5
PRODUCT IDENTIFICATION
NOMENCLATURE
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Stainless-Steel Heat Exchanger (Gas only units): A
tubular heat exchanger made of 409-type stainless steel
is installed in the unit.
•
Economizers (Downflow): Based on air conditions, can
provide outisde air to cool the space.
•
Electric Heat Kits (heat pump and cooling units only):
Available in all voltage options.
•
Non-powered Concenience Outlet: A 120V, 15A, GFCI
outlet makes it easier for technicians to service the unit
once an electrician runs power to the outlet.
•
Powered Concenience Outlet: A 120V, 15A, GFCI outlet
powered with a transformer built into the unit. When
a factory-installed powered convenience outlet is
installed in the equipment, the unit MCA (Min. Circuit
Ampacity) will increase by 7.5A for 208/230V units,
increase by 3.75A for 460V units, and by 3A for 575V
units. The MOP (Max. Overcurrent Protection) device
must be sized accordingly.
•
Disconnect Switch (non-fused; 3-phase units only:)
A disconnect switch is installed in the unit and
factory wiring will be complete from the switch to
the unit. Please note that for air conditioning and
heat pump models, the appropriate electric heat
kit must be ordered to be factory-installed along
with the disconnect switch (non-fused) when it is
ordered. Please note that for models with a powered
convenience outlet option and a disconnect switch
(non-fused) option, the power to the powered
concenience outlet will be shut off when the disconnect
switch (non-fused) is in the off position.
•
Return Air and/or Supply Air Smoke Detectors: Return
air and/or supply air smoke detectors are installed in
the unit.
•
Hinged Access Panels: Allows access to unit's major
components. Combined with latches for easy access
to control box, compressor, filters and blower motor.
Available on all units.
•
Two-speed indoor fan blower models are available on
6, 71/2, 81/2, 10, 121/2, 15, 20 & 25 ton units. Section
6.4.3.10.b of ASHRAE Standard 910.1-2010 and Section
6.5.3.2.1.a of ASHRAE Standard 90.1-2013 require a
minimum of two fan speeds. Section 140.4(m)1 of
California Energy Commission Title 24 2013 cibtaubs a
similar provision. When the units with the two-speed
infoor fan blowers operate on a call for the first stage
of cooling, the fan operates at low speed, which is 66%
of full speed. When the units operate on a call for the
second stage of cooling, the fan operates at full speed.
In heating operation, the fan operates at full speed.
During ventilation operation, the fan operates at low
speed.
•
Return Air and/or Supply Air Smoke Detectors: Return
air and/or supply air smoke detectors are installed in
the unit.
•
Hinged Access Panels: Allows access to unit's major
components. Combined with latches for easy access
to contol box, compressor, filters and blower motor.
Available on all models.
•
Phase Monitor: Phase monitor (3 phase only), available
for 3-25 ton DB and DR series models. Phase monitor
shall provide protection for motors and compressors
against problems caise by phase loss, phase reversal
and phase unbalance. Phase monitor is equipped with
an LED that provides an ON or FAULT indicator.
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