Aqua-Hot AHE-100-02S-12 VDC Service Manual Page 83

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Page 83
© 2011 Aqua-Hot
®
AHE-100-02S Hydronic Heating System Service Manual—Rev. B
APPENDIX C: FUEL PRESSURE CHECK AND ADJUSTMENT
A fuel pressure gauge is used to properly check the fuel pump’s pressure setting. The fuel pump is preset to 145 PSI. Perform the
following procedures to check for a proper fuel pressure setting.
NOTE:
In order to perform the following procedure it is necessary to detach and
reattach the diesel-burner head. Be sure to review the detaching/attaching instructions.
Instructions for Checking Fuel Pressure
NOTE:
Step 1: Remove the diesel-burner
1. Refer to the section on detaching/reattaching the diesel burner, to detach the diesel burner.
Figure C1
Step 2: Installing the fuel pressure gauge
1. Using a 5/8” and a 3/4” wrench remove the fuel nozzle.
Figure C2
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