Carrier 38APD115, Manual

Page: 146 / 242

146
25. If the compressor is a digital compressor, connect the dig-
ital unloader solenoid as shown in Fig. 169.
26. Recharge the compressors with new oil as described in
the section Adding Oil on page 147.
27. Charge the circuit as described in the Start-Up section on
page 41.
28. Check the operation of the compressor.
CRANKCASE HEATER MOUNTING — All 38AP units
have crankcase heaters as standard equipment. It is important
that the crankcase heater be tight to the compressor shell and in
proper location. See Table 66 and Fig. 170-174 for proper loca-
tion. Crankcase heaters should be tightened to 20 to 25 in.-lb
(2.26 to 2.82 N-m).
Table 66 — Crankcase Heater Location
LEGEND
CRANKCASE HEATER WIRING — Crankcase heaters are
specific to unit voltage. Each crankcase heater has a color-cod-
ed tag to indicate voltage. Table 67 identifies tag color code for
each voltage. See Fig. 167 and 168 for compressor junction
box connection information
Table 67 — Crankcase Heater Color-Coded Tags
CAUTION
Do not start the compressor while the system is in a deep
vacuum. Compressor failure may occur.
UNIT
SERIAL
NUMBER
CRANKCASE HEATER LOCATION
CIRCUIT A
COMPRESSOR(S)
CIRCUIT B
COMPRESSOR(S)
38APD025 — Fig. 170 Fig. 170
38APD027 — Fig. 171 Fig. 171
38APD030 — Fig. 171 Fig. 171
38APD040 — Fig. 170 Fig. 170
38APD050 — Fig. 170 Fig. 171
38APD060 — Fig. 171 Fig. 171
38APD070 — Fig. 171 Fig. 170
38APD080 — Fig. 171 Fig. 171
38APD090 — Fig. 171 Fig. 171
38APD100 — Fig. 171 Fig. 171
38APD115
PSN 1714Q Fig. 171 Fig. 172
SSN 1714Q Fig. 171 Fig. 173
38APD115
PSN 1714Q Fig. 171 Fig. 174
SSN 1714Q Fig. 171 Fig. 173
38APS025 — Fig. 170 —
38APS027 — Fig. 171 —
38APS030 — Fig. 171 —
38APS040 — Fig. 171 —
38APS050 — Fig. 171 —
38APS065
PSN 1714Q — Fig. 172
SSN 1714Q — Fig. 173
PSN — Prior Serial Number
SSN — Starting Serial Number
0.55-0.95 in.
[14-24 mm]
Fig. 170 — Copeland ZP/ZPD103, 120,137
Crankcase Heater Location
UNIT POWER SUPPLY TAG COLOR
208/230-3-60
380-3-60
380/415-3-50
Yellow
460-3-60 Red
575-3-60 Blue
0.51-0.71 in.
[13-18 mm]
Fig. 171 — Copeland ZP/ZPD154,182 Crankcase
Heater Location
1.25-1.77 in.
[32-45 mm]
a38-7320
Fig. 172 — Copeland ZP235 Crankcase Heater
Location
2.48-2.75 in.
[63-70 mm]
a38-7321
Fig. 173 — Copeland ZP236,296 Crankcase
Heater Location
1.57-1.97 in.
[40-50 mm]
a38-7322
Fig. 174 — Copeland ZP295 Crankcase Heater
Location