Cleveland SteamCraft 10 Service Manual page 106

Page 100 SteamCraft 10 Service Manual, Chapter 6
IT: 1-5 Does water flow from the 3-way valve drain port, through the drain piping, to the floor drain?
IT:1-6 Does the blowdown cycle last for three minutes?
Phase 1 testing is complete. Proceed to Phase 2 testing.
Printed 3/93
NOTE: During blowdown, a continuous stream of water should flush through the 3-
way valve drain port, through the drain plumbing, and into the floor drain. Check the
1-inch air gap between the drain piping and the floor drain for this water flow.
No water flow from the 3-way valve to the floor drain indicates three possible
malfunctions:
• The plumbing between the drain valve and fill valve, or drain valve and floor
drain is blocked.
• The 3-way drain valve is malfunctioning.
• The fill solenoid valve is malfunctioning.
1. Check the drain solenoid valve and adjoining plumbing for blockage.
2. Check the drain line and air gap between the line and floor drain for blockage.
3. If the plumbing, drain lines, and drain valve are not blocked, refer to component
test CT:1 and test the drain solenoid valve.
4. If the 3-way valve is functioning properly, check the steam generator water fill
solenoid valve and associated plumbing for blockage.
5. If the water fill plumbing and valve are not blocked, refer to component test
CT:4 and test the water fill solenoid valve.
NOTE: The 3-minute timer stops the blowdown cycle approximately three minutes
after starting the blowdown cycle. Watch the float rinse nozzle and the drain pipe to
floor drain gap. Three minutes after switching the main disconnect to the ON
position, there should be no water flow at either point.
If the blowdown cycle has stopped before the above test sequence is complete, the
cycle can be restarted by switching the ON/OFF switch to the ON position and back
to the OFF position.
Test the 3-Minute timer according to component test CT:2.
Models 24-CGA-10 and 24-CEA-10
Cleveland Range, Inc.