York PREDATOR R-410A, Техническое руководство

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246824-YTG-G-1208
6 Johnson Controls Unitary Products
flash an alarm code on the control board LED. Each
high and low-pressure switch alarm as well as each
freezestat alarm has its own flash code. The control
board saves the five most recent alarms in memory,
and these alarms can be reviewed at any time.
Alarms and programmed values are retained through
the loss of power.
• Reliable – From the beginning – All units undergo
computer automated testing before they leave the factory.
Units are tested for refrigerant charge and pressure, unit
amperage, and 100% functionality. For the long term – All
Predator
®
units are painted with a long lasting, powder
paint that stands up over the life of the unit. The paint
used has been proven by a 1000 hour salt spray test.
• Flexible Placement – All models and configurations
share the same cabinet/footprint and thus the same roof
curb. You have the flexibility to set one curb and choose
the correct tonnage size and heating option after the
internal loads have been determined.
To further simplify planning and installation, Predator
®
ZH/ZR/XP cabinets are designed to fit your roof. With the
optional roof curb, the unit ductwork is designed to fit
around 24” on-center joists or between 48” on-center
joists.
The drain pan can be rotated to drain to either the front or
the rear of the unit. Additionally, the drain pan can be
fitted to drain through the roof curb. As it is sometimes
difficult to have a level installation, the drain pan features
a generous slope to ensure proper drainage.
• Full Perimeter Base Rails – The permanently attached
base rails provide a solid foundation for the entire unit and
protect the unit during shipment. The rails offer forklift
access from 3 sides, and rigging holes are available so that
an overhead crane can be used to place the units on a roof.
• Easy Installation – Gas and electric utility knockouts are
supplied in the unit underside as well as the side of the unit.
A clearly identified location is provided to mount a field
supplied electrical disconnect switch. Utility connections can
be made quickly and with a minimum amount of field labor.
All units are shipped with 2” throw-away filters installed.
• Wide Range of Indoor Airflows – All indoor fan motors
are belt-drive type providing maximum flexibility to handle
most airflow requirements. For high static applications,
factory installed alternate indoor fan motors are available.
With the optional indoor fan motor, all units can supply
nominal airflow at a minimum of 1.5” ESP.
• Warranty - All models include a 1-year limited warranty
on the complete unit. Compressors and electric heater
elements each carry a 5-year warranty. Aluminized steel
and stainless steel tubular heat exchangers carry a 10-
year warranty.
Factory Installed Options
YORK
®
offers several equipment options factory installed, for
the Predator
®
line.
• Optional Factory Installed Economizers - Predator units
offer a variety of optional factory installed economizers
with low leak dampers. The outdoor air enthalpy sensor
enables economizer operation if the outdoor enthalpy is
less than the setpoint of the economizer logic module. See
economizer options section to determine the correct
economizer for your application.
• Downflow Economizer - (With barometric relief) -
The economizer is provided with a single enthalpy input.
The economizer is 2% low leakage type, and is shipped
installed and wired. The installer needs only to
assemble and mount the outdoor air hood (Provided).
The economizer has spring return, fully modulating
damper actuators and is capable of introducing up to
100% outdoor air. As the outdoor air intake dampers
open, the return air dampers close. The changeover
from mechanical refrigeration to economizer operation is
regulated by the standard single enthalpy input. There is
an optional input dual dry bulb available. To meet
regulated air standards, the economizer control accepts
an optional CO
2
input for demand ventilation. With
single enthalpy input, the economizer control monitors
outdoor air. The dual enthalpy kit provides a second
input used to monitor the return air. With a dual input kit
installed, the economizer control compares the values of
the two enthalpy or temperature inputs and positions the
dampers to provide the maximum efficiency possible.
• Horizontal Economizer - (Without barometric relief) -
All features of the downflow economizer exist except you
must order the duct mount barometric relief separately.
You must order a 1EH0408 if you are installing a
power exhaust. You can order a 1RD0411 Barometric
Relief for horizontal flow economizers only.
• BAS Ready Economizer -(With barometric relief) -
The economizer is provided with an actuator that
requires a 0-10V DC input from an external source (i.e.,
field installed building automation system controller).
Power exhaust options are available. The economizer is
2% low leakage type with spring return and fully
modulating dampers capable of introducing up to 100%
outside air. Also include 2” pleated filters.
• Slab Economizer for Energy Recovery Ventilators -
(With barometric relief and Fresh Air Hood) - The
economizer is provided with a single enthalpy input. The
economizer is 2% low leakage type, and is shipped
installed and wired. The economizer has spring return,
fully modulating damper actuators and is capable of
introducing up to 100% outdoor air. As the outdoor air
intake dampers open, the return air dampers close. The
changeover from mechanical refrigeration to
economizer operation is regulated by the standard
single enthalpy input. There is an optional input dual dry
bulb available. To meet regulated air standards, the
economizer control accepts an optional CO
2
input for
demand ventilation.With single enthalpy input, the
economizer control monitors outdoor air. The dual
enthalpy kit provides a second input used to monitor the
return air. With a dual input kit installed, the economizer
control compares the values of the two enthalpy or
temperature inputs and positions the dampers to
provide the maximum efficiency possible.
• Power Exhaust (Downflow only) - This accessory
installs in the unit with a down flow economizer.