Enclosure lid (optional), Fuel filter fitting, Rotary vane compressor only – Proheat M125 User Manual
Page 24: Diaphragm compressor only
Enclosure Lid (Optional)
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Torque screws (4) to 100 in. lbs. ± 10 in. lbs. (11.6 Nm ± 1.1 Nm).
Fuel Filter Fitting
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Install O-ring onto fitting.
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Torque fitting to 100 ± 10 in. lbs. (11.3 ± 1.1 Nm).
Rotary Vane Compressor ONLY
Serial Numbers 500000 – 699999
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Install O-rings into burner flange.
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Install compressor into burner flange. (Ensure correct alignment—refer to
Compressor Replacement’ on page 5-7.)
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Torque screws (2) to 75 in. lbs. ± 3 in. lbs. (8.5 Nm ± 0.3 Nm).
Relief Valve – for Use with Rotar y Vane Compressor ONLY
Serial Numbers 600000 – 699999
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Torque to 25 in. lbs. ± 3 in. lbs. (2.8 Nm ± 0.3 Nm).
Diaphragm Compressor ONLY
Serial Numbers 70000 and above
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Install O-rings in to cylinder head and valve cover (not shown).
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Ensure connecting rod is at BDC and ensure the diaphragm is concentric
to the diaphragm opening (not shown).
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Torque to 27 in. lbs +/- 3 in. lbs using a crisscross pattern.
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PROHEAT M-SERIES G-II PCM SERVICE MANUAL