Cleveland SteamCraft 10 Service Manual page 116

Page 110 SteamCraft 10 Service Manual, Chapter 6
IT:4-10 Does the burner fan motor start when the timer starts its countdown?
IT:4-11 Do the burners and fan motor shut off when the key pad display reaches zero?
Repeat Phase 4 tests IT:4-6 through IT:4-11 for the lower compartment control panel.
Phase 4 testing is complete for Units with Electronic Key Pad Timer Control Panels.
Printed 3/93
Models 24-CGA-10 and 24-CEA-10
NOTE: The burner relay (R1 or R2) energizes relay R3 starting the fan motor and
the burner ignition sequence. If the fan does not trigger the air prover pressure
switch, the burners do not light.
The burner ignition and control components have already been tested in Phase 3,
above. Only a failure of the TIMED/MANUAL switch and/or the electronic timer
can prevent the burner fan from starting the burner ignition sequence.
1. Check the TIMED/MANUAL switch according to component test CT :9.
2. Check the electronic timer according to component test CT:17.
Replace the Timer
1. Set the upper compartment timer to the zero (00:00).
2. Cool the water in the steam generator to preheat temperature by running a partial
blowdown cycle.
a. Set the ON/OFF switch to the OFF position for one minute. This will drain
about a half of the hot water from the steam generator.
b. Set the ON/OFF switch back to the ON position. This will replace the drained
hot water with cool water.
3. Perform Phase 4 electronic timer testing using the lower compartment control
panel
Cleveland Range, Inc.