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injury or death. CAUTION is used to identify unsafe practices which would result in minor personal injury or product and property damage. NOTE
is used to highlight suggestions which will result in enhanced installation, reliability, or operation.
WARNING: Before installing or servicing unit, 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.
Model FV4B Fan Coil units are designed for flexibility and can be used for upflow, horizontal, or downflow (kits required and manufactured and
mobile home) applications. These units are designed specifically for Puron (R-410A) and must be used only with Puron air conditioners and heat
pumps as shipped.
These units are designed to meet the low air leak requirements currently in effect. Because of this, the units need special attention in the condensate
pan and drain connection area and when brazing tubing.
These units are available for application in systems of 24,000 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.
PROCEDURE 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.
PROCEDURE 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 the alterative of running 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.
FV4B Fan Coils can be installed for upflow and horizontal-left applications as factory shipped. (See Fig. 2, 4 and 8.) Units can be installed for
horizontal-right applications with field modifications. Units may be converted for downflow applications using factory-authorized accessory kits.
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.
A. 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.)
B. Modular Units
The FV4B 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.
C. 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.)
D. 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.
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. 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 the pan cap in the fitting door is properly seated on the fitting door to retain the low air leak rating of the unit.
7. Add gaskets from kit KFAHD per kit instructions.
8. 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.
INTRODUCTION
INSTALLATION
—2—
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