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11
GAS-FIRED HEATER Installation Manual
G. WHEN REMOVING AN EXISTING HEATER
FROM AN EXISTING COMMON VENT SYSTEM
At the time of removal of an existing heater, the fol-
lowing steps shall be followed with each appliance
remaining connected to the common venting sys-
tem placed in operation, while the other appli-
ances remaining connected to the common vent-
ing system are not in operation.
a. Seal any unused openings in the common
venting system.
b. Visually inspect the venting system for
proper size and horizontal pitch and
determine there is non blockage or
restriction, leakage, corrosion and other
deficiencies which could cause an unsafe
condition.
c. Insofar as is practical, close all building doors
and windows and all doors between the space
in which the appliances remaining connected
to the common venting system are located
and other spaces of the building. Turn on
clothes dryers and any appliance not
connected to the common venting system.
Turn on any exhaust fans, such as range
hoods and bathroom exhausts, so they will
operate at maximum speed. Do not operate a
summer exhaust fan. Close fireplace dampers.
d. Place in operation the appliance being
inspected. Follow the lighting instructions.
Adjust thermostat so appliance will operate
continuously.
e. Test for spillage at draft hood opening after 5
minutes of main burner operation. Use the
flame of a match or candle, or smoke from a
cigarette, cigar, or pipe.
f. After it has been determined that each
appliance remaining connected to the
common venting system properly vents
when tested as outlined herein, return doors,
windows, exhaust fans, fireplace dampers,
and any other gas-burning appliance to their
previous conditions of use.
g. Any improper operation of the common
venting system should be corrected so the
installation conforms with the National Fuel
Gas Code, ANSI Z223.1 — latest edition.
Correct by resizing to approach the minimum
size as determined using the appropriate
tables in Table 13 of NFPA54 ANSI Z223.1
2006 of that code. Canadian installations
must comply with B149.1 or B149.2
Installation Code.
PART 3: PREPARE MUNCHKIN CONTENDER LOCATION
(CONTINUED)
DANGER
Do not install the Munchkin Contender heater
into a common vent with any other appliance.
This will cause flue gas spillage or appliance
malfunction, resulting in possible severe
personal injury, death or substantial property
damage.
WARNING
Failure to follow all instructions can result in flue
gas spillage and carbon monoxide emissions,
causing severe personal injury or death.
PART 4: PREPARE MUNCHKIN CONTENDER HEATER
A. REMOVE MUNCHKIN CONTENDER
HEATER FROM BOX
1. The Munchkin Contender is easy to handle.
Care must be taken to place it in a safe location
prior to installation on the wall to prevent dam-
age to the bottom mechanical connections.
B. PLACING THE WALL-MOUNTED
MUNCHKIN CONTENDER HEATER
Munchkin Contender Heaters are wall mounted.
Use only the Munchkin Contender Heater wall
mounting instructions included in installation
envelope.
CAUTION
Cold weather handling — If heater has been
stored in a very cold location (below 0°F) before
installation, handle with care until the plastic
components come to room temperature.