SSC-SVN001H-EN
15
Fig.09 - Crankcase Heater
Recommended for position
fixing
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
Tab. 08 - Crackcase Heaters
Electrical Data
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.
Attention:
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.
!
Crankcase Heater
Power
Voltage
Trane Code
Mnemonico Code
Quantity
Diameter
(mm)
Length (mm)
W
V
X1314
min.
máx.
Conexion Cable
Resistance
Fixing Chape
70
240
X13140710-11
HTR00199B
1
185
210
520
460
60
480
X13140710-12
HTR00200B
1
185
210
520
460
60
100
240
X13140712-05
HTR12361
1
230
290
460
740
60
480
X13140712-08
HTR00002B
1
230
290
460
740
60
160
230
X13140712-11
HTR12523
2
300
375
560
890
60
460
X13140712-14
HTR12525
2
300
375
560
890
60
Summary of Contents for CXPA 050
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Page 29: ...SSC SVN001H EN 29 Fig 37 Dimensions Condensing Units TRAE 200 1 Circuit TRAE Dimensional Data...
Page 30: ...30 SSC SVN001H EN TRAE Dimensional Data Fig 38 Dimensions Condensing Units TRAE 200 2 Circuits...
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Page 32: ...32 SSC SVN001H EN TRAE Dimensional Data Fig 40 Dimensions Condensing Units TRAE 250 2 Circuits...
