Traulsen TBC13, Service Manual

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VIII. SERVICE PROCEDURES (cont
’
d)
VIII. d - COMPRESSOR (cont
’
d):
2. Disconnect lead wires and conduit at the
compressor junction box.
3. Disconnect suction and discharge lines from the
compressor.
4. Remove the compressor.
5. Install new compressor and connect wire leads
and conduit at compressor junction box.
6. Install new filter/drier.
7. Evacuate system.
8. Charge system and put unit into operation.
VIII. e - CONDENSER FAN ASSEMBLY:
WARNING: DISCONNECT THE ELECTRICAL POWER
TO THE MACHINE AND FOLLOW LOCKOUT/TAGOUT
PROCEDURES.
NOTE: This procedure applies to all blast chill models.
1. Remove the fan guard from the top of the
condenser assembly.
2. Remove the screws from the mounting clamps
on the front and rear of the motor.
3. Remove the motor bracket and fan assembly
from the mounting bracket.
Proceed to perform either step 4a or 4b.
4.a To replace the fan blade only, loosen the set
screw that secures the fan blade to the motor
shaft and remove the fan blade from the motor
Install the new fan blade with the set screws
between the motor and the blades.
4.b To replace the fan motor, disconnect the lead
wires from the motor.
5. Reverse the procedure to install.
VIII. g - CONDENSER COIL:
WARNING: DISCONNECT THE ELECTRICAL POWER
TO THE MACHINE AND FOLLOW LOCKOUT/TAGOUT
PROCEDURES.
WARNING: THIS PROCEDURE REQUIRES THE USE
OF REFRIGERANTS. BE CERTAIN THE WORK AREA IS
WELL VENTILATED. SAFETY GOGGLES AND GLOVES
SHALL BE WORN SINCE REFRIGERANTS MAY CAUSE
INJURY TO THE SKIN.
NOTE: This procedure applies to all blast chill models.
1. Evacuate the refrigeration system.
NOTE: The use of reclaiming equipment is
mandatory.
VIII. f - CONDENSER COIL (cont ’ d):
2. Remove fan guard and fan shroud from
condensing coil.
3. Disconnect inlet and outlet lines at the soldered
connections nearest the condenser coil.
4. Remove coil from mounting plate.
5. Reverse procesure to install coil, then proceed
to the next step.
NOTE: It is recommended that the filter/drier be
changed when this part is replaced.
6. Evacuate the refrigeration system.
NOTE: The use of reclaiming equipment is
mandatory.
7. Charge system and put unit into operation.
VIII. g - PRESSURE CONTROL:
WARNING: DISCONNECT THE ELECTRICAL POWER
TO THE MACHINE AND FOLLOW LOCKOUT/TAGOUT
PROCEDURES.
WARNING: THIS PROCEDURE REQUIRES THE USE
OF REFRIGERANTS. BE CERTAIN THE WORK AREA IS
WELL VENTILATED. SAFETY GOGGLES AND GLOVES
SHALL BE WORN SINCE REFRIGERANTS MAY CAUSE
INJURY TO THE SKIN.
1. Pump-down refrigeration system. Warning, after
pump-down, refrigerant lines will contain
pressure.
2. Front seat the suction service valve.
3. Disconnect wire leads to pressure switch.
4. Disconnect capillary tube from compressor
fitting.
5. Remove pressure control from mounting bracket.
6. Replace pressure switch and connect capillary
tube to compressor fitting.
7. Put unit back into operation.