Baltimore Aircoil Company TrilliumSeries TRF, Operation & Maintenance Manual

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TrilliumSeries™ Adiabatic Cooler - TRF Operation & Maintenance Manual – Alarms & Troubleshooting
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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 Condition
Trigger Criteria
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
Release Criteria
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
Troubleshooting
• Check Pump X and wiring
• Check Pump X Current Switch and wiring
General Alarm DO
True
Effect
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
Parameter Condition
Trigger Criteria
The unit will issue the alarm when the following is true:
• 3 Pump X No Current Alarms have occurred
Release Criteria
The unit will release the alarm when the following is true:
• Pump X Lockout is cleared
Troubleshooting
• Check Pump X and wiring
• Check Pump X Current Switch and wiring
General Alarm DO
True
Effect
Pump X will be locked out from starting.
Table 38. Pump X Lock Out Alarm
Parameter Condition
Trigger Criteria
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
Release Criteria
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
Troubleshooting
• Check Leaving Fluid Temperature sensor installation
• Check Leaving Fluid Temperature sensor and wiring
General Alarm DO
True
Effect
Emergency Flag = True
Table 39. Low Leaving Fluid Temperature Alarm