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NOTES
170
4) Chilled Water Frost Protection (Chiller)
Function
Input
Using NV network variable : SNVT_switch, nviChillWFrostP
Operation Chilled Water Frost Protection control
Function
Output
Using NV network variable : SNVT_switch, nvoChillWFrostP
Operation Chilled Water Frost Protection monitor
h Valid Range
NV
Field
value
SNVT_switch
state
5) Demand limit Range (Chiller)
Function
Input
Using NV network variable : SNVT_lev_percent, nviDemandLimit
Operation Demand limit Range control
Function
Output
Using NV network variable : SNVT_lev_percent, nvoDemandLimit
Operation Demand limit Range monitor
h Valid Range
NV
SNVT_lev_percent
6) Cool Water Target Temperature (Chiller)
Function
Input
Using NV network variable : SNVT_temp_p, nviCoolwaterTemp
Operation Cool Water Target Temperature control
Function
Output
Using NV network variable : SNVT_temp_p, nvoCoolwaterTemp
Operation Cool Water Target Temperature monitor
h Valid Range
NV
SNVT_lev_percent
Chilled Water Frost Protection input
Chilled Water Frost Protection display
not used (set in 0% usually)
Demand limit Range input
Demand limit Range display
Cool Water Target Temperature input
Cool Water Target Temperature display
Operation
0 = OFF
1 = ON
Operation
0 ~ 100 %
Operation
5 ~ 15 °C
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