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8

Installation instructions and Owner’s Manual

run correctly.

IMPORTANT:

 Hold pressure regulator with wrench when

connecting it to gas piping and/or fittings.

CHECKING GAS CONNECTIONS

WARNING:

 Test all gas piping and connections for

leaks after installing or servicing.  Correct all leaks
at once.

WARNING:

 Never use an open flame to check for a

gas leak. Apply a mixture of liquid soap and water to
all joints.  Bubbles forming show a leak.  Correct all
leaks at once.

PRESSURE TESTING GAS SUPPLY PIPING
SYSTEM

Test pressure in Excess of ½ psig (3.5kPa)

1.

Disconnect appliance with its appliance main
gas valve (control valve) and equipment shutoff
valve from gas supply piping system.  Pres-
sures in excess of ½ psig will damage heater
regulator.

2.

Cap off open end of gas pipe where equipment
shutoff valve was connected.

3.

Pressurize supply piping system by either using
compressed air or opening main gas valve on
or near gas meter.

4.

Check all connections and joints in gas supply
piping system. Apply mixture of liquid soap and
water to gas joints.  Bubbles forming show a
leak.

5.

Correct all leaks at once.

6.

Depressurize and relieve pressure in supply
piping system.

7.

Reconnect heater and equipment shutoff valve
to gas supply.

8.

Reconnected fittings must be checked for leaks
in next section.

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 propne/LP supply
valve.

3.

Check all joints from the propane/LP supply
valve 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.

LIGHTING / OPERATING INSTRUCTIONS FOR USE
WITH HOSE CONNECTED TO A REMOTE
CYLINDER, MAXIMUM SIZE 20 LBS:

This Heater may be used in a Recreational Enclosure or
Temporary Construction Work Enclosure with a Remote
Refillable Propane Cylinder ONLY when the Cylinder is
Located Outdoors and the Heater is Used with Mr. Heater
Hose assembly supplied.

DANGER:

 NEVER bring a refillable propane cylinder

indoors. A fire or explosion can occur causing property
damage, serious injury or death!

Inspect the hose before each use of the heater. If there is
excessive abrasion or wear, or the hose is cut, replace
prior to using the heater with one of the Mr. Heater Hose
assembly supplied (see parts list).

The propane cylinder must include a listed overfilling
protection device as well as a collar to protect the
cylinder valve.

Heater must be in an upright position during operation.

Make sure five-position Control Knob is in “OFF”
position.

Screw hose connector into regulator on heater and screw
connector on other end of hose into a regulated LP-gas
supply cylinder valve. Tighten all hose connections.

Open valve at LP-gas supply cylinder.

Check all hose connections for leaks with soapy water at
the threaded connection on heater where the hose
connector screws into the regulator and at LP-gas supply
cylinder.

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 propane/LP 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

, 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.

Summary of Contents for Blue Flame MHVFB10LP

Page 1: ... a qualified installer service agency or the gas supplier WARNING This is an unvented gas fired heater It uses air oxygen from the room in which it is installed Provi sions for adequate combustion and ventilation air must be provided Refer to FreshAir for Combustion and Ventila tion section on page 3 of this manual WARNING Improper installation adjustment alteration service or maintenance can caus...

Page 2: ...or anemia those under the influence of alcohol and those at high altitudes Propane LP Gas Propoane LP gas is odorless An odor making agent is added to propane LP gas The odor helps you detect a Propane LP gas leak However the odor added to propane LP gas may be present even though no odor exists Make certain you read and understand all warnings Keep this manual for reference It is your guide to sa...

Page 3: ...ir The information on pages 3 through 5 will help you classify your space and provide adequate ventilation Unusually Tight Construction If your home meets all of the three following criteria you must provide additional fresh air See Ventilation Air from Outdoors page 5 Unusually tight construction is defined as construction where a Walls and ceilings exposed to the outside atmo sphere have a conti...

Page 4: ...f an adjoining room If the extra space provides an unconfined space remove door to adjoining room or add ventila tion grills between the rooms See Ventilation Air From Inside Building Fig 2 B Vent room directly to the outdoors See Ventilation Air From Outdoors Fig 3 C Install a lower Btu hr heater if lower Btu hr size makes room unconfined If actual Btu hr used is less than the maximum Btu hr the ...

Page 5: ...off valve with 1 8 NPT tap is an acceptable alternative to test gauge connection Purchase a CSA AGA certified equipment shutoff valve from your dealer SeeAccessories page 17 This heater may also be installed with the hose and regulator assembly included with heater LOCATING HEATER This heater is designed to be mounted on the wall For convenience and efficiency install the heater Where there is eas...

Page 6: ... bracket to wall studs 1 Drill holes at marked locations using 9 64 drill bit 2 Place mounting bracket onto wall Line up holes on each end of bracket with hole drilled in wall 3 Insert mounting screws through bracket and into wall studs 4 Tighten screws until mounting bracket is firmly fastened to wall studs Attaching to Wall using Anchor For attaching mounting bracket to hollow walls wall areas b...

Page 7: ...pressure to between 11 and 14 inches of water If you do not reduce incoming gas pressure heater regulator damage could occur Install external regulator with the vent pointing down as shown in Figure 12 Pointing the vent down protects it from freezing rain or sleet CAUTION Use only new black iron or steel pipe Internally tinned copper tubing may be used in certain areas Check your local codes Use p...

Page 8: ...OTE CYLINDER MAXIMUM SIZE 20 LBS This Heater may be used in a Recreational Enclosure or Temporary Construction Work Enclosure with a Remote Refillable Propane Cylinder ONLY when the Cylinder is Located Outdoors and the Heater is Used with Mr Heater Hose assembly supplied DANGER NEVER bring a refillable propane cylinder indoors A fire or explosion can occur causing property damage serious injury or...

Page 9: ...to heater is on 3 Push in gas control knob and slightly turn clockwise to the OFF position see figure 16 Note Knob cannot be turned from PILOT to OFF unless knob is pushed in slightly Do not force 4 Wait five 5 minutes 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 Push in gas control know sli...

Page 10: ...ct pilot flame pattern is not touching thermocouple This will cause the thermocouple to cool When the thermo couple cools the heater will shut down If pilot flame pattern is incorrect as shown in Figure 22 Turn heater off see To Turn OFF Gas to Appli ance page 11 for non thermostat models See Troubleshooting pages 14 and 15 Figure 22 BURNER FLAME PATTERN Figure 23 show a correct burner flame patte...

Page 11: ... should also be followed 1 Shut off the unit including the pilot Allow the unit to cool for at least thirty minutes 2 Inspect burner and pilot for dust and dirt 3 Blow air through the port slots and holes in the burner A yellow tip on the pilot flame indicates dust and dirt in the pilot assembly To clean the pilot assembly find the small pilot air inlet hole about two inches from where the pilot f...

Page 12: ...d 1 Burner orifice is clogged 2 Burner orifice diameter to small 3 Inlet gas pressure is too low 1 Manifold pressure is too low 2 Burner orifice is clogged When Piezo ignitor knob is turned there is no spark at pilot ODS pilot lights but flame goes out when control knob is released When Piezo ignitor knob is turned there is a spark at the ODS pilot but no ignition Burner does not light after ODS p...

Page 13: ... line have gas line checked by local gas company 3 Observe minimum installation clearances see Figure 4 page6 4 Clean burner orifice see Cleaning and Maintenance on page 13 or replace burner orifice 1 Turn heater off when using furniture polish wax carpet cleaner or similar products White powder residue forming within burner box or on adjacent walls or furniture 1 Heater burning vapors from paint ...

Page 14: ...nerco Group Inc s 800 on the back of this manual TECHNICAL SERVICE You may have further questions about installation operation or troubleshooting if so contact Enerco Group Inc s 800 on the back of this manual ACCESSORIES Purchase these heater accessories from your local dealer If they can not supply these accessories contact your nearest Parts Central or call Enerco Group Inc s 800 for informatio...

Page 15: ...Electrode 20 1 70654 Burner Mounting Bracket Right 1 20 2 70599 Burner Mounting Bracket Left 1 22 1 70328 Heat Shield Top 1 22 2 70329 Heat Shield Right 1 22 3 70331 Heat Shield Back 1 23 70663 Regulator Mounting Bracket 1 24 70665 Floor mount feet 2 26 70332 Grill guard 1 27 2 70364 Orifice 10 BF 1 33 1 70335 Heat Shield Left 1 42 70337 Control Valve Knob 1 43 70589 1 4 SAE Flare x 3 8 MPT 1 44 2...

Page 16: ... original factory replacement parts Failure to use original factory parts voids this warranty The heater MUST be installed by a qualified installer in accordance with all local codes and instructions furnished with the unit This warranty does not apply to parts that are not in original condition because of normal wear and tear of parts that fail or become damaged as a result of misuse accidents la...

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