Dx Cooler Options; Unit Enclosures; Fans; Sound Reduction Options - York eco2 YCAS0425EB Installation Operation & Maintenance

Air-cooled screw liquid chillers
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Phenolic Coated condenser coils – Completed con-
denser coil assemblies are covered with a cured Phenolic
coating. Probably the most suitable selection for seashore
locations where salt spray may come into contact with
the fins, and other corrosive applications except: strong
alkalis, oxidizers, and wet bromine, chlorine, and fluo-
rine in concentrations greater than 100 PPM.

DX COOLER OPTIONS

21 bar (300PSIG) Waterside Design Working Pres-
sure – The DX cooler waterside is designed and con-
structed for 21 bar (300 PSIG) working pressure. (Fac-
tory-mounted)
38 mm (1-1/2") Insulation – Double thickness insula-
tion provided for enhanced efficiency.
Flange Accessory – Consists of raised face flanges to
convert grooved water nozzles to flanged cooler connec-
tions. Includes companion flanges for field mounting.
Remote DX Cooler – Includes the main condensing
unit less the cooler, refrigerant and liquid line devices.
The insulated cooler and field accessory kits per refrig-
erant circuit are supplied separately. The condensing
unit is shipped with a refrigerant charge and the cooler
is shipped with a nitrogen holding charge.
Flow Switch Accessory – Johnson Controls model
F61MG-1C Vapor-proof SPDT, NEMA 4X switch, 10
bar (150 PSIG) DWP, -29°C to 121°C (-20ºF to 250ºF),
with 25 mm (1") NPT (IPS) connection for upright
mounting in horizontal pipe. A flow switch must be
field installed with each unit.
Star-Delta Compressor Motor Starter – Provides ap-
proximately 65% reduced inrush current compared to
across-the-line start (Factory-mounted).

UNIT ENCLOSURES

Wire enclosure – Heavy gauge welded wire mesh
guards mounted on the exterior of the unit (Factory- or
field-mounted).
YORK INTERNATIONAL
Louvered panels and wired guards – Louvered pan-
els mounted over the exterior condenser coil faces, and
heavy gauge welded wire mesh guards mounted around
the bottom of the unit (Factory- or field-mounted).
Louvered panels (condenser coils only) – Louvered
panels are mounted over the exterior condenser coil
faces on the sides of the unit to visually screen and pro-
tect the coils (Factory- or field-mounted).
Louvered panels (full unit) enclosure – Louvered
panels over condenser coils and around the bottom of
the unit (Factory- or field-mounted).

FANS

High static fans – Fans and motors suitable for High
External Static conditions to 100 Pa.

SOUND REDUCTION OPTIONS

Low speed fans – Reduced Revs./sec. (RPM) fan
motors and alternative fan selection for low noise
applications.
Compressor sound enclosures – Acoustically treated
metal compressor enclosures. Includes a compressor
mounted temperature transducer to prevent overheating.

VIBRATION ISOLATION

Neoprene pad isolation – Recommended for normal
installations. (Field-mounted)
25 mm (1") spring isolators – Level adjustable, spring
and cage type isolators for mounting under the unit base
rails (Field-mounted).
51 mm (2") seismic spring isolators – Restrained
Spring-Flex Mountings incorporate welded steel hous-
ing with vertical and horizontal limit stops. Housings
designed to withstand a minimum 1.0 g accelerated
force in all directions to 51 mm (2"). Level adjustable,
deflection may vary slightly by application. (Field-
mounted).
FORM 201.18-NM8
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