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W8735D TELEPHONE ACCESS MODULE
W8735D Base Installation
Mount the W8735D in the equipment room near the indoor
HVAC equipment. Position the W8735D horizontally so that all
wiring connections face toward the floor or vertically so that
the power and telephone plugs face the floor. See Fig. 3.
IMPORTANT
Turn OFF all power to heating and cooling equip-
ment.
1. Position the W8735D on the wall outside of the indoor
HVAC equipment. Level the module for appearances
only; the module functions properly even when not
level.
2. Use a pencil to mark the mounting holes to be used.
The W8735D has two external mounting holes and two
external flanges to accommodate a vertical or horizontal
installation position. See Fig. 3.
3. Use a minimum of one hole and one flange to mount the
W8735D.
4. Remove the W8735D from the wall and drill a minimum
of two 3/16-in. holes in the wall (if drywall) as marked.
For firmer material such as plaster, drill a minimum of
two 7/32-in. holes. When mounting on the indoor HVAC
equipment, drill pilot holes where marked.
5. When mounting on the wall, gently tap anchors (pro-
vided) into the drilled holes until flush with the wall.
6. Position the W8735D over the drilled holes. Insert the
mounting screws (provided) in the holes and tighten.
7. A Honeywell label is provided in a bag with the
W8735D. Remove the adhesive backing from the label
and place it on the unit in its proper orientation as
shown in Fig. 3.
10
(254)
2
(51)
Fig. 2. W8735D Dimensions in inches (mm).
69-2027—01
Telephone Access
Module
EnviraCOM™
Enabled
5 (127)
12V DC
M23748
VERTICAL MOUNTING (PORTS FACING LEFT)
MOUNTING
FLANGE (x2)
HORIZONTAL MOUNTING (PORTS FACING DOWN)
Fig. 3. W8735D Mounting Orientations.
Wiring
CAUTION
Voltage Hazard.
Can cause electrical shock or equipment damage
Disconnect power before beginning installation.
IMPORTANT
All wiring must comply with local electrical codes and
ordinances.
IMPORTANT
Use 18 to 20 gauge color-coded cable for proper wir-
ing. Shielded cable is typically not required.
Keep this wiring at least one foot away from large
inductive loads such as electronic air cleaners,
motors, line starters, lighting ballasts, and large dis-
tribution panels. Failure to follow these wiring prac-
tices may introduce electrical interference (noise)
which can cause erratic system operation. All
unused thermostat wire is to be grounded at control-
ler end only. The communication cable must not
exceed 1,000 feet (305 M).
4
MOUNTING
HOLE (x2)
M23747
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