Cleveland SteamCraft 10 Service Manual page 111

Models 24-CGA-10, and 24-CEA-10
YES ( Continued)
IT:3-2 Do the burners ignite shortly after the fan motor starts.
IT:3-3 Is the condenser spray operating.?
IT :3-4 Does the Steam Relief Valve open as the unit begins to generate steam.?
YES NO
(Continued on next page.)
Cleveland Range, Inc.
SteamCraft 10 Service Manual, Chapter 6
3. Three of the components that could cause ignition failure have already been
checked in Phase 2 (IT:2-3).
• The 24 Vac transformer
• Relay R3
• The Fan Motor
If the burner ignition and control system was not checked in Phase 2, do so now.
Refer to IT:2-4 and Chapter 8.
NOTE: During steaming functions, a continuous stream of water sprays
into the condenser fitting. Check the 1-inch air gap between the drain
piping and the floor drain for this water flow.
No water flow from the condenser to the floor drain indicates four possible
malfunctions:
1. Check the TIMED/MANUAL switch according to component test CT:9.
2. Check the condenser solenoid valve and adjoining plumbing for
blockage.
3. Check the drain lines between the condenser fitting and floor drain for
blockage.
4. If the plumbing, drain lines, and drain valve are not blocked, refer to
component test CT:10 and test the condenser solenoid valve.
NOTE: When the water in the steam generator approaches steam tempera-
ture, the pre-heat thermostat toggles (at 185°) to open one pole and close
the other. The closed pole activates relay R4, energizing the Steam Relief
Valve. This Valve is normally open to equalize pressure in the steam
generator during the non-steaming operations. With this valve dosed, steam
is directed to the upper and lower compartment Steam Valves. If the valve
does not open, the steam escapes to the drain manifold and floor drain.
Refer to the schematic diagram, and note that both the R4 and R3 relay
contactors must be closed for this normally open valve to close. The Steam
Relief Valve can close only while the Fan Motor is running.
Failure of any of three components can prevent the Steam Relief Valve
from closing.
1. Check the preheat thermostat according to component test CT:8.
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