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6
COIL
SUPPORT
RAIL
COIL
BRACKET
DRAIN PAN
SUPPORT
BRACKET
COIL
SUPPORT
RAIL
COIL
BRACKET
HORIZONTAL
DRAIN PAN
PRIMARY DRAIN
HORIZONTAL RIGHT
SECONDARY DRAIN
HORIZONTAL RIGHT
REFRIGERANT
CONNECTIONS
AIR SEAL
ASSEMBLY
A
B
C
HORIZONTAL
RIGHT
APPLICATION
A00071
Fig. 6 - A- Coil in Horizontal- Right Application (FE4A only)
F. Downflow Installations (FE4A and FE5A)
PROPERTY DAMAGE HAZARD
Failure to follow this caution may result in product or
property damage.
The conversion of the fan coil to downflow requires special
procedures for the condensate drains on both A- coil and
Slope- units. The vertical drains have an overflow hole
between the primary and secondary drain holes. This hole is
plugged for all applications except downflow, but must be
used for downflow. During conversion process, remove
plastic cap covering vertical drains only and discard. Remove
plug from overflow hole and discard. At completion of
downflow installation, caulk around vertical pan fitting to
door joint to retain low air leak performance of the unit.
CAUTION
!
In this application, field conversion of the evaporator is required
using accessory downflow kit along with an accessory base kit.
NOTE: To convert units for downflow applications, refer to
Installation Instructions supplied with kit for proper installation.
For unit size 003, use k it Part No. KFADC0201SLP. For unit sizes
002, 004, 005, and 006, use kit Part No. KFADC0401ACL. Use
fireproof resilient gasket, 1/8- to 1/4- in. thick, between duct, unit,
and floor.
NOTE: Gasket kit number KFAHD0101SLP is also required for
all downflow applications to maintain low air leak/low sweat
performance.
G. Manufactured and Mobile Home Housing Applications
1. Fan coil unit must be secured to the structure using field-
supplied hardware.
2. Allow a minimum of 24- in. clearance from access panels.
3. Recommended method of securing for typical applications
a. If fan coil is away from wall, attach pipe strap to top of
fan coil using No. 10 self tapping screws. Angle strap
down and away from back of fan coil, remove all slack,
and fasten to wall stud of structure using 5/16- in. lag
screws. Typical both sides of fan coil.
b. If fan coil is against wall, secure fan coil to wall stud
using 1/8- in. thick right- angle brackets. Attach brackets
to fan coil using No. 10 self tapping screws and to wall
stud using 5/16- in. lag screws. (See Fig. 7.)
Procedure 3 — Air Ducts
Connect supply- air duct over outside of 3/4- in. flange provided
on supply- air opening. Secure duct to flange with proper fasteners
for type of duct used, and seal duct- to- unit joint.
Duct connection flanges are provided on unit air discharge
connection.
When using FE5A units with 20- kW or FE4A units with 20- ,
24- , and 30- kW electric heaters, maintain a 1- in. clearance from
combustible materials to discharge plenum and ductwork for a
distance of 36” / 914.4 mm from unit. Use accessory downflow
base to maintain proper clearance on downflow installations.
Use flexible connectors between ductwork and unit to prevent
transmission of vibration. When electric heater is installed, use heat
resistant material for flexible connector between ductwork and unit
at discharge connection. Ductwork passing through unconditioned
space must be insulated and covered with vapor barrier.
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