Repairing Cooling Valves - Conair Thermolator TW-1 User Manual

Every Thermolator has a solenoid valve assembly that con-
trols the cooling water out flow. Closed circuit (CC) units also
have a vent valve assembly. Solenoid valves also are found on
the optional purge valve.
WARNING:
hot surface hazards
Before attempting maintenance of any kind
on the Thermolator, you must stop the unit;
disconnect and lockout the main power supply;
and allow the unit to cool to 100°F (38°C)
1
Shut off the cooling water infeed.
2
Drain the unit of
all
water through the relief
valve port in the rear of
the unit. Use a 1/4 inch
allen key.
3
Remove the cooling
water out feed. For
closed and isolated cir-
cuit models, also
remove the cooling
water in feed.
4
Disconnect and lock
out main power.
5
Remove the top and
side panels of the
Thermolator. Lift the top
panel straight up, then lift
the side panels up.
6
Remove the cooling
valve from the cooling
water out line.
7
Disassemble the cooling valve.
See Repairing Solenoid Valves and Repairing Motorized
Valves, Section 6.
8
Inspect and clean or repair the valve body
assembly. Remove foreign particles and replace damaged
parts as necessary.
UGH025-0504
Electrical shock and
Cooling
water out
Cooling
water in
DIRECT INJECTION
Thermolator TW Series
Cooling water out
Cooling water in
CLOSED CIRCUIT
ISOLATED CIRCUIT
T
ROUBLESHOOTING
R
EPAIRING
C
OOLING
V
ALVES
6-25