Rinse Solenoid Valve - Cleveland steamcraft 21-CET-8 Service Manual

Rinse solenoid valve

• If the meter reads 0 VAC across the drain solenoid, the fault is not in the
solenoid valve.
a. Reconnect the black wire to the high temperature limit switch.
b. Reconnect the brown wire to the condenser solenoid.
c. Check the red wires between relay K1, the drain solenoid valve, and the
condenser solenoid for continuity, and secure connections. Replace or
repair faulty wiring and connections.
d. Test relay K1
The rinse solenoid valve energizes for 3 minutes only during the blowdown cycle.
If testing takes longer than 3 minutes, restart the blowdown cycle by setting the
ON/OFF switch first to ON and then to OFF.
1. Set the voltmeter to the 250 VAC scale.
2. The rinse nozzle is located at the top of the float cylinder. Watch and time the
water spray from the nozzle. Start timing immediately upon starting the
blowdown cycle. To start blowdown, set the ON/OFF switch first to ON and
then to OFF.
• If valve opens, sprays water into the cylinder for 3 minutes and stops, the valve is
operating properly. End this procedure here.
• If valve opens, sprays water into the cylinder and continues to spray after 3 minutes
continue this procedure with step 3.
• If there is no rinse flow into the cylinder, continue this procedure with step 4.
3. Check voltage across the rinse solenoid terminals.
• If the meter reads 0 VAC, the valve has failed open. Replace the rinse
solenoid valve.
• If the meter reads 120 VAC for more than 3 minutes after starting the
blowdown cycle, replace the 3-minute timer.
4. Check for 120 VAC across the rinse solenoid terminals.
• If the meter reads 120 VAC across the solenoid terminals, either the solenoid
valve is faulty or the plumbing between the valve and the Goat cylinder is
blocked.
a. Check the tubing and fittings between the valve and the float cylinder, and
the spray nozzle for blockage or damage. Replace faulty fittings or tubing.
b. If the tubing and fittings are good, the solenoid valve is faulty. Replace
the rinse solenoid valve.
• If the meter reads 0 VAC across the rinse solenoid, the fault is not in the solenoid
valve.
a. Check the rinse solenoid circuit wiring for continuity, and secure connections.
Replace or repair faulty wiring and connections.
b. Test the 3-minute timer.
Model 21 -CET-8 Service Manual
Printed 12/90
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