Introduction - McQuay PDAA Installation & Maintenance Data

Introduction

McQuay offers the most complete line of PTAC
and PTHP products for new construction projects
and exact replacements for our original Singer,
Remington, American Air Filter and American
Standard brand equipment, and models from
other manufacturers.
McQuay 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 energy efficiencies for lower operating
costs. Plus, McQuay offers a nationwide
network for original equipment replacements
with local parts and service.
McQuay Applied Packaged Terminal Air
®
Conditioners and Heat Pumps are designed
and built for through-the-wall installation
in either new or existing buildings. 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 intermediate
electric resistance or with reverse cycle technology
(heat pump models only). 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
generates 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.
Figure 2. Exploded View of the Applied PTAC Unit
Figure 1. Model PDAA/PDHA Unit with Non-
programmable Touchpad Control (Shown
with Subbase)
Notes:
1. Unit pictured with subbase installed. Subbase is
optional on 208V 230V units Subbase is required
on all 265V and units with hydronic heat. See
pages 8 & 9 for subbase dimensions. Sides are
adjustable.
2. Opening needs to be 16
(1083mm) when using a louver frame. See page
13, Figure 13.
IM 934-2 Applied PDAA/PDHA / Page 5 of 44
" (422mm) x 42 "
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