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PRODUCT DESCRIPTION
DX COOLER OPTIONS
300 PSIG (21 bar) Waterside Design Working Pressure
– The DX cooler waterside is designed and constructed
for 300 PSIG (21 bar) working pressure.
(Factory-mounted)
1-1/2" (38 mm) Insulation – Double-thickness insulation
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 refrigerant
circuit are supplied separately. The condensing unit is
shipped with a dry nitrogen holding charge and the cooler
is shipped with a dry nitrogen holding charge.
Flow Switch Accessory – Johnson Controls model
F61MG-1C Vapor-proof SPDT, NEMA 4X switch, 150
PSIG (10 bar) DWP, -20°F to 250°F (-29°C to 121°C),
with 1" NPT (IPS) connection for upright mounting in
horizontal pipe or equivalent. A flow switch must be field-
installed with each unit. A 300PSIG (20.7 bar) optional
flow switch is available.
SERVICE VALVE OPTION
Suction Service Valve – Provides a suction and econo-
mizer service valve on each refrigerant circuit.
UNIT ENCLOSURES
Wire Enclosure – Heavy-gauge welded wire mesh
guards mounted on the exterior of the unit (Factory- or
field-mounted).
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 protect the
coils (Factory- or field-mounted).
20
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
Silent Night – This option allows speed limiting of
the compressors remotely or locally to reduce acoustic
noise. As speed is limited, fewer condenser fans are
needed for cooling, reducing noise.
Ultra Quiet Fans – Reduced RPM fan motors and
alternative fan selection for low noise applications.
Compressor Blankets – Acoustic compressor sound
blankets are optional to reduce compressor noise.
Acoustic Perimeter Enclosures (field mounted)
– Perimeter enclosure option provides acoustically
tuned panels around the bottom of the chiller to reduce
noise.
VIBRATION ISOLATION
Neoprene Pad Isolation – Recommended for normal
installations (Field-mounted).
1" (25 mm) Spring Isolators – Level adjustable,
spring and cage type isolators for mounting under the
unit base rails (Field-mounted).
2" (51 mm) 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 2" (51 mm). Level adjustable,
deflection may vary slightly by application (Field-
mounted).
FORM 201.21-NM3 (616)
JOHNSON CONTROLS
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