Carrier 50HCQD07, Installation Instructions Manual

Page: 33 / 52

33
Economizer Module Wiring Details
Use Fig. 46 and Tables 6 and 7 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.
Fig. 46 — W7220 Wiring Terminals
Table 6 — Economizer Module - Left Hand Terminal
Blocks
* Sylk is a trademark of Honeywell International Inc.
Table 7 — Economizer Module - Right Hand Terminal
Blocks
NA
AUX2-
OCC
E-GND
EXH1
AUX1-O
Y2-
Y1-
Y2-O
Y1-O
C
R
5004 88 4 8 -002
Rev. A
NA
A2
OCC
EX
A1
Y2I
Y2O
Y1I
Y1O
C
R
Cert Prod u ct
C a liforni a Title 24, P a rt 6
HJW10
www.energy.c a .gov
MAT
MAT
OAT
OAT
S -BU S
S -BU S
IAQ 2-10
IAQ COM
IAQ 24V
ACT 2-10
ACT COM
ACT 24V
MA
MA
OA
OA
S B
S B
S B
S B
S B
S B
V
C
R
V
C
R
NA
50040 83 9-001
Rev. G
LABEL TYPE DESCRIPTION
Top Left Terminal Block
MAT
MAT 20k NTC
and COM Mixed Air Temperature Sensor (Polarity
Insensitive Connection)
OAT
OAT 20k NTC
and COM Outdoor Air Temperature Sensor
(Polarity Insensitive Connection)
S-BUS
S-BUS S-BUS
(Sylk* Bus) Enthalpy Control Sensor
(Polarity Insensitive Connection)
Bottom Left Terminal Block
IAQ 2-10 2-10 VDC
Air Quality Sensor Input (e.g. CO
2
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
LABEL TYPE DESCRIPTION
Top Right Terminal Blocks
AUX2 I 24 VAC IN The first terminal is not used.
OCC 24 VAC IN
Shut Down (SD) or HEAT (W)
Conventional only
and
Heat Pump Changeover (O-B) in Heat
Pump mode.
E-GND E-GND Occupied/Unoccupied Input
EXH1
24 VAC
OUT
Exhaust Fan 1 Output
AUX1 O
24 VAC
OUT
Programmable:
Exhaust fan 2 output
or
ERV
or
System alarm output
Bottom Right Terminal Blocks
Y2-I 24 VAC IN
Y2 in - Cooling Stage 2 Input from space
thermostat
Y2-O
24 VAC
OUT Y2 out - Cooling Stage 2 Output to stage
2 mechanical cooling
Y1-I 24 VAC IN
Y1 in - Cooling Stage 2 Input from space
thermostat
Y1-O
24 VAC
OUT Y1 out - Cooling Stage 2 Output to stage
2 mechanical cooling
C COM 24 VAC Common
R 24 VAC 24 VAC Power (hot)