25
Remote IAQ Override — If the control is being used with
non-Carrier building management system, it supports the use
of the remote IAQ override switch. This should be connected
to TB6 terminal 13 and 14. Use of this will require the option-
al controls expansion module.
Remote Economizer Position Control — The
Comfort
Link
controller will normally control the position of the econo-
mizer, but it can also support field control of the economizer
position through a 4 to 20 mA signal. If this is used it should
be connected to TB5 terminal 6 and 7. If the signal is a 4 to
20 mA signal, then leave the 182-ohm resistor in place.
Remote Economizer Minimum Position Control — If the
Comfort
Link controller is controlling the economizer but a re-
mote minimum position is required, then an external 100K po-
tentiometer should be connected to TB5 terminal 6 and 7. Re-
move the factory-installed 182-ohm resistor.
Remote Economizer Enable — If the control is being used
with other building management systems and the system will
control the enabling and disabling of the economizer free cool-
ing, this switch input can be connected to TB6 terminals 1 and
2. Note that the controls also support integrated economizer
changeover using outdoor dry bulb, differential dry bulb, out-
door enthalpy, and differential enthalpy.
Remote Occupancy Switch — For interface to other building
management systems the control also supports a switch input
for remote occupancy signals. This wiring can be connected to
terminal TB6 terminal 1 and 3.
Smoke Sensor Interface — The
Comfort
Link controls include
an optional factory-installed return air smoke detector. Remote
alarm circuits can be wired to TB5 terminal 8 and 9.
Fire Shutdown and Smoke Control — The control supports
interface to fire and smoke control systems and allows for the
following system overrides from remote switch inputs.
• Fire Shutdown — Connect to TB5 terminals 10 and 11.
• Smoke Pressurization — Connect to TB5 terminal 12
and 13. This requires the use of the optional controls
expansion module.
• Smoke Evacuation — Connect to TB5 terminal 12 and
14. This requires the use of the optional controls expan-
sion module.
• Smoke Purge — Connect to TB5 terminal 12 and 15.
This requires the use of the optional controls expansion
module.
Demand Limiting — The control can also be used with de-
mand limiting control from remote building management sys-
tems. If a two-stage system is going to be used with redline lim-
iting where the machine is not allowed to increase load and load
shed where the load is decreased to a configurable limit in ca-
pacity then these can be connected to TB6 terminals 4 and 5 and
5 and 6. This requires use of the controls expansion module.
NOTE: Use T55 sensor only.
Fig. 23 — Space Temperature Averaging Wiring
a48-6855
3
4
RED
BLK
TB5
3
4
TB5
S
EN
S
OR 1
S
EN
S
OR 2
S
EN
S
OR
3
S
EN
S
OR 4
S
EN
S
OR 1
S
EN
S
OR 2
S
EN
S
OR
3
S
EN
S
OR 4
S
EN
S
OR 5
S
EN
S
OR 6
S
EN
S
OR 7
S
EN
S
OR
8
S
EN
S
OR 9
S
PACE TEMPERATURE AVERAGING (4
S
EN
S
OR APPLICATION)
S
PACE TEMPERATURE AVERAGING (9
S
EN
S
OR APPLICATION)
