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a. Remove hinged cover by snapping apart its hinge.

b. Separate the main body from the mounting plate by

snapping its hinge apart.

c. Mount base before wiring and attaching remaining parts.

2. Route User Interface wires through large hole in mounting

base. Level mounting base against wall and mark wall
through 2 mounting holes. Any thermostat cable of 4 or
more conductors may be used. Shielded cable is not needed.

3. Drill two 3/16-in. holes in wall where marked.

4. Secure mounting base to wall with 2 screws and anchors

provided, making sure all wires extend through hole in
mounting base.

5. Adjust length and routing of each wire to reach proper

terminal and connector block on mounting base with 1/4 in.
of extra wire. Strip only 1/4 in. of insulation from each wire
to prevent adjacent wires from shorting together when
connected.

6. Match and connect 4 wires to proper terminals of the

connector blocks. Recommended connection is RED to V+,
WHITE to VG, BLUE or YELLOW to RS+, and GREEN
to RS-.

CAUTION:

Improper wiring or installation may damage

the User Interface. Check to make sure wiring is correct
before proceeding with installation or turning on unit.

7. Push any excess wire into wall and against mounting base.

Seal hole in wall to prevent air leaks. Leaks can affect
operation.

8. Snap hinge back together.

9. Close User Interface assembly making sure pins on back of

circuit board align with sockets in connector.

Install Remote Sensors

1. Separate the sensor and mounting back plate (with provided

screws and anchors). Squeeze the top and bottom of the
cover together firmly by grasping the raised top and bottom
ridges. This will release the cover.

2. Pull a 2-conductor wire through hole on right-hand side.

3. Recommended connection is BLACK to either terminal,

WHITE to remaining terminal. Stranded or common bell
wire may be used. Lengths up to 1000 ft will contribute no
noticeable error.

4. Align sensor case with base plate then press firmly until

cover snaps into place.

For installation of other sensor types, refer to Installation Instruc-
tions provided for them.

IV.

INSTALL ZONE DAMPERS

Proper selection and sizing of dampers is very important for proper
system operation. Be sure to consult the System Design Manual for
assistance in making these selections. Selection and sizing infor-
mation is not provided in this installation instruction.

If conditions exist for possible condensation, do not mount the
actuator beneath the duct.

If duct work requires multiple dampers for a single zone, up to 3
dampers may be wired in parallel. A multi-damper enabler is not
needed.

For retrofit applications, older type dampers with their original
actuators may be used under the following conditions:

1. A single damper may be connected directly to a Zone

Perfect Plus output.

2. If multiple dampers are needed for a single zone, a

multi-damper enabler must be used.

Older type dampers having an extended shaft and driven by a
crank arm may be fitted with the new DAMPACT actuators for
quieter operation. Mounting is straightforward. Be sure to use 45°
actuators (part No. DAMPACT45DEG) with round dampers and
90° actuators (part No. DAMPACT90DEG) with rectangular
dampers. When new actuators are fitted to older dampers, multi
damper enablers are not needed and up to 3 actuators can be
connected in parallel to a single Zone Perfect Plus output.

Zone dampers may be installed in any position.

Install dampers so that actuator is visible for inspection and
accessible in the event it would ever need to be serviced. The black
mark on the end of damper shaft represents position of damper
blade.

NOTE:

Insulate damper using 1-1/2 in. insulation (check local

codes). In areas where excessive condensing may occur, carefully
insulate over the actuator assembly. Make sure insulation does not
interfere with operation of actuator.

Before insulating over the actuator, check for proper damper
operation. This will be done as part of the installer set up or may
be done by applying 24vac between COM and OPN to open
damper and between COM and CLS to close damper. (See Fig. 1.)
The damper will modulate counter-clockwise to open and clock-
wise to close (viewed from the actuator end).

If in an emergency it becomes necessary to force a damper open,
manually press in the red quick blade release button with one hand
and turn mounting hub to reposition damper shaft. Release button
to hold damper shaft in new position.

Round Metal Duct Work

1. Crimp end of branch duct.

2. Slip end of zone damper over end of duct work. Use

self-tapping sheet metal screw to secure. (See Fig. 2.)

3. Properly seal joint using duct tape, mastic, or other ap-

proved method. Do not allow mastic to come in contact
with actuator.

4. Insulate damper using 1-1/2 in. to 2-in. insulation. (Check

your local codes.)

NOTE:

All zone dampers and duct work must be properly

supported according to local codes or SMACNA standards.

Fig. 1—Damper 24-vac Connections