Outputs; Environmental; S- - Bus Sensor Wiring - Carrier 50TCQD14 Installation Instructions Manual

Outputs —
Actuator signal: 2- - 10 Vdc; minimum actuator impedance
is 2k ohm; bus two- - wire output for bus communicating
actuators.
Exhaust fan, Y1, Y2 and AUX1 O:
All Relay Outputs (at 30 Vac):
Running: 1.5A maximum
Inrush: 7.5A maximum
Environmental —
Operating Temperature: - - 40 to 150_F (- - 40 to 65_C).
Exception of display operation down to - - 4_F with full
recovery at - - 4_F from exposure to - - 40_F
Storage Temperature: - - 40 to 150_F (- - 40 to 65_C)
Shipping Temperature: - - 40 to 150_F (- - 40 to 65_C)
Relative Humidity: 5% to 95% RH non- - condensing
Economizer Module Wiring Details —
Use Fig. 43 and Tables 7 and 8 to locate the wiring
terminals for the economizer module.
NOTE: The four terminal blocks are removable. You can
slide out each terminal block, wire it, and then slide it
back into place.
W7220 Controller
NOTE: The bottom 4 Pin actuator header is not used
Left Terminal
Block Label
Fig. 43 - - W7220 Economizer Module Terminal
Connection Labels
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. 44 and Table 9 to locate the wiring
terminals for each S- - Bus sensor.
Use Fig. 44 and Table 10 to set the DIP switches for the
desired use of the sensor.
Label
MAT
MAT
OAT
OAT
S--- BUS
S--- BUS
IAQ 2--- 10
IAQ COM
IAQ 24V
ACT 2--- 10
ACT COM
ACT 24V
Label
AUX2 I
OCC
E--- GND
EXH1
AUX1 O
Right Terminal
Block Label
C14156
Y2--- I
Y2--- O
Y1--- I
Y1--- O
C
R
28
Table 7 – Economizer Module - -
Left Hand Terminal Blocks
Type Description
Top Left Terminal Block
20k NTC Supply Air Temperature Sensor
and (polarity insensitive connection)
COM
20k NTC Outdoor Air Temperature Sensor
and (polarity insensitive connection)
COM
S--- Bus Enthalpy Control Sensor
(Sylk* Bus) (polarity insensitive connection)
Bottom Left Terminal Block
2--- 10 Vdc Air Quality Sensor Input
(e.g. CO sensor)
2
COM Air Quality Sensor Common
24 Vac Air Quality Sensor 24 Vac Source
2--- 10 Vdc Damper Actuator Output (2--- 10 Vdc)
COM Damper Actuator Output Common
24 Vac Damper Actuator 24 Vac Source
n/a The bottom pin is not used.
Table 8 – Economizer Module - -
Right Hand Terminal Blocks
Type Description
Top Right Terminal Block
n/a The first pin is not used
24 Vac IN Shut Down (SD) or Heat (W)
Conventional only
or
Heat Pump Changeover (O/B) in
Heat Pump mode.
24 Vac IN Occupied / Unoccupied Input
E--- GND Earth Ground --- System Required
24 Vac OUT Exhaust Fan 1 Output
24 Vac OUT Programmable:
Exhaust fan 2 output
or
Erv
or
System Alarm output
Bottom Right Terminal Block
24 Vac IN Y2 in --- Cooling Stage 2 Input from
space thermostat
24 Vac OUT Y2 out --- Cooling Stage 2 Output to
stage 2 mechanical cooling
24 Vac IN Y1 in --- Cooling Stage 1 Input from
space thermostat
24 Vac OUT Y1 out --- Cooling Stage 1 Output to
stage 1 mechanical cooling
COM 24 Vac Common
24 Vac 24 Vac Power (Hot)
* Sylk is a trademark of Honeywell International Inc.