Introduction Thank you for purchasing our PHP-52W heater kit. The PHP-52W heater is designed to preheat your engine by using on-board diesel fuel and battery systems. Operation is simple and the heater provides a safe and reliable alternative to cold engine starting or need for electrical plug ins.
Heater Warnings Special Notes Note: Highlight areas requiring special attention or clarification. Caution Indicates that personal injury or damage to equipment may occur unless specific guidelines are followed. Warning Indicates that serious or fatal injury may result if specific guidelines are not followed. Warning - Asphyxiation Hazards Warning - Installation Hazards •...
Heater Kit List Description 5Kw Engine Heater Boxed Version Note: Contents of the kit will vary for Boxed Version. Kit list is based on Universal Kit Version. Description Part Number 5Kw Engine Heater P52W-T801 Description Part Number Operating Switch P65W-X305 2 Sided Mounting Tape Description Part Number...
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Heater Kit List Description Part Number Fuel Pickup Tube & Fuel Tube Hardware Kit U65D-X405 - Compression Fitting - Large Flat Washer - Small Flat Washer - Large Rubber Gasket - Large Hex Nut - Brass Hex Nut - Brass Securing Body Fuel Metering Pump P52W-T401 Fuel Pump Holder...
Main Components and Operating Concept *Figure O2 Main parts of PHP-52W Engine Heaters Here is a basic overview of the operation of the heater. • Fuel is delivered to the heater via the heater’s fuel pump. • Combustion air is delivered to the heater via the heaters 12v combustion air blower.
Keep fuel lines short to ensure good combustion. Suggested Locations: • Step box • External storage compartments (Not inside cab) • Inside frame rail • Inside engine compartment Note: PHP boxed version can be used to simplify your installation and protect your investment.
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Mount the heater using the mounting bracket provided with the installation kit. Provide shielding as required to protect the heater from environmental conditions. Orientate the heater within permissible mounting configurations shown in Figure M1. *Figure M1 *Figure M2 *Figure M3 Heater Mounting Bracket PHP Boxed Version...
Heater Plumbing Understand that connecting your heater to the engine makes it an integral part of the engine’s cooling system. It is impossible to describe all of the safety and operational considerations in these installation instructions. Therefore, the technician must exercise professional judgment to achieve a safe and quality installation.
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Heater Plumbing *Figure P2 Follow these guidelines and considerations: • There are a few plumbing accessories included with the kit (Connectors and molded hoses) • Use 3/4” hoses to optimize coolant flow. • Keep the pick up and return points as far apart as possible. •...
Fuel System The PHP-52W fuel pump and fuel system are the heart of the heater. The fuel pump not only delivers fuel to the heater but also controls the amount of fuel delivered. The pump is designed to operate like an electric solenoid and works using electric pulses.
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Fuel System *Figure F2 *Figure F3 Fuel Pump Mounting • Using the bracket and rubber mount provided, install fuel pump as shown. (Figure F2) • Isolating the pump with the rubber holder helps to minimize noise created during operation. • Ensure that the proper mounting angle is observed to avoid cavitation.
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Fuel System *Figure F5 *Figure F6 Fuel Pick-Up Pipe Installation (Drill Option) • Drill mounting holes in tank to accommodate pick-up pipe as shown in Figure F4 • Drill the two (1/4”) holes first. (Figure F5) • Drill a 7/8” hole. (Figure F6) •...
Electrical Connections Electrical System Installation Connect the heater harness as follows: • Route cables using either an existing cable passage or drill holes as required. • Seal the hole around the cables and make sure they are protected from chaffing and pinching. •...
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Electrical Connections A. Main Heater Harness Connects switch and power harness to the heater harness. Refer to Main Harness Connections Legend for details. B. Power Harness 2 Core, 5M (16’) Long – Red & Black • Route power harness section from heater to vehicle batteries. •...
Operating Switch *Figure E2 The PHP-52W is provided with a multifunctional controller. It is capable of manual and timer controlled switching of the heater and conveys heater operational parameters and diagnostics. Refer to the Operating Switch Instructions for operational details.
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PHP Water Heater Control Switch Operation Instructions Overview: The PHP Control Switch allows you to turn the heater on and off, regulate temperature, set operating mode, timed shutdown and timed startup functions. It also facilitates troubleshooting by providing diagnostic codes.
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Operating Switch PHP Water Heater Control Switch Operation Instructions On / Off Control: Press and hold 3 sec. to start heater Displayed for 3 seconds Displays max. then actual coolant temp. Press and hold 3 sec. to stop heater Displayed for 3 seconds Disappears NOTE: Heater will initiate a 3 minute cool down cycle.
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Operating Switch PHP Water Heater Control Switch Operation Instructions Adjusting Maximum Temperature: To adjust max temperature (Either Operating Mode) : While adjusting, the set point temperature Rotate Clockwise or Counterclockwise will flash. 35ºC In a snapping motion to the desired setting.
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Operating Switch PHP Water Heater Control Switch Operation Instructions Set Clock Time: Press and Hold for 3 seconds. Clock with Flashing Minutes Set the clock time. (two digits on right) When the double colon flashes you can set the clock time.
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Operating Switch PHP Water Heater Control Switch Operation Instructions Set Automatic Stop Time Once your Clock Time and Automatic Start Time have been set and you have pressed Clock with Flashing Minutes (two digits on right) You will be able to set the Automatic Stop Time.
Exhaust & Combustion Air Intake Connections The combustion air intake channels clean air into the heater. It can be eliminated if not required to ensure clean air intake. The exhaust tube channels exhaust safely away from the heater and vehicle. It also assists in providing a required amount of back pressure required to balance the combustion process.
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Exhaust & Combustion Air Intake Connections *Figure A1 Combustion Air Intake Exhaust Max. 1M (3’) Min. 0.2M (8”) Max. 2M (6’) Warning - Fire Hazard The exhaust is hot, keep a minimum of 5 cm (2”) clearance from any heat sensitive material. Warning - Asphyxiation Hazard Route exhaust beyond the skirt of the cab and outside of the frame area.
Heater Operation Pre-Start • Check all fuel, electrical and plumbing connections. • Refill the engine coolant. • Bleed air from the coolant system & top up coolant. Start Up Upon signal from the operating switch, the heater conducts a sequenced start procedure. •...
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Heater Operation Switch Off / Cool Down Upon switch off; • Heater commences a controlled cool down cycle. • Fuel delivering stops and flame is extinguished. • Combustion air blower and coolant pump continue to run for 3 minute cool down. •...
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Heater Operation Fault Code Chart Error Code Description of Error Diagnostic Instruction & Correct Action & Repair High Voltage Check supply voltage Low Voltage Check supply voltage Fuel Pump Check fuel pump wiring connections Open Circuit Check resistance across fuel pump terminal Fuel Pump Check fuel pump wiring connections Short Circuit...
Note: Batteries have significantly reduced capacity in cold weather Troubleshooting The PHP-52W is equipped with self diagnostic capabilities. In the event of failure, an error code will be displayed on the operating switch. Refer to the Fault Code Diagnostic Chart for direction. In addition, consider our basic troubleshooting steps.
Heater Components PHP-52W Replacement Parts Note: Refer to Kit List section for additional part listing. Item Description Part Number Heat Exchanger P52W-X101 Burner (Flame Tube) P52W-X102 Combustion Blower & Integrated ECU P52W-T101 Flame Sensor P52W-X103 Glow Pin P52W-T102 Temperature and Overheat Sensors...
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® Unit B -1465 Kebet Way Port Coquitlam, British Columbia, Canada V3C 6L3 help@dksi.com 877-508-3900 www.parkingheaterproducts.com PHP-06.18.20-TM52W-DR16...
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