Proheat M50 G-II PCM Service Manual
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Proheat M50 G-II PCM Service Manual

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G-II PCM SERVICE MANUAL
M50, M80/90 & M105/125
SERIAL NUMBERS
G-II PCM MODEL HEATERS: 705000 – TO DATE
AND ALL MODELS EQUIPPED WITH A
G-II REPLACEMENT PCM
Rev. C

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  • Page 1 G-II PCM SERVICE MANUAL M50, M80/90 & M105/125 SERIAL NUMBERS G-II PCM MODEL HEATERS: 705000 – TO DATE AND ALL MODELS EQUIPPED WITH A G-II REPLACEMENT PCM Rev. C...

  • Page 2: Table Of Contents

    3.0 MAINTENANCE TOOLS ............. 3-1 4.0 TROUBLESHOOTING AND REPAIR ........... 4-1 4.1 SYSTEM AND COMPONENT DIAGNOSTICS........ 4-2 4.1.1 EXAMPLE PROHEAT BEHAVIOR ERROR – Code 1 ... 4-4 4.1.2 START Diagnostic Code 1..........4-5 4.1.3 FLAME OUT Diagnostic Code 2 ........4-23 4.1.4 COOLANT FLOW Diagnostic Code3 ......
  • Page 3 G-II PCM Fuse............4-36 4.3 OPERATIONAL PROBLEMS............. 4-36 5.0 MAINTENANCE ................5-1 5.1 WEEKLY MAINTENANCE ............5-1 5.2 ANNUAL MAINTENANCE ............5-2 5.3 ROTARY VANE COMPRESSOR SERVICE & VANES INSTALLATION ..5-7 6.0 PROHEAT WARRANTY .............. 6-1 PROHEAT M-SERIES G-II PCM SERVICE MANUAL...

  • Page 4: Safety

    CAUTION Hazards or unsafe practices that could result in minor injury or product or property damage. NOTICE Information that is important to proper installation or maintenance, but is not hazard-related. PROHEAT M-SERIES G-II PCM SERVICE MANUAL...

  • Page 5: Safety Considerations

    Electrical components in this product may contain lead, a chemical known to the State of California to cause cancer and birth defects and other reproductive harm. PROHEAT M-SERIES G-II PCM SERVICE MANUAL...

  • Page 6: Introduction

    PROHEAT heaters are used for the following applications: (1) Engine Block Heat – The PROHEAT will preheat an engine block to ensure reliable starting in cold weather. Its’ use throughout the year will reduce engine wear caused by cold starts.
  • Page 7 PROHEAT M-SERIES G-II PCM SERVICE MANUAL...

  • Page 8: Proheat Control Module (Pcm) Type

    PROHEAT CONTROL MODULE (PCM) TYPE The G-I Proheat Control Module (PCM) is no longer available has been replaced with the G-II PCM. The new G-II PCM incorporates a new dual mode analog/digital temperature sensor and advanced Data Link software. Both styles can be identified in the figures below.
  • Page 9 SENSOR ANALOG SENSOR HAS 2 PIN CONNECTOR Figure C-3. G-I PCM can be identified on a heater by not having the status indicator light. Also the Analog Temp Sensor has a 2 pin connector. PROHEAT M-SERIES G-II PCM SERVICE MANUAL...

  • Page 10: Compressor Type

    NOTICE diaphragm type. Both styles can be identified in the Figures below. Please refer to the M-Series Parts Book at www.proheat.com for part numbers. This manual For continuity, all figures shown in this covers both styles of compressors and clearly identifies the differences manual will use a diaphragm compressor where applicable.
  • Page 11 PROHEAT M-SERIES G-II PCM SERVICE MANUAL...

  • Page 12: Model Descriptions

    MODEL DESCRIPTIONS Please refer to the M-Series Parts Book at www.proheat.com for detailed part descriptions and part numbers. Included in the parts book are optional features such as a timer, coolant pump and associated installation equipment and maintenance tools. The following information describes the general characteristics of M-Series models covered in this manual: Heat Output, G-II PCM CANbus, Voltage, Fuel Fitting optional configurations, and Air Intake optional configurations.
  • Page 13 Splash Guard, Straight and Right Angle Snorkel Attachments. Configurations The M-Series can be equipped with a splash guard, straight and right angle intake snorkels. Refer to parts book at www.proheat.com NOTICE For continuity, all figures shown in this manual will use a splash guard intake.

  • Page 14: Technical Specifications

    DANGER FUEL TYPES COMPATIBLE Diesel (ULSD, #1, #2, Arctic), JP8, Jet A1 Do not use gasoline. Bio Fuels - Contact Proheat www.proheat.com SYSTEM OUTPUTS AUXILIARY OUTPUT Same as Power Supply Voltage Maximum 1 Amp draw (over-load shut-off protection) High-side switched...

  • Page 15: Physical - M50/M80

    7. SNORKEL HOSE REQUIRED FOR THIS AIR INTAKE OPTION. 4. THE EXHAUST PIPE SHOULD HAVE A MINIMUM DIAMETER OF CONTACT TECH SUPPORT AT WWW.PROHEAT.COM FOR 2.75", A MAXIMUM LENGTH OF 5' AND HAVE NO MORE THAN LENGTH AND BEND RESTRICTIONS.
  • Page 16 7. SNORKEL HOSE REQUIRED FOR THIS AIR INTAKE OPTION. 4. THE EXHAUST PIPE SHOULD HAVE A MINIMUM DIAMETER OF CONTACT TECH SUPPORT AT WWW.PROHEAT.COM FOR 2.75", A MAXIMUM LENGTH OF 5' AND HAVE NO MORE THAN LENGTH AND BEND RESTRICTIONS.
  • Page 17 7. SNORKEL HOSE REQUIRED FOR THIS AIR INTAKE OPTION. 4. THE EXHAUST PIPE SHOULD HAVE A MINIMUM DIAMETER OF CONTACT TECH SUPPORT AT WWW.PROHEAT.COM FOR 2.75", A MAXIMUM LENGTH OF 5' AND HAVE NO MORE THAN LENGTH AND BEND RESTRICTIONS.
  • Page 18 7. SNORKEL HOSE REQUIRED FOR THIS AIR INTAKE OPTION. 4. THE EXHAUST PIPE SHOULD HAVE A MINIMUM DIAMETER OF CONTACT TECH SUPPORT AT WWW.PROHEAT.COM FOR 2.75", A MAXIMUM LENGTH OF 5' AND HAVE NO MORE THAN LENGTH AND BEND RESTRICTIONS.
  • Page 19 7. SNORKEL HOSE REQUIRED FOR THIS AIR INTAKE OPTION. 4. THE EXHAUST PIPE SHOULD HAVE A MINIMUM DIAMETER OF CONTACT TECH SUPPORT AT WWW.PROHEAT.COM FOR 2.75", A MAXIMUM LENGTH OF 5' AND HAVE NO MORE THAN LENGTH AND BEND RESTRICTIONS.
  • Page 20 7. SNORKEL HOSE REQUIRED FOR THIS AIR INTAKE OPTION. 4. THE EXHAUST PIPE SHOULD HAVE A MINIMUM DIAMETER OF CONTACT TECH SUPPORT AT WWW.PROHEAT.COM FOR 2.75", A MAXIMUM LENGTH OF 5' AND HAVE NO MORE THAN LENGTH AND BEND RESTRICTIONS.

  • Page 21: G-Ii Pcm Electrical

    G-II PCM ELECTRICAL PROHEAT M-SERIES G-II PCM SERVICE MANUAL...

  • Page 22: Torque Specifications

    • Torque nozzle to fuel block to 150 in. lbs. ± 10 in. lbs. (16.9 Nm ± 1.1 Nm). Nozzle Assembly • Torque nozzle to nozzle stem to 30 in. lbs. ± 3 in. lbs. (3.4Nm ± .3 Nm). PROHEAT M-SERIES G-II PCM SERVICE MANUAL...

  • Page 23: Ignition Module

    • Torque sensor to 100 in. lbs. ± 10 in. lbs. (11.6 Nm ± 1.1 Nm). Burner Head/Heat Exchanger • Torque bolts (2) to 100 in. lbs. ± 10 in. lbs. (11.6 Nm ± 1.1 Nm). 1-10 PROHEAT M-SERIES G-II PCM SERVICE MANUAL...
  • Page 24 • Torque screws (2) to 75 in. lbs. ± 3 in. lbs. (8.5 Nm ± 0.3 Nm). Relief Valve – for Use with Rotary Vane Compressor ONLY Serial Numbers 600000 – 699999 • Torque to 25 in. lbs. ± 3 in. lbs. (2.8 Nm ± 0.3 Nm). PROHEAT M-SERIES G-II PCM SERVICE MANUAL 1-11...
  • Page 25 1-12 PROHEAT M-SERIES G-II PCM SERVICE MANUAL...

  • Page 26: Principles Of Operation

    Electronic control module that monitors inputs from the sensors and controls (PROHEAT Control Module) outputs to PROHEAT components. It has an integrated Flame Sensor that photo- electrically measures the intensity of the flame to determine if a flame is present.
  • Page 27 Coolant Pump: Circulates coolant through the PROHEAT and vehicle heating system. Depending on the PROHEAT installation, it may be operated by the G-II PCM. Air Relief: Regulates air pressure to the fuel nozzle.
  • Page 28 Figure 2-1. PROHEAT M-SERIES G-II PCM SERVICE MANUAL...

  • Page 29: Theory Of Operation

    THEORY OF OPERATION There are four basic systems within the Proheat. 1. The Air Compressor The purpose of the Air compressor is to deliver a metered amount of clean compressed air to the nozzle. As the blower motor turns it drives a diaphragm type compressor through a set of gears.
  • Page 30 REG. VENTURI EFFECT FUEL ATMOSPHERIC FUEL PUMP PRESSURE FILTER FUEL 0 PRESSURE FUEL FUEL TANK SOLENOID 5 –10 psi (N.C.) FUEL DELIVERY REGULATOR BLOCK SCREEN SCREEN Figure 2-2. M80 Fuel Delivery Theory of Operation. PROHEAT M-SERIES G-II PCM SERVICE MANUAL...

  • Page 31: Modes Of Operation

    • Coolant reaches 185°F (85°C). • A fault is detected. Go to Section 4.0 Troubleshooting and Repair, page 4-1. • The PROHEAT is operating in Ignition or Full Output when it is switched off. PROHEAT M-SERIES G-II PCM SERVICE MANUAL...

  • Page 32: Preheat Mode

    The ON/OFF switch lamp, timer lamp or OEM indicator (installation options) will turn off. In addition, the G-II PCM Indicator Light will turn OFF. If the PROHEAT is in Full Output, it will Cool Down (Purge) first and then shut “OFF”.

  • Page 33: Supplemental Mode

    In addition, the G-II PCM Indicator Light will turn OFF. Switch “OFF” If the PROHEAT is in Full Output, it will Cool Down (Purge) first and then shut Signal “OFF”. If the PROHEAT is in Standby, it will shut “OFF” immediately.
  • Page 34 Removed turn OFF. (Engine off) If the PROHEAT is in Full Output, it will Cool Down (Purge) first and then shut “OFF”. If the PROHEAT is in Standby, it will shut “OFF” immediately. 9. Fault Shut If the PROHEAT diagnostics sense a system or component fault, the PROHEAT will...
  • Page 35 2-10 PROHEAT M-SERIES G-II PCM SERVICE MANUAL...

  • Page 36: Maintenance Tools

    MAINTENANCE TOOLS The following list is the minimum recommended tools to properly service the M-Series. Please refer to the M-Series parts book at www.proheat.com for additional PROHEAT service tools and computer software. Minimum Proheat Service Tools 1. Remote Start Switch (P/N PK0091) 2.
  • Page 37 • 2x Combination Wrench, 3/4" • Combination Wrench, 5/8" • Combination Wrench, 9/16” • Combination Wrench, 7/16” • Wire Brush • Adjustable Wrench • Vise Grip • Torque Wrench 25 – 150 in. lbs. [2.8 – 17 Nm] PROHEAT M-SERIES G-II PCM SERVICE MANUAL...

  • Page 38: Troubleshooting And Repair

    Check the diagnostic indicator light, and if it's flashing, determine the code based on page 4-3. STEP 3 If no code is indicated, turn the PROHEAT off and then on again using the existing operational switches, timer or a PROHEAT remote start switch (PROHEAT P/N PK0091).

  • Page 39: System And Component Diagnostics

    4.1 SYSTEM AND COMPONENT DIAGNOSTICS The G-II PCM continually monitors the PROHEAT operating conditions. If the G-II PCM detects a problem, the indicator light flashes a diagnostic code(s) on the G-II PCM status LED. The diagnostic indicator light may also be located: •...

  • Page 40: Diagnostic Code 7

    Configuration error on the first occurrence (Status light on solid RED). 10 consecutive start faults (Status light Flashing Code 1 in RED). Overheat on the first occurrence (Status light Flashing Code 4 in RED). PROHEAT M-SERIES G-II PCM SERVICE MANUAL...
  • Page 41 GREEN during which time the flame sensor must detect a proper flame. • In this error example, the PROHEAT does not detect proper flame during the 30 second ignition period and the PROHEAT enters Fault Detection – Cool Down (Purge).
  • Page 42 Remove the fuel supply line from the PROHEAT fuel inlet. PROHEAT will smoke and stumble b) Using a length of fuel line connected from the PROHEAT fuel inlet to a until the air is purged from the direct source of CLEAN fuel. Switch the PROHEAT on and operate for at system.
  • Page 43 Reconnect the fuel supply line. Figure 4-3: FDU Fuel Filter Location. h) Switch the PROHEAT on and operate for at least one complete cycle. Observe the operation. NOTICE If a Start diagnostic code is indicated, proceed to Step 3.
  • Page 44 (1 Flash) a) For Fuel Nozzle and O-ring damage and/or contamination. b) For correct Fuel Nozzle for the PROHEAT BTU rating. (Refer to Parts Manual.) Test Procedure – Fuel Nozzle removal, inspection and cleaning or replacement: a) Disconnect all harnesses at the G-II PCM.
  • Page 45 NOTICE Reconnect the electrical harnesses and fuel supply line. All plugs/harnesses must be rein- k) Switch the PROHEAT on and operate for at least one complete cycle. stalled into the G-II Proheat Control Observe the operation. Module (G-II PCM) before heater goes back into service.
  • Page 46 Test Procedure – Air Compressor pressure (all models): a) Disconnect all harnesses at the G-II PCM. To avoid the risk of shock and to ensure that the PROHEAT does not b) Disconnect the fuel supply line. fire, disconnect the Ignition Module...
  • Page 47 Figure 4-9. If the pressure cannot be set to the correct setting, rebuild kits are available. See www.proheat.com for the latest parts manual SL9151 for more information. m) Turn heater off. Wait until Cool Down (Purge) mode is complete (approximately 3 minutes).
  • Page 48 Install pressure Relief Valve & Pressure Gauge on to Pressure Gauge Adapter. Orient Burner Head similar to assembled on heater. k) Connect Power Harness and Remote Switch to the G-II PCM. Switch the PROHEAT on and observe the air pressure: WARNING Connect power and switch only. DO...
  • Page 49 All plugs/harnesses must be rein- hesitation initially due to air in the fuel line. stalled into the G-II Proheat Control s) Remove the remote switch and re-connect the control connection. Module (G-II PCM) before heater goes back into service.
  • Page 50 START: Fuel System Step 5 Fuel Solenoid Valve – Check: (1 Flash) a) Valve plunger – mechanical fault. Test the PROHEAT operation; Fuel Solenoid Valve plunger removed. NOTICE Procedure – Fuel Solenoid Valve Mechanical Function: It is recommended that the Fuel a) Disconnect all harnesses at the G-II PCM.
  • Page 51 Observe the operation. flow of fuel and extinguish the flame. The hot combustion gases can cause If the PROHEAT runs OK, the Fuel Solenoid Valve is faulty. Go to Fuel damage to the heater if this test is Solenoid Valve replacement.
  • Page 52 Torque to 75±7 in-lbs. Note orientation of fuel regulator screen plate. If required, re-install the two Gears and Idler Shaft into the Compressor Flange ensuring the area is clean and free of debris. Lubricate both Gears with diesel fuel prior to installation. PROHEAT M-SERIES G-II PCM SERVICE MANUAL 4-15...
  • Page 53 NOTICE q) Reconnect the electrical harnesses and fuel supply line. All plugs/harnesses must be rein- Switch the PROHEAT on and operate for at least one complete cycle. stalled into the G-II Proheat Control Observe the operation. Module (G-II PCM) before heater goes back into service.
  • Page 54 To avoid the risk of shock and to ensure that the PROHEAT does not Switch the PROHEAT on and read the fuel pressure (should be 5 – 10 PSI): fire, disconnect the Ignition Module If the pressure is out of range, Go to Fuel Supply Pump cleaning, page 4-18.
  • Page 55 Reinstall electrical harnesses and fuel supply line. All plugs/harnesses must be rein- stalled into the G-II Proheat Control o) Switch the PROHEAT on and operate for at least one complete cycle. Module (G-II PCM) before heater Observe the operation.
  • Page 56 Lock Washers. Torque to 75 ±7 in-lbs. All plugs/harnesses must be rein- Re-install the Flame Shield, Ignition Electrodes and the Fuel Solenoid stalled into the G-II Proheat Control Valve Connector. Module (G-II PCM) before heater m) Re-install the Burner Head onto the Heat Exchanger (not shown) using goes back into service.
  • Page 57 DIAPHRAGM OR ROTARY VANE COMPRESSOR: 500000 – TO DATE 5/8" .935" [15.9 mm] [23.5 mm] 1.055" [26.8 mm] .173" [4.4 mm] 13/32" [10.7 mm] 5/32" [4 mm] Figure 4-22: Burner Head Removal and Ignition Electrode Removal. 4-20 PROHEAT M-SERIES G-II PCM SERVICE MANUAL...
  • Page 58 Switch the PROHEAT on and observe for a spark. Spark will continue for WARNING five seconds. Keep blower housing on to avoid If the spark is OK, reinstall the burner head and review Fuel System injury when Motor starts up.
  • Page 59 Ensure that the combustion tube orientation boss is aligned with the heat exchanger flange notch. b) Ensure that the combustion tube 'slits' are clean. HEAT EXCHANGER FLANGE NOTCH ORIENTATION BOSS MOUNTING BOLTS TORQUE = SEE SECTION 1.3 Figure 4-25: Combustion Tube Orientation. 4-22 PROHEAT M-SERIES G-II PCM SERVICE MANUAL...
  • Page 60 The fault is in the fuel supply system. Troubleshoot the Flame Out diagnostic code based on: 1. Fuel supply to the PROHEAT. Go to page 4-5 & page 4-6, Step 1 & 2. • Fuel tank pick-up. • Fuel fittings.
  • Page 61 Troubleshoot the Coolant Flow diagnostic code based on: 1. Vehicle coolant system. Go to Step 1. • The PROHEAT starts and runs for 90 seconds in Preheat mode or 60 seconds in Standard and Supplemental modes or less and shuts down with a Coolant Flow diagnostic code indicated.
  • Page 62 An Overheat will put the heater in Lockout Mode (requires power to the G-II Repeatedly resetting the PROHEAT PCM to be removed and reapplied) on the first occurrence of an Overheat. without resolving the Overheat diagnostic code will damage the heat exchanger. PROHEAT M-SERIES G-II PCM SERVICE MANUAL 4-25...
  • Page 63 Indicates that the supply voltage to the G-II PCM is outside the operating range for more then 10 seconds. Operating Range: • 12 volt PROHEAT – 10 to 16 volts. • 24 volt PROHEAT – 18 to 32 volts. Troubleshoot the Voltage diagnostic code based on: 1.
  • Page 64 1. The PROHEAT reached 185°F (85°C) cycled off and entered Cool Down (Purge). After 20 seconds a flame was still detected. 2. The PROHEAT was switched on and a flame (signal) was detected in Pre-check. Troubleshoot the Flame Fault diagnostic code based on: 1.
  • Page 65 Figure 4-29: Temperature Sensor. WARNING Temperature Sensor replacement: a) Isolate the coolant system at the PROHEAT inlet and outlet ports for NEVER remove coolant lines when minimal coolant loss using valves in the system or hose clamps. the engine/system is HOT – escaping b) Remove main sensor mount using a 1"...

  • Page 66: Fuel Solenoid Valve Diagnostic Code 8

    (8 Flashes) Fuel Solenoid Valve circuit. Troubleshoot the Fuel Solenoid Valve diagnostic code based on: Fuel Solenoid Valve Coil or PROHEAT G-II PCM electrical. WARNING Test Procedure – Fuel Solenoid Valve and G-II PCM test: To avoid the risk of shock and to a) Disconnect all harnesses at the G-II PCM.

  • Page 67: Ignition Module Diagnostic Code 10

    All plugs/harnesses must be rein- If no damage or corrosion is found the Ignition Module is faulty. Go to Ignition stalled into the G-II Proheat Control Module (G-II PCM) before heater Module replacement, this page.

  • Page 68: Coolant Pump Diagnostic Code 11

    Switch the PROHEAT on and observe for a diagnostic code. NOTICE If a Coolant Pump diagnostic code is NOT indicated and the PROHEAT All plugs/harnesses must be rein- operates, the Coolant Pump is faulty. Go to Coolant Pump replacement.

  • Page 69: Motor Diagnostic Code 12

    Reconnect the motor harness, install the blower housing, connect the power and switch harnesses at the G-II PCM. All plugs/harnesses must be rein- stalled into the G-II Proheat Control e) Switch the PROHEAT on. Module (G-II PCM) before heater If Motor diagnostic code is still indicated, Motor is faulty.
  • Page 70 Reinstall (4) screws. All plugs/harnesses must be rein- Reconnect the Motor connector at the G-II PCM. stalled into the G-II Proheat Control m) Reinstall the blower, blower retaining snap ring, Air Compressor filter and Module (G-II PCM) before heater blower housing.

  • Page 71: Auxiliary Output Diagnostic Code 13

    PROHEAT back to the switch. See OEM recommended service requirements. Module (G-II PCM) before heater goes back into service. If the PROHEAT does not function, the G-II PCM is faulty. Go to G-II PCM replacement, page 4-38. 4-34 PROHEAT M-SERIES G-II PCM SERVICE MANUAL...

  • Page 72: Indicator Output Diagnostic Code 15

    Remove the existing switch harness at the G-II PCM. b) Remote start the PROHEAT using the PROHEAT remote start switch (PROHEAT P/N PK0091). If the PROHEAT functions correctly, the fault is in the wiring from the PROHEAT back to the switch indicator light. See OEM recommended service requirements.

  • Page 73: Component Mechanical Or Electrical Problems

    Go to page 4-20. 4.2.7 G-II PCM Fuse Protects the G-II PCM against high current. When switched on, the PROHEAT will NOT start, attempt to start, or indicate a diagnostic code. Troubleshoot a Blown Fuse based on: 1. Voltage supply to the PROHEAT.
  • Page 74 G-II PCM—Locate and measure across pins C and E in the G-II PCM Data Link connection. Perform this with the PROHEAT off and then switched on. If the voltage is within the operating range and a Voltage diagnostic code is indicated, the G-II PCM is faulty.
  • Page 75 Remove the fuse cover and using needle nose pliers or a fuse removal tool remove the fuse. If the fuse is blown, replace the fuse and check the PROHEAT current draw. Go to page 4-26. If the fuse is OK, the G-II PCM is faulty. Go to G-II PCM replacement below.

  • Page 76: Operational Problems

    • Low heat output. 2. Coolant system. Go to page 4-24, Steps 1 and 2. • Short combustion cycles. The PROHEAT is turning on and off at very short intervals. • Low heat output in the vehicle system. Go to page 4-5 to page 4-33, Steps 1 to 7.
  • Page 77 4-40 PROHEAT M-SERIES G-II PCM SERVICE MANUAL...

  • Page 78: Maintenance

    MAINTENANCE Your PROHEAT has been designed to operate with a minimum of maintenance. NOTICE To ensure the efficient operation of your heater an ANNUAL MAINTENANCE The flame hours can be determined TUNE-UP is recommended to be performed each year or every 1000 flame from the G-II PCM data download.

  • Page 79: Annual Maintenance

    • Check the condition of the power source and connections. The heater will not function properly with a faulty power source or corroded connections. • Check that all of the seals on the power connector are present and in good condition. Replace if necessary. PROHEAT M-SERIES G-II PCM SERVICE MANUAL...
  • Page 80 • DO NOT use a welding torch tip cleaner. • Refer to page 4-7. TORQUE = SEE SECTION 1.3 BLOW THIS DIRECTION WHEN USING COMPRESSED AIR. LUBRICATE O-RING WITH DIESEL FUEL Figure 5-4: Fuel Nozzle. PROHEAT M-SERIES G-II PCM SERVICE MANUAL...
  • Page 81 • Important: Complete steps 8 and 9 prior to step 10 compressor check. • Ensure Blower Housing Cover is installed before testing. PRESSURE ADJUSTMENT SCREW FLAME SHIELD DECREASE PRESSURE IGNITION ELECTRODE ASSEMBLY INCREASE PRESSURE DIAPHRAGM PRESSURE COMPRESSOR ADJUSTMENT SCREW Figure 5-6: Compressor Check. PROHEAT M-SERIES G-II PCM SERVICE MANUAL...
  • Page 82 • If there is a problem go to page 4-5 to page 4-27, Steps 1 to 7. b) Coolant system: • For leaks. • For correct system heating process. Go to page 4-24, Steps 1 and 2. PROHEAT M-SERIES G-II PCM SERVICE MANUAL...
  • Page 83 TEST EQUIPMENT 200610K Filter, Air, Element 880035K Fuel Filter PK0036 Digital Manometer PK0067 Test Gauge, Air/Fuel Pressure PK0091 Remote On/Off Switch PK0071 Test Gauge Adapter. Rotary Vane Compressor Models ONLY SN 600000 to 699999. PROHEAT M-SERIES G-II PCM SERVICE MANUAL...

  • Page 84: Rotary Vane Compressor Service & Vanes Installation

    Remove the flame shield. Rotate to match the mounting square. FLAME SHIELD G-II PCM HOUSING SCREWS (2) AIR RELIEF IGNITION ELECTRODE ASSEMBLY MOUNTING BOLTS (2) AIR FILTER Figure 5-7: Access the Compressor and Air Filter. PROHEAT M-SERIES G-II PCM SERVICE MANUAL...
  • Page 85 CAUTION REMOVE Wear eye protection during the BLOWER cleaning process. SPRAY CLEANER DIRECTLY INTO AIR COMPRESSOR INTAKE REMOVE NOZZLE DISCONNECT DISCONNECT FUEL LINE IGNITION MODULE REMOVE AIR RELIEF Figure 5-8: Compressor Cleaning. PROHEAT M-SERIES G-II PCM SERVICE MANUAL...
  • Page 86 If pressure cannot be set correctly, proceed to step 4. SCREW (3) DO NOT BODY BORE & ROTOR LOOSEN – SEE NOTICE WEAR PLATE 9/64" HEX. HEAD SCREW (3) VANES (4) END PLATE Figure 5-9: Compressor Components. PROHEAT M-SERIES G-II PCM SERVICE MANUAL...
  • Page 87 Install Burner Head onto the Heat Exchanger and re-connect wires and fuel line. r) Switch the PROHEAT on and operate for at least one complete cycle. Observe the operation. s) There is a break-in period for the new vanes. After 100 hours of motor operation or one month, repeat Steps 2 and 3.

  • Page 88: Proheat Warranty

    (90) days, which ever is greater. complete warranty manual, please This warranty does not apply to damage or failure of the PROHEAT Heater or the vehicle into go to www.proheat.com which it was installed due to improper installation, assembly, maintenance, abuse, neglect, accident, or the use of parts not supplied by SeaStar Solutions.
  • Page 89 PROHEAT M-SERIES G-II PCM SERVICE MANUAL...
  • Page 90 Canada V6V 1P6 Tel: 604-270-6899 Fax: 604-270-7172 www.proheat.com © 2012 Marine Canada Acquisition Inc. DBA SEASTAR SOLUTIONS Proheat is a registered trademark of Marine Canada Acquisition Inc. and its subsidiary companies. Designed and Manufactured in North America Printed in Canada...

This manual is also suitable for:

M80 g-ii pcmM90 g-ii pcmM105 g-ii pcmM125 g-ii pcm

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