Installing Equipment Interface Module (If Used); Wiring 24 Vac Common - Honeywell TH8320R1003 Installation Manual

®
VISIONPRO 8000 WITH REDLINK™
Guidelines for Installing RedLINK
Devices
— When installing more than one Thermostat and Equipment
Interface Module, mount the Equipment Interface Modules
at least 2 feet apart for best RedLINK performance. No
minimum distance is required between the Thermostats if
the Thermostat is linked to an Equipment Interface Module.
— When the Thermostat is wired directly to the equipment (No
Equipment Interface Module and No TrueZONE Wireless
Adapter), mount the Thermostats at least 2 feet apart for
best RedLINK performance.
— To determine if a RedLINK device will communicate
properly in the installed location, during the connection
process, press and quickly release the connect button on
the RedLINK device at the desired mounting location. If the
RedLINK device connects, then it will work reliably during
normal operation. If the RedLINK device does NOT
connect, try a new location. During the connection process,
the signal is sent at low power and during normal operation
the signal is sent at high power.
— To connect a RedLINK device, make sure to press and
quickly release the connect button on the RedLINK device.
Press and holding the connect button down too long will not
allow the device to connect.
— If you link the Thermostat to the TrueZONE Wireless
Adapter, you will NOT be able to do the following: control
humidification, dehumidification or ventilation, setup a
program schedule remotely from a computer, smart phone
or tablet, work with the Wireless Indoor Sensor, Entry / Exit
Remote or the Vent and Filter Boost Remote. To use these
features, wire the Thermostat directly to the zone panel or
use an Equipment Interface Module.
— If you are using a RedLINK device from a previous
installation, you must reset the device first before you re-
connect it to the new Thermostat/Equipment Interface
Module. See page 116 for more information.
Installing Equipment Interface
Module (if used)
If no Equipment Interface Module is used, skip to "Selecting
Thermostat Location" beginning on page 11.
NOTE: If an EIM is mounted inside a metal cabinet, such
as a commercial rooftop unit, it is recommended
to use a THM4000R1000 Wireless Adapter for
extended wireless range. Mount the Wireless
Adapter outside the metal cabinet and connect to
the ABCD terminals at the EIM. The Wireless
Adapter functions as a remote antenna for the
EIM. After it is wired to the EIM, it automatically
takes over as the antenna for RedLINK communi-
cation. For best RedLINK performance, avoid
mounting the Wireless Adapter above the roof
deck or outside the exterior walls.
NOTE: If you install more than one thermostat and EIM,
the EIMs must be at least 2 feet apart for best
RedLINK performance.
CAUTION
Electrical Hazard.
Can cause electrical shock or equipment damage.
Disconnect power before wiring.
68-0312—03
The Equipment Interface Module (EIM) can be mounted
vertically on the HVAC equipment or on a wall in the equipment
room.
1. Mount the EIM near the HVAC equipment, or on the
equipment itself. Use screws & anchors as appropriate
for the mounting surface.
2. To wire the EIM, strip 1/4" insulation, then insert wires
(see Fig. 7). For wiring diagrams, see "Wiring" beginning
on page 117.
WIRELESS
ADAPTER
WIRELESS SETUP
CONNECTED
Fig. 6. THM4000R1000 Wireless Adapter wired to the EIM.
CO NNE CTE
D
CO NN EC
T
NOTE: Link EIM to thermostat BEFORE linking any
RedLINK accessories. See "Linking RedLINK
Accessories" on page 14.
3. If you are installing discharge and return air sensors, see
"Selecting Discharge and Return Air Temperature Sen-
sor Mounting Locations" beginning on page 9).

Wiring 24 Vac Common

• Single-Transformer System—Connect the common side of
the transformer to the C screw terminal of the EIM. Leave
the metal jumper wires in place between R, RC, and RH.
• Two-Transformer System—Connect the common side of the
cooling transformer to the C screw terminal of the EIM.
Remove the metal jumper wire between RC and RH.
Connect the hot side of heating transformer to RH and leave
the jumper wire between R and RC and connect the hot
side of cooling transformer to R or RC.
8
EIM
A
THM4000R
B
POWER
C
CONNECT
D
Fig. 7.
MCR34049A