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18

ELECTRICAL DATA

UNIT

NOMINAL

VOLTAGE RANGE

COMPRESSOR

OFM

IFM

ELECTRIC HEAT

POWER SUPPLY

NOMINAL

kW

FLA

MCA

MOCP

MIN

MAX

RLA

LRA

FLA

FLA

50GL-A24-E-90

400---3---50

380

420

4.5

32.0

0.8

1.1

---

---

7.5

15

6.5

9.4

13.1

15

8.7

12.6

12.1

20

50GL-A30-E-90

400---3---50

380

420

5.2

35.0

0.8

1.7

---

---

9.0

15

6.5

9.4

13.9

15

8.7

12.6

17.9

20

13.0

18.8

25.6

30

50GL-A36-E-90

400---3---50

380

420

6.5

46.0

0.8

2.0

---

---

10.9

15

6.5

9.4

14.3

15

8.7

12.6

18.3

20

13.0

18.8

26.0

30

50GL-A48-E-90

400---3---50

380

420

6.7

50.0

1.3

3.9

---

---

13.6

20

6.5

9.4

16.6

20

8.7

12.6

20.6

25

13.0

18.8

28.4

30

17.4

25.1

36.3

40

LEGEND

FLA --- Full Load Amps

LRA --- Locked Rotor Amps

MCA --- Minimum Circuit Amps

MOCP --- Maximum Overcurrent Protection

RLA --- Rated Load Amps

NOTES:

1. In compliance with NEC (National Electrical Code) requirements for multimotor and combination load equipment (refer to NEC Articles 430 and 440), the

overcurrent protective device for the unit shall be Power Supply fuse. The CGA (Canadian Gas Association) units may be fuse or circuit breaker.

2. Minimum wire size is based on 60 C copper wire. If other than 60 C wire is used, or if length exceeds wire length in table, determine size from NEC.
1. Unbalanced 3---Phase Supply Voltage

Never operate a motor where a phase imbalance in supply voltage is greater than 2%. Use the following formula to determine the percentage of voltage

imbalance.

% Voltage imbalance

= 100 x

max voltage deviation from average voltage

average voltage

IMPORTANT

: If the supply voltage phase imbalance is more

than 2%, contact your local electric utility company immediately.

50GL

--

A

Summary of Contents for 50GL-A

Page 1: ...e longer life and dependable operation Each compressor also has vibration isolation to provide quieter operation All compressors have internal high pressure and overcurrent protection ECM Motor is sta...

Page 2: ...IPING AND WIRING 17 APPLICATION DATA 17 ELECTRICAL DATA 18 TYPICAL WIRING SCHEMATICS 19 CONTROLS 20 GUIDE SPECIFICATIONS 21 22 MODEL NUMBER NOMENCLATURE 50GL E Type of Unit 50GL Single Packaged Air Co...

Page 3: ...culating fan heat Ratings are based on Cooling Standard 80 F 26 7_C db 67 F wb 19 4_C indoor entering air temperature and 95 F db 35_C outdoor entering air temperature 2 Before purchasing this applian...

Page 4: ...BLOWER Nominal Cooling Airflow Cfm Nominal Cooling Airflow L s Wheel Size in Wheel Size cm Motor HP Motor kW 800 1000 1200 1600 800 378 10x10 25 4x25 4 1 4 186 1000 472 10x10 25 4x25 4 1 2 373 1200 56...

Page 5: ...justable damper blade for up to 25 outdoor air X Square to Round Duct Transition Kit Square to Round Duct Transition Kit enable 24 48 size units to be fitted to 14 in 356 mm round ductwork X Time Guar...

Page 6: ...6 UNIT DIMENSIONS 50GL A24 36 A09465 50GL A...

Page 7: ...7 UNIT DIMENSIONS 50GL A48 A09466 50GL A...

Page 8: ...mm B small common curb IN mm B large curb IN mm C IN mm D IN mm E IN mm F IN mm G IN mm H IN mm Small or Large CPRFCURB010A00 11 279 10 254 14 356 16 406 47 8 1214 32 4 822 2 7 69 30 6 778 46 1 1170...

Page 9: ...total capacity of 12 5 kW and a SHC of 9 1 kW Calculate SHC correction if required using Note 3 of Net Cooling Capacities Table 3 Select electric heat The required heating capacity is 6 4 kW 22 000 Bt...

Page 10: ...2 5 1 4 0 6 5 5 4 4 0 kW 2 0 2 1 2 1 2 1 2 2 2 2 2 2 2 3 2 3 35 TC 6 0 6 8 7 5 6 2 6 9 7 6 6 4 6 9 7 6 SHC 5 6 4 7 3 8 5 9 5 0 3 9 6 1 5 2 3 9 kW 2 2 2 3 2 3 2 3 2 4 2 4 2 4 2 5 2 5 41 TC 5 6 6 3 7 1...

Page 11: ...8 7 8 6 4 5 0 8 1 6 7 5 2 kW 2 7 2 7 2 8 2 8 2 8 2 9 2 8 3 0 3 0 35 TC 7 7 8 5 9 3 7 9 8 5 9 4 8 1 8 6 9 4 SHC 7 1 5 9 4 7 7 6 6 2 4 9 7 8 6 6 5 0 kW 3 0 3 0 3 0 3 0 3 1 3 2 3 1 3 2 3 3 41 TC 7 4 8 0...

Page 12: ...1 9 6 8 0 6 2 10 1 8 3 6 3 kW 3 3 3 4 3 4 3 4 3 5 3 5 3 6 3 7 3 7 35 TC 9 6 10 6 11 6 9 8 10 7 11 6 9 9 10 8 11 6 SHC 8 9 7 4 5 9 9 4 7 8 6 1 9 9 8 1 6 1 kW 3 6 3 7 3 7 3 8 3 9 3 9 3 9 4 0 4 0 41 TC...

Page 13: ...16 0 13 7 15 2 16 3 14 1 15 5 16 5 SHC 12 1 10 1 7 9 13 1 10 9 8 3 14 1 11 5 8 6 kW 4 8 4 9 4 9 4 8 4 9 5 0 4 8 4 9 5 0 35 TC 12 5 14 1 15 5 12 9 14 4 15 8 13 4 14 7 16 0 SHC 11 7 9 8 7 7 12 7 10 6 8...

Page 14: ...mulas may be used C ldb C edb SHC kW x 1000 1 23 x L s Leaving wet bulb wet bulb temperature corresponding to enthalpy of air leaving coil h wb h wb h ewb TC kW x 1000 1 20 x L s Where h ewb is enthal...

Page 15: ...ducting NOTES 1 Do not operate the unit at a cooling airflow that is less than 350 cfm for each 12 000 Btuh 165 L s for each 3 5 kW of rated cooling capacity Evaporator coil frosting may occur at airf...

Page 16: ...25 472 519 566 614 661 707 755 802 850 896 944 991 1038 1085 508X508X25 12 4 17 4 19 9 24 9 29 9 32 3 34 8 37 3 508X610x25 22 4 24 9 27 4 32 3 34 8 37 4 39 9 610X762x25 17 4 19 9 22 4 24 9 27 4 29 9 3...

Page 17: ...o convert a unit to downflow discharge Units are equipped with factory sealed covers in the downflow openings Maximum cooling airflow To minimize the possibility of condensate blow off from the evapor...

Page 18: ...ection RLA Rated Load Amps NOTES 1 In compliance with NEC National Electrical Code requirements for multimotor and combination load equipment refer to NEC Articles 430 and 440 the overcurrent protecti...

Page 19: ...19 TYPICAL WIRING SCHEMATIC 400 3 50 A09464 50GL A...

Page 20: ...sition de energizing the compressor contactor and opening the contacts supplying power to compressor OFM After a 90 second delay the IFM shuts off If the thermostat fan selector switch is in the ON po...

Page 21: ...awings 2 Fan wheel shall be made from steel be double inlet type with forward curved blades with corrosion resistant finish Fan wheel shall be dynamically balanced 3 Condenser fan shall be direct driv...

Page 22: ...onsist of damper birdscreen and rainhood which can be preset to admit outdoor air for year round ventilation 8 Square To Round Duct Transitions 24 48 size Shall have the ability to convert the supply...

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