Technical Guide

718444-YTG-E-0613
Johnson Controls Unitary Products 3
Nomenclature
Cooling/Gas Unit
Features and Benefits
Standard Features
• Operating Efficiency - DNZ model gas units provide a
minimum AFUE of 80% and SEERS of 13.0. DNQ Model
gas units provide a minimum AFUE of 80% and 14 SEER
/ 12 EERs. DNY gas units provide a minimum AFUE of
80% and 14 SEER efficiency. DNX model gas units
provide a minimum AFUE of 80% and SEERS of 15.0 to
16.5. All efficiencies exceed legislated minimum levels.
• On Site Flexibility - All model sizes share a common,
compact design cabinet in a single footprint. The installer
has the flexibility of setting one curb and placing the
proper tonnage unit on that curb after the internal load has
been determined. Field convertible duct connections from
side shot to down shot allows the installer to have greater
flexibility with less inventory.
• Lower Installation Cost - Installation time and costs are
reduced by easy power and control wiring connections.
The small base dimension means less space is required
on the ground or roof, plus, the installer can fit this unit
between the wheel wells of full size pick-up truck.
All units are completely wired, charged with R-410A and
tested prior to shipment. Unique test stations using a new
state of the art computerized process system are used to
insure product quality. Refrigerant charge and component
part numbers are verified via computers at assembly. Vital
run test statistics such as system pressure, motor
currents, air velocity and temperature, unit vibration, and
gas system safeties are monitored and recorded by the
system to insure unit performance.
Equal size, side supply and return duct connections
allows easy hook-up of ducts to match low crawl spaces
without transition pieces.
• Utility Connections Made Easy - Gas and electric utility
knockouts are provided through the bottom as well as the
side of the unit. Utility connections can be made quickly and
with a minimum amount of field labor. A field supplied and
field installed electrical disconnect switch must be installed.
• Convertible Airflow Design - The bottom duct openings
are covered when they leave the factory ready to be used
for a side supply/side return application. If a bottom
supply/bottom return application is desired, you simply
remove the two panels from the bottom of the unit and
place them in the side supply/side return duct openings.
No panel cutting is required and no accessory panel is
necessary. Convertible airflow design allows maximum
field flexibility and minimum inventory.
• Condensate Pan - A non-corrosive, long-lasting, water-
tight pan is positioned below the evaporator coil to collect
and drain all condensate. Less collection of stagnate
condensate will build-up. The condensate pan conforms
to ASHRAE 62-89 standards (Ventilation for Acceptable
Indoor Air Quality).
• Condensate Drain - The 3/4 inch NPTF connection is
rigidly mounted to assure proper fit and leak tight seal.
• Durable Finish - The cabinet is made of pre-painted
steel. The pre-treated galvanized steel provides a better
paint to steel bond, which resists corrosion and rust creep.
Special primer formulas and matted-textured finish insure
less fading when exposed to sunlight.
• Full Perimeter Base Rails - The easily removable base
rails provide a solid foundation for the entire unit and
protects the unit during shipment. The rails provide fork lift
access from all sides, and rigging holes are also provided
so that an overhead crane can be used to place the units
on a roof. On applications where the unit is placed on a
pad, the base will keep the unit off the pad to deter
corrosion. On applications where height is limited, the inch
high base rails may be removed on location.
• More Attractive Appearance - A single piece Water
Shed top cover containing a top discharge condenser fan
arrangement requires less square footage on installation
and provides a wider variety of installations. The one
piece design adds greater water integrity. Rounded
D 6 036 036 06
N
NZ
Product Category
D = Single Package Air Conditioner
Product Generation
6 = 6th Generation
Factory Installed Gas Heat
N = Single Stage
D = Two Stage (Single Phase Only)
Product Identifier
NZ = R-410A 13 SEER
Gas Heat/Electric
Nominal Gas Heating Output Capacity
(Nominal Low Gas Heat Output Capacity)
036 = 36,000 BTUH
056 = 56,000 BTUH (36,400 BTUH)
065 = 65,000 BTUH
072 = 72,000 BTUH (46,800 BTUH)
090 = 90,000 BTUH (56,160 BTUH)
110 = 110,000 BTUH (70,200 BTUH)
Voltage Code
06 = 208/230-1-60
25 = 208/230-3-60
46 = 460-3-60
024 = 24,000 BTUH
030 = 30,000 BTUH
036 = 36,000 BTUH
042 = 42,000 BTUH
048 = 48,000 BTUH
060 = 60,000 BTUH
Nominal Cooling Capacity (MBH)
NQ = R-410A 14 SEER, 12 EER
NY = R-410A 14 SEER
NX = R-410A 15 SEER