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

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

If so, DESA Heating Products will repair or replace the heater without charge. REPAIR SERVICE Return your heater to your nearest authorized service center. Repairs not covered by the warranty will be billed at standard prices. Each Service Center is independently owned and operated. We reserve the right to amend these specifications at any time without notice. When writing, always include model number and serial number. For information, write: 82 Akron Road Toronto, Ontario M8W 1T2 2701 Industri

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, carefully reach through fan blades into rear of heater. Be careful not to damage fan pitch. Insert screw through motor mount and shell. With free hand, attach screw finger tight. Repeat process for other mounting hole. 11. Use 1/8" hex wrench to loosen se

5. Check all connections for leaks. 6. Close propane/LP supply valve. Installation Continued Inlet Connector Gas Valve Button Hose Figure 6 - Hose and Inlet Connector (Heater may vary from illustration) Operation WARNING: Review and understand the warnings in the Safety Information section, page 2. They are needed to safely operate this heater. Follow all local codes when using this heater. To Start Heater 1. Follow all installation, ventilation and safety information. 2. Locate heater on stable

Improper use of heater can cause serious injury. Keep this manual for future reference. General hazard warning: Failure to comply with the precautions and instructions provided with this heater, can result in death, serious bodily injury and property loss or damage from hazards of fire, explosion, burn, asphyxiation, carbon monoxide poisoning and/or electrical shock. Only persons who can understand and follow the instructions should use or service this heater. If you need assistance or heater in

You can also write to the address listed on the back page of this manual. Fuel Gas Connector: LPA4020 A POL adapter with excess flow check valve. Illustrated Parts Breakdown 55,000 BTU/HR ModelS TB100, TB104, TB106 AND TB110 4142364039383629353222161514131812201917101130Detail ADetail A2524232826312710987653433434232113737 Parts List 55,000 BTU/HR ModelS This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 1

When ordering parts, follow the instructions listed under Replacement Parts on page 11 of this manual. TB102 TB111 TB114 TB105 TB107 TB101 TB112 Key No. Part No. Description Qty. 1 118476-01 Handle • • • • • • • 1 2 118472-01 Control Box • • • • • • • 1 3 M11143-2 Strain Relief Bushing • • • • • • • 1 4 098219-42 Power Supply Cord Assembly • • • • • • • 1 5 100145-03 Fuel Tube • • • • • • • 1 6 118796-01 Female Compression Fitting • • • • • • • 1 7 114159-05 Ball Valve Assembly • • • 1 114159-03

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

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