Economizer Module Wiring Details - Carrier WeatherMaster 48HC Series Installation Instructions Manual

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ECONOMIZER MODULE WIRING DETAILS

Use Fig. 65 and Tables 9 and 10 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
MAT
OAT
OAT
S-BUS
S-BUS
IAQ 2-10
IAQCOM
IAQ 24V
ACT 2-10
ACT COM
ACT 24V
50040839-001
Rev. G
Fig. 65 — W7220 Wiring Terminals
Table 9 — Economizer Module - Left Hand Terminal
LABEL TYPE
Top Left Terminal Block
MAT 20k NTC
MAT and COM
OAT 20k NTC
OAT and COM
S-BUS S-BUS
S-BUS (Sylk* Bus)
Bottom Left Terminal Block
IAQ 2-10 2-10 vdc
IAQ COM COM
IAQ 24V 24 vac
ACT 2-10 2-10 vdc
ACT COM COM
ACT 24v 24 vac
*Sylk is a trademark of Honeywell International Inc.
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MA
NA
MA
A2
OA
OCC
OA
EX
SB
SB
A1
SB
SB
Certified FDD Product
California Title 24, Part 6
HJW10
SB
SB
www.energy.ca.gov
V
Y2I
C
R
Y2O
Y1I
V
Y1O
C
R
C
NA
R
50048848-002
Blocks
DESCRIPTION
Mixed Air Temperature Sensor (Polarity
Insensitive Connection)
Outdoor Air Temperature Sensor (Polarity
Insensitive Connection)
Enthalpy Control Sensor
(Polarity Insensitive Connection)
Air Quality Sensor Input (e.g. CO
sensor)
Air Quality Sensor Common
Air Quality Sensor 24 vac Source
Damper Actuator Output (2-10 vdc)
Damper Actuator Output Common
Damper Actuator 24 vac Source
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Table 10 — Economizer Module - Right Hand
LABEL
AUX2 I
OCC
E-GND
EXH1
NA
AUX1 O
AUX2-
OCC
E-GND
Y2-I
EXH1
Y2-O
AUX1-O
Y1-I
Y1-O
C
R
S-Bus Sensor Wiring
Y2-
The labels on the sensors and controller are color coded for ease of
Y2-O
installation. Orange labeled sensors can only be wired to orange
terminals on the controller. Brown labeled sensors can only be
Y1-
wired to S-bus (brown) terminals. Use Fig. 66 and Table 11 to lo-
Y1-O
cate the wiring terminals for each S-Bus sensor.
Use Fig. 65 and Table 11 to locate the wiring terminals for each
C
enthalpy control sensor.
R
Rev. A
2
Fig. 66 — S-Bus Sensor DIP Switches
42
Terminal Blocks
TYPE DESCRIPTION
Top Right Terminal Blocks
24 vac IN The first terminal is not used.
Shut Down (SD) or HEAT (W)
Conventional only
24 vac IN and
Heat Pump Changeover (O-B) in Heat
Pump mode.
E-GND Occupied/Unoccupied Input
24 vac OUT Exhaust Fan 1 Output
Programmable:
Exhaust fan 2 output
or
24 vac OUT
ERV
or
System alarm output
Bottom Right Terminal Blocks
Y2 in - Cooling Stage 2 Input from space
24 vac IN
thermostat
24 vac OUT Y2 out - Cooling Stage 2 Output to stage
2 mechanical cooling
Y1 in - Cooling Stage 2 Input from space
24 vac IN
thermostat
Y1 out - Cooling Stage 2 Output to stage
24 vac OUT
2 mechanical cooling
COM 24 vac Common
24 vac 24 vac Power (hot)
DIP
SWITCH
LABEL
DIP
SWITCHES
(3)
S-BUS S-BUS
TERMINALS 2 PIN SIDE
(1 AND 2) CONNECTOR