2
COMPONENT LOCATION AND WIRING
CONSIDERATIONS
Locating Carrier 3--Zone System
All wiring is connected back to the Carrier 3--Zone System. Select
a location near the furnace or fan coil where wiring from each
thermostat, each damper actuator, and the equipment itself can
come together easily.
The Carrier 3--Zone System is approved for indoor use only and
should never be installed with any of its components exposed to
the elements. It may be installed in any area where the temperature
remains between 32
_
and 158
_
F, and there is no condensation. The
cover must be installed to prevent damage from other sources. Do
not locate where it will be accessible to children. Remember that
wiring access is likely the most important consideration.
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury
or death.
Turn off unit before routing control wiring or any service
operation. Remember, there may be more than one power
supply to unit.
WARNING
!
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage.
To prevent possible damage to Carrier 3--Zone System, do
not mount control on plenum, duct work, or flush against
furnace.
CAUTION
!
WIRING CONSIDERATIONS
S
All wiring in the Carrier 3--Zone system may be unshielded
S
Ordinary thermostat wire is ideal
S
Use 22 gage or larger for normal wiring
S
Lengths over 100 ft should use 20 gage or larger wire
S
Each damper actuator required 3 conductors
S
The connection to thermostat and equipment (furnace or fan
coil) could require as many as 8 conductors for a multi--state
installation
S
The
Leaving Air Temperature (LAT)
and
Heat Pump
Temperature (HPT)--
(used with heat pumps only) sensors
require 2 conductors each
S
Cables with excess conductors are acceptable
Step 1 — Mounting the Carrier 3--Zone System
The Carrier 3--Zone System can be mounted in either vertical or
horizontal position near the HVAC system inside the home. It is
designed so that wires can enter it from behind, above, or below.
Plan wire routing before mounting.
Fig. 2 -- Mounting the System
1. Remove the front cover from the base and use the base as a
template to mark drilling locations on the wall, stud , or roof
truss.
2. Mount using 4 screws (and wall anchors) provided. (See
Fig. 2.)
3. Level for appearance and tighten screws.
Step 2 — Install Thermostats in each desired Zone
Location
1. Install each thermostat according to the manufacturer’s in-
structions in their designated Zone location.
2. Connect the thermostats wires to their respective Zone des-
ignation on the right side of the the 3--Zone Panels. (See
Fig. 3).
Step 3 — Install Zone Dampers
Each damper has 3 connections:
Close (CLS), Open (OPN),
and
Common (COM).
Find the connection points along the lower left
side of the 3--Zone Control. Suggested colors are CLS = RED;
OPN = GREEN, COM = WHITE. Field label and make the
connections at the dampers and at the 3--Zone Control. Be careful
not to cross zone numbers.
If duct work required multiple dampers for a single zone, up to 5
dampers may be wired in
parallel
and may be installed in any
position.
