Electrical Data - Trane CXPA Series Installation Operation & Maintenance

Fig.09 - Crankcase Heater
Recommended for position
fixing
Tab. 08 - Crackcase Heaters
Power Voltage Trane Code
W V X1314
240 X13140710-11
70
480 X13140710-12
240 X13140712-05
100
480 X13140712-08
230 X13140712-11
160
460 X13140712-14
SSC-SVN001H-EN

Electrical Data

Crankcase Heater
Trane recommends the use of
crankcase when the load of the sys-
tem refrigerant load exceeds the
refrigerant compressor limit (RCL).
The needs of crankcase heater are
directly related to the possibility of
liquid migration to the compressor,
and consequently causing poor lu-
brication of it. Migration can occur
during long periods of compressor
shutdown (over 8 hours). The crank-
case heater is recommended to eli-
minate the liquid migration when
these downtime long periods.The
crankcase heater must be installed
on the compressor housing and be-
low the removal oil point. The crank-
case heater must remain energized
while the compressor is off.
This will prevent the dilution of oil
and the bearings overload in the
initial compressor starts. When the
compressor is off, the crankcase
Crankcase Heater
Mnemonico Code
Quantity
HTR00199B 1
HTR00200B 1
HTR12361 1
HTR00002B 1
HTR12523 2
2
HTR12525
!
The strength of crankcase must
be energized at least 12 hours be-
fore the startup of the compressor
(with the service valves open) and
should be maintained until the
compressor energized startup.
temperature should be kept at least
10°C above the refrigerant tempera-
ture in the suction side (low pressu-
re side). This requirement ensures
that the refrigerant will not be retai-
ned in the compressor crankcase.
Tests can be done to ensure that
the appropriate temperature of the
oil is maintained below the ambient
conditions (temperature and wind).
Therefore, for a temperature below
-5°C and an over 5m/s wind speed,
it is recommended that the resis-
tors be thermally isolated to limit the
energy loss to the environment.
Diameter (mm)
min. máx. Conexion Cable
185 210 520
185 210 520
230 290 460
230 290 460
300 375 560
300
375 560
Attention:
Length (mm)
Resistance Fixing Chape
460 60
460 60
740 60
740 60
890 60
890 60
15