Power The Thermostat - Honeywell VisionPRO IAQ Product Data

®
VISIONPRO IAQ TOTAL HOME COMFORT SYSTEM
FIELD INSTALLED
JUMPER BETWEEN
R AND VNT 1
NON-POWERED
VENTILATOR
Fig. 18. Typical hookup of fresh air damper.
NOTE: Use this hookup for ventilation using a fresh air
damper.
POWERED
VENTILATOR
Fig. 19. Typical hookup of powered ventilation.
FIELD INSTALLED
JUMPER BETWEEN
DHM 1 AND VNT 1
BLUE
YELLOW
DH90
GREEN
RED
WHITE
Fig. 20. Hookup of Honeywell DH90 with fresh air intake for
ventilation.
68-0287—1
1
2
3
C
24 VAC
R
RC
RH
H1
U
M2
D1
H OR
M2
V1
N
T2
M23493
1
2
3
C
24 VAC
R
RC
RH
H1
U
M2
D1
H OR
M2
V1
N
T2
M23494
1
2
3
C
24 VAC
R
RC
RH
H1
U
M2
D1
H OR
M2
V1
N
T2
FRESH
AIR
DAMPER
M23495

POWER THE THERMOSTAT

• 24 Vac common wire only to EIM or zone panel.
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.
1. Locate and remove the tab labeled, Remove, in the
lower left corner on the thermostat back. See Fig. 21.
REMOVE
TAB
Fig. 21. Remove tab labeled, Remove, on thermostat back
Mount Thermostat to Wallplate
1. Align the terminal screw blocks with the pins on the back
of the thermostat. Push the thermostat straight onto the
wallplate until it snaps into place. See Fig. 22.
WALLPLATE
TERMINAL
SCREW
BLOCK
Fig. 22. Mount thermostat to wallplate.
8
M19920
PINS ON
BACK OF
THERMOSTAT
M23542