538A
538S (048 Shown)
DESCRIPTION
These duct-free split systems cool, heat (heat pump systems only) dehumidify, circulate, and ®lter the air Ð with minimum maintenance. They are the ideal complement to your ducted system when it is impractical or prohibitively expensive to use a ducted system. The outdoor units, when matched with model 619E fan coil units, offer many technological features and reli- able operation.
The duct-free split systems are perfect for add-ons, such as an office or family room addition, and whenever you have special space requirements; like for a computer room. Or consider duct- free split systems when changes in the cooling load cannot be handled by the existing system; for instance, when adding heat- generating equipment to an already air-conditioned space.
Split systems can also be used when adding air conditioning to spaces that are heated by hydronic or electric heat, and no ductwork exists. Historical renovations are another application for which duct-free split systems are well suited, especially when preserving the looks of the original structure is essential.
When noise is a concern, these whisper-quiet split systems are your answer because you don't have to worry about duct design.
If security is an issue, outdoor and indoor units are connected only by refrigerant piping to prevent intruders from crawling
619E
538C/D009,012
through ductwork. Also, since the outdoor units can be installed 6-in. away from outside walls, coils are protected from vandals and severe weather.
In addition, the compact duct-free split systems take only a few hours to installl, without any major interruptions to the custom- ers' workplace or home.
STANDARD SYSTEM FEATURES
HIGH-EFFICIENCYdesign with SEERs (Seasonal Energy Effi- ciency Ratios) up to 12.0 and HSPFs (heating seasonal perfor- mance factors; heat pump systems only) of 6.8.
MICROPROCESSOR CONTROL for accurate control of the de- sired comfort level.
EXTENSIVE DIAGNOSTICS alert the user to the existence of problems.
BUILT-IN RELIABILITY COMPONENTS include a suction-line accumulator that safeguards the compressor against loss of lu- brication, while start capacitors and relays (non-scroll units) as- sure dependable start-ups, especially during low-voltage conditions (down to 187 v). High- and low-pressure safety switches, crankcase heater (non-scroll units), liquid line ®lter drier (538A, 538C, 538S), bi-¯ow liquid line ®lter drier (538D), and lock-out protection are also standard on most sizes.
