Models
9801
i
,
9815
i
and
9820
i
Quick Start Installation Manual
111-321D
Installation DOs and DON’Ts
DO
•
Shut off all power to system before installing.
•
Read entire manual before installing.
•
Make sure that all wiring conforms to
national and local codes.
DO NOT
•
Install on voltages greater than 30 VAC.
•
Short jumper across terminals on the gas
valve or at the system control.
•
Connect ground to any terminal in
this unit.
•
Install on outside walls or in direct sunlight.
Select location for installation.
1
Open the case with a screwdriver. Place
in slot and gently pry forward at all four
locations.
2
Mark mounting hole locations on wall.
3
Drill
3
/
16
” holes at marked locations on
wall. Insert plastic anchors into holes.
4
Align unit base over plastic anchors
embedded in wall and secure with the
screws provided.
5
Connect wiring between unit and
furnace. For Model 9801i (1H/1C
furnace applications).
6
Cut
out
opening
a
b
1/4"
1-1/2"
1"
1
2
3
4
Mark mounting hole
locations on wall using
unit base as template.
Drill 3/16 holes
a
b
Press anchors into holes until flush.
Y1
R
C
E/W1
H O B G
Thermostat
C
- 24VAC Common
R
- 24VAC
Y1
- 1st stage cooling
E/W1 - 1st stage heating
O
- Not used
B
- Not used
G
- Fan
H
- Humidification
TERMINAL DESIGNATIONS
C
C
H
R
Y
W
G
B
O
Note: To avoid electrical problems, use the system transformer for both
the thermostat and humidifier.
9801
i
Humidifier
Equipment Wiring
Terminals
Please refer to furnace
installation manual for
proper terminations
Remove 1/4” of insulation
from end of each wire
DELUXE
PROGRAMMABLE
THERMOSTATS
