Honeywell THX9321 Prestige 2.0 System Installation Manual page 17

Economizer Module wiring guides
Typical wiring of a W7213/W7214 Economizer Module for a heat pump system,
using a Prestige THX9321 thermostat or Equipment Interface Module.
W7213/W7214 Economizer Module
(See wiring guidelines provided with the product)
O or B
N
3
4
1
2 & 5
TR1
TR
Typical wiring of a W7212 Economizer Module for a conventional heating system,
using a Prestige THX9321 thermostat or Equipment Interface Module.
W7212 Economizer Module
(See wiring guidelines provided with the product)
N
3
4
1
2 & 5
TR1
TR
"A" or "L/A" terminal must be configured for Economizer in the installer setup (ISU 2220).
1
These terminals are powered by the cooling transformer (Rc terminal).
2 Terminal AUX 2 is present only on the Equipment Interface Module.
Transformer
120
24
VAC VAC
Transformer
120
24
VAC VAC
17
THX9321/9421 Prestige
Rooftop Unit
O/B N Y1 Y2
O/B L/A Y Y2
1
R
Thermostat/EIM
C
Rooftop Unit
N Y1 Y2
A Y Y2
1
R
Thermostat/EIM
C
IAQ and RF EIM
®
AUX AUX 2 G
AUX AUX 2 G
2
MCR32956A
W1 W2 G
W W2 G
MCR32957A
69-2490—05