Specifications

Page 6 of 76 SmartSource 2-Stage Water Source Heat Pumps Catalog 1114-1
Very quiet
SmartSource water source
heat pumps are exceptionally
quiet, with published sound
ratings as low as 46 dBA.
Sound reduction packages
are available for even greater
attenuation. These units typi-
cally operate at low compressor and fan speeds a majority
of the time. The result is even quieter operation, very low
energy consumption and very uniform room air
temperatures.
ECM motors are standard on all units, with eld-selectable
CFM settings. ECM motors are more efcient than tradi-
tional PSC motors, which is why most utilities offer rebates
for their use. ECM motors also provide near-constant fan
speeds at static pressures up to one inch. The result is
improved air ltration capabilities and more uniform air
distribution.
Durable construction
Cabinets on all units feature a rugged, texturized, powder-
coat paint nish for exceptional durability. Slotted handles
make it easy to remove panels for maintenance and service.
Cleanable, foil-faced berglass insulation is standard in the
air-handling section to minimize sound transmission while
preventing bers in the air stream. High-IAQ options in-
clude 3/8-inch, closed-cell insulation in both the compres-
sor and air-handling sections.
Wide range of options
Available options on all units
include auxiliary electric heat
in both internal (vertical units
only) and external congura-
tions. MERV 8 and 13 lters are
available, with standard 2 inch
lter rack or an optional 4 inch
lter rack that accept a two-inch
or four-inch cartridges. A desu-
perheater option takes advantage of waste heat from the
compressor to provide domestic hot water, ideal for apart-
ments and condos. Also available is a waterside economizer
to minimize mechanical cooling by using cool loop water
to condition the space.
Several methods of dehumidication options are available,
including hot gas reheat. For geothermal applications, a
unit-mounted loop pump option reduces system complexity
by eliminating the need for a central pumping system.
Typical applications for SmartSource water source heat
pumps include schools, clinics, ofce buildings, govern-
ment ofces, senior living facilities and other projects, both
new construction and retrot, where high efciency is a key
specication.
Industry Leading Efciences, Very Quiet
Operation
SmartSource™ water source heat pumps
from Daikin McQuay combine industry-
leading efciencies with low-noise
operation, high indoor air quality and
consistent air temperatures. So now you
can do your part to conserve energy and
enjoy a quiet and comfortable indoor
environment.
Why part load efciency matters most
SmartSource water source heat pumps are available in both
vertical and horizontal congurations and in sizes from 2 to
6 tons. Part load EERs range from 26.1 to 29.8 for geother-
mal applications, making these units one of the most ef-
cient available to heat and cool a commercial space. They
are ideal to assist with LEED certication and for earning
energy rebates and tax deductions.
* Consult your utility provider for rebate opportunities.
In most environments, heating and cooling systems oper-
ate at part load most of the time (see chart below). That’s
where SmartSource units with 2-stage compressors really
shine. Here’s how:
• Quieter– Units operate at lower fan speeds and
compressor settings under part load. That signicantly
reduces noise.
• Morecomfortable– At lower fan speeds, more heat
and humidity is removed as air passes through the
unit. That means the air entering the room is more
comfortable.
• Moreconsistentcomfort– At part load, 2-stage
compressors run more often, delivering a more consistent
room air temperature.
• Moreenergysavings– At lower speeds, units use less
energy, so you save on utility costs.
• Loweroperatingcosts– When motors and compressors
cycle on and off less, they last longer. That means fewer
repairs and longer part life.
Sample building load profile, St. Louis, MO
Introduction
SmartSource™ 2-Stage Horizontal & Vertical Water Source Heat Pumps