Wi-Fi Setup; Installation; Thermostat Installation Location Recommendations; Thermostat Mounting - Aprilaire Home Comfort Control 8910W Safety & Installation Instructions

WI-FI seTup

For detailed instructions for connecting the Home Comfort Control
Aprilaire account, refer to the Wi-Fi Quick Start Guide included in the box.

InsTallaTIon

THeRMosTaT InsTallaTIon loCaTIon ReCoMMenDaTIons

Thermostat should be mounted: Do not mount thermostat:
• O n an interior wall, in a frequently • B ehind doors, in corners or other dead air spaces.
occupied space .
• I n direct sunlight, near lighting fixtures, or other appliances that
• A pproximately 5' above floor.
• A t least 18" from outside wall. • O n an outside or unconditioned area wall.
• T hermostat can be mounted to a • I n the flow of a supply register, in stairwells, or near outside doors.
vertical junction box.
• O n a wall with concealed pipes or ductwork.

THeRMosTaT MounTInG

1 . Remove the rear mounting plate from the thermostat .
2 . Pull wires through the opening on the rear mounting plate .
3 . Position and level the mounting plate of the thermostat on wall and
mark the hole locations with a pencil .
4. D rill 1/4" holes and insert supplied anchors (drywall only).
5. P lace mounting plate over anchors, insert and tighten screws.
6 . Seal wire entry holes to prevent drafts affecting temperature readings .
eQuIpMenT ConTRol MoDule InsTallaTIon loCaTIon ReCoMMenDaTIons
note: Installer must touch a grounded metal object before handling the Equipment Control Module to avoid potential
damage due to electrical discharge .
equipment control module should be mounted:
• I n a location where the temperature will not exceed
158°F (70°C) or drop below 32°F (0°C) .

eQuIpMenT ConTRol MoDule MounTInG

The Equipment Control Module has the following features to simplify mounting and wiring and provide for a clean
and neat installation .
• S ix (6) mounting holes. One on each corner and two centered top and bottom. Any combination of these holes may
be utilized . Mount the Equipment Control Module using 2 to 4 #8 screws appropriate for the mounting surface
substrate . (See Figure 2 .)
• W ires can be routed through
the top, bottom, sides or back.
• N ylon wire ties can be used
to secure wires in 10 places .
Installation steps
1 . Select mounting location .
2 . Pull from bottom to remove
front cover . (See Figure 1 .)
3 . Mount base using 2 to 4 #8
screws (field supplied) .
2
™ to a Wi-Fi network and registering it to an
give off heat .
Do not mount equipment control module:
• O n foundation walls or on the HVAC equipment or
ductwork . These locations can cause moisture to
condense on the equipment control module .
Figure 1 Figure 2
InsTallaTIon

THeRMosTaT WIRInG

Wire specifications:
18-24 gauge thermostat wire
Installation notes:
• E nsure power at the HVAC equipment is off.
• L oosen screw terminals, insert stripped wire
and re-tighten .
• P ush the excess wire back into the opening and plug the wall opening to prevent drafts.
1 – Connection to terminal 1 at equipment control module
2 – Connection to terminal 2 at equipment control module
3 – Connection to terminal 3 at equipment control module
T1 & T2 – Remote temperature sensor (optional)

ReMoTe TeMpeRaTuRe sensoR (opTIonal)

A remote temperature sensor can be used for control if the thermostat is to be mounted in a concealed location
or a remote sensor can be averaged with the thermostat sensor to control a large space . An 8051 flush mount
or 8053 surface mount remote temperature sensor can be attached to the T1 and T2 terminals and mounted in a
recommended area. The remote sensor must be enabled in the installer set-up menu, and once enabled will override
or be averaged with the thermostat's internal temperature sensor, based on the setting.
Remote temperature sensor should be
mounted:
• O n an interior wall, in a frequently occupied
space .
• A pproximately 5' above floor.
• A t least 18" from outside wall.
• U sing less than 300' of wire.
Do not mount remote sensor:
• B ehind doors, in corners or other dead air
spaces .
• I n direct sunlight, near lighting fixtures, or
other appliances that give off heat .
• O n an outside or unconditioned area wall.
• I n the flow of a supply register, in stairwells,
or near outside doors .
• O n a wall with concealed pipes or ductwork.
• N ear 120 VAC lines.
1 2 3 T1 T2
1 2 3 T1 T2
3