Safety Before Lighting The Pilot; Lighting Instructions - Bosch 38B LP Installation And Operating Instructions Manual

Fig. 4 - Pressure Relief Valve
OPERATING INSTRUCTIONS
Before proceeding with the operation of the heater make
sure that the system is filled with water.
Fig. 5 - Water Piping
Open the cold water inlet supply to the heater fully.
Open a hot water faucet to permit the water to fill the heater
and the piping and to eliminate the air trapped in the system
Close the hot water faucet after the water flows freely and
all the air has escaped from the system. The water heater
is now ready to operate.
FOR YOUR SAFETY READ BEFORE
LIGHTING THE PILOT
WARNING: If you do not follow these instructions
exactly, a fire or explosion may result causing property
damage, personal injury or loss of life.
A. This appliance has a piezo-igniter for lighting the pilot
burner. When lighting the pilot, follow these instructions
exactly.
B. BEFORE LIGHTING smell all around the appliance
area for gas. Be sure to smell next to the floor because
some gas is heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS
- Do not try to light any appliance.
- Do not touch any electric switch; do not use any phone
in your building.
8
- Immediately call your gas supplier from a neighbor's
phone. Follow the gas supplier's instructions.
- If you cannot reach your gas supplier, call the fire
department.
C. Use only your hand to push in or turn the gas control
buttons. Never use tools. If a button will not push in, check
to make sure the buttons are being pushed in the proper
sequence. Follow these instructions exactly. If control
button(s) are jammed, close the gas supply and call a
qualified service technician. Attempted forceful repair may
result in a fire or explosion.
D. Do not use this appliance if any part has been under
water. Immediately call a qualified service technician to
inspect the appliance and to replace any part of the control
system and any gas control which has been under water.

LIGHTING INSTRUCTIONS

cover of heater)
1. STOP! Read the safety information on the front panel
of the heater.
2. The Gas valve must be turned off by sliding the gas
valve button ( ) to the far left under the OFF ( ) mark.
3. Wait five (5) minutes to clear out any gas. If you smell
gas, STOP! Follow "B" in the safety information above
on this plate. If you don't smell gas, go to next step.
4. The pilot burner is located behind the peephole in the
front center of the jacket directly below the lighting
instructions on the front panel of the heater.
5. Slide the gas valve button to the right, to the pilot position
( ).
6. Fully depress gas valve button (
pressing hard on pilot igniter button (
may have to be repeated.
7. Observe the pilot flame through the peephole. The gas
valve button should be held down at least 15 seconds
with pilot burning. When the gas valve button is released,
the pilot should continue to burn.
- If the gas valve button does not pop up when released,
stop and immediately call your service technician or gas
supplier.
- If pilot does not stay lit, repeat steps 1 through 7.
- If pilot will not stay lit after several tries, slide the gas
valve button to the left, under the OFF ( ) mark and call
service technician or gas supplier.
8. When the pilot remains on, slide the gas valve button to
the right, to the ON (
fire when water is drawn at a rate of 1/2 gallon or more
per minute.
NOTE: If main burner should fail to ignite, make sure pilot
is burning. If not, repeat lighting steps 1 through 7.
TO TURN OFF GAS TO APPLIANCE
Slide the gas valve button (
OFF ( ) mark and close the heater's individual shut-off
valve.
(as seen on front
)and light pilot by
). This step
) position. The heater will now
) to the far left, under the