3
NOTE: When a remote space temperature sensor or out-
door-air sensor is used, an additional conductor should be
provided for grounding of the shield.
8. Level the back half of the thermostat against the wall
and mark the wall through the 2 mounting holes.
9. If needed, drill two
3
/
16
-in. mounting holes in the wall
where marked. Otherwise, use the previous thermo-
stat’s mounting holes already drilled.
10. Secure the back half of the thermostat to the wall with
2 screws and anchors provided. Ensure all wires exit
through the large hole.
11. Adjust wire length and routing to allow proper closure
of the thermostat. Strip each wire at the end no more
than
1
/
4
-in. to prevent adjacent wires from shorting
together. Match and connect wires to terminals on the
thermostat. Refer to Table 1 for correct model usage
depending on intended application. Table 1 references
Fig. 2-24 for proper wiring depending on model no.
and intended application.
12. Push excess wiring into the wall. Seal the hole in the
wall to prevent drafts.
13. Snap the front and rear halves of the thermostat back
together and snap the thermostat door back onto the
front.
14. Turn on power to the unit. The thermostat will receive
power from the unit. The thermostat will be powered
by 24 v, nominal (18 to 30 vac) through terminal R
(+24 v) and terminal C (common). Power consumption
is 5 va at 24 vac.
15. On power up, the thermostat display shows the
selected setup mode for a few seconds, depending on
DIP switch settings:
AC — 1-speed air conditioner
HP — 1-speed heat pump
A2 — 2-speed air conditioner
H2 — 2-speed heat pump
HS — Intelligent heat staging with a variable-speed
fan coil and 1-speed heat pump
Table 1 — Model No. and Proper Wiring for Intended Applications
LEGEND
Terminals S2 and C are internally connected. Do not
ground shield to terminal C of thermostat.
Be careful not to drill into wiring in the wall. Electrical
shock could result.
Improper wiring or installation may cause damage to the
thermostat. Check to ensure wiring is correct before pro-
ceeding with installation of unit.
MODEL NO.
APPLICATION
FIG. NO.
1100
Single-Speed AC with Single-Stage Furnace
2
Single-Speed AC with 2-Stage or Variable-Speed Furnace
3
Single-Speed AC with Typical Fan Coil (Single-Stage Heat Control)
4
Single-Speed AC with Variable-Speed Fan Coil
5
Single-Speed Packaged AC with Single-Stage Gas Furnace
6
Single-Speed Packaged AC with Single-Stage Electric Heat
7
1200
Single-Speed AC with 2-Stage or Variable-Speed Furnace
8
Single-Speed AC with Typical Fan Coil (Dual-Stage Heat Control)
9
Single-Speed HP with Typical Fan Coil
10
Single-Speed AC with Variable-Speed Fan Coil
11
Single-Speed Packaged AC with 2-Stage Electric Heat
12
Single-Speed Packaged HP with Single-Stage Electric Heat
13
Single-Speed Packaged Heat Pump with 2-Stage Electric Heat
14
Single-Speed Packaged HP with Single-Stage Gas Furnace
15
1300
2-Speed AC with Single-Stage Furnace
16
2-Speed AC with 2-Stage or Variable Speed Furnace
17
2-Speed AC with Typical Fan Coil
18
2-Speed HP with Single-Stage Furnace
19
2-speed HP with 2-Stage or Variable-Speed Furnace
20
2-Speed HP with Typical Fan Coil
21
2-Speed AC with Variable-Speed Fan Coil
22
2-Speed HP with Variable-Speed Fan Coil
23
Single-Speed HP with Variable-Speed Fan Coil and Special 3-Stage Electric Heat
24
AC
—
Air Conditioner
HP
—
Heat Pump