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Enerco HST45 User's Manual

1. OPERATING INSTRUCTIONS 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 MR HEATER HEATSTAR Gas Fired Low Intensity Infrared Heaters approved for residential Garage Commercial Applications WARNING Improperinstallation adjustment alteration service or maintenance can cause injury or property damage Refer to this manual For assistance or additional information consult a qualified installer service agency or the gas supplier WHAT TO DO IF YOU SMELL GAS Open Windows DO NOT try to light any appliance DO NOT use electrical switches DO NOT use any telephone in your house Immediately call your local gas supplier from a neighbor s telephone Follow the gas supplier s instructions Do not touch any electrical switch do not use any phone in your building Installation and service must be performed by a qualified installer service agency or the gas supplier If you cannot reach your gas supplier call the Fire Department FOR YOUR SAFETY Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance WARNING If the information in these instructions are not followed exactly a fire or explosion may result causing property damage personal injury or lo
2. ATTENTION Risque de monoxyde de carbone L echappement du radiateur doit s effectuer a l exterieur Utillisez le materiel fourni Le non respect de ces consignes peut entrainer mort ou blessures Venting Codes The location size installation and termination of vents as well as the minimum required safe distances when penetrating combustible walls must comply with local codes and recommendations of the local gas company United States Refer to National Fuel Gas Code ANSI Z223 1 latest revision same as NFPA Bulletin 54 Canada Refer to Can 1 B149 1 Installation Codes for Gas Burning Appliance Non residential Installations Aircraft Hangars The MAT HST tube heater may be used in certain areas of aircraft hangars Installation in aircraft hangars must be in accordance with the following codes United States Refer to Standard for Aircraft Hangars ANSI NFPA 409 latest revision Canada Refer to Standard CGA B149 1 M91 Heaters in aircraft storage or service areas must be installed a minimum of 10 feet above the upper surface of wings or engine enclosures of the highest aircraft which may be housed in the hangar This should be measured from the bottom of the heater to the top of the wing or engine enclosure whichever is highest from the floor In other sections of aircraft hangars such as shops or office heaters must be installed a minimum of 8 feet above the floor Heaters installed in aircraft hangars
3. 12 Overhead structural members rafters beams etc are accessible for attaching the heater 13 Location must allow for adequate clearance around air openings into the combustion chamber Enerco Group Inc Gas Fired Low Intensity Infrared Heater Operating Instructions and Owner s Manual General Guidelines Residential Regardless of the venting arrangement that will be connected to the heater the following general guidelines for venting must be followed 1 Theinstallation must conform with local codes or in the absence of local codes with the National Fuel Gas Codes ANSI Z223 1 NFPA 54 Natural Gas and Propane Installation Code CSA BI49 1 for Canada 2 Appliance input ratings are based on sea level operation and need not be changed for operating up to 2 000 feet 609 9m elevation For operation at elevations above 2 000 feet 609 9m manufactured to specified deration condition for Canada and the United States 3 The appliance and its appliance main gas valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 2 psi 3 5kPa The appliance must be isolated from the gas piping system by closing equipment shutoff valve during pressure testing of the gas supply piping system at test pressures equal to or less than 2 psi 3 5kPa WARNING Materials and items when stored under this heater will be subjected to radiant heat and could be s
4. Carefully ream the pipe and tube ends to remove obstructions and burrs Use LP resistant joint compound on all threads Check the pipe and tube connections for leaks before placing heating equipment into service When checking for gas leaks use a soap and water solution never use an open flame A plugged 1 8 NPT tapping must be provided upstream of the gas supply to the heater The gas supply line connecting to the heater appliance should be such that it allows for some movement of the unit The appliance will go through expansion and contraction during a heating cycle Section 5 OPERATION Supplied by others Heater AWARNING WARNING If you do not follow these instructions exactly a fire or explosion may result causing property damage personal injury or loss of life SAFETYINSTRUCTIONS READ BEFORE OPERATION OPERATINGINSTRUCTIONST SY A This appliance does not have a pilot It is equipped with an ignition device which automatically lights the burner DO NOT try to light the burner by hand E BEFORE OPERATING 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 your gas supplier from a neighbor s phone Follow gas supplier s instructions i
5. Burner Box for F208851 F102850 HST 45NG Burner Box for F 108851 F102851 HST 45LP Burner Box for F 108851 F106250 MHT HST 45 Tube Set 06014 Hanger 06016 Hanger Clamp 06008 9 MHT HST 45 R eflector 06009 Reflector End Cap 03438 Tubulator inside tube ALL WARRANTY CLAIMS REQUIRE PROOF OF PURCHASE Enerco Group Inc Gas Fired Low Intensity Infrared Heater 23 Operating Instructions and Owner s Manual OPERATING INSTRUCTIONS HEATSTAR AND OWNER S MANUAL MR HEATER LE LELO 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 FOR INFORMATION REGARDING SERVICE OR PARTS Contact your local heating service technician or dealer FOR ADDITIONAL INFORMATION Please call Toll Free 800 251 0001 WWW mrheater com or WWW enerco com Our office hours are 8 30 AM 5 00 PM EST Monday through Friday Please have the model number serial number and date of purchase ready LIMITED WARRANTY The company warrants this product to be free from imperfections in material or workmanship under normal and proper use in accordance with instructions of The Company for a period of one year from the date of delivery to the buyer The Company at its option will repair or replace products returned by the buyer to the factory transportation p
6. any combustible i ai ee ee overhang 2 clearance thimble 9 clearance thimble required when flue pipe ne f If condensation in the flue is a problem the flue length should extends through be shortened or insulated combustible materials g For vent specifications all of the following conditions must be met The maximum equivalent length of vent pipe should be Double Wall carefully observed A safety switch in the heater is designed to Double wall vent run and shut the heater off before excessive flue restriction causes bad Double wall terminal end combustion bo Minimum Equivalent Length 5 feet of Pipe Roof or Building hang Maximum Equivalent Length 25 feet of Pipe bat of pulang Overt IR 0 Use the following correction factors to obtain the equivalent 8 to 10 Max length 418 Min 3 0 Min 2 1 Subtract 15 feet if the run is horizontal 5 2 Subtract 10 feet for an approved vent cap Ba 3 Subtract 10 feet for each elbow beyond 15 feet from the 6 0 Min amp heater 4 Subtract 15 feet for each elbow within 15 feet of the heater i a Limit the quantity of 90 elbows to two When vent pipe is in a horizontal run it must rise not less than 1 4 inch per foot from A flue 2 the start of the vent system towards the vent terminal A ag DUNE Wall 1 4 per foot for condensate drainage Clearance to be as specified Alternative Arrangements Optional on type B vent pipe Equipment for Venting Horizon
7. heater should be lifted from the carton at the same time The burner box should be lifted by gripping the bottom of the box The reflector end of the heater should be lifted using the rear moveable hanger Safety Thin sheet metal parts such as the reflector portion of the heater and the various venting components have sharp edges To prevent injury the use of work gloves is recommended The use of gloves will also prevent the transfer of body oils from the hands to the surface of the reflector Section 1 INTRODUCTION About The Heater The MHT HST 45 is a factory assembled gas fired low intensity heating system The system has been designed for easy installation and will provide years of economical operation and trouble free service Not only is infrared heat efficient it also provides the most comfortable conditions in open areas such as garages Gas Fired means it uses clean burning Natural or LP gas Low Intensity means that the radiant surface of the heat exchanger tube does not glow red Instead it operates at a lower temperature less than 1000 F and radiates energy at a lower intensity per square foot of radiating surface The lower temperature and intensity levels are within a range that is most effective in establishing and maintaining personal comfort levels An aluminum reflector directs the radiant energy downward to the occupied area Radiant refers to the energy radiated by the tube heater Because the energy is
8. in the form of infrared rays it does not directly heat the air Instead the rays heat objects such as the floor cars machines and people The warm objects in turn heat the air These combined features are the key to the exceptional comfort and fuel efficiency provided by the tube heater Available Accessories Vent Kit F102840 NAM 8 W D gt 2 3 x 2 Pipe 26GA 36 x 3 B Vent Gas Vent Top 3 Adj Wall Thimble Storm Collar 3 Elbow 1 Adj Roof Flashing 1 1 1 1 1 1 Enerco Group Inc Gas Fired Low Intensity Infrared Heater 3 Operating Instructions and Owner s Manual About The Heater Intake Vent Exhaust Vent D D 1 2 NPT mis P Burner Box ower Cord Rear View Front Fixed Hanger Reflector es gt RS Rear Movable Hanger Burner Box Contains the electrical components i e blower motor power transformer etc and gas distribution components i e gas valve etc that make the heater work There are no owner serviceable items contained in this box Front Fixed Hanger Provides rigid support and mounting surface for the reflector Holes are provided in the upper corners of the bulkhead to accommodate suspension hardware required for installation of the heater Reflector The reflector is made from formed aluminum and reflects the radiant energy downward to the space to be heated Heat Exchanger A U shaped tub
9. located above the terminal within a horizontal 6 inches 15 cm for appliances lt 10 000 Btuh 3 kW 12 inches 30 cm for appliances gt 10 000 Btuh 3 kW and lt 100 000 Btuh 30 kW 36 inches 91 cm for appliances gt 100 000 Btuh 30 kW Section 4 VENTING This appliance is certified under the ANS CSA Standard for Vented Gas Fired Space Heating Appliances In accordance with these standards all sidewall venting must conform to the supplied diagram for Vent Terminal Clearances which are stated for both U S and Canadian installations These clearances should be compared to but not less than those specified in the current ANSI Z223 1 NFPA 54 National Fuel Gas Code or CSA B149 1 Natural Gas and Propane Installation Code Clearances not covered in the table or above listed codes must comply with local installation codes and the requirements of your local gas supplier V WENT T RMEHAI ARR SUPPLY INLET AREA WHERE TERMINAL 15 MOT FERANTIED LL PO LE EY LLL D 3 US Installations2 12 inches 30 cm 6 inches 15 cm for appliances lt 10 000 Btuh 3 kW 9 inches 23 cm for appliances gt 10 000 Btuh 3 KW and lt 50 000 Btuh 15 kW 12 inches 30 cm for appliances gt 50 000 Btuh 15 kW distance of 2 feet 61 cm from the center line of the terminal r Clearance to outside corner G Clearance to inside corner ss siz center line extended above feet 4 5
10. m above the meter regulator assembl D ator assembl Clearance to nonmechanical air 6 inches 15 cm for appliances lt 6 inches 15 cm for appliances lt supply inlet to building or the 10 000 Btuh 3 kW 12 inches 30 10 000 Btuh 3 kW 9 inches 23 cm other appliance kW and lt 100 000 Btuh 30 kW and lt _ 50 000 Btuh 15 kW 12 36 inches 91 cm for appliances inches 30 cm for appliances gt E Clearance to unventilated soffit S o S SOS Clearance to each side of 3 GRR 91 cm within a height 15 vent outlet combustion air inlet to any cm for appliances gt 10 000 Btuh 3 for appliances gt 10 000 Btuh 3 kW gt 100 000 Btuh 30 kW 50 000 Btuh 15 kW K Clearance to a mechanical air 6 feet 1 83 m 3 feet 91 cm above if within 10 feet supply inlet 3 m horizontally L Clearance above paved 7 feet 2 13 m ki sidewalk or paved driveway located on public property M Clearance under veranda 12 inches 30 cm 7 porch deck or balcon In accordance with the current CSA B149 1 Natural Gas and Propane Installation Code In accordance with the current ANSI Z223 1 NFPA 54 National Fuel Gas Code A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings andserves both dwellings Permitted only if veranda porch deck or balcony is fully open on a minimum of two sides beneath the floor For clearances not specified in ANSI Z223 1 NFPA 54
11. must rise not less than 1 4 inch per foot from the start of the vent system towards the vent terminal 5 Joints between sections of piping shall be fastened by sheet metal screws or other approved means The seams along the length of the piping and the joints between sections of piping should be sealed to prevent a potential leakage of flue gas into building Use 100 RTV Silicone Rubber Adhesive sealant suitable for 500 F 6 All portions of the vent pipe shall be supported to prevent from sagging 7 When the vent pipe passes through areas where the ambient temperature is likely to induce condensation of the flue gasses the vent pipe should be insulated and a condensation drain should be provided 8 The minimum clearance to combustible materials for single wall flue pipe shall be 6 inches This may be reduced when the combustible material is protected as specified in the National Fuel Gas Code or the authority having jurisdiction 9 Single wall metal pipe shall not originate in any unoccupied attic or concealed space and shall not pass through any attic inside wall or concealed space or through any floor 10 A venting system shall terminate at least 3 feet 0 9m above any forced air inlet located within 10 feet 3 1m Vent Cap Leslie VersaCap 2 Min 2 Min 2 Min when no wall or parapet exist Flashing 2 Clearance Thimble Seal joint amp i annular space i Total Vent l 1 H Height V4 per f
12. or side of the MHT HST tube heater than the distances noted in the diagrams on the following page If you have any questions about the minimum required safe distances from combustibles or the associated diagrams please contact your installer Enerco representative or distributor of Enerco Technical Products during normal business hours which are Monday through Friday 8 15 a m to 4 45 p m Eastern Time Telephone 800 251 0001 or 216 916 3000 It is important to keep the minimum required safe distances from combustibles at all times to avoid death personal injury or property damage Clearances from vehicles parked beneath heaters must be maintained Signs should be posted to identify any possible violation of the clearance distances form the heater in the vehicle areas Maximum allowable stacking height in storage areas should be identified with signs or appropriate markings The illustrations and Table on the adjoining page specify the minimum required safe distances from combustibles Horizontal Installations NS I Note Dimension C indicates the minimum required safe distances from combustibles it DOES NOT indicate the required mounting height The minimum mount ing height is 7 feet except for aircraft hangars and public garages C 45 Tilted Installations 24 Min A SSS Approx A5 Es D F Note Dimension E indicates the E minimum required safe distances from combustible
13. thermostat a virage 3 Reglage le plus bas de tour pouvoir electrique a l appareil 4 Cet apparril est equipe avec un appareil d allumage qui allume automatiquement le bruleur Ne pas essayer d allumer le bruleur a la main 5 Eleve le controle panneau d acces 6 Pousser dans le bouton de controle de gaz Ic NOTE Le levier de soupape est le resort charge et tombera automatiquement 7 Attendre 5 minutes pour claircir hors le gaz de formi Si vous sentez alors le gaz L AARETI Suivre le B dans l information de surete au gauche d instructions Si vous sentez pas le gaz allez a l etape prochaine 8 Le bouton de controle de gaz de virage dans le sen inverse des aiquilles d une montre A SUR 9 Ramplacer le controle panneau d acces 10 Allume tout pouvoir electrique au appareil 11 Regler le thermostat au reglage desire 12 Si l appareil de chauffage n aperera pas suivra les instructions Toumer du Gaz L Appareil de chauffage et appelle votre fournisseur de d entretien ou gaz Levier en haut sur l positi Arrivee de gaz POUR COUPER L ALIMENTATION EN GAZ DU RADIATEUR 1 Reglent le thermostat a virage 2 Reglage le plus bas de tour pouvoir electrique a l appareil si le service va etre execute 3 Eleve le controle panneau d acces 4 Pousser dans le bouton de controle de gaz NOTE Le levier de soupape est le resort charge et tombera automatiquement 5 Ramplacer le controle panneau d acce
14. Bee a fs i Sh LE fy oa D 1 a Es i m ms A LE LE F Fa A i w Fit Fi nr ss ia we Me T p Rear Movable Hanger i L 45 Tilted Installation 1 Determine if the heater is going to be tilted left or tilted right The front and rear suspension points selected must be on the same side left or right of the heater as shown below 2 Attach suspension hooks and or chains to the selected suspension points of the heater Use these two suspension points for Tilted 45 Right Installation Use these two suspension points for Tilted 45 Left Installation Tilted Left Enerco Group Inc Gas Fired Low Intensity Infrared Heater Operating Instructions and Owner s Manual MHT HST HEATER ASSEMBLY INSTRUCTIONS 1 Place gaskets from Gasket kit 02885 on each side of the burner box Use the four mounting studs around each of the three inch holes for location 2 Slide the tube flanges over the studs as was done in the prior step with the gaskets The tube ends extend through the flanges to help with alignment 3 Using the four long and four short nuts from the bolt kit 02876 TN Rennes prets eds ie the outside OVERTIGHTEN ASSEMBLY AS IT 4 Slide the bulkhead and reflector assembly forward until it stops MAY CAUSE DAMAGE TO PARTS on the long nuts Using the 4 5 16 18 X 1 2 long screws form OF ASSEMBLY the 02876 bolt kit secure the bulkhead to the burner box BURNER BOX F102850 F 102851
15. GASKET FROM KIT 02885 TUBE SET FROM KIT F106250 FOUR LONG 5 16 NUTS FROM KIT 02876 WO TOP CENTER TWO BOTTOM CENTER Q BULKHEAD SHOWN WITH REFLECTOR REMOVED FOR CLARITY FOUR 5 16 18 X 1 2 LONG SCREWS FROM KIT 02876 FOR BULKHEAD ONLY THREE SHOWN IN DETAIL FOUR SHORT 5 16 NUTS FROM KIT 02876 TWO PER SIDE Enerco Group Inc Gas Fired Low Intensity Infrared Heater D Operating Instructions and Owner s Manual Typical Installation The Illustration below shows a typical installation of the MAT HST tube heater The installation drawing shown has a straight horizontal venting arrangement and specifies the minimum space required for maintenance as well as the allowable range of distances between the two suspension points Detailed venting arrangements are illustrated in following portions of this section Minimum Recommended for servicing 24 Ts Hm 1 Max MANER K Points Vent terminal Burner Box Reflector Outside wall thickness 10 max 1 2 min Exterior Wall Minimum Mounting Height 7 feet X Dimension CRESET VHT HST 45 102 114 For minimum mounting height in aircraft hangars and public garages po Canadian installations 12 inches 30 cm Clearance above grade veranda porch deck or balcony Clearance to window or door that may be opened C Clearance to permanently closed window Vertical clearance to ventilated soffit
16. ap on the gas valve Check gas manifold pressure Measure manifold pressure at the pressure tap on the gas valve Natural Gas 4 0 w c LP Gas 10 0 w c If manifold pressure does not meet requirements adjust valve outlet pressure with the adjustment screw on the valve NOTE Proper inlet gas pressure must be verified before performing outlet pressure testing Possible Cause Damaged wires between DSI module and electrode Faulty DSI module Damaged Electrode Replace Electrode Enerco Group Inc Gas Fired Low Intensity Infrared Heater 21 Operating Instructions and Owner s Manual Section 8 ILLUSTRATED PARTS Illustrated Parts This section provides the part numbers and pictorials for components of the MHT HST tube heater Callout letters on the illustrations are keyed to the associated parts list ITEM PART NUMBER 05795 05747 02795 02814 02810 08364A 02806 02822 02812 02811 02802 DESCRIPTION Spark Electrode Ignition Wire Orifice NG Orifice LP Sight Window Blower Motor Ignition Module Transformer Manifold Pressure Switch Gas Valve N G Gas Valve L P Relay MHT 45 HST 45 Enerco Group Inc Gas Fired Low Intensity Infrared Heater 22 Operating Instructions and Owner s Manual MHT HST 45 Tube Heater REPLACEMENT PARTS LIST FOR HEATER MODEL MHT HST TUBE HEATER REF ITEM DESCRIPTION F202850 MHT 45NG Burner Box for F208850 F202851 MHT 45LP
17. approved venting system When venting the heater horizontally through a combustible outside wall the same requirements listed previously for Venting Through the Roof apply except as follows 1 When venting the heater to the outside of the building through a sidewall use 3 inch O D single wall metal pipe This is to be constructed of galvanized sheet metal or other approved noncombustible corrosion resistant material as indicated by state and or local codes 2 For horizontal venting the vent lengths may be as follows Minimum Equivalent Length 5 feet of Pipe Maximum Equivalent Length 25 feet of Pipe Use the following correction factors to obtain the equivalent length a Subtract 15 feet if the run is horizontal b Subtract 10 feet for an approved vent cap c Subtract 10 feet for each elbow beyond 15 feet from the heater d Subtract 15 feet for each elbow within 15 feet of the heater EXAMPLE foran approved vent cap you have 10 ft for a horizontal run you have 15 ft Your Maximum Equivalent Length is 25 ft NOTE To minimize problems associated with condensation in long runs vent pipe can be insulated 3 The horizontal venting system approved with this heater consists of the Side Wall Vent Kit 02840 shown are page 3 4 Limit the quantity of 90 elbows to two When vent pipe is in a horizontal run it must be pitched downward 1 4 inch per foot towards the vent
18. d the opening below the heater shall be one square inch of free area for each 4 000 Btu hr of heater input In contaminated atmospheres or high humidity areas optional outside air for combustion is recommended Adequate clearances around the perforated fresh air plate must be maintained at all times In larger open areas of buildings infiltration normally is adequate to provide air for combustion Direct Outside Air For Combustion Residential Outside combustion air should be supplied directly to the heater when the building is subject to negative pressure or contaminants are present in the building air These contaminates include paints solvents corrosive vapors or any other foreign particles that may cause damage to the heater or result in poor combustion Outside combustion air can be brought directly to the heater by a 3 inch diameter duct less than 25 feet long or equivalent This is attached to a 3 inch starting collar that is fitted on inlet side of the control cabinet An approved vent cap must be placed directly to the end of the outside combustion air inlet pipe The combustion air inlet should be a minimum of 3 feet either vertically or horizontally from the flue vent termination The air intake terminal must be located not less than one foot above grade It is good installation practice to supply combustion air from the same pressure zone as the vent outlet In colder climates where necessary insulate the fresh air duct A
19. e through which the heated products of combustion pass Rear Movable Hanger Provides support for the heat exchanger and reflector at the end that is furthest from the burner box The support may be moved within limits to accommodate hanging of the unit Service Door To be removed only by a licensed contractor Removal of this service door provides access to the electrical and gas distribution components Intake Vent Accomondates a 3 diameter combustion air inlet duct that delivers fresh air to the burner Exhaust Vent Accomondates the air venting duct that carries the products of combustion to be vented outdoors Nipple NPT Point at which the gas supply is connected to the heater Power Cord Includes a three prong plug that must be connected to a dedicated and properly grounded three prong ceiling outlet Enerco Group Inc Gas Fired Low Intensity Infrared Heater 4 Operating Instructions and Owner s Manual Technical Specifications Length nv 1 Max Reflector Burner Box Suspension Points Heat Exchanger Side View lt R m End View Leading Particulars HEATER SPECIFICATIONS VENTING SPECIFICATIONS Electrical Vent Flue Rating 120VAC 60Hz single phase 1 amp Length 25 feet Maximum Connection 3 pin molded plug 5 feet Minimum Gas Inlet Connection Flue Pipe 3 0 diameter Connection 2 Male NPT Vent Pipe 3 diameter Gas Inlet Pressure The minimum inlet gas supply pressure fo
20. er into grounded three prong ceiling receptacle Do not cut or remove the grounding prong from this plug Do not use with an extension cord Failure to follow these instructions will result in death or electrical shock ATTENTION Risque d electrocution Brancher le cordon du radiateur sur un socie a 3 broches et a la masse situe au plafond Ne pas sectionner ou retirer la broche de masse de cette prise N utilliser aucun cable de rallonge Le non respect de ces consignes peut entrainer mort ou electrocution Grounding The heater must be electrically grounded in accordance with the following codes United States Refer to National Electrical Code ANSI NFPA 70 latest revision Wiring must conform to the most current National Electrical Code and local ordinances Canada Refer to Canadian Electrical Code CSA C22 1 Part 1 latest revision Venting Requirements System Requirements The MHT HST tube heater must be installed with venting or with one of the optional venting kits available from Enerco DO NOT connect this heater to a separate chimney Gas appliances must not be connected to a chimney flue serving a seperate solid fuel burning appliance DO NOT common vent with any other fuel burning appliance Maximum Length 25 feet Minimum Length 5 feet WARNING Carbon Monoxide Hazard Heater must be exhausted outside Use materials supplied Failure to follow these instructions will result in death or injury
21. eriously damaged 4 All horizontal venting sections must slope away from the heater at a rate of 4 per foot 5 The total length of vent pipe horizontal and vertical runs combined plus the length of the exterior termination must not exceed 25 feet and must not be less than 5 feet 6 The vent terminal mounted outside of the building should not be located above walkways Condensate produced during operation of the heater could drip onto the walkway and could form ice during cold weather 7 Be sure that the venting installation is in accordance with all applicable local codes and recommendations of the local gas company 8 DONOT connect this heater to a separate chimney and DO NOT common vent with any other fuel burning appliance Gas appliances must not be connected to a chimney flue serving a seperate solid fuel burning appliance 9 Maintain a minimum of 1 inch clearance from combustibles around all vent pipes 10 Seal all vent pipe connections with high temperature silicone sealant and secure each connection with three sheetmetal screws Minimum Required Safe Distances from Combustibles In all situations the minimum required safe distances from combustibles must be maintained Combustibles are materials which may catch on fire and include many common items such as wood paper rubber fabrics etc Combustible materials such as those noted and any other combustible materials must not be placed closer to any base
22. f you cannot reach your gas supplier call the fire department C Use only your hand to turn the gas valve handle Never use tools If handle will not turn by hand do not try to repair it call a qualified service technician Force or attempted repair may result in a fire or explosion D Do not use this heater if any part has been under water Immediately call a qualified service technician to inspect the heater and replace any part of the control system which has been under water E Minimum clearances to other materials or other items which when located under the heater might be damaged due to excessive heat WARNING Improper installation adjustment service or maintenance can cause injury or property damage Refer to the owner s information manual provided with this appliance For assistance or additional information consult a qualified installer service agency or the gas supplier 1 STOP Read the safety instructions on this label 2 Set the thermostat to lowest setting 3 Turn off all electrical power to appliance 4 This appliance is equipped with an ignition device which automatically lights the burner 5 Remove control access panel 6 Push in gas control knob to unlock NOTE Valve lever is spring loaded and will drop automatically 7 Wait 5 minutes to clear out any gas If you then smell gas STOP Follow B in the safety information to the left of instructions If you don t smell gas go to next step 8 T
23. he size of the gas supply lines must comply with local codes and recommendations of the local gas company United States Refer to National Fuel Gas Code ANSI Z223 1 latest revision same as NFPA Bulletin 54 Canada Refer to CAN 1 B149 1 Installation Codes for Gas Burning Appliances A 1 8 NPT plugged tap must be installed in the gas line connection immediately upstream of the heater that is farthest from the gas supply meter The tap is required for checking system gas pressure Meter and Service Meter and service must be large enough to handle all the heaters being installed plus any other connected load The gas line which feeds the system must be large enough to supply the required gas with a maximum pressure drop of 2 w c When gas piping is not included in the layout drawing the local gas supplier will usually help in planning the gas piping Enerco Group Inc Gas Fired Low Intensity Infrared Heater 6 Operating Instructions and Owner s Manual Electrical Service Requirements System Requirements The MHT HST tube heater requires a grounded three prong electrical outlet to be installed within 18 inches of the rear surface of the heater s burner box It is recommended that the outlet for the heater be ceiling mounted and should be on a dedicated circuitDO NOT use an electrical extension cord to operate the heater Heater Rating 120 VAC 60 Hz Single Phase 1 Amp WARNING Electrical Shock Hazard Plug heat
24. is detected the gas valve is closed and a purge period begins After the purge period the ignition module energizes the spark igniter and the gas valve If a flame is still not established a third and final purge ignition sequence is begun After three failed attempts the system control mechanism will lock out for a period of one hour or until the unit is reset Reset is accomplished by removing power from the heater for at least five seconds 7 With a three try module when the flame is established and then lost on the first or second trial the gas valve will automatically turn off A purge and trial for ignition will then occur 8 Periodic visual check of burner flame while unit is in operation through sight glass in bottom of unit Section 6 MAINTENANCE Pre Season Maintenance Heater area to be kept clear and free form combustible materials gasoline and other flammable vapors and liquids Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and replace any part of the control system and any gas control which has been under water CAUTION Label all wires prior to disconnection when servicing controls wiring errors can cause improper and dangerous operation For best performance the following maintenance procedures should be performed by a qualified service agency before each heating season 1 A qualified service agency should be contac
25. l information d assistance ou appareil de chauffage telle qu un manuel d instruction les etiquettes etc contactez le fabricant CONTENTS Section L INFRODUETONSS cee eet een 5 SECHON 2 PLANNING sorsien a ns 6 SECTIONS INSTALLATION 2 8 Section 4 VENTING ES nement 12 Section 5 OPERATION sees cetera 18 Section MAINTENANCE n ssssssssesssssseeesssssseseesssssseeeessssseeeesessssss 19 Section 7 TROUBLESHOOTING 3e 20 Section 8 ILLUSTRATED PARTS s sssssssosesssssseersosssssereoossseereoossssss 22 WARRANTY sonarnnnnen aaien R tee 24 INSTRUCTIONS FOR ORDERING PARTS rune 24 WARNING D FIRE BURN INHALATION AND EXPLOSION HAZARD KEEP SOLID COMBUSTIBLES SUCH AS BUILDING MATERIALS PAPER OR CARDBOARD A SAFE DIS TANCE AWAY FROM THE HEATER AS RECOMMENDED BY THE INSTRUCTIONS NEVER USE THE HEATER IN SPACES WHICH DO OR MAY CONTAIN VOLATILE OR AIRBORNE COMBUSTIBLES OR PRODUCTS SUCH AS GASOLINE SOLVENTS PAINT THINNER DUST PAR TICLES OR UNKNOWN CHEMICALS L AVERTISSEMENT Le feu les brulures le danger d inhalation et explosion garder combustibles solide tel que les materiels de papier ou le carton Une distance sure eloigne de l appareil chauffage comme recommande Par les instructions ne utiliser l appareil de chauffage dans les espaces qui forme contenir combustibles volatiil ou aeroporte ou les produit qu essence les dissolvants peindre plus mines les particles de poussiere ou les produits chimiques incon
26. la main n essayez pas de la reparer appelez un technicien d entretien qualifie Forcer sur la poignee ou tenter une reparation peut produire un incendie ou une explosion D N utilisez pas ce radiateur si une piece quelconque a ete submergee Appelez immediatement un technicien d entretien qualifie pour qu il inspecte le radiateur et remplace toute piece du systeme de commande qui a ete submergee ATTENTION L installation deplace l ajustement le service ou l entretien peuvent causer les dommages de blessure ou propriete Se referer au manuel d iformation du proprietaure fourmi avec cet appareil Pour l assistance ou d information supplementaire consulter un installateur une agency de service ou le fourmisseur de gaz qualife Enerco Group Inc Gas Fired Low Intensity Infrared Heater Ce radiateur n a pas de veilleuse est equipe d un m canisme de contact qui allume B AVANT UTILISATION reperez toute odeur de gaz aux alentours de la zone du radiateur E Les degagements minimum aux autres materiels ou aux autres articles qui quand localise sous l appareil de chauffage pourrait etre endommage en raison de la chaleur excessive ATTENTION Si vous ne suivez pas ces instructions exactement un feu ou l explosion peut resulter causant les damages de propriete la blessure personnelle ou perdu de vie CONSIGNES D UTILISATION 1 L AARETI Lire les instructions de surete sur cette etiquette 2 Reglent le
27. ly to you This Warranty gives you specific legal rights and you may have other rights which vary from state to state EGI 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 2003 Mr Heater All rights reserved CSA REQUIREMENT 7 89 ANSI Z21 86B 2002 ANS Z83 20 CSA 2 34 2003 Enerco Group Inc Gas Fired Low Intensity Infrared Heater Operating Instructions and Owner s Manual
28. ngements For complete information consult ANSI Z223 1 latest revision and applicable local codes Use the following guidelines to help insure an adequate safe ventin arrangement Enerco Group Inc Gas Fired Low Intensity Infrared Heater Operating Instructions and Owner s Manual a Besure that method selected for venting heater complies with all Single Wall codes as required for each particular location Single wall vent run b Exhaust end of heater will accept a three 3 inch flue pipe using Single wall terminal end the flue pipe adapter c Heater may be vented to the outdoors either vertically or horizontally Roof or Building Overhan d If heater is to be vented horizontally 1 Vent must exit building not less than seven 7 feet above grade when located adjacent to public walkways 3 0 Min E ty 18 7 ma Y Ne 6 0 Min Note position of vent cap openings 2 Vent must terminate at least three 3 feet above any forced air inlet located within ten feet 10 Parapet or Adjoining Building 3 Vent must terminate at least four 4 feet below for 4 feet horizontally from or one 1 foot above any door window or gravity inlet into any building 4 Vent terminal shall be located at least twelve 12 inches from any opening through which vent gases could enter the Pitch flue pipe down toward building m outlet 1 4 per foot for i de drai e Vent terminal opening must be beyond
29. nus WARNING A The State of California requires the following 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 L AVERTISSEMENT L etat de Californie exige les avertissement siuvants Derives de combustion ont produit en utilisant ce produit contient monoxide de carbone un chimique gaz connu dans l etat de californie pour causer les defauts de cancer et naissance ou autre le mal reproducteur SSII SNS SES aaa Enerco Group Inc Gas Fired Low Intensity Infrared Heater 2 Operating Instructions and Owner s Manual BEFORE YOU BEGIN Read this manual carefully before installing or servicing this equipment Improper installation servicing or maintenance will cause death injury or property damage Check the minimum required safe distances from combustibles given on the outside of each burner to make sure that the product is suitable for your application The minimum required safe distances from combustibles is also found on page 9 of this manual Installer must be a licensed contractor of representative After the installation is complete check product operation as provided in these instructions Unpacking the Heater Manpower Requirements To prevent personal injury and damage to the heater two persons will be required to remove the heater from the carton Both ends of the
30. o disconnection when maximum 1 per thermostat Grounding The heater must be electrically grounded in accordance with the following codes United States Refer to National Electrical Code ANSI NFPA 70 latest revision Wiring must conform to the most current National Electrical Code and local ordinances Canada Refer 120V 60Hz Low Voltage to Canadian Electrical Code CSA C22 1 Part 1 latest revision Supply Circuit Thermostat Stock 10367 LADDER DIAGRAN CONNECTION DIAGRAW Ws A TS i ata E AT BlowerVert loteur Alig Ea ga nME fy WARNING Electrical Shock Hazard The appliance when installed must be electrically grounded in accordance with local code or in the absence of local codes with the National Electrical Code ANSI NFPA 70 or Canadian Electrical Code CSA 22 1 if an external electrical source is utilized Plug heater into grounded three prong ceiling receptacle Do not cut or remove the grounding prong from this plug Do not use with an extension cord Failure to follow these instructions will result in death or electrical shock Gas Service Installation Install Gas Supply Lines ATTENTION Risque d lectrocution A 2 gas supply connection is required as shown below To check Brancher le cordon du radiateur sur un socle 3 broches system pressure a plugged 1 8 NPT tapping is required upstream et la masse situ au plafond Ne pas sectionner ou of the manual gas
31. operate the heater until ALL steps of the installation have been accomplished Failure to follow this warning will cause death injury or property damage ATTENTION Plusieur tapes sont impliqu es dans l installation de l appareil de chauffrage PAS la tentative pour op rer l appareil chauffrage jusqu ce que TOUTES tapes de l installation ont t accomplies L echec pour suivre cet avertissement causera la mort les dommages de blessure ou propri t Safety Equipment Use of the following safety equipment is recommended for installation ofthe MAT HST tube heater e Work gloves Safety glasses Installation Tools Tools required for the installation of the MHT HST tube heater include at a minimum the following Tape measure Electric drill with an assortment of drill bits e Pipe wrenches 2 required e Screwdriver Tin snips e Hacksaw e Wire strippers Staple gun Level e Pliers Installation Materials Materials required for the installation of the MHT HST tube heater include ata minimum the following e High temperature silicone sealant Suspension hooks capable of supporting 150 pounds each Sheetmetal screws The following items may be required for your particular installation e Plastic drain hose Additional vent pipe e Roof flashing e Rain collar e Chain 2 0 or equivalent e S hooks as required Choose Location for Heater When selecting a sui
32. operation after service Proper Operating Flame IGNITER BURNER FLAME SHOULD BE A STRONG BLUE FLAME BURNER CUP WITH LITTLE TO NO YELLOW Enerco Group Inc Gas Fired Low Intensity Infrared Heater Operating Instructions and Owner s Manual Section 7 TROUBLESHOOTING General This troubleshooting quide has been designed to assist you in locating and correcting minor problems that may occur with the MHT HST tube heater BLOWER DOES NOT COME ON Possible Cause Try This Power cord is not plugged in Plug power cord into a grounded three prong Outlet Thermostat setting is too low Increase thermostat temperature setting DSI module needs to be reset Unplug heater power cord from the electrical Outlet wait for a minimum of five seconds Plug heater cord back into outlet No power at electrical outlet Replace fuse or reset circuit breaker Faulty blower motor Replace blower motor IGNITER DOES NOT SPARK Posse Cet DSI module needs to be reset Unplug heater power cord from the electrical outlet wait for a minimum of five seconds Plug heater cord back into outlet a a Unplug heater power cord from the electrical outlet check igniter and Faulty igniter or ignition wire ignition wire for damage If damaged replace igniter and or ignition cable Air switch does not operate Check flue air supply duct for obstructions remove obstructions as required Check for loose leaky air hoses to the air switch repair replace
33. or CSA B149 1 one of the following shall be indicated a A minimum clearance value determined by testing in accordance with section 2 19 6 or b A reference to the following footnote Clearance in accordance with local installation codes and the requirements of the gas supplier Enerco Group Inc Gas Fired Low Intensity Infrared Heater Operating Instructions and Owner s Manual BASIC FLUE VENTING Residential Only Venting must be in compliance with the latest edition of the National Fuel Gas Code ANSI Z223 1 latest edition or the authority having jurisdiction e Uninsulated single wall metal pipe shall not be used outdoors in cold climates for venting of these heaters as specified by Section 7 8 of the ANSI Z223 1 NFPA 54 National Fuel Gas Code latest edition e Forthe installation of a single wall metal pipe through an exterior combustible wall refer to the latest edition of the National Fuel Gas Code or the authority having jurisdiction Inregions of the country where prevailing winds are consistently higher than 40 mph it may be necessary to terminate the vent system above the roof level Other venting references can be found in equipment volume of the ASHRAE Handbook A SINGLE HEATER VENTING a Vertical Through the Roof NOTE For residential applications the heater must not be connected to a separate chimney but must be installed using the venting system as specified below 1 When venting
34. r the purpose of input adjustment Natural Gas Minimum Inlet 5 0 w c Maximum Inlet 10 5 w c LP Gas propane Minimum Inlet 11 0 w c Maximum Inlet 13 0 w c Manifold Pressure Natural Gas 4 0 w c LP Gas propane 10 0 w c Enerco Group Inc Gas Fired Low Intensity Infrared Heater 5 Operating Instructions and Owner s Manual Where can the heater be installed The MHT HST tube heater is intended for installation in the following areas Residential applications such as garages greenhouses workshops Light industrial commercial applications such as entranceways lobby areas Lunch rooms aircraft hangars see Section 2 for restrictions public garages see Section 2 for restrictions Where can t the heater be installed The MHT HST tube heater is not intended for installation in the following areas e Residential living or sleeping areas e Basements Installer s responsibility The MHT HST tube heater as well as the gas and electrical supply and the venting of the heater must be installed in accordance with applicable specifications and codes Only firms or individuals well qualified in this type of work should install the system Consult local Building Inspectors Fire Marshals for further guidance Use the information given in this manual together with the cited codes and regulations to perform the installation The installer mus
35. repaid within said one year period and found by the Company to have imperfections in material or workmanship If a part is damaged or missing call our Customer Service Department at 800 251 0001 Address any Warranty Claims to the Customer Service Department EGI 4560 W 160th ST CLEVELAND OHIO 44135 Include your name address and telephone number and include details concerning the claim Also supply us with the purchase date and the name and address of the dealer from whom you purchased our product The foregoing is the full extent of the responsibility of the Company There are no other warranties express or implied Specifically there is no warranty of fitness for a particular purpose and there is no warranty of merchantability In no event shall the Company be liable for delay caused by imperfections for consequential damages or for any charges of the expense of any nature incurred without its written consent The cost of repair or replacement shall be the exclusive remedy for any breach of warranty There is no warranty against infringement of the like and no implied warranty arising from course of dealing or usage of trade This warranty will not apply to any product which has been repaired or altered outside of the factory in any respect which in our judgment affects its condition or operation Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not app
36. s P N 02841 Operating Instructions and Owner s Manual Operation of the Heater CHILDERN AND ADULTS SHOULD BE ALERTED TO THE HAZARDS OF HIGH SURFACE TEMPERATURES AND SHOULD STAY AWAY TO AVOID BURNS OR CLOTHING IGNITION YOUNG CHILDERN SHOULD BE CAREFULLY SUPERVISED WHEN THEY ARE IN THE SAME SPACE AS THE HEATER CLOTHING OR OTHER FLAMMABLE MATERALS SHOULD NOT BE HUNG FROM THE HEATER OR PLACED ON OR NEAR THE HEATER ANY GUARD OR OTHER PROTECTIVE DEVICE REMOVED FOR SURVICING THE HEATER MUST BE REPLACED PRIOR TO OPERATING THE HEATER INSTALLATION AND REPAIR SHOULD BE DONE BY A QUALIFIED SERVICE PERSON THE HEATER SHOULD BE INSPECTED BEFORE USE AT LEAST ANNUALLY BY A QUALIFIED SERVICE PERSON MORE FREQUENT CLEANING MAY BE REQUIRED AS NECESSARY IT IS IMPERATIVE THAT THE CONTROL COMPARTMENT AIR PASSAGEWAYS AND BURNER S OF THE HEATER ARE KEPT CLEAN 1 Turn the thermostat up When the thermostat calls for heat the blower motor will energize 2 When the motor approaches nominal running speed the air proving switch closes and activates the ignition module which in turn initiates the purge 3 The ignition module then energizes the spark igniter 4 When sparking begins the gas valve is energized 5 Ifa flame is detected the gas valve remains open When the call for heat is satisfied and the system control mechanism de energizes the burner line voltage supply and the gas valve are turned off 6 If no flame
37. s it DOES NOT indicate the required mounting height The minimum mounting height is 7 feet except for aircraft hangars and public garages MINIMUM REQUIRED SAFE DISTANCES ee eee HST 45 45 000 Enerco Group Inc Gas Fired Low Intensity Infrared Heater 9 Operating Instructions and Owner s Manual Hang the Heater Residential garages come in a variety of sizes shapes styles and methods of construction Because of all these variables it is not possible to include mounting hardware with the MHT HST heater Although wooden rafters and joists are the most common overhead structural members in residential garage applications other structural configurations are also illustrated below In the typical suspension methods shown below lengths of chain are shown as a means of lowering the heater However for most residential applications it may not be necessary to lower the heater Instead it may be possible to screw hook type hardware into the underside of a beam The exposed hook could directly engage one of the two mounting holes in the front fixed hanger while another hook could engage in one of the three suspension loops of the rear movable hanger Whichever method of suspension is selected the two required suspension points must be capable of supporting a minimum of 150 pounds each Wood Beam Most common for residential applications Threaded Hook Screw Hook min 3 8 10 mm Washer Wood Beam Mos
38. shall be located so as not to be subject to damage by aircraft cranes movable scaffolding or other objects When installed over hoists the minimum required safe distances to combustibles must be maintained from the uppermost point of the combustible materials placed on the hoist Public Garages The MHT HST tube heater may be used in public garages Installation in public garages must be in accordance with the following codes United States Standard for Parking Structures NFPA 88A Latest revision or the Standard for Repair Garages NFPA 88B latest revision Canada Refer to Can 1 B149 1 Installation Codes for Gas Burning Appliances Heaters must be installed a minimum of eight feet above the floor Minimum required safe distances to combustibles must be maintained from vehicles parked below the heater When installed over hoists the minimum required safe distances to combustible must be maintained from the uppermost point of the combustible materials placed on the hoist Hazardous Locations Where there is the possibility of exposure to combustible airborne material or vapor consult the local Fire Marshal the Fire Insurance Carrier or other authorities for approval of the proposed installation Enerco Group Inc Gas Fired Low Intensity Infrared Heater 7 Operating Instructions and Owner s Manual Section 3 INSTALLATION WARNING Several steps are involved in the installation of the heater DO NOT attempt to
39. shut off valve supplied with the heater retirer la broche de masse de cette prise N utilliser aucun Before connecting the heater to the supply system verify that all cable de rallonge Le non respect de ces consignes peut high pressure testing of the gas piping has been completed entrainer mort ou electrocution DO NOT HIGH PRESSURE TEST THE GAS PIPING WITH THE BURNER CONNECTED Z ATTENTION Z WARNING A Follow these instructions to ensure a safe gas supply system L Instruction Mettre a Eletrique Electrical Grounding Instructions installation Cet appareil de chauffage est equipe avec une trios This heater is equipped with a three prong grounded mettre a terre le bouchon pour votre protedtion contre plug for your protection against shock hazard and should 1 Support all gas piping with suitable pipe hanging materials le danger de choc et devrait etre directement plugged be plugged directly into a properly grounded three prong receptacle Do not cut or remove the dans un convenablement a mis a terre receptacle de D esd outer omerievei ty a ner ties ee 2 Use wrought iron or wrought steel pipe and malleable iron a terre de ce bouchon fittings The use of copper tube and brass fittings is acceptable Enerco Group Inc Gas Fired Low Intensity Infrared Heater 7 Operating Instructions and Owner s Manual 3 4 when such use is in compliance with local codes All pipe tube and fittings should be new and free from defects
40. ss of life Enerco Group Inc 4560 W 160TH ST CLEVELAND OHIO 44135 216 916 3000 01 05 Revision L1 02853 POPP PPP PPP aaa EE EEE WARNING YOUR SAFETY IS IMPORTANT TO YOU AND TO OTHERS SO PLEASE READ THESE INSTRUCTIONS BEFORE YOU OPERATE THIS HEATER L AVERTISSEMENT Votre surete est importante a vous et donc s il vous plait lire ces instructions avant d operer cet appareil de chauffage GENERAL HAZARD WARNING FAILURE TO COMPLY WITH THE PRECAUTIONS AND INSTRUCTIONS PROVIDED WITH THIS HEATER CAN RESULT IN DEATH SERIOUS BODILY INJURY AND PROPERTY LOSS OR DAMAGE FROM HAZARDS OF FIRE EXPLOSION BURN ASPHYXIATION CARBON MONOX IDE POISONING AND OR ELECTRICAL SHOCK ONLY PERSONS WHO CAN UNDERSTAND AND FOLLOW THE INSTRUCTIONS SHOULD USE OR SERVICE THIS HEATER IF YOU NEED ASSISTANCE OR HEATER INFORMATION SUCH AS AN INSTRUCTIONS MANUAL LABELS ETC CONTACT THE MANUFACTURER L AVERTISSEMENT GENERAL DE DANGER A L Echec pour se conformer aux precautions et aux instructions a fourni avec cet appareil de chauffage avoir pour resultat la mort blessure et la perte de propriete ou les dommages physiques serieuses du danger de feu l explosion la brulure l asphyxie monoxide de carbone empoisonant et ou le choc electrique Seulement les personnes qui peuvent comprendre et peut suibre les instructions doivent utiliser ou doivent entretenir cet appareil de chauffage Si vous avez besoin de
41. t furnish all needed materials that are not furnished as standard equipment It is also the installer s responsibility to see that the materials and installation methods used result in a job that is workmanlike in appearance and is in compliance with all applicable codes and requirements to this manual The installer must give this manual to the owner Section 2 PLANNING General This section provides the following information Defines the gas electric and venting requirements for the MHT HST tube heater e Specifies the national standards and applicable codes that apply to the gas electric and venting requirements e Specifies the national standards and applicable codes that apply to non residential installations Gas Service Requirements System Requirements Inlet Connection Connection 2 Male NPT Inlet Pressure Natural Gas Minimum Inlet 5 0 w c Maximum Inlet 10 5 w c LP Gas propane Minimum Inlet 10 5 w c Maximum Inlet 13 0 w c Manifold Pressure Natural Gas 4 0 w c LP Gas propane 10 0 w c Type of Gas The type of gas appearing on the nameplate must be the type of gas used Installation must comply with local codes and recommendations of the local gas company United States Refer to National Fuel Gas Code ANSI Z223 1 latest revision same as NFPA Bulletin 54 Canada Refer to Can 1 B149 1 Installation Codes for Gas Burning Appliances Gas Supply Lines T
42. t rise 5 Min VERTICAL THROUGH THE ROOF SINGLE HEATER VENTING b Vent Termination Residential Installations 1 The vent terminal shall terminate above the roof line so that no discharge opening is less than 2 feet 0 6m horizontally from the roof surface The lowest discharge opening will be no closer than the minimum height specified in the following table These minimum heights may be used provided the vent is not less than 8 feet 2 4m from any vertical wall or similar obstruction Not less than 8ft 2ft min Vertical Wall Enerco Group Inc Gas Fired Low Intensity Infrared Heater 13 Operating Instructions and Owner s Manual MINIMUM HEIGHT FROM ROOF TO LOWEST DISCHARGE OPENING Roof Pitch H Min Flat to 6 12 1 0 Feet 7 5 Feet Over 6 12 to 8 12 Over 8 12 to 10 12 Over 10 12 to 12 12 Over 12 12 to 16 12 Over 16 12 to 20 12 2 All other gas vents shall terminate not less than 2 feet 0 6m above the highest point where they pass through the roof and at least 2 feet 0 6m higher than any portion of a building located within 10 feet 3 1m as shown in the following illustration 10ft or less Vent Cap Type B E Vent Pipe 2ft min Type B Double Wall Storm Collar Boot Flashing 2 Clearance Seal joint amp annular space Vent Pipe p Single Wall c Horizontal Through the Sidewall This heater when horizontally vented must be installed with the
43. t common for non residential applications Heater Orientation The MHT HST tube heater may be installed in any of the three orientations indicated below Select the heater orientation that is best suited for the location that you have chosen for your heater e Horizontally Tilted 45 Right Tilted 45 Left NOTE If the heater is going to be vented through the roof be sure to carefully review the roof option installa tion portion of this section Ensure that the selected mounting site will satisfy the measurement param eters vent length not to exceed 25 feet described in that section Horizontal Installation 1 Using S hooks attach two equal lengths of 2 0 chain or equivalent to the two uppermost holes in the front fixed hanger 2 Slip the free end of both chains onto another S hook as shown 3 The uppermost S hook can now be installed on the suspension hardware that you have installed for suspension of the unit An additional length of chain may also now be installed if required to lower the heater The hook portion of hook type suspension hardware may directly engage the two holes in the front fixed hanger and the center loop of the rear moveable Front Fixed Hanger a Q LA IH a Ah nu i LR Re H in Bie Ti aS mL Bia ae Si on m a ie ay gt if my k han We a Af hi i1 EL EL oe jf a oe a a ma es a A a oe Re m DR RE k a li Se a a ii y fa a 3 T in
44. table mounting location for the MHT HST tube heater it is important to consider the following 1 The heater must meet the minimum mounting height requirement of 7 feet above the floor For aircraft hangars and public garages the heater must meet the minimum mounting height requirement of 8 feet above the floor 2 The proposed mounting location allows for the minimum required safe distances from combustibles combustibles include vehicles wood gasoline and flammable objects liquids and vapors 3 The proposed mounting location of the heater will not restrict motion of passageway doors or windows 4 The proposed location will not interfere with operation of the overhead garage door 5 The proposed location will provide the best coverage of the total area to be heated 6 The proposed location must provide for adequate combustion and ventilation air 7 The proposed location must provide for adequate accessibility clearance for service and proper operation 8 Consideration be given to the types of vehicles that will be parked in the garage cars vans boats RV s etc 9 The proposed location will allow for the minimum required safe distances from combustibles with respect to the vehicles parked in the garage 10 The proposed location will allow the required utilities i e gas and electric and venting to be installed maximum vent length is 25 feet 11 Sufficient clearances will exist to allow for maintenance
45. tal Venting Vertical Venting a In combustible or noncombustible walls use vent kits on page a Three 3 inch O D flue pipe maximum twenty five 257 feet in 3 Follow vent manufacturer s instructions for proper length may be used as shown with approved vent cap installation b An insulated thimble may be required to pass through b Three 3 inch O D flue pipe is required Twenty five 25 feet combustible structures check local codes maximum length is recommended c All flue joints should be sealed using suitable products see c All flue joints should be sealed using suitable product such as recommendation for horizontal venting General Electric RTV 106 or Permatex Form A Gasket Red High Temperature Silicone Adhesive Sealant d Vent terminal should be installed at a height sufficient to prevent blockage by snow e Building materials should be protected from degradation by flue gases Enerco Group Inc Gas Fired Low Intensity Infrared Heater 15 Operating Instructions and Owner s Manual Vertical Venting VW a if Applicable BA Single Wall Pipe fe Secure all joints with 3 minimum 8 x 3 8 sheet metal screws and seal all joints Heater Heater Exhaust Vent Air For Combustion Residential If indoor combustion air is to be supplied for a tightly enclosed area one square inch of free area opening shall be provided below the heater for each 1 000 Btu hr of heater input When outside air is use
46. ted for service other than routine maintenance WARNING Turn off the gas and electrical supplies to the heater before performing any service or maintenance Failure to observe this warning will cause death injury or property damage ATTENTION le virage du gaz et les provisions lectriques l appareil de chauffrage l avant d ex cuter service de anr ou l entretien L chec pour observer que cet avertissment causera la mort les dommages de blessure ou propri t 2 Check condition of blower scroll and motor Dirt and dust may be blown out with compressed air or a vacuum cleaner may be used 3 Check the condition of the burner cup Carefully remove any dust or debris form inside burner cup 4 Inspect the igniter Replace igniter if there is excessive carbon residue erosion of electrodes of other defects 5 Check to see that the burner observation window is clean and free of cracks or holes Clean or replace as required 6 Check the flue pipe for soot dirt or obstructions The flow of combustion and ventilation air should not be obstructed After cleaning as necessary re attach the flue pipe to the heater 7 Outside surfaces of heater reflector may be cleaned by wiping with a damp cloth 8 Check vent terminal and outside air inlet to see that they have not become blocked during the non heating season If either pipe is restricted the air switch won t close resulting in a no heat situation 9 Verify proper
47. terminal The heater must be installed level 5 The horizontal venting system shall not terminate a Less than 4 feet 1 2m below 4 feet 1 2m horizontally from or 1 foot 30cm above any door window or gravity air inlet into any building The bottom of the vent terminal shall be located at least 7 feet 2 1m above grade or above snow accumulation levels as determined by local codes b Less than 3 feet 0 9m from a combustion air inlet c Less than 3 feet 0 9m from any other building opening or any gas service regulator d Directly over areas where condensate or vapor could create a nuisance or hazard or be harmful to the operation of gas utility meters regulators relief valves or other equipment Building materials should be protected from flue gases and condensate 6 In regions of the country where prevailing winds are consistently higher than 40 mph it may be necessary to terminate the vent system above the roof level Vent Cap Type B Vent Single Wall Vent Pipe Wall Thimble Wall Venting Ducting For Commercial and Industrial Installations Only General Requirements Use aluminum or teflon tape suitable for 550 F 3M Company tapes 433 or 363 or RTV silicone sealant Heater must be vented in accordance with specification ANSI Z223 1 latest revision Partial information relating to this specification is provided in this section with regard to size and configurations for venting arra
48. the heater to outside of building through a roof use 3 inch O D single wall metal pipe This is to be constructed of galvanized sheet metal or other approved noncombustible corrosion resistant material as indicated by state and or local codes 2 Avent passing through a combustible roof shall extend through a 2 inch clearance roof thimble Double wall Type B vent must be used for the portion of the vent system which passes through the roof An approved vent cap such as Leslie VersaCap Type B must be attached to the end of the flue 3 Themaximum equivalent length of vent pipe should be carefully observed A safety switch in the heater is designed to shut the heater off before excessive flue restriction causes bad combustion Minimum Equivalent Length 5 feet of Pipe Maximum Equivalent Length 25 feet of Pipe Use the following correction factors to obtain the equivalent length a A horizontal run is equal to 15 feet of vent length b An approved vent cap is equal to 10 feet of vent length c For each elbow in the first 15 feet of run they are equal to 10 feet of vent length d For each elbow past the first 15 feet of run they are equal to 15 feet of vent length EXAMPLE foran approved vent cap you have 10 ft for a horizontal run you have 15 ft Your Maximum Equivalent Length is 25 ft 4 Limit the quantity of 90 elbows to two When vent pipe is in a horizontal run it
49. tighten hoses as required Check for 24V across the secondary terminals 4 and 5 red and yellow wires of the transformer IF NO Check for 120V across the primary terminals 1 and 3 black and white wires of the transformer If 120V is present replace transformer If 120V is not present check wiring between power cord blower motor and transformer IF YES Connect a jumper wire across air switch terminals if jumper wire allows blower to operate replace pressure switch see replacement parts list for part number that applies to your unit rating Igniter spark gap incorrect Reset spark gap to 1 8 0 125 Enerco Group Inc Gas Fired Low Intensity Infrared Heater Operating Instructions and Owner s Manual BURNER DOES NOT LIGHT Possible Cause Air in the gas line Purge gas lines Improper gas inlet pressure Check gas inlet pressure at the 1 8 NPT plugged tap Gas inlet pressure should be as follows Natural Gas 5 0 w c min 10 5 max LP Gas 11 w c min 13 0 max If gas inlet pressure does not meet inlet pressure requirements contact the gas company Gas valve does not open Check for 24V across valve terminals Check Shutoff On Valve IF NO Check wiring between the ignition module and the valve Repair replace wires as required If wiring is OK replace ignition module IF YES Replace gas valve Low gas outlet pressure Check gas manifold pressure Measure manifold pressure at the pressure t
50. urn gas control knob counterclockwise 7 to ON 9 Replace control access panel 10 Turn on all electric power to appliance 11 Set thermostat to desired setting 12 lf the heater will not operate follow the instructions To Turn Off Gas To Heater and call your service technician or gas supplier TOTURNOFFTHEGASTOHEATER 00 1 Set thermostat to lowest setting 2 Turn off all electric power to the appliance if service is to be performed 3 Remove control access panel 4 Push in gas control knob slightly to unlock NOTE Valve lever is spring loaded and will drop automatically Replace control access panel DO NOT try to light the burner by hand Gas Inlet A ATTENTION CONSIGNES DE SECURITE A LIRE AVANT UTILISATION automatiquement le bruleur N ESSAYEZ en aucun cas d allumer le bruleur avec une allumette en particulier pres du sol certains gaz sont plus lourds que l air et s accumulent au niveau du sol QUE FAIRE SI VOUS SENTEZ DE GAZ Ne pas tenter de mettre le radiateur en marche Ne touchez a aucun interrupteur electrique n utilisez aucun des telephones de votre batiment Appelez immediatement votre fournisseur de gaz depuis le telephone d un voisin Suivez les consignes de votre fournisseur Si vous ne pouvez pas contacter voter fournisseur appelez les pompiers C Ne tournez la poignee de la valve a gaz qu a la main Ne jamais utiliser d outil Si la poignee ne tourne pas a
51. void locating the fresh air duct directly above the control box Provide a capped cleanout T as necessary Outside Combustion Air Supply The MHT HST tube heater is approved for installation with an outside air supply system Some compounds such as halogenated hydrocarbons or other corrosive chemicals in the air can be drawn into the equipment and cause an accelerated rate of corrosion of some of the heater components The use of such chemical compounds near the enclosure should be avoided IMPORTANT Ifthe building has a slight negative pressure or contaminants are present in the air an outside combustion air supply to the heaters is strongly recommended For an outside air supply a three 3 inch O D single wall pipe may be attached to the heater The duct may be up to twenty five 25 feet maximum length or two 2 feet minimum length with no more than two 2 elbows VERTICAL THROUGH THE ROOF Vent Cap NE Leslie VersaCap 3 Dia 3 Min Single Wall Pipe 6 Min 1 zap DE oe p a ou L q 0 du Flashin EE gt mm a 3 Starting Collar V4 per ft downwards Intake Vent The air supply duct may have to be insulated to prevent condensation on the outer surface The outside air terminal should be securely fastened to the outside wall by drilling four 4 holes in the outside flange wood screws or bolts and expansion sleeves may be used to fasten terminal Non Pressuri
52. zed Outside Air Supply Duct NOTE Flue pipe requires additional support Flex pipe will not support riser and outside air terminal Flex Pipe 3 Flue Pipe 6 to 12 long Seal All Joints Vertical Outside Air 3 Flue Pipe Seal All Joints Flex Pipe 6 to 12 long Horizontal Outside Air Electrical Service Installation System Requirements The MHT HST tube heater requires a grounded three prong electrical outlet to be installed within 18 of the rear surface of the heater s burner box It is recommended that the outlet for the heater be ceiling mounted and should be on a dedicated circuit DO NOT use an electrical extension cord to operate the heater In order to control the heater thermostatically it is necessary that the grounded three prong electrical outlet be controlled with a on off switch or a line voltage thermostat Please consult with an electrician or follow all local electrical codes Heater Rating 120 VAC 60Hz Single Phase 1 Amp Enerco Group Inc Gas Fired Low Intensity Infrared Heater Operating Instructions and Owner s Manual Low Voltage Thermostat Wiring Diagram Heaters are normally controlled by thermostat The recommended 24V thermostat connects to the unit as shown i secant d in the diagram below servicing controls wiring errors can cause improper an Heater dangerous operation Verify proper operation after servicing CAUTION Label all wires prior t

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