Instruction manual

CAUTION: To prevent property damage and achieve optimum drainage performance, BOTH primary and secondary
drain lines should be installed and include properly-sized condensate traps. (See Fig. 15.) Shallow, running traps are
inadequate and DO NOT allow proper condensate drainage. (See Fig. 16.) For horizontal installations of units with A-coils,
use plastic fittings provided. (See Fig. 17.) Make sure that the correct plastic fitting is installed in the correct location on the
horizontal drain pan. Use pipe dope. Do not over-torque. Hand-tighten plus 1-1/2 turns.
NOTE: When connecting condensate drain lines, avoid blocking filter access panel, thus preventing filter removal. After connection, prime both
primary and secondary condensate traps.
NOTE: If the unit is located in or above a living space where damage may result from condensate overflow, a field-supplied, external condensate
pan should be installed underneath the entire unit, and a secondary condensate line (with appropriate trap) should be run from the unit into the
pan. Any condensate in this external condensate pan should be drained to a noticeable place. As an alternative to using an external condensate pan,
some localities may allow the running of a separate 3/4 in. condensate line (with appropriate trap) to a place where the condensate will be
noticeable. The owner of the structure must be informed that when condensate flows from the secondary drain or external condensate pan, the unit
requires servicing else water damage will occur.
Install traps in the condensate lines as close to the coil as possible. (See Fig. 18.) Make sure that the outlet of each trap is below its connection
to the condensate pan to prevent condensate from overflowing the drain pan. Prime all traps, test for leaks, and insulate traps if located above a
living area.
Condensate drain lines should be pitched downward at a minimum slope of 1 in. for every 10 ft of length.
Consult local codes for additional restrictions or precautions.
PROCEDURE 7—ACCESSORIES
A. Electronic Air Cleaner
The Electronic Air Cleaner may be connected to the fan coil as shown in Fig. 19. This method requires a field supplied 240v/120v 40va transformer
because it uses the 230v fan coil power supply. Use factory authorized KEAVC0101240 voltage conversion kit in this application.
B. Humidifier
Connect humidifier and humidistat to the fan coil unit as shown in Fig. 20 and Fig. 21. The cooling lockout relay is optional (See Fig. 22.)
START-UP
Refer to outdoor unit Installation Instructions for system start-up instructions and refrigerant charging method details.
CAUTION: Never operate unit without a filter. Damage to blower motor or coil may result. Units are not shipped with
filters. Factory authorized filter kits must be used when locating the filter inside the unit. (See Table 1.) For those applications
where access to an internal filter is impractical, a field-supplied filter must be installed in the return duct system.
CARE AND MAINTENANCE
To continue high performance and minimize possible equipment failure, it is essential that periodic maintenance be performed on this equipment.
Consult your local dealer as to the proper frequency of maintenance and the availability of a maintenance contract.
The ability to properly perform maintenance on this equipment requires certain mechanical skills and tools. If you do not possess these, contact
your dealer for maintenance. The only consumer service recommended or required is filter replacement or cleaning on a monthly basis.
Fig. 14—Refrigerant Flow-Control Device (FC4B Has TXV and Strainer)
A94415
TEFLON SEAL
BRASS
HEX NUT
STRAINER
PISTON
RETAINER
BRASS
HEX BODY
DISTRIBUTORPISTON
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