Cleveland SteamCraft 10 Service Manual page 83

Models 24-CGA-10 and 24-CEA-10
Cleveland Range, Inc.
SteamCraft 10 Service Manual, Chapter 5
A. When the ON/OFF switch is first set to ON the water fill and preheat cycles
start and operate as described on pages 72 and 74.
B. When the lower TIMED/MANUAL switch is set to MANUAL, the lower
compartment steaming circuits are energized directly.
1. The normally closed lower compartment condenser and steam valves open.
Condenser spray starts flushing the condenser drain fitting. The steam path
opens between the lower compartment and the steam generator (Figure 5-8,
dark shading).
2. Relay R2 is energized. Relay R3 and the burner ignition and control
components are energized through the closed R2 contactor. This bypasses the
preheat side of the Preheat Thermostat (dark shading). Burner ignition and
control operations are explained on page 79.
3. The burner fan starts and the gas burners ignite. In a few minutes, the burners
increase water temperature from 185°F to steaming temperature
(above 217 F).
• Water Temperature over 185°F activates the Preheat Thermostat. The
preheat side of the switch opens, closing the R4 (Steam Relief) side of the
switch (Figure 5-8, light shading).
• With both R3 and R4 relays energized, the R3 and R4 contactors are closed.
With both contactors closed, the normally open Steam Relief Valve closes
to direct steam into the lower cooking compartment. Refer to Figures 5-7
and 5-8.
4. Steam builds in the generator and expands into the lower cooking
compartment. The steam generator steaming cycle continues simultaneously
with the water fill cycle.
Page 77
Printed 3/93