Trane CCRC20, Руководство пользователя

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Mechanical
Specifications
PKG-PRC002-EN 96
wiring shall be terminated at a separate,
clearly marked terminal strip. Direct field
wiring to the I/O boards is not acceptable.
The microprocessor’s memory shall be
nonvolatile EEPROM type requiring no
battery or capacitive backup, while
maintaining all data.
Zone sensors shall be available in several
combinations with selectable features
depending on sensor.
The human interface panel’s keypad
display character format shall be 40
characters x two lines. The character font
shall be 5 x 7 dot matrix plus cursor. The
display shall be supertwist liquid crystal
display (LCD) with blue characters on a
gray/green background which provides
high visibility and interface ease. The
display format shall be in clear language:
English, French, or Spanish.
The keypad shall be equipped with 16
individual touch sensitive membrane key
switches. The switches shall be divided
into four separate sections and password
protected to prevent tampering by
unauthorized personnel. The six main
menus shall be STATUS, SETPOINTS,
DIAGNOSTICS, SETUP, CONFIGURATION,
and SERVICE MODE.
Agency Listing
The unit shall have the US/Canada
Underwriter’s Laboratory agency listing.
Remote Air-Cooled Condenser
Cabinet
The unit framework shall be formed
structural steel members of 14-gauge
galvanized steel. Panels and access doors
shall be 18-gauge galvanized steel. The
unit exterior shall be phosphatized and
finished with air-dried enamel paint.
Refrigerant Circuits and Controls
All sizes shall have dual refrigerant
circuits and shall include an integral
subcooling circuit for each circuit. All
necessary controls to run unit fans shall
be factory installed. The control panel
shall include fan motor contactors,
terminal block connection for compressor
interlock, and 115-volt control power
transformer.
Condenser Coils
The condenser coil arrangement shall be
slab type. Coils shall be seamless
3 /
8
-inch (10mm) OD copper tubes
expanded into aluminum fins. Each circuit
shall include an integral subcooler. The
coil shall be leak tested at 450 psig air
pressure.
Condenser Fans and Motor
Vertical discharge direct drive fans shall
be statically and dynamically balanced at
the factory. Motors shall be three-phase
with permanently lubricated ball bearings,
built-in current and thermal overload
protection and weathertight rain slinger
over the fan shaft.
Protective Coating (Option)
Unit
The unit’s interior and exterior shall have
a 4 to 6 mil coat of protective coating
applied with an air-dry process.
Condenser Coils
The condenser coil shall have a 4 to 6 mil
coat of protective coating applied by a
multiple dip-and-bake process.
Low Ambient Operation Option
Standard ambient control allows
operation down to 45 F (-7.2 C) by cycling
the condenser fans. Low ambient control
damper shall allow the unit to operate
down to 0 F (-17.8 C) by utilizing additional
fan cycling and an external damper
assembly. The low ambient control
damper shall include a 16-gauge damper
assembly. The damper is controlled by
the air-cooled unit’s DDC controller.
Louvered Coil Guards Option
The unit coils shall be covered with a
factory installed decorative louvered grill
type panel for protection.
Agency Listing
The unit shall have the US/Canada
Underwriter’s Laboratory agency listing.
Air-Cooled
Condenser