5
Operating Instructions and Parts Manual
23976/23977
12/18
2018 OEMTOOLS
™
3 SPEED EVAPORATIVE COOLER
REMOVAL OF THE BACK PANEL
Disconnect power supply before this procedure.
1. Unscrew the screws at top of back panel (3).
2. Lift panel up and pull out at the bottom.
3. Slide the panel out of the cabinet.
4. You will now have access to the pump, float valve and
the water distributor spreaders.
Unscrew the screws in the
back panel first, then pull
the back panel up.
Pull out the bottom of
the back panel then take
it down.
DRAINING THE COOLER TANK
Unscrew drain cap from drain assembly and drain away
water. You may tip the unit carefully to the drain side to
help drain all the water out.
REMOVAL AND REPLACEMENT OF
COOLING MEDIA
The cooling pads are made from a special resin
impregnated craft paper specially designed for
evaporative cooling. They will last many years if
maintained properly and water quality is maintained. It is
not necessary to remove the pads to clean them.
Inspect the pads for deposits of calcium on the air
entering side. If the flute cells are clogged or the pad is
very heavy, it may be time to change the media. New
OEMTOOLS™ media can be purchased where you
bought the cooler. Follow these steps for replacing the
pads.
1. With access panel removed, simply pull off the pad
retainer disc from the pad pin.
2. With disc removed, remove the pins from the pads and
carefully remove pads from the fixed side mounting
frame. Then do the same for the back panel or panels.
3. Pads are made with a 45/45 flute and can be installed
either side to the frame. Just make sure the distribution
pad that is fixed to the top of the new media pad is at
the top. This allows water to get onto the top of the
pad evenly. The installation of the pads is opposite of
the removal: Install the pad, insert pins and install the
retaining disc.
4. Reinstall the back panel and you are ready to use the
cooler again.
PUMP MAINTENANCE AND REPLACEMENT
NOTE
:
Disconnect power supply before this procedure.
The submersible pump is mounted inside the tank to the
bottom with a retention bracket. While you are cleaning
the cooler, the pump may be removed and the strainer
cap on the bottom of pump can be cleaned of debris. If
pump has failed and needs replacing, follow these steps:
1. Remove retaining screws.
2. Remove the switch control panel from the top of cooler
by inserting a small screwdriver into the tap slots and
pop loose.
3. The pump is connected to the control via the white
plastic clip. Disconnect the pump clip and feed the
plastic clip through the control box into the cooler.
4. There are cable ties holding the power cable to the
water hose, which is routed up the front corner of the
cooler. Remove the cable ties. Remove the pump from
cooler when cable is free.
5. Re-install the new pump in reverse. Be sure to
reconnect the cable in the twist ties and secure the
cable in a manner of which it stays clear of fan blade
when cooler is running. Re-attach the pump clip in the
control box. Be sure not to pull any other wires loose
from control switches when you have panel loose.
6. Re-install the control panel into the cabinet making
sure it is seated.
FLOAT VALVE REPLACEMENT OR ADJUSTMENT
NOTE
:
Disconnect power supply before this procedure.
The float valve is mounted to the left side of the cooler
if you are facing the front grill. It is held in place by the
retaining nut that is visible from the outside. The rubber
washer is between the nut and cabinet. The rear panel will
have to be removed to adjust the float (if the water level is
too high or too low) or remove and replace a float that has
failed to shut off water supply.
NOTE
:
Be sure that the PSI of the supply water is within
the 50 PSI specification before determining that the float
has failed.
1. The float valve can be purchased where you purchased
your cooler.
2. Remove any hose adapters attached to the float valve
nipple.
3. Remove the rear panel assembly as instructed in
Section 5.
4. Remove the float valve retaining nut and rubber washer.
Then remove float valve from cabinet.
5. Re-install the float valve in reverse. Set the valve
adjustment to around 60 degrees for best results.
