Wiring - Honeywell TH8320R1003 Installation Manual

WIRING

See Table 9 for Equipment Interface Module terminal descriptions and Table 10 for thermostat terminal descriptions.
Table 9. 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).
Universal relay for humidification,
†
U1 / U1
dehumidification, ventilation, or a stage of
†
U2 / U2
heating/cooling. U terminals are dry contacts that
†
U3 / U3
require power.
‡ Universal input for a wired indoor sensor, outdoor
S1 / S1
sensor, discharge sensor, return sensor, dry
‡
S2 / S2
contact device for alerts or dry contact device for
‡
S3 / S3
remote setback.
‡
S4 / S4
A Connect to THM4000R1000 Wireless Adapter for
B extended wireless range.
C
D
* Remove jumpers when separate transformers are used.
†
See "Wiring IAQ Equipment or a Heat/Cool Stage to the Universal Terminals" beginning on page 130.
‡
See "Dry Contact Alerts" beginning on page 74 for wiring Dry Contact Devices to display alerts.
Description 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).
Universal relay for humidification,
†
U1 / U1
dehumidification, ventilation, or a stage of
†
U2 / U2
heating/cooling. U terminals are dry contacts that
†
U3 / U3
require power.
‡ Universal input for a wired indoor sensor, outdoor
S1 / S1
sensor, discharge sensor, return sensor, dry
‡
S2 / S2
contact device for alerts or dry contact device for
‡
S3 / S3
remote setback.
‡
S4 / S4
A Connect to THM4000R1000 Wireless Adapter for
B extended wireless range.
C
D
117
®
VISIONPRO 8000 WITH REDLINK™
Heat Pump
Description
68-0312—03