Carrier WeatherMaster Puron 48HC D17 Service And Maintenance Instructions page 56

ECONOMIZER MODULE WIRING DETAILS
Use Fig. 71 and Tables 22 and 23 to locate the wiring terminals
for the Economizer module.
NOTE: The four terminal blocks are removable. Slide out each
terminal block, wire it, and then slide it back into place.
MAT
MA
MAT
MA
OAT
OA
OAT
OA
S-BUS
SB
SB
S-BUS
SB
SB
SB
SB
V
IAQ 2-10
C
R
IAQCOM
IAQ 24V
V
C
ACT 2-10 R
NA
ACT COM
ACT 24V
50040839-001
Rev. G
Fig. 71 — W7220 Wiring Terminals
Table 22 — Economizer Module
(Left Hand Terminal Blocks)
LABEL TYPE
Top Left Terminal Block
MAT
20k NTC Mixed Air Temperature Sensor (Polarity
MAT
and COM Insensitive Connection)
OAT
20k NTC Outdoor Air Temperature Sensor (Polarity
OAT
and COM Insensitive Connection)
S-BUS
S-BUS Enthalpy Control Sensor
S-BUS
(Sylk* Bus) (Polarity Insensitive Connection)
Bottom Left Terminal Block
Air Quality Sensor Input (e.g. CO
IAQ 2-10
2-10 vdc
sensor)
IAQ COM
COM Air Quality Sensor Common
IAQ 24V
24 vac Air Quality Sensor 24 vac Source
ACT 2-10
2-10 vdc Damper Actuator Output (2-10 vdc)
ACT COM
COM Damper Actuator Output Common
ACT 24v
24 vac Damper Actuator 24 vac Source
*Sylk is a trademark of Honeywell International Inc.
NA
AUX2-
NA
OCC
A2
OCC
E-GND
EXH1
EX
A1
AUX1-O
Certified FDD Product
California Title 24, Part 6
HJW10
www.energy.ca.gov
Y2-
Y2I
Y2O
Y2-O
Y1I
Y1-
Y1O
Y1-O
C
R
C
R
50048848-002
Rev. A
DESCRIPTION
2
Table 23 — Economizer Module
(Right Hand Terminal Blocks)
LABEL TYPE
Top Right Terminal Blocks
AUX2 I
24 vac IN
OCC
24 vac IN
E-GND
E-GND
EXH1
24 vac OUT Exhaust Fan 1 Output
AUX1 O
24 vac OUT
Bottom Right Terminal Blocks
Y2-I
24 vac IN
24 vac OUT Y2 out - Cooling Stage 2 Output to stage
Y2-O
Y1-I
24 vac IN
Y1-O
24 vac OUT
C
COM
R
24 vac
S-Bus Sensor Wiring
The labels on the sensors and controller are color coded for
ease of installation. Orange labeled sensors can only be wired
to orange terminals on the controller. Brown labeled sensors
can only be wired to S-bus (brown) terminals. Use Fig. 72 and
Table 24 to locate the wiring terminals for each S-Bus and en-
thalpy control sensor.
S-BUS
TERMINALS
(1 AND 2)
Fig. 72 — S-Bus Sensor DIP Switches
56
DESCRIPTION
The first terminal is not used.
Shut Down (SD) or HEAT (W)
Conventional only
and
Heat Pump Changeover (O-B) in Heat
Pump mode.
Occupied/Unoccupied Input
Programmable:
Exhaust fan 2 output
or
ERV
or
System alarm output
Y2 in - Cooling Stage 2 Input from space
thermostat
2 mechanical cooling
Y1 in - Cooling Stage 2 Input from space
thermostat
Y1 out - Cooling Stage 2 Output to stage
2 mechanical cooling
24 vac Common
24 vac Power (hot)
DIP
SWITCH
LABEL
DIP
SWITCHES
(3)
S-BUS
2 PIN SIDE
CONNECTOR