Testing The Installation Tw-1, Tw-2 Control; Testing The Installation; Controls - Conair Thermolator TW-1 User Manual

T
ESTING THE
I
NSTALLATION
TW-1, TW-2
C
ONTROLS
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.
3-8
I
NSTALLATION
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. The LOW
WATER PRESSURE light will come on when power is
applied. The light goes off when the pressure is adequate.
2
Apply power to the unit.
u Indicator lights on the control panel blink green, then
red, to test operation of the LEDs.
u Setpoint and actual windows display 888 for three sec-
onds, followed by the software version. The windows
then display the factory default setpoint of 100°F and
the actual temperature.
3
Check the rotation of the pump.
Remove the top access panel and the pump motor drip
cover. Press the Run button until the pump starts. Quickly
press Pump Stop button; verify that the pump rotation
matches the direction indicated on the rotation sticker on
top of the pump.
4
Replace the drip cover and top access panel.
5
Press the Run button to start the unit.
If everything is working correctly:
u The Run/Stop light turns green.
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-1, TW-2 Controls.
Otherwise refer to the Troubleshooting section.
Thermolator TW Series UGH025-0504