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Installation Guide
69-2198—03 4
The DS/BK terminal is used with a variable-speed fan.
If the HVAC equipment has DS, BK, ODD, or DHUM ter-
minals, wire that terminal to the DS/BK terminal. When
greater than 25% of zones are calling for cooling, this
terminal will be energized and the fan will operate at nor-
mal speed. When 1 zone or fewer than 25% of zones are
calling for cooling, the terminal will be de-energized and
the fan will run at a reduced rate, which will reduce the
amount of air that needs to be bypassed. This reduces
blower speed on most variable speed blowers. Refer to
HVAC equipment manufacturer instructions.
For oil heat with a separate transformer for cooling,
remove this jumper.
For other systems, leave jumper in place and wire to
HVAC R terminal with 18 gauge solid copper wire.
Connect DATS as shown.
5
Connect equipment as shown here
or on pages 5–9.
7
C7735A1000
M24804
DATS
DATS
SENSOR
9
Connect a dedicated transformer as shown.
DEDICATED
TRANSFORMER
R
C
M24806
R
C
POWER
L1
(HOT)
L2
RH
RC
W1/E
W2
W3
Y1
Y2
G
O
B
DS/B
K
M24809
HVAC
FAN RELAY
24 VOLT TRANS.
G
Y
Y2
C
R
W
COMPRESSOR
RELAY
W2
EQUIPMENT
WIRING
Fig. 7
Fig. 9
Fig. 11
8
When a wireless thermostat, Portable Comfort Control, wire-
less outdoor air temperature sensor, or other RedLINK™ wireless
device is used on systems up to four zones, wire the THM4000
Wireless Adapter Module to the ABCD terminals on the zone panel.
For systems with more than 4 zones, see page 11.
M28193
A
B
C
D
WIRELESS
ADAPTER
WIRELESS
CONNECT
POWER
THM4000R
CONNECTED
WIRELESS SETUP
Fig. 10
Connect outdoor air temperature sensor as shown.
Required for dual fuel systems; optional for other
multistage systems. If using the C7089R1013 wireless
outdoor sensor and THM4000R wireless adapter on
2- to 4-zone systems, see page 11.
6
Fig. 8
M28207
OT
OT
SENSORS
C7089U1006
OUTDOOR
TEMPERATURE
SENSOR
CAUTION: Do not wire the A-B-C-D terminals of the THM5320R Wireless Equipment Interface Module
to the A-B-C-D terminals on the HZ322 zone control panel. Doing so will damage the components.
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