Airxcel Aqua-Hot 200 Series, Руководство по обслуживанию

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Fluid Circulation Pump
©Aqua-Hot®
250-D03 Diesel Series Service Manual REV 220302
p. 72
Burner Components
NOTE:
Be sure to remove the jumper wire that was used to
make the connection from the C-1 location to the C-7 location.
Failure to do so will result in an overheating condition during
normal operation.
Figure 116
diesel-burner controller must be replaced. If voltage is
present, proceed to the next circuit test.
DC High-Limit Thermostat Circuit Test:
Locate the diesel-burner controller’s B-plug and C-plug.
Insert the probes of a DC voltmeter into the C-4 (+)
and B-2 (-) locations and turn the diesel burner ON. If a
voltage reading does not register on the voltmeter, the
diesel-burner controller must be replaced. If voltage is
present, proceed to the next circuit test.
Motor Circuit Test:
Locate the diesel-burner controller’s B-plug and C-plug.
Use a jumper wire to make a connection from the C-1
location to the C-7 location. Turn the diesel burner ON
and insert the probes of a DC voltmeter into the C-2 (+)
and C-5 (-) locations. If no voltage reading registers on the
voltmeter, the diesel-burner controller must be replaced.
If voltage is present, proceed to the next circuit test.
Ignition Coil Circuit Test:
Turn the diesel burner OFF and locate the diesel-burner
controller’s C-plug. Also, locate the VDC high-limit
thermostat and disconnect it’s 2-way male plug from the
(white plastic) 6-way female connector. Insert the probes
of a DC voltmeter into the C-8 (+) and C-5 (-) locations and
turn the diesel burner ON. If a voltage reading does not
register on the voltmeter 18-25 seconds after the initial
start-up, the diesel-burner controller must be replaced.
Replacement Procedure:
1. Disconnect the Aqua-Hot from any and all power sources.
2. Remove the B-plug and C-plug from the controller. Gently
slide out the controller from the side of the diesel burner:
3. Slide the new controller onto the side of the diesel burner.
4. Reconnect the B-plug and C-plug.
5. Test for normal operation.
Figure 117
NOTE:
Be sure to reconnect the VDC high-limit thermostat’s
2-way male plug to the 6-way female plug. The diesel burner
will not ignite during normal operation if the VDC high-limit
thermostat is left disconnected.
NOTE: Be sure to install the controller with the plug ports
facing downward. Failure to do so will result in moisture
collecting in the ports and potential damage to the
controller’s internal circuitry.