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TE-WILBUR OPERATIONS MANUAL REV 002.15 06/11/2015
Tisch Environmental 1-TSP-AND-PM10 sales@tisch-env.com www.tisch-env.com Page 154 of 183
14.9 Solenoid
The solenoid is a TE-Wilbur part number TE-W-212.
Condition
Possible Cause
Possible Remedy
Solenoid does not
activate during leak
check
Ensure pressure is
working properly
Solenoid failed
PLC failed
The solenoid will turn on (Close) when the
system pressure exceeds 50” H2O during a leak
check.
Take a jumper wire and place one end on
24VDC and the other end on terminal 3. The
solenoid should come on and you should hear a
‘click’ from the valve closing.
If the solenoid does not come on check the
wiring. Replace solenoid.
If solenoid does come on when placing the
jumper on terminal 3, check the wiring to the
PLC card (outputs right side). When solenoid
is supposed to be ON from a leak check being
performed and the pressure being greater than
50” the LED for output 4 should be on.
Replace PLC card.
14.10 Exhaust Fan
The exhaust fan is a TE-Wilbur part number TE-W-203
Condition
Possible Cause
Possible Remedy
Exhaust fan does not
come on when
temperature variance is
3 Deg C
Temperature sensor
failed
Fan failed
The fan will come on and run for 30 seconds
when the temperature variance between
ambient and the filter temperature exceeds 3
Deg C. Calibrate the ambient temperature to a
false value to achieve a temperature variance of
more than 3 degrees to check fan operation.
Take a jumper wire and place one end on
24VDC and the other end on terminal 2. The
fan should come on. Check for 27VDC on the
connector to the fan.
If the fan does not come on check the wiring.
Replace fan.
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