Sensors; T10 - Remote Space Temperature Sensor - Carrier 30GTN Service And Troubleshooting Manual

T10 — REMOTE SPACE TEMPERATURE SENSOR —
Sensor T10 (part no. HH51BX006) is an accessory sensor
that is remotely mounted in the controlled space and used
for space temperature reset. The sensor should be installed
as a wall-mounted thermostat would be (in the conditioned
space where it will not be subjected to either a cooling or
heating source or direct exposure to sunlight, and 4 to 5 ft
above the floor). The push button override button is not sup-
ported by the ComfortLink™ Controls.
Space temperature sensor wires are to be connected to ter-
minals in the unit main control box. The space temperature
sensor includes a terminal block (SEN) and a RJ11 female
connector. The RJ11 connector is used to tap into the Carrier
Comfort Network (CCN) at the sensor.
To connect the space temperature sensor (Fig. 11):
1. Using a 20 AWG twisted pair conductor cable rated for
the application, connect 1 wire of the twisted pair to one
SEN terminal and connect the other wire to the other SEN
terminal located under the cover of the space temperature
sensor.
2. Connect the other ends of the wires to terminals 5 and 6
on TB5 located in the unit control box.
Units on the CCN can be monitored from the space at the
sensor through the RJ11 connector, if desired. To wire the
RJ11 connector into the CCN (Fig. 12):
IMPORTANT: The cable selected for the RJ11 con-
nector wiring MUST be identical to the CCN commu-
nication bus wire used for the entire network. Refer to
table below for acceptable wiring.
MANUFACTURER
Regular Wiring
Alpha
American
Belden
Columbia
Manhattan
Quabik
1. Cut the CCN wire and strip ends of the red (+), white
(ground), and black (−) conductors. (If another wire color
scheme is used, strip ends of appropriate wires.)
2. Insert and secure the red (+) wire to terminal 5 of the
space temperature sensor terminal block.
PART NO.
Plenum Wiring
1895 —
A21451 A48301
8205 884421
D6451 —
M13402 M64430
6130 —
3. Insert and secure the white (ground) wire to terminal 4 of
the space temperature sensor.
4. Insert and secure the black (−) wire to terminal 2 of the
space temperature sensor.
5. Connect the other end of the communication bus cable to
the remainder of the CCN communication bus.
SPT (T10) PART NO. HH51BX006
SENSOR
SEN
SEN
Fig. 11 — Typical Space Temperature
Sensor Wiring
TO CCN
COMM 1
BUS (PLUG)
AT UNIT
Fig. 12 — CCN Communications Bus Wiring
to Optional Space Sensor RJ11 Connector
14
TB5
5
6
T-55 SPACE
SENSOR
6
CCN+ 5
CCN GND 4
3
CCN-
2
1