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INDIRECT FIRED SPACE HEATERS
PROPANE AND NATURAL GAS
Installation - Operation Maintenance
Instructions and Parts List
READ INSTRUCTIONS PRIOR TO STARTING HEATERS
FROST FIGHTER INC.
125 FURNITURE PARK
WINNIPEG, MANITOBA
CANADA R2G 1B9
TEL: (204) 775-8252
FAX: (204) 783-6794
WWW.FROST-FIGHTER.COM
MODELS
IDF 350LP/NG
IDF 500LP/NG
1-888-792-0374
Rev. 1.3.0.
MAY 2024
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Related Manuals for Frost Fighter IDF 350LP
Summary of Contents for Frost Fighter IDF 350LP
- Page 1 INDIRECT FIRED SPACE HEATERS PROPANE AND NATURAL GAS MODELS IDF 350LP/NG IDF 500LP/NG Installation - Operation Maintenance Instructions and Parts List READ INSTRUCTIONS PRIOR TO STARTING HEATERS FROST FIGHTER INC. 125 FURNITURE PARK WINNIPEG, MANITOBA CANADA R2G 1B9 TEL: (204) 775-8252 FAX: (204) 783-6794 Rev.
- Page 2 IMPORTANT INSTRUCTIONS 1. READ ALL INSTRUCTIONS BEFORE INSTALLING OR USING THIS HEATER. 2. This heater is hot when in use. To avoid burns do not touch hot surfaces. Keep combustible materials such as furniture, papers, clothes, curtains, tarps, plastic sheets, combustible building materials & partitions, other equipment, etc. at least 10 feet (3 m) from the front of the heater and keep them away from the sides and rear.
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Page 3: Table Of Contents
TABLE OF CONTENTS IDF350LPNG/IDF500LPNG PAGE 1-3 SAFETY INFORMATION AND SAFETY INSTRUCTIONS PAGE 4 GENERAL NOTES, ELECTRICAL NOTES, INSTALLATION INSTRUCTIONS PAGE 5 MODELS AND SPECIFICATIONS PAGE 6 INSTALLATION CLEARANCES, IMPORTANT INSTALLATION INSTRUCTIONS PAGE 7 GAS REGULATOR SETUP PAGE 8 OPERATING INSTRUCTIONS PAGE 9 STANDARD GAS CONVERSION PROCEDURE PAGE 9-10... -
Page 4: Safety Information And Safety Instructions
SAFETY INFORMATION AND SAFETY INSTRUCTIONS STANDARD WARNING SYMBOLS INDICATES EXTREME HAZARD THAT COULD RESULT IN INJURY OR DEATH INDICATES POSSIBLE HAZARD THAT COULD DAMAGE EQUIPMENT OR PROPERTY AND/OR RESULT IN INJURY INDICATES POSSIBLE HAZARD THAT COULD CAUSE IMPROPER OPERATION OR DAMAGE EQUIPMENT OTHER SPECIFIC HAZARD SYMBOLS THESE SYMBOLS ARE USED THROUGHOUT THIS MANUAL TO INDICATE SPECIFIC HAZARDS... - Page 5 INSTALLATION / OPERATION / MAINTENANCE INSTRUCTIONS READ INSTRUCTIONS PRIOR TO OPERATING HEATER GENERAL HAZARD WARNING FAILURE TO COMPLY WITH 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.
- Page 6 OPERATORS RESPONSIBILITY Installation and adjustment of the burner requires technical knowledge and the use of combustion test instruments. Do not tamper with the unit or any safety controls. Call your qualified service technician. Incorrect operation of the burner could result in severe personal injury, death, or substantial property damage.
- Page 7 CAN/CSA 3.2. The intended use is for 5, the temporary heating of building or structures under construction, alteration or repair. Frost Fighter cannot anticipate every use, which may be made of our heaters. CHECK WITH YOUR LOCAL FIRE AND SAFETY AUTHORITY IF YOU HAVE QUESTIONS ABOUT SAFE APPLICATIONS.
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Page 8: Models And Specifications
MODELS AND SPECIFICATIONS IDF500LP/NG/ IDF350LP/NG MODEL HEATING CAPACITY 350,000 BTU 420,000 BTU FUEL NATURAL GAS/ PROPANE NATURAL GAS/ PROPANE CAPACITY 1 HP 3450 RPM or 1 HP 1750 RPM MOTOR ½ HP 1750RPM BURNER MOTOR 1/4 HP 3450 RPM 1/4 HP 3450 RPM MANIFOLD 2.0"... - Page 9 ALWAYS ENSURE TO LEAVE UNIT POWERED AFTER USE FOR COOLING FAN TO DISSIPATE HEAT...
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Page 10: Gas Regulator Setup
GAS REGULATOR SETUP REG 1: 1ST Stage Required if gas supply pressure is above 10 PSI & up to 250 PSI Max. To reduce pressure down to 5 - 10 PSI and supply 2nd stage regulator. P/N 50276A REG 2: 2nd Stage Required if gas supply pressure is equipment... -
Page 11: Operating Instructions
OPERATING INSTRUCTIONS TO START HEATER 1. Ensure unit is flat and level. 2. Check that the operating switch on the unit is in the "OFF" position before plugging supply cord to a 115 VAC outlet. 3. Ensure that gas supply is 14” (½lb) pressure maximum that is being fed to the RV53 Maxitrol regulator. -
Page 12: Standard Gas Conversion Procedure
STANDARD GAS CONVERSION PROCEDURE CHECK TYPE OF GAS BEING USED FOR OPERATION. SUITABLE GASESARE NATURAL GASAND PROPANE GAS. For OHV200 & IDF350 Propane Gas 1. For propane gas use, the conversion valve must be placed in the propane gas position as per the label on the unit. This is the closed position of the red handled ball valve on the manifold. - Page 13 IDF MAINTENANCE INSTRUCTIONS (CONT’D) AIR SWITCH The air switch should be tested regularly to ensure it will cut out if any blockage or disruption to burner airflow occurs. With the unit running, slide a 6” X 8” piece of cardboard upwards if front of screen on burner (under control panel) slowly.
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Page 14: Sequence Of Operation
SEQUENCE OF OPERATION Flip toggle switch to either manual or thermostat position. Red LED light on ignition controller will come on for 1 second. Burner fan motor will start, unit will pre-purge for 45 seconds. Spark ignitor energized for 4 seconds; gas solenoid valves will open during 4 second TFI (trial for ignition) The unit has three trials for ignition before lockout. - Page 15 BURNER IGNITES BUT THEN SHUTS DOWN Connect D.C. Micro amp multimeter probes to FC pins controller (besideLED light). You should receive a reading between 3.5-5.5 microamp (fluctuating 10%) during the time it fires. If reading is lower, check flame rod and wire as per trouble shooting instructions. Disconnect orange MVI wire from controller. Shut off gas and withAC voltage tester, check between 24v ground side of transformer and MVI terminal for voltage during TFI.
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Page 16: Gas Pipe Size And Btu Supply Chart
Gas Pipe Size and BTU Supply Chart Natural Gas PIPE SIZE (inches) Inlet Pressure: Less than 2 psi 1/2” 3/4” 1” 1 1/4” 1 1/2” 2” 2 1/2” 3” 4” Nominal Pressure Drop: 0.5 in w.c. Specific Gravity: 0.60 Actual ID 0.622 0.824 1.049... -
Page 17: Fan Motor Wiring Diagram
FAN MOTOR WIRING DIAGRAM BALDOR MOTORS From Unit From Unit Black Brown White Blue Yellow White Orange Black WEG MOTORS From Unit From Unit Black White Blue White Yellow Orange Black... -
Page 18: Natural/Propane Complete
NATURAL/PROPANE BURNER COMPLETE #200 ----- PART #20223 #350 ----- PART #50223A #500 ---- PART #50289 DAMPER BURNER HOUSING LEVELER (#50250) (#50253) ELECTRODE ASSEMBLY (#50268) BURNER ACCESS COVER BURNER (#50143) MOTOR AIR DAMPER 1/4HP(#48140A) (#50254) BLOWER (#50141) AIR TUBE COMBINATION (# 50255) ELECTRICAL PANEL COMPLETE (#50156) -
Page 19: Electrode Drawer Assembly
ELECTRODE DRAWER ASSEMBLY (350/500) SPARK ROD LEAD WIRE (#50268) (#50140) FLAME ROD & ELECTRODE BRASS FLAME ROD COUPLING LEAD WIRE (#50183) (#50140A) ELECTRODE SPARK ROD ELECTRODE ASSEMBLY (#50150) MOUNTING PLATE (#50142) PROPANE AND NATURAL NOZZLE (#48292) FLAME ROD (#50154) BLAST TUBE ASSEMBLY (#50257) MOUNTING FLANGE BLAST TUBE (INC. - Page 20 ELECTRICAL PANEL (COMPLETE #50156) IGNITION TRANSFORMER (#50138) FUSE-5 AMP (#50216) TERMINAL GAS PRIMARY CONTROL STRIP (#50139) (#50217) FUSE-2 AMP (#50215) **AIR PROVING SWITCH STEP DOWN (#48294) TRANSFORMER (#50158) AIR PROVING SWITCH IS LOCATED UNDER THE ELECTRICAL PANEL (#48294) (#48294E) TWO TYPES OF AIR PROVING SWITCHES MAY BE PRESENT...
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Page 21: Manifold Complete
MANIFOLD COMPLETE IDF350 #50157 SHUT OFF VALVE FIRING VALVE (#50270) (#50270) CONVERSION VALVE (#50271) RV53/RV52 SOLENOID VALVE REGULATOR (#50273) (#50274) NOTE: ALL UNITS WILL REQUIRE A “SECONDARY” POUNDS TO INCHES REGULATOR TO OPERATE ON PROPANE/NATURAL GAS... - Page 22 MANIFOLD COMPLETE IDF500 #50157A SOLENOID VALVE SOLENOID VALVE (#50273) (#50273) SHUT OFF VALVE (#50270) MAXITROL REGULATOR CONVERSION FIRING VALVE (#50274) VALVE (#50270) (#50271) NOTE: All units will require a “secondary” pounds to inches regulator to operate on propane/ natural gas...
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Page 23: Spark Rod And Flame Rod Settings
SPARK ROD AND FLAME ROD SETTINGS Adjust by loosening compression fitting nuts and sliding / rotating spark rod or flame rod into correct position and then tightening compression fitting nuts. It may be necessary to turn the entire compression fitting slightly where it threads into the mounting block in order to properly align the rods in the retention plate holes so they don't contact the metal edges at any point. -
Page 24: Limits, Fan Switches And Temperature Feelers
IDF350 LP/NG & IDF500 LP/NG LIMITS, FAN SWITCHES AND TEMPERATURE FEELERS ADJUSTABLE FAN SWITCH 90-130°F (48111B) MANUAL HIGH LIMIT (48109) HIGH LIMIT 250°F (48110C) FAN SWITCH FEELER (48171) Indoor and outdoor settings of fan switch Indoors & if surrounding air is warm i.e. -5°C/23°F-Fan switch should be set to 115° or higher so as to shut down unit when heat exchanger is properly cooled, also keeps fan motor from excessive running on when discharging cooler air. -
Page 25: High Limit/Fan Switch Wiring On Idf Lp/Ng Heaters
HIGH LIMIT/FAN SWITCH WIRING ON IDF LP/NG HEATERS 300’F MANUAL HIGH 250’F AUTOMATIC ADJUSTABLE FAN LIMIT SWITCH SWITCH RESET HIGH LIMIT 48109 48111B SWITCH 48110C... -
Page 26: Idf500/ Idf350 Lp/Ng Wiring Diagram
IDF500/ IDF350 LP/NG WIRING DIAGRAM * *IDF350 HAVE ONE LESS SOLENOID VALVE... -
Page 27: Heat Exchanger For Lp/Ng Units
HEAT EXCHANGER FOR LP/NG UNITS P/N 20200-OHV200LP/NG P/N 50200- IDF350 & 500LP/NG COMBUSTION CHAMBER ASSEMBLY FLUE COLLAR ASSEMBLY P/N 20207-OHV200 P/N 48113-ALL UNITS P/N 50207-IDF350 & 500 HEAT SHIELD P/N 50205 ONLY USED ON OHV MODELS OUTER SHELL P/N 20206-OHV200 P/N 50206-IDF350 &... - Page 28 IDF350 & IDF500 FROST-FIGHTERS FRONT / SMALL COVER PANELASSEMBLY CANOPYASSEMBLY 48119 - #350 / #500 WITH HANDLE 20119 - #200 AND RAINGUARD 50108 FLUE COLLAR ASSEMBLY FAN ENTRY PLATE 50113 48175 MOTOR MOUNT & SCREEN 48803 HIGH LIMIT& FAN SWITCH COVER 48112A BURNER HOUSING...
- Page 29 IDF 350 & IDF500 FROST-FIGHTERS FAN BLADE FAN MOTOR 50103 - #350/#200 48101 - #350/#200 *30203 or 50103 - #500 *48202 or 50202 - #500 50105 -#500HS 48202E-#500HS FRONT CAP ASSEMBLY 48205- 2 X 12" 48205A-1 X 16" FRONT COLLAR 48182 CRADLE ASSEMBLY...
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Page 30: Frostfighter Warranty
FROSTFIGHTER WARRANTY Frost Fighter Inc. warrants the Frostfighter heater to be free from defects in a workmanship and materials for a period of twelve (12) months from date of initial service not to exceed fifteen (15) months from date of shipment.
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