Snugger SF2300 Installation Instructions Manual
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Snugger SF2300 Installation Instructions Manual

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SNUGGER
Technical description
Installation instructions
Operating instructions
Maintenance instructions
SNUGGER AIR HEATER
AIR SNUGGER USA
1 877 500-2212
Page
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Summary of Contents for Snugger SF2300

  • Page 1 SNUGGER Technical description Installation instructions Operating instructions Maintenance instructions SNUGGER AIR HEATER AIR SNUGGER USA 1 877 500-2212 Page...

  • Page 2: Table Of Contents

    1. INTRODUCTION ◆ The SF2300 and SF4200 air heaters are designed to be used as auxiliary heaters for trucks, RVs, boats, construction and farm equipment. The heaters will provide heat and keep a comfortable air temperature for the operator (driver) cab, small RV, passenger vans, mini buses, boats, etc for a fraction of the cost in comparison to engine idling.

  • Page 3: Main Parts

    2. Main parts of SF2300 and SF4200 Air Heater 2.1 Operation ◆ The fuel pump delivers fuel to the heater injector. The injector evaporates the fuel and delivers the vapors into the combustion chamber where it is mixed with combustion air. The igniter ignites the fuel-air mixture.
  • Page 4 3. Installation 3.1 Heater Installation ◆ Select the location to place the heater, most of the time the heater is installed on the floor or side wall under the bed in the truck storage compartment or under the seat in passenger vans in order for the heater exhaust fumes to be exhausted directly to the outside of the cabin or passengers space, and the warm air can be easy distributed throughout the cabin.
  • Page 5 ◆ The heater shall NOT be used in: poor ventilated rooms, garages, shops, multi-story car park, etc. Use heater only in open, well ventilated areas. ◆ Use of aftermarket parts is strictly prohibited unless authorized by the manufacturer. ◆ Installation and operation of the heater shall comply with statutory regulations, safety instructions and specifications as stated in the installation and operating instructions.
  • Page 6 5. Technical data and specifications Model SF2300 SF4200 Super High Medium Super High Medium Heating value（±10%） 7850 6485 4437 3072 14334 10921 7508 3754 Btu/hr(kW) (2.3) (1.9) (1.3) (0.9) (4.2) (3.2) (2.2) (1.1) Fuel consumption 0.07 0.06 0.04 0.02 0.13 0.06...
  • Page 7 6. Heater Location and Position The best place to install the water heater is in the engine compartment; the heater must be installed below minimum engine coolant level in order to allow the air to escape and fill up the heater with water or coolant when the bleed screw is open.
  • Page 8 Mounting heater on the floor or wall using mounting plate Fastening the heater on the vehicle floor or wall If the mounting surface is not smooth and even use the mounting plate. 3. gasket 4. mounting plate 5. vehicle wall 6.

  • Page 9: Safety

    Mounting heater on the floor or wall without mounting plate. Cut holes in floor or wall when installing the heater without the mounting plate on smooth and even floor or wall. Installation heater air system (Example) Item Description Item Description ⑤...

  • Page 10: Combustion Air System

    and also protect the heater from possible damage from cargo or contact with flammable materials. Install hot air duct in the way so it is protected from possible touching by humans and or heat sensitive materials. Install cold air return in the way so it will not suck the air from dirty or contaminated environment.

  • Page 11: Fuel Supply

    9.1 Safety Instruction Warning!!!! ◆ The entire exhaust system gets very hot during operation and immediately after the heater has been working. Keep the exhaust system parts away from any flammable materials; wires, hoses, fuel lines, carpets, plastics, brake lines, etc. ◆...
  • Page 12 Item Description Item Description ① ② ⑤ ⑥ ⑦ ⑩ Fuel intake pipe Fuel hose ③ ⑧ ⑨ Fuel pump Fuel line connecting hose ④ Fuel filter 10.2 Safety Instructions for fuel lines and fuel tanks in passenger compartment. ◆ In a passenger bus，fuel lines and fuel tanks shall NOT be routed through the passenger compartment or operator or driver’s cab.
  • Page 13 10.3.2 Max. suction and pressure height Max. height from fuel tank to heater – a= 12’(3000mm) Max. suction height from bottom of tank - b= 3.9’(2000mm) 10.4 mounting of fuel intake system ◆ First, drill 2 - 1/4” (6mm) at 1 1/16” (26mm) O.C. holes in appropriate location in top of fuel tank，as shown: ◆...

  • Page 14: Description Of Functions

    Please note! When drilling into the fuel tank, take precautions to prevent possible sparks from electric tools (ground all tools). Prevent shavings and any other debris to fall into the fuel tank. 11. Operating Instructions！ ◆ Before starting the heater, perform a safety check: all components must be firmly fastened, check for fuel leaks.

  • Page 15: Electrical System

    and ON too many times in short period of time, the controller will lock, wait for about 15 min. and turn the heater ON again. ◆ If the lower or upper voltage limit is reached, the heater will turn OFF. ◆...
  • Page 16 Electrical Electrical diagram bleck glow pin bleck brown ℃ blower orange yellow GND （-） Outlet air sensor Θ HEAT Inlet air sensor Θ bleck Θ burner sensor amethyst Annex list Wire color Function Wire color Function DC 12V/24V (＋) Brown line of communication A GND (－) Black...

  • Page 17: Troubleshooting, Malfunctions And Maintenance

    Troubleshooting, Malfunctions and Maintenance 15.1 Malfunction checklist Heater does not start after being turned on; switch the heater OFF and ON again. If the heater still does not start, check the following: - is there fuel in the tank? - are fuses ok? - are electrical cables, all connections, etc OK? - is anything clogging the combustion air supply or exhaust system? - does the control panel flash the fault code?
  • Page 18 Outlet warm temperature Check the return inlet air and warm outlet air for 12 times blockage. overheating protection Flame extinguished burner Disconnection power and re-connection again. 13 times overheating forbids the system operation Check all wire connection. 14 times Communication fault To reset the system：...
  • Page 19 Figure 5.1 Page...
  • Page 20 Item Parts No. Description SF2-000205 Air outlet SF2-000310 Temperature sensor SF2-000108 Clamp spring SF2-000202 Top cover 1 SF2-000203 Rubber grommet SF2-000106 Seal washer SF2-000110 Burner assembly SF2-000105 Grommet SF2-03 Glow pin SF2-000107 Cap ,glow pin SF2-000115 Burner filter screen 1 GB/T2672-1986 Pan head screws M5X10 GB/T818-1985...
  • Page 21 SF2-000209 Plug SF2-000207 Rubber buffer SF2-000201 Bottom cover SF2-000101 Heat exchanger Page...

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