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GAS-FIRED HEATER Installation Manual
PART 1: PRODUCT AND SAFETY INFORMATION
(CONT’D)
Before Installing
WHEN SERVICING THE MUNCHKIN CONTENDER
• To avoid electric shock, disconnect electrical
supply before performing maintenance.
• To avoid severe burns, allow heater to cool
before performing maintenance.
MUNCHKIN CONTENDER OPERATION
• Do not block flow of combustion or
ventilation air to heater.
• Should overheating occur or gas supply fail to
shut off, do not turn off or disconnect electrical
supply to circulator. Instead, shut off the gas
supply at a location external to the appliance.
• Do not use this heater if any part has been
under water. Immediately call a qualified
service technician to inspect the heater and
to replace any part of the control system and
any gas control that has been under water.
HEATER WATER
The piping and components connected to the
Munchkin Contender for space the heating
application shall be suitable for use with potable
water. Toxic chemicals, such a used for boiler
treatment, shall not be introduced into the
potable water when the Munckin Contender is
used for space heating.
When the Munchkin Contender is used to sup-
ply potable water, it shall not be connected to
any heating system or component(s) previously
used with a non-potable water heating appli-
ance.
• If you have an old system with cast iron
radiators, thoroughly flush the system (without
heater connected) to remove sediment. The
high-efficiency heat exchanger can be damaged
by build-up or corrosion due to sediment.
• Do not use petroleum-based cleaning or sealing
compounds in heater system. Gaskets and seals
in the system may be damaged. This can result
in substantial property damage.
• Do not use “homemade cures” or “boiler patent
medicines.” Substantial property damage,
damage to heater, and/or serious personal injury
may result.
• Continual fresh make-up water will reduce the
heater life. Mineral buildup in heat exchanger
reduces heat transfer, overheats the stainless
steel heat exchanger, and causes failure.
Addition of oxygen carried in by make-up water
WARNING
Installer — Read all instructions in this manual,
and Munchkin Contender Venting section,
before installing. Perform steps in the order
given.
User — This manual is for use only by a
qualified heating installer/service technician.
Refer to User’s Information Manual for your
reference.
User — Have this heater serviced/inspected by
a qualified service technician annually.
Failure to comply with the above could result in
severe personal injury, death or substantial
property damage.
WARNING
Failure to adhere to the guidelines on this page
can result in severe personal injury, death or
substantial property damage.
WARNING
NEVER use any toxic chemical, including
automotive or standard glycol antifreeze or
ethylene glycol made for hydronic (non-potable)
systems. These chemicals are poisonous if
consumed and can cause injury or death. These
chemicals can also attack gaskets and seals in
water heaters.
WARNING
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.