Testing The Installation Tw Control - Conair Thermolator TW-1 User Manual

WARNING: Only qualified personnel
should perform this procedure.
Parts of this test requires opening the unit while it
is energized. Only qualified personnel who have
been trained in the use of electrical testing devices
and in avoiding the safety hazards involved in
safely troubleshooting this type of equipment
should perform this test procedure.
1
Turn on the cooling water supply and check
for leaks. If any leaks appear, stop the test and fix the
problem before continuing. The cooling water must be at
least 25 PSI or the unit will not function.
2
Apply power to the unit.
3
Check the rotation of the pump.
Remove the top access panel and the pump motor drip
cover. Press and hold the START button until the pump
starts. Quickly press Pump STOP button; verify that the
pump rotation matches the direction indicated on the rota-
tion sticker on top of the pump.
4
Replace the drip cover and top access panel.
5
Press and hold the START button until the
vent cycle starts. If everything is working correctly:
u The START button lights.
u The unit initiates a venting sequence. Cooling and
venting valves are active for the first half of the
sequence. The pump is active for the final half of the
sequence. Indicator lights energize when the device is
active.
u Normal operation begins. The heater turns on if the
actual temperature is below setpoint. The cooling valve
opens if the actual temperature is above setpoint.
The test is over. If testing proceeded normally follow the
remaining Installation steps for the TW Control. Otherwise
refer to the Troubleshooting section.
UGH025-0504 Thermolator TW Series
T
ESTING THE
I
NSTALLATION
TW C
ONTROL
NOTE: If the rotation is incor-
rect, stop the test and discon-
nect power to the unit. Open
the electrical enclosure and
switch any two of the three
power source wires on the
terminal block. Return to
Step 2 and check rotation
again.
I
NSTALLATION
3-7