Trident Water Management System
(cont.)
Abnormal Operation
(cont.)
Networker Error 42
Drain - Failure to drain tank once the ServoSeal is closed (cont.)
Operation sequence on start up cycle:
If the closed circuit on the water sensors has not cleared on the next start up of the
cooler, then the Cooler operation will commence as follows:
•
ServoSeal opens and drain valve closes (20 seconds).
•
The Water inlet solenoid will open provided the water level is not already at the
High Water Level Sensor (closed circuit).
•
The pump will start operating because the Low Water Level Sensor indicates
water is at a sufficient level for the pump.
However, if both the Low and High Water Level Sensors have failed short circuit, then
the Low Water Level Sensor failure will be forced after 120 minutes of pump
operation.
Error 40 code will be displayed, alternating with this drain error, when and if the water
inlet solenoid is open.
Because both the Low and the High Water Level Sensors are closed circuit, the water
inlet solenoid will remain closed.
As the water inlet solenoid will not open, the coolers tank will not fill, and/or any water
that was present will eventually evaporate.
This condition will not harm the pump, but will result in poor and inadequate cooling
performance.
To rectify this condition, refer to Service Checks section.
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