Electrical Wiring Diagram; What To Do If You Smell Gas - Mr. Heater MHBF30NGT Installation Instructions And Owner's Manual

Pressure Testing Heater Gas Connections:
1. Make sure that the heater supply piping sys-
tem 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 Appli-
ance, page 12 for thermostat models and page
11 for non-thermostat models).
9. Replace lower front panel.
Open
Equipment
Shutoff Valve
Figure 13
Gas Meter
Figure 14
Unvented Natural Gas Fired Room Heater
Closed
Control Valve
Equipment
Shutoff Valve

ELECTRICAL WIRING DIAGRAM:

If any original wiring as supplied with the heater must
be replaced, it must be replaced with type AWG 105
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
IR10NG / BF6NG / BF10NG
FOR YOUR SAFETY READ BEFORE LIGHTING
WARNING: If you do not follow these instructions
exactly, a fire or explosion may result causing prop-
erty 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 appli-
ance 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 neigh-
bor's phone. Follow the gas supplier's instruc-
tions.
•
If you can not reach your gas supplier, call the
fire department.
9
Installation Instructions and Owner's Manual
Figure 15
o C