7. Carefully pull motor and fan out of shell. IMPORTANT: Be careful not to damage fan. Do not set motor and fan down with the weight resting on fan. This could damage fan pitch. 8. Turn motor and fan around. Place motor and fan into shell backwards. Note: Motor will go into shell first (see Figure 8). 9. Line up rear mounting holes in shell with first hole on each side of motor mount (see Figure 8). Note: When holes are lined up, fan should be outside of shell. 10. Holding mounting screws, caref

Rating: 0° F (-17.8° C) 55,000 Btu/Hr Models • 30 - 55,000 Btu/Hr (8.8 - 16.1 kW) • Fuel Consumption: 1.4 - 2.6 pounds/hr (0.70 - 1.28 kg/hr) • Primary Flame Control: Thermocouple operated gas valve • Heated Air Output: 300 CFM (8.49 m3/min) 85,000 Btu/Hr Models • 50 - 85,000 Btu/Hr (14.6 - 25.0 kW) • Fuel Consumption: 2.3 - 3.9 pounds/hr (1.04 - 1.77 kg/hr) • Primary Flame Control: Thermocouple operated gas valve • Heated Air Output: 350 CFM (9.91 m3/min) 125,000 Btu/Hr Models • 75 - 125,000 Bt

Improper use of heater can cause serious injury. Keep this manual for future reference. TABLE OF CONTENTS Safety Information ............................................... 2 Preventative Maintenance................................... 5 Unpacking .......................................................... 3 Troubleshooting................................................... 5 Product identification ........................................... 3 Diagrams .............................................

. OPERATING INSTRUCTIONS START 1. Fill tank - Use only kerosene, #1 & #2 diesel and fuel oil, JET A or JP-8 fuels. 2. Plug power cord into 120V/60Hz outlet. Power indicator light should be on. 3. If equipped, adjust thermostat knob to the warmest setting. 4. Push ON/OFF switch to ON () . Fan motor should start immediately. Heater will ignite within 10 seconds. 5. If equipped, adjust thermostat to desired setting. STOP Push ON/OFF switch to OFF (O). Fan motor will continue to run. Do not unplug h

26. Turn off propane supply to heater and unplug heater when not in use. 27. Use only original replacement parts. This heater must use design-specific parts. Do not substitute or use generic parts. Improper replacement parts could cause serious or fatal injuries. Hot Air Outlet (Front) Variable Heat Output Control Knob Power Cord Hose/Regulator Assembly Inlet Connector Handle Fan Guard Fuel Valve Button Figure 1 - Variable 75-125,000 Btu/Hr (Heater may vary from illustration) UNPACKING 1. Remove

. If fuel level is too low, contact local propane/LP gas company. If heater still does not restart, contact your local service center. STORAGE CAUTION: Disconnect heater from propane/LP supply tank(s). 1. Store propane/LP tank(s) in safe manner. See chapter 5 of Standard for Storage and Handling of Liquefied Petroleum Gases, ANSI/NFPA 58 and the Propane Installation Code CAN/CGA B149.2. Follow all local codes. 2. Place plastic cover caps over brass fittings on inlet connector and hose/regulator

clean, soft cloth. Not required, permanently lubricated. 10 TROUBLESHOOTING WARNING Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur. Only a qualified service person should service and repair heater. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Motor does not start when heater is plugged in and thermostat setting is higher than surrounding air temperature. 1. No power or low voltage at heater due to: A) Damaged power cord or extension cord B)

10. Discard old motor. 11. Attach motor to motor mount with two nuts. Tighten nuts firmly. 12. Replace fan on motor shaft. Make sure set screw contacts flat surface on motor shaft. 13. Tighten set screw firmly (40-50 inch-pounds). 14. Carefully route motor wires through hole in shell (see Figure 7). Place motor, motor mount, and fan guard into rear of heater shell. 15. Insert screws through heater shell and into motor mount. Tighten screws firmly. 16. Turn heater on its side to access opening in

Tighten setscrew firmly 4.5 to 5.6 N-m (40 to 50 in-lbs). 8. Replace fan guard and upper shell. Figure 28 - Removing Cover Side Cover Ignition Control Assembly Printed Circuit Board Supports (5) Figure 29 - Removing Circuit Board 108954 14 SERVICE PROCEDURES WIRING DIAGRAM SERVICE PROCEDURES Continued Installing the New Assembly ik CAUTION: Ignition control assembly contains electrostatic components. Handle the assembly by the edges of the printed circuit board. Do not touch any of

When ordering parts, be sure to provide the correct model and serial numbers (from the model plate), then the part number and description of the desired part. KEY NO. PART NUMBER DESCRIPTION QTY. KEY NO. PART NUMBER DESCRIPTION QTY. 1 098511-257 Upper Shell 1 15 NTC-4C Hex Lock Nut, 1/4-20 2 2 102432-01 Screw/Lockwasher, 1/2" 8 16 M51114-01 Fan Guard 1 3 098512-65 Combustion Chamber 1 17 M27417 Drain Plug (Includes “o” Ring) 1 4 103971-01 Photocell Bracket 1 18 099213-01 Button Plug 1 5 M1