA, WL Controller P. C. B Ass'y CR - TH2442 Control circuit fuse 250 V, 3 A Fan (Number … diameter) in. (mm) Centrifugal (4 ... 5-1/8(130)) Fan motor Model SR4X - 51A6P Source 230 - 208 V / 1 phase / 60 Hz N[...]

  • Page 20

    I - 16 SM830082 1 2 3 4 5 1. Specifications MODEL No . TH3642 Source 230 - 208 V / 1 phase / 60 Hz Remote controller (Option) RCS - SH80UA, WL Controller P. C. B Ass'y CR - TH2442 Control circuit fuse 250 V, 3 A Fan (Number … diameter) in. (mm) Centrifugal (4 ... 5-29/32(150)) Fan motor Model KFG4X - 101C6P Source 230 - 208 V / 1 phase / 60 [...]

  • Page 21

    I - 17 SM830082 1 2 3 4 5 1. Specifications MODEL No . TH4242 Source 230 - 208 V / 1 phase / 60 Hz Remote controller (Option) RCS - SH80UA, WL Controller P. C. B Ass'y CR - TH2442 Control circuit fuse 250 V, 3 A Fan (Number … diameter) in. (mm) Centrifugal (4 ... 5-29/32(150)) Fan motor Model KFG4X - 101C6P Source 230 - 208 V / 1 phase / 60 [...]

  • Page 22

    I - 18 SM830082 1 2 3 4 5 1. Specifications MODEL No . UH2442 Source 230 - 208 V / 1 phase / 60 Hz Remote controller (Option) RCS - BH80UA, WL Controller P. C. B Ass'y CR - TH2442 Control circuit fuse 250 V, 3 A Fan (Number … diameter) in. (mm) Centrifugal (4 ... 5-29/32(150)) Fan motor Model KFG4X - 71B6P Source 230 - 208 V / 1 phase / 60 H[...]

  • Page 23

    I - 19 SM830082 1 2 3 4 5 1. Specifications MODEL No . UH3642 Source 230 - 208 V / 1 phase / 60 Hz Remote controller (Option) RCS - BH80UA, WL Controller P. C. B Ass'y CR - TH2442 Control circuit fuse 250 V, 3 A Fan (Number … diameter) in. (mm) Centrifugal (4 ... 5-29/32(150)) Fan motor Model KFG4X - 141A6P Source 230 - 208 V / 1 phase / 60 [...]

  • Page 24

    I - 20 SM830082 1 2 3 4 5 1. Specifications 1-2 Major Component Specifications (A) Indoor Unit MODEL No . KH2442 Source 230 - 208 V / 1 phase / 60 Hz Remote controller (Option) RCS - BH80UA, WL Controller P. C. B Ass'y CR - TH2442 Control circuit fuse 250 V, 3 A Fan Cross-flow Number ... Dia. and length in. (mm) 1 ... O.D. 4-1/3 (110), L39 (99[...]

  • Page 25

    I - 21 SM830082 1 2 3 4 5 1. Specifications 1-2 Major Component Specifications (A) Indoor Unit MODEL No . KH3642 Source 230 - 208 V / 1 phase / 60 Hz Remote controller (Option) RCS - BH80UA, WL Controller P. C. B Ass'y CR - TH2442 Control circuit fuse 250 V, 3 A Switch Ass'y SW - KHS2432 Fan Cross-flow Number ... Dia. and length in. (mm) [...]

  • Page 26

    I - 22 SM830082 1 2 3 4 5 1. Specifications 1-2 Major Component Specifications (B) Outdoor Unit MODEL No. CH2442 Source 230 - 208 VAC / 1 phase / 60 Hz Controller P.C.B. Ass'y CR - CH2442 (Microprocessor) Control circuit fuse 250 VAC, 3 A Compressor Rotary (Hermetic) Model C - 2R160H6T Source 230 - 208 VAC / 1 phase / 60 Hz Nominal output W 1,[...]

  • Page 27

    I - 23 SM830082 1 2 3 4 5 1. Specifications 1-2 Major Component Specifications (B) Outdoor Unit MODEL No. CH3642 Source 230 - 208 VAC / 1 phase / 60 Hz Controller P.C.B. Ass'y CR - CH2442 (Microprocessor) Control circuit fuse 250 V, 3 A Compressor Rotary (Hermetic) Model C - R221H6R Source 230 - 208 VAC / 1 phase / 60 Hz Nominal output W 2,200[...]

  • Page 28

    I - 24 SM830082 1 2 3 4 5 1. Specifications 1-2 Major Component Specifications (B) Outdoor Unit + 2.0 + 0.5 D A T A SUBJECT T O CHANGE WITHOUT NO TICE MODEL No . CH4242 Source 230 - 208 V / 1 phase / 60 Hz Compressor Scroll (Hermetic) Model ZR47KC - PFV Source 230 - 208 V / 1 phase / 60 Hz Nominal output W 4,270 Compressor oil cc 1,240 Coil resista[...]

  • Page 29

    I - 25 SM830082 1 2 3 4 5 1. Specifications 1-3 Other Component Specifications (A) Indoor Unit MODEL No . XH2442 Power Transformer ATR – II224A Rated Primary 220 VAC, 60 Hz Secondary BRN - BRN : 14 V, 0.45 A, RED - RED : 14 V, 0.3 A Capacity — Coil resistance Ω WHT - WHT : 61.0 , RED - RED : 1.37 (Ambient temprature 77 ° F) BRN - BRN : 0.97 [...]

  • Page 30

    I - 26 SM830082 1 2 3 4 5 1. Specifications 1-3 Other Component Specifications (A) Indoor Unit MODEL No . XH3642 Power Transformer ATR – IIK224A Rated Primary 220 VAC, 60 Hz Secondary BRN - BRN : 14 V, 0.45 A, RED - RED : 14 V, 0.3 A Capacity — Coil resistance Ω WHT - WHT : 61.0 , RED - RED : 1.37 (Ambient temprature 77 ° F) BRN - BRN : 0.97[...]

  • Page 31

    I - 27 SM830082 1 2 3 4 5 1. Specifications 1-3 Other Component Specifications (A) Indoor Unit MODEL No . XH4242 Power Transformer ATR – IIK224A Rated Primary 220 VAC, 60 Hz Secondary BRN - BRN : 14 V, 0.45 A, RED - RED : 14 V, 0.3 A Capacity — Coil resistance Ω WHT - WHT : 61.0 , RED - RED : 1.37 (Ambient temprature 77 ° F) BRN - BRN : 0.97[...]

  • Page 32

    I - 28 SM830082 1 2 3 4 5 1. Specifications MODEL No . TH2442 Power Transformer ATR – IIK244B Rated Primary AC 220 V, 60 Hz Secondary BRN - BRN : 14 V / 0.55 A, RED - RED : 14 V / 0.3 A Capacity — Coil resistance Ω WHT - WHT : 48.0 , RED - RED : 0.89 (Ambient temprature 77 ° F) BRN - BRN : 0.45 , ORG - ORG : 2.05 Thermistor cut off temperatu[...]

  • Page 33

    I - 29 SM830082 1 2 3 4 5 1. Specifications MODEL No . TH3642 Power Transformer ATR – IIK244B Rated Primary AC 220 V, 60 Hz Secondary BRN - BRN : 14 V / 0.55 A, RED - RED : 14 V / 0.55 A Capacity — Coil resistance Ω WHT - WHT : 48.0 , RED - RED : 0.89 (Ambient temprature 77 ° F) BRN - BRN : 0.45 , ORG - ORG : 2.05 Thermistor cut off temperat[...]

  • Page 34

    I - 30 SM830082 1 2 3 4 5 1. Specifications MODEL No . TH4242 Power Transformer ATR – IIK244B Rated Primary AC 220 V, 60 Hz Secondary BRN - BRN : 14 V / 0.55 A, RED - RED : 14 V / 0.3 A Capacity — Coil resistance Ω WHT - WHT : 48.0 , RED - RED : 0.89 (Ambient temprature 77 ° F) BRN - BRN : 0.45 , ORG - ORG : 2.05 Thermistor cut off temperatu[...]

  • Page 35

    I - 31 SM830082 1 2 3 4 5 1. Specifications MODEL No . UH2442 Power Transformer ATR – IIK244B Rated Primary AC 220 V, 60 Hz Secondary BRN - BRN : 14 V / 0.55 A, RED - RED : 14 V / 0.3 A Capacity — Coil resistance Ω WHT - WHT : 48.0 , RED - RED : 0.89 (Ambient temprature 77 ° F) BRN - BRN : 0.45 , ORG - ORG : 2.05 Thermistor cut off temperatu[...]

  • Page 36

    I - 32 SM830082 1 2 3 4 5 1. Specifications MODEL No . UH3642 Power Transformer ATR – IIK244B Rated Primary AC 220 V, 60 Hz Secondary BRN - BRN : 14 V / 0.55 A, RED - RED : 14 V / 0.3 A Capacity — Coil resistance Ω WHT - WHT : 48.0 , RED - RED : 0.89 (Ambient temprature 77 ° F) BRN - BRN : 0.45 , ORG - ORG : 2.05 Thermistor cut off temperatu[...]

  • Page 37

    I - 33 SM830082 1 2 3 4 5 1. Specifications MODEL No . KH2442 Power Transformer ATR – IIK244B Rated Primary AC 220 V, 60 Hz Secondary BRN - BRN : 14 V / 0.55 A, RED - RED : 14 V / 0.3 A Capacity — Coil resistance Ω WHT - WHT : 48.0 , RED - RED : 0.89 (Ambient temprature 77 ° F) BRN - BRN : 0.45 , ORG - ORG : 2.05 Thermistor cut off temperatu[...]

  • Page 38

    I - 34 SM830082 1 2 3 4 5 1. Specifications MODEL No . KH3642 Power Transformer ATR – II244B Rated Primary AC 220 V, 60 Hz Secondary BRN - BRN : 14 V / 0.55 A, RED - RED : 14 V / 0.3 A Capacity — Coil resistance Ω WHT - WHT : 48.0 , RED - RED : 0.89 (Ambient temprature 77 ° F) BRN - BRN : 0.45 , ORG - ORG : 2.05 Thermistor cut off temperatur[...]

  • Page 39

    I - 35 SM830082 1 2 3 4 5 1. Specifications 1-3 Other Component Specifications (B) Outdoor Unit MODEL No. CH2442 Compressor Motor Magnetic Contactor FC - 1UL Coil rated 240 VAC, 60 Hz Coil resistance (at 77 ° F) Ω 580 ± 15 % Contact rated (Main) 230 VAC, 20 A Contact rated (Auxiliary) 230 VAC, 3 A Power Relay HH62S Coil rated 240 VAC, 60 Hz Coi[...]

  • Page 40

    I - 36 SM830082 1 2 3 4 5 1. Specifications MODEL No. CH3642 Compressor Motor Magnetic Contactor FC - 1SUL Coil rated 240 VAC, 60 Hz Coil resistance (at 68 ° F) Ω 588 ± 10 % Contact rated (Main) 240 VAC, 26 A Contact rated (Auxiliary) 240 VAC, 3 A Power Relay HH62S Coil rated 240 VAC, 60 Hz Coil resistance (at 77 ° F) k Ω 17.2 Contact rated [...]

  • Page 41

    I - 37 SM830082 1 2 3 4 5 1. Specifications MODEL No. CH4242 Compressor Motor Magnetic Contactor FC - 2SUL Coil rated 240 VAC, 60 Hz Coil resistance (at 68 ° F) Ω 350 ± 10 % Contact rated (Main) 240 VAC, 35 A Contact rated (Auxiliary) 240 VAC, 3 A Power Relay HH62S Coil rated 240 VAC, 60 Hz Coil resistance (at 77 ° F) k Ω 17.2 Contact rated [...]

  • Page 42

    I - 38 SM830082 1 2 3 4 5 1. Specifications 1-4 Dimensional data Indoor unit : 4-Way Air Discharge Semi-concealed Type 24 Type 33-27/32 3-15/16 30-9/16 19-11/16 19-11/16 12-1/8 1-3/16 4-7/8 15/32 15/32 1-7/8 33-27/32 32-9/32 (Ceiling opening) Grille center 29-13/16 (Suspention bolt pitch) 14-1/2 1 Air intake grille Air outlet Refrigerant liquid lin[...]

  • Page 43

    I - 39 SM830082 1 2 3 4 5 1. Specifications 1-4 Dimensional data Indoor unit : 4-Way Air Discharge Semi-concealed Type 36, 42 Type 45-9/32 41-31/32 31-3/32 19-11/16 13-5/16 1-3/16 4-7/8 15/32 15/32 1-7/8 33-27/32 32-9/32 (Ceiling opening) Grille center 29-13/16 (Suspention bolt pitch) 20-3/16 1 Air intake grille Air outlet Refrigerant liquid line ([...]

  • Page 44

    I - 40 SM830082 1 2 3 4 5 1. Specifications 1-4 Dimensional data Indoor unit : Ceiling Mounted Type 24 Type Drain connection Drain connection for left side Refrigerant liquid line (1/4") Flare connection Refrigerant gas line (3/4") Flare connection Hole for rear side refrigerant tubing Hole for through-the-wall refrigerant tubing (ø3-15/[...]

  • Page 45

    I - 41 SM830082 1 2 3 4 5 1. Specifications 1-4 Dimensional data Indoor unit : Ceiling Mounted Type 36, 42 Type Drain connection Drain connection for left side Refrigerant liquid line (3/8") Flare connection Refrigerant gas line (3/4") Flare connection Hole for rear side refrigerant tubing Hole for through-the-wall refrigerant tubing (ø3[...]

  • Page 46

    I - 42 SM830082 1 2 3 4 5 1. Specifications 1-4 Dimensional data Indoor unit : Concealed Duct Type 24 Type Refrigerant liquid line ø3/8 (narrow tube) (Use the tube connector) Refrigerant gas line ø5/8 (wide tube) Upper drain port (O.D. 1-1/4) Bottom drain port (O.D. 1-1/32) Suspension lug Power supply inlet (conduit size 1/2") Fresh air inta[...]

  • Page 47

    I - 43 SM830082 1 2 3 4 5 1. Specifications 1-4 Dimensional data Indoor unit : Concealed Duct Type 36 Type Refrigerant liquid line ø3/8 (narrow tube) Refrigerant gas line ø3/4 (wide tube) Upper drain port (O.D. 1-1/4) Bottom drain port (O.D. 1-1/32) Suspension lug Power supply inlet (conduit size 1/2") Fresh air intake port (ø5-29/32) Flang[...]

  • Page 48

    I - 44 SM830082 1 2 3 4 5 1. Specifications 1-4 Dimensional data Indoor unit : Concealed Duct Type ■ Flange for the air intake duct (Field supply) : For Concealed Duct Type 23/32 1-7/32 F G H G F 11/32 E D B (O.D.) A (Hole) C-ø1/8 (Hole) 1/4 (Hole) 12-1/32 10-1/4 (O.D.) 29/32 7-7/8 1-25/32 5/16 1-25/32 31/32 13/32 2118_U_I 2-ø1/8 13/32 31/32 8-[...]

  • Page 49

    I - 45 SM830082 1 2 3 4 5 1. Specifications 1-4 Dimensional data Indoor unit : Wall Mounted Type 24 Type 49-7/32 Dimension : inch Refrigerant gas line (wide tubing: ø 3/4) Refrigerant liquid line (narrow tubing: ø 1/4) Drain hose OD 1-1/4 1911_X_S 4-5/32 2-1/4 8-9/32 14-9/16 2-3/4[...]

  • Page 50

    I - 46 SM830082 1 2 3 4 5 1. Specifications 1-4 Dimensional data Indoor unit : Wall Mounted Type 36 Type 59-1/16 Dimension : inch Refrigerant gas line (wide tubing 3/4") Refrigerant liquid line (narrow tubing 3/8") Drain hose OD 1-1/4 1912_X_S 9-7/16 14-9/16 2-3/4 2-9/16 1-49/64[...]

  • Page 51

    I - 47 SM830082 1 2 3 4 5 1. Specifications 1-4 Dimensional Data (B) Outdoor Unit: CH2442 15-3/4 14-31/32 13/32 1-3/16 1-31/32 28-15/16 11 12-1/16 37 Dimension : inch Hole for anchor bolt (4-ø1/2) Refrigerant tube joint (narrow tube) Flare connection 1/4 in (6.35 mm) Refrigerant tube joint (wide tube) Flare connection 3/4 in (19.05 mm) Refrigerant[...]

  • Page 52

    I - 48 SM830082 1 2 3 4 5 1. Specifications 1-4 Dimensional Data (B) Outdoor Unit: CH3642, CH4242 48-5/8 22-27/32 23-29/32 37 Dimension : inch Hole for anchor bolt (4-ø13) Refrigerant tube joint (narrow tube) Flare connection 3/8 in (9.52 mm) Refrigerant tube joint (wide tube) Flare connection 3/4 in (19.05 mm) Refrigerant tubing inlet Power suppl[...]

  • Page 53

    I - 49 SM830082 1 2 3 4 5 1. Specifications 1-5 Refrigerant Flow Diagram Outdoor Unit: CH2442 Indoor Unit: 24 Type HP High pressure switch Compressor Accumulator Accumulator EC P Heat exchanger 4-way valve EC P Heat exchanger Distributor Electronic ref.control valve Strainer Liquid line nipple Liquid line service valve O.D. 1/4" (6.35mm) O.D. [...]

  • Page 54

    I - 50 SM830082 1 2 3 4 5 1. Specifications HP High pressure switch Compressor Accumulator EC P Heat exchanger 4-way valve EC P Heat exchanger Distributor Electronic ref.control valve Strainer Liquid line nipple Liquid line service valve O.D. 3/8" (9.52mm) O.D. 3/4" (19.05mm) Gas line nipple Gas line service valve Distributor Sub-heat exc[...]

  • Page 55

    I - 51 SM830082 1 2 3 4 5 1. Specifications RATING CAPACITY : 24,000 BTU/h AIR FLOW RATE: 5 4 0 CF M EVAPORATOR CONDENSER ENT.TEMP. ° F( ° C) AMBIENT TEMP ° F( ° C) WB D B 75 8 5 9 5 105 115 (23.9) (29.4) (35.0) (40.6) (46.1) T C 24,310 23,140 21,790 20,280 18,600 C I 1.71 1.86 2.03 2.26 2.49 72(22.2) SH C 16,680 16,020 15,280 14,470 13,600 5 9[...]

  • Page 56

    I - 52 SM830082 1 2 3 4 5 1. Specifications Indoor Unit: XH2442 Outdoor Unit: CH2442 • 208V / 1 phase / 60Hz RATING CAPACITY : 23,400 BTU/h AIR FLOW RATE: 5 1 0 C FM EVAPORATOR CONDENSER ENT.TEMP. ° F( ° C) AMBIENT TEMP ° F( ° C) WB D B 75 85 9 5 105 115 (23.9) (29.4) (35.0) (40.6) (46.1) T C 23,700 22,560 21,250 19,770 18,140 C I 1.75 1.92 2[...]

  • Page 57

    I - 53 SM830082 1 2 3 4 5 1. Specifications Indoor Unit: XH3642 Outdoor Unit: CH3642 • 230V / 1 phase / 60Hz RATING CAPACITY : 34,500 BTU/h AIR FLOW RATE: 9 8 0 CFM EVAPORATOR CONDENSER ENT.TEMP. ° F( ° C) AMBIENT TEMP ° F( ° C) WB D B 75 8 5 9 5 105 115 (23.9) (29.4) (35.0) (40.6) (46.1) T C 34,950 33,260 31,330 29,150 26,740 C I 2.32 2.53 2[...]

  • Page 58

    I - 54 SM830082 1 2 3 4 5 1. Specifications Indoor Unit: XH3642 Outdoor Unit: CH3642 • 208V / 1 phase / 60Hz RATING CAPACITY : 33,500 BTU/h AIR FLOW RATE: 8 8 0 CFM EVAPORATOR CONDENSER ENT.TEMP. ° F( ° C) AMBIENT TEMP ° F( ° C) WB DB 75 8 5 9 5 105 115 (23.9) (29.4) (35.0) (40.6) (46.1) T C 33,940 32,290 30,420 28,310 25,960 C I 2.21 2.41 2.[...]

  • Page 59

    I - 55 SM830082 1 2 3 4 5 1. Specifications Indoor Unit: XH4242 Outdoor Unit: CH4242 • 230V / 1 phase / 60Hz RATING CAPACITY : 42,000 BTU/h AIR FLOW RATE: 9 8 0 CFM EVAPORATOR CONDENSER ENT.TEMP. ° F( ° C) AMBIENT TEMP ° F( ° C) WB D B 75 8 5 9 5 105 115 (23.9) (29.4) (35.0) (40.6) (46.1) T C 42,550 40,490 38,140 35,490 32,550 C I 3.03 3.3 3.[...]

  • Page 60

    I - 56 SM830082 1 2 3 4 5 1. Specifications Indoor Unit: XH4242 Outdoor Unit: CH4242 • 208V / 1 phase / 60Hz RATING CAPACITY : 40,000 BTU/h AIR FLOW RATE: 8 8 0 CFM EVAPORATOR CONDENSER ENT.TEMP. ° F( ° C) AMBIENT TEMP ° F( ° C) WB DB 75 8 5 9 5 105 115 (23.9) (29.4) (35.0) (40.6) (46.1) T C 40,520 38,560 36,320 33,800 31,000 C I 2.91 3.18 3.[...]

  • Page 61

    I - 57 SM830082 1 2 3 4 5 1. Specifications Indoor Unit: TH2442 Outdoor Unit: CH2442 • 230V / 1 phase / 60Hz RATING CAPACITY : 22,400 BTU/h AIR FLOW RATE: 4 6 0 CFM EVAPORATOR CONDENSER ENT.TEMP. ° F( ° C) AMBIENT TEMP ° F( ° C) WB DB 75 85 9 5 105 115 (23.9) (29.4) (35.0) (40.6) (46.1) T C 22,690 21,590 20,340 18,930 17,360 C I 1.71 1.86 2.0[...]

  • Page 62

    I - 58 SM830082 1 2 3 4 5 1. Specifications Indoor Unit: TH2442 Outdoor Unit: CH2442 • 208V / 1 phase / 60Hz RATING CAPACITY : 21,600 BTU/h AIR FLOW RATE: 4 1 0 CFM EVAPORATOR CONDENSER ENT.TEMP. ° F( ° C) AMBIENT TEMP ° F( ° C) WB DB 75 85 9 5 105 115 (23.9) (29.4) (35.0) (40.6) (46.1) T C 21,880 20,820 19,610 18,250 16,740 C I 1.75 1.92 2.0[...]

  • Page 63

    I - 59 SM830082 1 2 3 4 5 1. Specifications Indoor Unit: TH3642 Outdoor Unit: CH3642 • 230V / 1 phase / 60Hz RATING CAPACITY : 34,000 BTU/h AIR FLOW RATE: 9 0 0 CFM EVAPORATOR CONDENSER ENT.TEMP. ° F( ° C) AMBIENT TEMP ° F( ° C) WB D B 75 8 5 9 5 105 115 (23.9) (29.4) (35.0) (40.6) (46.1) T C 34,440 32,780 30,870 28,730 26,350 C I 2.32 2.53 2[...]

  • Page 64

    I - 60 SM830082 1 2 3 4 5 1. Specifications Indoor Unit: TH3642 Outdoor Unit: CH3642 • 208V / 1 phase / 60Hz RATING CAPACITY : 33,000 BTU/h AIR FLOW RATE: 8 0 0 CFM EVAPORATOR CONDENSER ENT.TEMP. ° F( ° C) AMBIENT TEMP ° F( ° C) WB DB 75 85 9 5 105 115 (23.9) (29.4) (35.0) (40.6) (46.1) T C 33,430 31,810 29,960 27,890 25,580 C I 2.21 2.41 2.6[...]

  • Page 65

    I - 61 SM830082 1 2 3 4 5 1. Specifications Indoor Unit: TH4242 Outdoor Unit: CH4242 • 230V / 1 phase / 60Hz RATING CAPACITY : 42,000 BTU/h AIR FLOW RATE: 9 0 0 C FM EVAPORATOR CONDENSER ENT.TEMP. ° F( ° C) AMBIENT TEMP ° F( ° C) WB DB 75 8 5 9 5 105 115 (23.9) (29.4) (35.0) (40.6) (46.1) T C 42,550 40,490 38,140 35,490 32,550 C I 3.03 3.3 3.[...]

  • Page 66

    I - 62 SM830082 1 2 3 4 5 1. Specifications Indoor Unit: TH4242 Outdoor Unit: CH4242 • 208V / 1 phase / 60Hz RATING CAPACITY : 40,000 BTU/h AIR FLOW RATE: 8 0 0 CFM EVAPORATOR CONDENSER ENT.TEMP. ° F( ° C) AMBIENT TEMP ° F( ° C) WB D B 75 8 5 9 5 105 115 (23.9) (29.4) (35.0) (40.6) (46.1) T C 40,520 38,560 36,320 33,800 31,000 C I 2.91 3.18 3[...]

  • Page 67

    I - 63 SM830082 1 2 3 4 5 1. Specifications Indoor Unit: UH2442 Outdoor Unit: CH2442 • 230V / 1 phase / 60Hz RATING CAPACITY : 24,000 BTU/h AIR FLOW RATE: 6 7 0 CFM EVAPORATOR CONDENSER ENT.TEMP. ° F( ° C) AMBIENT TEMP ° F( ° C) WB D B 75 8 5 9 5 105 115 (23.9) (29.4) (35.0) (40.6) (46.1) T C 24,310 23,140 21,790 20,280 18,600 C I 1.71 1.86 2[...]

  • Page 68

    I - 64 SM830082 1 2 3 4 5 1. Specifications Indoor Unit: UH2442 Outdoor Unit: CH2442 • 208V / 1 phase / 60Hz RATING CAPACITY : 23,400 BTU/h AIR FLOW RATE: 6 0 0 CFM EVAPORATOR CONDENSER ENT.TEMP. ° F( ° C) AMBIENT TEMP ° F( ° C) WB DB 75 85 9 5 105 115 (23.9) (29.4) (35.0) (40.6) (46.1) T C 23,700 22,560 21,250 19,770 18,140 C I 1.75 1.92 2.0[...]

  • Page 69

    I - 65 SM830082 1 2 3 4 5 1. Specifications Indoor Unit: UH3642 Outdoor Unit: CH3642 • 230V / 1 phase / 60Hz RATING CAPACITY : 34,500 BTU/h AIR FLOW RATE: 1,060 CF M EVAPORATOR CONDENSER ENT.TEMP. ° F( ° C) AMBIENT TEMP ° F( ° C) WB DB 75 8 5 9 5 105 115 (23.9) (29.4) (35.0) (40.6) (46.1) T C 34,950 33,260 31,330 29,150 26,740 C I 2.32 2.53 2[...]

  • Page 70

    I - 66 SM830082 1 2 3 4 5 1. Specifications Indoor Unit: UH3642 Outdoor Unit: CH3642 • 208V / 1 phase / 60Hz RATING CAPACITY : 33,000 BTU/h AIR FLOW RATE: 9 5 0 CFM EVAPORATOR CONDENSER ENT.TEMP. ° F( ° C) AMBIENT TEMP ° F( ° C) WB DB 75 85 9 5 105 115 (23.9) (29.4) (35.0) (40.6) (46.1) T C 33,430 31,810 29,960 27,890 25,580 C I 2.21 2.41 2.6[...]

  • Page 71

    I - 67 SM830082 1 2 3 4 5 1. Specifications Indoor Unit: KH2442 Outdoor Unit: CH2442 • 230V / 1 phase / 60Hz RATING CAPACITY : 22,000 BTU/h AIR FLOW RATE: 5 4 0 CFM EVAPORATOR CONDENSER ENT.TEMP. ° F( ° C) AMBIENT TEMP ° F( ° C) WB DB 75 85 9 5 105 115 (23.9) (29.4) (35.0) (40.6) (46.1) T C 22,290 21,210 19,980 18,590 17,050 C I 1.71 1.86 2.0[...]

  • Page 72

    I - 68 SM830082 1 2 3 4 5 1. Specifications Indoor Unit: KH2442 Outdoor Unit: CH2442 • 208V / 1 phase / 60Hz RATING CAPACITY : 21,000 BTU/h AIR FLOW RATE: 5 1 0 CFM EVAPORATOR CONDENSER ENT.TEMP. ° F( ° C) AMBIENT TEMP ° F( ° C) WB DB 75 85 9 5 105 115 (23.9) (29.4) (35.0) (40.6) (46.1) T C 21,270 20,240 19,070 17,750 16,280 C I 1.75 1.92 2.0[...]

  • Page 73

    I - 69 SM830082 1 2 3 4 5 1. Specifications Indoor Unit: KH3642 Outdoor Unit: CH3642 • 230V / 1 phase / 60Hz RATING CAPACITY : 33,000 BTU/h AIR FLOW RATE: 8 3 0 CFM EVAPORATOR CONDENSER ENT.TEMP. ° F( ° C) AMBIENT TEMP ° F( ° C) WB D B 75 8 5 9 5 105 115 (23.9) (29.4) (35.0) (40.6) (46.1) T C 33,430 31,810 29,960 27,890 25,580 C I 2.32 2.53 2[...]

  • Page 74

    I - 70 SM830082 1 2 3 4 5 1. Specifications Indoor Unit: KH3642 Outdoor Unit: CH3642 • 208V / 1 phase / 60Hz RATING CAPACITY : 32,000 BTU/h AIR FLOW RATE: 7 5 0 CFM EVAPORATOR CONDENSER ENT.TEMP. ° F( ° C) AMBIENT TEMP ° F( ° C) WB DB 75 8 5 9 5 105 115 (23.9) (29.4) (35.0) (40.6) (46.1) T C 32,420 30,850 29,060 27,040 24,800 C I 2.21 2.41 2.[...]

  • Page 75

    I - 71 SM830082 1 2 3 4 5 1. Specifications 1-8 Heating Capacity 2182_X_S Indoor entering air temperature: 70 ° F Heating capacity (%) Outdoor ambient temp . ( ° F DB at 75% RH) 60 80 100 120 30 20 10 40 50 60[...]

  • Page 76

    I - 72 SM830082 1 2 3 4 5 1. Specifications 1-9 Performance Charts ● Cooling Characteristics (1) Operating Current 1 1 1 1 1 Indoor Unit: XH2442 Outdoor Unit: CH2442 Operating current characteristics versus outdoor ambient temperature and indoor temperature. (Indoor relative humidity: 50%, Indoor fan speed: High) 230V 208V 230V 208V 2183_X_S Oper[...]

  • Page 77

    I - 73 SM830082 1 2 3 4 5 1. Specifications 1-9 Performance Charts ● Cooling Characteristics (1) Operating Current 1 1 1 1 1 Indoor Unit: XH4242 Outdoor Unit: CH4242 Operating current characteristics versus outdoor ambient temperature and indoor temperature. (Indoor relative humidity: 50%, Indoor fan speed: High) 230V 208V 2223_X_S Operating curr[...]

  • Page 78

    I - 74 SM830082 1 2 3 4 5 1. Specifications 1-9 Performance Charts ● Cooling Characteristics (1) Operating Current 1 1 1 1 1 Indoor Unit: TH2442 Outdoor Unit: CH2442 Operating current characteristics versus outdoor ambient temperature and indoor temperature. (Indoor relative humidity: 50%, Indoor fan speed: High) 230V 208V 230V 208V Indoor Unit: [...]

  • Page 79

    I - 75 SM830082 1 2 3 4 5 1. Specifications 1-9 Performance Charts ● Cooling Characteristics (1) Operating Current 1 1 1 1 1 Indoor Unit: TH4242 Outdoor Unit: CH4242 Operating current characteristics versus outdoor ambient temperature and indoor temperature. (Indoor relative humidity: 50%, Indoor fan speed: High) 230V 208V 2223_X_S Operating curr[...]

  • Page 80

    I - 76 SM830082 1 2 3 4 5 1. Specifications 1-9 Performance Charts ● Cooling Characteristics (1) Operating Current 1 1 1 1 1 Indoor Unit: UH2442 Outdoor Unit: CH2442 Operating current characteristics versus outdoor ambient temperature and indoor temperature. (Indoor relative humidity: 50%, Indoor fan speed: High) 230V 208V 230V 208V Indoor Unit: [...]

  • Page 81

    I - 77 SM830082 1 2 3 4 5 1. Specifications 1-9 Performance Charts ● Cooling Characteristics (1) Operating Current 1 1 1 1 1 Indoor Unit: KH2442 Outdoor Unit: CH2442 Operating current characteristics versus outdoor ambient temperature and indoor temperature. (Indoor relative humidity: 50%, Indoor fan speed: High) 230V 208V 230V 208V Indoor Unit: [...]

  • Page 82

    I - 78 SM830082 1 2 3 4 5 1. Specifications 1-9 Performance Charts ● Heating Characteristics (1) Operating Current 1 1 1 1 1 Indoor Unit: XH2442 Outdoor Unit: CH2442 Operating current characteristics versus outdoor ambient temperature and indoor temperature. (Indoor relative humidity: 50%, Indoor fan speed: High) 230V 208V 230V 208V Indoor Unit: [...]

  • Page 83

    I - 79 SM830082 1 2 3 4 5 1. Specifications 1-9 Performance Charts ● Heating Characteristics (1) Operating Current 1 1 1 1 1 Indoor Unit: XH4242 Outdoor Unit: CH4242 Operating current characteristics versus outdoor ambient temperature and indoor temperature. (Indoor relative humidity: 50%, Indoor fan speed: High) 230V 208V 2225_X_S Operating curr[...]

  • Page 84

    I - 80 SM830082 1 2 3 4 5 1. Specifications 1-9 Performance Charts ● Heating Characteristics (1) Operating Current 1 1 1 1 1 Indoor Unit: TH2442 Outdoor Unit: CH2442 Operating current characteristics versus outdoor ambient temperature and indoor temperature. (Indoor relative humidity: 50%, Indoor fan speed: High) 230V 208V 230V 208V Indoor Unit: [...]

  • Page 85

    I - 81 SM830082 1 2 3 4 5 1. Specifications 1-9 Performance Charts ● Heating Characteristics (1) Operating Current 1 1 1 1 1 Indoor Unit: TH4242 Outdoor Unit: CH4242 Operating current characteristics versus outdoor ambient temperature and indoor temperature. (Indoor relative humidity: 50%, Indoor fan speed: High) 230V 208V 2225_X_S Operating curr[...]

  • Page 86

    I - 82 SM830082 1 2 3 4 5 1. Specifications 1-9 Performance Charts ● Heating Characteristics (1) Operating Current 1 1 1 1 1 Indoor Unit: UH2442 Outdoor Unit: CH2442 Operating current characteristics versus outdoor ambient temperature and indoor temperature. (Indoor relative humidity: 50%, Indoor fan speed: High) 230V 208V 230V 208V Indoor Unit: [...]

  • Page 87

    I - 83 SM830082 1 2 3 4 5 1. Specifications 1-9 Performance Charts ● Heating Characteristics (1) Operating Current 1 1 1 1 1 Indoor Unit: KH2442 Outdoor Unit: CH2442 Operating current characteristics versus outdoor ambient temperature and indoor temperature. (Indoor relative humidity: 50%, Indoor fan speed: High) 230V 208V 2235_X_S Operating curr[...]

  • Page 88

    I - 84 SM830082 1 2 3 4 5 1. Specifications 1-9 Performance Charts ● Cooling Characteristics (2) Operating Pressure 1 1 1 1 1 Indoor Unit: 24 Type Outdoor Unit: CH2442 • High Pressure High pressure characteristics versus outdoor ambient temperature and indoor temperature. (Indoor relative humidity: 50%, Indoor fan speed: High) 230V / 208V Outdo[...]

  • Page 89

    I - 85 SM830082 1 2 3 4 5 1. Specifications 1-9 Performance Charts ● Cooling Characteristics (2) Operating Pressure 1 1 1 1 1 Indoor Unit: 36 Type Outdoor Unit: CH3642 • High Pressure High pressure characteristics versus outdoor ambient temperature and indoor temperature. (Indoor relative humidity: 50%, Indoor fan speed: High) 230V / 208V • L[...]

  • Page 90

    I - 86 SM830082 1 2 3 4 5 1. Specifications 1-9 Performance Charts ● Cooling Characteristics (2) Operating Pressure 1 1 1 1 1 Indoor Unit: 42 Type Outdoor Unit: CH4242 • High Pressure High pressure characteristics versus outdoor ambient temperature and indoor temperature. (Indoor relative humidity: 50%, Indoor fan speed: High) 230V / 208V 2228_[...]

  • Page 91

    I - 87 SM830082 1 2 3 4 5 1. Specifications 1-9 Performance Charts ● Heating Characteristics (2) Operating Pressure 1 1 1 1 1 Indoor Unit: 24 Type Outdoor Unit: CH2442 • High Pressure High pressure characteristics versus outdoor ambient temperature and indoor temperature. (Indoor relative humidity: 50%, Indoor fan speed: High) 230V / 208V • L[...]

  • Page 92

    I - 88 SM830082 1 2 3 4 5 1. Specifications 1-9 Performance Charts ● Heating Characteristics (2) Operating Pressure 1 1 1 1 1 Indoor Unit: 36 Type Outdoor Unit: CH3642 • High Pressure High pressure characteristics versus outdoor ambient temperature and indoor temperature. (Indoor relative humidity: 50%, Indoor fan speed: High) 230V / 208V 1165_[...]

  • Page 93

    I - 89 SM830082 1 2 3 4 5 1. Specifications 1-9 Performance Charts ● Heating Characteristics (2) Operating Pressure 1 1 1 1 1 Indoor Unit: 42 Type Outdoor Unit: CH4242 • High Pressure High pressure characteristics versus outdoor ambient temperature and indoor temperature. (Indoor relative humidity: 50%, Indoor fan speed: High) 230V / 208V • L[...]

  • Page 94

    I - 90 SM830082 1 2 3 4 5 1. Specifications 1-10 Noise Criterion Curves ● 4-Way Air Discharge Semi-concealed Type MODEL : XH2442 SOUND LEVEL : HIGH 38 dB(A), NC 31 LOW 31 dB(A), NC 23 CONDITION : Center, Under the unit 4.9 ft. SOURCE : 208 - 230 V, 1 Phase, 60 Hz MODEL : XH4242 SOUND LEVEL : HIGH 45 dB(A), NC 38 LOW 34 dB(A), NC 27 CONDITION : Ce[...]

  • Page 95

    I - 91 SM830082 1 2 3 4 5 1. Specifications 1-10 Noise Criterion Curves ● Ceiling Mounted Type MODEL : TH2442 SOUND LEVEL : HIGH 40 dB(A), NC 34 LOW 36 dB(A), NC 26 CONDITION : Distance 3.3 ft., Under the unit 3.3 ft. SOURCE : 208 - 230 V, 1 Phase, 60 Hz 60 50 40 30 20 10 OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µ bar) 63 125 250 500 [...]

  • Page 96

    I - 92 SM830082 1 2 3 4 5 1. Specifications 1-10 Noise Criterion Curves ● Concealed Duct Type MODEL : UH2442 SOUND LEVEL : HIGH 34 dB(A), NC 22 / LOW 27 dB(A), NC 18 CONDITION : Under the unit 4.9 ft. SOURCE : 208 - 230 V, 1 Phase, 60 Hz 1761_U_I 60 50 40 30 20 10 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE 63 125 250 500 1000 2000 4000[...]

  • Page 97

    I - 93 SM830082 1 2 3 4 5 1. Specifications 1-10 Noise Criterion Curves ● Wall Mounted Type MODEL : KH2442 SOUND LEVEL : HIGH 45 dB(A), NC 38 LOW 40 dB(A), NC 33 CONDITION : Distance 3.3 ft., Under the unit 3.3 ft. SOURCE : 208 - 230 V, 1 Phase, 60 Hz MODEL : KH3642 SOUND LEVEL : HIGH 48 dB(A), NC 41 LOW 40 dB(A), NC 33 CONDITION : Distance 3.3 f[...]

  • Page 98

    I - 94 SM830082 1 2 3 4 5 1. Specifications 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 0597_C_S APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC-60 NC-50 NC-40 NC-30 NC-20 NC-70 OCTAVE BAND SOUND PRESSURE LEVEL, dB (0dB=0.0002 µ bar) BAND CENTER FREQUENCIES, Hz NC-70 NC-50 NC-60 NC-40 NC-30 NC-20 OCTAVE BAND SOUND PRESSU[...]

  • Page 99

    I - 95 SM830082 1 2 3 4 5 1. Specifications 1-11 Increasing the Fan Speed If external static pressure is too great (due to long extension of ducts, for example), the air flow volume may drop too low at each air outlet. This problem may be solved by increasing the fan speed using the following procedure: (1) Remove 4 screws on the electrical compone[...]

  • Page 100

    I - 96 SM830082 1 2 3 4 5 1. Specifications 1-12 Air throw distance chart ● 4-Way Air Discharge Semi-concealed Type Model: 24 Type Model: 36, 42 Type : LOUVER ANGLE 20˚ in Cooling mode : LOUVER ANGLE 60˚ in Heating mode Condition Fan Speed : Hi Room air temp. : 80 ˚C DB in cooling mode 68 ˚C DB in heating mode 0 3 7 1 01 31 7 2 0 0 3 7 10 13 [...]

  • Page 101

    I - 97 SM830082 1 2 3 4 5 1. Specifications 1-12 Air throw distance chart ● Ceiling Mounted Type Model: 24 Type Model: 36 Type Model: 42 Type 0 3 7 1 01 3 1 7 2 02 32 62 9 3 3 0 3 7 10 13 17 HORIZONT AL DIST ANCE (ft.) AXIS AIR VELOCITY (ft./sec) VERTICAL DIST ANCE (ft.) 2115_T_I AXIS AIR VELOCITY 2116_T_I AXIS AIR VELOCITY 0 3 7 1 01 3 1 7 2 02 [...]

  • Page 102

    I - 98 SM830082 1 2 3 4 5 1. Specifications 1-12 Air throw distance chart ● Wall Mounted Type MODEL: KHS2442 COOLING - - - - - HEA TING F AN SPEED HIGH HIGH ROOM AIR TEMP . 80 ° F7 0 ° F FLAP ANGLE 0 ° , 22.5 ° , 45 ° 54 ° , 67.5 ° MODEL: KHS3642 COOLING - - - - - HEA TING F AN SPEED HIGH HIGH ROOM AIR TEMP . 80 ° F7 0 ° F FLAP ANGLE 0 ?[...]

  • Page 103

    I - 99 SM830082 1 2 3 4 5 1. Specifications ● T ubing Length ● Refrigerant tubing between the indoor and outdoor units should be kept as short as possible. ● Select and decide the installation location so that the length of the refrigerant tubing will be within the limits given in T able 1-10. Tubing length (L) INDOOR UNIT OUTDOOR UNIT Elevat[...]

  • Page 104

    I - 100 SM830082 1 2 3 4 5 1. Specifications Ceiling-Mounted T ype ■ SELECTING THE INST ALLA TION SITE Indoor Unit A V OID: ● areas where leakage of flammab le gas ma y be e xpected. ● places where large amounts of oil mist e xist. ● direct sunlight. ● locations near inv er ter lamps which may aff ect perf ormance of the unit. ● locatio[...]

  • Page 105

    I - 101 SM830082 1 2 3 4 5 1. Specifications Out- door unit Heat source Hot air Exhaust fan 0591_C_I Outdoor Unit A V OID: ● heat sources, e xhaust fans , etc. (Fig. 2-1) ● damp , humid or unev en locations. DO: ● choose a place as cool as possible . ● choose a place that is well v entilated and outside air temperature does not e xceed maxi[...]

  • Page 106

    I - 102 SM830082 1 2 3 4 5 1. Specifications Air discharge 0426_C_I Recommended outer dimensions of wind shield (field supply) 0936_C_I 3 - ø1-9/16" hole 6 - ø15/64" hole 9-27/32" 21-5/8" 15/16" 5-3/16" 22-7/16" 1/2" 23-15/32" 21-13/16" 5-5/32" 9-27/32" 9-27/32" 1-7/32" 21-13/1[...]

  • Page 107

    I - 103 SM830082 1 2 3 4 5 1. Specifications 0937_C_I Without snow- proof ducting (Low platform) Snow-proof ducting (High platform) In regions with snow f all, the outdoor unit should be provided with a platf or m and snow-proof duct. Fig. 2-5 Fig. 2-6 Air Intake Platform (foundation) Higher than the maximum snow depth Duct About 1/2 of the unit he[...]

  • Page 108

    I - 104 SM830082 1 2 3 4 5 1. Specifications ■ ELECTRICAL WIRING ● General Precautions on Wiring (1) Before wiring, confirm the rated voltage of the unit as shown on its nameplate, then carry out the wiring closely following the wiring diagram. (2) Provide a power outlet to be used exclusively for each unit, and a power supply disconnect and ci[...]

  • Page 109

    I - 105 SM830082 1 2 3 4 5 1. Specifications ● Wiring System Diagrams (1) Basic wiring diagram for standard control 1 2 U1 U2 1 2 1 2 1 2 1 2 G G L1 L2 G Indoor Unit Inter-unit power wiring Single phase 230/208V Inter-unit control wiring (Low voltage) Remote controller Outdoor Unit Ground Ground (Option) B D A 2085_M_I Power supply Single phase 2[...]

  • Page 110

    I - 106 SM830082 1 2 3 4 5 1. Specifications (2) Basic wiring diagram for group control This diagram shows when several units (max. 8) are controlled by a remote controller. In this case, a remote controller can be connected at any indoor unit. ● R.C. Address should be set before turning the power on. ● Auto. address setting can be executed by [...]

  • Page 111

    I - 107 SM830082 1 2 3 4 5 1. Specifications Cooling: Rating Conditions : Indoor Air Temperature 80 ° F DB / 67 ° F WB Outdoor Air Temperature 95 ° F DB Full Load Conditions : Indoor Air Temperature 80 ° F DB / 67 ° F WB Outdoor Air Temperature 115 ° F DB Heating: Rating Conditions : Indoor Air Temperature 70 ° F DB / 60 ° F WB Outdoor Air [...]

  • Page 112

    I - 108 SM830082 1 2 3 4 5 1. Specifications Cooling: Rating Conditions : Indoor Air Temperature 80 ° F DB / 67 ° F WB Outdoor Air Temperature 95 ° F DB Full Load Conditions : Indoor Air Temperature 80 ° F DB / 67 ° F WB Outdoor Air Temperature 115 ° F DB Heating: Rating Conditions : Indoor Air Temperature 70 ° F DB / 60 ° F WB Outdoor Air [...]

  • Page 113

    I - 109 SM830082 1 2 3 4 5 1. Specifications Indoor model: XH4242 / Outdoor model: CH4242 ● Cooling ● Heating Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 V 208 V 230 V 208 V 230 V 208 V 230 V 208 V Rating conditions A 1.0 0.9 1.8 1.8 17.8 18.3 20.6 21.0 kW 0.2 0.17 0.36 0.34 3.64 3.58 4.2 4.09 Full l[...]

  • Page 114

    I - 110 SM830082 1 2 3 4 5 1. Specifications Cooling: Rating Conditions : Indoor Air Temperature 80 ° F DB / 67 ° F WB Outdoor Air Temperature 95 ° F DB Full Load Conditions : Indoor Air Temperature 80 ° F DB / 67 ° F WB Outdoor Air Temperature 115 ° F DB Heating: Rating Conditions : Indoor Air Temperature 70 ° F DB / 60 ° F WB Outdoor Air [...]

  • Page 115

    I - 111 SM830082 1 2 3 4 5 1. Specifications Cooling: Rating Conditions : Indoor Air Temperature 80 ° F DB / 67 ° F WB Outdoor Air Temperature 95 ° F DB Full Load Conditions : Indoor Air Temperature 80 ° F DB / 67 ° F WB Outdoor Air Temperature 115 ° F DB Heating: Rating Conditions : Indoor Air Temperature 70 ° F DB / 60 ° F WB Outdoor Air [...]

  • Page 116

    I - 112 SM830082 1 2 3 4 5 1. Specifications Indoor model: TH4242 / Outdoor model: CH4242 ● Cooling ● Heating Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 V 208 V 230 V 208 V 230 V 208 V 230 V 208 V Rating conditions A 0.8 0.7 1.8 1.8 18.0 18.8 20.6 21.3 kW 0.18 0.15 0.36 0.34 3.76 3.71 4.3 4.2 Full l[...]

  • Page 117

    I - 113 SM830082 1 2 3 4 5 1. Specifications Cooling: Rating Conditions : Indoor Air Temperature 80 ° F DB / 67 ° F WB Outdoor Air Temperature 95 ° F DB Full Load Conditions : Indoor Air Temperature 80 ° F DB / 67 ° F WB Outdoor Air Temperature 115 ° F DB Heating: Rating Conditions : Indoor Air Temperature 70 ° F DB / 60 ° F WB Outdoor Air [...]

  • Page 118

    I - 114 SM830082 1 2 3 4 5 1. Specifications Cooling: Rating Conditions : Indoor Air Temperature 80 ° F DB / 67 ° F WB Outdoor Air Temperature 95 ° F DB Full Load Conditions : Indoor Air Temperature 80 ° F DB / 67 ° F WB Outdoor Air Temperature 115 ° F DB Heating: Rating Conditions : Indoor Air Temperature 70 ° F DB / 60 ° F WB Outdoor Air [...]

  • Page 119

    I - 115 SM830082 1 2 3 4 5 1. Specifications Cooling: Rating Conditions : Indoor Air Temperature 80 ° F DB / 67 ° F WB Outdoor Air Temperature 95 ° F DB Full Load Conditions : Indoor Air Temperature 80 ° F DB / 67 ° F WB Outdoor Air Temperature 115 ° F DB Heating: Rating Conditions : Indoor Air Temperature 70 ° F DB / 60 ° F WB Outdoor Air [...]

  • Page 120

    I - 116 SM830082 1 2 3 4 5 1. Specifications Cooling: Rating Conditions : Indoor Air Temperature 80 ° F DB / 67 ° F WB Outdoor Air Temperature 95 ° F DB Full Load Conditions : Indoor Air Temperature 80 ° F DB / 67 ° F WB Outdoor Air Temperature 115 ° F DB Heating: Rating Conditions : Indoor Air Temperature 70 ° F DB / 60 ° F WB Outdoor Air [...]

  • Page 121

    II - 1 SM830082 1 2 3 4 Sectio n 5 2. Processes and functions 2. PR OCESSES AND FUNCTIONS 2-1 Room Temperature Control ...................................................................... II - 2 (A) Cooling ................................................................................................ II - 2 (B) Heating .........................[...]

  • Page 122

    II - 2 SM830082 1 2 3 4 S ection 5 2. Processes and functions Fig. 1 Chart Summary and Explanations ❑ Once the compressor starts , it keeps running for 5 minutes. ❑ Once the compressor stops , it will not start running again for 3 minutes. ❑ If you change the operation mode ( HEAT, COOL, or FAN ) during the cooling cycle, the control circuit [...]

  • Page 123

    II - 3 SM830082 1 2 3 4 Sectio n 5 2. Processes and functions (B) Heating Chart Summary and Explanations ❑ Once the compressor starts, it keeps running for 5 minutes. ❑ Once the compressor stops, it will not start running again for 3 minutes. ❑ If you change the operation mode ( HEAT, COOL or FAN ) during the heating cycle, the control circui[...]

  • Page 124

    II - 4 SM830082 1 2 3 4 S ection 5 2. Processes and functions 2-2 Cold Draft Prevention (Heating Cycle) The cold draft prevention function controls indoor fan speed so a strong draft of cold air will not blow out before the indoor heat exchange coils have warmed up. ❑ STANDBY shows on the remote controller when the indoor fan speed is LL (very lo[...]

  • Page 125

    II - 5 SM830082 1 2 3 4 Sectio n 5 2. Processes and functions Fig. 4 2-3 Automatic Fan Speed (Indoor Unit) (A) Cooling By pressing the FAN SPEED button on the remote controller, the fan speed can be set at one of four steps: AUTO., HI., MED., or LO. When set at AUTO. the indoor unit fan speed will be automatically adjusted to the room temperature a[...]

  • Page 126

    II - 6 SM830082 1 2 3 4 S ection 5 2. Processes and functions 2-4 Outdoor Fan Speed Control To optimize the performance of air conditioner, the outdoor fan speed is selected automatically according to the outdoor temperature. ❑ Note that in both Cooling and Heating modes, the fan comes on at first at high speed (H mode) for 5 seconds. Since outdo[...]

  • Page 127

    II - 7 SM830082 1 2 3 4 Sectio n 5 2. Processes and functions 2-5 Freeze Prevention (Cooling) Freeze Prevention keeps the indoor heat exchange coil from freezing. Freezing reduces the efficiency of the unit, and frost build up on the coil blocks cool air circulation from the indoor unit's fan. Fig. 8 Note: Freeze prevention is controlled by th[...]

  • Page 128

    II - 8 SM830082 1 2 3 4 S ection 5 2. Processes and functions Fig. 9 2-6 Condensing T emperature Contr ol (Cooling) Condensing temperature is controlled by the outdoor heat exchanger coil temperature as sensed by sensor C2 . Chart Explanations and notes ❑ This chart shows how the outdoor fan speed and the electronic refrigerant control valve reac[...]

  • Page 129

    II - 9 SM830082 1 2 3 4 Sectio n 5 2. Processes and functions Fig. 10 2-7 Overload Protection (Heating) This function prevents the air conditioner from overloading. Chart Explanations and notes ❑ This chart shows how the outdoor fan speed and the electronic refrigerant control valve react to coil temperature to keep the indoor heat exchanger coil[...]

  • Page 130

    II - 10 SM830082 1 2 3 4 S ection 5 2. Processes and functions 2-8 Discharge T emperature Control (Cooling and Heating) This function prevents the compressor motor from burnout by overheating. OUTDOOR FAN SPEED DISCHARGE GAS TEMP. ( ° F) 239 (24, 36 Type) 221 203 200 194 185 275 (42 Type) 257 239 235 230 221 COMPRESSOR ELECTRONIC REF. CONTROL VALV[...]

  • Page 131

    II - 11 SM830082 1 2 3 4 Sectio n 5 2. Processes and functions 2-9 Auto. Mode for A utomatic Heating/Cooling Switching ❑ When the AUTO mode is selected, the microprocessor calculates the difference between the set temperature and the room temperature, and automatically switches to the COOLING or HEATING mode to maintain the desired temperature. R[...]

  • Page 132

    II - 12 SM830082 1 2 3 4 S ection 5 2. Processes and functions Chart summary and Explanations ❑ This chart shows how the Operation Mode ( COOLING or HEATING ) is determined by the microprocessor taking the room temperature into consideration. It also shows the temperature points at which the cooling or heating mode is switched, when the AUTO mode[...]

  • Page 133

    II - 13 SM830082 1 2 3 4 Sectio n 5 2. Processes and functions 2-10 Defrosting Control, Outdoor Heat Exchanger Coil (Heating) When the outdoor temperature is low, frost may form on the outdoor heat exchanger coil. When this occurred, the defrosting system operates. The microprocessor in the outdoor unit monitors the relationship between the tempera[...]

  • Page 134

    II - 14 SM830082 1 2 3 4 S ection 5 2. Processes and functions 2-11 4-W ay V alve, Solenoid Control The basic function of the 4-way valve is to direct the refrigerant in the correct direction according to the Operation Mode ( COOLING or HEATING ) selected. The following two charts show conditions of the controls and functions listed in the left han[...]

  • Page 135

    II - 15 SM830082 1 2 3 4 Sectio n 5 2. Processes and functions (B) AUTO Control Mode When the Compressor has stopped while in AUTO mode, the 4-way valve switches on (heating) or off (cooling) within 1 minute according to the following conditions: Fig. 16 2-12 Automatic Restart after Power Interruption This air conditionner has a power failure recov[...]

  • Page 136

    II - 16 SM830082 1 2 3 4 S ection 5 2. Processes and functions 2-13 Electronic Refrigerant Contr ol V alve ❑ This valve allows very precise and smooth control of the amount of refrigerant flow in the system. Since the valve is operated by a step motor, the control circuits can open or close it in very exact amounts, so the degree of heating or co[...]

  • Page 137

    II - 17 SM830082 1 2 3 4 Sectio n 5 2. Processes and functions 2-15 Compressor Current Detection Circuit ❑ The Compressor Current Detection Circuit detects the compressor current and, depending on the current range, can stop the compressor motor so it will not be damaged by overcurrent. ❑ Overcurrent can be caused by several factors, particular[...]

  • Page 138

    II - 18 SM830082 1 2 3 4 S ection 5 2. Processes and functions 2-16 Electronic Refrigerant Contr ol V alve Control The circulation volume of the refrigerant is controlled by a pulse type electronic control valve. When the power is switched ON, the opening degree of the electronic control valve is controlled between 90 and 480 steps after setting th[...]

  • Page 139

    II - 19 SM830082 1 2 3 4 Sectio n 5 2. Processes and functions 2-17 V olta ge Detection Contr ol When the power voltage falls below 160 V or rises above 260 V, operation lamp and stand-by lamp flash alternately to protect the compressor and electrical components.[...]

  • Page 140

    3 III - 1 SM830082 3. Electrical data 3. ELECTRICAL D A T A 3-1 Indoor Units (Electric Wiring Diagram, Schematic Diagram) .................. III - 2 4-Way Air Discharge Semi-concealed Type .......................................... III - 2 Ceiling Mounted Type ............................................................................. III - 4 Con[...]

  • Page 141

    3 SM830082 III - 2 3. Electrical data TH1 TH2 TH3 3 1 2 1 2 1 2 1 TH4 3 1 2 1 DP 2P (GRN) 3P (WHT) 4 5 3 2 1 4 3 2 1 2 1 13 2 1 3 1 3 1 3 1 3 1 3 1 4 3 5 6 2 14 3 5 6 5 13 9 7 3 12 S P 1 Power Line Control Line To Outdoor Unit Terminal Plate (5P) Earth Terminal • Electric Wiring Diagram W 854-2-5268-930-00-1 (X) TR1 RC1 2 G U1 U2 GRN/YEL GRN/YEL [...]

  • Page 142

    3 III - 3 SM830082 3. Electrical data • Schematic Diagram S 854-2-5268-930-00-1 (X) FMI 2 1 3 1 2 1 2 1 2 1 2 1 3 1 3 1 3 1 2 3 4 5 1 5P- U2 5P- U1 To Outdoor Unit Indoor Coil Indoor Coil Indoor Coil Room Thermistor TH4 TH3 E3 TH2 E2 TH1 LSW FS CR E1 2 3 1 5 6 4 3 1 1 1 1 8 9 3 3 RC1 1X 3X 1 2 3 LM 2 1 3 9 3 DP 1 1 7 5 3 1 6 7 5 4 3 LL L HH HH T [...]

  • Page 143

    3 SM830082 III - 4 3. Electrical data TH1 TH2 TH3 3 1 2 1 2 1 2 1 TH4 3 1 2 1 2 1 13 2 1 3 1 3 1 3 1 3 1 4 3 5 6 2 14 3 5 6 2 14 3 5 13 9 7 1 Power Line Control Line To Outdoor Unit Terminal Plate (5P) Earth Terminal W 854-2-5268-923-00-1 (T) TR1 RC1 2 G U1 U2 GRN/YEL GRN/YEL Earth Terminal Earth Terminal 49FI LSW YEL BLK BLK BLK RED BLK BLU BRN PN[...]

  • Page 144

    3 III - 5 SM830082 3. Electrical data • Schematic Diagram S 854-2-5268-923-00-1 (T) FMI 2 1 3 1 2 1 2 1 2 1 3 1 3 1 3 1 2 3 4 5 1 5P- U2 5P- U1 To Outdoor Unit Indoor Coil Indoor Coil Indoor Coil Room Thermistor TH4 TH3 E3 TH2 E2 TH1 LSW CR E1 2 3 1 5 6 4 3 1 2 1 1 1 1 8 9 3 3 RC1 1X 3X 1 2 3 DP 2 1 3 9 3 LM 1 1 7 5 3 1 6 7 5 4 3 LL L HH HH T LL [...]

  • Page 145

    3 SM830082 III - 6 3. Electrical data 2 1 4 3 2 1 2 1 13 2 1 3 1 3 1 4 3 5 6 2 14 3 5 6 5 13 9 7 • Electric Wiring Diagram W 854-2-5268-940-00-1 (UH1242) TR1 GRN/YEL 49FI BLK RED BLK BLU WHT PNK RED BRN ORG ORG BRN RED WHT WHT WHT ORG YEL (BLU) WL Controller (CR-TH2442) OC (BLU) RC (BLU) RS1 (BLK) RS2 (WHT) VCC (WHT) T20 (GRN) 3 1 Coil E3 (BRN) F[...]

  • Page 146

    3 III - 7 SM830082 3. Electrical data • Schematic Diagram S 854-2-5268-940-00-0 (UH1242) FMI 2 1 3 1 2 1 2 1 2 1 3 1 3 1 2 1 2 3 4 5 1 5P- U2 5P- U1 To Outdoor Unit TH4 TH3 TH2 TH1 CR 2 3 1 5 6 4 1 1 3 9 8 RC1 1X 3X 2 1 3 9 3 DP 1 7 5 3 1 6 5 4 3 LL L HH 7 HT H DP RY2 T20 F1(5A) RS1 1X 2X 3X -1 -2 Terminal Plate (5P) FM 49FI F2(5A) MOV Symbols De[...]

  • Page 147

    3 SM830082 III - 8 3. Electrical data 2 1 4 3 2 1 2 1 13 2 1 3 1 3 1 4 3 5 6 2 14 3 5 6 5 13 9 7 U1 Power Line Control Line To Outdoor Unit Earth Terminal • Electric Wiring Diagram W 854-2-5268-935-00-0 (KH2442) TR1 U2 G 1 2 GRN GRN/YEL Terminal Plate (4P) 49FI YEL RED BLK BLU WHT PNK RED BRN ORG ORG BRN RED WHT WHT WHT GRY VLT ORG (BLU) WL Contr[...]

  • Page 148

    3 III - 9 SM830082 3. Electrical data • Schematic Diagram S 854-2-5268-935-00-0 (KH2442) FMI 2 1 3 1 2 1 2 1 2 1 3 1 2 1 2 3 4 5 1 2 3 4 5 1 4P- U2 4P- U1 To Outdoor Unit TH4 TH3 TH2 TH1 CR 2 3 1 5 6 4 3 1 1 1 3 RC1 1X 3X 3 2 9 3 LM 1 1 7 5 3 1 6 5 4 3 LL L HH H LM RY1 T20 F1(5A) RS1 1X 2X 3X -1 -2 Terminal Plate (4P) FM F2(5A) MOV Symbols Descri[...]

  • Page 149

    3 SM830082 III - 10 3. Electrical data 2 1 4 3 2 1 2 1 13 2 1 3 1 3 1 4 3 5 6 2 14 3 5 6 5 13 9 7 U1 Power Line Control Line To Outdoor Unit Earth Terminal • Electric Wiring Diagram W 854-2-5268-936-00-0 (KH3642) TR1 U2 G 1 2 GRN/YEL Terminal Plate (4P) 49FI YEL RED BLK BLU WHT PNK RED BRN ORG ORG BRN RED WHT WHT WHT GRY VLT ORG (BLU) WL Controll[...]

  • Page 150

    3 III - 11 SM830082 3. Electrical data • Schematic Diagram S 854-2-5268-936-00-0 (KH3642) FMI 2 1 3 1 2 1 2 1 2 1 3 1 2 1 2 3 4 5 1 2 3 4 5 1 4P- U2 4P- U1 To Outdoor Unit TH4 TH3 TH2 TH1 CR 2 3 1 5 6 4 3 1 1 1 3 RC1 1X 3X 2 1 3 9 3 LM 1 7 5 3 1 6 7 5 4 3 LL L HH H LM RY1 T20 F1(5A) RS1 1X 2X 3X -1 -2 Terminal Plate (4P) FM F2(5A) MOV Symbols Des[...]

  • Page 151

    3 SM830082 III - 12 3. Electrical data • Electric Wiring Diagram TH6 TH7 TH8 2 1 2 1 2 1 3 1 63PH 3 1 3 1 3579 1 3 1 1 3 BLK BLK BLK BLK WHT WHT TR AC230V AC14V FMO PNK BRN GRY GRY WHT RED WHT VLT YEL CT B A UV W 3 2 RS T 3 1 2 1 2 1 4 3 4 3 6 5 6 5 8 7 8 P Connector 8P (WHT) RC2 S7 U1 U2 To Indoor Unit Terminal Plate (2P) Earth Terminal 52C 2 1 [...]

  • Page 152

    3 III - 13 SM830082 3. Electrical data 3-2 Outdoor Units 1 1 1 1 1 CH2442 • Schematic Diagram S 854-2-5268-945-00-0 (CH2442-S) FMO 2 1 3 1 1 2 2 1 2 1 2 1 3 1 TR AC 230V AC 14V TH8 TH7 TH6 2P-2 2P-1 7 3 1 4 RC2 RY3 RY4 RY2 RY1 2 1 1 52C 20S 9 1 3 3 1 7 6 5 5 3 HL M 49FO RY2 63PH -1 RY1 RY3 RY4 H M L 20S 52C RY5 CH 2 1 1 52C 1Y 63PH F2(5A) Symbols[...]

  • Page 153

    3 SM830082 III - 14 3. Electrical data • Electric Wiring Diagram TH6 TH7 TH8 2 1 2 1 2 1 3 1 63PH 3 1 3 1 3579 1 3 1 1 3 BLK BLK BLK BLK WHT WHT TR AC230V AC14V FMO2 PNK BRN GRY GRY WHT RED WHT VLT YEL CT B A UV W 3 2 RS T 3 1 2 1 2 1 4 3 4 3 6 5 6 5 8 7 8 P Connector 8P (WHT) RC3 S7 U1 U2 To Indoor Unit Terminal Plate (2P) Earth Terminal 52C 2 1[...]

  • Page 154

    3 III - 15 SM830082 3. Electrical data 3-2 Outdoor Units 2 2 2 2 2 CH3642 • Schematic Diagram S 854-2-5268-946-00-0 (CH3462-S) FMO2 2 1 3 1 1 2 2 1 2 1 2 1 3 1 TR AC 230V AC 14V TH8 TH7 TH6 2P-2 2P-1 3 7 3 1 4 4 RC3 RY3 RY4 RY2 RY1 2 1 1 52C 20S 9 1 3 3 1 7 6 5 5 3 HL M FMO1 RC2 2 1 7 6 5 HL M 49FO1 49FO2 RY2 63PH -1 RY1 RY3 RY4 H M L 20S 52C RY5[...]

  • Page 155

    3 SM830082 III - 16 3. Electrical data • Electric Wiring Diagram TH6 TH7 TH8 2 1 2 1 2 1 3 1 63PH 3 1 3 1 3579 1 3 1 1 3 BLK BLK BLK BLK WHT WHT TR AC230V AC14V FMO2 PNK BRN GRY GRY WHT RED WHT VLT YEL CT B A UV W 4 2 RS T 4 1 2 1 2 1 4 3 4 3 6 5 6 5 8 7 8 P Connector 8P (WHT) RC3 S7 U1 U2 To Indoor Unit Terminal Plate (2P) Earth Terminal 52C 2 1[...]

  • Page 156

    3 III - 17 SM830082 3. Electrical data 3-2 Outdoor Units 3 3 3 3 3 CH4242 • Schematic Diagram S 854-2-5268-948-00-0 (CH4242-S) FMO2 2 1 3 1 1 2 2 1 2 1 2 1 3 1 TR AC 230V AC 14V TH8 TH7 TH6 2P-2 2P-1 3 7 3 1 4 4 RC3 RY3 RY4 RY2 RY1 2 1 1 52C 20S 9 1 3 3 1 7 6 5 5 3 HL M FMO1 RC2 2 1 7 6 5 HL M 49FO1 49FO2 RY2 63PH -1 RY1 RY3 RY4 H M L 20S 52C RY5[...]

  • Page 157

    1 2 3 4 Sectio n IV - 1 SM830082 4. Service procedures 4. SER VICE PR OCEDURES 4-1 Troubleshooting ...................................................................................... IV - 2 (1) Check before and after Troubleshooting ......................................... IV - 3 (2) General Troubleshooting Flow Chart: Diagnosis and Remedy ....[...]

  • Page 158

    4. Service procedures 1 2 3 4 S ection SM830082 IV - 2 4-1 T r oubleshooting This section explains: This unit is made to be trouble free, and not need much service. However, with time, moving parts wear out, electronic components break down, and sometimes misuse damages the unit. The purpose of this section is to help you when the unit is not worki[...]

  • Page 159

    1 2 3 4 Sectio n IV - 3 SM830082 4. Service procedures (1) Check before and after Troubleshooting Many problems may happen because of wiring or power supply problems, so you should check these areas first. Problems here can cause false results in some of the other tests, and so should be corrected first. 1 1 1 1 1 . Check power supply wiring ❑ Ch[...]

  • Page 160

    4. Service procedures 1 2 3 4 S ection SM830082 IV - 4 (2) General Troubleshooting Flow Chart: Diagnosis and Remedy When you have found a major problem, such as refrigerant not flowing in the system or reduced air circulation, come to this section and find the box listing the problem. Connected to the box are the main causes of the problem and thei[...]

  • Page 161

    1 2 3 4 Sectio n IV - 5 SM830082 4. Service procedures (B) Heating Poor heating Is setting temp. suitable ? Change the setting temp. Is heating load too large ? Review heating load estimate. 4-way valve is defective. Replace the valve. Refrigerant shortage Charge with refrigerant. Refrigerant flow failure Electronic refrigerant control valve is def[...]

  • Page 162

    4. Service procedures 1 2 3 4 S ection SM830082 IV - 6 (3) Meanings of alarm messages When using group control, main indoor unit address setting is duplicated. (For single heat pump type.) Error in Auto. address setting. (No. or capacity of judged indoor unit is small.) Error in Auto. address setting. (No. or capacity of judged indoor unit is large[...]

  • Page 163

    1 2 3 4 Sectio n IV - 7 SM830082 4. Service procedures Thermistor failure Fault with comp. and its circuit Possible Cause of Malfunction Indoor thermistor is either open or damaged. Outdoor thermistor is either open or damaged. Protective device for comp. is activated. EEPROM (ICB of PCB) failure Model setting of indoor unit is not matching the out[...]

  • Page 164

    4. Service procedures 1 2 3 4 S ection SM830082 IV - 8 (4) LED Indication on the Outdoor Unit’s P.C.B. Ass’y If something goes wrong with the outdoor unit, LED lamps on the outdoor P.C.B. Ass’y light up to show the cause of the trouble, in addition to the Alarm message on the remote controller. LED 2 on P.C. board Remote controller LED 1 on P[...]

  • Page 165

    1 2 3 4 Sectio n IV - 9 SM830082 4. Service procedures (5) Symptoms and parts to inspect 1) Symptom: LCD on the remote controller does not display and remote controller does not operate. No No No No No No No No Yes Yes Yes Yes Yes Yes Yes Yes Start Replace the indoor unit PCB. Repair the remote controller wiring. Has the indoor unit PCB fuse blown?[...]

  • Page 166

    4. Service procedures 1 2 3 4 S ection SM830082 IV - 10 2) Symptom: LCD on the remote controller displays “CHECK E01”. (Unusual communication between remote controller and indoor unit.) OK No No Yes Yes NG 2096_THS_I Start Remote controller judges itself with self-diagnostic functions Replace the remote controller. Correct the wiring. Open the [...]

  • Page 167

    1 2 3 4 Sectio n IV - 11 SM830082 4. Service procedures 4) Symptom: LCD on the remote controller is displaying “CHECK E04”. (Unusual communication between the indoor and outdoor units.) 5) Symptom: LCD on the remote controller is displaying “CHECK E05”. (Unusual communication between the indoor and outdoor units) Yes No No Yes No Yes 0335_M[...]

  • Page 168

    4. Service procedures 1 2 3 4 S ection SM830082 IV - 12 6) Symptom: LCD on the remote controller is displaying “CHECK E06”. (Unusual communication between the indoor and outdoor units) 7) Symptom: LCD on the remote controller is displaying “CHECK E08”. (Duplicate indoor unit address setting) 8) Symptom: LCD on the remote controller is displ[...]

  • Page 169

    1 2 3 4 Sectio n IV - 13 SM830082 4. Service procedures 9) Symptom: LCD on the remote controller displays “CHECK P01”. (Indoor fan protection thermostat operation warning) No No Yes Yes Yes 2098_THS_I Start Is there 230-208 V AC between T20-1 and T20-3 on the indoor unit PCB? Is the indoor fan wire winding protection thermostat (49FI) off? Repl[...]

  • Page 170

    4. Service procedures 1 2 3 4 S ection SM830082 IV - 14 10) Symptom: LCD on the remote controller displays “CHECK P02”. (Compressor / outdoor fan protection thermostat operation warning / power supply voltage abnormality) Yes No Yes No 2099_THS_I Start Is the outdoor fan wire winding protection thermostat (49FO) off? Replace the outdoor fan. Is[...]

  • Page 171

    1 2 3 4 Sectio n IV - 15 SM830082 4. Service procedures 11) Symptoms: LCD on the remote controller displays “CHECK P03”. (Alarm for unusual discharge temp. of compressor) 12) Symptom: LCD on the remote controller displays “CHECK P04”. (High-pressure switch activation warning) 0343_M_I Start Unusual discharge gas temperature • Refrigerant [...]

  • Page 172

    4. Service procedures 1 2 3 4 S ection SM830082 IV - 16 13) Symptom: LCD on the remote controller displays “CHECK P05”. (Negative phase detection operation warning) 14) Symptom: LCD on the remote controller displays “CHECK E15”. Yes No No No Yes Yes 0345_M_I Start Check the power breaker etc. and repair No problem Correct the connection Rep[...]

  • Page 173

    1 2 3 4 Sectio n IV - 17 SM830082 4. Service procedures 15) Symptom: LCD on the remote controller displays “CHECK E16”. No No No Yes Yes 0647_M_S Start Repair the wiring. When the group of the units are installed, is there any mis-cross between inter unit control wiring and refrigerant tubing? Confirm less than 5 indoor units are connected. Sel[...]

  • Page 174

    4. Service procedures 1 2 3 4 S ection SM830082 IV - 18 18) Symptom: LCD on the remote controller displays “CHECK H01, H02, H03”. (compressor current detection) * Please check the related part described in the following chart after confirming the code setting (S4) of the outdoor unit’s capacity on the PCB in the outdoor unit. 19) Check the in[...]

  • Page 175

    1 2 3 4 Sectio n IV - 19 SM830082 4. Service procedures (6) Procedures When a Specific Component Does Not Work 1) Indoor fan does not operate. No Yes Is fan motor capacitor normal ? Is there voltage output of P.C.B. Ass'y for fan motor ? • Check resistance of fan motor winding. Replace the fan motor. Replace the capacitor. Replace the P.C.B.[...]

  • Page 176

    4. Service procedures 1 2 3 4 S ection SM830082 IV - 20 4) Compressor motor does not operate. 5) Outdoor fan does not operate. No Yes Does compressor motor magnetic contactor (52C) actuate ? Replace the compressor motor magnetic contactor. Check resistance of compressor motor winding. Replace the compressor. NG 0461_M_I No Yes No Yes Is fan motor c[...]

  • Page 177

    SM830082 IV - 21 SM830082 1 2 3 4 Sectio n 5 4. Service procedures (7) Service Functions of Optional Wired Remote Controller From the remote controller you can control both the operation and settings of the unit as well as perform several useful service checks. This section explains how to use the remote controller on the following items from (A) t[...]

  • Page 178

    4. Service procedures SM830082 IV - 22 1 2 3 4 S ection 5 Fig. IV-4 1929_M_I Sensor address Sensor temperature ° F a Unit No. (Indoor unit address) (B) Check the sensor temperature readings The air conditioner has thermo sensors which are used to control the unit. ❏ Each sensor has an address which is made up of the indoor unit address, and the [...]

  • Page 179

    SM830082 IV - 23 SM830082 1 2 3 4 Sectio n 5 4. Service procedures Refer to the table below for the relationship between the sensor address and the location of the sensor. In case there are no sensor equipped with the unit, “- - -” is shown on the display. C Resetting the remote controller display to previous mode. ❏ To reset the display, pre[...]

  • Page 180

    4. Service procedures SM830082 IV - 24 1 2 3 4 S ection 5 (D) Check the remote controller itself for correct operation The remote controller has a self-diagnostic function to check for problems in the remote controller itself. In order to check, the shorting plug (2P) inserted in the socket (4P) on the back of the remote controller circuit board sh[...]

  • Page 181

    SM830082 IV - 25 SM830082 1 2 3 4 Sectio n 5 4. Service procedures Never press (clear) button unless you want to erase the accessed data in memory. Follow the procedure below only when erasing is necessary. ❏ To erase accessed data, press the button. ❏ When erasing is finished,“----” mark appears on the controller’s display. After checkin[...]

  • Page 182

    4. Service procedures SM830082 IV - 26 1 2 3 4 S ection 5 (F) Confirm and change the indoor unit address (Ref. Fig. IV-8, IV-9) ❏ The purpose of the above function is to let you confirm the indoor unit address after the auto. address operation, and change the indoor unit address if it is needed. a Press the and ( ) buttons at the same time for mo[...]

  • Page 183

    SM830082 IV - 27 SM830082 1 2 3 4 Sectio n 5 4. Service procedures (G) Change the shift temperature in heating mode (Ref. Fig. IV-10) ❏ If the indoor unit is installed at high location (ex. ceiling level), the thermostat tends to turn off at heating mode because of the hot air temperature around ceiling level. In order to solve the problem, the s[...]

  • Page 184

    4. Service procedures SM830082 IV - 28 1 2 3 4 S ection 5 (H) Set the indoor unit address (Ref. Fig. IV-11, IV-12) ❏ This function is usable if the auto. address operation is not available. Indoor unit address can be set one by one by remote controller in such case. 1) In case of group control, branch wiring for group control should be removed te[...]

  • Page 185

    SM830082 IV - 29 SM830082 1 2 3 4 Sectio n 5 4. Service procedures ( I ) Change the period of the filter timer (Ref. Fig. IV-13) ❏ If the period of filter timer is not suitable (for example in case of dirty environment), the period can be shortened to half as follows: a Press the + buttons at same time for more than 4 seconds. b In case of group [...]

  • Page 186

    4. Service procedures 1 2 3 4 S ection SM830082 IV - 30 Fig. IV-14 Copper tube or metallic part Clip Insulation tester Probe Terminal plate 0639_X_S Fig. IV-15 Copper tube or metallic part Clip Insulation tester Probe 0640_X_S Fig. IV-16 From fan motor, compressor and other parts. Clip Probe Insulation tester Metallic part 0641_X_S Fig. IV-17 NOTE [...]

  • Page 187

    1 2 3 4 Sectio n SM830082 IV - 31 SM830082 4. Service procedures (2) Checking the Protective Devices • Disconnect the connector, which consists of P (plug) and S (socket) when you want to check the protective device. • Then check continuity among plug’s (and/or socket’s) terminal as in Fig. IV-18 . • Normality of the protective device can[...]

  • Page 188

    4. Service procedures 1 2 3 4 S ection SM830082 IV - 32 (3) Checking the Electrical Parts 1 Power transformer (TR1) ..................... Indoor unit *Measure the coil resistance. • Primary 230-208V ; Measure the resistance between No.1 and No.3 (WHT lead wires) terminals of 3P (WHT) socket connected to power transformer. • Secondary 14.8V ; Me[...]

  • Page 189

    1 2 3 4 Sectio n SM830082 IV - 33 SM830082 4. Service procedures Fan motor capacitor Compressor motor capacitor 1041_X_S Multimeter Ω Fig. IV-19 6 6 6 6 6 Continuity of fuse on P.C.B. Ass’y • Check for continuity using a multimeter as shown in Fig. IV-20. Method Used to Replace Fuse on PCB Ass’y 1. Remove the PCB Ass’y from the electrical[...]

  • Page 190

    4. Service procedures 1 2 3 4 S ection SM830082 IV - 34 7 Solenoid coil of the electronic refrigerant *Measure the coil resistance. control valve (ERCV) ………… Indoor unit • Measure the resistance between No. 5 (GRY lead wire) and other terminals (another color of lead wires) of 5P (WHT) plug connected to the solenoid coil. Refer to “1-2-[...]

  • Page 191

    1 2 3 4 Sectio n SM830082 IV - 35 SM830082 4. Service procedures (2) Indoor heat exch. coil sensor : TH2(E1), TH3(E2) Outdoor heat exch. coil sensor : TH6(C1), TH7(C2) ( PBC-41E) (4) Thermistor Characteristic Curv (1) Room temp. sensor : TH1 (KTEC-35) – 4 5 1 42 33 24 15 05 96 8 0 5 10 15 20 25 30 35 40 T emperature ( ° F) Resistance (kn ) 1045_[...]

  • Page 192

    4. Service procedures 1 2 3 4 S ection SM830082 IV - 36 (5) PCB Setting ● Setting of outdoor control PCB (A) Standard control (single outdoor unit) In case of single outdoor unit installation, even if in case of twin, triple or quartet type (2, 3 or 4 indoor units), no setting necessary. Keep factory shipment state (R.C. address is set in “0”[...]

  • Page 193

    1 2 3 4 Sectio n SM830082 IV - 37 SM830082 4. Service procedures (6) R.C. Address Setting Method (“0” when shipped from factory) 1 ON ON side OFF side 2 0 R.C. address R.C. address R.C. address (S3 2P dip switch, green or blue) (S2 Rotary switch, Black) 00 auto address Both OFF Set to 0 1 ON 10 position 20 position ON side : S2 : S3 OFF side Re[...]

  • Page 194

    4. Service procedures 1 2 3 4 S ection SM830082 IV - 38 (7) Automatic Address Setting Method (8) Displaying Indoor / Outdoor Unit Com- bination Numbers Display the indoor / outdoor unit address after auto- matic address setting. (1) When installing multiple units, match the indoor unit address numbers and the outdoor R.C. address numbers and displa[...]

  • Page 195

    1 2 3 4 Sectio n SM830082 IV - 39 SM830082 4. Service procedures (9) Items to Check Prior to Test Run S4. Capacity code 1 ON ON side 2094_C_I OFF side S4 (green or Blue) capacity code (4P DIP switch) Outdoor control PCB 234 (1) Turn on the power supply switch more than 5 hours before in order to charge the crank case heater. (2) Fully open the outd[...]

  • Page 196

    4. Service procedures 1 2 3 4 S ection SM830082 IV - 40 (10) Test Run ■ Preparing for Test Run ● Before attempting to start the air conditioner, check the following: (1) All loose matter is removed from the cabinet especially steel filings, bits of wire, and clips. (2) The control wiring is correctly connected and all electrical connections are[...]

  • Page 197

    1 2 3 4 Sectio n SM830082 IV - 41 SM830082 4. Service procedures Set the outdoor unit R.C. address. Turn on power supply switch. Execute auto. address operation with the remote controller. Press A. ADD (S1) button (See P87). or Execute auto. address operation with the remote controller. Press A. ADD (S1) button (See P87). or CN4: Open (*) Set the o[...]

  • Page 198

    4. Service procedures 1 2 3 4 S ection SM830082 IV - 42 (11) PCBs and Their Location ● PCB (CR-TH2442) FOR INDOOR UNITS CN75 (WHT) : VCC CN73 (BLK) : RS1 CN71 (YEL) : T10 CN70 (WHT) : T6 CN44 (BRN) : EMG CN40 (BLU) : OC F3 : Fuse 0.5A CN91 (WHT) : CRV CN2 (WHT) : TEST CN3 (WHT) : TMX60 CN5 (WHT) : CHK F1 : Fuse 250V / 5A D80 LED : POW CN42 (BLU) [...]

  • Page 199

    1 2 3 4 Sectio n SM830082 IV - 43 SM830082 4. Service procedures ● PCB (CR-CH2442) FOR OUTDOOR UNITS CN007 (RED) : EXCT S001 (A. ADD) : Auto address S004 (BLU) : Capacity code S003 (BLU) : R.C. address S002 (BLK) : R.C. address CN026 (YEL) : TMX60 CN017 (RED) : 63PH F001 : Fuse 250V / 3A CN001 (BLU) : SUP F002 : Fuse 250V / 3A CN025 (WHT) : CT1 C[...]

  • Page 200

    4. Service procedures 1 2 3 4 S ection SM830082 IV - 44 (12) Checking procedure for each PC Board The indoor and outdoor PCBs have functions to check the signal transmission and reception of the serial circuit and to check the microcomputer operation. (Self-diagnosis function) ● Precautions required when checking 1. After turning off the power to[...]

  • Page 201

    1 2 3 4 Sectio n SM830082 IV - 45 SM830082 4. Service procedures (13) TMX60 pins When shorting TMX60 pins on the indoor and outdoor PCBs, operations shown on the above table will be per- formed on each indoor and outdoor unit. Use TMX60 pins to perform a quick check. • When checking pin operation, stop the indoor and outdoor units with the remote[...]

  • Page 202

    SANYO FISHER Service Company CENTRAL REGION 1739 Sands Place, Suite G Marietta, GA 30067 Phone: (770) 951-8284 Fax: (770) 951-2077 Ju ly . / ’ 01 Printed in U.S.A.[...]