Replacing An Equipment Interface Module; Wiring - Honeywell Home THX9321 Prestige 2.0 Manual

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THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE
REPLACING AN EQUIPMENT
INTERFACE MODULE
When you replace an EIM, you must reset the RedLINK
accessories before connecting them to the new thermostat.
Follow the instructions below:
At the Thermostat
1. Press MENU, scroll down and select Installer Options,
enter the password (Date Code) when prompted,
scroll down and select Wireless Manager, scroll down
and select Remove Device, then select This Thermo-
stat.
2. Follow the prompts on the screen to connect the
thermostat to the new EIM.

WIRING

See Table 13 for Equipment Interface Module terminal descriptions and Table 14 for thermostat terminal descriptions.
Table 13. Equipment Interface Module Terminal Designation Descriptions.
Conventional System
Terminal
C Common wire from 24 VAC transformer.
R* Power wire from 24 VAC transformer.
RH* Heating power
RC* Cooling power
W Heat Stage 1
W2 Heat Stage 2
W3 Heat Stage 3
Y Compressor Stage 1
Y2 Compressor Stage 2
G Fan Relay
A Connect to Economizer Module or Lighting
Panel (TOD).
† Relay for humidification, dehumidification,
U1 / U1
ventilation, or a stage of heating/cooling. U
†
U2 / U2
terminals are dry contacts that require power.
†
U3 / U3
‡ Input for a wired indoor sensor, outdoor sensor,
S1 / S1
discharge sensor, return sensor, dry contact
‡
S2 / S2
device for alerts or dry contact device for
‡
S3 / S3
remote setback.
‡
S4 / S4
A Connect to THM4000R1000 Wireless Adapter
B for extended wireless range.
C
D
* Remove jumpers when separate transformers are used.
†
See "Wiring IAQ Equipment or a Heat/Cool Stage to the U Terminals" beginning on page 148 or "Wiring IAQ Equipment or
a Heat/Cool Stage to the U Terminals" beginning on page 148.
‡
See "Dry Contact Alerts" beginning on page 93 for wiring Dry Contact Devices to display alerts.
68-0311—08
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IAQ WITH EIM
Description
At the Portable Comfort Control
1. Press and hold the blank space (or arrow) in the lower
right hand corner of the screen until the display
changes (hold for about 4 seconds). See Fig. 321.
2. Press REMOVE, then YES to disconnect from the old
thermostats. To reconnect the thermostat, go to
"Linking RedLINK™ Accessories" beginning on
page 16.
At the Indoor Sensor, RedLINK Internet
Gateway, Entry/Exit Remote, Vent-Filter
Boost Remote or TrueSTEAM Wireless
Adapter
1. Press and hold the CONNECT button on the acces-
sory until the status light glows amber (hold for about
10 seconds).
2. To reconnect the thermostat, go to "Linking
RedLINK™ Accessories" beginning on page 16.
Heat Pump
Terminal
C Common wire from 24 VAC transformer.
R Power wire from 24 VAC transformer.
RH Heating power
RC Cooling power
O/B Changeover valve for heat pumps
AUX 1 Backup Heat Stage 1/Emergency Heat Stage 1
AUX 2 Backup Heat Stage 2/Emergency Heat Stage 2
Y Compressor Stage 1
Y2 Compressor Stage 2
G Fan Relay
L/A Connect to Compressor Monitor, Zone Panel,
Economizer Module or Lighting Panel (TOD).
† Relay for humidification, dehumidification,
U1 / U1
ventilation, or a stage of heating/cooling. U
†
U2 / U2
terminals are dry contacts that require power.
†
U3 / U3
‡ Input for a wired indoor sensor, outdoor sensor,
S1 / S1
discharge sensor, return sensor, dry contact
‡
S2 / S2
device for alerts or dry contact device for
‡
S3 / S3
remote setback.
‡
S4 / S4
A Connect to THM4000R1000 Wireless Adapter
B for extended wireless range.
C
D
134
Description