Proheat M Series User manual

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M-SERIES DIAPHRAGM
REPLACEMENT KIT
Part# 200685K
Disassembly Instructions 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. Turn the Burner head over as shown in figure B. Remove the
ignition electrode (item 16) then the flame shield (item 17).
5. Remove the valve cover (item 7) by removing the four M5 screws
(item 5) and lock washers (item 6), then remove the cylinder head
(item 10).
6. Remove and discard the two O-rings (items 8 and 9) from the
valve cover (item 10), and the two O-rings (item 15) from the
burner head flange (item 4).
7. Remove the #8 screw (item 11) from the connecting rod assembly
(item 21), then remove the intake disk (item 12), diaphragm (item
13) and compression disk (item 14).
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To avoid the risk of shock, ensure to
disconnect power to the heater unit
during disassembly/reassembly.
WARNING
Figure B.
Copy Part# 206500, Rev. C Page 1 of 4
Date: 05/2017
© 2010 Marine Canada Acquisition Inc. DBA SEASTAR SOLUTIONS 3831 No. 6 Road, Richmond, B.C. Canada V6V 1P6 Tel: [phone] 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

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25
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23
NOTE ORIENTATION
24
23
TORQUE:
25 ± 3 IN-LBS
NOTE
ORIENTATION
NOTE
ORIENTATION
DIAPHRAGM
OPENING
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 Burner Head Flange 1 ea
5 X Screw, M5 x 0.8 x 30 SHCS ZP 4 ea
6 X Lockwasher, #10 SS 8 ea
7 X Valve Cover 1 ea
8 X O-Ring, 2-035 1 ea
9 X O-Ring, 2-031 1 ea
10 X Cylinder Head 1 ea
11 X Screw, #8-32 x 1/2, FHSCS SS 1 ea
12 X Intake Disk 1 ea
13 X Diaphragm 1 ea
14 X Compression Disk 1 ea
15 X O-Ring, 2-010 2 ea
16 X Ignition Electrodes 1 ea
17 X Flame Shield 1 ea
18 X Screw, M5 x 0.8 x 10, SHCS SS 4 ea
19 X Compressor Cover 1 ea
20 X Compressor Shaft Assembly 1 ea
8. Remove the compressor cover (item 19) by removing the four
M5 screws (item 18) and lock washers (item 6).
9. Discard all of the remaining components as per the disassembly
parts checklist.
Figure C.
1. Install the diaphragm assembly (items 22–25) onto the connecting
rod. NOTE: orient the intake disk (item 23) and compression
disk (item 25) with the beveled side pointing away from burner
head flange (see figure C inset).
2. Install two O-rings (item 26) into the burner head flange (item 4).
Reassembly Instructions
Copy Part# 206500, Rev. C Page 2 of 4
Date: 05/2017
© 2010 Marine Canada Acquisition Inc. DBA SEASTAR SOLUTIONS 3831 No. 6 Road, Richmond, B.C. Canada V6V 1P6 Tel: [phone] Web: www.proheat.com
INSTALLATION INSTRUCTIONS

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27
10
28
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19
ENSURE CONNECTING ROD IS CENTERED
IN DIAPHRAGM OPENING
TORQUE:
27 ± 3 IN-LBS
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TORQUE:
27 ± 3 IN-LBS
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TORQUE SEQUENCE
3. Install two O-rings (items 27 & 28) into the valve cover (item 7).
4. Position the connecting rod assembly (item 21) so that it is in
BDC (see figure D), and ensure the diaphragm (item 24) is
concentric to the “diaphragm opening”.
NOTE: this operation is CRITICAL prior to proceeding onto step 5.
5. Install the cylinder head assembly (item 10) and valve cover
(item 7) and secure with four M5 screws (item 5) and lock
washers (item 6). Torque the screws according to the torque
sequence shown in figure E inset.
6. install the compressor cover (item 19) and secure with four screws
(item 18) and lock washers (item 6).
Figure D.
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TDC
ENSURE COUNTER-WEIGHT IS ALIGNED BOTTOM
DEAD CENTER (BDC) BEFORE INSTALLATION
BDC
Figure E.
MODEL AIR PRESSURE SETTING
M50 6.0 ± 0.1 PSI (41.4 ± 0.7 kPa)
M80 2.9 ± 0.1 PSI (20.0 ± 0.7 kPa)
7. Install the heat shield (item 17) and ignition electrodes (item 16).
8. Set Compressor Pressure (refer to figure F).
Refer to M-Series Service Manual SL9150 at www.proheat.com
for detailed instructions. Air filter and nozzle must be clean for
compressor setting. Inspect air passages of fuel block and
clean as required.
Copy Part# 206500, Rev. C Page 3 of 4
Date: 05/2017
© 2010 Marine Canada Acquisition Inc. DBA SEASTAR SOLUTIONS 3831 No. 6 Road, Richmond, B.C. Canada V6V 1P6 Tel: [phone] Web: www.proheat.com
INSTALLATION INSTRUCTIONS

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9. Install the heat shield (item 17) and ignition electrodes (item 16).
10. 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 vacuum to suck
the combustion deposits out. Ensure that the exhaust pipe is
clean and free from restriction.
Clean the combustion tube with a wire brush. Reinstall combustion
tube into the heat exchanger ensuring that the orientation boss
is at the 12 o’clock position as shown in figure G.
11. Install the burner head back onto the heat exchanger and secure
with two screws (item 1) as shown in figure H.
12. Operate heater for a minimum of two cycles to ensure functionality.
Inspect for fuel leaks around the exterior of the burner head and
heat exchanger.
ORIENTATION
BOSS
HEAT EXCHANGER
FLANGE NOTCH
COMBUSTION TUBE
Figure G.
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PRESSURE
ADJUSTMENT
SCREW
DECREASE
PRESSURE
GAUGE (P/N PK0067)
INCREASE
PRESSURE
Figure F.
ITEM DESCRIPTION QTY UOM
22 Screw, #8-32 x 1/2, FHS CS SS 1 ea
23 Intake Disk 1 ea
24 Diaphragm 1 ea
25 Compression Disk 1 ea
26 O-Ring, 2-010 2 ea
27 O-Ring, 2-035 1 ea
28 O-Ring, 2-031 1 ea
29 Cylinder Head 1 ea
Reassembly Parts Checklist
Figure H.
PK0067 Pressure Test Gauge is required
to complete the rebuild. It is NOT
supplied in the rebuild kit.
Go to www.proheat.com for more
information.
NOTICE
Copy Part# 206500, Rev. C Page 4 of 4
Date: 05/2017
© 2010 Marine Canada Acquisition Inc. DBA SEASTAR SOLUTIONS 3831 No. 6 Road, Richmond, B.C. Canada V6V 1P6 Tel: [phone] Web: www.proheat.com
INSTALLATION INSTRUCTIONS