Carrier 38AE - Manual (Page 5)

(3 Ph/60 Hz)
Table 4 - Electrical Data
UNIT
38AE
UNIT COMPR FAN MOTORS (Single Phase)
Model
Volts
MCA ICF
MOCP
(Fuse)
RLA LRA
Total
Fans
FLA (ea)
Fan No. kW
Nameplate
Supplied*
Min Max 1 2
501 208-230 187 253 62.5 178 100 43 6 170 4.3 37
012
201 380 342 418 35.0 101 50 24 0 93 4.3 37
601 460 414 528 29 1 81 40 20.0 77 23 1 9
101 575 518 660 22.8 67 35 157 62 1.8 1.8
501 208-230 187 253 69.3 199 100 49 3 191 43 37
201 380 342 418 38 0 112 60 26 5 104 43 37
601 460 414 528 31 7 84 50 22 1 80 23 1 9
101 575 518 660 25.6 73 40 17.9 69 1.8 1.8
501 208-230 187 253 87 5 274 125 63 6 266 43 37
201 380 342 418 49 3 153 80 36.0 145 43 37
601 460 414 528 40 7 124 60 29 3 120 2.3 1 9
101 575 518 660 33 0 100 50 23 8 96 1.8 1 8
(3 Ph/50 Hz)
UNIT
38AE
UNIT COMPR
FAN MOTORS
230 V (Single Phase)
Model
Volts
MCA ICF
MOCP
(Fuse)
RLA LRA
Total
Fans
FLA (ea)
Fan No.
Name-
plate
Supplied*
Min Max 1 2
803 230 198 264 47 5 134 75 32 9 128 29 35
903 400 342 457 31 4 80 50 20.0 74 2.9 3.5
803 230 198 264 51 0 149 75 35 7 143 29 3.5
903 400 342 457 34 0 89 50 22 1 83 29 3.5
803 230 198 264 66 9 206 100 47 9 200 2.9 35
903 400 342 457 43 0 121 60 29 3 115 29 35
FLA — Full Load Amps (Fan Motors)
ICF — Maximum Instantaneous Current Flow during start-up (LRA of compressor plus total FLA of fan motors)
kW — Total Fan Motor Input (kilowatts)
LRA — Looked Rotor Amps
MCA — Minimum Circuit Amps per NEC (U S.A ), Section 430-24
MOCP — Maximum Overcurrent Protection (amps)
RLA — Rated Load Amps (Compressor)
•Units are suitable for use on electrical systems where voltage supplied to the unit terminals is not below or above
the listed limits
START-UP
Evacuate and Dehydrate the entire refrigerant sys­
tem by either of the methods described in Carrier Standard
Service Techniques Manual, Chapter 1, Section 1-7.
Leak Test the entire refrigerant system by the pressure
method described in Carrier Standard Service Techniques
Manual, Chapter 1, Section 1-6. Use R-22 at approxi­
mately 25 psig (172.4 kPa) backed up with an inert gas to
a total pressme not to exceed 245 psig (1689 kPa).
Before starting the unit, the crankcase heaters must be
on for 24 hours to be sure all the refrigerant is out of the
oil.
To energize the crankcase heaters, proceed as follows.
1. Set the space thermostat above ambient so there will be
no demand for cooling.
2. Close the field disconnect.
3. Turn the fan circuit breaker on. Leave the compressor
circuit breakers off. The crankcase heaters are now
energized.
Before Starting Unit check the following:
1. Compressor oil level must be at least within sight in the
compressor sight glass. Add oil if necessary (see Table
1 and Oil Charge section).
2. Compressor holddown bolts must be snug, but not tight.
Refer to Compressor Mounting section and tag on com­
pressor foot.
3. All internal wiring connections must be tight; all barri­
ers and covers must be in place.
4. Electrical power source must agree with unit nameplate
rating.
5. All service valves must be open.
6. Crankcase heater must be firmly locked into the com­
pressor crankcase.