Essick Air RN50W User Manual

CHAMPION•ESSICK

Window Evaporative

Cooler Manual

Manual Control Units

WC37 • N37W
WC44 • N44W
WC46 • N46W
WC50 • N50W

Remote Control Units

RWC35 • RN35W
RWC46 • RN46W
RWC50 • RN50W

Circle the model of your cooler and
record the serial number below.

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Convertible Kit Not Shipped With Cooler

Available Upon Request At No Additional Cost

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Encierre con un circulo el modelo de su
enfriador y escribe el número de serie abajo.

Serial #

Número De Serie

Read And Save These Instructions

Vea el Español en el interior

Evaporative Cooling

Evaporative cooling is nature’s way of cooling. When air is moved
over a wet surface, water is evaporated and heat is absorbed. When
stepping out of a swimming pool with the wind blowing, evaporative
cooling makes you feel cool, even though the air may be warm.
The human body itself is cooled primarily by the evaporation of
perspiration.

This unit works on the same principle. Air is drawn across wet
fi lter pads where the air is cooled by evaporation and then circulated
throughout the building. It is this combination of cooled air and the
movement of air over the skin which makes it feel cool.

Unlike refrigeration systems which recirculate the air, an evaporative
cooler continually brings in fresh air while exhausting old air. You
are completely replacing the air every 2 to 4 minutes by opening
windows or doors or a combination of both. The air is always fresh,
not stale, laden with smoke and odors as happens with refrigerated
air conditioning.

Read Carefully All Of This Manual
Before Installing The Unit.

Lea Con Cuidado Todo Este Manual Antes
De Instalar La Unidad.

Safety Rules

1. Read these instructions carefully.

2. Unit must be in the Off Position and Unplugged from power

receptacle when installing or performing any maintenance.

3. This cooler will run on 120 volt A.C., 60 Hz (cycle) current
only.

4. Motor and pump are grounded and have an automatic thermal
overload switch which will shut motor off when it overheats. The
motor will restart automatically when it cools down.

5. Pump receptacle is for grounded evaporative cooler pump only.
Do not plug anything else into receptacle.

WARNING: T o reduce the risk of fi re or electric shock, do not

use this fan with any “solid-state fan speed control device.”

110496-1 9-09www.championcooler.com

Operation

IF It falls down.
THEN CLOSE all of the windows one inch and try step 4 again.

Manual Control Units

• Pump setting. The rotary switch has 6 settings. The “Pump”

setting will operate the pump without the blower. For best results
turn the switch to “Pump” for a few minutes to wet the pads before
operating the fan.

• High and low cool settings. The “High Cool” and “Low Cool” set-

tings operate both the pump and the blower. T urn the unit to “Low
Cool” when possible. This lower speed allows the air to stay longer
in the wet pads and therefore increases it’s cooling effi ciency.

• High and low vent settings. The “High Vent” and “Low Vent”

settings operate the blower without the pump. This is useful on
cool nights or at times when just a fan is desired.

Remote Control Units

These units may be controlled using the 3 buttons on the front panel
of the cooler or with the remote control.

• PUMP button. Pressing this button toggles the pump on and off.

When the LED is lit, the pump is running. For best results turn
on the pump for a few minutes to wet the pads before operating
the fan. The pump must be on while operating the fan for cooling.
You may also want the pump turned off at times when just a fan is
desired.

• FAN button. Pressing this button will cycle the fan through High

Speed / Low Speed / Off. The LED’s on the front of the control
indicate wether the fan is on high speed, low speed or off (no LED’s
lit). Note: There will be a 2 second delay between a button press

and the operation of the fan.

• ON/OFF button. Pressing this button while the pump or fan is on

will turn everything off. Pressing it again while in the off state will
return the fan and pump to their previous operating settings. When
fi rst plugging in the cooler or after power has been interrupted,
pressing the On/Off button will start the cooler in the default state
which is with the pump on and the fan on high.

• Remote Control. To operate the cooler with the remote you must

be within 20 feet and in sight of the cooler. Aim the remote at the
front panel. The buttons on the remote control have the same func­tions as the buttons on the front panel of the cooler. The remote
uses two AAA alkaline batteries which are included. A holder for
mounting on a wall is also included with the unit.

Open Windows To Exhaust Air

An often misunderstood concept of evaporative cooling is the amount
of air that should be exhausted. How much should you open your
windows? The fact is that most people do not open their windows
enough. The following method will help you determine the amount
to open your windows.

Champion Air Balancing Method

1. Take a piece of tissue paper and cut it lengthwise into 3 equal
strips.

2. Turn your cooler on High Cool.

3. Open one window at least six inches wide in each room that you
want to cool.

4. Take the piece of tissue paper and put it up against the screen of
the open window furthest from the cooler discharge opening. Let
go of it. It will do one of three things.

IF It plasters itself to the screen.
THEN OPEN all of the windows one inch and try step 4 again.

IF It stays on the screen lightly.
THEN PERFECT. You are done. Enjoy your cooler.

Notes:

• When switching to Low Cool, you must rebalance your home.
Repeat step 4.

• Once you balance your home you can cool some areas more than
others by opening those windows more and closing the others by
the same amount. Repeat step 4 to make sure your home is still air
balanced.

Cooler Installation

Installing House Legs

• NOTE: If installing unit without the use of the installation kit,
omit these directions and those pertaining to Fig. 2.

• Remove two corner screws in the bottom pan (A-Fig 1).

• Place the house leg bracket in the
corner of the bottom pan, using the
two top holes in the bracket (B-Fig 1).
Replace the two previously removed
screws to hold the house leg bracket
in place (As shown by dotted house
leg bracket).

• Refer to the instructions “Adjust
house legs” below for adjusting the
house legs.

B

Mounting Cooler

CAUTION: Make sure that the mounting surface is strong

enough to support the operating weight of the cooler when in use.
(For operating weight, see Specifi cation Table.)

CAUTION: Never plug in cooler until installation is complete

and unit has been tested for rigidity.

• Lift out all removable louvered sides.

• Screw chain hooks into window facing. Position the two chain
hooks above the neck of
the cooler a distance equal
to the width of the cooler
apart (A-Fig. 2). Hook
one hanger chain in each
hook and then one “S”
hook in the other end of
each chain.

NOTE: The chain hooks

supplied with this mount­ing kit are for use in wood.
Additional anchors can be
purchased at your local
hardware store for an­choring in other types of
materials such as concrete
or brick.

D
C

Window

Neck

H
E

A

G

F

A

Fig. 1

“S” Hook

B

Fig. 2

2

110496-1

• Install window panel
retainers. Place two

Window Fill-In

Panels

panel retainer strips onto
bottom of neck flange
and position to the width
of the window. Cut the

Top Panel

Retainer

strips to fi t if necessary.
These strips hold the
window fill-in panels
(Fig. 3).

Bottom Panel
Retainer

Fig. 3

• Position cooler in win-
dow. Position neck of
cooler so that bottom of neck fl ange rests on window sill and fl ange
(E-Fig. 2) is snug against edge of sill (H-Fig. 2). With cooler in
position, hook the “S” hooks into the holes of the top pan near the
back of the cooler (B-Fig. 2).

• Break fi ll-in panels to fi t. With cooler installed, as described
above, measure for each window fi ll-in panel and score with sharp
knife and straight edge guide to desired width. To break window
fi ll-in panels, the panel should be laid over the edge of a straight fl at
surface at the point to be broken off. Apply pressure on the edge
of the panel that extends over the edge of the surface and break off
unwanted piece.

• Install fi ll-in panels. Place one window fi ll-in panel on each side
of grill and into panel retainer strip at bottom of grill. Place the
other panel retainer strips onto top of neck fl ange and fi ll-in panels.
Be sure the panels are snug up against cooler neck.

• Place window behind retainer strip. Raise back of cooler so that
the window (D-Fig. 2) may be brought down behind top of panel
retainer strip (C-Fig. 2).

• Level Cooler. Adjust the chains to level the cooler.

• Adjust house legs. Pull out house legs so that the rubber bumpers
rest against house siding (F-Fig. 2). Tighten screw in retaining
collar. (G-Fig. 2).

Connecting Water

• Install overfl ow assembly. Remove
nut and place nipple through the hole in
the pan, with the rubber washer between
the pan and the head of the drain nipple
(Fig. 4). Screw on nut and draw up tight
against bottom of pan. Insert overfl ow
pipe in nipple to retain water. Overfl ow
pipe may be removed to drain pan when
necessary. A garden hose may be
screwed on the drain nipple to
drain water away from your unit.

• Connect water supply line. In­stall a sillcock and water valve on
faucet as shown by fi gure 5. Place
the nut and ferrule on the tubing
and tighten the nut until water
tight.

Sillcock

Fig. 4

Faucet

Fig. 5

Overfl ow Pipe

Nipple
Rubber Washer

Bottom Pan
Nut

Water Supply

Valve

Ferrule

Nut

• Install fl oat valve. Install

valve in the provided hole in
corner post (Fig. 6) and attach

Corner Post

Water Supply

Line

water supply line.

• Fill pan. Allow water to fi ll

Float Rod

to within 1” of the top of the
overfl ow pipe and adjust fl oat
to maintain this water level.
This can be accomplished by
bending the float rod (Fig.

Fig. 6

Washer

Nut

Nut

Ferrule

6).

Maintenance

WARNING: Before doing any maintenance be sure power is

off and unit is unplugged. This is for your safety.

Spring Start-Up

• Oil bearings. The blower bearings and cooler motor in this unit

should be oiled with a few drops of non-detergent 20/30 weight oil
once each year. The motor does not need oil if it has no oil lines
for oiling. Motors that have no oil lines are lifetime oiled at the
factory and require no further oiling for the life of the unit.

CAUTION: Do not over oil.

Over oiling can cause motor burn
out, due to excessive oil getting into
motor winding.

• Check belt tension. A 3 lb. force

should defl ect the belt 3/4 inches (see
Fig. 7). Readjust belt if needed.

• Clean pump. Cleaning the pump is necessary once a year at start-

up. For your safety, turn unit of f and unplug from power receptacle.
Remove the pump from the mount slot. Remove the base of the
pump as shown in Fig. 8. Clean the pump and turn the impeller
to ensure free operation. Remove the pump spout and check for
any blockage. After cleaning,
reinstall the base onto the pump.
Press fi rmly to make sure it is

Remove

Base

secure. Reattach the pump to
the mount in the cooler using
the plastic retainer to ensure that
the pump will not overturn. Do
not forget to replace the spout
and water delivery tube onto the
pump outlet.

• Replace Pads. Aspen pads should be replaced once or twice a

season, depending upon the length of the season. At the beginning
and at mid season a clean pad is more absorbent and effi cient and
will deliver substantially more cool air.

Winter Shut Down

• Drain water. Always drain all of the water out of the cooler and

water supply line when not in use for prolonged periods, and par­ticularly at the end of the season. Keep the water line disconnected
from both the unit and water supply so that it does not freeze.

• Cover unit. T o protect the life of the fi nish, a cover for the unit is

suggested in extended periods of non use.

3 Lb.

3/4 Inches

Fig. 7

Impeller

Fig. 8

110496-1

3

• Cover grill. To help keep out cold air you can use the optional

plastic grill cover. This cover may be purchased from your local
distributor. To install the cover, line up the grill cover with the grill
so that the tabs on the cover will slide over the center section of the
grill. Slide the grill cover onto the grill. The tabs will snap into
place. To remove, just pull the grill cover straight forward away
from the grill.

• Unplug unit from power supply during extended periods of

non-use.

By following the operating, installation, and maintenance suggestions
as outlined, you can get many years of effi cient and satisfactory
service from your cooler. In the event additional information is
desired, your dealer will be more than glad to assist you in every
possible way.

Vertical Duct Conversion

This window unit can be reconfi gured to a vertical tunnel con-
fi guration for installation into smaller width openings. Follow the

subsequent steps if this is desired. Note: T unnel mount strips used
to convert tunnel are not shipped with this cooler. If desired,
call Customer Service at 1-800-643-8341 to have it shipped to
you at no cost.

1. Remove the 9 screws
from the sides and bot­tom of the tunnel.

2. Remove the top 4 mid­dle screws of the top
pan while holding the
tunnel in place (Fig 9).
Be careful not to drop
the tunnel, or damage
to the electric cords
could occur. You may
need to loosen other
screws in the top pan
to make it easier to remove the tunnel.

3. Rotate the tunnel 90 degrees counter-clockwise (Fig 10). Be care­ful as you rotate the tunnel that you don’t damage or disconnect
the cords which are still connected to the controls and the front
panel.

Remove top
screws last. Do
Not Drop Tunnel

Fig. 9

4. Insert the fl ange of the tunnel
between the front panel and the
top pan. Line up the two larger
holes in the tunnel with the
center two holes of the top pan.
(Fig 11).

5. Using the screws taken from the
top pan, secure the tunnel to the
unit. Do not tighten the screws,
leave them loose until the rest of
the tunnel has been secured.

Fig. 10

6. Line up the three holes at the
bottom of the tunnel with
the holes in the front panel.
Using the screws taken from

Line up to the two

middle holes

the bottom of the tunnel pre­viously, secure the tunnel to
the front panel.

7. Make sure all the screws re­moved from the top pan are in
place and tighten all screws.

8. Skip this step for the RWC35
& RN35W models. Remove
the three screws (2 in models
WC37 & N37W) from each

Fig. 11

side of the front panel as
shown in fi gure 12.

CAUTION: Make sure that

Metal
Strip

you do not remove the bottom
most screw. It holds the blower
housing in place.

9. To cover up the gap in the front
panel, use the two strips of metal
obtained from Customer Service.
Line up the holes in the metal strips
to the holes in the front panel and
secure them with the screws pre­viously removed in step 8. (See

Do Not Remove
Bottom Screw

Fig. 12

Fig. 12) Install the metal strips so
that there is no gap between the
top pan and the metal strip. If there is a gap, turn the metal strip
around.

NOTE: When mounting a cooler with this type of vertical tunnel
confi guration, the unit should be supported by a fl at support or
stand. The installation method mentioned in the owner’s manual
using chains and legs should not be used. The fi ller panels in
the installation kit may be used to seal off the window above the
cooler duct.

4

Blower Motor

Hi
Low
Gnd
Com.

Pump
Motor

Black
Red
Green
White

Wiring Diagrams

Manual Control Remote Control

Ground

Screw

LockPlate

w/ Grommet

Plug Switch

Blower Motor

Hi
Low
Gnd
Com.

Pump

Motor

Black
Red
Green
White

Ground
Wire

Control

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