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Friedrich ZQ05B10 manual

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Table of contents for the manual

  • Page 1

    Room Air Conditioner Ser vice and P ar ts Man ual ZStar ® ZQ05/ZQ07 (06/05) ZQ05B10 ZQ07B10[...]

  • Page 2

    —2— CONTENTS 1. PREF A CE ...................................................................................................................................................3 1.1 FEA TURES................................................................................................................... ..................................3 1.2 SP[...]

  • Page 3

    —3— 1. PREF A CE This ser vice manual provides v arious ser vice inf or mation, including the mechanical and electr ical par ts, etc. This room air conditioner was manuf actured and assembled under a strict quality control system. The refrigerant is charged at the f actory . Be sure to read the safety precautions prior to ser vicing the unit. 1[...]

  • Page 4

    —4— 1.3 LOCA TIONS OF CONTROLS 1.4 SAFETY PRECA UTIONS 1. When ser vicing, set the RO T AR Y SWITCH to Off and unplug the power cord. 2. Obser ve the original lead dress. If a shor t circuit is found, replace all parts which hav e been ov erheated or damaged by the short cir- cuit. 3. After ser vicing, make an insulation resistance test to pre [...]

  • Page 5

    — 5 — 2. DISASSEMBL Y INSTR UCTIONS 2.1 MECHANICAL P AR TS 2.1.1 FRONT GRILLE 1. Disconnect the unit from source of power . 2. Remov e the two knobs by pulling them off . Using a screwdriv er , remov e the screw that secures the front grille to control board. (See Figure 1) 3. Push the front grille up from the bottom. Pull the top of the front [...]

  • Page 6

    — 6 — 2.2 AIR HANDLING P AR TS 2.2.1 AIR GUIDE UPPER 1. Disconnect the unit from the pow er source . 2. Remov e the front grille. (Refer to Section 2.1.1) 3. Remov e the cabinet. (Refer to Section 2.1.2) 4. Rem o v e the control panel . (Ref er to Section 2.1.3) 5. Remov e 2 screws that secure the air guide upper to air guide low er . (See Figu[...]

  • Page 7

    — 7 — 2.2.3 MO T OR 1. Disconnect the unit from the pow er source . 2. Remov e the front grille. (Refer to Section 2.1.1) 3. Remov e the cabinet. (Refer to Section 2.1.2) 4. Rem o v e the control panel . (Ref er to Section 2.1.3) 5. Remov e the air guide upper . (Ref er to Section 2.2.1) 6. Remov e the compressor , turbo fan, f an and shroud. ([...]

  • Page 8

    — 8 — 2.3.2 COMPRESSOR 1. Remov e the front grille and cabinet. (Ref er to Section 2.1) 2. Discharge the refrigerant by using a refrigerant recov er y system. 3. Remov e the overload protector . (Ref er to Section 2.3.1) 4. After discharging the unit completel y , unb r a z e the suction and discharge pipes at the compressor connections. 5. Rem[...]

  • Page 9

    — 9 — 2.3.6 PO WER CORD 1. Disconnect the unit from source of power . 2. Remov e the front grille. (Refer to Section 2.1.1) 3. Remov e the cabinet. (Refer to Section 2.1.2) 4. Rem o v e a scr e w that secures control panel to base pan. (Ref er to Section 2.1.3) 5. Pulls the control panel t ow ard y ou. 6. Disconnect the 2 receptacles and remov [...]

  • Page 10

    2.4.2 E V APOR A T OR /CONDENS E R 1. Remov e the cabinet. 2. Discharge the refrigerant by using a refrigerant recov er y system. 3. Remov e the air guide upper . (Refer to Section 2.2.1) 4. After discharging the refrigerant completely , unb r a z e the interconnecting tube at the proper connections. 5. Rem o v e the proper coil . 6. Re-install by [...]

  • Page 11

    — 11 — Equipment needed: V acuum pump, charging cylinder , manifold gauge , brazing equipment, pinch-off tool capable of making a v apor proof seal, leak detector , tubing cutter , hand tools to remove components and service valv e. B A B A B A COMPOUND GAUGE SEE INSETS BELOW CAPILLARY TUBE EVAPORATOR (LOW PRESSURE SIDE) COMPRESSOR CONDENSER (H[...]

  • Page 12

    — 1 2 — 3 . T R OUBLESHO O TING GUIDE 3 .1 OUTSIDE DIMENSIONS (unit: mm [in]) 370 (14 9 / 16 ") 312 (12 1/4 ") 370 (14 9 / 16 ") 312 (12 1/4 ") 29 (1 5 / 32 ") 120 (4 3 / 4 ") 27.5 (1 3 / 32 ") 346 (13 5 / 8 ") 472 (18 9/16 ") 42 (1 21 / 32 ") 42 (1 21 / 32 ") 155(6 3/32 ") 12 (0.4 1/1[...]

  • Page 13

    — 1 3 — 3 .2 PIPING SYSTEM Figure 2 2 is a b r ief desc r iption of the impo r tant components and their function in what is called the ref r ige r ation system. This will help you to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle. COOLED AIR HOT DISCHARGED AIR MOTOR COMPRESSOR ROOM AIR HEAT LOAD CAPILLA[...]

  • Page 14

    — 1 4 — 3 .3 T R OUBLESHO O TING GUIDE In gene r al, possi b le trou b le is classified in t w o categories . The one is called Starting Failure which is caused by an electrical def ect. The other is Ineffective Air Con- ditioning caused b y a de f ect in the ref r ige r ation circuit and /or improper application. Unit is running but cooling is[...]

  • Page 15

    — 1 5 — Fails to Start Improper thermostat setting Loose ter minal connection Improper wiring Che c k p o w er sourc e . Drop of pow er voltage . Capacitor check. Replacement. Che c k control s witch setting. Compressor f ails to star t. Def ect of compressor capacitor . Replacement of compressor (Motor damaged). Irregular motor insulation ( ?[...]

  • Page 16

    — 1 6 — ROOM AIR CONDITIONER V OL T A GE LIMITS NAME PLA TE RA TING MINIMUM MAXIMUM 115V ± 10% 103.5V 126.5V COMPLAINT CA USE REMED Y F an motor will not run. No pow er Check v oltage at outlet. Correct if none. P ower supply cord Check v oltage to rotar y switch. If none , check power supply cord. Replace cord if circuit is open. Rotar y s wi[...]

  • Page 17

    — 17 — COMPLAINT CA USE REMED Y F an motor noise. F an If crac ked, out of balance , or par tially missing, replace it. Blow er If crac ked, out of balance , or par tially missing, replace it. Loose set screw Tighten it. W orn bear ings If knocking sounds contin ue when running or loose, replace the motor . If the motor hums or noise appears to[...]

  • Page 18

    — 18 — COMPLAINT CA USE REMED Y Compressor cycles on F an motor If not running, deter mine the cause. Replace if ov er load. required. Condenser air flow Remo ve the cabinet, inspect the interior surf ace restriction of the condenser . If restricted, clean carefully with a vacuum cleaner (do not damage fins) or brush. Clean the inter ior base b[...]

  • Page 19

    — 19 — 4 . CIRCUIT DI A GRAM 1 2 6 7 5 3854AR2330A COMP. MOTOR ROCKER SWITCH YL BR THERMOSTAT OLP BR R BL RD BK OR(BR) CAPACITOR F H C YL ROTARY SWITCH 2H L M BK BR RD BL BK POWER INPUT BK(BR) (Plain) WH(BL) (Ribbed) GN(GN/YL) RD BL YL OR(BR) 4 6 8 1 3 5 7 BL RD BK BR WIRING DIAGRAM SYNC. M. S C 3 4 POWER CORD ASSY FAN MOTOR COMPRESSOR ROTARY S[...]

  • Page 20

    — 2 0 — 5 . EXPLODED VIEW 152302 149410 147581 147582-2 147582-1 135313 352390 135312 130410 359012 W48602 354210 349480 352380 149980 559011 346811 554030 W48602 130910 266003 264110 269310 W0CZZ 249950 135500 550140 554160 567502 352115 352111 352113 35211A[...]

  • Page 21

    —2 1 — 6 . SE R VICE P A R TS LIST • ZQ05 B 10 . ZQ07B10 Loc No FRIEDRICH Description 130410 67302921 BASE ASSEMBLY,WELD[SINGLE] 130910 67303709 CABINET ASSEMBLY,SINGLE 135312 67306003 GRILLE ASSEMBLY,FRONT(SINGLE) 135313 67306103 GRILLE,INLET 135500 67300309 COVER 147581 67304600 LINK 147582-1 67304500 VANE,VERTICAL 147582-2 67304501 VANE,VE[...]

  • Page 22

    Loc No FRIEDRICH Description 130410 67302921 BASE ASSEMBLY,WELD[SINGLE] 130910 67303709 CABINET ASSEMBLY,SINGLE 135312 67306003 GRILLE ASSEMBLY,FRONT(SINGLE) 135313 67306103 GRILLE,INLET 135500 67300309 COVER 147581 67304600 LINK 147582-1 67304500 VANE,VERTICAL 147582-2 67304501 VANE,VERTICAL 149980 67303100 SHROUD 152302 67304300 FILTER(MECH),A/C [...]

  • Page 23

    — 2 3 — MEMO[...]

  • Page 24

    Post Office Box 1540 • 4200 N. Pan Am Expressway • San Antonio, Texas 78295-1540 • (210) 357-4400 • FAX (210) 357-4490 FRIEDRICH AIR CONDITIONING CO. Visit our web site at www.friedrich.com Use F actor y Cer tified P ar ts...[...]