INTRODUCTION
Model 40FKA Fan Coil units are designed for flexibility and can
be used for upflow, horizontal, or downflow applications. A
Carrier Thermidistat™ Control (TSTATCCPRH01-B) is included
with the 40FKA unit. See Back Page for QUICK REFERENCE
COMFORT HEAT SET-UP INSTRUCTIONS.
These units are available for application in systems of 18,000
through 60,000 Btuh nominal cooling capacities. Factory-
authorized, field-installed electric heater packages are available in
5 through 30 kw. See Product Data for available accessory kits.
Before installing or servicing fan coil, always turn off all
power to unit. There may be more than 1 disconnect switch.
Turn off accessory heater power if applicable. Electrical
shock can cause personal injury or death.
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 Fan Coil
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 alterative the running of a
separate, secondary condensate line. Consult local codes for
additional restrictions or precautions.
When installing any fan coil over a finished ceiling and/or living
area, installation of a secondary drain pan under entire unit to
avoid damage to ceiling is recommended.
40FKA Fan Coils can be installed for upflow and horizontal-left
applications as factory shipped. (See Figs. 2, 4, and 7.) Units can
be installed for horizontal-right applications with field modifica-
tions. Units may be converted for downflow applications using
factory-authorized accessory kit.
NOTE: To ensure proper drainage for horizontal installations,
unit must be installed so it is within 1/8 in. level of the length and
width of unit.
UPFLOW INSTALLATION
If return air is to be ducted, install duct flush with floor. Set unit
on floor over opening.
Only use return-air opening provided. All return air must pass
through the coil. (See Fig. 2.)
MODULAR UNITS
The 40FKA Fan Coil in size 006 is a 2-piece modular unit.
Modular construction allows installer to disassemble unit into 2
components, coil box and blower box, for ease of installation. (See
Fig. 3.)
To disassemble unit, remove rear corner brackets by removing 2
screws which secure brackets. (See Fig. 3.) Remove either 2
screws in each front corner of coil box, or 2 screws in blower box.
Do not remove all 4 screws in each corner. (See Fig. 3.) Sections
may now be separated by lifting top section from lower section.
To reassemble, reverse above procedure. Be certain to reinstall all
fasteners when reassembling.
HORIZONTAL INSTALLATIONS
Be sure installation complies with all applicable building codes
that may require installation of a secondary condensate pan.
1. Arrange support for unit by setting it in or above secondary
condensate pan.
2. When suspending unit from ceiling, dimples in casing indicate
proper location of screws for mounting metal support straps.
(See Fig. 4.)
HORIZONTAL-RIGHT CONVERSION OF UNITS WITH
SLOPE COILS
NOTE: The TXV sensing bulb must be insulated on slope coils in
horizontal right and downflow applications. Failure to insulate
bulb will result in performance loss.
To convert units for horizontal right installations:
1. Remove blower and coil access panels and fitting panel. (See
Fig. 5.)
2. Remove screw securing coil assembly to right side casing
flange.
3. Remove coil assembly.
4. Insulate TXV sensing bulb with cork tape or other permanent
insulating material. (See Fig. 5.)
5. Lay fan coil on its right side and reinstall coil assembly with
condensate pan down. (See Fig. 5.)
6. Attach coil to casing flange using previously removed coil
mounting screw.
7. Reinstall access panels and fitting panel, aligning holes with
tubing connections and condensate pan connections.
Make sure liquid and suction tube grommets are in place to prevent
air leaks and cabinet sweating. Install grommets after brazing.
HORIZONTAL RIGHT CONVERSION OF UNITS WITH
A-COIL
To convert units for horizontal right installations:
1. Remove blower and coil access panels. (See Fig. 6.)
2. Remove metal clip securing fitting panel to condensate pan.
Remove fitting panel.
3. Remove 2 snap-in clips securing A-coil in unit.
4. Slide coil and pan assembly out of unit.
5. Remove horizontal drain pan support bracket from coil
support rail on left side of unit and reinstall on coil support rail
on right side of unit.
6. Convert air-seal assembly for horizontal right.
a. Remove air-seal assembly from coil by removing 4 screws.
(See Fig. 6.)
b. Remove air splitter (B) from coil seal assembly by remov-
ing 3 screws. (See Fig. 6—factory-shipped inset.)
c. Remove filler plate (A) and install air splitter (B) in place
of filler plate.
d. Install filler plate (A) as shown in horizontal right appli-
cation.
e. Remove condensate troughs (C) and install on opposite
tube sheets.
f. Install hose onto plastic spout.
7. Install horizontal pan on right side of coil assembly.
8. Slide coil assembly into casing. Be sure coil bracket on each
corner of vertical pan engages coil support rails.
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