Modine Manufacturing MT112 Installation And Service Manual Download Page 1

WARNING

Improper installation, adjustment, alteration,
service or maintenance can cause property
damage, injury or death, and could cause
exposure to substances which have been
determined by various state agencies to cause
cancer, birth defects or other reproductive harm.
Read the installation, operating and
maintenance instructions thoroughly before
installing or servicing this equipment.

November, 2003

INSTALLATION AND SERVICE MANUAL

high intensity gas-fired infrared heaters 

model MT

IMPORTANT

The use of this manual is specifically intended
for a qualified installation and service agency.
A qualified installation and service agency
must perform all installation and service of
these units.

THIS MANUAL IS THE PROPERTY OF THE OWNER. 

PLEASE BE SURE TO LEAVE IT WITH THE OWNER WHEN YOU LEAVE THE JOB. 

Inspection on Arrival

1.

Inspect unit upon arrival. In case of damage, report it

immediately to the transportation company and your local

sales representative.

2.

Check rating plate on unit to verify that the power supply

meets available electric power at the point of installation.

3.

Inspect unit upon arrival for conformance with description of

product ordered (including specifications where applicable).

9-500.3

h

5H75283A

LL

CAUTION

As with all infrared equipment, clearances to
combustible material are critical.
To prevent premature heat exchanger failure do
not locate ANY gas-fired units in areas where
chlorinated, halogenated, or acid vapors are
present in the atmosphere

FOR YOUR SAFETY

If you smell gas:

1. Open windows.
2. Don’t touch electrical switches.
3. Extinguish any open flame.
4. Immediately call your gas supplier.

FOR YOUR SAFETY

The use and storage of gasoline or other
flammable vapors and liquids in open containers
in the vicinity of this appliance is hazardous.

Summary of Contents for MT112

Page 1: ... LEAVE THE JOB Inspection on Arrival 1 Inspect unit upon arrival In case of damage report it immediately to the transportation company and your local sales representative 2 Check rating plate on unit to verify that the power supply meets available electric power at the point of installation 3 Inspect unit upon arrival for conformance with description of product ordered including specifications whe...

Page 2: ...s are contained in the current edition of ANSI NFPA 409 or in accordance with the enforcing authority for Canada Public Garages Approval requirements are contained in the current edition of NFPA 88B CAN CGA B149 for Canada Parking Structures Approval requirements are contained in the current edition of NFPA 88A General All installations must be in accordance with the current edition of ANSI Z 223 ...

Page 3: ... 120 132 54 48 45 120 MT160 60 54 51 136 Model No 3 Be sure that the minimum clearances to combustible materials and for serving are maintained The minimum clearances to combustibles are shown in Table 3 2 4 Mounting height measured from the bottom of unit at which heaters are installed is critical Please refer to mounting height information in Table 4 1 5 Do not locate units in areas where chlori...

Page 4: ... TO SUPPORT WEIGHT OF THE HEATER Horizontal Plane 10 Minimum 35 Maximum Mounting Height Minimum Clearance to Combustible Materials Stacking Height Figure 4 1 Combustible Material Clearances 10 MIN 35 MAX REAR BELOW THE GAS MANIFOLD AND CONTROLS MUST BE LOCATED AT THE LOW END OF THE HEATER TOP NOTE Gas manifold MUST be located on the low side of the heater Combustion Ventilation Air Requirements Ma...

Page 5: ...e heaters to the gas supply and to avoid placing stress on the gas supply line 6 When pressure leak testing pressures above 14 W C 1 2 psi close the field installed shut off valve disconnect the appliance and its combination gas control from the gas supply line and plug the supply line before testing When testing pressures 14 W C 1 2 psi or below close the manual shut off valve on the appliance be...

Page 6: ...ke of fresh air and exhaust of products of combustion 4 Perform a visual inspection of the unit to make sure no damage has occurred during installation 5 Recheck the gas supply pressure The inlet pressure to the unit must be 7 14 W C for natural gas and 11 14 W C for propane gas The gas supply pressure must never exceed 14 W C If the pressure exceeds 14 W C a gas pressure regulator must be added u...

Page 7: ...ng the manifold pressure is done at the test port on the main gas valve on the unit See Figure 7 2 To adjust the manifold pressure 1 The correct manifold pressure is 6 W C for natural gas and 10 W C for propane gas Adjust the main gas pressure regulator spring to achieve the proper manifold pressure see Figure 7 2 2 Move the field installed manual shut off valve to the OFF position 3 Remove the 1 ...

Page 8: ...lame sensor proves ignition and stops the spark igniter from sparking At the same time the main gas valve is opened and the ceramic burner is lit The unit continues to operate until the thermostat is satisfied at which time the main gas and pilot gas valves are closed 100 and the unit shuts off Millivolt Self Energizing with Standing Pilot and 100 Safety Shutoff Gas Controls Control Codes 26 and 6...

Page 9: ...eater and close the gas supply valve installed adjacent to the heater With an air hose regulated to 15 psig maximum blow off any dust and dirt that has accumulated on the heater by blowing across the ceramic burner not directly at the ceramic burner Do not insert the air hose into the inlet of each venturi tube Burner Orifice Remove each burner orifice clean and reinstall on the heater manifold Dr...

Page 10: ...ostat wiring 5 Verify wiring compared to diagram 6 Manual valve closed on combination gas valve 6 Turn knob to ON position on combination gas valve Direct spark fails to ignite 1 Electrode improperly located 1 Relocate to correct position main burner s 2 Electrode ceramic cracked 2 Replace electrode 3 Electrode wire is loose broken or frayed 3 Reconnect loose wire or replace broken or frayed wire ...

Page 11: ...l unit s or other heat source must be added Gas odor 1 Loose pipe connection 1 Check all connections with a soap solution and tighten as necessary Control assembly 1 Heater not mounted correctly 1 Angle to be 10 to 35 from horizontal overheating 2 Heater mounted too close to ceiling 2 Check to maintain proper top clearance Trouble Possible Cause Possible Remedy For Servicing If a qualified service...

Page 12: ...IVE OF ALL OTHER REMEDIES PROVIDED BY LAW IS LIMITED TO REPAIR OR REPLACEMENT AT THE FACTORY OF SELLER ANY HEAT EXCHANGER CONDENSER OR BURNER WHICH SHALL WITHIN 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 BE RETURNED TO...

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