SPX Cooling Technologies Recold JW Series - Manual (Page 3)

Recold / JW Series Fluid Cooler / Construction
3
The JW Evaporative Fluid Cooler is a ruggedly built unit constructed to provide many years of durable,
dependable service with minimal maintenance requirements. Quality materials and workmanship are a key
factor in meeting this objective.
FAN MOTORS
Fan motors furnished as standard equipment are open
drip-proof type suitable for outdoor service. Motors
have a 1.15 service factor and are mounted on a
heavy duty adjustable base located for easy access.
FAN GUARD SCREENS
All moving parts are protected with OSHA approved
galvanized steel screens. Each guard is easily
removed for access to the fan.
FAN SECTION
The centrifugal fan is
forward curved, statically
and dynamically balanced
and constructed of
galvanized steel. The fan
housing has curved inlet
rings for efficient air entry
and discharge into the
pan. Fans are mounted
on a solid steel shaft
coated to resist corrosion.
Heavy duty, pillow block
type, self-aligning ball
bearings are located at
each end of the fan shaft.
No intermediate bearings are
required
Extended lube lines are supplied as standard
equipment to allow servicing bearings without
removal of fan guard screens.
WATER CIRCULATION PUMP
The water circulation pump is a close coupled, bronze
fitted centrifugal type with mechanical seal. Each
pump is factory mounted and piped. Standard motor
is open drip-proof suitable for outdoor service.
DRIFT ELIMINATORS
Eliminators are constructed of PVC assemblies in
removable, easy to handle sections. Each section has
a three break design allowing three changes in air
flow and measure approximately 5 inches in depth.
The use of durable PVC eliminates the corrosion
problems associated with galvanized eliminators.
HEAT EXCHANGE COIL
Coil tube bundle is constructed of 5 ⁄
8
" copper
tubing with stainless steel tube sheets
and copper headers. The copper
construction offers a
noncorrosive coil for extended
service life.
ACCESS DOORS
Large rectangular access
doors are strategically
located to provide access
to both upper water
distribution system and
lower pan basin. The
patented doors provide a
complete air and water tight
seal without the use of
gaskets or fasteners
WATER MAKE-UP
Water make-up is provided
by a solid brass float valve with arm
and float ball installed in an external float
b o x . This allows easy observation of the water
operating level and maintenance of the valve with unit
in operation.
Construction: The Evaporative Fluid Cooler sump pan is constructed of 300 stainless steel and casing panels
are constructed of heavy gauge, G-235 galvanized steel. The sump pan and casing panels are flanged outward
so that all the connecting fasteners are located outside the flooded section of the unit to help prevent leaks
in the unit and provides a more permanent watertight joint. To provide further protection from corrosion, no
welded joints are located below the water line. The unit is designed for a 30 psf on any projected area and ships
in one piece on a minimum 6" high stainless steel channel base to help in handling and installation of the unit.