STEAM REGENERATOR CONTROLS (Inside Cabinet)

Main Power Switch

- ON begins generation of clean steam by the heat exchanger. You

 

should allow 20 minutes to generate steam.

 

OFF opens the Automatic Blowdown valve. This empties the heat

 

exchanger by releasing both water and steam to the drain. This

 

should be done at least once daily to remove sediment, lime or

 

scale.

Pilot Light (green)

- Indicates main power is ON.

Boiler Pressure Gauge

- Should read 9 to 13 psi during operation and 0 psi during shutdown.

Water Level Sight Glass

- This assembly indicates the water level, and should be checked at

 

least once a day. The correct water level is one-half the height of

 

the glass. Extreme murkiness indicates the boiler should be

 

cleaned.

Water Level Control

- While ON, briefly open the manual valve under the float chamber

 

once each week to remove any sediment that might accumulate

 

and seize the floats. The float chamber is beside the regenerator

 

tank.

Safety Valve

- This valve will release (pop off) if boiler pressure exceeds 15 psi.

 

Once a week, this valve should be tripped during operation to make

 

sure it functions properly.

Pressure Regulator

- Reduces the steam pressure from the boiler to the steamer

 

compartments to 6 psi. Twice a year, unscrew the large hex head

 

plug located at the bottom of the regulator and remove and clean

 

the strainer. Carefully reassemble.

STEAMING

Each steaming compartment is controlled by its own controls. When a compartment is not operating, the drain is open and the steam inlet valve from the boiler is closed. Food, properly portioned and in appropriate solid or perforated pans, is placed on rack supports (or wire shelves) in the steaming compartment. After closing and sealing the door, setting the timer and pulling out the operating handle, the steam inlet valve from the heat exchanger opens, allowing steam at a pressure of 6 psi to enter the compartment. Air from the sealed compartment exits through the vent until the temperature reaches 180°F (82°C); then the vent closes, and the compartment can become pressurized. Steaming continues until the timer reaches “0” and the buzzer sounds. To silence the buzzer, push in the operating handle. Wait 1 minute for steam or hot water to drain away. Open the door and remove the cooked food.

The cabinet (lower portion of steamer) contains the heat exchanger which has a steam coil in a pressurized tank. The steam coil is supplied with steam from an outside source which exchanges its heat and makes clean steam from fresh water fed into the tank. The supplied steam is kept separate from the newly created steam. Because of this separation, the outside steam source may be contaminated or toxic and yet does not come in contact with food. Only the clean steam created in the heat exchanger tank is sent to the compartments.

PREHEAT COMPARTMENTS

If the steamer has been standing idle and the compartments are cold, preheat before loading.

– 9 –

Page 9
Image 9
Vulcan-Hart VSC2, VSC3 operation manual Steam Regenerator Controls Inside Cabinet, Steaming, Preheat Compartments