Carrier 40UV Installation, Start-Up And Service Instructions Manual page 28

J1
POWER
J4
SERVICE CONNECTOR
J3
CCN
T26
24Vdc
T28
T29
COOLING
OUTPUT
T30
T31
T32
HEATING
OUTPUT
T33
T34
MIXED AIR
T35
DAMPER
OUTPUT
T36
T37
HEATING
ENABLE
T38
COOLING
T39
ENABLE
K3
HI/MED
FAN SPEED
NO NC COM
ADJ — Adjust
AQ — Air Quality
CCN — Carrier Comfort Network® Controls
COM — Common
ENT — Enthalpy Sensor
GND — Ground
MAT — Mixed-Air Temperature Sensor
OA ENTH — Outdoor-Air Enthalpy
OAT —
NOTE: Only one SPT sensor can be used. If wall-mounted sensor option is used,
unit-mounted sensor wire to terminal T1 must be removed.
Fig. 11 — Unit Ventilator Comfort Control Module with Sensor Connections
SPT/RAT
SAT
MAT
OAT
ANALOG
SENSOR
INPUT
SPT ADJ
T10
T12
AQ
T14
RH
T16
FAN STATUS
T18
OA ENTH
REMOTE
T20
S/S
DISCRETE
FIRE SMOKE
SWITCH
INPUTS
T22
LOW LIMIT
CHANGEOVER
T24
SPARE
COMMON
GND
K2
MED/LO
K1
FAN SPEED
FAN ON/OFF
NO COM NO NC
NC
Outdoor-Air Temperature
Sensor
T1
T2
T3
T4
T5
T6
T7
T8
T9
T11
T13
T15
T17
T19
T21
T23
T25
COM
LEGEND
NC — Normally Closed
NO — Normally Open
RAT — Return-Air Temperature Sensor
S/S — Start/Stop
SAT — Supply-Air Temperature Sensor
SPT — Space Temperature Sensor
RH — Relative Humidity
TB — Terminal Block
28
RAT
SAT
MAT
OAT
OPTIONAL
SPT
WALL SENSOR
TB
ENT