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Unit Power Outage
1.
If power to the entire unit goes out, then once power is restored:
a.
If the control signal is restored within 60 seconds of power restoration:
b.
If the control signal is not restored within 60 seconds of power restoration:
2.
Troubleshooting the Issue:
a.
Make sure that a valid control signal and power are restored to the unit.
b.
Turn the override switch on the control panel ON, and an amber light will also turn ON.
c.
All fans will start to operate based on the control signal.
d.
To turn off the override light, send a valid 4-20mA control signal and restart the
Fan Alarm Codes
Vertex™ Evaporative Condenser Operation & Maintenance Manual – Fan Control
i. The unit will go into an emergency mode. An alarm light on the control panel will turn ON and an
alarm signal will be enabled.
ii. Turn the override switch on the control panel ON, and an amber light on the control panel will
also turn ON.
iii. All fans except the affected fan will start to rotate based on the control signal.
i. The unit will operate based on the control signal.
i. The alarm light on the control panel will turn ON and an alarm signal will be enabled.
ii. After power is restored, all fans will rotate at the emergency speed.
Figure 20. Flashing Light indicates Error Code
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