22
OPERATION
WARNING: THE STEAMER AND ITS PARTS ARE
HOT. USE CARE WHEN OPERATING, CLEANING
OR SERVICING THE STEAMER. THE COOKING
COMPARTMENTS CONTAIN LIVE STEAM. STAY
CLEAR WHILE OPENING EACH DOOR.
CONTROLS — CABINET BASE GENERATOR (Fig. 13)
Handhole Cover Assembly — when unbolted and
removed, allows internal examination and cleaning of
boiler if required.
Water Level Gauge Assembly — permits visual
confirmation that water level is being maintained in the
boiler during operation. The correct water level is a
point one-half of the height of the glass. The manual
valves at the top and bottom of this assembly must be
fully open, and only closed if the glass tube should be
damaged.
Observe that the water is clean and clear in the
glass tube. The appearance of extreme murkiness
in the water indicates inadequate water quality and
will cause failure of controls and the steamer.
Warranty does not cover malfunction due to poor
water conditions. Blow down and/or clean the
generator.
Pilot Burner (Gas Base Generator Only) — should
remain lit at all times unless the steamer will not be in
use for an extended period of time. If at any time the
flame goes out, wait 5 minutes before relighting.
Main Burners (Gas Base Generator Only) — cycle
on and off to maintain steam pressure in the boiler.
Gas Combination Control Valve (Gas Base
Generator Only) — regulates flow of gas to burners.
Low Water Cutoff/Automatic Fill Control — Level
Sensing Probes — these controls allow the feed water
to enter the generator when the water level is low.
They will also shut off the heat source to the boiler if
the water level drops too low. The level sensing probes
may be easily removed to inspect for lime build-up. As
a rule, the condition of these devices will indicate the
overall water condition of the boiler. Clean the probes
if needed. Controls may not function and serious
clogging will occur if a daily blowdown procedure
is not followed.
Drain Solenoid Valve — a quick acting drain valve
provided for daily blowdown of the generator.
Strainers — a strainer is used in the water inlet line to
prevent foreign matter from becoming lodged in the
inlet solenoid valve. A “Y” strainer is inserted upstream
of the drain solenoid valve to allow the valve to operate
smoothly. A strainer is used in the pressure regulating
valve on models using direct steam supply.
Boiler Fill Solenoid Valve — admits water to the
boiler when demanded by the automatic fill controls in
order to maintain the correct water level in the steam
generator.
Blowdown Drain CWC Solenoid Valve — allows cold
water to flow to boiler blowdown drain and helps cool
the boiler water prior to its discharge into the drain.
Cycling Pressure Switch — controls boiler pressure
between prescribed limits by turning the heat source on
and off. A back-up switch of identical design is provided
and has a higher high setting and a lower low setting
than the primary control.
Power Switch — when turned ON will automatically
begin the steam generating process in the boiler. The
power switch is fastened to the front face of the
generator control box.
Pressure Regulating Valve — used to control
manifold steam pressure at 10-12 psi on models using
direct steam supply.
Water Inlet Ball Valve — water service valve which
can be used to stop water flow to the steamer when the
steamer is being serviced.
High Limit Thermostat — a protective device which
shuts off the gas or electric power if the boiler
overheats.
Descaler — hangs submerged in water inside the
generator and helps control scaling.
Drain — drains steam condensate and water from
cooking compartments and boiler.
