SS-DCG7
www.daikincomfort.com
3
Nomenclature
Factory-Installed Options
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Stainless-Steel Heat Exchanger (Gas units only): A tubular heat exchanger made of 409-type stainless steel is installed in the unit.
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Low-Ambient Kit: Allows for cooling operation at lower outdoor temperatures. On the 3- to 6-ton units, cooling operation is extended
from 60°F ambient temperature to 35°F outside air temperature. On 7½ -20 ton units, cooling operation is extended from 35°F
ambient temperature to 0°F outside air temperature. For 25 ton units, cooling operation is extended from 24°F ambient temperature
to 0°F outside air temperature.
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Economizers (Downflow): Based on air conditions, can provide outside air to cool the space.
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Electric Heat Kits (AC and heat pump units only): Available in all voltage options.
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Non-powered Convenience Outlet: A 120V, 15A, GFCI outlet makes it easier for technicians to service the unit once an electrician runs
power to the outlet.
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Powered Convenience 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.
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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 (DSC units) and heat pump models (DSH units), 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 convenience outlet
will be shut off when the disconnect switch (non-fused) is in the off position.
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Return Air and/or Supply Air Smoke Detectors: Return air and/or supply air smoke detectors are installed in the unit.
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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.
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Two-speed indoor fan blower models are available on 6, 7½, 8½, 10, 12½, 15, 20 & 25 ton units. Section 6.4.3.10.b of ASHRAE Standard
90.1-2010 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 contains a similar provision. When the units with the two-speed indoor 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.
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Phase Monitor: Phase monitor (3 phase only), available for 3 - 25 ton DS, DC and DT series models. Phase monitor shall provide protection
for motors and compressors against problems caused 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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DDC Controller: DDC communicating controller, available for 3 - 25 ton DS, DC and DT series models with on-board BACnet
®
communication interface.
