Mr. Heater MH4B, MH4BC User Manual

MR HEATER STARTING SERIAL #: MHC1510000001 BASECAMP STARTING SERIAL #: MHC151100000001

OPERATING INSTRUCTIONS AND OWNER’S MANUAL

MR. HEATER

MODEL

MH4B

READ INSTRUCTIONS CAREFULLY: Read and follow all instructions. Place instructions in a safe place for future reference. Do not allow anyone who has not read these instructions to assemble, light, adjust or operate the heater.

BASECAMP

MODEL

MH4BC

PORTABLE PROPANE HEATER FOR RECREATIONAL, COMMERCIAL AND EMERGENCY INDOOR USE

WARNING:

— Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any

other appliance.

— An LP cylinder not connected for use shall not be stored in the vicinity of this or any other

appliance.

— WHAT TO DO IF YOU SMELL GAS

• Do not try to light appliance.

•

• Shut off gas to appliance. — Service must be performed by a qualified service agency.

If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.

Adequate combustion and ventilation air must be provided. Refer to page 3.

ENERCO GROUP INC., 4560 W. 160TH ST., CLEVELAND, OHIO 44135 • 216-916-3000

06/08 15125 Rev. A

WARNING:

Every time tank is connected to unit, connection must

be checked for leaks in one or more ways: Apply soapy water to connection, look for bubbles, listen for hiss of escaping gas, feel for extreme cold, smell for rotten egg

odor. Do not use if leaking!

WARNING:

Any changes to this heater or its controls can be

dangerous.

WARNING:

Early signs of carbon monoxide poisoning resemble the

u, with headache, dizziness and/or nausea. If you have these signs, heater may not be working properly. Get

fresh air at once! Have heater serviced.

WARNING:

If the recreational or commercial enclosure does not

have a window or roof vent, DO NOT USE THIS HEATER

INSIDE.

THE STATE OF CALIFORNIA REQUIRES THE FOLLOWING WARNING:

WARNING:

Combustion by-products produced when using this product contain carbon monoxide, a chemical known to the State of California to cause cancer and birth defects (or other reproductive harm).

CONTENTS

General Safety Instructions ............................................... 3

General Information .......................................................... 3

Operating with Disposable Propane Cylinders

Maintenance.....................................................................4

Troubleshooting ................................................................ 5

Parts List

Parts Ordering Information

Service Information ...........................................................8

........................................................................... 6

............................................... 8

...................4

SpECIFICATIONS

MODEL NO. .........................................MH4B/MH4BC

GAS TYPE ......................................................PROPANE

INPUT BTU/HR. ...................................................3,800

CLEARANCE TO COMBUSTIBLES

TOP ....................................................................... 30”

FRONT ....................................................................24”

SIDES ...................................................................... 6”

REAR ....................................................................... 0”

Mr. Heater MH4B | Base Camp MH4BC Operating Instructions and Owner’s Manual

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GENERAL SAFETY INSTRUCTIONS

THIS IS A HEATING AppLIANCE. DO NOT OpERATE THIS AppLIANCE WITHOUT THE FRONT WIRE GUARD INSTALLED

• Due to high temperatures, the appliance should be

located out of trafc and away from combustible materi-

als.

• Children and adults should be alerted to the hazard of

high surface temperatures and should stay away to avoid

burns or clothing ignition.

• Young children should be carefully supervised when they

are near the appliance.

• Do not place clothing or other ﬂammable material on or

near the appliance.

• Do not operate heater in any moving vehicle.

• This heater can only be used in a recreational or com-

mercial enclosure with a window or roof vent. It may

also be used outdoors.

• This heater requires a vent area of 4 square inches (ex-

ample 2” x 2” opening) minimum for adequate ventila-

tion during operation. Do not use other fuel burning appliances inside.

• GAS PRESSURE AT HEATER IS REGULATED AND FIXED

AT 11” W.C.

• REGULATOR IN HEATER MUST ALWAYS BE IN PLACE

DURING OPERATION.

• Any safety screen or guard removed for servicing the ap-

pliance must be replaced prior to operating the heater.

• The appliance should be inspected before each use.

Frequent cleaning may be required. The control compartments, burner and circulating air passageways of

the appliance must be kept clean, see MAINTENANCE.

• DO NOT use this heater if any part has been under

water. Immediately call a qualied service technician to

inspect the heater and to replace any part of the control

system and any gas control, which has been under wa-

ter.

• When used without adequate combustion and ventila-

tion air, this heater may give off excessive CARBON

MONOXIDE, an odorless, poisonous gas.

• Some people - pregnant women, persons with heart

or lung disease, anemia, those under the inﬂuence of

alcohol, those at high altitudes - are more affected by carbon monoxide than others.

• When heater is placed on the ground, make sure the

ground is level and keep any objects at least 24 inches

from the front of the heater. THIS HEATER IS EQUIPPED WITH A TIP OVER SWITCH THAT WILL SHUT THE HEATER OFF IF THE HEATER TIPS OVER HOWEVER, DO NOT LEAVE HEATER UNATTENDED OR WHERE CHILDREN MAY CAUSE THE HEATER TO TIP OVER. NEVER OPERATE THE HEATER WHILE SLEEPING!

GENERAL INFORMATION:

• This heater is safe for indoor use in small recreational

enclosures, having means for providing combustion air and ventilation, such as enclosed porches, cabins, ﬁshing huts, trailers, tent trailers, tents, truck caps and vans. It may be used for emergency indoor heating and in commercial enclosures, having means for providing combustion air and ventilation, such as construction

trailers or temporary work enclosures.

Note: The heater can be used outdoors, but may

experience nuisance shutoffs due to certain wind

conditions.

• When the heater is cold or at room temperature, it

will take a few minutes for the burner tile to turn bright orange. This is normal and the heater is working

properly. If burner tile is visibly ﬂaming, turn heater off and call a qualiﬁed service technician.

• When the unit is lit, there should be about a quarter

inch (1/4”) border around the tile that will not turn

bright orange. This is normal.

• When operating the heater for the ﬁrst time, the top

area of the reﬂector may discolor. This is also normal and is no reason for concern.

• When operating the heater at altitudes over 7,000 FT.

above sea level, the unit may not burn as bright as in

lower altitudes. This is normal. At higher altitudes, the heater may shut-off. If this happens, provide fresh air, wait 5 minutes and re-light. Due to local atmospheric conditions heater may not re-light.

• Operating time will be approximately 5 1/2 hours on a

one 1lb. cylinder.

• When moving heater when lit or bumping heater setting

it down, tip over switch may shut off heater. If this happens, re-light.

• Due to natural operation of small tanks, condensation

may build up on tank and drip on surface under heater.

Operating Instructions and Owner’s ManualMr. Heater MH4B | Base Camp MH4BC

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LIGHTING / OpERATING INSTRUCTIONS

WARNING: Always inspect propane cylinder and heater

propane connections for damage, dirt, and debris before attaching propane cylinder. Do not use if head of cylinder is damaged, punctured or deteriorated.

ALWAYS ATTACH OR DETACH CYLINDER OUTDOORS AWAY FROM FLAMES, OTHER IGNITION SOURCES, AND ONLY WHEN HEATER IS COOL TO TOUCH. NEVER SMOKE WHEN ATTACHING OR REMOVING PROPANE CYLINDER!

• Use only LP-gas cylinders marked in accordance with the

U.S. Dept. of Transportation (DOT).

• Use only 16.4 oz. (1 lb.) disposable cylinders that mate

with No. 600 valve connection.

• Heater and attached cylinder must be in an upright

position during operation.

• Screw 1 lb. disposable LP-gas supply cylinder clockwise

(from bottom) into portable heater until hand-tight and

ﬁt cylinder into stand.

• Check cylinder connection for leaks with soapy water

at the threaded connection under the domed plastic

cover where the cylinder screws into the regulator. SEE

WARNING! ON PLASTIC COVER.

• Depress “ON” button to light pilot ame (repeat until

pilot lights) and continue to hold for 30-60 seconds.

• After lighting pilot, release “ON” button to light heater.

• To shut off heater, press the “OFF” button.

• CAUTION: After turning heater off, wire guard will

remain hot. Allow to thoroughly cool before storing.

• Do not operate, store or remove cylinder near

ﬂammable items or ignition sources.

• LP-GAS CYLINDERS MUST BE DISCONNECTED FROM

HEATER WHEN NOT IN USE!

MAINTENANCE:

Always keep the heater area clear and free from

combustible materials, gasoline and other ﬂammable vapors and liquids.

Keep the vent areas (slots in the bottom and top of the heater) clear at all times.

Visually inspect the pilot ﬂame and burner periodically

during use. The pilot ame should be blue in color (not yellow) and will extend to the thermocouple. The ame will surround the thermocouple just below the tip, see Figure 2.

A slight yellow ame may occur where the pilot ame

and main burner ﬂame meet. The burner should be bright

orange (with a slight blue color around the border, a redorange haze that is visible on the ceramic tile is acceptable) and without a noticeable ame.

A blue ﬂame that rolls out at the top of the ceramic tile

indicates an accumulation of dust, lint or spider webs

Pilot Flame

Oxygen Depletion Sensor

Figure 2

inside the housing assembly and main burner assembly. If

the pilot is yellow or the burner has a noticeable ame, cleaning may be required. Use the following procedure to

inspect the casing assembly and main burner assembly. It is necessary to periodically check the burner oriﬁce and burner venturi to make sure that they are clear of insects/

nests or spider webs that may accumulate over time. A

clogged tube can lead to a ﬁre.

CLEANING INSTRUCTIONS:

1. Allow heater to thoroughly cool before performing

any maintenance.

2. Remove disposable 1 lb. propane cylinder from

heater.

3. Remove right side plastic service panel (ref.5) by removing the six screws holding it in place.

4. Inspect the interior of casing for accumulation of

dust, lint or spider webs. If necessary, clean the interior of the casing assembly with a vacuum cleaner or compressed air (max 30 psi). Do not damage any components within the casing assembly when you

are cleaning.

5. Inspect and clean main burner (ref. 13) and orice (ref. 3) by using a vacuum or compressed air (max 30 psi).

6. Inspect and clean pilot tube (ref. 14). Insert a

doubled over pipe cleaner into the pilot tube until

it bottoms against the pilot orice (approximately 2”). Rotate the pipe cleaner a couple of times and remove. Blow out the remaining debris using

compressed air.

WARNING: Never use needles, wires or similar cylindrical

objects to clean the pilot to avoid damaging the

calibrated ruby that controls the gas ow through the

pilot oriﬁce.

7. Apply compressed air (max 30 psi) into the ceramic tile of burner assembly and venturi tube (ref. 13) to remove dust, lint and spider webs.

8. Reinstall the right side plastic service panel.

Mr. Heater MH4B | Base Camp MH4BC Operating Instructions and Owner’s Manual

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TROUbLESHOOTING INFORMATION:

If Spark electrode does not produce spark. CHECK

• Spark electrode broken – replace.

• Igniter wire may not be attached to spark

electrode.

• Igniter wire damaged – replace.

• Piezo igniter defective – replace regulator valve

assembly.

If Spark electrode produces spark but pilot does not light. CHECK

• No gas to heater – re-install or replace gas

cylinder.

• Pilot is blocked from spider web or dirt – clean

pilot, see MAINTENANCE.

If Pilot ﬂame does not stay lit when button is released. CHECK

• “Pilot/Ignition” button not held long enough

to purge air from line.

• Pilot ame not surrounding thermocouple –

clean pilot, see MAINTENANCE.

• Pilot Assembly defective – replace.

• Tip switch wires disconnected – connect

tip switch (check off switch and off switch wiring).

If Main burner does not ignite. CHECK

• Main burner orice is blocked – clean burner,

see MAINTENANCE.

If Heater keeps shutting “OFF” during normal operation. CHECK

• Pilot is blocked – clean pilot, see

MAINTENANCE.

• Provide minimum fresh air opening of 4 square inches (example 2” x 2” opening).

• Tip over switch activated from bumping heater. Re-light

—INTENTIONALLY LEFT bLANK —

Operating Instructions and Owner’s ManualMr. Heater MH4B | Base Camp MH4BC

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Mr.HeaterMH4B•BaseCampMH4BC

Mr. Heater MH4B | Base Camp MH4BC Operating Instructions and Owner’s Manual

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pARTS LIST:

SEE bACK pAGE FOR pARTS ORDERING INFORMATION

ITEM PART NO. NUMBER DESCRIPTION

NOTES:

______________________________________________________________

1 15161 Regulator/Valve Assembly 1

2 15151 Orice 1

3 15163 Off Button Wire 1

4 15126 Left Housing 1

5 15128 Right Service Housing 1

6 15122 On Button 1

7 15123 Off Button 1

8 15165 Off Button Spring 1

9 15124 Tank Base 1

10 15157 Reﬂector Panel 1

11 15158 Reﬂector Ring 1

12 15162 Wire Guard 1

13 15138 Burner Assembly 1

14 15155 ODS/Pilot Assembly 1

15 15153 Burner Bracket 1

______________________________________________________________

16 15145 Off Switch 1

17 73403 Tipover Switch 1

18 15148 Pilot Fuel Line 1

19 15154 Heat Shield 1

______________________________________________________________

Operating Instructions and Owner’s ManualMr. Heater MH4B | Base Camp MH4BC

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OpERATING INSTRUCTIONS AND OWNER’S MANUAL

MR. HEATER

MODEL

MH4B

READ INSTRUCTIONS CAREFULLY: Read and

follow all instructions. Place instructions in a safe place for future reference. Do not allow anyone who has not read these instructions to

bASECAMp

MODEL

MH4BC

assemble, light, adjust or operate the heater.

WARNING:

USE ONLY MANUFACTURER’S REPLACEMENT PARTS. USE OF ANY OTHER PARTS

COULD CAUSE INJURY OR DEATH. REPLACEMENT PARTS ARE ONLY AVAILABLE DIRECT FROM THE FACTORY AND MUST BE INSTALLED BY A QUALIFIED SERVICE AGENCY.

pARTS ORDERING INFORMATION:

pURCHASING: Accessories may be purchased at any Mr. Heater local dealer or direct

from the factory

FOR INFORMATION REGARDING SERVICE

Please call Toll-Free 800-251-0001 www.mrheater.com

Our ofce hours are 8:30 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

Enerco Group, Inc. warrants its heaters and accessories to be free from defects in material and workmanship for a period of 1 year from date of purchase. Enerco Group, Inc. will repair or replace this product free of charge if it has been proven to be defective within the 1-year period, and is returned at customer expense with proof of purchase to Enerco Group, Inc. within the warranty period.

Enerco Group, Inc. reserves the right to make changes at any time, without notice or

obligation, in colors, speciﬁcations, accessories, materials and models.

ENERCO GROUP, INC., 4560 W. 160TH ST., CLEVELAND, OHIO 44135 • 216-916-3000

Mr. Heater and Portable Buddy are registered trademarks of Enerco Group, Inc.

Mr. Heater MH4B | Base Camp MH4BC Operating Instructions and Owner’s Manual

8

CSA 4.98

U.S.

06/08 15125 Rev. A

Mr. Heater MH4B, MH4BC User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual