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Mitsubishi Electronics 8 manual

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Table of contents for the manual

  • Page 1

    AIR-COOLED R OOFT OP P A CKA GED AIR CONDITIONERS Series COOLING ONL Y : PR-5,8,10,15,20 HEA T PUMP : PRH-5,8,10,15,20 PRH-5,8,10,15,20-L D A T A BOOK[...]

  • Page 2

    - 1 - CONTENTS SAFETY FOR USE -----------------------------------------------------2 A COMPLETE LINE UP -----------------------------------------------4 FEA TURES ---------------------------------------------------------------5 DESCRIPTIONS --------------------------------------------------------6 MECHANICAL SPECIFICA TIONS-------------------------[...]

  • Page 3

    SAFETY FOR USE - 2 - fire may result. If you need to have the unit The unit should not be installed by the user. For installation, conduct the w o rk correctly by follow ing the Installation Manual. Install the unit on a spot sufficiently durable against the unit w eight. A ll electric w ork must be performed by licensed technician, according to lo[...]

  • Page 4

    - 3 - If the flammable gas can accumulate around the unit, an explosion can occur. The erroneous operation of air conditioner may be induced by inverter equipment, independent pow er device, medical equipment or communication equipment. While the erroneous operation of medical equipment or communication equipment may caused by the air conditioner. [...]

  • Page 5

    - 4 - A COMPLETE LINE UP Cooling capacity 14,000 kcal/h 55,600 BTU/h 16.3 kW Cooling capacity 20,500 kcal/h 81,300 BTU/h 23.8 kW PR-5YC PRH-5Y A PRH-5Y A-L Cooling capacity 39,800 kcal/h 157,900 BTU/h 46.3 kW Cooling capacity 52,300 kcal/h 207,500 BTU/h 60.8 kW Cooling capacity 25,500 kcal/h 101,200 BTU/h 29.7 kW Heatling capacity 19,800 kcal/h 78,[...]

  • Page 6

    FEA TURES - 5 - High Sensible Cooling Capacity The sensible cooling capacity has been significantly improved through optimized heat exchanger design. Comf or t Heating The PRH series are designed to provide effective heating even when the outside temperature is down to 0˚C. The PRH-L series are designed to provide effective heating even when the o[...]

  • Page 7

    MECHANICAL SPECIFICA TIONS - 6- General All units are factory assembled, piped, internally wired and fully charged with R-22. They are also tested and checked under a strict quality control system in the factory. All units are designed for outdoor rooftop or ground level installation. Exterior surfaces of all units are phosphatized, zinc-coated ste[...]

  • Page 8

    TYPICAL INST ALLA TION EXAMPLE - 7- PR PRH PRH-L[...]

  • Page 9

    - 8 - SPECIFICA TIONS ITEM PR-5YC PRH-5YA PRH-5YA-L PR-8YC PRH-8YA PRH-8YA-L PR-10YC PRH-10YA PRH-10YA-L PR-15YC PRH-15YA PRH-15YA-L PR-20YC PRH-20YA PRH-20YA-L 16.3 23.8 29.7 46.3 60.8 TOTAL COOLING CAPACITY BTU/h 55,600 81,300 101,200 157,900 207,500 (GROSS) kcal/h 14,000 20,500 25,500 39,800 52,300 kW kW 13 19.7 25.3 38.4 50.2 SENSIBLE COOLING C[...]

  • Page 10

    - 9 - ELECTRICAL D A T A Heating VOLT ITEM PR-5YC PRH-5YA PRH-5YA-L PR-8YC PRH-8YA PRH-8YA-L PR-10YC PRH-10YA PRH-10YA-L PR-15YC PRH-15YA PRH-15YA-L PR-20YC PRH-20YA PRH-20YA-L TOTAL INPUT kW 5. 4 8. 3 11.4 16.8 22.7 TOTAL RUN CURRENT A 10.3 15.9 20.2 30.8 39.1 POWER FACTOR % 7 3 73 79 76 81 START CURRENT A 6 2 87 1 0 0 1 1 5 1 3 5 415V COMPRESSOR [...]

  • Page 11

    OUTDOOR DB ˚C INDOOR INDOOR 20.0 25.0 30.0 35.0 40.0 46.0 DB ˚C WB ˚C Q kW SHC kW S HF T/I kW Q kW SHC kW SH F T/I kW Q kW SH C kW S HF T/I kW Q kW SHC kW SH F T/I kW Q kW SHC kW S HF T/I kW Q kW SHC kW S H F T/I kW 15 16.4 11.3 0.69 4.5 15.8 11.1 0.70 4.7 15.2 10.8 0.71 4.9 14.5 10.4 0.72 5.1 13.8 10.1 0.73 5.4 13.0 9.8 0.75 5.7 20 16 16.9 10.3[...]

  • Page 12

    OUTDOOR WB ˚C INDOOR -10.0 -5.0 0 . 0 DB ˚C Q kW T/I kW Q kW T/I kW Q kW T/I kW 15 9.5 3.7 11.2 3.8 13.1 4.0 16 9.5 3.7 11.2 3.8 13.0 4.0 17 9.4 3.7 11.1 3.8 12.9 4.1 18 9.4 3.7 11.1 3.8 12.9 4.1 19 9.3 3.7 11.0 3.9 12.8 4.2 20 9.3 3.7 10.9 3.9 12.7 4.2 21 9.2 3.7 10.9 3.9 12.7 4.2 22 9.2 3.8 10.8 4.0 12.6 4.3 23 9.1 3.8 10.7 4.0 12.5 4.3 24 9.1 [...]

  • Page 13

    OUTDOOR DB ˚C INDOOR INDOOR 20.0 25.0 30.0 35.0 40.0 46.0 DB ˚C WB ˚C Q kW SHC kW S HF T/I kW Q kW SHC kW SH F T/I kW Q kW SHC kW SH F T/I kW Q kW SHC kW S H F T/I kW Q kW S HC kW S HF T/I kW Q kW SHC kW SH F T/I kW 15 22.8 23.5 24.2 22.8 23.5 24.2 25.0 25.7 23.5 24.2 25.0 25.7 26.5 27.3 25.0 25.7 26.5 27.3 28.1 29.0 25.7 26.5 27.3 28.1 29.0 30.[...]

  • Page 14

    OUTDOOR WB ˚C INDOOR 5 . 0 1 0 . 0 1 5 . 0 DB ˚C Q kW T/I kW Q kW T/I kW Q kW T/I kW 15 22.9 6.5 26.0 7.1 29.5 7.7 16 22.8 6.6 25.9 7.2 29.5 7.8 17 22.7 6.6 25.9 7.2 29.4 7.9 18 22.6 6.7 25.8 7.3 29.3 8.0 19 22.6 6.8 25.7 7.4 29.2 8.1 20 22.5 6.8 25.6 7.5 29.1 8.2 21 22.4 6.9 25.5 7.5 29.1 8.3 22 22.3 6.9 25.5 7.6 29.0 8.4 23 22.2 7.0 25.4 7.6 28[...]

  • Page 15

    OUTDOOR DB ˚C INDOOR INDOOR 20.0 25.0 30.0 35.0 40.0 46.0 DB ˚C WB ˚C Q kW SHC kW S HF T/I kW Q kW SHC kW SH F T/I kW Q kW SHC kW SH F T/I kW Q kW SH C kW S HF T/I kW Q kW SHC kW S H F T/I kW Q kW S HC kW S HF T/I kW 15 29.4 21.2 0.72 9.5 28.4 20.7 0.73 9.8 27.3 20.2 0.74 10.2 26.1 19.6 0.75 10.7 24.4 18.5 0.76 11.2 23.3 18.4 0.79 11.9 20 16 30.[...]

  • Page 16

    OUTDOOR WB ˚C INDOOR 5 . 0 10.0 15.0 DB ˚C Q kW T/I kW Q kW T/I kW Q kW T/I kW 15 31.9 9.0 36.5 9.8 41.1 10.5 16 31.8 9.1 36.4 9.9 40.9 10.6 17 31.7 9.2 36.2 10.0 40.7 10.7 18 31.6 9.2 36.1 10.0 40.6 10.8 19 31.4 9.3 35.9 10.1 40.4 10.9 20 31.3 9.4 35.8 10.2 40.2 11.0 21 31.2 9.5 35.7 10.3 40.1 11.1 22 31.1 9.5 35.5 10.4 39.9 11.2 23 30.9 9.6 35.[...]

  • Page 17

    OUTDOOR DB ˚C INDOOR INDOOR 20.0 25.0 30.0 35.0 40.0 46.0 DB ˚C WB ˚C Q kW SHC kW S HF T/I kW Q kW SHC kW S HF T/I kW Q kW SHC kW S HF T/I kW Q kW SHC kW SH F T/I kW Q kW SHC kW S HF T/I kW Q kW SHC kW S H F T/I kW 15 44.5 32.0 0.72 13.9 43.3 31.2 0.72 14.5 42.0 30.7 0.73 15.2 40.8 30.2 0.74 15.9 39.5 29.6 0.75 16.6 37.8 29.1 0.77 17.5 20 16 45.[...]

  • Page 18

    OUTDOOR DB ˚C INDOOR INDOOR -5.0 0.0 5.0 10.0 15.0 DB ˚C WB ˚C Q kW SHC kW S HF T/I kW Q kW SHC kW SH F T/I kW Q kW S HC kW S H F T/I kW Q kW SHC k W S H F T/I kW Q kW SHC kW S H F T/I kW 15 47.6 33.8 0.71 12.4 47.2 33.5 0.71 12.5 46.8 33.2 0.71 12.7 46.2 33.3 0.72 13.0 45.4 32.7 0.72 13.4 20 16 49.0 29.9 0.61 12.5 48.6 30.1 0.62 12.6 48.1 29.8 [...]

  • Page 19

    OUTDOOR DB ˚C INDOOR INDOOR 20.0 25.0 30.0 35.0 40.0 46.0 DB ˚C WB ˚C Q kW SHC kW SH F T/I kW Q kW SHC kW SH F T/I kW Q kW SHC kW S HF T/I kW Q kW SHC kW SH F T/I kW Q kW SHC kW SH F T/I kW Q kW SHC kW SH F T/I kW 15 59.3 42.7 0.72 18.7 57.4 41.9 0.73 19.5 55.4 40.4 0.73 20.3 53.4 39.5 0.74 21.3 51.4 38.6 0.75 22.3 48.8 37.6 0.77 23.6 20 16 61.3[...]

  • Page 20

    OUTDOOR DB ˚C INDOOR INDOOR -5.0 0.0 5.0 10.0 15.0 DB ˚C WB ˚C Q kW SHC kW S HF T/ I kW Q kW SHC kW SH F T/I kW Q kW SHC kW SH F T/I kW Q kW SHC kW SH F T/I kW Q kW SHC kW SH F T/I kW 15 64.2 44.9 0.70 16.7 63.9 44.7 0.70 16.9 63.2 44.2 0.70 17.2 62.3 43.6 0.70 17.6 61.0 43.3 0.71 18.1 20 16 66.2 41.0 0.62 16.9 65.9 40.9 0.62 17.1 65.2 40.4 0.62[...]

  • Page 21

    10 15 20 25 30 20 30 40 50 24 46 -10 15 10 30 25 20 Indoor temp.(˚CWB) Outdoor temp.(˚CDB) Indoor temp.(˚CDB) Outdoor temp.(˚CWB) 0 - 5 10 5 15 27 10 0 -10 Range for continuous operation Range for continuous operation Use for Low temp.parts Range for continuous operation 10 15 20 25 30 20 30 40 50 24 46 -10 15 10 30 25 20 Indoor temp.(˚CWB) Ou[...]

  • Page 22

    External static pressure (Pa) (CMM) Airflow 1170 1000 1500 1330 1800 1700 1600 1500 600 500 100 200 300 400 1100 1300 Operation range Fan speed (rpm) 80 90 1000 1200 1400 60 70 1.5kW 1.1kW ( / s) - 21 - F AN PERFORMANCE Airflow 750 ( / s) (CMM) 45 830 50 1000 60 Fan speed (rpm) 1800 1700 1600 1500 1400 1300 1200 1100 100 200 300 400 500 External st[...]

  • Page 23

    - 22 - 100 External static pressure (Pa) (CMM) ( / s) Airflow 1830 1670 1500 2000 200 1800 1700 1600 1500 120 600 400 300 500 Fan speed (rpm) 1200 1400 90 100 1300 110 Operation range 2.2kW 1.5kW CMM 90 100 110 120 L/S 1500 1660 1830 2000 100 FAN SPEED rpm 1320 1450 1450 1550 PULLEY SIZE m m 127 139.7 139.7 190.5 (MOTOR SIDE) inch 5.0 5.5 5.5 7.5 P[...]

  • Page 24

    - 23 - 100 200 External static pressure (Pa) (CMM) Airflow 2830 3670 3330 3000 Operation range 400 600 300 500 700 1200 1100 1000 900 800 700 180 200 220 170 Fan speed (rpm) 4.0kW 3.0kW ( / s) CMM 170 180 190 200 210 220 L/S 2830 3000 3170 3330 3500 3670 100 FAN SPEED rpm 730 810 810 840 910 940 PULLEY SIZE mm 127 127 127 139.7 127 139.7 (MOTOR SID[...]

  • Page 25

    - 24 - e a r1 r3 f w L0 r2 r2 K K0 øP.C 16.5mm B type 11.0mm 40˚ Sectional plan of V-belt Shape of V-belt Nominal Dia. øP.C a ( ˚ ) L0 W K K0 e f r1 r2 r3 V-belt thickness (Reference) B Over 125 Under 160 Over 160 Under 200 Over 200 34 15.86 36 38 16.07 16.29 12.5 5.5 9.5 19.0 12.5 0.2~0.5 0.5~1.0 1~2 11 Pulley outside dimensions are sho wn bel[...]

  • Page 26

    - 25 - NC CUR VES NC-20 NC-30 NC-40 NC-50 NC-60 NC-70 50Hz Note. The measuring point is 1m from the comp. service panel. 20 30 40 50 60 70 80 90 45 octave-band frequency [Hz] octave-band lebel db (0db=0.0002ubar) over all 63 90 125 180 250 355 500 710 1000 1400 2000 2800 4000 5600 8000 10 70 64db COOLING & HEATING 50 52 56 58 60 62 67 500 Hz 25[...]

  • Page 27

    NC-20 NC-30 NC-40 NC-50 NC-60 NC-70 50Hz Note. The measuring point is 1m from the comp. service panel. COOLING & HEATING 71 44 49 57 59 61 63 69 64db 500 Hz 250 Hz 125 Hz 8000 Hz 4000 Hz 2000 Hz 1000 Hz 63 Hz CONDITION A scale 20 30 40 50 60 70 80 90 45 octave-band frequency [Hz] octave-band lebel db (0db=0.0002ubar) over all 63 90 125 180 250 [...]

  • Page 28

    68db COOLING & HEATING NC-20 NC-30 NC-40 NC-50 NC-60 NC-70 50Hz 10 8000 5600 4000 2800 2000 1400 1000 710 500 355 250 180 125 90 63 all over octave-band lebel db (0db=0.0002ubar) octave-band frequency [Hz] 45 90 80 70 60 50 40 30 20 A scale CONDITION 63 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz 125 Hz 250 Hz 500 Hz 77 70 65 60 58 51 48 Note. The measu[...]

  • Page 29

    - 28 - 55.5 85 1820 85 55.5 35 35 1990 1742.7 25 25 37 556.5 49 464 24 235 717 10 2010 10 464 428 1879 62 990 540 428 1200 54.5 22 54.5 2060 1951 22 1080 1840 25 25 2010 1879 1820 60 60 150 150 200 200 200 200 200 200 200 200 200 32 14 200 200 14 10 62 62 32 62 WIRING HOLE DRAIN 1B PT CONDENSER AIR INLET (3 SIDES) SUPPLY AIR RETURN AIR RETURN AIR A[...]

  • Page 30

    - 29 - WIRING DIA GRAMS FZ0 FZ1 30 CZ FZ0 30 CZ 30 CZ FZ1 CZ 52C (3MIN) TM 52C FZ1 CH PR-10YC ···60A MF2 INTERNAL PROTECTOR 11 PR- 8YC ···50A 7 51F1 CIRCUIT BREAKER (FIELD SUPPLY) MC INTERNAL PROTECTOR C 51 1 51C 3 2 1 51F2 3 26L 23 WA CZ WHITE TB2 BLACK RED 51F1 MF1 WHITE RED 52F TB2 T1 T2 S1 S2 R1 R2 RED RED RED WHITE WHITE BLACK BLACK BLAC[...]

  • Page 31

    - 30 - FZ0 2 GL MF1 52 C2 52 C1 52 F TM CZ1 CZ2 FZ1 CZ2 FZ1 63 H2 51F3 3 1 51C2 26 L2 CZ2-2 CZ1-2 30 FZ0 50Hertz 380~415Volt 3Phase Power supply CH2 CH1 PR -15YC···100A PR -20YC···125A TM (3MIN) CZ2-1 30 FZ0 CZ1-1 30 L3 PE L2 L1 CIRCUIT BREAKER (FIELD SUPPLY) CZ2 L1 C1 26 51 1 3 51F2 H1 63 9 CZ2 30 CZ1 30 FZ1 51F3 51F2 52 52 C1 C2 RL2 RL1 Low[...]

  • Page 32

    - 31 - PR- 8YC ···50A 30 CZ 30 CZ 52C 30 CZ MF1 52F FZ CZ Over current relay(compressor) High-pressure switch Terminal block Fuse Transformer Crankcase heater Contactor(fan I/D) Over current relay(fanI/D,O/D) Contactor(compressor) Fan motor(outdoor) Fan motor(indoor) Compressor motor 63H TB1~4 51C Surge absorber circuit board DSA R/C T H 5 Therm[...]

  • Page 33

    - 32 - 52C 30 CZ 30 CZ C FZ1 FZ0 FZ4 FZ3 52 F2 52 F4 52 F3 FZ2 52 F1 GL RL TM MF1 CZ Timer (anti short cycle) TM <GL> <RL> Lamp (operation) Lamp (check) Thermostat (room temp.) <23WA> Switch (on) <SW1> Switch (off) 30CZ CZ Auxiliary relay (check) Auxiliary relay (compressor) Auxiliary relay (fan) FZ0,1 Contactor (fan O/D) Au[...]

  • Page 34

    - 33 - Note: 1.The dotted lines show field wiring. 2.The figure in the parentheses show field supply parts. 3.Color of earth wire is yellow and green twisting. 4.Not specified color of wire is brown. 5.Specification subject to change without notice. Caution, 1.To protect each Fan motors and Compressors from abnormal current,these Over current relay[...]

  • Page 35

    - 34 - 30 CZ 30 CZ 52C 30 CZ FZ4 FZ3 52 F1 MF1 52 F2 52 F4 52 F3 FZ2 FZ1 CZ Surge absorber circuit board DSA Thermistor(room temp) TH5 Remote controller R/C FZ2~4 Auxiliary relay(fan O/D) 52F2~4 Contactor(fan O/D) Thermistor(pipe) Indoor board (compressor) Over current relay FZ1 Auxiliary relay(check) Auxiliary relay(compressor) Auxiliary relay(fan[...]

  • Page 36

    HZ 14 FZ0 FZ1 30 CZ FZ0 30 CZ 30 CZ FZ1 CZ 52C (3MIN) TM 52C FZ1 CH PRH-10YA, PRH-10YA-L ··· 60A MF2 INTERNAL PROTECTOR 11 PRH- 8YA, PRH- 8YA-L ··· 50A 8 51F1 CIRCUIT BREAKER (FIELD SUPPLY) MC INTERNAL PROTECTOR C 51 1 51C 3 2 1 51F2 3 26L 23 WA D1 26 CZ WHITE TB2 BLACK RED 51F1 MF1 WHITE RED 52F TB2 X1 T1 T2 S1 S2 R1 R2 RED RED RED WHITE WHI[...]

  • Page 37

    - 36 - FZ0 X3 X1 2 GL MF1 52 C2 52 C1 21 S41 21 S42 52 F TM CZ1 CZ2 FZ1 HZ X4 X2 CZ2 FZ1 63 H2 51F3 3 1 51 26 C2 L2 CZ2-2 CZ1-2 30 FZ0 50Herts 380~415Volt 3Phase Power supply CH2 CH1 PRH-15YA PRH-15YA-L ···100A PRH-20YA PRH-20YA-L ···125A TM (3MIN) CZ2-1 30 FZ0 CZ1-1 30 L3 L2 L1 CIRCUIT BREAKER (FIELD SUPPLY) CZ2 L1 C1 26 51 1 3 51F2 H1 63 10[...]

  • Page 38

    - 37 - PRH- 8YA, PRH- 8YA-L···50A 30 CZ 30 CZ 52C CM X1 X2 21 S4 30 CZ MF1 52F FZ CZ HZ Over current relay(compressor) High-pressure switch Terminal block Fuse Transformer Crankcase heater Contactor(fan I/D) Over current relay(fanI/D,O/D) Contactor(compressor) Fan motor(outdoor) Fan motor(indoor) Compressor motor 63H TB1~4 51C Surge absorber cir[...]

  • Page 39

    - 38 - 52C 30 CZ 30 CZ C 21 S4 FZ1 FZ0 X1 X2 FZ4 FZ3 52 F2 52 F4 52 F3 FZ2 52 F1 GL RL TM MF1 CZ HZ Timer (anti short cycle) TM <GL> <RL> Lamp (operation) Lamp (check) 4-Way valve Thermostat (room temp.) <23WA> Switch (on) <SW2> Switch (off) <SW1> 21S4 30CZ HZ CZ X1·2 Switch (operatin mode) Auxiliary relay (check) Aux[...]

  • Page 40

    - 39 - Note: 1.The dotted lines show field wiring. 2.The figure in the parentheses show field supply parts. 3.Color of earth wire is yellow and green twisting. 4.Not specified color of wire is brown. 5.Specification subject to change without notice. Caution, 1.To protect each Fan motors and Compressors from abnormal current,these Over current relay[...]

  • Page 41

    30 CZ 30 CZ 52C 30 CZ C FZ4 FZ3 52 F1 MF1 21 S4 52 F2 52 F4 52 F3 FZ2 FZ1 X1 X2 CZ HZ Surge absorber circuit board DSA Thermistor(room temp) TH5 Remote controller R/C FZ2~4 Auxiliary relay(fan O/D) 52F2~4 Contactor(fan O/D) 4-Way valve Thermistor(pipe) Indoor board (compressor) Over current relay FZ1 Auxiliary relay(check) Auxiliary relay(heater) A[...]

  • Page 42

    - 41 - ELECTRICAL OPERA TION FLO W CHAR TS START POWER ON CH ON CZ ON TM ON 52C ON MC OPERATE MF2 OPERATE CH OFF 30CZ OFF RL ON CH ON 52C OFF MC STOP MF2 STOP SERVICE CALL 23WA ON? PASS THE 3 MIN.? SAFETY DEVICE OFF? YES NO YES NO YES YES GL ON 30CZ ON (SELF HOLD) SW2 ON? FZ0,1 ON (SELF HOLD) YES 52F ON MF1 OPERATE NO NO PR-5, 8, 10YC[...]

  • Page 43

    - 42 - START POWER ON CH ON 52C ON MC OPERATE MF2 OPERATE CZ ON TM ON 52C ON MC OPERATE MF2 OPERATE CH OFF 30CZ OFF RL ON CH ON 52C OFF MC STOP MF2 STOP SERVICE CALL HZ ON 21S4 ON CZ ON TM ON CH OFF 26D1, 2 ON X1 ON X2 ON (SELF HOLD) 21S4 OFF MF2 STOP 26D1, 2 OFF 21S4 ON MF2 OPERATE X1, 2 OFF SW1 COOL? 23WA ON? PASS THE 3 MIN.? SAFETY DEVICE OFF? C[...]

  • Page 44

    - 43 - START POWER ON FZ0, FZ1 ON (SELF HOLD) CH1, 2 ON CZ1 ON TM1 ON 52C1 ON MC1 OPERATE MF2 OPERATE CH1 OFF CZ2 ON TM2 ON CH2 OFF 30CZ1 OFF RL1 ON CH1 ON 52C2 ON MC2 OPERATE MF3 OPERATE 52C1 OFF MC1 STOP MF2 STOP 52C2 OFF MC2 STOP MF3 STOP SERVICE CALL CH2 ON RL2 ON 30CZ2 OFF 52F ON MF1 OPERATE SW2 ON? 23WA No.1 ON? PASS THE 3 MIN.? 23WA No.2 ON?[...]

  • Page 45

    - 44 - START POWER ON FZ0, FZ1 ON (SELF HOLD) CH1, 2 ON 52C2 ON MC2 OPERATE MF3 OPERATE CZ1 ON TM1 ON 52C1 ON MC1 OPERATE MF2 OPERATE CH1 OFF CZ2 ON TM2 ON CH2 OFF 30CZ1 OFF RL1 ON CH1 ON 52C2 ON MC2 OPERATE MF3 OPERATE 52C1 OFF MC1 STOP MF2 STOP 52C2 OFF MC2 STOP MF3 STOP SERVICE CALL CH2 ON RL2 ON 30CZ2 OFF HZ ON 21S41, 2 ON CZ1 ON TM1 ON TM2 ON [...]

  • Page 46

    - 45 - REFRIGERANT SCHEMA TICS Dryer Strainer Check joint ø19.05 Capillary Tube Check joint ø12.7 ø22.2 ø12.7 Check joint Check joint Pressure gauge High pressure switch Compressor Condenser Evaporator ø12.7 ø19.05 : OPTION PR-5YC Dryer Strainer Check joint ø19.05 Capillary Tube Check joint ø12.7 ø22.2 ø12.7 Check joint Check joint Pressu[...]

  • Page 47

    - 46 - Dryer Strainer Strainer Check joint ø19.05 4-Way valve Capillary Tube Check joint Check valve ø12.7 ø22.2 ø12.7 Capillary Tube Check joint Check joint Pressure gauge High pressure switch Compressor Condenser Evaporator ø12.7 ø19.05 : OPTION PRH-5Y A Dryer Strainer Strainer 8, 15YA: ø22.0 10, 20YA: ø25.4 4-Way valve Capillary Tube Che[...]

  • Page 48

    - 47 - Dryer Strainer Strainer Check joint ø19.05 4-Way valve Capillary Tube Check joint Check valve ø12.7 ø22.2 ø12.7 Capillary Tube Check joint Check joint Pressure gauge High pressure switch Compressor Condenser Evaporator ø12.7 ø19.05 : OPTION Accumulator PRH-5Y A-L Dryer Strainer Strainer 8,15YA-L: ø22.0 10,20YA-L: ø25.4 4-Way valve Ca[...]

  • Page 49

    - 48 - A CCESSOR Y A V AILABILITY SAFETY & CONTR OL DEVICES ITEM N O . COMPRESSOR OVER CURRENT RELAY 51C1,2 27 .5A 31. 0A COMPRESSOR INTERNAL THERMOSTAT - 12 0 ˚C OFF 130 ˚C OFF HIGH PRESSURE SWITCH 6 3H 1,2 2. 94 MPa OFF FREEZE PROTECTOR 26L1,2 -2 ˚C IN FROST PROTECTOR (ONLY PRH-YA,PRH-YA-L) 26D1,2,3,4 -12 ˚C IN, 6 ˚C OUT INDOOR FAN MOTOR[...]

  • Page 50

    - 49 - PHYSICAL D A T A [PRODUCT] ROOFTOP AIR-COOLED HEATPUMP PACKAGED AIR CONDITIONERS Product type PR,PRH,PRH-L SERIES Product number : Cooling type PR-5YC PR-8YC PR-10YC PR-15YC PR-20YC Product number : Heat pump PRH-5YA PRH-8YA PRH-10YA PRH-15YA PRH-20YA Product number : Heat pump PRH-5YA-L PRH-8YA-L PRH-10YA-L PRH-15YA-L PRH-20YA-L Capacity kw[...]

  • Page 51

    - 50 - [PRODUCT] ROOFTOP PACKAGE AIR COOLED HEATPUMP AND COOLING ONLY UNITS Product type PRH SERIES Product number : Heat pump PRH-5YA PRH-8YA PRH-10YA PRH-15YA PRH-20YA [INDOOR AIR CIRCUIT] Number of blowers 12222 Diameter of blowers mm 253 393 Width of blowers mm 182 282 Blower drive Belt drive Fan motor output kW 0.75 1.1 1.5 2.2 3.0 Normal fan [...]

  • Page 52

    - 51 - INST ALLA TION 1.Clearances 300mm(min. clearance) Condenser outlet 1,500mm(min. clearance) 1,000mm(min. clearance) Evaporator coil service 1,000mm(min. clearance) Evaporator coil service 300mm(min. clearance) Condenser inlet Condenser inlet Condenser inlet 300mm(min. clearance) 700mm(min. clearance) Electrical control circuit and compressor [...]

  • Page 53

    - 52 - 3.Duct W ork (1) All series units are equipped with horizontal supply and return air openings. Duct connection to the unit should be made with duct flanges and secured directly to the air openings with flexible duct connectors to avoid normal noise transmission. (2) For vertical air supply, a field supply plenum should be used. The figure be[...]

  • Page 54

    - 53 - TN-NET SYSTEM (For European models onl y) 6.Final Chec ks After having installed the unit, check that: (1) The unit is fixed securely. (2) The unit is installed properly. (3) The drain pipe is provided with a drain trap. (4) The electrical wiring has been connected correctly and the terminal screws have been properly tightened. (5) The duct [...]

  • Page 55

    - 54 - INSTR UCTIONS FOR USE 1.CHECK POINTS FOR OPERA TION Check the f ollowing points bef ore y ou operate y our air conditioner . (1) Check that there is nothing blocking the flow of air from the air outlet into the air inlet. (2) Make sure the air conditioner is properly grounded by checking the ground terminal . Obstacle blocking air inlet Ceil[...]

  • Page 56

    - 55 - 2.CA UTION FOR USE Keep the f ollowing points in mind to safeguar d against failures and breakdo wns. (1) This air conditioner does not restart within 3min. after shut down. (These models have a crankcase heater in the compressor. If the air conditioner is shut down for a short time, please do not turn the power switch to OFF, but turn the o[...]

  • Page 57

    - 56 - 4. PREP ARING FOR OPERA TION AFTER PR OLONGED SHUTDO WN When the usage season starts, proceed with the following before starting operation: (1)Clean the air filter. (2)Do not use the unit immediately. Turn the main power switch on for a period of 3 hours before restarting cooling / heating operation. This allows the compressors to come up to[...]

  • Page 58

    - 57 - SPECIFICA TION GUIDELINES Please supply and install a one piece, air to air reverse cycle air conditioning system. The system shall be completely assembled, tested and have a complete refrigeration charge ready for installation and operation from the factory. The system shall operate at outdoor ambient temperatures as high as 46˚C. The syst[...]

  • Page 59

    - 58 - MEMO[...]

  • Page 60

    HEAD OFFICE DENKI BLDG., MARUNOUCHI,TOKYO 100,TELEX J24532 CABLE MELCO TOKYO MITSUBISHI ELECTRIC CORPORATION Issuued in January. 1999 MEE98K036 Printed in Japan. New publication effective Jan. 1999. Specifications subject to change without notice. D A T A BOOK PR,PRH[...]