FX4D: Installation Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
2
A09382
Fig. 1 – Slope Coil Unit in Upflow Application
NOTE:
To convert units for downflow applications, refer to Installation
Instructions supplied with kit for proper installation. For slope fan coils,
use kit Part No. KFADC0201SLP. For A-coils, use kit Part No.
KFADC0401ACL. Use fireproof resilient gasket, 1/8 to 1/4-in (3 to 6
mm) 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.
NOTE:
Modular units can be disassembled and components moved
separately to installation area for reassembly. This process
accommodates small scuttle holes and limiting entrances to installation
sites. (See Fig. 2.)
HORIZONTAL INSTALLATION
Units must not be installed with access panels facing up or down. All
other units are factory built for horizontal left installation. (See Fig. 3
and 4.) When suspending unit from ceiling, dimples in casing indicate
suitable location of screws for mounting metal support straps. (See Fig.
3.)
For horizontal applications having high return static and humid return
air, the Water Management Kit, KFAHC0125AAA, may need to be used
to assist in water management.
Horizontal Right Conversion of Units with Slope Coils
NOTE:
Gasket kit number KFAHD0101SLP is required for horizontal
slope coil conversion to maintain low air leak/low sweat performance.
A95293
Fig. 2 – Modular Unit Assembly
1. Remove blower and coil access panels and fitting panel. (See Fig.
5.)
2. Remove coil mounting screw securing coil assembly to right side
casing flange.
3. Remove coil assembly.
4. Lay fan coil on its right side and reinstall coil assembly with
condensate pan down (See Fig. 5.)
5. Attach coil to casing flange using previously removed coil
mounting screw.
6. Make sure pan cap in fitting door is properly seated on fitting door
to retain low air leak rating of the unit.
7. Add gaskets from kit - KFAHD.
8. Align holes with tubing connections and condensate pan
connections. Reinstall access panels and fitting panel.
A COIL
UNITS
POWER ENTRY
OPTIONS
LOW VOLT
ENTRY
OPTIONS
FIELD MODIFIED
SIDE RETURN
LOCATION FOR
SLOPE COIL
UNITS ONLY
FIELD SUPPLIED
RETURN PLENUM
UPFLOW/DOWNFLOW
SECONDARY DRAIN
UPFLOW/DOWNFLOW
PRIMARY DRAIN
019, 025
17" (432 mm)
A
1.5" (38 mm)
2.5"
(64 mm)
19" (483 mm)
FIELD SUPPLIED
SUPPLY DUCT
UPFLOW/DOWNFLOW
SECONDARY DRAIN
UPFLOW/DOWNFLOW
PRIMARY DRAIN
031
19" (483 mm)
019 - 049 21" (533 mm) FRONT SERVICE
061 24" (610mm) CLEARANCE
UNIT
A
CAUTION
!
PRODUCT OR PROPERTY DAMAGE HAZARD
Failure to follow this warning 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-coil units. The
vertical drains have an overflow hole between the primary and
secondary drain holes. This hole is plugged for all applications except
downflow, and 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
!
PROPERTY DAMAGE HAZARD
Failure to follow this caution may result in product or property damage.
For optimum condensate drainage performance in horizontal
installations, unit should be leveled along its length and width.
2 SCREWS
2 SCREWS
REAR CORNER
BRACKET
BLOWER BOX
COIL BOX
2 SCREWS
