Carrier 38GS - Manual (Page 10)

Table 7 — Compressor Data
COND
UNIT
V/PH
PRODUCTION
COMPR*
OIL
RECHG
(Oz)
38GS014__. 208/1 38GS400804
21
38GS014-.. 230/1 38GS400804
21
38GS018200 208/1 38GC401994
21
38GS0182iO 208/1 MD2023CB 44
38GS018300 230/1 38GC400224
21
38GS0183IO 230/1 MD2023CB 44
38GS024200 208/1 38GL400314 42
38GS0242i0 208/1 MB2723CB 44
38GS024300 230/1 38GL400324 42
38GS024370 230/1 MD2723CB 44
38GS030200 208/1 38GC401984 42
38GS0302I0 208/1 MB3423CB 44
38GS030300 230/1 38GC401404 42
38GS0303i0 230/1 MC3423CB 44
38GS036200 208/1 38GC402004 46
38GS0362fO 208/1 MB4023CB 44
38GS036300 230/1 38GC401564 46
38GS0363i0 230/1 MC4023CB 44
38GS042___ 230/1 38GS400424 46
38GS048___ 230/1 PC5329AD 76
38GS060___ 230/1 PC6728AB 76
38CC030.__ 200/230/3 MF3423BC 44
38CC036___ 200/230/3 MF4023CB 44
38CC036___ 460/3 MH4023CB 44
38CC042___ 200/3 38GR403364 46
38CC042___ 230/3 38GR403364 46
38CC042__. 460/3 38GR403374 46
38CC048___ 200/3 PF5326AD 76
38CC048___ 230/3 PG5326AD 76
38CC048-__ 460/3 PH5326AD 76
38CC060___ 200/3 PF6725AA • 76
38CC060___ 230/3 PG6725AA 76
38CC060___ 400/3 PH6725AA 76
38CE002___ 230/1 MD2023CB 44
38CE003___ 230/1 MD3023CB 44
38CE004___ 230/1 MC3423CB 44
38CE045___ 230/1 PC4629AD 76
38CE005___ 230/1 PC5329AD 76
--------- Tabular data shown applicable to all models except
those shown italicized 000
* Refer to Service Parts Catalog for replacement compressor
model numbers Single-phase units may include compressor
start assist device
PUMPDOWN PROCEDURE
The 38GS,CC,CE units may be pumped down in
order to make repairs on low side of system
without losing complete refrigerant charge.
1. Attach pressure gage to suction service valve
gage port.
2. Frontseat the liquid line valve.
3. Jumper low-pressure switch (if unit is so
equipped).
4. Start unit and run until suction pressure reaches
5 psig (see Caution).
5. Shut unit off and frontseat suction valve.
6. Vent remaining pressure to atmosphere.
REFRIGERANT CHARGING
The 38GS,CC,CE condensing units contain
correct operating charge for complete system when
connected to Carrier approved evaporators that are
the same size as condensing unit, with 25 ft or less
of tubing of recommended size. Charge adjustment
may be required on other systems.
Listed (Table 8) and described below are
recommended methods of checking, adjusting or
recharging Carrier approved systems. When recharg­
ing these systems, evacuate system to 5000 mi­
crons (29.7-in. vacuum), and weigh in charge
shown in Table 5. When system is not evacuated,
subtract the following amount from total charge.
38GS014,018,024; 38CE002 - .11 lb (1.6 oz)
38GS030,036; 38CE003,004; 38CC030,036 - .21
lb (3.2 oz)
3 8 G S 0 4 2 , 0 4 8 , 0 6 0 ; 3 8 C C 0 4 2 , 0 4 8 , 0 6 0 ;
38CE045,005 - .31 lb (4.8 oz)
(Dial-a-charge charging cylinder is an accurate
device used to recharge systems by weight. These
cylinders are available at refrigeration supply
firms.) After weighing in charge, check or adjust
charge using the Chargemaster® charging device,
charging chart or sight glass method as recom­
mended in Table 8. Refer to Carrier Standard
Service Techniques Manual, Chapter 1, for system
evacuation — dehydration instructions.
When 38GS,CC,CE condensing units are con­
nected to other than a Carrier evaporator, evacuate
system and weigh in charge shown in Table 5 or
use sight glass method of recharging (38CC thermal
expansion valve systems only).
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