Operating Tests And Final Checkout Procedure - Cleveland 24CGA10.2 Installation And Maintenance Instructions Manual

c. Operating Tests and Final Checkout Procedure (Continue from Blowdown Inspection)
(Sequence of Operation)
When checking inside the steamer always open the door slowly
and stand to the side and back away from the steamer. Water
leaking from the door gasket can be a sign of a blocked drain. If
the drain is blocked, hot water can accumulate inside the
compartment and spill out when the door is opened.
1). At the start of this test the controls should be set as follows:
·
The main power switch is ON.
·
The ON/OFF levers/switches are OFF (The red indicators on the control panels are not lit).
·
The TIMED/MANUAL switch is in the TIMED position. (or for ON/OFF models the ON/OFF
compartment selector switch is in the OFF position)
·
The timer display will be blank while the ON/OFF lever/switch is set to OFF. [key pad
models]
2). Set both the upper and lower compartment timers to zero.
a). KEYPAD MODELS
If the timer is not zeroed (00:00) when power is turned on in step 3, press and hold the
CLEAR key on the key pad control panel to zero the timer.
b). DIAL TIMER MODELS
If the Timer is not zeroed, turn the dial counter clockwise until it points to the 0 mark.
3). Set the ON/OFF lever/switch to the ON position. As the steam generator fills with water, check
the following functions.
a). The red ON/OFF indicator light turns ON. The fill valve opens and water begins to fill the
steam generator. The combustion blower turns on to purge the combustion chamber.
b). After a few minutes, water appears in the bottom of the probe cylinder. As the water level in
the steam generator rises;
¨ Check that no water flows from the drain opening.
¨ Check for plumbing leaks.
4). When the water in the steam generator reaches a safe operating level (which is the level of the
middle probe), the combustion blower shuts off and the pilot ignition cycle starts. The steam
generator begins to heat the water to stand-by temperature by lighting the pilot/standby burner.
a) Water continues to fill the generator and the water level in the probe cylinder continues to
rise.
b) The water in the probe cylinder stops rising, when water reaches the upper probe.
¨ If the water level continues to rise above the tip of the higher probe, have a qualified
service representative check the probe circuit.
5). Set the TIMED/MANUAL switches of both compartments to MANUAL (or for ON/OFF Models
set the compartment selector switches to ON), the steaming cycle starts. Check the following
functions.
·
If the water level in the steam generator is above the lower probe, the heating components
turn ON and begin to heat the water to steam. (For mechanical timer models only, the
pause light comes ON)
WARNING
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