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Enerco MHIR30LPT Electric Heater User Manual

1. Make sure the equipment shutoff valve is fully open Push in gas control knob and slightly turn clockwise to the OFF position see figure 19 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 Push in and turn control knob counterclockwise to PILOT IGN Press in control knob for five 5 seconds Note The first time that the heater is operated after connecting the gas supply the control knob should be depressed for about 30 seconds This will allow air to bleed from the gas system ignitor Button Control Knob Figure 19 With control knob pressed in push down and release the ignition button This will light pilot If needed keep pressing igniter button until pilot lights Keep control knob pressed in for 30 seconds after lighting pilot After 30 seconds release control knob Ignitor Electrode Thermocouple Pilot Burner Figure 20 If pilot does not stay lit refer to Troubleshooting pages 14 amp 15 Also contact a qualified service person of gas supplier for repairs If control knob does not pop up when released contact a qualified service person or gas supplier for repairs m Installation instructions and Owner s Manual 8 When the pilot is lit turn control Know counter clockwise to heating level The main burner should light 9 To select the
2. 10 Inches of Water Inlet Gas Pressure Maximum 14 Inched of Water 14 Inched of Water 14 Inched of Water Inlet Gas Pressure Minimum 11 Inches of Water 11 Inches of Water 11 Inches of Water Electrical Rating Tag aoe 1D Tapy 60Hz 1 Burners Orifice nozzles Thermostatic Control 3 2 es Clearances inches mm Top Sides Floor min to top of carpet Fabric flammable objects 36 915 BTU Available 30 000 Type of Gas ignition Pressure Regulator Setting inlet Gas Pressure Maximum Inlet Gas Pressure Minimum Electrical Rating Burners Orifice nozzles SS Thermostatic Control Clearances inches mm a ee Top Sides Floor min to top of carpet Fabric flammable objects 36 915 36 915 36 915 Installation instructions and Owner s Manual 70575 Rev C 8 05 REPLACEMENT PARTS Note use only original replacement parts This will protect you warranty coverage for parts replaced under warranty PARTS UNDER WARRANTY Contact authorized dealer from whom you purchased this product If they are unable to supply original replacement part s call the number on back of manual When contacting your dealer have ready e Your name e Your address e Model and serial numbers of your heater e How heater was malfunctioning e Type of gas used propane LP e Purchase date Usually we will ask you to return the defective part to the factory PARTS NOT UNDER WARRANTY Contact authorized dealer of this
3. IMPORTANT Vent free heaters add moisture to the air Although this is beneficial installing heater in rooms without enough ventilation air may cause mildew to form from too much moisture See Fresh Air for Combustion and Ventilation pages 3 through 5 INSTALLATION NOTICE This heater is intended for the use as supple mental heat Use this heater along with your primary heating system Do not install this heater as your primary heat source If you have a central heating system you may run system s circulating blower while using heater This will help circulate the heat throughout the house In the event of a power outage you can use this heater as your primary heat source for the duration of the outage N WARNING A qualified service person must install heater Follow all local codes CHECK GAS TYPE Use only LP gas If your gas supply is not LP gas do not install heater Call dealer where you bought heater for proper type heater THIS INSTALLATION REQUIRES Before installing heater make sure you have the items listed below e Piping check local codes e Sealant resistant to LP_Gas e Equipment shutoff valve e Ground joint union e Test gauge connection e Sediment trap e Tee joint e Pipe wrench A CSA AGA certified equipment shutoff 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 See Accessories page 1
4. MODELS BF20LPT BF3SOLPT IR2Z0LPT and IR3OLPT These heaters have a control valve with a thermostat sensing bulb This results in the greatest heater comfort and may result in lower bills LOCAL CODES Install and use heater with care Installation must conform to local codes or in the absences of local codes use the latest edition of National Fuel Gas Code ANSI Z2223 1 NFPA 54 UNPACKING 1 Remove heater from carton 2 Remove all protective packaging applied to heater for shipment 3 Check heater for any shipping damage If heater is damaged promptly inform dealer where you bought heater FRESH AIR FOR COMBUSTION AND VENTILATION ts WARNING This heater shall not be installed in a confined space or unusually tight construction unless provisions are provided for adequate com bustion and ventilation air Read the following instructions to insure proper fresh air for this and other fuel burning appliances in your home ESTABLISHING ADEQUATE VENTILATION The following are excerpts from National Fuel Gas Code NFPA 54 ANSI 2223 1 Section 5 3 Air for Combustion and Ventilation All spaces in homes fall into one of the three following ventilation classifications 1 Unusually Tight Construction 2 Unconfined Space 3 Confined Space This heater must not be installed in a confined space or unusually tight construction unless provisions are provided for adequate combustion and ventilation air The information
5. all such costs related to repairing a defective heater will be the responsibility of the owner TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE OF THE PRODUCT THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIES AND LIMITS THE DURATION OF ANY AND ALL IMPLIED WARRANTIES OF MER CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO TWO 2 YEARS OF ALL COMPO NENTS FROM THE FIRST DATE OF PURCHASE AND ENERCO GROUP INC S LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND ENERCO GROUP INC SHALL NOT BE LIABLE FOR ANY OTHER DAMAGES WHATSOEVER INCLUDING INDIRECT INCIDENTAL OR CON SEQUENTIAL DAMAGES Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation on incidental or consequential damages so the above limitation on implied warranties or limitation on dam ages may not apply to you This warranty gives you specific legal rights and you may also have other rights that very from state to state Always specify model and serial number when communication with the factory ENERCO GROUP INC 4560 W 160TH ST CLEVELAND OHIO 44135 216 881 5500 Toll Free Number 1 800 251 0001 www mrheater com Mr Heater is a registered trademarks of Enerco Group Inc ANSI 221 11 2a 2003 2005 Enerco Mr Heater All rights reserved Installation instructions and Owner s Manual 70575 Rev C 8 05
6. combustion enters the heater 5 If heater shuts off do not relight until you provide fresh outside air If heater keeps shutting off it requires servicing 6 Turn off and unplug heater and let cool before servicing Only a qualified service person should service and repair heater 7 Do not run heater e Where flammable liquids or vapors are used or stored e During dusty conditions 8 Before using furniture polish wax carpet cleaner or similar products turn heater off If heated the vapors from these products may create a white powder residue within burner box or on adjacent walls or furniture 9 Do not use heater if any part has 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 10 Operating heater above elevations of 4 500 feet could cause pilot ODS to shutdown heater 11 Always run heater with control knob in a locked position Never set control knob between locked positions Poor combustion and higher levels of carbon monoxide may result if control knob is left between locked positions DANGER Carbon monoxide poisoning may lead to death Carbon Monoxide Poisoning Early signs of carbon monoxide poisoning resemble the flu with headaches dizziness or nausea If you have these signs the heater may not be working properly Get fresh air at once Have heater serviced Some
7. connection CAUTION Never connect heater directly to the Propane supply This heater requires an external regulator not supplied Install the external regulator between the heater and Propane LP supply The installer must supply an external regulator The external regulator will reduce the incoming gas 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 pipe of larger enough diameter to allow proper gas volume to heater If pipe is too small undue loss of pressure will occur Installation must include an equipment shutoff valve union and plugged 1 8 NPT tap Locate NPT tap within reach of test gauge hookup NPT tap must be upstream from heater see figure 12 a C Pressure Regulator TT 3 8 NPT Pipe Nipple Fl Heater Ltt Cabinet Ground Joint Union La Test Gauge Equipment Connection Shutoff Valve Tee Joint Reducer Bushing From Gas Meter to 1 8 NPT 4 W C to 10 5 ea a W C Pressure i ug lap O pK Tee Joint S d iors Pipe Nipple Yea men eg Trap T Cap 3 Minimum Figure 12 A CSA AGA certified equipment shutoff valve with 1
8. desired heat level turn the tem perature setting knob counterclockwise to between 1 amp 7 THERMOSTAT CONTROL OPERATION FOR IR20LPT IRSOLPT The thermostatic control used simply turns on and off the burner FOR BF20LPT BF30LPT The thermostatic control used modulates the flame size as the temperature gets closer to set point then it turns off the burner upon reaching temperature The burner will cycle back on when room temperature drops below the set temperature The control knob can be set to any heat level between 1 and 7 Selecting the HI setting will cause the burner to remain on Note The thermostat sensing bulb measures the temperature of air near the heater cabinet This may not always agree with room temperature depending on housing construction insulation location room size open air temperature etc Frequent use of your heater will let you determine your own comfort levels TO TURN OFF GAS TO APPLIANCE Shutting Off Heater 1 Turn control knob clockwise to the OFF posi tion 2 Turn off all electrical power to the appliance if servicing is to be preformed 3 Turn off equipment shutoff valve SHUTTING OFF BURNER ONLY PILOT STAYS LIT 1 Turn control knob clockwise to the PILOT IGN position INSPECTING BURNER Check pilot flame pattern and burner flame pattern often PILOT FLAME PATTERN Figure 21 show a correct pilot flame pattern Figure 22 shows an incorrect pilot flame pattern The incor
9. factory We reserve the right to amend these specifications at any time without notice The only warranty appli cable is our standard written warranty We make no other warranty expressed or implied Enerco Group Inc warrants this product to be free from defects in materials and components for two 2 years from the date of first purchase provided that the product has been properly installed operated and maintained in accordance with all applicable instructions To make a claim under this warranty the Bill of Sale or cancelled check must be presented The warranty is extended only to the original retail purchaser This warranty covers the cost of part s required to restore the heater to proper operating condition and an allowance for labor when provided by an Enerco Group Inc Authorized Service Center Warranty part s MUST be obtained through authorized dealers of this product and or Enerco Group Inc who will provide original factory replacement parts Failure to use original factory parts voids this warranty The heater MUST be installed by a qualified in staller 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 lack of proper maintenance or defects caused by improper installation Travel diagnostic cost labor transportation and any and
10. on pages 3 through 5 will help you classify your space and provide adequate ventilation Unusually Tight Construction lf 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 continuous water vapor retarder with a rating of one perm 6 x 10 kg per pa sec m or less with openings gasketed or sealed and b Whether stripping has been added on openable windows and doors and c Caulking or sealants are applied to areas such as joints around windows and door frames between wall ceiling joints between wall panels at penetra tions for plumbing electrical and gas lines and at other openings If you home does not meet all of the three criteria above see Determing the Type of Heater Location Space page 4 Confined Space and Unconfined Space The National Fuel Gas Code NFPA 54 ANSI 2223 1 defines a confined space as a space whose volume is less than 50 cubic feet per 1 000 Btu per hour 4 8 m per kW of the aggregate input rating of all appliances installed in that space and an unconfined space as a space whose volume is not less than 50 cubic feet per 1 000 Btu per hour 4 8 m per kW of the aggregate input rating of all appliances installed in that space Rooms communicating directly with the space in which the a
11. people are more affected by carbon monoxide than others These include pregnant women persons with heart or lung disease 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 safe and proper operation of this heater 2 Installation instructions and Owner s Manual 70575 Rev C 8 05 Product Features ignitor Button Control Knob Burners Heater Cabinet Front Panel Figure 1 SAFETY DEVICE This heater has a pilot with an Oxygen Depletion Sensor ODS safety shut off system The ODS pilot shuts off the heater if there is not enough fresh air IGNITION SYSTEM PIEZO BF10LP IR10LP The heater is equipped with a piezo manual ignitor This system requires no matches batteries or other source to light heater Electronic BF20LPT BF30LPT IR2ZO0LPT IRSOLPT The heater is equipped with an electronic manual ignitor This system requires no matches or other source to light heater but does require one AA battery to operate ignitor To install or replace battery unscrew the ignitor cap red button insert battery and replace cap THERMOSTATIC CONTROL ON THERMOSTAT
12. 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 Pushin gas control know slightly and turn counterclockwise to PILOT IGN and depress for five 5 seconds Note The first time that the heater is operated after connecting the gas supply the control knob should be depressed for about 30 seconds This will allow air to bleed from the gas system 6 Pushin control knob and rotate control knob back to OFF position then rotate counterclock wise to PILOT IGN position This will light pilot If needed gently keep rotating control knob back and forth while depressed until pilot lights 7 Keep control knob depressed in for ten 10 seconds after lighting pilot If pilot goes out repeat steps 4 5 6 and 7 e If pilot does not stay lit refer to Troubleshooting pages 14 amp 15 Also contact a qualified service person or gas supplier for repairs e f control knob does not pop up when released contact a qualified service person or gas supplier for repairs 8 FOR IR10LP When the pilot is lit turn the control knob to LO position to light heater Leave on LO position until first burner tile has turned bright red FOR BF10LP When the pilot is lit turn the control knob to HI position to light heater 9 FOR IR1
13. walls concrete or masonry drill at least 1 deep Fold wall anchor as shown in figure 8 below Figure 8 Insert wall anchor wings first into hole Tap anchor flush to wall For thin walls 1 2 or less insert red key into wall anchor Place mounting bracket onto wall Line up holes on each end of bracket with wall anchors Insert mounting screws through bracket and into wall anchors Tighten screws until mounting bracket is firmly fastened to wall Placing Heater on Mounting Bracket 1 Locate two horizontal slots on back pane of heater see figure 19 Place heater onto mounting bracket Slide horizontal slots onto stand out tabs on mounting bracket Horizontal Slots Mounting Bracket mounted to wall Figure 9 Installing Bottom Mounting Screws 1 Locate two bottom mounting holes These holes are near bottom on back panel of heater see figure 10 Figure 10 2 Mark 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 using Anchor If installing bottom mounting screw into wall stud drill holes at marked locations using 9 64 drill bit 5 Re place heater onto mounting bracket 6 Place spacers between bottom mounting holes and wall anchor or drilled hole 7 Hold spacer in place with one hand With the other hand insert mounting s
14. 0LP After first burner tile has turned bright red adjust heat output by turning control knob to desired position LO or HI Do not operate heater between locked positions FOR BF10LP After flame is established see Burner Flame Pattern Page 12 on HI adjust heat output by turning control Knob to desired position LO or HI Do not operate heater between locked positions Control Knob Low HIGH A OFF Figure 16 Ignitor Electrode Thermocouple Pilot Burner Figure 17 CAUTION Do not try to adjust heating level by using equipment shutoff valve N WARNING When running heater set control knob at LO or HI locked positions Poor combustion and higher levels of carbon monoxide may result if heater is operated with control knob positioned between locked positions Control Knob DH or Figure 18 IMPORTANT Release downward pressure while turning control knob Control knob must be locked at the desired position Installation instructions and Owner s Manual 70575 Rev C 8 05 TO TURN OFF GAS TO APPLIANCE SHUTTING OFF HEATER 1 3 Turn control knob clockwise to the OFF posi tion Turn off all electrical power to the appliance if servicing is to be preformed Turn off equipment shutoff valve SHUTTING OFF BURNER ONLY PILOT STAYS LIT 1 Turn control knob clockwise to the PILOT IGN position OPERATING YOUR HEATER THERMOSTAT MODELS T
15. 7 LOCATING HEATER This heater is designed to be mounted on the wall The heater can also be located on a non combustible floor away from a wall by using the floor mounting stands included with the heater If installed on combustible flooring such as carpeting tile or other combustible material other than wood flooring the heater must be placed on a wood panel the full width and depth of the appliance For convenience and efficiency install the heater e Where there is easy access for operation inspection and service e Inthe coldest part of the room e If planning to use fan locate heater near an electrical outlet CAUTION If you install the heater in a home garage e Heater pilot and burner must be at least 18 inches above floor e Locate heater where moving vehicle will not hit it CAUTION This heater creates warm air currents These currents move heat to wall surfaces next to heater In stalling heater next to vinyl or cloth wall covering or oper ating heater where impurities such as tobacco smoke aromatic candles cleaning fluids oil or kerosene lamps etc are present in the air may discolor walls A WARNING Never install the heater In a bathroom In a bedroom IR20LPT IR30LPT BF20LPT or BF30LPT In a recreational vehicle Where curtains furniture clothing or other flammable objects are less than 36 inches from the front top or sides of the heater As a fireplace insert In high traffic ar
16. 8 NPT tap is an acceptable alternative to test gauge connection Purchase the CSA AGA certified equip ment shutoff valve from your dealer See Accessories page 17 IMPORTANT Install an equipment shutoff valve in an accessible location The equipment shutoff valve is for turning on or shutting off the gas to the appliance Apply pipe joint sealant lightly to male threads This will prevent excess sealant from going into pipe Excess sealant in pipe could result in clogged heater fuel train CAUTION Use pipe joint sealant that is resistant to LP Gas Install sediment trap in supply line as shown in figure 12 Locate sediment trap where it is within reach for cleaning Asediment trap traps moisture and contami nants This keeps them from going into heater If sediment trap is not installed or is installed improperly heater may not 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 N 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 1 2 psig 3 5kPa 1 Disconnect appliance with its appliance main gas valve control valve and
17. 9 7039 70349 Gas Instruction decal f 1 7os50 70350 70350 70350 lade warning label __ 1 Not sold separately Must purchase Assembly Items not shown M l k k lA A A ee e Installation instructions and Owner s Manual 70575 Rev C 8 05 NON Thermostat models MHIR10LP MHBF10LP TSIR10LP TSBF10LP IR10LP BF10LP PARTS LIST Non Thermostat model MHIR10LP MHBF10LP TSIR10 LP TSBF10LP This list contains replacement parts used in your heater When ordering parts follow the instructions listed under Replacement Parts on page 17 of this manual IR10LP BF10LP 17 1 2 13 1 4 3 1 3 3 34 zosto Reflector Bottom Panel __ _ _ _ 7 s6 RIT Reflector Blue Flame Spacer Panel e 7o21 70821 Valve Mounting bracket 1 e 7o23 70824 Vave PiezoAssemby 1 ao 7o85 Back Plate oo O a 7 lass a5 f ST Glass Mounting Brackett 21 oes ODSmountngbracket S 271 70363 Gileg FIR ara 70864 Onfice 10 BEF T 35 7oss6 racket Top Plenum Assembly Et Installation instructions and Owner s Manual 70575 Rev C 8 05 PART NO DESCRIPTION AIAJ MIO 38 ao a2 ee I ee I ee Item Not Shown Must purchase assembly 23 Installation instructions and Owner s Manual WARRANTY INFORMATION Keep this warranty Model Serial No Date Purchased Always specify model and serial numbers when communication with the
18. SIR20LPT TSIRSOLPT TSBF20LPT TSBFS3SOLPT MHIR20LPT MHIRSOLPT MHBF20LPT MHBFSOLPT FOR YOUR SAFETY READ BEFORE LIGHTING AN 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 which must be lighted by hand When lighting the pilot follow these instructions exactly 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 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 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 underwater LIGHTING INSTRUCTIONS 1 STOP Read the all safety information included with and on the side of heater
19. _3 INSTALLATION INSTRUCTIONS Min Heatep AND OWNER S MANUAL 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 UNVENTED LP GAS FIRED ROOM HEATER Blue Flame Heaters Plaque Heaters Model Burn Rate Model Burn Rate MHBF10LP TSBF10LP 10 000 Btu hr MHIR10LP TSIR10LP 10 000 Bitu hr MHBF20LPT TSBF20LPT 20 000 Btu hr MHIR2Z0LPT TSIR2Z0LPT 20 000 Btu hr MHBFS0LPT TSBF30LPT 30 000 Btu hr MHIR30LPT TSIRSOLPT 30 000 Btu hr MHBF20LPT TSBF20LPT TSBF30LPT Ly TR 25A aan MHIR3OLPT MHIR10LP TSIRSOLPT TSIR20LPT TSIR10LP A WARNING 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 Do not store 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 an electrical switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Installation and service must be performed by a q
20. acket 1 Tape mounting bracket to wall where heater will be located Make sure mounting bracket is level For wall stud mounting locate one end of the mounting bracket over a wall stud WARNING Maintain minimum clearances shown in figure 7 If you can provide greater clearances from the floor and joining wall 2 Mark screw locations on wall see figure 7 3 Remove tape and mount bracket from wall 6 1 2 Min 10 000 BTU 10 1 4 min 20 000 30 000 BTU I wa K C H UT TT A 12 9 64 Sm 17 1 2 Min Mark mounting hole locations l Adjoining Wall and drill holes where indicated Allow for minimum clearances Figure 7 Attaching to Wall Stud For attaching mounting 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 between studs or solid walls concrete or ma sonry Note Wall anchors mounting screws and spacer are in hardware package The hardware package Is provided with heater 6 Installation instructions and Owner s Manual 70575 Rev C 8 05 Drill holes at marked locations using 5 16 drill bit For solid
21. crew through bottom mounting hole and spacer Place tip of screw in opening of wall anchor or drilled hole 8 Tighten both screws until heater is firmly secured to wall Do not over tighten Note Do not re place front panel at this time Re place front panel after making gas connections and checking for leaks FLOOR MOUNTING AWAY FROM WALL eA Figure 11 Installing Support Feet see figure 11 1 Lay heater onto table on its back with bottom edge overhanging table edge 2 Securely attach feet to bottom of heater using 2 self tapping screws each Note Feet should have long end going out the front of heater and the edge coinciding with side of heater If feet overhang side of the heater switch leg location 3 Place heater on non combustible surface see Locating Heater above before proceeding with gas connection If this will be a permanent location heater may be locked into position using anchoring holes in mounting feet Note Use of floor mounting feet will require you to use a 3 8 NPT street elbow to make gas connec tion CONNECTING TO GAS SUPPLY N WARNING A qualified service person must connect heater to gas supply Follow all local codes 7 Installation instructions and Owner s Manual N WARNING This appliance requires a 3 8 NPT National Pipe Thread inlet connection to the pressure regulator Use of floor mounting feet will require you to use a 3 8 NPT street elbow to make gas
22. 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 e Do not try to light any appliance e Do not touch any electrical switch do not use any phone in your building e Immediately call you gas supplier from a neighbor s phone Follow the gas supplier s instructions e If you can not reach your gas supplier call the fire department 9 Installation instructions and Owner s Manual C Use only your hand to push in or turn the gas control knob Never use tools It 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 underwater 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 16 Note Knob cannot be turned from PILOT
23. e checked by local gas company 3 Air passageways on heater blocked 3 Observe minimum installation clearances see Figure 4 page6 4 Dirty or partially clogged burner orifice 4 Clean burner orifice see Cleaning and Maintenance on page 13 or replace burner orifice White powder residue forming 1 When heated vapors from furniture polis 1 Turn heater off when using furniture within burner box or on wax carpe cleaners etc turn into white poils wax carpet cleaner or similar adjacent walls or furniture powder residue products TROUBLESHOOTING WARNING 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 neighbors phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department IMPORTANT Operating heater where impurities in air exist may create odors Cleaning supplies paint paint remover cigarette smoke cements and glues new carpet or textiles etc create fumes These fumes may mix with combustion air and create odors Heater produces a whistling noise when burner is lit 2 Air in gas line 1 Heater burning vapors from paint hair 1 Ventilate room Stop using odor causing Heater produces unwanted spray glues etc See IMPORTANT products while heater is running odors statement above 2 Gas leak See WARNING statement at L
24. eas In windy or drafty areas N WARNING Heater must be mounted to maintain the minimum clearances shown in Figure 4 If possible provide greater clearances from the floor ceiling and joining walls 5 Installation instructions and Owner s Manual Inn 36 min from ceiling 6 Min from 2 min to top surface of carpet tile or other combustible material Figure 4 FASTENING HEATER TO WALL Mounting Bracket The mounting bracket in located on the back panel of heater see figure 5 It has been taped there for ship ping Remove mounting bracket from back panel Mounting Bracket Figure 5 Removing Front Panel of Heater 1 Remove three screws on bottom front of front panel 2 Pull bottom of front panel forward then down see figure 6 Figure 6 Attaching Mounting Bracket to Wall Use holes on each end of mounting bracket to attach bracket to wall These holes 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 Attaching to Wall Stud This way is the best providing the strongest mounting in wood frame houses Attaching to Wall Anchor This way allows you to attach mounting bracket to hollow walls wall areas between studs or to solid walls concrete or masonry Decide which way best suits your needs Either method will provide a secure hold for the mounting br
25. entilation to an adjoining unconfined space you must provide two permanent openings one within 12 of the ceiling and one within 12 of the floor on the wall connecting the two spaces see options 1 amp 2 of fig 2 You can also remove door into adjoining room see options fig 2 Follow the National Fuel Gas Code NFPA 54 ANSI 2223 1 Section 5 3 Air for Combustion and Ventilation for required size of ventila tion grills or ducts ae Ventilation Gills into Adjoining Room Ventilation Or remove Gills into door into Adjoining all wa Gouda Room Option 3 Option 1 N WARNING Rework worksheet adding the space of the adjoining unconfined space The combined space must have enough fresh air to supply all appliance in both spaces 4 Installation instructions and Owner s Manual 70575 Rev C 8 05 VENTILATION AIR VENTILATION CRAWL SPACE Figure 3 Ventilation from Outdoors If necessary provide extra fresh air by using ventilation grills or ducts Connect these items directly to the outdoors or spaces open to the outdoors These include attics and crawl spaces Follow the National Fuel Gas Code NFPA 54 ANSI 2223 1 Section 5 3 Air for Combustion and Ventilation for required size of ventilation grills or ducts IMPORTANT Do not provide openings for inlet or outlet into attic If attic has a thermostat controlled power vent heated air entering the attic will activate the power vent
26. equipment shutoff valve from gas supply piping system Pres sures in excess of 1 2 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 1 2 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 Installation instructions and Owner s Manual 70575 Rev C 8 05 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 Ope
27. ing it must be replaced prior to operating the heater WARNING Failure to keep the primary air opening s of the burner s clean may result in sooting and property damage CLEANING ODS PILOT AND BURNER e Use as vacuum cleaner pressurized air or small soft bristled brush to clean CLEANING BURNER PILOT AIR HOLE INLET We recommend that you clean the unit ever 2 500 hours of operation or every three months We also recom mend that you keep the burner tube and pilot assembly clean and free of dust and dirt To clean these parts we recommend using compressed air no greater than 30 psig This can be done by using a vacuum cleaner in the blow position using compressed air in a can please follow the directions on the can If you don t follow directions on the can you could damage the burner or pilot assem bly In addition the directions that follow 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 flame comes out of the pilot assembly see figure 25 With the unit off lightly blow air through the air inlet hole You may blow through a drinking straw if com pressed air is n
28. n 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 Jo Turn OFF Gas to Appliance page 12 for thermostat models and page 11 for non thermostat models 9 Replace lower front panel open Equipment Shutoff Valve Figure 13 Control Valve Gas Meter Figure 14 ELECTRICAL WIRING DIAGRAM SWIT TEHE OPERATED L E OU THERMOMETER BE HE E o DOUBLE THROW TRANSFORMER Figure 15 If any original wiring as supplied with the heater must be replaced it must be replaced with tyoe AWG 105 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 MHIR10LP MHBF10LP TSIR10LP TSBF10LP FOR YOUR SAFETY READ BEFORE LIGHTING N WARNING If you do not follow these instructions exactly a fire or explosion may result causing oroperty
29. near the appliance Never place any objects on the heater Due to high temperatures heater should be kept out of traffic and away from furniture and draperies Surface of heater becomes very hot when running Keep children and adults away from hot surfaces to avoid burns or clothing ignition Heater will remain hot for a time after shut down Allow heater surfaces to cool before handling Young children should be carefully supervised when they are in the same room with heater Make sure grille guard is in place before running heater If screen or grille guard is removed for servicing it must be replaced prio to operating the heater Keep the appliance area clear and free from combustible materials gasoline and other flammable vapors and liquids PRECAUTIONS 1 MHBF 10 LP and MHIR 10LP may be installed in a bedroom but not a bathroom or any place where a strong wind would shut down the appliance 2 MHBF 20 LPT MHBF 30 LPT MHIR 20 LPT and MHIR 30 LPT may not be installed in a bedroom or bathroom or any place where a strong wind would shut down the appliance 3 This heater needs outside ventilation air to run properly The Oxygen Depletion Sensor ODS safety shutoff system shuts down the heater if not enough fresh air is available See Fresh Air for Combustion and Ventilation page 3 4 Keep all air openings in heater clear free of debris or any blockage This will insure that enough air for proper
30. o6s7 7063770637 70637 Thermostat Valve Mounting bracket 1 8 70640 70640 70640 70640 Thermostat Valve assembly 1 9 70641 70641 70641 70641 llama Module Mounting Bracket 1 10 7oeaz fsa Back Plate a da f oeae lass i a5 f 7oea7 tt 70649 Glass Mounting Bracket 1 18 7oeso 7oe52 Gas Manifold 1 19 7o651 ft l Gas Manifold Mounting Bracket 1 21 zo655 70655 ODS mounting bracket a R H T T S 2i 2 70360 Orifice 30 BF 1 G9 Installation instructions and Owner s Manual ITEM PART NO DESCRIPTION 281 vost rifice oR o ae 28 2 fossa tific 20 BE 35 7oe75 7o76 Bracket Top Plenum Assembly 36 7oe75 e768 Bracket Bottom Plenum Assembly a o o o S e S S 38 zoe77 fT fzoe77 Burner Plaques 30 39 7oe77_ e777 BumerPlaques 20 4o 7oe7a seg i Plaque Gasket 30 4s voe7s 7o78 Plaque Gasket 20 OS S eee eee eee a S ee ee e re voeso oso S BIR Burner gas tube voodoo Middle burner gas tube gt 7o91 7o69 Leftburnergastube _ 1 70695 70695 70696 70696 ODS Gas Tube Assembly 7os97 7os97 _ 7o697 70697 Regulator to Thermostat Valve tube Ass y 1 Tag ioe Thermostat Valve to Manifold tube __ 1 70341 7o34 70341 70341 ignitor Wire S veo oso GasManifoaNut 1 gt 7osa2 7034270342 70342 Hardwarekit S o 70343 70349 70345 70346 CSA AGAlabel 1 Tag 7osa
31. ocate and correct all leaks see Checking l Gas Connections page 8 Heater shuts off in use ODS 1 Not enough fresh air is available Open window and or door for ventilation operates 2 Low line pressure Contact local gas company 3 ODS pilot is partially clogged Clean ODS pilot see Cleaning and Maintenance Cas odor even wien contol 1 Gas leak See WARNING statement at Locate and correct all leaks see Checking knob is in OFF position top of page ee COMEEON gt page S 2 Control valve is defective Replace control valve 1 Foreign matter between control valve and Take apart gas tubing and remove foreign burner matter Gas odor during combustion 2 Gas leak See WARNING statement at Locate and correct all leaks see Check op of page ing Gas Connections page 8 Heater produces a cliking 1 Metal expanding while heating or contract This is common with most heaters If noise eh ate just after butner is ing while cooling is excessive contact qualified service it or shut_o L UT Moisture condensation noticed 1 Not enough combustion venitlation air 1 Refer to Fresh Air of Combustion and on windows Ventilation page 3 through 5 Installation instructions and Owner s Manual SPECIFICATIONS IR10 LP IRZO0LPT IRB0LPT BTU Available 10 000 20 000 30 000 Type of Gas LP Gas Only LP Gas Only LP Gas Only Ignition Battery ignitor 1 AA Battery ignitor 1 AA Pressure Regulator Setting 10 Inches of Water 10 Inches of Water
32. ot available Pilot Air Inlet Hole Pilot Assembly Figure 25 CLEANING HEATER CABINET Air passageways e Use a Vacuum cleaner or pressurized air to clean Exterior e Use a soft cloth dampened with a mild soap and water mixture Wipe the cabinet to remove dust 13 Installation instructions and Owner s Manual TROUBLESHOOTING NOTE All troubleshooting items are listed in order of operation and likely occurrence WARNING Only a qualified service person should service and repair heater CAUTION Never use a wire needle or similar object to clean ODS pilot This can damage ODS pilot unit Make sure grille guard is in place before running heater If screen or grille guard is removed for servicing it must be replaced prior to operating the heater OBSERVED SYMPTOM POSSIBLE CAUSE REMEDY When ignitor button is pressed 1 Ignitor electrode positioned wrong Reposition electrode in there is no spark at pilot _ ignitor electrode is broken Replace electrode Ignitor electrode not connected to ignitor Reconnect ignitor cable Ignitor cable pinched or wet Free ignitor cable if pinched by any metal or tubing Keep ignitor cable dry Broken ignitor cable Replace ignitor cable Bad Piezo ignitor Replace control valve Piezo is part of control valve on 10K units Low Battery Replace batter ODS pilot lights but flame goes 1 Gas Supply turned off or equipment Turn on gas supply turn off or open
33. ppliances are installed through openings not furnished with doors are considered a part of the unconfined space 3 Installation instructions and Owner s Manual Adjoining rooms are communication only if there are doorless passageways or ventilation grills between them DETERMINING THE TYPE OF HEATER LOCATION SPACE Use this method to determine if you have a confined or unconfined space Note the space includes the room in which you install heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms 1 Find the volume of the space by multiplying room length x width x height Example Space size 18ft length x 18ft width x 8ft height 2592 If additional ventilation to adjoining room is supplied with grills or openings add the volume of these rooms to the total volume of the space 2 Divide the space volume by 50 cubic feet to deter mine the maximum Btu hr the space can support Example 2592 cu ft volume of space 50 cu ft 51 8 or 51 800 maximum Btu hr the space can support N WARNING If the area in which the heater may be operated in smaller that that defined as an uncon fined space or if the building is of unusually tight construction provide adequate combustion and ventilation air by on the methods described in the National Fuel Gas Code NFPA 54 ANSI 2223 1 Section 5 3 or applicable local codes 3 Add the Btu hr of all the fuel burning appliance
34. product If they can t supply original replacement part s call Enerco 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 information You can also write to the address listed on the front page of this manual Equipment Shutoff Valve For all models Equipment shutoff valve with 1 8 NPT tap G7 Installation instructions and Owner s Manual Thermostat models MHIR20LPT MHIRSOLPT MHBF20LPT MHBFSOLPT TSIR20LPT TSIRSOLPT TSBF20LPT TSBF3SOLPT D l CO LL aa E f A 2 l N thy S Y Installation instructions and Owner s Manual 70575 Rev C 8 05 IRSOLPT PARTS LIST Thermostat models MHIR20LPT MHIRSOLPT MHBF20LPT MHBF30LPT TSIR20LPT TSIR3OLPT TSBF20LPT TSBF30LPT This list contains replacement parts used in your heater When ordering parts follow the instructions listed under Replacement Parts on page 17 of this manual TEM PART DESCRIPTION IR2OLPT a fzosoo 70600 7060s 70605 Cabinet assembly te a C C G r e 9 34 7oei2 tL Reflector Bottom Panel 36 7o621 70631 Reflector Blue Flame Spacer Panel 1 6 z
35. rect 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 e Turn heater off see Jo Turn OFF Gas to Appliance page 11 for non thermostat models or page 12 for thermostat models e See Troubleshooting pages 14 and 15 Pilot Burner rms SO WE Figure 22 BURNER FLAME PATTERN Figure 23 show a correct burner flame pattern Figure 24 shows an incorrect burner flame pattern If burner flame pattern is incorrect as shown in Figure 24 e Turn heater off see To Turn OFF Gas to Appliance page 11 for non thermostat models or page 12 for thermostat models e See Troubleshooting pages 14 and 15 eS ROT 7 E G 1 2 Glass Height Figure 24a 12 Installation instructions and Owner s Manual 70575 Rev C 8 05 Yellow Tipping 1 2 Glass Height Figure 24b CLEANING AND MAINTENANCE T WARNING Turn off heater and let cool before servicing CAUTION You must keep control areas burner and circulation air passageways of heater clean Inspect these areas of heater before use Have the heater inspected yearly by a qualified service person Heater may need more frequent cleaning due to excess lent from carpeting bedding material pet hair etc Make sure grille guard Is in place before running heater If screen or grille guard is removed for servic
36. s in the space such as Vent free heater Gas water heater Gas furnace Vented gas heater Gas fire place logs and Other gas appliances Do not include direct vent gas appliances Direct vent draws combustion air from the outdoors and vents to the outdoors Example Gas water heater 40 000 Btu hr Vent Free Heater 20 000 Btu hr Total 60 000 Btu hr 4 Compare the maximum Btu hr the space can support with the actual amount of Btu hr used Example 51 800 Btu hr maximum Btu hr the space can support 60 000 Btu hr Actual amount of Btu hr used The space in the above example is a confined space because the actual Btu hr used is more than the maximum Btu hr the space can support You must provide additional fresh air Your options are as follows A Rework worksheet and the space of 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 Bitu hr the space can support the space is an uncon fined 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 v
37. shutoff valve closed equipment shutoff valve closed out when control knob is l l quip released Control knob not fully pressed in while Fully press in control knob while pressing pressing ignition button ignition button Air in gas line when installed Continue holding down control knob Repeat ignition operation until air is removed ODS pilot is clogged Clean ODS pilot see Cleaning and Maintenance page 13 Gas regulator setting is not correct Replace gas regulator Control knob not in pilot position Turn Control knob to pilot position When ignitor button is pressed Control knob not fully pressed in Press in control knob fully in there is a spark at the ODS 2 Control knob not presed in long enough _ After ODS pilot lights keep control knob pilot but no ignition pressed in for 30 seconds Equipment shutoff valve not fully open Fully open equipment shutoff valve Thermocouple connection loose at Hand tighten thermocouple nut until snug control valve and then tighten 1 4 turn more Pilot flame not touching thermocouple 5 which allows thermocouple to cool causing pilot flame to go out This problem could be caused by one or both of the following a Low gas presure a Contact local gas company b Dirty or partially clogged ODS pilot b Clean ODS pilot see Cleaning and Maintenance page 13 Thermocouple damaged Replace thermocouple Control viave damaged Replace Control valve B
38. ualified installer service agency or the gas supplier This is an unvented gas fired heater It uses air oxygen from the room in which tt Is installed Provisions for adequate combustion and ventilation air must be provided Refer to Fresh Air for Combustion and Ventilation section on page 3 of this manual Improper installation adjustment alteration service or maintenance can cause Injury or property damage Refer to this manual for correct installation and operational procedures For assistance or additional information consult a qualified installer service agency or gas supplier ENERCO GROUP INC 4560 W 160 ST CLEVELAND OHIO 44135 216 916 3000 70575 Rev C 08 05 This appliance may be installed in an aftermarket permanently manufactured mobile home where not prohibited by local codes This appliance is only for use with the type of gas indicated on the rating plate This appliance is not convertible for use with any other A WARNINGS IMPORTANT Read this owner s manual carefully and completely before trying to assembly operate or service this heater Improper use of this heater can cause serious injury or death from burns fire explosion electrical shock and carbon monoxide poisoning N WARNING Do not use any accessory not ap proved for use with this heater N WARNING Any change to this heater or its controls can be dangerous Do not place clothing or other flammable material on or
39. urner does not light after Burner orifice is clogged Clean burner orifice see Cleaning and ODS pilot is lit Maintenance on page 13 or replace burner orifice Burner orifice diameter to small Replace burner orifice Inlet gas pressure is too low Contact local gas company Delayed ignition of burner Manifold pressure is too low Contact local gas company Burner orifice is clogged Clean burner orifice see Cleaning and Maintenance on page 13 or replace burner orifice Installation instructions and Owner s Manual 70575 Rev C 8 05 TROUBLESHOOTING CONT OBSERVED SYMPTOM POSSIBLE CAUSE REMEDY 1 Burner orifice is clogged or damaged 1 Clean burner orifice see Cleaning and Buner backfiring during Maintenance on page 13 or replace combustion burner orifice 2 Burner damaged 2 Replace burner 3 Gas regulator defective 3 Replace gas regulator 1 Plaque damaged 1 Replace buner Burner plaque s does not glow 2 Control knob set between locked posi 2 Turn control knob until it locks at desired Infrared Only tions setting 3 Inlet gas pressure is too low 3 Replace gas regulator Slight smoke or odor during 1 Residues from manufacturing process 1 Problem will stop after a few hours of initial operation operation 1 Turning control knob to HI position when 1 Turn control knob to LO position and let burner is cold warm up for a minute 2 Operate buner until air is removed from line have gas lin

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