INSTALLATION AND SERVICE MANUAL High Intensity
Contents
1. INSTRUCTIONS APPLY TO O Installation O Operation O Maintenance HAZARD INTENSITY LEVELS DANGER Failure to comply will result in severe personal injury or death and property damage WARNING Failure to comply could result in severe personal injury or death and or property damage CAUTION Failure to comply could result in minor personal injury and or property damage CONTENTS General Information and Installation Codes 2 Canadian Codes cccceceeeeeeeeeseeeeeeeaee 3 Unpacking cceeecceeee eee ects ee eeeeaeeees 4 Restrictions arira a a 4 Basic Dimensions 4 Clearance to Combustibles 5 Mounting Considerations neeese eeen 6 Ventilation Requirements e eeeseeneeeeeen 7 Gas Supply cccececee eee ee eens eeeeeeeeeees 7 Electrical Supply 2 c 0cceeeeeeeeeeeeeeeees 8 Installation 10 Ignition Operation and Shutdown 12 Gas Pressure and Gas Conversion 16 Maintenance cccccc ccc cecee cee eeseeeeeeeeeuas 16 z ACCESSOMEGS iaia a a a a a 17 Replacement Parts 0c eceeeeeeeeee ees 17 Troubleshooting eceeeeeeeeeeeeeeeees 18 Model Numbers ATTENTION Page 2 1 GENERAL INFORMATION AND INSTALLATION CODES A WARNING A e These infrared heaters are the unvented type Products of combustion generated are released into the space being heated When operati2. MODINE A 9 508 3 June 2012 INSTALLATION AND SERVICE MANUAL High Intensity Model MHR Control Codes A WARNING A Improper installation adjustment alteration service or maintenance can cause property damage injury or death Read the installation operating and service maintenance instructions thoroughly before installing or servicing this A WARNING A Gas fired appliances are not designed for use in hazardous atmospheres containing flammable vapors or combustible dust or atmospheres containing chlorinated or halogenated hydrocarbons 1 FOR YOUR SAFETY 3 The use and storage of gasoline or other flammable 4 vapors and liquids in the vicinity of this appliance is 5 hazardous 6 FOR YOUR SAFETY 7 If you smell gas 8 1 Open windows 9 2 Do not touch electrical switches 10 3 Extinguish any open flame 11 4 Immediately call your gas supplier 12 5 If gas supplier cannot be reached call fire 13 department NOT FOR RESIDENTIAL USE These heaters must NOT be used in the tollowing applications Enclosed swimming pool areas Areas with contaminated atmospheres Areas requiring explosion proof equipment Process heating applications Section 18 Mount a copy of these instructions adjacent to the heater and retain a copy for future reference Gas Fired Infrared Unit Heaters 47 48 97 98 27 67 38 and 88 ER Qe Epa NZ KE emme A
3. s green ground screw inside the control box Blue wire 24 VAC from thermostat to the heater s blue wire at the control box 24VAC 2 STAGE DIRECT SPARK IGNITION DSI MODELS e Connect the electrical supply wiring as specified in the Electrical Supply section to the heater wiring shown in figures in the Ignition and Operation section Connect incoming thermostat wires to the heater as follows Green wire with 10 ring terminal ground to the heater s green ground screw inside the control box White wire with 10 ring terminal neutral to the heater s green ground screw inside the control box Blue wire 24 VAC low heat to the heater s blue wire at the control box Red wire 24 VAC high heat to the heater s red wire at the control box Page 12 12 IGNITION OPERATION AND SHUTDOWN 1 OF 4 LIGHTING INSTRUCTIONS FOR ALL 120 VAC AND 24 VAC DIRECT SPARK IGNITION DSI MODELS CoN Oy Su Co Some heater models may have an ON OFF knob on theCombination Gas Valve CGV Set gas cock by others toOFF position Turn electrical supply OFF Wait at least five 5 minutes Set thermostat above room temperature Set gas cock by others toON position Turn electrical supply ON Set thermostat at desired temperature If heater does not light repeat steps 1 7 IMPORTANT The 120 VAC and 24 VAC control systems cannot determine the presence of flame if they are not electrically grounded to the burner they will lockout and sh
4. or below 40 F 40 Installed at angles not approved for the model Installed for other than space heating applications Installed for residential use HEATER IS NOT FOR RESIDENTIAL USE Installed outdoors Installed in enclosed swimming pool areas Altered Units are completely factory assembled and tested 5 BASIC DIMENSIONS FIGURE 1 LENGTHS WIDTH AND HEIGHT 330mm 8 500 216mm 23 719 603mm l WY eg Note Four 4 mounting holes 375 9 5mm diameter for balanced suspension are located by dimensions B x 13 000 330mm LEGEND 15 312 389 14 625 372 16 625 422 90 45 26 13 23 938 608 23 250 591 25 250 641 100 50 29 15 110 160N 32 47N 150 100 44 29 160L 200 47L 59 200 100 59 29 2 stage models L LP propane gas N Natural gas Page 5 6 CLEARANCE TO COMBUSTIBLES A WARNING A Single or multi heater placement must be such that continuous operation of the heater or heaters will not cause combustible materials or materials in storage to attain a temperature in excess of 150 F 66 C Under no circumstances should this heater be installed in a combustible atmosphere or in a location where the heater controls can be subjected to ambient temperature in excess of 150 F 66 C These heaters MUST be mounted with minimum clearances between the combustion surface and combustible materials See Table 1 Clearance to Combustibles Requirements and
5. 1 H2 Heater 2 GGS Green Ground Screw inside control box BL Blue Wire 24 VAC call for LOW heat R on heater Red Wire 24 VAC call for HIGH heat Field wiring having a minimum temperature rating of at least 14CF 60 C shall be used and supply circuit wiring shall have a minimum size of 18 AWG 0 8mm Use 18 4 solid class2 thermostat cable between heater and thermostat with a maximum length of 125 fee 38m See common notes at the bottom of the page COMMON NOTES FOR FIGURES 4 5 AND 6 e Mechanical ventilation interlock required when all combustion air is provided by a mechanical air supply system 10 ring terminal required for ground service conductor by others to attach to green ground screw on heater The heater control is extremely polarity sensitive and the heater will cycle on and off erratically if the electrical supply is not wired correctly Have a qualified electrician check that the electrical supply circuit is properly grounded and that the electrical supply polarity is correct All components purchased separately All wiring provided by others 11 INSTALLATION 1 OF 2 Before installing heater check the supporting structure to determine it has sufficient load carrying capacity to support the weight The heater shall be supported independent of gas and electric supply lines Hangers and brackets shall be of noncombustible material The heater should be supported by chains or drop rods o
6. 6 4 25 5 29 0 7 8 8 8 23 0 26 5 7 0 8 1 200 59 y _ 2 E s M 200 100 59 29 20 5 25 0 6 2 7 6 18 5 22 5 5 6 6 9 27 0 31 0 8 2 9 4 24 5 28 0 7 5 8 5 2 stage models TABLE 3 RECOMMENDED DISTANCE FROM A WALL FOR HEATERS MOUNTED AT 5 MODELS With With Optional Maximum Distance Standard Reflector Parabolic Reflector Between Heater Rows MBTUH kW feet m feet m feet m o er no es n w 80 100 23 29 90 45 26 13 16 4 9 12 3 7 110 33 5 100 50 29 14 110 125 32 37 120 80 35 23 130 150 38 44 150 100 44 29 160 200 47 59 160 80 47 23 24 7 3 20 6 1 130 39 6 200 100 59 29 2 stage models 18 5 5 14 4 3 115 35 1 20 6 1 15 4 6 120 36 6 Page 7 8 VENTILATION REQUIREMENTS WARNING Insufficient ventilation may result in health problems carbon monoxide poisoning or death Always vent enclosed spaces and buildings according to national state provincial and local codes Improper venting may result in asphyxiation fire explosion injury or death These heaters must be installed and serviced ONLY by trained and qualified gas installation and service personnel The installing contractor must be familiar with all the various requirements and is responsible for installing each heater in compliance with all applicable local and national codes These infrared heaters are the unvented type Products of combustion generated are released into the s
7. Clean pilot check pilot orifice and alignment 5 Pilot flame sensor defective 5 Replace sensor 6 Combination gas valve defective 6 Replace combination gas valve Page 19 17 TROUBLESHOOTING 2 OF 2 Heater will not 1 Thermostat defective 1 Replace thermostat turn off Controls 1 Heater mounted incorrectly 1 See Mounting and Suspending sections overheating Burning of gas 1 Heater mounted incorrectly 1 See Mounting and Suspending sections inside burner 2 Gas leaking from manifold control 2 Check joints with soap solution tighten as needed flash back assembly or pilot joints causing gas ignition at orifice Carbon formation on ceramic TERO eur 4 See rating plate on heater and adjust pressure s 5 Consult sales agent or factory 1 Foreign matter behind the ceramic See Maintenance section ceramic surface surface 2 _ Replace burner assembly Low ceramic 1 Clean with a bottle brush surface 2 Foreign matter in venturi 2 See Maintenance section temperature 3 Orifice partially blocked 3 See Maintenance section Supply gas pressure low Adjust supply regulator to 7 WC 18cm WC for natural gas or 11 WC 28cm WC for propane 5 Manifold gas pressure low 5 Adjust heater regulator to 6 WC 15cm WC for natural gas or 10 WC 25cm WC for propane 6 Manifold misaligned from excessive 6 Replace manifold torque applied on pipe at installation 7 Flue gases not adequately ventilated
8. F 150 C shall be used and supply circuit wiring shall have a minimum size of 16 AWG 1 0mm Make connections as shown in Figure 4 120 VAC DSI Heater Electrical Supply and Thermostat Wiring 24 VAC DIRECT SPARK IGNITION DSI SINGLE STAGE MODELS Electrical supply 24 VAC 60 Hz 1 Phase Maximum total heater current draw 0 66 Amps Total heater power consumed 15 9 VA 15 9W 2 wire field service required Field wiring having a minimum temperature rating of at least 302 F 150 C shall be used and supply circuit wiring shall have a minimum size of 16 AWG 1 0mm Make connections as shown in Figure 5 24 VAC DSI Single Stage Heater Electrical Supply and Thermostat Wiring 24 VAC DIRECT SPARK IGNITION DSI 2 STAGE MODELS Electrical supply 24 VAC 60 Hz 1 Phase Maximum total heater current draw 0 96 Amps Total heater power consumed 23 1 VA 23 1W 3 wire field service required to 2 stage thermostat 4 wire thermostat cable required from thermostat to heater Field wiring use 18 4 18 AWG 0 8mm 4 conductor solid class 2 thermostat cable having a minimum insulation temperature of 140 F 60 C between thermostat and heater Maximum length is 125 feet 38m Make connections as shown in Figure 6 24 VAC DSI 2 Stage Heater Electrical Supply and Thermostat Wiring Page 9 10 ELECTRICAL SUPPLY 2 OF 2 FIGURE 4 120 VAC DSI HEATER ELECTRICAL SUPPLY AND THERMOSTAT WIRING LEGEND MV 120 120 VAC Supply Vo
9. Flame sensor wire loose or damaged a Replace wire harness to ignition detection control erratic operation 3 No electrical earth ground Provide electrical earth ground 4 Electrical supply line voltage amp neutral A Correct electrical supply polarity polarity reversed Heat on pilot flame sensor insufficient 5 Clean pilot check pilot orifice and alignment No pilot 1 _ Purge air from gas line 5 Pilot line orifice or passage blocked Z Check and clean per Maintenance section Pilot solenoid valve inoperative Replace combination gas valve Pilot goes out on Heat on pilot flame sensor insufficient Clean pilot check pilot orifice and alignment 100 shut off 3 Pilot flame sensor location improper z Correct position with respect to pilot when hold down button is released 3 Manifold gas pressure low See rating plate on heater and adjust pressure 4 Poor contact at valve end of sensing A Ensure clean and proper contact element Pilot flame sensor defective Replace pilot flame sensor Pilot interrupter in combination gas Replace combination gas valve valve defective Pilot burning Thermostat or manual switch open Raise the thermostat setting or close switch no gas to main 3 Manual valve closed on combination 3 Turn valve to ON position burner s gas valve 3 No power to solenoid in combination 3 Check power supply and furnish proper voltage gas valve 4 Heat on pilot flame sensor insufficient 4
10. LIMITED HEREIN SHALL BE LIMITED TO ONE YEAR FROM DATE OF SHIPMENT FROM SELLER FOR GAS FIRED PRODUCTS INSTALLED IN HIGH HUMIDITY APPLICATIONS AND UTILIZING STAINLESS STEEL HEAT EXCHANGERS BUYER S REMEDY FOR BREACH AS LIMITED HEREIN SHALL BE LIMITED TO TEN YEARS FROM DATE OF SHIPMENT FROM SELLER These warranties are issued only to the original owner user and cannot be transferred or assigned No provision is made in these warranties for any labor allowance or field labor participation Seller will not honor any expenses incurred in its behalf with regard to repairs to any of Seller s products No credit shall be issued for any defective part returned without proper written authorization including but not limited to model number serial number date of failure etc and freight prepaid OPTIONAL SUPPLEMENTAL WARRANTY Provided a supplemental warranty has been purchased Seller extends the warranty herein for an additional four 4 years on certain compressors Provided a supplemental warranty has been purchased Seller extends the warranty herein for an additional four 4 years or nine 9 years on certain heat exchangers EXCLUSION OF CONSUMABLES amp CONDITIONS BEYOND SELLER S CONTROL This warranty shall not be applicable to any of the following items refrigerant gas belts filters fuses and other items consumed or worn out by normal wear and tear or conditions beyond Seller s control including without limitation as to
11. Units Electric Units Cassettes Vertical Unit Ventilators Compressors Vertical Unit Ventilators Burners High Intensity Infrared Units Sheet Metal Parts All Products ONE YEAR FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER WITHIN ONE YEAR FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION OR WITHIN EIGHTEEN MONTHS FROM DATE OF SHIPMENT FROM SELLER WHICHEVER OCCURS FIRST As Modine Manufacturing Company has a continuous product improvement program it reserves the right to change design and specifications without notice TP MODINE Modine Manufacturing Company 2012 Commercial Products Group Modine Manufacturing Company 1500 DeKoven Avenue Racine WI 53403 Phone 1 800 828 4328 HEAT www modinehvac com
12. so that no portion of an aircraft that can occupy the area that is within the clearance to combustible material as marked on the heater rating plate When an infrared heater is installed in either a repair or shop area that communicates with an aircraft hangar the minimum clearance from the floor to the infrared heater shall be 8 ft 2 4m An infrared heater shall not be located in an area of an aircraft hangar where it can be subjected to physical damage by aircraft cranes movable scaffolding or other objects GARAGES These overhead heaters are suitable for use in garages when installed in accordance with the Canadian Natural Gas and Propane Installation Code CAN CSA B149 1 latest edition The minimum clearance from the radiant face of the infrared heater to the upper surface of the highest vehicle shall not be less than the certified clearance from combustible material as indicated on the heater installed in a garage or a car wash Provision shall be made to maintain these minimum specified clearances by an interlock that shuts off the gas supply until the required clearances have been re established a protective bar or a device that provides a warning when the clearances are not being maintained Where an infrared heater is installed in a garage and the clearance from combustible material cannot be maintained when the vehicle is raised on a hoist an electrical interlock shall be provided to shut off the burner and prevent its operation
13. supply and thermostatic control e f any of the original wire as supplied with the appliance must be replaced it must be replaced with wiring material having a temperature rating of at least 302 F 150 C and a minimum size of 16 AWG 1 0mm LEGEND Function Symbol Item Description Connecting Wire Color ____ Electrical Supply 24 VAC High Heat Supply by others Red Thermostatic Control 24 VAC Low Heat Supply by others Blue Common Neutral by others White with Ring Terminal by others Green with Ring Terminal by others WNB Wire Nut by others WN Wire Nut Ignition Detection Control Ignition Detection Control Ignition Cable to Spark Electrode Orange Flame Sensor Input Yellow Ground Green with Ring Terminal Ground to Combination Gas Valve Green 24 VAC Low Heat Supply Input Blue R 1 24 VAC to Combination Gas Valve Red Combination Gas Valve Combination Gas Valve 24 VAC to Combination Gas Valve Ground to Combination Gas Valve High Heat Gas Valve High Heat Valve 24 VAC to High Heat Valve Ground to High Heat Valve FIGURE 13 MILLIVOLT MANUAL IGNITION ELECTRICAL CONNECTION DIAGRAM TOP OF GAS VALVE R g we Sl LEGEND CASI AR Symbol Item Description E Sat A Wires on heater to millivolt generator PLOT aha J 2 5 M A B Wires from thermostat Thermostat included
14. with iB heater Wiring by others it C Gas flow direction Page 16 13 GAS PRESSURE AND GAS CONVERSION GAS PRESSURE e Whether the heater is on or off the main gas supply line pressure must be limited to 14 inches 35cm of water column WC 1 2 PSI If the gas supply line pressure can go above 14 WC 35cm WC at any time a separate positive lockup high pressure regulator must be used Always check local codes for gas venting requirements for high pressure regulators High pressure regulators will NOT turn off the flow of gas The minimum gas supply line pressure measured at the inlet pressure tap of the heater regulator must in no case be lower than 7 WC 18cm WC for natural gas and 11 WC 28cm WC for LP propane gas when this heater and ALL other gas burning equipment are operating at maximum capacity Use a water or red oil manometer when checking gas pressures DO NOT USE A DIAL GAUGE See Table 5 Gas Pressure Requirements TABLE 5 GAS PRESSURE REQUIREMENTS TYPE SUPPLY PRESSURE MANIFOLD PRESSURE AT OF Water Column WC TAP IN VALVE GAS Minimum Maximum _ Water Column WC Natural 7 inches 18cm 14 inches 35cm 6 inches 15cm LP Propane 11 inches 28cm 14 inches 35cm 10 inches 25cm e Gas pressure measurement equivalents are 14 WC 1 2 PSI 35cm WC 35mbar 3 5kPa e Natural gas models are orificed for gas with a gross calorific value of 1000 BTU cubic foot 37MJ m e L
15. 7 See Ventilation Requirements section 8 Gas supply piping too small 8 Increase supply pressure or replace piping 2 Stage transition 1 Ambient temperature is still in low heat 1 Check thermostat manufacturers instructions from low heat to zone of thermostat high heat does 2 Thermostat defective 2 Replace thermostat not happen _High heat valve not opening 3 Replace high heat valve 2 Stage transition 1 Ambient temperature has not reached 1 Allow time for ambient temperature to reach low from high heat to low heat zone of thermostat heat zone of thermostat Check thermostat low heat does not manufacturers instructions happen 2 Thermostat defective 2 Replace thermostat 3 High heat valve not closing 3 Replace high heat valve 18 MODEL NUMBERS MHR 100 S 47 MHR Modine High 30 Natural S Direct Spark 47 Natural 120V Direct Spark 1 Stage Intensity Radiant 50 LP M Millivolt 48 Natural 24V Direct Spark 1 Stage 60 Natural 97 Propane 120V Direct Spark 1 Stage 90 LP 98 Propane 24V Direct Spark 1 Stage 100 Natural 27 Natural Millivolt 1 Stage 120 Natural amp LP 67 Propane Millivolt 1 Stage 150 Natural 38 Natural 24V Direct Spark 2 Stage 160 Natural amp LP 88 Propane 24V Direct Spark 2 Stage 200 Natural COMMERCIAL WARRANTY Seller warrants its products to be free from defects in material and workmanship EXCLUSIVE HOWEVER of failures attributable to t
16. Figure 2 Clearance to Combustibles Diagrams TABLE 1 CLEARANCE TO COMBUSTIBLES REQUIREMENTS NATURAL GAS MODELS 70 100 110 150 175 200 MBTUH 1000 Btu hour 100 50 150 100 200 100 PROPANE GAS MODELS 70 90 120 160 MBTUH 1000 Btu hour a met 16080 CLEARANCE TO COMBUSTIBLES SIDE OF HEATER A 30 ETON 36 ETIN EIUN 117 ENN 122 EE ENN TOP OF HEATER C w Optional Heat Deflector 5 a5 C 34 86 38 97 na na BECOWHEATER OS fe E E P E w Optional Parabolic N D 110 0 279 135 343 165 419 180 457 180 457 Kilowatts 29 15 44 29 59 29 PROPANE GAS MODELS 15 21 26 35 Kilowatts 26 13 35 23 ee Notes 1 30 and 35 MBTUH 9 and 10kW models not available in Canada 2 60MBTUH 18kW models require wire grid in Canada 3 See Table 4 Allowable Mounting Angles in the Installation section na Not available A B C and D refer to Figure 2 Clearance to Combustibles Diagrams 2 stage models FIGURE 2 CLEARANCE TO COMBUSTIBLES DIAGRAMS 3D VIEW 30 60 MBTUH 9 18KW ALL MODELS STACKING HEIGHT a c A E 4 N we a w x 7 L pe a A By Pe D M A OS Symbol Item Description a SNe A Side of heater clearance to combustibles 1 oa ae B Back of heater clearance to combustibles we i ee C Top of heater clearance to combustibles S D pe D Below heater clearance to combustible
17. P Propane gas models are orificed for gas with a gross calorific value of 2500 BTU cubic foot 93MJ m GAS CONVERSION e Itis feasible to convert the type of gas or BTUH kW rating of a heater after it is has been installed Identify the model number and serial number of the heater Consult factory for proper instructions and parts Use of parts other than those provided by the factory voids the warranty and the CSA Design Certification 14 MAINTENANCE e Annual maintenance should be performed as follows ANNUAL MAINTENANCE 1 Disconnect all power sources related to the installation and close the gas supply valve at the heater 2 With compressed air of 20 PSI 140kPa or less blow off all accumulated dust and dirt 3 Blow air over the ceramic tile avoiding gasket material between tile and alternately into the venturi several times in succession Do not damage gasket material between ceramic tiles Damaging gasket material between tiles could lead to burner flashback CAUTION e Always wear protective goggles when cleaning heaters with compressed air e See Figure 14 General Heater Diagram for the location of major components of the heater e See Figure 15 Direct Spark Electrode Installed for the electrode s orientation to and correct distance from the burner assembly s ceramic tile surface FIGURE 14 GENERAL HEATER DIAGRAM LEGEND Symbol Item Description Gas manifold Gas orifice Venturi Optional heat defl
18. S e These overhead heaters are suitable for use in parking structures when installed in accordance with the Standard for Parking Structures NFPA 88A latest edition and are so marked e All flames associated with heating equipment shall be located a minimum of 500 mm 18 in below the floor ceiling assembly or 500 mm 18 in above the floor A WARNING A An overhead heater should be installed so that the minimum clearances marked on the heater will be maintained from vehicles parked below the heater ANSI Z83 19 section 1 25 3 d Page 3 2 CANADIAN CODES The information on this page applies specifically to installations in Canada INSTALLATION CODES These heaters are CSA International Designed Certified and manufactured in compliance with the Standard for Gas Fired High Intensity Infrared Heaters CAN CSA 2 35 latest edition approved by the Canadian Standards Association CSA for indoor installation only The installation must conform with local building codes or in the absence of local codes with the current Canadian Natural Gas and Propane Installation Code CAN CSA B149 1 latest edition Canadian authorities having jurisdiction should be consulted before installations are made to verify local codes and installation procedures The heater shall be protected against physical damage The heater shall not be installed in any location where a flammable vapour combustible dust or fibres or an explosive mixture is present The
19. and a minimum size of 16 AWG 1 0 mm LEGEND Electrical Supply 120 120 VAC Supply by others Black Thermostatic Control _ Winng byothesy SSCS SSCOCOCOC CSCSCO C CCC Cs tC Y WNB Wire Nut by others o OOO MWN Ji Wits Nut Ground Ignition Detection Control RG G reen with Ring Terminal Spark Electrode SE Spark Electrode Orange Combination Gas Valve Page 14 12 IGNITION OPERATION AND SHUTDOWN 3 OF 4 FIGURE 11 24 VAC SINGLE STAGE DIRECT SPARK IGNITION ELECTRICAL CONNECTION DIAGRAM l 24 VAC 60 Hz 1 Phase Heater Maximum Current Draw 0 66 Amps Total Heater Power Consumed 15 9 VA Control is polarity sensitive CGV FS sE R 2 1 3 vol O WN WN R 1 G 2 IDC Y GGS GND 7 lt gt G 1 O WNB i 24 L BL BL a R 1 e Others to provide and install 10 ring terminal required for ground service conductor to attach to green ground screw on heater e See Electrical Supply section for detailed information on electrical supply and thermostatic control e f any of the original wire as supplied with the appliance must be replaced it must be replaced with wiring material having a temperature rating of at least 302 F 150 C and a minimum size of 16 AWG 1 0mm LEGEND Function Symbol Item Description Connecting Wire Color Electrical Supply 24 24 VAC Sup
20. bles section e Heaters should also be located with respect to building construction and equipment so as to provide sufficient clearance and accessibility for servicing and cleaning e See Table 2 Recommended Mounting Height A mounting height lower than the recommended mounting height may be used if personnel are not required to stay directly under the heater e See Table 3 Recommended Distance from a Wall for Heaters Mounted At 5 With With With Optional With Optional MODELS Standard Reflector Standard Reflector Parabolic Reflector Parabolic Reflector AT 5 AT 302 AT 5 AT 302 MBTUH kW feet m feet m feet m feet m Co ta 20 us_e7 eans os_esan soas 26 13 180 185 49 56 145 17 0 44 52 1195 225 5 9 6 9 175 205 5 3 6 2 100 29 j 7 j 7 j p j 100 50 29 15 179 195 52 59 15 0 17 5 4 6 5 3 205 235 6 2 7 2 185 21 5 5 6 6 6 110 32 17 0 20 0 5 2 6 1 15 0 18 0 4 6 5 5 21 0 24 5 6 4 7 5 1190 220 5 8 6 7 120 35 f a 5 5 3 120 80 35 23 175 210 63 64 155 185 4 7 5 6 215 25 0 6 6 7 6 20 0 23 0 6 1 7 0 130 38 18 0 21 0 5 5 6 4 16 0 19 0 4 9 5 8 225 26 0 6 9 7 9 20 5 23 5 6 2 7 2 150 44 j 3 j j 150 100 44 29 185 225 6 6 6 9 16 5 20 0 5 0 6 1 24 0 27 5 7 3 8 4 215 245 6 6 7 5 160 47 j p j g j 160 80 47 23 199 230 5 8 7 0 17 0 20 5 5 2 6 2 25 0 28 5 7 7 8 7 225 255 6 9 7 8 175 51 19 5 23 5 5 9 7 2 17 5 21 0 5 3
21. cording to local codes and or the National Fuel Gas Code ANSI 2223 1 NFPA 54 latest edition Use new clean pipe Inspect and clean out any chips or debris before installing the pipe and fittings Piping joint compound must be resistant to the action of liquefied petroleum LP gases Piping must have a drip leg trap 6 15 cm long at the inlet connection C A first stage pressure regulator is required when gas supply pressure exceeds 14 35cm water column WC When required be sure this regulator is installed with the arrow indicating gas flow pointing in the proper direction E An over pressure protection device OPD may be required in certain jurisdictions Install a 1 8 3 2mm National Pipe Thread NPT plugged tap accessible for test gauge connection immediately upstream of the gas supply connection to the heater F An agency approved flexible gas connector may only be used if permitted by local code G Always use two wrenches when mating pipe connections to the heater Excessive torque on the heater manifold may misalign gas orifices leading to heater malfunction Do not subject gas pressure regulators flex connectors and gas cocks on the heater to test pressure over 14 35cm water column WC while checking for piping leaks All piping joints must be tested for gas leaks with a non corrosive leak detecting solution Purge all gas supply lines of air completely before attempting to ignite heater See Figure 3 Ga
22. e and field connections must be l r r adequate to support heater weight a e Gas and electrical supply lines must not cross over top A NI of heater or in the path of flue products B LEGEND a Symbol Item Description C A 3 8 10mm all thread rigid mount used in a aircraft hangars or where draft conditions may be 7 expected B 1 0 Tenso chain mounting C S hooks 6 3mm diameter wire Crimp all S hooks closed Mounting angle see Table 4 Allowable Mounting Angles Heater gas manifold must be horizontal along the low side of the heater when angle mounting F Heater gas valve Under no circumstances should either the gas or electrical supply lines to the unit be used to provide support in suspension Do not run any gas or electric lines above or below the heater or near the path of the flue products Heaters located in an aircraft hangar or near overhead doors should be rigidly mounted to prevent swinging The installer is responsible for the type of suspension used for the heater If permissible by local code it is recommended that these heaters be suspended with chain and S hooks See Figure 8 Chain Hanging Arrangement Chain with 200 91kg working load 1 0 Tenso is recommended S hooks must be a minimum of 6 3mm diameter wire Chicago Hardware 5 or equal and must be crimped closed after installation See Figure 9 Optional Heater Mounti
23. e heater will cycle on and off erratically if the electrical supply is not wired correctly Have a qualified electrician check that the electrical supply circuit is properly grounded and that the electrical supply polarity is correct The following types of grounding are NOT permitted by code grounding to building structures grounding to electrical conduit grounding to gas pipelines or grounding to water pipelines Electrical power supply takeoff must be connected to a circuit breaker or to a separately fused circuit with a disconnect Neither thermostats nor switches nor field wiring are supplied as standard equipment When thermostats are included to control the temperature of the heated zone they should be incorporated into the electrical circuit as shown in the respective diagrams and be positioned per the thermostat manufacturer s instructions Important In the event of an electrical fault after installation of the appliance preliminary system checks are required to be carried out i e ground continuity polarity and resistance to ground by a trained and qualified electrician Make electrical connection to the heater as described in the Installation section 120 VAC DIRECT SPARK IGNITION DSI MODELS Electrical supply 120 VAC 60 Hz 1 Phase Maximum total heater current draw 0 14 Amps Total heater power consumed 16 8 VA 16 8W 3 wire field service required Field wiring having a minimum temperature rating of at least 302
24. ector Heater flue exhaust path Ceramic tile surface Standard reflector assembly QIT M O O w gt FIGURE 15 DIRECT SPARK ELECTRODE INSTALLED LEGEND A Symbol Item Description aL A Electrode LS B Burner H C Proper installation results in 0 219 0 032 5 6mm 0 8mm clearance from ceramic tile i surface to the sparking tips of the electrode Page 17 15 ACCESSORIES A WARNING A The safe application and use of the supplied equipment is responsibility of the installer user owner and employer The application of this equipment can vary greatly For most applications and use there are available diversified product models and optional safety accessories This equipment may be sold with or without safety accessories The diversity of applications for this heater precludes the establishing or warranting the efficacy of safe operating conditions which may result from its use The installer user owner employer must determine the specific safety requirements The specific safety requirements will vary depending on the location and operating procedures Therefore appropriate safety accessories can only be supplied upon receipt of an order specifying them e The accessories listed below may be obtained from the factory Use of some accessories may change clearance to comb
25. ectrical circuit Gas supply lacking caused control Verify all gas supply valves are open Purge air closed but heater system lockout from gas supply line Turn thermostat off wait 5 not working minutes then reset thermostat For specific 2 Line fuse blown or tripped circuit 2 Replace line fuse or reset breaker control systems breaker see Ignition and 3 Electrical power short 3 Trace and correct short Operation 4 Wiring disconnected 4 Repair see wiring diagram in Ignition section section 5 No electrical earth ground 5 Provide electrical earth ground 6 Electrical supply line voltage amp neutral 6 Correct electrical supply polarity polarity reversed 7 Exhaust fan interlock if used is 7 Replace interlock defective Direct spark fails 1 Combination gas valve not in the ON 1 Turn combination gas valve to ON position to ignite main position burner s 2 Electrode wire loose 2 Reconnect wire 2 Electrode wire broken or frayed 3 Replace electrode 4 Electrode ceramic cracked 4 Replace electrode 5 Electrode improperly located 5 Relocate to correct position 6 Gas valve fails to open when power 6 Replace combination gas valve applied 7 _Supply manifold gas pressure too low L See rating plate on heater and adjust pressure s Ignition detection control defective Replace ignition detection control Unit cycles on Drafty condition _ Shield heater thermostat from drafts and off 3
26. erial plate Do not install heater if it is not rated for the correct altitude Contact factory if in doubt LOCAL APPROVALS e Single stage heaters have been granted local approval by New York City MEA 418 86 E e Single stage heaters have been granted CE approval INSTALLATION CODES The installation must conform with local building codes or in the absence of local codes with the National Fuel Gas Code ANSI 2223 1 NFPA 54 latest edition or the Natural Gas and Propane Installation Code CSA B149 1 In locations used for the storage of combustible materials signs shall be posted to specify the maximum permissible stacking height to maintain required clearances from the heater to the combustibles Natural or mechanical means shall be provided to supply and exhaust combustion and ventilation air at a rate of at least 4 CFM per 1000 BTUH 4 ft min 1000 Btu hr 0 38m min kW input of installed heaters Exhaust openings for removing flue products shall be above the level of the heaters If an external electrical source is utilized the heater when installed must be electrically grounded in accordance with the National Electric Code ANSI NFPA 70 latest edition All NFPA publications are available from the National Fire Protection Association Batterymarch Park Quincy Massachusetts MA 02269 USA AIRCRAFT HANGARS e These overhead heaters are suitable for use in aircraft hangars when installed in accordance with the Standard for Aircraf
27. fold A angled upward ONLY in this case the gas valve B MUST be toward the high side LEGEND Symbol Item Description C Gas Manifold i B Gas Valve Mounting Angle see Table 4 Allowable Mounting Angles The heater should be raised and suspended in accordance with the preceding instructions in this section Connect heater to the gas supply in accordance with the Gas Supply section The heater controls are extremely polarity sensitive and will not operate properly if the electrical supply is not wired correctly Connect heater to the electrical supply in accordance with the following instructions 120VAC DIRECT SPARK IGNITION DSI MODELS Connect the electrical supply wiring as specified in the Electrical Supply section to the heater wiring shown in figures in the Ignition and Operation section Connect incoming thermostat wires to the heater as follows Green wire with 10 ring terminal ground to the heater s green ground screw inside the control box White wire neutral to the heater s white wire at the control box Black wire 120 VAC from thermostat to the heater s black wire at the control box 24VAC SINGLE STAGE DIRECT SPARK IGNITION DSI MODELS Connect the electrical supply wiring as specified in the Electrical Supply section to the heater wiring shown in figures in the Ignition and Operation section Connect incoming thermostat wires to the heater as follows Green wire with 10 ring terminal ground to the heater
28. generality polluted or contaminated or foreign matter contained in the air or water utilized for heat exchanger condenser cooling or if the failure of the part is caused by improper air or water supply or improper or incorrect sizing of power supply APPLICABLE WARRANTY PERIOD TEN YEARS FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER WITHIN TEN YEARS FROM DATE OF RESALE BY BUYER OR ANY OTHER USER WITHIN TEN YEARS FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION OR WITHIN ONE HUNDRED TWENTY SIX MONTHS FROM DATE OF SHIPMENT FROM SELLER WHICHEVER Heat Exchangers Low Intensity Infrared Units Compressors Condensing Units for Cassettes FIVE YEARS FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER WITHIN FIVE YEARS FROM DATE OF RESALE BY BUYER OR ANY OTHER USER WITHIN FIVE YEARS FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION OR WITHIN SIXTY SIX MONTHS FROM DATE OF SHIPMENT FROM SELLER WHICHEVER OCCURS FIRST Burners Low Intensity Infrared Units TWO YEARS FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER WITHIN Other TWO YEARS FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION OR WITHIN Components excluding Heat Exchangers Coils Condensers Burners Sheet Metal THIRTY MONTHS FROM DATE OF SHIPMENT FROM SELLER WHICHEVER OCCURS FIRST Heat Exchangers Coils Indoor and Outdoor Duct Furnaces and System Units PSH BSH Steam Hot Water Units Oil Fired
29. he product serial plate by more than 5 on gas fired and oil fired units or if the product in the judgment of SELLER has been installed in a corrosive atmosphere or subjected to corrosive fluids or gases been subjected to misuse negligence accident excessive thermal shock excessive humidity physical damage impact abrasion unauthorized alterations or operation contrary to SELLER S printed instructions or if the serial number has been altered defaced or removed BUYER AGREES THAT IN NO EVENT WILL SELLER BE LIABLE FOR COSTS OF PROCESSING LOST PROFITS INJURY TO GOODWILL OR ANY OTHER CONSEQUENTIAL OR INCIDENTAL DAMAGES OF ANY KIND RESULTING FROM THE ORDER OR USE OF ITS PRODUCT WHETHER ARISING FROM BREACH OF WARRANTY NONCONFORMITY TO ORDERED SPECIFICATIONS DELAY IN DELIVERY OR ANY LOSS SUSTAINED BY THE BUYER Component Applicable Models Heat Exchangers Gas Fired Units except PSH BSH OCCURS FIRST BUYER S REMEDY FOR BREACH OF WARRANTY EXCLUSIVE OF ALL OTHER REMEDIES PROVIDED BY LAW IS LIMITED TO REPAIR OR REPLACEMENT AT THE FACTORY OF SELLER ANY COMPONENT WHICH SHALL WITHIN THE APPLICABLE WARRANTY PERIOD DEFINED HEREIN AND UPON PRIOR WRITTEN APPROVAL BE RETURNED TO SELLER WITH TRANSPORTATION CHARGES PREPAID AND WHICH THE EXAMINATION OF SELLER SHALL DISCLOSE TO HAVE BEEN DEFECTIVE EXCEPT THAT WHEN THE PRODUCT IS TO BE USED BY BUYER AS A COMPONENT PART OF EQUIPMENT MANUFACTURED BY BUYER BUYER S REMEDY FOR BREACH AS
30. he use of materials substituted under emergency conditions for materials normally employed This warranty covers replacement of any parts furnished from the factory of Seller but does not cover labor of any kind and materials not furnished by Seller or any charges for any such labor or materials whether such labor materials or charges thereon are due to replacement of parts adjustments repairs or any other work done This warranty does not apply to any equipment which shall have been repaired or altered outside the factory of Seller in any way so as in the judgment of Seller to affect its stability nor which has been subjected to misuse negligence or operating conditions in excess of those for which such equipment was designed This warranty does not cover the effects of physical or chemical properties of water or steam or other liquids or gases used in the equipment BUYER AGREES THAT SELLER S WARRANTY OF ITS PRODUCTS TO BE FREE FROM DEFECT IN MATERIAL AND WORKMANSHIP AS LIMITED HEREIN SHALL BE IN LIEU OF AND EXCLUSIVE OF ALL OTHER WARRANTIES EITHER EXPRESS OR IMPLIED WHETHER ARISING FROM LAW COURSE OF DEALING USAGE OF TRADE OR OTHERWISE THERE ARE NO OTHER WARRANTIES INCLUDING WARRANTY OF MERCHANTABILITY OR FITNESS FOR PURPOSE WHICH EXTEND BEYOND THE PRODUCT DESCRIPTION CONFIRMED BY BUYER AND SELLER AS OF THE DATE OF FINAL AGREEMENT This warranty is void if the input to the product exceeds the rated input as indicated on t
31. heater shall not be installed in a residential or care or detention occupancy building The heater shall be provided with mechanical ventilation for combustion and ventilation air 1 that is so located that products of combustion from each heater are effectively removed outdoors 2 that has a ventilation volume of at least 3 CFM per 1000 BTUH 300 cfm 142 dm s for each 100 000 Btuh 30kW input or fraction there of and 3 is sufficient to maintain the level of carbon dioxide at less than 5000 ppm measured 6 ft 2m above the work area The heater shall have the ventilation system so interlocked that any reduction of the volume of airflow required in the above note for a heater or group of heaters will cause the shutdown of that heater or group of heaters The heater shall not be installed in an exit passageway or stairway within 8 ft 2 5m measured horizontally from an exit door The heater shall be provided with clearance from combustible materials as certified and indicated on the heater If an external electrical source is utilized the heater when installed must be electrically grounded in accordance with the Canadian Electric Code CAN CSA C22 1 latest edition AIRCRAFT HANGARS These overhead heaters are suitable for use in aircraft hangars when installed in accordance with the Canadian Natural Gas and Propane Installation Code CAN CSA B149 1 latest edition A heater located in an aircraft storage or servicing area shall be installed
32. ltage Supply Neutral GND Earth Ground MV Mechanical Ventilation VR Ventilation Relay SW Ventilation Interlock Switch normally opened TS Thermostat H1 Heater 1 H2 Heater 2 GGS Green Ground Screw inside control box WwW White Wire Neutral BK Black Wire 120 VAC call for heat Field wiring having a minimum temperature rating of at least 302F 150 C shall be used and supply circuit wiring shall have a minimum size of 16 AWG 1 0mm See common notes at the bottom of the page FIGURE 5 24 VAC DSI SINGLE STAGE HEATER ELECTRICAL SUPPLY AND THERMOSTAT WIRING H1 H2 LEGEND 24 24 VAC Supply Voltage GND Earth Ground MV Mechanical Ventilation VR Ventilation Relay SW Ventilation Interlock Switch normally opened TS Thermostat H1 Heater 1 H2 Heater 2 GGS Green Ground Screw inside control box BL Blue Wire 24 VAC call for heat e Field wiring having a minimum temperature rating of at least 302F 150 C shall be used and supply circuit wiring shall have a minimum size of 16 AWG 1 0mm e See common notes at the bottom of the page FIGURE 6 24 VAC DSI 2 STAGE HEATER ELECTRICAL SUPPLY AND THERMOSTAT WIRING LEGEND 24 24VAC Supply Voltage Supply Neutral GND Earth Ground MV Mechanical Ventilation VR Ventilation Relay SW Ventilation Interlock Switch normally opened 2ST 2 Stage Thermostat H1 Heater
33. ng 30 60 MBTUH 9 18kW Models Only for a mounting option limited to models with only one burner Page 11 11 INSTALLATION 2 OF 2 FIGURE 8 CHAIN HANGING ARRANGEMENT SIDE VIEW INSTRUCTIONS FOR USING OPTIONAL CHAIN KITS Securely attach long chains to overhead building structure with S hooks A 2 Attach the other end of the long chains to the back of the heater with S hooks B 3 Rech one end of the 11 28cm short chains to the front of the heater with S hooks C 4 Attach the other end of the short chains to the long chains with S hook D by placing the S hooks D in a loop of the long chain 5 Check heater mounting angle E Adjust heater mounting angle E by moving S hooks D of the short chain along the length of the long chain 6 Check to make sure heater is level Crimp all S hooks closed A B C and D LEGEND Item Description A S hook of long chain connected to overhead building structure mounting hardware 55 140cm long chain with S hooks attached to each end B S hook of long chain connected to back of heater C D 11 28cm short chain with S hooks attached to each end D J S hook of short chain connected to a link ofthe long chan Mounting Angle see Table 4 Allowable Mounting Angles FIGURE 9 OPTIONAL HEATER MOUNTING 30 60 MBTUH 9 18kW MODELS ONLY e 30 60 MBTUH 9 78kW models ONLY have the option of mounting with the B A gas mani
34. ng heaters air for ventilation MUST be provided as per the Ventilation Requirements section GENERAL INFORMATION e These heaters are CSA International Designed Certified and manufactured in compliance with the Standard for Gas Fired High Intensity Infrared Heaters ANSI Z83 19 CSA 2 35 latest edition approved by the American National Standards Institute ANSI and the Canadian Standards Association CSA for indoor installation only These heaters are approved for commercial and industrial installation only These heaters MUST be installed and serviced ONLY by trained and qualified gas installation and service personnel The installing contractor must be familiar with all the various requirements and is responsible for installing each heater in compliance with these instructions and all applicable codes of all authorities having jurisdiction local state provincial and national These heaters should not be installed in buildings with uninsulated metal roof decks Uninsulated metal roof decks will cause condensation of water vapor contained in the heater flue gas on the inside of the building Metal roof decks must be insulated using built up insulation and roofing on the exterior or inside insulation that is not permeable to water vapor Interior insulation that is permeable to water vapor must be completely sealed with a vapor barrier HIGH ALTITUDE e These heaters are manufactured for use at the specific altitude range stated on the heater s
35. nob depressed in PILOT position and held until millivolt generator is heated sufficiently to keep pilot flame going approximately 1 minute Knob is turned to ON position On call for heat thermostat will complete circuit to gas valve as needed Heater will ignite from standing pilot flame On pilot outage millivolt generator will cool and interrupt circuit to gas valve Both main and pilot gas are turned OFF automatically See Figure 13 Millivolt Manual Ignition Electrical Connection Diagram for heater wiring SHUTDOWN To shutdown the heater fora week or less switch off the electrical supply to the heater To shutdown the heater for more than one week switch off the electrical supply to the heater and turn off the gas supply at the gas isolation valve Page 13 12 IGNITION OPERATION AND SHUTDOWN 2 OF 4 FIGURE 10 120 VAC DIRECT SPARK IGNITION ELECTRICAL CONNECTION DIAGRAM 120 VAC 60 Hz 1 Phase Heater Maximum Current Draw 0 14 Amps Total Heater Power Consumed 16 8 VA BK 2 R 2 Control is polarity sensitive Others to provide and install 10 ring terminal required for ground service conductor to attach to green ground screw on heater See Electrical Supply section for detailed information on electrical supply and thermostatic control If any of the original wire as supplied with the appliance must be replaced it must be replaced with wiring material having a temperature rating of at least 302 F 150 C
36. pace being heated Ventilation is required to dilute and remove the products of combustion and provide fresh air for efficient combustion Natural or mechanical means shall be provided to supply and exhaust air at a rate of at least 4 CFM per 1000 BUTH 4 ft min 1000 Btu hr 0 38m min kW input of installed heaters ANSI Z223 1 NFPA 54 section 10 18 Exhaust openings for removing flue products shall be above the level of the heaters ANSI Z223 1 NFPA 54 section 10 18 Infrared Heaters Air for combustion ventilation and dilution of flue gases shall be obtained by application of one of several methods described in the National Fuel Gas Code ANSI Z223 1 NFPA 54 section 9 3 Air for Combustion and Ventilation The ventilation technical information outlined in the current ASHRAE Handbooks should be observed when locating vents Local codes may permit the use of humidistat control to remove water vapor and products of combustion Humidistat settings will typically be in the 40 55 relative humidity range e For installations in Canada see the Canadian Codes section 9 GAS SUPPLY WARNING Do not install any gas piping above the heater or in heat zones The gas supply piping shall NOT be used to support the heater All components of a gas supply system must be leak tested prior to placing equipment into service NEVER test for gas leaks with an open flame Use non corrosive leak detecting solution All gas piping must be installed ac
37. ply by others Blue Thermostatic Control GND Ground by others Green with Ring Terminal by others Wiring Wiring by others WNB Wire Nut by others WN Wire Nut Green Ground Screw Inside Control Box Ignition Detection Control Ignition Detection Control Ignition Cable to Spark Electrode Orange Flame Sensor Input Yellow Ground Green with Ring Terminal Ground to Combination Gas Valve Green 24 VAC Supply Input Blue 24 VAC to Combination Gas Valve Red Spark Electrode Spark Electrode Combination Gas Valve Combination Gas Valve 24 VAC to Combination Gas Valve Red Ground to Combination Gas Valve Green Page 15 12 IGNITION OPERATION AND SHUTDOWN 4 OF 4 FIGURE 12 24 VAC 2 STAGE DIRECT SPARK IGNITION ELECTRICAL CONNECTION DIAGRAM l 24 VAC 60 Hz 1 Phase Maximum Current Draw 0 96 Amps HHV G 4 CGV G 4 FS se Total Power Consumed 23 1 VA Control is polarity sensitive R 3 R2 __ G3 Y o WNB WN WN OF e Others to provide and install 24H 10 ring terminals required for oe ee 3 R 1 G 2 ground service conductor and IDC for common neutral service 5 og 2 TB Y f conductor to attach to green i S eas ground screw on heater 1 OND T rr aA SE ys G 1 G 1 o WNB i S 2 24L BL BL R 1 e See Electrical Supply section for detailed information on electrical
38. r brackets fixed to vertical surfaces which have been previously installed The specified clearance to combustible materials must be maintained See Clearance to Combustibles section Heaters mounting angle must be within the range allowed as listed in Table 4 Allowable Mounting Angles TABLE 4 ALLOWABLE MOUNTING ANGLES SINGLE STAGE HEATERS 2 STAGE HEATERS NET MODEL WEIGHT MBTUH kW Ibs kg 30 60 9 18 24 11 ALLOWABLE MOUNTING ANGLE RANGE MODEL MBTUH kW 90 45 150 100 _ 44 29 NET WEIGHT Ibs kg 26 13 42 19 ALLOWABLE MOUNTING ANGLE RANGE 175 200 51 59 160 80 47 23 200 100 59 29 DO NOT ANGLE HEATERS MORE THAN 30 These heaters may be mounted rigidly with 3 8 10mm all thread rigid mount hangers or they may be suspended with chain and S hooks Local codes may require rigid mounting Check local codes for mounting requirements and permission to use flexible gas connectors It is recommended that either the gas connection piping or the mounting be flexible to prevent fatigue failure of the gas connection from vibration or thermal expansion For proper operation the heater must be level whether horizontal or angle mounted When angle mounted all models must be installed with the gas manifold located on the low end See Figure 7 Typical Heater Mounting Chain or Rigid FIGURE 7 TYPICAL HEATER MOUNTING CHAIN OR RIGID e Overhead structur
39. resumes Sparking may continue for the full 15 seconds before stopping Should the burner fail to light or flame is not detected during the first trial for ignition period the CGV is de energized and the IDC starts the 15 second inter purge sequence before another ignition trial After 15 seconds the IDC begins two 2 more ignition trials If the burner fails to light after the third trial the IDC will de energize the CGV and go into lockout mode For lockout recovery reset the thermostat below the ambient temperature or disconnect electrical power supply for 5 seconds See Figure 10 120 VAC Direct Spark Ignition Electrical Connection Diagram for heater wiring See Figure 11 24 VAC Single Stage Direct Spark Ignition Electrical Connection Diagram for heater wiring See Figure 12 24 VAC 2 Stage Direct Spark Ignition Electrical Connection Diagram for heater wiring LIGHTING INSTRUCTIONS FOR MILLIVOLT MANUAL IGNITION MODELS Set thermostat below room temperature Wait five 5 minutes Turn gas valve to PILOT position Depress gas valve knob and light pilot burner while holding down the gas valve knob for one 1 minute or until pilot flame remains lighted when knob is released Turn gas valve knob counter clockwise to ON position Set thermostat to desired temperature If heater does not light repeat steps 1 6 SEQUENCE OF OPERATION FOR MILLIVOLT MANUAL IGNITION MODELS 1 2 3 4 Pilot is manually ignited with gas valve k
40. rial and model numbers from the heater serial plate to assure proper parts are ordered PARTS e Combination Gas Valve e Ignition Detection Control e Spark Electrode e Burner Ceramic Tile Burner Assembly BURNER REPLACEMENT e A burner Ceramic Tile Burner Assembly can be replaced easily without taking the heater down from its mounted location See Figure 16 Burner Replacement FIGURE 16 BURNER REPLACEMENT BURNER REMOVAL INSTRUCTIONS LEGEND Step 1 Remove screw A and slide burner B backward Symbol Item Description Step 2 Pull burner B up and outward A Screw Reverse the procedure to re install burner B Burner Ceramic Tile Burner Assembly Page 18 17 TROUBLESHOOTING 1 OF 2 SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION Gas Odor 1 Gas pipe joints loose 1 Check joints with non corrosive leak detection fluid tighten as needed New Installation 1 Heaters not isolated during high of heaters not pressure leak testing of gas lines working 2 All gas lines not completely bled of air 2 Disconnect flex hose at each heater until gas is present Connect flex hose and leak test 3 Gas supply regulator reversed 3 Remove and install properly 4 Electrical supply line voltage amp neutral 4 Correct electrical supply polarity polarity reversed gt Gas supply valves not opened l Open all manual gas supply valves Gas supply regulator sticking Replace gas supply regulator El
41. s H Fe a E Mounting angle see Table 4 Allowable Mounting Angle TRR oo H Maximum stacking height of combustible materials 1 2 M Mounting height In locations used for the storage of combustible materials signs shall be posted to specify the maximum permissible stacking height to maintain required clearances from the heater to combustibles ANSI Z233 1 NFPA 54 The stated clearance to combustibles represents a surface temperature of 90 F 50 C above room temperature Building materials with low heat tolerance such as plastic vinyl siding canvas tri ply etc may be subject to degradation at lower temperatures It is the installer s responsibility to assure that adjacent materials are protected from degradation ANSI 283 19 It is recommended more distance than the minimum clearance be maintained above the unit whether or not the construction is combustible to reduce and or eliminate hot spots and possible staining of painted ceiling surfaces If the unit must be close to the roof or ceiling interpose a non combustible baffle twice the size of the reflector between the unit and the roof or ceiling Allow atleast 2 5cm between the roof or ceiling and the non combustible baffle Allow at least 12 31cm between the non combustible baffle and the top of the heater 7 MOUNTING CONSIDERATIONS e These heaters shall be installed with clearances from combustible material as specified in the Clearance to Combusti
42. s Supply Piping Diagram for additional information about the above notes LEGEND Symbol Item Description A Main gas supply pipe line B 2 18mm drop gas pipe line C Drip leg 6 15cm long D Gas cock by others E First stage regulator required when gas pressure exceeds 14 35cm water column WC by others F Gas cock component of flexible gas connector assembly with plugged pressure tap G Flexible gas connector if permitted H Heater gas valve with manifold pressure tap J Heater gas manifold Page 8 10 ELECTRICAL SUPPLY 1 OF 2 A WARNING A If an external electrical source is utilized the heater when installed must be electrically grounded in accordance with the National Electric Code ANSI NFPA 70 latest edition or the Canadian Electrical Code CSA C22 1 latest edition Electrical supply lines shall NOT be used to support the heater Do not run electrical wiring above the heater or in direct view of radiant heat GENERAL REQUIREMENTS FOR 120 VAC AND 24 VAC DIRECT SPARK IGNITION DSI MODELS The electrical supply wiring to the heaters using 120 VAC or 24 VAC must be installed in accordance with local codes or the National Electric Code ANSI NFPA 70 latest edition IMPORTANT The electrical power supply MUST be properly grounded and properly polarized The heater controls are extremely polarity sensitive and th
43. t Hangars NFPA 409 latest edition and are so marked In aircraft storage and servicing areas heaters shall be installed at least 3 m 10 ft above the upper surface of wings or of the engine enclosures of the highest aircraft that might be housed in the hangar The measurement shall be made from the wing or engine enclosure whichever is higher from the floor to the bottom of the heater In shops offices and other sections of the aircraft hangars communicating with the aircraft storage or servicing areas the bottom of the heaters shall be installed not less than 2 4 m 8 ft above the floor In all hangars suspended or elevated heaters shall be located in spaces where they shall not be subject to injury by aircraft cranes movable scaffolding or other objects Provisions shall be made to ensure accessibility to suspended heaters for recurrent maintenance purposes REPAIR GARAGES e These overhead heaters are suitable for use in repair garages when installed in accordance with the Standard for Motor Fuel Dispensing Facilities and Repair Garages NFPA 30A latest edition formerly Standard for Repair Garages NFPA 88B and are so marked Heat producing appliances using gas or oil fuel listed for use in garages shall be permitted to be installed in lubrication rooms service rooms or fuel dispensing areas where Class liquids are dispensed or transferred provided the equipment is installed at least 2 4m 8 ft above the floor PARKING STRUCTURE
44. until the required clearance has been re established A WARNING A An overhead heater should be installed so that the minimum clearances marked on the heater will be maintained from vehicles parked below the heater CAN CSA 2 35 section 1 25 3 d 3 UNPACKING This heater is completely assembled 100 factory tested inspected prior to shipment and ready for installation Review the transportation company s bill of lading and or freight bill Observe and confirm the number of packages received agrees with the quantity indicated on the documents If there is any disagreement or any part of the shipmen is visibly damaged note the nature and extent of it on the documents If damage is discovered after delivery leave the damaged material in the original shipping container s and immediately call the transportation company and request for an inspection to be made 4 RESTRICTIONS Use for process heating applications VOIDS the warranty and CSA design certification These heaters are RESTRICTED from use for the following applications which will also VOID the warranty and CSA design certification WARRANTY VOID IF UNIT IS e Used in atmospheres containing flammable vapors or atmospheres containing chlorinated or halogenated hydrocarbons or atmospheres containing explosive dusts Installed without proper clearance to combustible materials or in a location where the heater controls can be subjected to ambient temperatures above 150 F 66 C
45. ustibles See Table 1 Clearance to Combustibles Requirements ACCESSORIES OPERATING CONTROLS Thermostats for automatic heater operation 2 stage programmable night setback line voltage low voltage and weather resistant thermostats available FLEX CONNECTORS Standard stainless steel or weather resistant connectors for gas supply CHAIN SETS Factory approved pre cut chain pre assembled with S hooks or uncut chain with S hooks HEAT DEFLECTORS Heat deflectors are available for heater models 30 100 MBTUH 9 29kW to permit reduced clearance to combustibles above the heater See Table 1 Clearance to Combustibles Requirements WIRE GRIDS Wire grids improve heater radiant efficiency and improve heater performance in drafty areas PARABOLIC REFLECTORS Parabolic reflectors increase the intensity of the infrared pattern below the heater while decreasing the scope of heating coverage Parabolic reflectors increase clearance to combustibles below the heater See Table 1 Clearance to Combustibles Requirements PROTECTIVE SCREENS Screens protect the ceramic tile from damage caused by the impact of foreign objects Available for all models with standard or parabolic reflectors 16 REPLACEMENT PARTS The following is a list of replacement parts that may be required during the life of the heater If it is necessary to replace those parts or other parts please contact the manufacturer at the address noted on the back cover of this manual Provide the se
46. ut off These controls are extremely polarity sensitive Proper grounding and proper electrical polarity are essential to the operation of these heaters SEQUENCE OF OPERATION FOR ALL 120 VAC AND 24 VAC DIRECT SPARK IGNITION DSI MODELS Thermostat calls for heat 2 stage models low heat or high heat operation is determined by setpoints of the thermostat Refer to thermostat manufacturers instructions Power is applied to the Ignition Detection Control IDC 15 seconds after power is applied a spark is developed at the electrodes and the Combination Gas Valve CGV opens for a 15 second trial for ignition period Burner ignites a small DC electrical current begins flowing from sensing electrode through flame to ground IDC senses current turns OFF spark gas continues to flow through the CGV Sparking may continue for the full 15 seconds before stopping Should the burner fail to light or flame is not detected during the first trial for ignition period the CGV is de energized and the IDC starts the 15 second inter purge sequence before another ignition trial After 15 seconds the IDC begins two 2 more ignition trials If the burner fails to light after the third trial the IDC will de energize the CGV and go into lockout mode On flame outage at the sensing electrode the IDC responds and begins sparking within 0 8 seconds A 15 second trial for ignition period begins to re light the burner If flame is re established normal operation
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