! " # $ ! " %%% & ' Propane Heater 20,000 BTU/HR Model PH20-30A With Automatic Gas Ignition Control Installation Operation Service
EXHAUST GASES Do not operate heater in an enclosed area unless the exhaust gases are piped outside. Exhaust gases may contain carbon monoxide, a colorless and poisonous gas. FUEL USE This heater is designed for use with propane (LP gas) only. Do not attempt to use gasoline as fuel since fire or explosions may result. Use this heater only with gas regulator part number 88301-T supplied with the heater.
Section One____________________________________________________________ 3 Introduction and Description __________________________________________________ 3 Description _______________________________________________________________________ 3 Section Two ___________________________________________________________ 4 INSTALLATION INSTRUCTIONS ____________________________________________ 4 Pre-Installation Inspection____________________________________________________________ 4 Location and Mount
This manual contains installation, operation, maintenance, and repair instructions for Model PH-20-30A Heaters manufactured by Hunter Manufacturing Company, Solon, Ohio. The Falconaire PH20-30A is a 12 VDC Microprocessor Based, Direct Spark Ignition, thermostatically controlled heater. The control utilizes a microprocessor to continually and safely, monitor, analyze and control the proper operation of the gas burner.
1. Inspect the heater for damage that may have occurred during shipment. Check against the packing list or invoice for lost parts. 2. Inspect the controls for loose or missing hardware. Read all warning tags supplied with the heater. Perform all duties indicated on the tags. 3. Inspect all lines, tubing, and fittings to see that they are secure and free of breaks, kinks, or other damage.
LOCATION AND MOUNTING (cont.) 1. Mount the heater horizontally, as shown in figure 4. Choose a mounting location that will enable mounting the heater on a level surface, with adequate room around the heater for removal and service. Check that the tilt switch is upright. Refer to figure 6 for mounting dimensions and clearances. 2. After selecting a location, remove all combustible material from area, within two inches of where the heater will be located.
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: This heater is designed for use with propane (LP gas) only. Do not attempt to use gasoline as fuel since fire or explosion may result. Use this heater only with gas regulator part number 88301-T and POL connector part number 88014 supplied with the heater. Operation with other regulators, or tampering with the regulator adjustment, voids all warranties, and may result in fire, explosion or damage to the heater. 1.
Ground the heater electrically through the ground screw provided on the heater case, and connect to a clean, secure chassis ground. Do not use the fuel line as a ground or electrical conductor. Use of the fuel line as an electrical or ground conductor can result in fire or explosion. Do not rely on heater mounting studs to provide electrical ground. 1. Refer to the wiring diagram in figure 7, locate the power and ground connections on your heater.
! " (figure 7) Symbol B1 ECM E1 L1 LED1 PS1 S1 S2 S3 S4 SW1 TB Description Blower Motor Electronic Control Module Igniter Solenoid Valve L.E.D. Assembly Pressure Switch Tilt Switch Overheat Thermostat Room Thermostat (optional) Comfort Control Thermo.
' 2 '/ , 5 * Comfort Control Assembly . 46+? 46+? +- ) -&) - %- & Controls and Indicators (figure 5) Table 2. Control and Indicator Functions Name Main Switch Temperature Control Knob Green LED Red LED Remote Room Thermostat (not pictured) Function Simple on/off switch. Move to ON for heater to run.
' + The Falconaire PH20-30A is a Microprocessor Based Direct Spark Ignition, thermostatically controlled heater. The control utilizes a microprocessor to continually and safely monitor, analyze and control the proper operation of the gas burner. Value added features such as combustion blower control, LED diagnostic output, automatic one hour reset, and multiple ignition tries highlight the controls benefits.
" Cab or Crew Area 1. Flip Main switch to ON 2. Rotate Comfort Control knob approximately 75% of full travel clock wise. 3. When temperature in the heated area is satisfactory rotate Comfort Control knob counter clock wise until a "click" is felt in the knob. Now the cabin temperature is set. The Comfort Control will maintain the current temperature. Some adjusting will be necessary until the "perfect" setting is reached. Cargo or Beverage 1. Flip Main switch to ON 2.
) ( # # The PH20-30A has built in diagnostic capabilities. When the microprocessor-based control detects a fault, it displays an error code by flashing the red LED. To clear an error code, turn off the main switch. (Except for low voltage) Table 3 Number of Flashes 1 * Error Codes Problem Combustion pressure fault. Pressure switch did not close during TFI 2 Flame is detected in the combustion chamber at a time it should not be.
' " The diagnostic features of the ECS will cover most problems that you may have with your heater. Table 5 Troubleshooting chart addresses some other problems that may arise TABLE 5. TROUBLESHOOTING CHART Trouble Heater fails to start motor does not run, green light is not on. Cause and/or Remedy 1. 2. 3. 4. Check fuse. Check all electrical connections including ground. Check motor. Replace if necessary. Is it turned on? Heater fails to start - 1.
! , * The following service procedures, if performed as indicated, will help ensure proper operation and extend the life of your heater.
* General This section lists and illustrates the major parts of your model PH20-30A Hunter heater. In general, attaching parts such as screws, nuts and lock washers have not been listed or illustrated since their application is obvious. If a part has not been assigned a part number, or the abbreviation COML appears, the part can be replaced with a commercially available equivalent. All available service kits are listed.
( & ' " 1 2 3 4 5 6 7 8 9 10 11 12 13 Index # 1 2 3 4 5 6 Part # 49131 49196 493151 49828 52712 4347 7 8 52618 49420 Description Crossbar Covers Top Cover Terminal Panel Over Heat Thermostat Case Assembly Heat Exchanger Index # 9 10 11 12 13 Part # 50734 4952201 49355 52745 52632 Description Deflector Brkt. Exch. Exhaust Conn. Panel Fuse Assembly Note: To get complete set order two 49196 covers.
, " , + % 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Index # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Part # 52610 52610-4 51964 52611 3629 52608 13819 4718201 49093 50386 52606 52604 50716 COML Description Electronic Control Module Ignition Cable Terminal Block Pressure Switch (not Shown) 45o Flare Fitting Mounting Bracket 1 /8 NPT Connector Igniter and Gasket Burner Head Gasket Solenoid Valve Fuel Line Burner Head Restrictor Assembly 10-24NC Cap Screw
) ! 1 % + 2 3 4 5 6 7 8 9 Index # 1 2 3 4 5 6 7 8 9 * 5158212 Assembly Part # Description 10599-07 Inlet Air Duct 50875 Cover 51567 Combustion Blower Wheel 50576 Combustion Blower Housing 49152 Combustion Air Hose 50783 Motor Mount 49226 Motor (12VDC) 49976 Prop Fan 49399 Mounting Plate Complete Blower and Motor
% % ( 1 2 Index # 1 2 * * * * * Part # 52944-6 52621 52623 52624 * Part of 52621 Comfort Control Description Remote Cable 6ft Comfort Control Assembly complete L.E.D.
& 1 2 2-1/2" Duct Opening 3 Index # 1 2 3 Part # 52944-10 52944-20 51643 47060 Description 10 Foot Long Remote Cable 20 Foot Long Remote Cable Thermostat, Calibrated Defroster Kit ( "y" not included)
% ' % Plug Thermostat In Here PH20-30A Heater (rear view) Calibrated Thermostat P/N51643 Plug the remote thermostat into the rear of the heater using the spade connectors supplied. Use 20ga wire.
& " "' The Ph20-30A comes with a additional power lead on the back of the Comfort Control to attach a remote or external diagnostic light. On some applications, it is necessary to monitor the heater operation from outside the vehicle. This circuit will handle 1 amp maximum. Attach one power lead (positive) to the connector on the Comfort Control.
