For this function, it is necessary to connect a chilled water valve end-switch, or chilled water flow switch. When the chiller chilled water valve is commanded on, and the chilled water status is off within the delay defined by ALM-03, then a chilled water valve alarm is generated. The chiller unavailable flag is set (chiller common alarm output) and the chiller shutdown sequence is started.
The Chilled water valve alarm is displayed by DISP-03.
The alarm must be reset (manually or automatic) in order to start-up the chiller again.
Table 7. Chilled water valve alarm behaviour
ALM-03 |
Chilled water valve alarm behaviour |
> 0 |
The Chilled water status is monitored and a Chilled water valve alarm is generated, after expiration of the alarm status delay |
= 0 |
No monitoring is done and no alarms are generated |
Table 8. Parameter List
Description |
Value Range |
Default Value |
Unit |
ALM-03: alarm delay chilled water valve; 0=disable |
0...3600 |
120 |
sec |
DISP-03: chilled water valve alarm |
0/ 1 |
0 |
- |