Honeywell W7750A specifications Sixtyfifty, Siinvalid

74-2958— 1

70

Table 20. Input/Output Points. (Continued)

Value

Digital

E-Vision

Direct

Hardware

Manual

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

User Address

NvName

Field Name

(Metric) or States plus Range

ofState

Stateor

Default

(M, P,S)

Share

Map

Access

Config.

Config.

Test

Comments

Engineering Units: English

nciIoSelect

FiftySixtyHz

SIXTYFIFTY

01

SIXTY

P

X

FiftySixtyHz specifies the frequency of the main power input for the

controller. Correctly selecting the FiftySixtyHz decreases the noise picked

up by analog switch wiring from the power mains. When FiftySixtyHz is 0

(SIXTY is the default), the mains frequency is sixty Hz and when

FiftySixtyHz is 1 (FIFTY), the mains frequency is fifty Hz.

nciIoSelect

SpaceSensorType

T7770

0

T7770

X

SpaceSensorType specifies the type of space temperature sensor

connected to the node. When SpaceSensorType is 0, a T7770 sensor is

connected to the sensor terminals. No other options are currently valid.

RmtStptPot

nvoIO

siSetPointTempS7

Degrees F

SI_INVALID

M,

X

X

X

SetPointTemp is the wall module setpoint temperature. When

-9 to 85

S

nciConfig.SetPointTemp is ABSOLUTE_COOL or ABSOLUTE_MIDDLE,

Degrees C

the reported value is the absolute setpoint temperature. When

(-23 to 29)

Config.SetPntKnob is OFFSET, the reported value is the offset (from the

current active TempSetPts) temperature. If the input is not configured or

has failed, the value is SI_INVALID.

RmTempSensr

nvoIO

siSpaceTempS7

Degrees F

SI_INVALID

M,

SpaceTemp is the measured space temperature. If the sensor is not

40 to 100

S

configured or has failed, the value is SI_INVALID.NOTE: The reported

Degrees C

temperatures includes the offset correction provided by

(4 to 38)

Config.ResistiveOffsetCal.

DaTempSensr

nvoIO

siDischargeTempS7

Degrees F

Degrees C

SI_INVALID

DischargeTemp is the measured discharge air temperature. If the sensor is

30 to 122

(-1 to 50)

not configured or has failed, the value is SI_INVALID. Refer to the note on

SpaceTemp.

RaTempSensr

nvoIO

siReturnTempS7

Degrees F

Degrees C

SI_INVALID

ReturnTemp is the measured return air temperature. If the sensor is not

30 to 122

(-1 to 50)

configured or has failed, the value is SI_INVALID. Refer to the note on

SpaceTemp.

RaHumSensr

nvoIO

ReturnHumidity

Percentage

SI_INVALID

ReturnHumidity is the measured return air humidity. If the sensor is not

10 to 90

configured or has failed, the value is UB_INVALID.NOTE: The reported

temperatures includes the offset correction provided by

Config.VoltageOffsetCal.

RaEnthSensr

nvoIO

siReturnEnthalpyS7

mA

SI_INVALID

ReturnEnthalpy is the measured return air enthalpy. If the sensor is not

4 to 20

configured or has failed, the value is SI_INVALID. Since the C7400 reports

comfort due to enthalpy (btu/lb) in milliamps, enthalpy is also reported in

milliamps. Refer to the NOTE on ReturnHumidity.

OaTempSensr

nvoIO

siOutdoorTempS7

Degrees F

Degrees C

SI_INVALID

M,

OutdoorTemp is the measured outdoor air temperature. If the sensor is not

-40 to 122

(-40 to 50)

S

configured or has failed, the value is SI_INVALID. Refer to the NOTE on

ReturnHumidity.

OaHumSensr

nvoIO

OutdoorHumidity

Percentage

SI_INVALID

M,

OutdoorHumidity is the measured outdoor air humidity. If the sensor is not

10 to 90

S

configured or has failed, the value is UB_INVALID. Refer to the NOTE on

ReturnHumidity.

OaEnthSensr

nvoIO

siOutdoorEnthalpyS7

mA

SI_INVALID

M,

OutdoorEnthalpy is the measured outdoor air enthalpy. If the sensor is not

4 to 20

S

configured or has failed, the value is SI_INVALID. Since the C7400 reports

comfort due to enthalpy (btu/lb) in milliamps, enthalpy is also reported in

milliamps. Refer to the NOTE on ReturnHumidity.

FltrPressSensr

nvoIO

siFilterPressureS10

inw (kPa)

SI_INVALID

FilterPressure is the measured differential pressure across the return air

0 to 5 (0 to 1.25)

filter. If the sensor is not configured or has failed, the value is the

SI_INVALID. Refer to the NOTE on ReturnHumidity.

EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER