Munchkin 399M - Manual (Page 29)

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START-UP PROCEDURES
PART 6. START-UP PROCEDURES
A. ITEMS TO BE CHECKED BEFORE LIGHTING THE MUNCHKIN
It is recommended that you read the General Information Section (Part 1) to get a better under-
standing how the Munchkin operates before you start the unit.
1. Make sure that you follow the Lighting instruction before running the Munchkin.
2. Make sure the unit has a minimum water supply pressure of 10 PSI or a fault code of PrO will
appear in the display. While this Fault code is on the display the unit will not operate unit until
the water pressure is brought above 10 PSI. This Fault code is caused by the Water pressure
switch being open for more than 5 seconds which is an indication your system pressure is
below 10 PSI. Increase the water pressure in the system until the pressure gauge reads 10psi.
This code will disappear once the Water Pressure switch is closed, which will allow you to
start the Munchkin.
3. Check to see if all the electrical connections are on securely. Also, make sure the clear plas-
tic hose is connected to the outlet of the combustion blower outlet and connected back to
the Air Switch.
4. Make sure that the Gas is turned on inside the cabinet and outside of the Munchkin.
5. Double check the temperature setting (Note: The Munchkin is factory set at 180 degrees)
6. Make sure the unit is properly grounded and the electrical wiring meets the requirements of
the electrical section (Part 2).
7. Turn on the power to the Munchkin. The Temperature of the Munchkin Outlet will appear in
the display provided. If a fault code appears, correct the fault before operating. Make sure that
the room thermostat is connected and turn the room thermostat up above room temperature
to start the combustion blower fan to run the Munchkin. The Munchkin will now run its pre-
purge cycle, then begin running, which will be indicated by the Green light illuminating under
“Flame On” in your display.
B. LIGHTING INSTRUCTIONS
FOR YOUR OWN SAFETY READ BEFORE OPERATING
1. This appliance does not have pilot. It is equipped with an ignition device which automatical-
ly lights the burner. Do not try to light the burner by hand.
2. BEFORE OPERATING 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.
• Immediately call your gas supplier from a neighbor's phone. Follow the gas suppliers'
instructions.
• If you cannot reach your gas supplier, call the fire department.
3. Turn on gas shutoff valve (located inside of the Heater) so that the handle is aligned with the
gas pipe. If the handle will not turn by hand, don't try to repair it, call a qualified service tech-
nician. Force or attempted repair may result in a fire or explosion.
DANGER
If you do not follow these instructions exactly, a fire or explosion may
result, causing property damage, personal injury or loss of life.