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11. Alarms & Troubleshooting
All the possible alarms as well as troubleshooting recommendations are listed in Table 37 through Table 62. Unit alarm codes
are listed in Table 63 and fan alarm codes are listed in Table 64.
Parameter
Trigger Criteria
Release Criteria
Troubleshooting
General Alarm DO
Effect
Parameter
Trigger Criteria
Release Criteria
Troubleshooting
General Alarm DO
Effect
Parameter
Trigger Criteria
Release Criteria
Troubleshooting
General Alarm DO
Effect
TrilliumSeries™ Adiabatic Cooler - TRF Operation & Maintenance Manual – Alarms & Troubleshooting
The unit will issue the alarm when all the following are true:
• Pump X Contact is On for 10 consecutive seconds
• Pump X Current Switch is False for 3 consecutive seconds
The unit will release the alarm when any of the following are true:
• Pump X Contact is Off
• Pump X Contact is On AND Pump X Current Switch is True
• Check Pump X and wiring
• Check Pump X Current Switch and wiring
True
If this alarm occurs 3 times, Pump X will be locked out and the alarm must be
cleared via the HMI.
Table 37. Pump X No Current Alarm
The unit will issue the alarm when the following is true:
• 3 Pump X No Current Alarms have occurred
The unit will release the alarm when the following is true:
• Pump X Lockout is cleared
• Check Pump X and wiring
• Check Pump X Current Switch and wiring
True
Pump X will be locked out from starting.
Table 38. Pump X Lock Out Alarm
The unit will issue the alarm when any of the following are true:
• Control Type = LFT Ctrl AND Fluid Type = Water AND Leaving Fluid Temperature
≤ 10 °C for 3 consecutive seconds
• Control Type = LFT Ctrl AND Fluid Type = Glycol AND Leaving Fluid Temperature
≤ 7.2 °C for 3 consecutive seconds
The unit will release the alarm when any of the following are true:
• Control Type = LFT Ctrl AND Fluid Type = Water AND Leaving Fluid Temperature
> 13 °C for 3 consecutive seconds
• Control Type = LFT Ctrl AND Fluid Type = Glycol AND Leaving Fluid Temperature
> 10.2 °C for 3 consecutive seconds
• Control Type ~= LFT Ctrl
• Check Leaving Fluid Temperature sensor installation
• Check Leaving Fluid Temperature sensor and wiring
True
Emergency Flag = True
Table 39. Low Leaving Fluid Temperature Alarm
Condition
Condition
Condition
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