Guide

14
There are many other factors to keep in mind, more so in a
mobile operation. Many people think they do not need a pressure
regulator on the appliance as well as on the tank. This is not
true! There should always be a tank regulator on the tank and
an appliance regulator on each gas appliance due to each
appliance’s distinctive operation pressure. Giving an appliance
too much or too little gas pressure can cause operation and
performance problems.
When installing, you should use a manometer to check and set
the appliance to the designed operation pressure. Model 2923SF,
2932SF, 2941SF is designed to operate at ten (10) inches water
column (WC) for LP gas. Make sure you fill the tank with oil or
water whenever you run the burners. four (4) inches water column
when operation on natural gas.
For adjustments, if needed, follow instructions 1 and 2 .
1. Pilot Flame Adjustment
Combination control is shipped with pilot flow at maximum. Refer
to the pilot burner manufacturer’s instruction for recommended
size of the pilot flame. If adjustment is required, turn the pilot
adjustment screw clockwise to decrease or counterclockwise to
increase pilot flame.
2. Outlet Pressure Adjustment (a gauge capable of reading
inches W.C. is required for any Outlet Pressure Adjustments)
Remove cover to expose pressure regulator adjustment screw.
Bring heater to high fire (all burners on maximum). Slowly turn
adjustment screw with a small screwdriver until the required
burner pressure is recorded on the pressure gauge. Turn
adjustment screw clockwise to increase or counterclockwise to
decrease gas pressure to main burner.
Once you have set the unit at 10 inches W.C., turn off all the
appliances and shut off the gas supply. Remove the manometer.
When you install the pressure regulator, it is preferable to use
pipe sealer on the threads. Do not get sealer on the last few
threads. This keeps the sealer from drying, then breaking off
inside the pipe and plugging fittings and controls.
Whenever the equipment is moved or shut down, make sure you
follow the lighting instructions. If the thermostat or regulator is
struck, they may be knocked out of adjustment and need to be
recalibrated.
In a mobile operation, please keep in mind that every time the unit
is moved, you should check the pilot and, of particular importance,
check that the unit is as level as possible. If you are in a trailer,
perhaps you can make adjustments to the trailer for each site.
The legs on the 2323SF, 2932SF, 2941SF have adjustable feet
and can be used to level the unit. You want the unit to be slightly
higher in the back than in the front. This allows combustion air to
more easily be drawn in the front and exhausted by the rear flue.
If the unit is out of level with the front higher than the back, the
combustion may flue out the front and destroy the safety valve
and makes for less operator comfort.
Do not place a fan so the air blows directly at the front of the unit
or down the flue. Also, avoid locations that have natural draft
blowing into the unit or down the flue. These drafts will cause pilot
FRYER LIGHTING INSTRUCTIONS
NOTICE: When turning on the gas at the propane tank, turn gas
on very slowly. Turn valve just a small amount. This
allows the gas to get into the lines without shutting the
tank regulator down. The regulator on the tank should
have a safety feature that is designed to sense a leak.
After lighting pilot, open tank valve a few turns.
1. Turn knob to pilot position.
2. Push knob in.
3. Light pilot while holding knob in.
4. Hold knob in for 30-60 seconds while thermocouple heats up.
(May take longer at initial set up to purge lines.)
5. Release knob, check to see if pilot stays on.
6. Turn knob to ON position.
APPROXIMATE TEMPERATURE FOR KNOB SETTINGS
#1 Setting 240
#2 260
#3 286
#4 315
#5 335
#6 361
#7 397
SPECIAL INSTRUCTIONS FOR SHALLOW FRYER
Comstock-Castle’s model 2923SF, 2932SF and 2941SF is
designed as a shallow, large surface area fryer. This fryer is
designed for use in permanent locations operating on natural or
LP gas.
Model 2923SF, 2932SF and 2941SF can be used in mobile
operations, but, due to the nature of these types of operations,
special consideration should be given. Please follow the
installation manual supplied. if you have any installation questions
at all, please call us at 217-223-5070. Follow the pilot lighting and
thermostat calibration instructions in the manual. Many people
think they can successfully install gas appliances because they
have a pipe wrench and make a leak-free connection - this is not
the case.