TM 10--3510--221--10
0020 00--4
HEATING SYSTEM TROUBLESHOOTING --
Continued
0020 00
TF FLOW, PUMP INLET PRESSURE, OR PUMP OUTLET PRESSURE LO
1.
Observe operator panel A display (WP 0008 00, Figure 2, 6).
Is ”20 HP INVERTER FAULT” message also displayed?
YES Go to 20 HP INVERTER FAULT (WP 0019 00).
NO Go to step 2.
2.
Observe operation of still condenser fan.
Is condenser fan on?
YES Go to step 3.
NO Go to 20 HP INVERTER FAULT (WP 0019 00).
3.
At heater control enclosure press FP300 RESET switch (WP 0008 00, Figure 4, 4).
4.
Wait about 30 seconds then observe heater operation.
Does burner blower come on?
YES Go to step 5.
NO Notify Maintenance.
5.
Observe operator panel A display (WP 0008 00, Figure 2, 6) for approximately 5 minutes.
Does another ”TF FLOW, PUMP IN PRESS, or PUMP OUT PRESS LO” message appear?
YES Notify Maintenance.
NO Return to normal operation.
END OF WORK PACKAGE
