MrHeater MHVFBF10NGT Operating Instructions And Owner'S Manual Download Page 9

9

Operating Instructions and Owner’s Manual

Mr. Heater | Unvented Natural Gas Fired Room Heater

NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!

NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!

NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!

OPERATION

Low Pressure

Test Pressure Equal To or Less Than ½ 
psig (3.5 kPa)
1.  Close equipment shutoff valve. 

 See Figure 13.

2.  Pressurize supply piping system 

by either using compressed air or 
opening main gas valve on or near gas 
meter.

3.  Check all joints from the gas meter to 

equipment shutoff valve. See Figure 
14. Apply mixture of liquid soap and 
water to gas joints. Bubbles forming 
show a leak.

4.  Correct all leaks at once.
5.  Depressurize and relieve pressure from 

supply piping system.

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 natural gas supply valve.
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.

8.  Turn off heater. See To Turn OFF Gas 

to Appliance.

9.  Replace lower front panel. 

Figure 13

Figure 15

Figure 14

Equipment 
Shutoff 
Valve

Open

Closed

Igniter Button Control 

Knob

To gas meter

Control Valve

Equipment Shutoff  Valve

OPERATING YOUR HEATER
For Your Safety Read Before 
Lighting

A.  This appliance has a pilot that must be 

lit 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

•  Shut off gas supply.
•  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.

C.  Use only your hand to push in or 

turn the gas control knob. Never use 
tools. If knob will not push in or turn 
by hand, don’t try to repair it; call 
a qualified service technician or gas 
supplier. Force or attempted repair 
may result in a fire or explosion.

D.  Do not use this appliance if any part 

has been underwater. Immediately call 
a qualified service technician to inspect 
the appliance and to replace any part 
of the control system which has been 
under water.

Lighting Instructions

1.  STOP! Read the all safety information 

included with and on the side of 
heater.

2.  Check that gas supply to heater is on.
3.  Push in gas control knob and slightly 

turn clockwise 

 to the OFF position 

See Figure 15.

Note:

 Knob cannot be turned from 

PILOT to OFF unless knob is pushed in 
slightly. Do not force.

4.  Wait five (5) minutes to clear out any 

gas. Then smell for gas, including 
near the floor. If you smell gas, STOP! 
Follow “B” in the safety information 
above. If you do not smell gas, go to 
the next step.

5.  Turn counterclockwise 

 to PILOT/

IGN, if knob does not turn then 
slightly depress and turn. Once knob 
is in PILOT/ IGN depress for five (5) 
seconds.

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.

Summary of Contents for MHVFBF10NGT

Page 1: ...e or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electrical switch...

Page 2: ...rating the heater Installation and repair should be done by a qualified service person The appliance should be inspected before use and at least annually by a professional service person More frequent...

Page 3: ...been underwater Immediately call a qualified service technician to inspect the room heater and to replace any part of the control system and any gas control which has been underwater 9 Operating heat...

Page 4: ...lings exposed to the outside atmosphere have a continuous water vapor retarder with a rating of one perm 6 x 10 11 kg per pa sec m2 or less with openings gasketed or sealed and 2 Weather stripping has...

Page 5: ...onfined space You will need no additional fresh air ventilation Ventilation Air Ventilation from Inside Building This fresh air would come from an adjoining unconfined space When ventilation to an adj...

Page 6: ...s are 16 inches apart Attach mounting bracket to wall in one of two following ways 1 Attach to wall studs 2 Attach to wall anchor Decide which way best suits your needs Either method will provide a se...

Page 7: ...rk screws locations on wall 3 Remove heater from mounting bracket 4 If installing bottom mounting screw into hollow or solid wall install wall anchors Follow steps 1 through 4 under Attaching to Wall...

Page 8: ...pliance must be isolated from the gas supply piping system by closing its equipment shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than ps...

Page 9: ...ctly 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 Shut...

Page 10: ...ilot Position CAUTION Do not try to adjust heating level by using equipment shutoff valve To Turn Off Gas To Appliance SHUTTING OFF HEATER 1 Turn off equipment shutoff valve 2 Turn control knob clockw...

Page 11: ...s vacuum cleaner pressurized air or small soft bristled brush to clean CLEANING BURNER PILOT AIR HOLE INLET We recommend that you clean the unit every 2 500 hours of operation or every three months We...

Page 12: ...l the fire department SYMPTOM SYMPTOM When ignitor button is pressed in there is a spark at the ODS pilot but no ignition When igniter button is pressed in there is no spark at pilot CAUSE CAUSE REMED...

Page 13: ...as regulator 7 Thermocouple connection loose at control valve 7 Hand tighten thermocouple nut until snug and then tighten 1 4 turn more 8 Pilot flame not touching thermocouple which allows thermocoupl...

Page 14: ...lly clogged 3 Clean ODS pilot see Cleaning and Maintenance page 11 1 Gas leak See WARNING statement at top of page 12 1 Locate and correct all leaks see Checking Gas Connections page 9 2 Control valve...

Page 15: ...o Fresh Air for Combustion and Ventilation on pages 3 5 REMEDY SYMPTOM Heater produces a clicking ticking noise just after burner is lit or shut off CAUSE 1 Metal expanding while heating or contractin...

Page 16: ...01 Orifice 1 9 80084 Regulator 1 10 80055 Regulator Mounting Bracket 1 11 80058 Floor Mounting Feet Beige 1 Item Part No Description 80214 Floor Mounting Feet White 1 12 NA Regulator Connection 1 13 8...

Page 17: ...84 Regulator 1 7 80055 Regulator Mounting Bracket 1 8 80058 Floor Mounting Feet Beige 1 80214 Floor Mounting Feet White 1 Item Part No Description 9 NA Regulator Connection 1 10 80036 Wall Mounting Br...

Page 18: ...Natual Gas Fired Room Heater Operating Instructions and Owner s Manual NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING NEVER LEAVE THE HEATER UNATTENDE...

Page 19: ...ons and Owner s Manual Mr Heater Unvented Natural Gas Fired Room Heater NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING NEVER LEAVE THE HEATER UNATTENDE...

Page 20: ...AM 5 00 PM EST Monday through Friday Please include the model number date of purchase and description of problem in all communication LIMITED WARRANTY Mr Heater Inc warrants its heaters and accessorie...

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