Heater Packages; Installation; Check Equipment; Mount Unit - Carrier fb4cnf024 Installation Instructions Manual

HEATER PACKAGES
This unit may or may not be equipped with an electric heater
package. For units not equipped with factory-installed heat, a
factory-approved, field-installed, UL listed heater package is
available from your equipment supplier. See unit rating plate for a
list of factory-approved heaters. Heaters that are not factory
approved could cause damage which would not be covered under
the equipment warranty. If fan coil contains a factory-installed
heater package, minimum circuit ampacity (MCA) and maximum
fuse/breaker may be different than units with a same size
field-installed accessory heater. The differences is not an error and
is due to calculation difference per UL guidelines.
INSTALLATION
Step 1 -- Check Equipment
Unpack unit and move to final location. Remove carton taking care
not to damage unit. Inspect equipment for damage prior to
installation. File claim with shipping company if shipment is
damaged or incomplete.
Locate unit rating plate which contains proper installation
information. Check rating plate to be sure unit matches job
specifications.
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 l/4-in (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.
018 048 21" (533 n'lm) FRONT SERVICE
060 060 24" (610ram) CLEARANCE
o 1'1 12"(3O%m,
024 030 17" 432mm) [
036 19" (483 mm)
A07565
Fig. 1 - Slope Coil []nit in Upllow 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 l/4-in (3 to 6 mm) thick,
between duct, unit, and floor.
[]NIT 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 l/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.
C. Horizontal Installation
[]nits must not be installed with access panels facing up or down.
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.)
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.
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.
@RIMARY
RAIN
HANGING
STRAPS
LOW voFr
ENTRY
OPTIONS
o#
SECONDARY
DRAIN
018-048 21" (533 turn)
060 060 24" (610 ram)
FRONT SERVICE
CLEARANCE
:ULL FACE
OF UNIT)
175"(44 mm)
FILIERACCESS
CLEARANCE
A07566
Fig. 2 - Slope (;oil []nit in Horizontal Left Application