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IM 938-4 / Page 5 of 42
Introduction
Daikin offers the most complete line of PTAC and PTHP
products for new construction projects and exact replace
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ments for our original Singer, Remington, American Air
Filter and American Standard brand equipment, and models
from other manufacturers.
Daikin products feature our proven institutional grade design
and construction that allows you to benefit from the long
life, reliability, and low sound levels, along with higher ener
-
gy efficiencies for lower operating costs. Plus, Daikin offers
a nationwide network for original equipment replacements
with local parts and service.
Daikin Applied Packaged Terminal Air Conditioners and
Heat Pumps are designed and built for through-the-wall
installation in either new or existing buildings.
Figure 1: Exploded View of the 16" x 42" PDAN with Top-Mounted Hydronic Unit
Removable Front Panel
Premium Digital Touchpad Control
16" x 42" Wall Sleeve
Louver (Architectural)
Top-Mount Hydronic Heat Section
Cooling Chassis
Room Cabinet
The self-contained refrigerant system delivers cooling to the
desired space. Heating can be accomplished with electric
resistance with hydronic (water or steam), hydronic with in
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termediate electric resistance or with reverse cycle technol
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ogy (heat pump models only) as a special order. Generally,
an estimate for capacity selection is 35 BTUH per square
foot of floor space (cooling) and 4 BTUH (1.25 watts) per
cubic foot (heating). The architect or engineer must verify
the selection. Note that the heat pump reverse cycle gener
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ates approximately 10 BTUs per electrical watt as compared
to 3.4 BTUs per watt with resistance electric heat. The unit
will restart at its last setting after a power interruption.