Reznor REC (Evaporative Cooling) Unit Installation Manual - Manual (Page 5)

Form I-REC, P/N 160201 R3, Page 5
Media Pads
Screen
Screen Retainer
Top Pad
Retainer
Screw
Bottom Pad
Retainer
FIGURE 4A - Removing (and
Re-Installing) Media Pads
Install clamps
on one side
of cooler.
Catch Pad
Mounting Trough
Catch
Pad
Catch
Pad
Catch
Pad
Clamp
Step
3
Step
2
Step
1
FIGURE 4B - Install Moisture Elimination Catch
Pads, Option ASA1, on Sizes 180 and 360 (See
parts list, page 4.)
Install Moisture Elimination Pads (FIGURE 4B)
1) Prepare module by attaching two catch pad clamps
to one side of the cooler’s front legs. Screw through
the legs into the clamp with four of the #10 x 1/2”
long sheetmetal screws.
2) Prepare catch pads by assembling them together.
Use three of the #10 x 1/2” long sheetmetal screws.
3) Guide the catch pad assembly through the inlet
of the cooling module and place the bottom of the
lower pad into the catch pad mounting trough.
The screen part of the catch pad assembly should
always be facing the attached air mover. Slip the
catch pad assembly into the two slots located in the
catch pad clamps installed in Step (1).
4) With the pads in place, complete the assembly by
sliding one of the two remaining clamps over the
middle seam where the assembled catch pads
meet. Slip the other clamp over the top catch pad
frame and fasten both clamps to the cooling module
leg using sheetmetal screws.
After completing installation of the moisture elimination
pads as shown in FIGURE 4B, re-install the media pads
removed in FIGURE 4A. Refer to FIGURE 4C before
re-installing media pads.
45°
Airflow
to S
pace
Out
side Airflow
IMPORTANT: Cooling media is made up of two
different sheets of cooling material. Each has its own
unique angle. When replacing the cooing media, BE
CERTAIN the 45° angle slopes downward toward
the incoming outside air. If the media is not installed
properly, water blowoff from the media pads will occur.
FIGURE 4C - Airflow Direction through the
Media Pads
3.2 Water Flow
Controls and
Connections
3.2.1 Water Flow Controls
Water flow is controlled by either a float and recirculating pump system or a timed
metering system. Follow the instructions for the type of controls on the evaporative
cooling module being installed. Float and recirculating pump type controls are identi-
fied on the wiring diagram as Option ECD2. AquaSaver timed metering controls are
identified as Option ECD1.
Reverse Steps
in FIGURE 4A to
replace the media.
Media must be
installed with the
airflow direction as
shown here.
FIGURE 5 - Re-position
the pump/junction
assembly.
For shipping, pump/
junction box assembly
is attached at the top.
Remove pump/junction
box assembly from
shipping position
(above) and re-attach
in “working” position.
To avoid shipping damage, the
pump/junction box assembly is
attached to the top of the side
panel for shipment. Support
the pump and remove the four
screws that hold the assem-
bly in position. Re-position the
assembly as shown in FIG-
URE 5, and attach using the
same screws.
3.2.2 Re-position
Pump Assembly (Opt
ECD2, float & pump
only.)