Instruction manual

Step 2 -- Mount Unit
Unit can stand or lie on floor, or hang from ceiling or wall. Allow
space for wiring, piping, and servicing unit.
IMPORTANT: When unit is installed over a finished ceiling
and/or living area, building codes may require a field-supplied
secondary condensate pan to be installed under the entire unit.
Some localities may allow as an alternative, the running of a
separate, secondary condensate line. Consult local codes for
additional restrictions or precautions.
A. Upflow Installation
If return air is to be ducted through a floor, set unit on floor over
opening and use 1/8 to 1/4" (3 to 6 mm) thick fireproof resilient
gasket between duct, unit, and floor.
Side return is a field option on slope coil models. Cut opening per
dimensions. (See Fig. 1.) A field-supplied bottom closure is
required.
POWER ENTRY --
OPTIONS
018 O48 21' (533 ram) FRONT SERVICI
060 060 24" (610ram} CLEARANCE
UPFLOW/DOWNFLOW
o2o°L......
UPFLOW/DOWNFLOW--
SECONDARY DRAIN
UPFLOW/DOWNFLOW j
PRIMARY DRAIN
UNIT A
018 12" (305 ram)
036 19" (483 ram)
024 {?30 17" (432 ram)
i" (38 ram)
19' Oa3 m m)
A07565
Fig. 1 - Slope Coil Unit in Upflow Application
B. Downflow Installation
In this application, field conversion of the evaporator is required
using accessory downflow kit along with an accessory base kit.
Use fireproof resilient gasket, 1/8 to 1/4" (3 to 6 mm) thick.
between duct, unit, and floor.
UNIT OR 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 the conversion process, remove the plastic cap
covering the vertical drains only and discard. Remove the plug
from the overflow hole and discard. At completion of the
downflow installation, caulk around the vertical pan fitting to
door joint to retain the low air leak performance of the unit.
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" (3 to d 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.
C. Horizontal Installation
Units must not he installed with access panels facing up or down.
The FH4C003 and 004 size units equipped with accessory cooling
coils are not approved for horizontal applications. All other units
are factory built for horizontal left installation. (See Fig. 2 and 3.)
When suspending unit from ceiling, dimples in casing indicate
suitable location of screws for mounting metal support straps. (See
Fig. 2.)
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.
@R_MARY
RAiN
HANGING
STRAPS
018 048 21" {533 ram)
060 060 24" {610 rr ,r')
FnONT SERVICE
CLEARANCE
{FULL FACE
©F UNIT)
--.._
ENTRY
OPTIONS
i
175" (44ram)
F_ER ACCESS
CLEARANCE
DRA_N
SECONDARY
DRA_N
A07566
Fig. 2 - Slope Coil Unit in Horizontal Left Application
HORIZONTAL
CONNECTIONS
A00072
Fig. 3 - A-Coil in Horizontal Left Application (Factory
Ready)
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 he leveled along its length and width.
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. 4.)