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M-SERIES DIAPHRAGM 

COMPRESSOR REBUILD KIT

Part# 200690K

Disassembly Instructions

4

11

1

5

2

3a

9

10

8

15

7

6

3

4

4

SHOWN IN "R" POSITION

6

To avoid the risk of shock, ensure to 

disconnect power to the heater unit 

during disassembly/reassembly.

 

WARNING

Copy Part# 206000, Rev. E  

Page 1 of 9

Date: 05/2017

© 2010 Marine Canada Acquisition Inc. DBA SEASTAR SOLUTIONS  3831 No. 6 Road, Richmond, B.C. Canada V6V 1P6 

Tel: 604.270.6899 

Web: www.proheat.com

INSTALLATION INSTRUCTIONS

Figure A.

DO NOT discard any component unless 

directed to do so. All mounting hardware 

will be re-used during the installation 

of the compressor kit.

NOTICE

 

1.

 Disconnect all harnesses at the PCM.

 

2.

 Disconnect the fuel supply line.

 

3.

 Referring to figure A, loosen and back out the burner head mounting 

bolts (item 1) allowing enough room to rotate the burner head 15° 

counter-clockwise and remove.

 

4.

 Remove the blower housing (item 3) by removing the two M6 screws 

(item 2). Item 3a may vary in appearance depending on the type of 

heater model. Note initial orientation of blower housing.

 

5.

 Remove the combustion air blower (item 5) by removing the retaining 

ring (item 4).

 

6.

 Disconnect the motor (item 6), fuel solenoid (item 7), and ignition 

module (item 8) at the PCM (item 9), then carefully slide off the PCM 

to avoid damaging the motor wires.

Summary of Contents for 200690K

Page 1: ...ardware will be re used during the installation of the compressor kit NOTICE 1 Disconnect all harnesses at the PCM 2 Disconnect the fuel supply line 3 Referring to figure A loosen and back out the burner head mounting bolts item 1 allowing enough room to rotate the burner head 15 counter clockwise and remove 4 Remove the blower housing item 3 by removing the two M6 screws item 2 Item 3a may vary i...

Page 2: ...iscard the two O rings item 19 20 and cylinder head assembly item 21 12 Remove the 8 screw item 22 from the connecting rod assembly item 23 then remove the intake disk item 24 diaphragm item 25 and compression disk item 26 13 Remove and discard the two O rings item 27 from the burner head flange item 15 28 29 31 18 19 21 22 27 12 14 4 13 33 26 15 25 23 32 24 20 30 17 16 17 Figure B Heat may be req...

Page 3: ...er the disassembly parts checklist ITEM RE USE DISCARD DESCRIPTION QTY UOM 1 X Screw M8 x 1 25 x 30 HWHCS 2 ea 2 X Screw M6 x 1 x 1 25 BHSCS SS 2 ea 3 X Blower Housing 1 ea 4 X Retaining Ring 3 ea 5 X Combustion Air Blower 1 ea 6 X Motor 1 ea 7 X Fuel Solenoid 1 ea 8 X Ignition Module 1 ea 9 X Proheat Control Module PCM 1 ea 10 X Screw M6 x 1 x 16 SHCS SS 4 ea 11 X Motor Gear 1 ea 12 X Compressor ...

Page 4: ... assembly item 34 into the drive hub SECOND NOTE the order of this operation is important 4 Install the spring washer item 35 and snap ring item 36 Ensure the spring washer sits evenly against the bearing surface and the snap ring is properly seated in the groove in the drive hub 5 Install set screw into the connecting rod assembly ensuring that it mates flush to flat face of compressor shaft afte...

Page 5: ...r cannot be installed by hand remove the four screws securing the compressor cover in place and support the compressor shaft as shown in figure C A 13 mm deep socket and soft hammer can then be used to lightly tap gear onto shaft 7 Install the diaphragm assembly items 39 42 onto the connecting rod as shown in figure G NOTE orient the intake disk item 40 and compression disk item 42 with the bevele...

Page 6: ...nder head assembly item 46 and valve cover item 18 and secure with four M5 screws item 16 and lock washers item 17 Torque the screws according to the torque sequence shown in figure I inset 12 Install the compressor cover item 31 and secure with four screws item 30 and lock washers item 17 13 Orient the Motor Gear item 49 as noted in figure J Inset with appropriate side facing Motor flange as per ...

Page 7: ...tallation NOTE Motor item 6 must be re installed according to its original position see orientation marks item figure K inset 15 Install the PCM item 9 then reconnect the motor item 6 fuel solenoid item 7 and ignition module item 8 to their respective terminals NOTE Ensure the PCM is reinstalled in its original orientation Copy Part 206000 Rev E Page 7 of 9 Date 05 2017 2010 Marine Canada Acquisit...

Page 8: ...R M50 6 0 0 1 PSI 41 4 0 7 kPa M80 M90 2 9 0 1 PSI 20 0 0 7 kPa M105 M125 3 65 0 1 PSI 25 1 0 7 kPa 19 Install the heat shield item 29 and ignition electrodes item 28 20 Inspect and Clean Heat Exchanger and Combustion Tube Remove combustion tube to access the inside of the heat exchanger Clean any combustion deposits that may have accumulated on the heat exchanger fins with a wire brush Use a vacu...

Page 9: ...8 Teeth Black 1 ea 50 Loctite 620 5 ml Tube 1 ea 51 Loctite 242 5 ml Tube 1 ea Reassembly Parts Checklist ORIENTATION BOSS HEAT EXCHANGER FLANGE NOTCH COMBUSTION TUBE Figure M 21 Install the burner head back onto the heat exchanger and secure with two screws item 1 22 Operate heater for a minimum of two cycles to ensure functionality Inspect for fuel leaks around the exterior of the burner head an...

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