Reznor RBL Option - Installation - Evaporative Cooling Option - Manual (Page 11)

Mfg No. 160202, Page 11
WARNING:
Disconnect all
power to the unit
before doing any
maintenance.
Failure to do so
may cause
electrical shock,
personal injury or
death. Evaporative Cooling Module Media Pads
Media
Pad
Sizes
6” 12” 6” 12”
48x12 4 107190 107194 107199 107201
48x8-5/8 1 107191 107195 107200 107202
Replacement Part No.
Cellulose Glass Fiber
Qt
y
Instructions
for Replacing
Evaporative
Cooling Media
Pads
(FIGURE 16)
1. Remove the three sheetmetal screws that hold the top pad retainer in place. Release
the top pad retainer from the cooling module.
2. Remove the three sheetmetal screws that hold the bottom pad retainer in place.
Release the bottom pad retainer from the cooling module.
3. Disengage the screen retainers from the sides of the media.
4. Disengage the inlet screen from the media pads and remove from the cooling module.
5. Slide all media pads horizontally away from the cooling module until clear of bottom
reservoir pan. Dispose of media properly.
6. Slide new media pads over both support rails until back stop is encountered. Media
MUST be placed with airflow as shown in FIGURE 17.
7. Center screen on the incoming air side of the media.
8. Re-position the two side screen retainers by fitting them between the side of the
media pad and the side of the cooling module. The retainers should fit snugly, pinch-
ing the screen against the media pads.
9. Position the bottom pad retainer between the pad and the reservoir pan. Fasten with
the three sheetmetal screws removed in Step 2.
10. Position the top pad retainer between the pad and the top of the cooling module.
Fasten with the three sheetmetal screws removed in Step 1.
Media Pads
Screen
Screen Retainer
Top Pad
Retainer
Screw
Bottom Pad
Retainer
FIGURE 16 - Removal and Replacement of
Evaporative Cooling Media
45°
Airflow
to Space
Outside
Airflow
FIGURE 17 - Airflow Direction through
Media Pad
I MPORTANT: Cooling media is made up of two differ-
ent sheets of cooling material. Each has its own unique
angle. When replacing the cooling media, BE CERTAIN
the 45° angle slopes downward toward the incoming out-
side air. If the media is not installed properly, water
blowoff from the media pads will occur.
Water Feed Line and PVC Distribution Piping
– Annually, the water supply line and the
PVC water distribution pipe should be flushed of debris and contaminants. Remove the
media pads following the instructions above. Remove the water feed line from the down-
stream side of the ball valve and unscrew the water bleed line barbed hose fitting. Force a
fresh water supply up through the water inlet hose and thoroughly flush the distribution
pipe.
Water Pump and Inlet Basket Screen
– Annually, the pump and inlet basket should be
removed, disassembled and cleaned.
WARNING: Do not expose pump motor or any part of the electrical
box to water. Evaporative cooling pump is NOT submersible.
11. Water
Lines
Select the correct replacement part numbers
and order replacement media pads through
your Reznor Distributor. Follow the instruc-
tions below and remove and replace pads as
shown in FIGURES 16 and 17.
12. Water
Pump