Vulcan Materials c24ga10 ユーザーズマニュアル

F35425 (February 2006)

Page 34 of 40

C24GA SERIES CONVECTION STEAMERS - TROUBLESHOOTING

1

Power On

Power Switch is switched to the on position.

2

Fill Stage 1

Boiler fills with fast fill water valve, (3.7 GPM).

3

Low Level Probe Confirmation

Low Level Probe, (LLCO), is confirmed then power is applied to

burner system, fast fill valve is turned off.

4

Burner Operation

Power is supplied to operating pressure switch.

5

Blower

Blower is turned on by operating pressure switch.

6

Blower Pressure Switch

Blower air pressure switch is closed when fan is up to speed,

(0.35" to 0.4" WC) and supplies 24 VAC to the ignition module.

7

Pilot Ignition

Module turns on spark ignition and supplies power to combination

valve pilot valve, (PV & PV/MV terminals).

8

Flame Sense

Flame sense probe confirms pilot flame.

9

Main Burner

Ignition module supplies power to gas combination control valve,

(MV & PV/MV terminals), burner ignites.

10

Generator Initial Heat Up

Generator heats up.

11

Fill Stage 2

Generator 190°F thermostat supplies signal to water level control

to continue filling with trickle valve, (0.25 GPM).

12

Generator Full

Boiler will fill till high water probe is confirmed.

13

Ready

Operating pressure switch activates ready light and supplies timer

motor power at 3.5 to 4.0 PSI.

14

Full Pressure

Generator burner system is terminated at 3.5 to 4.0 PSI.

15

Low Pressure

Generator burner system will turn on at 2.5 to 3.5 PSI and operate

till generator pressure reaches 3.5 to 4.0 PSI.

16

Water Level

Water level is electronically controlled between the upper and

middle probe operating the trickle fill valve, 0.25 GPM.

17

Cooking

Timer is set and door switch is closed power will be supplied to

steam valve, cavity drain valve relay, and cook light.

18

Cold Water Condensate

Thermostat located in drain assembly will supply power to cold

water condensate valve to maintain drain temp below 140°F.

19

End Cook Cycle

Timer supplies power to buzzer, removes power from steam valves,

cook light, & cavity drain valve relay.

20

Power Off

Power Switch is switched to the off position.

21

Power Down

Power is removed from burner and water level controls.

22

Drain

Power is supplied to drain timer, drain valve is powered for
approximately 16 minutes.