Carrier 38QE - Manual (Page 11)

Table 4—Electrical Data
VOLT/PHASE
OPERATING
VOLT AG £♦ COMPRESSOR FAN
MAX FUSE or
HACRTYPE
CIRCUIT BKR
AMPS INDOOR COMPRESSOR SECTION MIN MAX LRA RLA FLA MCA
38QE024300 208/230/1 187 254 35.0 20.3 40 25.9
38QE036300 208/230/1 187 254 35.0 25.3 50 32.4
OUTDOOR FAN-COIL SECTION
38QE924300
208/230/1 187 254 .5
38QE936300 208/230/1 187 254 .7
WATER HEATER CONTROL BOX
38QE9XX300
208/230/1 187 254 20 20
FLA —Full Load Amps
HACR—Heating, Air Conditioning and Refrigeration
MCA —Minimum Circuit Amps
RLA —Rated Load Amps
LRA —Locked Rotor Amps ♦Permissible limits of the voltage range at which the unit will operate
satisfactorily.
♦♦Outdoor Coil Wiring—For 25-ft wire run or less, use minimum 14 AWG
wire size. For longer wire run, use same size wire as supply to compres­
sor section.
230 V operation. The primary connection on control trans­
formers must be rewired to the 208 volt wires for line volt­
age between 187 emd 218 Volts. Refer to the 38QE Compres­
sor Section label wiring diagram for location and wire identi­
fication to rewire the two (2) transformers in the main con­
trol box. Refer to the 40QE label wiring diagram for loca­
tion and wire identification to rewire the transformer in the
accessory heater or cooling-only control package. Cap each
unused transformer wire with a wire nut and tape or, if the
unused lead has a push-on terminal, tape and protect any
exposed metal on the terminal.
Compressor Section
InstaR branch circuit disconnect of adequate size to handle
compressor section. Route line power leads from disconnect
through hole provided in compressor section top rear panel
and into the main control box. Connect ground wire to
ground lug. Connect main power to the terminal block
located within the main control box. The compressor section
wire label illustrates the terminal block location.
Rear panel wiring holes are shown in Fig. 4. See Fig. 12 for
connection schematic.
Outdoor Fan Coil Section
The outdoor fan coil section receives power from the com­
pressor section. Provide a separate disconnect switch for
the outdoor fan cofi. section. Fig. 12 illustrates the connec­
tions from the compressor section to the disconnect switch
and then to the outdoor fan coil section.
Connect ground wire to ground lug. Route power wires for
the outdoor fan coil section through the 7/8-in. hole provided
in the top rear panel of the compressor section. Splice wires
to pigtails with wire nuts.
Connect the power wires to the outdoor disconnect switch.
From the disconnect switch, extend wires through hole pro­
vided in outdoor fan coil section and into line voltage sec­
tion of control box. Splice leads to black and yeUow pigtails
with wire nuts. Connect ground wire to ground lug inside
control box.
Domestic Water Heater Control Box (Electric Heater Only)
Install branch circuit disconnect of adequate size to handle
domestic water heater. Fig. 13 illustrates the required wir­
ing connection between the branch disconnect and the 38QE
38QE Compressor
Section Control Box
Splice Connection
Field Wiring
Factory Wiring
Fig. 12—Compressor Section and Outdoor
Section Power Connections
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