507746-01
Issue 1821
Page 5 of 39
General Information
This indoor unit with all-aluminum coil is designed for
installation with optional field-installed electric heat and
a matched outdoor unit that is charged with HFC-410A
refrigerant. These units, designed for indoor installation
in multiple positions, are completely assembled for upflow
and horizontal right-hand discharge before being shipped
from the factory.
All BCE7S air handlers are equipped with a factory-
installed, internally mounted check / expansion valve,
which is suitable for use in HFC-410A applications.
This air handler is compatible with a non-communicating
thermostat and non-communicating outdoor units.
In addition, this unit has the enhanced capability of
communicating with the Comfort Sync
®
thermostats
and Comfort Sync
®
-enabled outdoor units using RSBus
protocols.
NOTE:
For downflow or horizontal left-hand air discharge,
certain field modifications are required.
These instructions are intended as a general guide and do
not supersede local or national codes in any way. Consult
authorities having jurisdiction before installation.
Shipping and Packing List
Package 1 of 1 contains:
1 – Assembled air handler unit
1 – Pipe nipple (Sch80, 3/4" I.D. x 5")
1 – Downflow shields and foam tapes (required for
downflow configuration only)
1 – Warranty card
Check the air handler for shipping damage; if found,
immediately contact the last carrier.
Installation Clearances
Cabinet
0 inch (0 mm)
To Plenum
0 inch (0 mm)
To Outlet Duct within 3 feet (914 mm)
0 inch (0 mm)
Floor
See Note #1
Service / Maintenance
See Note #2
1
Units installed on combustible floors in the downflow position with
electric heat require optional downflow additive base.
2
Front service access – 24 inches (610 mm) minimum.
NOTE
-
If cabinet depth is more than 24 inches (610 mm), allow a
minimum of the cabinet depth plus 2 inches (51 mm).
Table 1.
Installation Clearances
This unit must be matched with an indoor coil as
specified in the AHRI Database. Coils previously
charged with HCFC-22 must be flushed.
IMPORTANT
During blower operation, the ECM motor emits
energy that may interfere with pacemaker operation.
Interference is reduced by both the sheet metal cabinet
and distance.
WARNING
Improper installation of the air handler can result in
personal injury or death.
Do not allow external combustion products or other
contaminants to enter the return air system or to be
mixed with air that will be supplied to the living space.
Use sheet metal screws and joint tape or duct mastic
to seal return air system to air handler. In platform
installations, the air handler should be sealed airtight
to the return air plenum. A door must never be used as
a portion of the return air duct system. The base must
provide a stable support and an airtight seal to the air
handler. Allow absolutely no sagging, cracks, gaps, etc.
For no reason should return and supply air duct systems
ever be connected to or from other heating devices
such as a fireplace or stove, etc. Fire, explosion, carbon
monoxide poisoning, personal injury and/or property
damage could result.
WARNING
Requirements
In addition to conforming to manufacturer’s installation
instructions and local municipal building codes, installation
of air handler units (with or without optional electric heat),
shall conform with the following National Fire Protection
Association (NFPA) standards:
• NFPA No. 90A - Standard for Installation of Air
Conditioning and Ventilation Systems
• NFPA No. 90B - Standard for Installation of Residence
Type Warm Air Heating and Air Conditioning Systems
This unit is approved for installation clearance to
combustible material as stated on the unit rating plate.
Accessibility and service clearances must take precedence
over combustible material clearances.
