Honeywell W7750A specifications Lonmark /Open System Points

74-2958— 1

98

Table 26. LONMARK® /Open System Points. (Continued)

User Address

NvName

Field Name

(Metric) or States plus Range

DigitalStateor ValueofState

Default

E-Vision(M,P,S)

Share

Map

DirectAccess

HardwareConfig.

ManualConfig.

FailureDetect

Comments

E-Vision Legend: (M) Monitor, (P) Parameter, (S) Schematic

Engineering Units: English

CoolOccSpt

nciTempSetPts

occupied_cool

Degrees F

23

P,

X

X

The Cooling Occupied Setpoint is used if no wall module setpoint pot is

(SNVT_temp_setpt)

50 to 95

M

configured as the standard Occupied Cooling Setpoint. Actual Cooling

Degrees C

Setpoint can be affected by various control parameters (such as DlcShed,

(10 to 35)

SrcRmtTempSpt, etc.). Actual room temperature Setpoint is reflected in

RmTempActSpt. Overridden by nviSetPt. Used to compute ZEB.

CoolStbySpt

nciTempSetPts

standby_cool

Degrees F

25

P,

X

X

When the controller is in the Standby mode (typically via an occupancy

(SNVT_temp_setpt)

50 to 95

M

sensor), the base Cooling Setpoint is determined by the Cooling Standby

Degrees C

Setpoint value. Also, when a wall module setpoint pot is configured, this

(10 to 35)

value serves as the upper limit on the user adjustable remote setpoint pot

(wall module).

CoolUnoccSpt

nciTempSetPts

unoccupied_cool

Degrees F

28

P,

X

X

When the controller is in the Unoccupied mode, the unit responds to a call

(SNVT_temp_setpt)

50 to 95

M

for cooling based on the Cooling Unoccupied Setpoint.

Degrees C

(10 to 35)

HeatOccSpt

nciTempSetPts

occupied_heat

Degrees F

21

P,

X

X

When the controller is in the Occupied mode, if the space temperature

(SNVT_temp_setpt)

50 to 95

M

drops below the Heating Occupied Setpoint, the unit switches to the

Degrees C

Heating mode. This Setpoint is used only when there is no wall module

(10 to 35)

setpoint pot configured. Overridden by nviSetPt. Used to compute ZEB.

HeatStbySpt

nciTempSetPts

standby_heat

Degrees F

19

P,

X

X

When the controller is in the Standby mode (typically via an occupancy

(SNVT_temp_setpt)

50 to 95

M

sensor), the base Heating Setpoint is determined by the Heating Standby

Degrees C

Setpoint value. Also, when a wall module setpoint pot is configured, this

(10 to 35)

value serves as the lower limit on the user adjustable remote setpoint pot

(wall module).

HeatUnoccSpt

nciTempSetPts

unoccupied_heat

Degrees F

16

P,

X

X

When the controller is in the Unoccupied mode, the unit responds to a call

(SNVT_temp_setpt)

50 to 95

M

for heating based on the Heating Unoccupied Setpoint.

Degrees C

(10 to 35)

nviRequest

object_id

0 to 65535

1

Request provides the mechanism to request a particular status report (via

(SNVT_obj_request)

Status) for a particular object within this node. Object_id selects the object

being referenced by nviRequest. The only valid value of object_id is 1 for

the RTU object and all others are invalid.

nviRequest

object_request

RQ_NORMAL

0

RQ_NORMAL

When object_request is RQ_NORMAL or RQ_UPDATE_STATUS then the

(SNVT_obj_request)

RQ_DISABLED

1

status (via Status) will be reported for the object addressed by object_id.

RQ_UPDATE_STATUS

2

When object_request is RQ_REPORT_MASK then the status bits will be

RQ_SELF_TEST

3

reported that are supported in nvoStatus by the object addressed by

RQ_UPDATE_ALARM

4

object_id. Bits that are supported by the object are set to one. All other

RQ_REPORT_MASK

5

object_request items are not supported at this time and will return an

RQ_OVERRIDE

6

invalid_request (Status) in the object status.

RQ_ENABLE

7

RQ_RMV_OVERRIDE

8

RQ_CLEAR_STATUS

9

RQ_CLEAR_ALARM

10

RQ_NUL

255

EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER