Envision Peripherals IM1609 10, IM1609 08 BACnet Variables, Analog Input Type, Analog Output Type

ENVISION CONSOLE INSTALLATION MANUAL

Envision Console Controls

BACnet Variables

The variables will be listed with the point type and instance preceding the variable name.

Analog Input (Type 0)

0:1 Space Temp

[Read only, shows the space temperature] 0:2 Discharge Air Temp

[Read only, field mounted sensor unless supplied as a factory special]

0:3 Effective Clg Setpt

[Read only, shows the active cooling setpoint] 0:4 Effective Htg Setpt

[Read only, shows the active heating setpoint] 0:5 Space Humidity

[Read]

0:6 Water Coil Temp

[Read, shows the refrigerant temperature at its coldest, for predictive freeze condition detection]

0:7 Low Temp Limit

[Read, shows the water coil low temperature (freeze sensing) limit that will result in unit shutdown.]

0:8 ECM Cmd Output

[Read, shows the commanded speed (0-100%) of the ECM Blower]

0:9 Alarms Enumerated

[Read only, 0=no alarms, 1=condensate alarm, 2=Compressor Hi Discharge Pressure alarm, 3=Compressor low Suction Pressure alarm, 4=Freeze sensing alarm, 8=Faulty Freeze Sensor alarm, 9=Loss of Charge]

0:10 AO2 Value

[Read, shows the output value (0-100%) of AO2]

Analog Output (Type 1)

1:1 Space Setpoint

[Write, Raise and lower the heating and cooling setpoints from a single command point(volatile, reverts to ‘uncommanded’ after power outage).]

1:2 ECM Fan Ovrd

[Write, allows network direct control of the ECM blower speed (volatile, reverts to ‘uncommanded’ after power outage)]

1:3 AO2 Override

[Write, allows network direct control of the Analog Output 2, volatile, reverts to ‘uncommanded’ after power outage)]

1:4 Space temp Ovrd

[Write, allows the network to send space temperature values to the heat pump controller, volatile, these will supersede any temperature sensor connected to the space temperature Analog Input.]

Analog Value (Type 2)

2:1 Occupied Cool

[Write, Cooling setpoint in Occupied mode] 2:2 Unoccupied Cool

[Write, Cooling setpoint in Unoccupied mode] 2:3 Occupied Heat

[Write, Heating setpoint in Occupied mode] 2:4 Unoccupied Heat

[Write, Heating setpoint in Unoccupied mode] 2:5 Temporary Occ Time

[Write, set the duration of the temporary occupancy timer which is initiated by pressing the button on the zone sensor]

2:6 Remote Setpt Span

[Write, sets the offset range that the setpoint knob on the zone sensor may apply to the effective Htg/ Clg setpoints]

2:7 Remote Setpt Bias

[Write, biases the entire readjust range of the remote setpoint adjust to allow zeroing from the network.]

2:8 Space Temp Offset

[Write, Adds an offset to the Space Temp value for calibration]

2:9 Dehumidify Setpt

[Write, sets the humidity value that will cause the heat pump to enter passive dehumidification]

2:10 Low Temp Limit Adj

[Write, sets the water coil low temperature (freeze sensing) limit for shutdown]

Binary Input (Type 3)

3:1 Fan Cmd Status

[Read, show the commanded condition of the Fan Output,Inactive=Off, Active=On]

3:2 Comp Cmd Status

[Read, show the commanded condition of the Compressor Output, Inactive=Off, Active=On]

3:3 Comp Hi Capacity Cmd

[Read, show the commanded condition of the ‘Hi Capacity’ Compressor control, Inactive=Off, Active=On.]

3:4 Reversing Valve

[Read, show the commanded condition of the Reversing Valve Output, Inactive =Heating, Active =Cooling]

3:5 Accessory 1 Output

[Read, Shows the commanded value of the X1 (Accessory

3:8 Alarm Status

[Read, shows the in alarm/out of alarm status, Inactive=Off, Active=On]

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