Modine Manufacturing MT28 Installation And Service Manual

[Page 1] Modine Manufacturing MT28

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 ot...

[Page 2] Modine Manufacturing MT28

DANGER Appliances must not be installed where they may be exposed to potentially explosive or flammable atmosphere. Special Precautions THE INSTALLATION AND MAINTENANCE INSTRUCTIONS IN THIS MANUAL MUST BE FOLLOWED TO PROVIDE SAFE, EFFICIENT AND TROUB...

[Page 3] Modine Manufacturing MT28

IMPORTANT Approval requirements for infrared heaters specify that the suspended type heaters shall be installed in accordance with certain sections of the National Fire Codes published by the National Fire Protection Association and various ANSI st...

[Page 4] Modine Manufacturing MT28

Figure 4.2 Typical Rigid Mounting Configuration Figure 4.3 Typical Chain Mounting Configuration Figure 4.4 Stacking Height Table 4.1 Typical Mounting Height for Full Building Heating INSTALLATION Typical Mounting Height at Min/Max Model No. Mount...

[Page 5] Modine Manufacturing MT28

1. Installation of piping must conform with local building codes, or in the absence of local codes, of the National Fuel Gas Code, ANSI Z223.1 (NFPA 54) - Latest Edition. In Canada, installation must be in accordance with CAN/CGA- B149.1 for natural ...

[Page 6] Modine Manufacturing MT28

Electrical Connections 1. Installation of wiring must conform with local building codes, or in the absence of local codes, of the National Electric Code ANSI/NFPA 70 - Latest Edition. Unit must be electrically grounded in conformance to this code. In...

[Page 7] Modine Manufacturing MT28

7 START-UP PROCEDURE Pilot Flame Adjustment (Intermittent Pilot and Millivolt Standing Pilot control systems – Control Codes 04, 08, 27, and 67 The pilot burner is orificed to burn properly with an inlet pressure of 7-14" W.C. on natural gas a...

[Page 8] Modine Manufacturing MT28

8 Control Systems Options The MT series infrared heaters are available with a choice of three different gas control options. The available controls and associated control codes are (see Table 8.1 for description of Control Codes): • Direct spark i...

[Page 9] Modine Manufacturing MT28

9 DIMENSIONS / MAINTENANCE Figure 9.1 Unit Drawing A 23.75 B 16.13 4X .312 Dia Mounting Holes 4.75 9.00 17.00 Table 9.1 Dimensions Dimensions Radiating Shipping (Inches) Area Weight A B (Sq. Inches) (Lbs.) MT28,30,33 17.12 7.63 93 30 MT56,60,66 2...

[Page 10] Modine Manufacturing MT28

No Gas 1. Main gas is off. 1. Open manual gas valve. 2. Power supply is off. 2. Turn on main power. 3. Air in gas line. 3. Purge gas line. 4. External regulator malfunctioning. 4. Replace external regulator. 5. External regulator reversed. 5. Remove ...

[Page 11] Modine Manufacturing MT28

11 Table 11.1 Troubleshooting Continued SERVICE & TROUBLESHOOTING / REPLACEMENT PARTS ORDERING Heater will not turn off 1. Defective thermostat. 1. Repair or replace thermostat. 2. Gas valve stuck open. 2. Replace gas valve. 3. Unit undersized. ...

[Page 12] Modine Manufacturing MT28

Seller warrants its products to be free from defects in material and workmanship, EXCLUSIVE, HOWEVER, of failures attributable to the use of materials substituted under emergency conditions for materials normally employed. This warranty covers replac...