York Predator ZT037 Technical Manual page 7

operation is regulated by the outdoor air dry bulb
temperature or the outdoor air enthalpy input. The optional
(field installed) single or dual enthalpy kits provide
additional inputs to monitor outdoor air/ or return air
humidity and temperature for true enthalpy control. The
installer needs only to assemble the outdoor air hood,
attach the enthalpy control the hood and mount the hood
to the unit (Hood and control are provided).
• Power Exhaust - This factory option allows down flow or
horizontal end return economizer operation. The power
exhaust must be removed from the unit and mounted
in the horizontal end return duct work when applying
the product in the horizontal, end return
configuration.
• Motorized Outdoor Air Damper - The motorized outdoor
air damper includes a slide-in/plug-in damper assembly
with an outdoor air hood and filters. The outdoor air
dampers open to the preset position when the indoor fan
motor is energized. The damper has a range of 0% to
100% outdoor air entry.
• Alternate Indoor Blower Motor - For applications with
high static restrictions, units are offered with optional
indoor motors that provide higher static output and/or
higher airflow, depending upon the installer's needs.
• Aluminized Steel Gas Heat Exchanger - For
applications in non-corrosive environments.
• Stainless Steel Gas Heat Exchanger - For applications
in corrosive environments, this option provides a full
stainless steel heat exchanger assembly.
• Low NOx Option - For units with gas furnaces in
locations where codes require that the Oxides of Nitrogen
emissions from the furnace be below 40 Nano grams per
joule.
• Stainless Steel Drain Pan - An optional rust-proof
stainless steel drain pan is available to provide years of
trouble-free operation in corrosive environments.
• Electric Heaters - The electric heaters range from 3kW to
24kW and are available in all the voltage options of the
base units. All heaters are intended for single point power
supply.
• Disconnect Switch - For gas heat units and cooling units
with electric heat, a HACR breaker sized to the unit is
provided. For cooling only units, a switch sized to the
largest electric heat available for the particular unit is
provided. Factory installed option only.
• Convenience Outlet - (Non-Powered/Powered) - This
option locates a 120V single-phase GFCI outlet with cover,
on the corner of the unit housing adjacent to the
compressors. The "Non-powered" option requires the
installer to provide the 120V single-phase power source and
wiring. The "Powered" option is powered by a stepdown
transformer in the unit. Factory installed option only.
• Smoke Detectors - The smoke detectors stop operation
of the unit and provide a fault message to the control
board. Smoke detectors are available for both the supply
and/or return air configurations.
Johnson Controls Ducted Systems
• Filters - 2" Pleated MERV 8 or 4" Pleated MERV 13 are
available to meet LEED requirements. A 2" Throwaway is
shipped as standard.
Factory-installed smoke detectors may be subjected to
extreme temperatures during "off" times due to outside air
infiltration. These smoke detectors have an operational
limit of -4°F to 158°F. Smoke detectors installed in areas
that could be outside this range will have to be relocated to
prevent false alarms.
• Phase Monitors - Designed to prevent unit damage. The
phase monitor will shut the unit down in an out-of phase
condition. (Standard on units with Scroll Compressors.)
• Coil Guard - Customers can purchase a coil guard kit to
protect the condenser coil from damage. Additionally, this
kit stops animals and foreign objects from entering the
space between the inner condenser coil and the main
cabinet. This is not a hail guard kit.
• Dirty Filter Switch - This kit includes a differential
pressure switch that energizes the fault light on the unit
thermostat, indicating that there is an abnormally high
pressure drop across the filters. Factory installed option or
field installed accessory.
• E-Coat Condenser Coils - The condenser coils are
coated with an epoxy polymer coating to protect against
corrosion.
• E-Coat Evaporator Coils - The evaporator coils are
coated with an epoxy polymer coating to protect against
corrosion.
Control Options
• Smart Equipment™ with Communication Option
Control - The York® Smart Equipment™ with
Communication Option Control is factory installed. It
includes all the features of the Smart Equipment™ control
with an additional gateway to BACnet MS/TP
(programmable to Modbus or N2 protocols).
• FDD (Fault Detection and Diagnostics) - Refrigerant
side A factory installed control system option on the
commercial equipment that constantly monitors
refrigerant circuit pressures, refrigerant circuit
temperatures, as well as the environmental temperatures
and humidity via multiple sensor inputs.
• Provides a building owner, technician or contractor with
the operational characteristics of the RTUs entire
refrigerant circuit to ensure the unit is functioning at its
specified performance level.
• Provides alarms if the unit is not functioning optimally.
• Remotely accessible via the Mobile Access Portal
(MAP) gateway as well as scrolled on the UCB LCD
screen.
• Novar® BAS Control - The Novar® building automation
system controller is factory installed. Includes supply air
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