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2. Sprinkler System Component Replacement
a. Resistive Temperature Device (RTD) Replacement
The sprinkler digital temperature controller is a programmable microprocessor (computer). It is used to
monitor temperature via a Resistive Temperature Device (RTD).
NOTE: For RTD (Resistive Temperature Device) probe location, refer to the top illustration on page 80.
1) Discontinue water supply to the dryers' sprinkler system.
2) Discontinue electrical service to the dryer.
3) Remove probe(s) junction box cover.
4) Identify wire(s) from defective RTD probe(s).
5) Mark the position of the wire(s) in the terminal block that will be removed for proper reinstallation.
6) Remove wire(s) from terminal block.
7) Loosen compression fitting(s) and remove defective probe(s).
8) To install new probe(s), reverse Step #7 thru Step #3.
9) Reestablish electrical service to the dryer.
10) Reestablish water supply to the dryer.
b. Sprinkler Valve Replacement
1) Turn the water supply to the dryer off.
2) Discontinue electric service to the dryer.
3) Disconnect compressed air supply from the dryer.
4) Loosen and remove the hose clamp.
5) Remove any residual water to the valve.
6) Remove 1/4" air tubing going to the valve.
7) Remove the two (2) U-bolts holding the sprinkler valve assembly.
8) Unscrew the sprinkler valve from the tubing.
9) To install new sprinkler valve, reverse Step #8 thru Step #3.
9) Reestablish electrical service to the dryer.
10) Reestablish water supply to the dryer.
MAN3190
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