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Installation instructions and Owner’s Manual
9
Pressure Testing Heater Gas Connections:
1. Make sure that the heater supply piping system
is connected and has been leak tested as
described above.
2. Make sure control knob of heater is in OFF
position.
3. Open equipment shutoff valve (see figure 13).
4. Open main gas valve on or near gas meter.
5. Check all joints from equipment shutoff valve to
control valve (see figure 14). Apply mixture of
liquid soap and water to gas joints. Bubbles
forming show a leak.
6. Correct all leaks at once.
7. Light heater (see Operating Your Heater, pages
11 and 12
for thermostat models or pages 9
and 10 for non-thermostat models). Check the
rest of the internal joints for leaks.
8. Turn off heater (see To Turn OFF Gas to
Appliance, page 12 for thermostat models and
page 11 for non-thermostat models).
9. Replace lower front panel.
Figure 13
Figure 14
ELECTRICAL WIRING DIAGRAM:
Figure 15
If any original wiring as supplied with the heater must be
replaced, it must be replaced with type AWG 105
o
C wire
or its equivalent except as indicated.
WARNING: Electrical Grounding Instructions: This
heater is equipped with a three-prong (grounding)
plug for your protection against shock hazard and
should be plugged into a properly grounded three-
prong receptacle.
OPERATING YOUR HEATER
NON-THERMOSTAT MODELS
MHIR10NG / MHBF10NG / TSIR10NG / TSBF10NG
FOR YOUR SAFETY READ BEFORE LIGHTING
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 pilot that must be lighted
by hand. 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 electrical switch; do not use
any phone in your building.
• Immediately call you gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
• If you can not reach your gas supplier, call the
fire department.
Gas Meter
Control Valve
Equipment
Shutoff Valve
Equipment
Shutoff Valve
Open
Closed