WaterFurnace Envision (XL) User Manual

Page 35

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ENVISION 7-25 TONS INSTALLATION MANUAL

36

The network variables will be listed by point type:instance

convention. 2:1 would mean point type 2, point instance 1.

All volatile points will revert to the uncommanded values

after a power interruption.

Analog Input (Type 0)

0:1 Space Temp

[Read, shows the sensor value connected to

terminals RS and AIC on the terminal board]

0:2 Disch Air Temp

[Read, shows sensor value connected to AI4 on

the

FX10]

0:3 Freez Temp 1

[Read, shows the water coil heat exchanger

temperature For circuit 1.]

0:4 Freez Temp 2

[Read, shows the water coil heat exchanger

temperature For circuit2.]

0:5 Active Clg Setpt

[Read, shows the active cooling setpoint value]

0:6 Active Htg Setpt

[Read, shows the active heating setpoint value]

0:7 Freez Temp Limit

[Read, shows the low temperature limit of the

water coil heat exchanger.]

0:8 nvoAlarms

[Read, shows the current alarm status of the heat

pump, 0=No alarms, 1=Condensate detected,

2=Compressor 1 Hi Discharge Pressure,

3=Compressor 1 Low Suction Pressure, 4=Circuit

1 Low Temp Limit on Coax, 5= Compressor 2 Hi

Discharge Pressure, 6= Compressor 1 Low

Suction Pressure, 7= Circuit 1 Low Temp Limit

on Coax, 8=Circuit 1 Bad Refrigerant Temp Sensor,

9= Circuit 2 Bad Refrigerant Temp Sensor]

0:9 Economizer Temp

[Read, Shows the source water temperature for

Economizer operation.(effective on units released

after

8/11/07]

Analog Output (Type 1)

1:1 Common

Setpoint

[Write, Adjust the midpoint value between Active

Clg Setpt and Active Htg Setpt, raises and lowers

both from a single command.]

1:2 Space Temp Ovrd

[Write, Override the space temperature.]

Analog Value (Type 2)

2:1 Occupied

Cool

[Read/Write, Occupied cooling setpoint,

nonvolatile]

2:3 Occupied Heat

[Read/Write, Occupied heating setpoint,

nonvolatile]

2:2 Unoccupied Cool

[Read/Write, Unoccupied cooling setpoint,

nonvolatile]

2:4 Unoccupied Heat

[Read/Write, Unoccupied heating setpoint,

nonvolatile] Shutdown with antifreeze,

nonvolatile.]

2:5 Economizer Setpt

[Read/Write, adjust the temperature threshold for

economizer operation.]

2:6 Max Htg Setpt

[Read/Write, The upper limit that the heating

setpoint may be adjusted to.]

2:7 Min Clg Setpt

[Read/Write, The lower limit that the cooling

setpoint may be adjusted to.]

2:8 Remote Setpt Max

[Read/Write, Sets the upper value for the remote

setpoint adjust. A 2 setting gives you + 2 degrees

maximum.]

2:9 Remote Setpt Min

[Read/Write, Sets the lower value for the remote

setpoint adjust. A 2 setting gives you - 2 degrees

maximum.]

2:10 Zone Temp Offset

[Read/Write, This value is added to the sensor

value for For zone temp, and the sum is shown

on the Space Temp Variable. This is used for

calibrating the Space Temperature, nonvolatile.]

2:11 Economizer TempOffset

[Read/Write, This value is used for calibrating the

Economizer water temperature.]

Binary Input (Type 3)

3:1 Blower Cmd Status

[Read, shows the commanded status of the blower.]

3:2 Comp1 Cmd Status

[Read, shows the commanded status of

compressor

1]

3:3 Comp2 Cmd Status

[Read, shows the commanded status of

compressor

2]

3:4 Rev Valve Status

[Read, shows the reversing valve position,

inactive = heating, active = cooling.]

3:5 BO-5 ElectHeat

[Read, shows command status of BO-5 for

electric

heat]

3:6 BO9 Spare

[Read, shows command status of BO-9]

Optional FX10 Microprocessor Control - BACnet Variables

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