Viconics VT7200 (Echelon) Integration Manual - Manual (Page 18)

18
Note 1:
How to use nviHeatCool, nviAuxHeatEnable and SeqOpera (Sequence of Operation) variables:
Current
nviHeatCool NviAuxHeat
Enable =
Enabled NviAuxHeat
Enable =
Disabled Current SeqOpera If nviHeatCool
changed to: New SeqOpera
2 Pipe Application
3 = HVAC_COOL X 0 = Cooling Only 1= HVAC_HEAT 1 = Heating Only
3 = HVAC_COOL X 2 = Cooling & Reheat 1= HVAC_HEAT 3 = Heating & Reheat
1 = HVAC_HEAT X 1 = Heating Only 3= HVAC_COOL 1 = Cooling Only
1 = HVAC_HEAT X 3 = Heating & Reheat 3= HVAC_COOL 2 = Cooling & Reheat
4 Pipe Application
3 = HVAC_COOL X 0 = Cooling Only
0= HVAC_AUTO
1= HVAC_HEAT 4 = Cool/Heat 4 Pipes
1 = Heating Only
3 = HVAC_COOL X 2 = Cooling & Reheat
0= HVAC_AUTO
1= HVAC_HEAT 5 = Cool/Heat 4P & Reheat
3 = Heating & Reheat
1 = HVAC_HEAT X 1 = Heating Only
0= HVAC_AUTO
3= HVAC_COOL 4 = Cool/Heat 4 pipes
1 = Cooling Only
1 = HVAC_HEAT X 3 = Heating & Reheat
0= HVAC_AUTO
3= HVAC_COOL 5 = Cool/Heat 4P & Reheat
2 = Cooling & Reheat
0 = HVAC_AUTO X 4 = Cool/Heat 4 Pipes
1= HVAC_HEAT
3= HVAC_COOL 1 = Heating Only
0 = Cooling Only
0 = HVAC_AUTO X
5 = Cool/Heat 4P &
Reheat
1= HVAC_HEAT
3= HVAC_COOL 3 = Heating & Reheat
2 = Cooling & Reheat