Installation
8 PART-SVN237B-EN
Example: C H H S R B 1 A 1 X X
Phase motion motors (Early GP4 classic) (Common Mode Choke
(cores) will need to be ordered)
A1 (future use)
B1 145-010
Motor designations from Phase part
numbe
rs -
C1 1
70-011
First 3 digits correspond to motor
length
(A - F in Trane model number)
C2 170-095
Last 3 digits correspond to winding
charac
teristics. (Numeric digit in Trane
model number)
D1 (future use)
E1 165-010
E2 165-014
E3 165-016
F1 190-011
F2 190-014
GP4 Classic Regal Motors (Regal part
number shown) (Common
Mode Choke (cores) will not need to be ordered):
BA 2520869-003 100T SL 460V
BB 2520869-004 100T SL 380V
CA 2520869-001 100T HL 460V
CB 2520869-002 100T HL 380V
EA 2520867-005 125T SL 460V
EB 2520867-006 125T/150T SL 380V/460V
EC 2520867-007 150T SL 380V
FA 2520867-001 150T HL 460V
FB 2520867-002 150T HL 380V
FC 2520867-003 165T HL 460V
FD 2520867-004 165T HL 380V
Table 6. Common mode chokes
Description Quantity Mnemonic PN
Common Mode
Core Assembly
One (1) per
circuit
COR00252 50711456
Individual
Condu
ctor Core
Five (5) per
conductor
COR00253 X13641390010
Note: These parts must be sourced locally.
6. Inline connectors
With removal of the output inductor, the power
co
nd
uctors will be need to be spliced together. Polaris
Electrical Connectors are recommended (Catalog No.: IT-
250). Six (6) pieces are needed. There are two conductors
per phase.
Figure 2. Insulated in-line connectors
7. Piping and fitting changes may be required. Source
lo
cally.
8. Insulation
All units require field installed ins
u
lation. Install insulation
before adding refrigerant for proper adhesion.
Heater Information
There are two heaters per compressor:
1. One cartridge/rod style that is the same part number
for both R and S frame compressors. This part number
changed between GP4 clas
sic and VVi. Heaters need to
be ordered as separate service parts for the retrofit to
work. See Table 3, p. 7 for the correct part numbers to
order.
2. The band style has not change between GP4 Classic
an
d VVi. The existing band style heaters on the RTAE
compressor can be reused.
Compressor Heaters
The compressor must be heated any time it is not running
to prevent refrigerant from condensing in the compressor.
The heaters are sized to maintain a minimum of 18°F or
20°F rise above the ambient temperature.
Two heaters are required: a cartri
dg
e type in the suction
end of the rotor housing and a band type on the muffler.
See Table 3, p. 7 for heater details.
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