Hunter UH68ODH - Manuals - manualsarea.com

Page 3 - Do not operate heater if fuel leak is detected.; DEATH OR SERIOUS INJURY; BE AWARE the field protection mask used for nuclear-biological-

WARNING! FUEL WARNING Gasoline and JP-4 should NOT be used with the UH68OKD/ODH under any circumstance. Only JP-8 or an approved alternate fuel as detailed in Chapter 1. Failure to observe fuel requirements could cause damage to the heater assembly and injury or death to personnel within or around t...

Page 5 - Chapter 1; Introduction

UH68ODK Tent Heater Chapter 1 Introduction Scope Type of manual: Operators Model and Name: UH68ODK and UH68ODH, Forced air tent heater, with ducts. Purpose of Equipment: Circulates heated air in the Alaska, TEMPER tent, and other soft walled structures. Maintains temperature via room thermostat in t...

Page 7 - Chapter 2; Operating Instructions; Main Switch

UH68 ODK/ODH Tent Heater Operators Instructions 2-1 Chapter 2 Operating Instructions Operator Controls and Indicators Table 2. Controls and Indicators Key Control or Indicator Function 1 Main Switch Starts and stops heater. FAN position turns fan only on for ventilation 2 Room Thermo Set for desired...

Page 9 - Function

UH68 ODK/ODH Tent Heater Operators Instructions 2-3 Table 5. Key Description Function 1 Inlet Adapter Attachment point for return air duct 2 Storage compartment Storage for stack, fuel lines, power cord etc. 3 Exhaust elbow Exhaust stack rests on top 4 Stack support Holds exhaust stack securely 5 Ex...

Page 15 - CAUTION; Never disconnect power to the heater while heat exchanger is

UH68 ODK/ODH Tent Heater Operators Instructions 2-9 Shutdown 1. Place main switch in off position. Vent fan will continue to run until heat exchanger has cooled down. The length of time will vary depending on ambient temperature. Operation Under Unusual Conditions Extreme Cold, Below 10 o F There is...

Page 20 - Chapter 3

UH68ODK Tent Heater Chapter 3 Maintenance Instructions Lubrication Instructions Doors, Pop Up Duct Adapter Lubricate all hinges with MIL-A-907 anti-seize compound. Preventative Maintenance Checks and Services (PMCS) Systematic, periodic PMCS are essential to ensure that the heater is ready for opera...

Page 22 - UH68ODK Tent Heater; Cleaning, burner head

UH68ODK Tent Heater Cleaning, burner head 1. Remove Carb mixer assembly 2. Remove Igniter 3. Clean carbon deposits in this area. Use a small wire brush. 5. Finish up with solvent wash commonly used in parts cleaning stations or carb cleaner. Let dry before assembly. 4. Clean these areas using compre...

Page 23 - Do not use a pick or any; IMPORTANT; If the mixer assembly cannot be cleaned satisfactorily,

UH68ODK Tent Heater Cleaning, Mixer 1. Remove mixer from carb assembly Caution: The mixer assembly is made of brass and can be scratched or dented very easily. Great care must be taken not damage the mixer nozzle. The performance of your heater depends on this delicate part. 2. Soak mixer in solvent...

Page 24 - Reassembly; The mixer assembly must be seated correctly to insure

UH68ODK Tent Heater Reassembly * IMPORTANT The mixer assembly must be seated correctly to insure that your heater has good combustion. Figure 1 shows the mixer assembly properly seated in the burner head. ( carburetor not shown for clarity) Figure 1 Figure 2 shows the mixer incorrectly seated. If le...

Page 25 - Exchanger

UH68ODK Tent Heater 1.10 Igniter – Check igniter for carbon build up and signs of wear. As the igniter wears the gap between 1. and 2. will become wider and oval shaped. Replace when signs of wear are evident. 1.11 Fuel Pump – the fuel pump has a filter screen located at the inlet end. To clean remo...

Page 27 - Chapter 4; Troubleshooting; Not used

UH68ODK Tent Heater 4-1 Chapter 4 Troubleshooting General This section contains information for locating and correcting most operating problems. This manual can not list all that may occur. When performing trouble shooting procedures, follow all warnings and safety procedures. At no time does this m...

Page 28 - Note on Blink Codes

UH68ODK Tent Heater 4-2 12 J6 CONN-H2 ZCC 1 2 3 6 5 4 U5 MOC3031 R10 180 M2 M1 G U8 12 J5 CONN-H2 12 J3 CONN-H2 12 J4 CONN-H2 R15 180 R1 20K R4 500K VENT FAN CARB HTR IGNITION COMB BLR VI 1 VO 3 GND 2 U1 L4805MOUSER # 511-L4805CV R16 5.0 C6 0.1uF C4 100uF D6 TVS-18V V+ 1 GP5/OSC1/CLK 2 GP4/OSC2/AN3 ...

Page 29 - Check Flame Switch –; the flame switch is a; Check Fuel Pump –; The fuel pump operates; Check Fuel Flow at Carburetor –; Disconect ignition; Check Overheat Thermostat –

UH68ODK Tent Heater 4-3 Troubleshooting Procedures 1.1 Fuel Supply – See PMCS 1.2 Check Flame Switch – the flame switch is a normally open heat sensitive switch. The UH68G has two switches. As used in the 68 outdoor kit, only the normally open switch is active. Normally switch 1, red and brown wires...