Installation Sheet

Installation Guide
69-2198—05 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
normal 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 reduc-
es 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
COMPRESSO
R
RELAY
W2
EQUIPMENT
WIRING
Fig. 7
Fig. 9
Fig. 11
8
When a wireless thermostat, Portable Comfort Control, wireless
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 wire-
less outdoor sensor and THM4000R wireless adapter
on 2 to 4-zone systems, see page 11.
6
Fig. 8
M28207
OT
OT
SENSORS
C7089U1006
OUTDOOR
TEMPERA
TURE
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.