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WARNING

!

!

WARNING

!

!

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 

equipment.

Gas-Fired appliances are not designed for use in 

hazardous atmospheres containing flammable 

vapors or combustible dust, or atmospheres 

containing chlorinated or halogenated 

hydrocarbons.

The use and storage of gasoline or other flammable 

vapors and liquids in the vicinity of this appliance is 

hazardous.

•   

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.

If you smell gas:
  1. Open Windows.

  2. Do not touch electrical Switches.

  3. Extinguish any open flame.

  4. Immediately call your gas supplier.

  5. If gas supplier cannot be reached, call fire  

   

     department.

•   Enclosed swimming pool areas

•   Areas with contaminated atmospheres.

•   Areas requiring explosion-proof equipment.

•   Process heating applications.

FOR YOUR SAFETY

HAZARD INTENSITY LEVELS

CONTENTS

FOR YOUR SAFETY

ATTENTION

These heaters must NOT be used in the 

following applications:

Mount a copy of these instructions adjacent 

to the heater and retain a copy for future 

reference.

FOR INDOOR INSTALLATION ONLY.  

NOT FOR RESIDENTIAL USE.

9-512      

January 2017

INSTALLATION AND SERVICE MANUAL

High Intensity Gas Fired Infrared Unit Heaters

Model IHR, Control Codes 47, 48, 97, 98, 27, and 67

INSTRUCTIONS APPLY TO:

Installation     Operation     Maintenance

Section

Page

1. Safety ....................................................................3

2. Installation .............................................................9

3. Operation ............................................................ 19

4. Maintenance .......................................................20

5. Limited Warranty .................................................24

Summary of Contents for IHR 130

Page 1: ... could result in minor personal injury and or property damage If you smell gas 1 Open Windows 2 Do not touch electrical Switches 3 Extinguish any open flame 4 Immediately call your gas supplier 5 If gas supplier cannot be reached call fire department Enclosed swimming pool areas Areas with contaminated atmospheres Areas requiring explosion proof equipment Process heating applications FOR YOUR SAFE...

Page 2: ...lations 6 Safety Signs and Labels 8 2 0 Installation 9 Design 9 Heater Placement 10 Total Area Heating 10 Spot Heating 11 Heater Mounting 12 Ventilation 13 Gas Supply 14 Leak Testing 16 Electrical Requirements and Wiring Diagrams 17 3 0 Operation 19 4 0 Maintenance 20 Troubleshooting Guide 21 Heater Assembly Components 22 Parts Listing 23 5 0 Limited Warranty 24 ...

Page 3: ...esignedandcertifiedforuseinindustrialandcommercialbuildingssuchaswarehouses manufacturing plants aircraft hangars and vehicle maintenance shops For maximum safety the building must be evaluated for potential hazards before installing the heater system A critical safety factor to consider before installation is the clearance to combustibles Not For Residential Use Installation of an infrared heater...

Page 4: ...de but are not limited to Gas and electrical lines Combustible and explosive materials Chemical storage areas Areas of high chemical fume concentrations Provisions for accessibility to the heater Adequate clearances around air openings Combustion and ventilating air supply A critical safety factor to consider before installation is the clearances to combustibles Clearance to combustibles is define...

Page 5: ... 28 72 IHR 60 32 18 40 72 IHR 90 48 30 42 98 IHR 130 48 30 52 120 IHR 160 50 32 60 132 This clearance is 80 in when the heater is fitted with a parabolic reflector NOTE If the heater is mounted beneath a non combustible surface a 24 in minimum top clearance must be maintained from the top of the heater to prevent overheating the controls Figure 1 1 Clearance to Combustibles Mount Heater Level Side...

Page 6: ...delines Building Aspect An approved connector suitable for the environment of equipment usage is required Visible or excessive swaying flexing and vibration of the gas connections must be avoided to prevent failure Neither the gas pipe nor the connector shall be placed in the flue discharge area In no case shall the gas supply support the weight of the heater Gas Connection Building Aspect Codes a...

Page 7: ...o combustibles must be maintained from the upper most point of objects on the hoist Aircraft Hangars Installation of this infrared heater in aircraft hangars must be in accordance with the following codes United States Refer to Standard for Aircraft Hangars ANSI NFPA 409 latest edition In Canada Refer to Standard CAN CGA B149 1 and B149 2 Guidelines In aircraft storage and servicing areas heaters ...

Page 8: ...ns of the safety labels and their locations are pictured below 1 0 Safety Safety Signs and Labels Back View Bottom View F N LLDCL002 Clearance to Combustibles Label SAMPLE MODINE MANUFACTURING COMPANY 1500 DEKOVEN AVENUE RACINE WI 53403 UNVENTED GAS RADIANT HEATER FOR INDOOR Non Residential INSTALLATION ONLY High Intensity Infrared Heater Class IIIA Permanent Label www modinehvac com VOLTS AC AMPS...

Page 9: ...nting conditions space for exhaust gas supply and wiring Perimeter mounting of infrared heaters provides the most effective distribution of heat The recommended spacing between the heaters is shown in Chart 2 1 Add additional heaters in the center of the space when heaters are spaced farther than the recommended distance see Figure 2 1 When heated materials high in hydrocarbons solvents paint thin...

Page 10: ...d Distances for Total Area Heating Key Infrared heater Exhauster Thermostat Air intake louver A B Perimeter mounting Perimeter and center row mounting A B Factory recommended mounting heights are listed as a guideline If infrared heaters are mounted too low or too high they may result in discomfort or lack of heat Modine Manufacturing Company generally recommends observing the recommended mounting...

Page 11: ... Average 18 x 18 324 14 to 16 7 18 Protected Insul 20 x 20 400 16 to 18 8 20 IHR 90 90 000 BTU h Cold Drafty 20 x 20 400 16 to 18 9 20 Average 24 x 24 576 18 to 20 10 24 Protected Insul 28 x 28 784 20 to 22 11 26 IHR 130 130 000 BTU h Cold Drafty 26 x 26 676 18 to 20 11 26 Average 30 x 30 900 18 to 20 12 28 Protected Insul 35 x 35 1225 20 to 22 13 32 IHR 160 160 000 BTU h Cold Drafty 28 x 28 784 2...

Page 12: ... IHR30S FRONT VIEW Improper suspension of the infrared heater may result in collapse and being crushed Always suspend from a permanent part of the building structure that can support the total force and weight of the heater Failure to maintain minimum clearance to combustibles may result in fire and or explosion property damage serious injury or death Always maintain minimum clearances and post si...

Page 13: ...e preferred and typically mounted at high points on the roof where stagnant air accumulates inside the building For a flat roof considerations of prevailing winds high and low pressure areas and distribution of air movement must be taken into consideration when locating exhausters Best air distribution is accomplished by using a number of small exhausters versus one large exhauster Provide a minim...

Page 14: ...any Chart 2 3 Manifold Pressure Pressure Equivalents 1 inch W C equals 058 oz sq in equals 2 49 Mbar Note Check manifold pressure at the tap located either at the outlet of the gas valve or on the gas manifold pipe Readings will be above atmospheric pressure during operation The gas supply to the infrared heater must be connected and tested in accordance with national state provincial and local co...

Page 15: ...d tap that is accessible for a test gauge connection is also recommended 4 A sediment trap must be installed in the supply line in the lowest spot prior to connecting to the heater The trap length shall be at least three inches long Ideally the trap would be installed as close as possible to the shut off 5 When connecting piping to the unit the use of a thread joint compound is required The thread...

Page 16: ...field installed manual shut off valve disconnect the supply line to the unit and temporarily cap the supply line for testing purposes Figure 2 5 Gas Connection Drip Leg Sediment Trap NOTE Use a regulator when gas supply pressure exceeds 14 W C Do not exceed 14 W C to the appliance Ball Valve Inlet Tap Disconnect switch Stainless Steel Gas Connector formed into a smooth C Shape Field Supplied Not f...

Page 17: ...be used to supply power of sufficient VA rating for single or multiple connected installations Millivolt systems require NO external power as energy needed to operate the valve is developed by the power pile generator Do not use multiple connections as one thermostat may only control one heater For wiring of controls on the unit see the Figure 2 6 below It is recommended that the thermostat be ins...

Page 18: ... W BK W BL G G G COMMON N PFS 2 24VAC LLWDR002REV 1 24VAC SENSE GROUND NEUTRAL THERMOSTAT VALVE HIGH VOLTAGE IHR Series Manual 18 2 0 Installation Wiring Diagrams Figure 2 7 Millivolt 750 Schematic Millivolt Control Figure 2 8 24V Schematic Direct Spark Ignition VA Draw 12 Amps 48 Potted Circuit Board Figure 2 9 120V Schematic Direct Spark Ignition VA Draw 12 Amps 10 Potted Circuit Board ...

Page 19: ...nse of flame is lost the control immediately acts to reignite the gas air mixture If flame sense is not established within 15 seconds the heater will attempt two additional ignition sequences before proceeding to hard lockout The control can be reset by briefly interrupting the power source Millivolt Lighting Instructions 1 Purge main gas supply line 2 Slightly depress and rotate the heater s manu...

Page 20: ...access door 2 Use an air hose and gently blow the pilot burner free of dust or debris Gas Supply 1 Periodically inspect the gas supply for signs of corrosion or failure Replace if necessary WARNING Use protective glasses when cleaning the heater Disconnect power to heater before servicing Do not operate unit if repairs are necessary Do not operate unit showing any signs of burner malfunction Call ...

Page 21: ...d in drafty area Weak pilot flame Defective flame detector Relocate or shield from draft See Gas Supply section for propane Replace thermostat Clean or adjust pilot Replace Pilot on no gas to main burner B Weak pilot flame No electrical power to unit Pilot sensor element not located in pilot flame Defective main valve solenoid Defective pilot generator or thermocouple Excessive thermostat wire len...

Page 22: ...Pilot Assembly Side View Millivolt Ceramic Tile Pilot Burner Pilot Orifice Pilot Shield Powerpile Figure 4 2 Heater Assembly Components rear view of Direct Spark Side Frame Rayhead Assembly with Ceramics Heat Shield Brass Union Reflector Shield Rods Manifold End Frame Assembly Manifold Pressure Tap Cross over Bracket High Voltage Wire Low Voltage Wire Circuit Board Housed inside Junction Box Gas V...

Page 23: ...hield specify 1 5 78677 Low volt black wire grommet Direct Spark 78660 Flash shield specify 1 5 78678 High volt black wire heyco grommet Direct Spark 78661 Reflector End specify 1 5 78679 JB 0514 metal junction box Direct Spark 78662 Full Reflector Assembly specify 1 5 78680 8 x 1 2 common sheet metal screw 78663 Side frame 78681 1 4 20 x 1 2 machine screw IHR Bolt 78664 Side frame insert 78682 1 ...

Page 24: ...EVER OCCURS FIRST Burners Low Intensity Infrared Units Other Components excluding Heat Exchangers Coils Condensers Burners Sheet Metal TWO YEARS FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER WITHIN TWO YEARS FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION OR WITHIN THIRTY MONTHS FROM DATE OF SHIPMENT FROM SELLER WHICHEVER OCCURS FIRST Heat Exchangers Coils Indoor and Outdoor...

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