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23

Operating Switch

Important Note: 
Once the Automatic Start Time or Automatic Stop Time are set, the operating switch will retain these 
settings and the timer function will remain activated. It will continue to operate as set on a repeating 
daily basis until both the Automatic Start Time and Automatic Stop Time are both set to “00:00”

PHP Gen II Air Heater Control Switch - Operation Instructions 

 

Set Automatic Start Time 

Once  your  Clock  Time  has  been  set  and  you  have 

pressed 

 

                 

 

You will be able to set the Automatic Start Time. 

 

When the

 upper colon flashes

 you can set the   

Start Time

.

 

 

Use the same method used above to set the clock time 

 

Press            to proceed to setting Automatic 

Stop Time.

 

 

 

Upper Dot

 in Colon ONLY appears 

Flashing 

 

 

 

 

Set Automatic Stop Time   

Once your Clock Time and Automatic Start Time have 

been set and you have pressed           

       

 

You will be able to set the Automatic Stop Time. 

 

When the

 Lower colon flashes

 you can set the Stop 

Time. 

 

Use the same method used above to set the clock 

time 

 

Press              to move back to Clock Setting.   
 
To exit, setting menu and return to home screen, simply 
wait 5 seconds. 
 

 

Lower Dot

 in Colon ONLY appears 

Flashing 

 

 

Important Note:   

Once the Automatic Start Time or Automatic Stop Time are set, the operating switch will 

retain these settings and the timer function will remain activated. It will continue to operate 

as set on a repeating daily basis until both the Automatic Start Time and Automatic Stop 

Time are both se

 

 

 

 

Summary of Contents for PHP-20A

Page 1: ...Technical Description Installation Instructions Operating Instructions Troubleshooting PHP 20A AIR HEATER...

Page 2: ...ater Kit List 6 Main Components and Operating Concept 8 Heater Mounting 9 Fuel System 13 Electrical Connections 16 Operating Switch 18 Exhaust Combustion Air Intake Connections 25 Heater Ducting 27 He...

Page 3: ...quipment RVs and boats by using on board diesel fuel and battery systems Operation is simple and the heater provides a safe and reliable alternative to engine idling or need for electrical plug ins Pl...

Page 4: ...ration Avoid touching exhaust pipe during operation Route exhaust pipe in a manner to shield it from anyone making contact with it This heater is not designed for use with straight bio diesel Blends o...

Page 5: ...0 25 0 07 0 21 0 05 0 16 0 04 0 10 0 03 Air Flow CFM 49 41 28 20 Power Consumption watts 34 23 13 9 Power Consumption at Start watts 100 Fuel Type Diesel Nominal Voltage 12 Volt Lower Voltage Limit 1...

Page 6: ...iption Operating Switch 2 Sided Mounting Tape Description Mounting Plate Mounting Plate Seal Description Wiring Harness 3 2M 10 5 Power Harness 30A Fuse 2 5M 8 Fuel Pump Harness 2M 6 Switch Harness De...

Page 7: ...ge Hex Nut Brass Hex Nut Brass Securing Body Fuel Metering Pump Fuel Pump Holder Black Rubber Fuel Line 0 5M 18 5mm ID Z Mounting Bracket Fuel Line 8m ID 1 5mm OD 5mm Small Fuel Line Clamps 9 11 mm QT...

Page 8: ...Heater Works The fuel pump delivers fuel to the combustion chamber The combustion air blower delivers air to the combustion chamber A glow pin is used to ignite the fuel air mixture The heat from the...

Page 9: ...where inside the cabin provided you adhere to the following conditions Combustion air intake exhaust and fuel inlet connections must be on outside of the vehicle Heater must be mounted on flat surface...

Page 10: ...ual components openings should be made For ease of installation fasten the mounting plate to the heater and make exhaust combustion air intake and fuel connections at the base of the heater before mou...

Page 11: ...11 Heater Mounting Figure M3 Combustion air Seal Exhaust Fuel Line Wiring Harness Heater Flange...

Page 12: ...12 Heater Mounting Figure M4 2 1 8 3 x 2 4 x 5 Rectangle...

Page 13: ...mponents provided System Layout Considerations Keep the length of the fuel system short as possible Mount the fuel pump as close to the fuel pickup as possible pump pushes better than it sucks Minimiz...

Page 14: ...g angle is observed to avoid cavitation Figure F3 Fuel Source Connect directly into the fuel tank using our dedicated fuel pickup tube Figure F4 Teeing into the existing vehicle fuel lines is not reco...

Page 15: ...as shown in Figure F4 Position fuel pick up 4 from bottom of tank for round tanks and 1 for flat tanks cut tube as necessary Fuel Line Connections Route fuel lines from the fuel pick up pipe to the h...

Page 16: ...s Connects switch and power harness to the heater harness Refer to Main Harness Connections Legend for details B Power Harness 2 Core 3 2M 10 5 Long Red White Black White Route power harness section f...

Page 17: ...inal Wire Color Function 1 White Switch 2 Blue Switch 3 Yellow Fuel Pump 4 Red White Main Power 5 Red Switch 6 Green Switch 7 Yellow Fuel Pump 8 Black White Main Power Open end view of main heater har...

Page 18: ...able to sense the temperature of the cabin area being heated Route the harness from the heater to the switch location Remove the 4 screws and backing plate and connect harness as shown in Figure F3 R...

Page 19: ...t operating mode and set timed shutdown and timed startup functions It also facilitates troubleshooting by providing diagnostic codes Operation Buttons and Display Icons Programming Keys 1 On Off Sele...

Page 20: ...argo and cabin heating applications This mode allows you to set the target cabin temperature from 8 C to 36 C As measured at the Control Switch Switching Operating Modes To switch heater between Gear...

Page 21: ...tting establishes infinite run time Time setting will be retained for all future start ups Count down time will be displayed Heater will continue to operate until the countdown reaches 0 Heater will t...

Page 22: ...d Set the desired start time Third Set the desired stop time Important Note Once the Automatic Start Time or Automatic Stop Time are set the operating switch will retain these settings and the timer f...

Page 23: ...the clock time Press to proceed to setting Automatic Stop Time Upper Dot in Colon ONLY appears Flashing Set Automatic Stop Time Once your Clock Time and Automatic Start Time have been set and you hav...

Page 24: ...ed air out of the system using the controller Press 5 Times to activate fuel pump Run fuel pump until fuel reaches the heater Press to Shut the Fuel Pump Off Running Blower Only Press and Hold 3 Secon...

Page 25: ...w point if proper incline cannot be maintained Route the exhaust pipe from the heater using p clamps provided Route away from the vehicle slip stream Combustion Air Intake Considerations The combustio...

Page 26: ...26 Exhaust Combustion Air Intake Connections 25mm Combustion Air Intake Min 0 4M 8 Max 1 0M 39 24mm Exhaust Min 0 4M 8 Max 2 0M 78 Figure A1...

Page 27: ...Install protective covers or shields as required Position hot air outlet so that it cannot be blocked or otherwise obstructed it should not point directly towards operator nor control switch Ensure pr...

Page 28: ...onds 4 Stabilization Phase To further establish combustion the glow pin remains on and the fuel air mixture is slowly increased The flame sensor monitors the increasing temperature at the heat exchang...

Page 29: ...hamber and cool down the heat exchanger The cool down cycle will last approximately 4 minutes Safety Systems The heater is equipped with several control features to protect itself and the operator Sys...

Page 30: ...d is continuously monitored If the fan motor does not start or if the speed deviates by more than 40 the heater will turn OFF after 60 seconds Emergency Shut Down In event of an emergency shut down th...

Page 31: ...tions and scratches or buildup on the heating element Wipe the glow pin clean with a soft cloth only do not use anything abrasive to clean the glow pin If the glow pin shows any signs of wear or damag...

Page 32: ...anual for further direction No Error Codes Detected If the heater does not attempt start and there is not an error code on the operating switch follow these procedures in order shown 1 Ensure that the...

Page 33: ...xhaust Source of Ignition The heater uses a glow pin as a source of ignition Normally when this fails it will create an open or short circuit and yield error code 5 or 6 However in some cases the glow...

Page 34: ...n as required 6 Glow Pin Short Circuit Check glow pin connectors and resistance across glow pin Should be 0 8 Replace glow pin as required 7 Blower Motor Open Circuit Check blower motor wiring blower...

Page 35: ...www parkingheaterproducts com help dksi com 877 508 3900 Unit B 1465 Kebet Way Port Coquitlam British Columbia Canada V3C 6L3 PHP 022021 TM20A REV2...

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