Installing Equipment Interface Module (If Used); Wiring 24 Vac Common; Selecting Discharge And Return Air Temperature; Sensor Mounting Locations - Honeywell TH8320R1003 Vision Pro 8000 Product Data

®
VISIONPRO 8000 WITH REDLINK™
Installing Equipment Interface
Module (if used)
If no Equipment Interface Module is used, skip to "Selecting
Thermostat Location" beginning on page 10.
NOTE: If an EIM is mounted inside a metal cabinet, 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.
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.
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. 6). For wiring diagrams, see "Wiring" beginning
on page 116.
CO NNE CTE
D
CO NN EC
T
NOTE: Link EIM to thermostat BEFORE linking any
RedLINK accessories. See "Linking RedLINK
Accessories" on page 13.
3. If you are installing discharge and return air sensors, see
"Selecting Discharge and Return Air Temperature Sen-
sor Mounting Locations" beginning on page 8).

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.
68-0312—01
Fig. 6.
• 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.
Selecting Discharge and Return Air
Temperature Sensor Mounting
Locations
Refer to the guidelines below and Fig. 7–11 for mounting
locations of the Discharge and Return Air Temperature
Sensors.
Selecting Discharge Air Temperature
Sensor Mounting Location
1. Mount the Discharge Air Temperature Sensor on the
supply duct in a location where the air is mixed well.
Mount the Discharge Air Temperature Sensor out of sight
of the A-Coil/Heat Exchanger when possible. See Fig. 7.
2. When possible, mount the Discharge Air Temperature
Sensor upstream of a Steam Humidifier, a Fan Powered
Humidifier or a Dehumidifier that is ducted to the supply.
See Fig. 8–9.
3. If space does not allow a Discharge Air Temperature
Sensor upstream of a Steam Humidifier or Fan Powered
Humidifier, mount the Discharge Air Temperature Sensor
downstream of the Humidifier. See Fig. 8.
4. If a Bypass Humidifier is installed, mount the Discharge
Air Temperature Sensor downstream of the Bypass
Humidifier. See Fig. 10–11.
Selecting Return Air Temperature Sensor
Mounting Location
1. Install the Return Air Temperature Sensor on the return
duct in a location where the air is mixed well. Mount the
Return Air Temperature Sensor downstream of a Bypass
Humidifier, Dehumidifier or Ventilator. See Fig. 7–11.
MCR34049A
VENTILATOR
OR
DEHUMIDIFIER
MOUNT RETURN
SENSOR HERE
DOWNSTREAM OF
VENTILATOR OR
DEHUMIDIFIER
8
MOUNT DISCHARGE
SENSOR HERE
EXCHANGER
BLOWER
Fig. 7.
A COIL
HEAT
M33074