Essick N3000S User manual

Owner’s Manual

Model No.

N3000S

N4000S

N4500S

N5500S

N6500S

N3100D

N4300D

N4800D

N5600D

N6600D

Less Motor Units

N30S

N40/45S

N55/65S

N31D

N43/48D

N56/66D

READ AND SAVE

THIS INSTRUCTION MANUAL

Side and Down Discharge

Evaporative Air Coolers

70932

Rev. 6/02

Evaporative Cooling

Evaporative cooling uses the principle of evaporation to lower the air temperature. Hot, dry air is passed through wetted

filters and is converted to refreshingly cooled air. Essick Coolers make the best use of the evaporative process by

controlling the flow of water, spreading the water evenly over the filters, and keeping a steady stream of cooled air

entering your home. It is exhausted out open windows or doors, carrying heat, smoke and odors along with it. Essick

evaporative coolers are 80% less costly to operate than refrigerated air conditioners.

Cautions: To prevent harm to yourself and others, and to avoid damage to your cooler, PLEASE follow these guidelines.

SAFETY GUIDE LINES & CAUTIONS

When Installing When Operating When Servicing

Make sure that unit is installed on a sound

structure that will support the full operating

weight of the cooler. See page 3.

Make sure that circuit cooler is wired into is

equipped with a (slow blow) breaker large

enough to support the full amperage of the

cooler.

Always shutoff power to the cooler, at the

breaker, before attempting service of any

kind. If not, it can be turned on from inside

the house and start unexpectedly.

Before attempting to transport the cooler to the

mounting location, plan a safe way to move the

cooler and remove the louvers to reduce weight.

To reduce the risk of fire or electrical shock, DO

NOT use this fan with any Solid-state speed

control device.

Never drain cooler water onto your roof.

Water residue may cause you to slip or may

stain your roof.

Do Not connect power to cooler before

installation is complete.

This cooler is equipped with an automatic

thermally protected motor. If it shuts off on its

own for any reason, it can restart without

warning.

If the motor shuts off because of thermal

overload, check into the problem

immediately. If allowed to continue,

permanent damage will occur.

When servicing or installing, always wear gloves,

protective eyewear, and other applicable safety

gear. Never wear slippery-soled shoes when

working on a roof.

Never use a cooler without connecting it to a

duct system or without a sturdy mesh guard over

the outlet.

Never install or service a cooler during a

storm or high wind conditions.

Tools & Materials Required

1. Pliers

2. Screwdrivers 2. Screwdrivers

3. Adjustable wrenches 3. Adjustable wrenches

4. Tubing cutter 4. Tubing cutter

5. 5/32 hex wrench 5. 5/32 hex wrench

6. Electric drill 6. Electric drill

7. Drill bits 7. Drill bits

8. Hammer 8. Hammer

9. Duct caulking 9. Duct caulking

10. #10 sheet metal screws 10. #10 sheet metal screws

11. Safety glasses 11. Safety glasses

12. Wiring supplies (as required by local electric

codes)

12. Wiring supplies (as required by local electric

codes)

13. Duct, as required. A local sheet metal shop can

supply ducting or it may be purchased as a kit.

13. Duct, as required. A local sheet metal shop can

supply ducting or it may be purchased as a kit.

14. Level 14. Level

15. Air diffuser 15. Air diffuser

16. Equipment suitable for cutting hole in roof or wall 16. Equipment suitable for cutting hole in roof or wall

17. ¼” water line 17. ¼” water line

18. saddle valve or faucet adapter 18. saddle valve or faucet adapter

19. ECR-6 wall switch (6 position) 19. ECR-6 wall switch (6 position)

20. Roof stand (if cooler is roof mounted) 20. Roof stand (if cooler is roof mounted)

Location

1. Your cooler installation must comply with local codes. If you are not qualified to install a cooler, get professional help. 1. Your cooler installation must comply with local codes. If you are not qualified to install a cooler, get professional help.

2. Do not install the cooler near vent pipes, chimneys or exhaust pipes. The cooler will draw in fumes into your house. 2. Do not install the cooler near vent pipes, chimneys or exhaust pipes. The cooler will draw in fumes into your house.

3. The drain fitting in the bottom of the cooler must have adequate room for service access. 3. The drain fitting in the bottom of the cooler must have adequate room for service access.

Side discharge

connected to

duct work

Down discharge

into hall

70932

Rev. 6/02

Roof Jack

Weight

Model Discharge opening

Shipping Operating

N31D 150 245

N30S

13 ¾” x 13 ¾”

115 195

N43/48D 190 325

N40/45S

17 ¾” x 17 ¾”

185 300

N56/66D 211 340

N55/65S

19 ¾” x 19 ¾”

203 375

Flashing

Boxed

Opening

Roof

Kit

Drain

Duct

Drain

Flashing

Duct

Boxed

Opening

Mounting Requirements

1. Prepare duct to fit model used. See chart below for discharge opening sizes of different models.

2. Assemble all tools and materials needed for installation.

3. Cut opening in roof or wall to fit duct (see # 1). Box in opening and reinforce any cut roof joists or wall studs.

4. Install duct and secure to boxed frame. The duct will fit inside the cooler opening. The duct length from roof to bottom

of cooler should be a minimum of 4” at the closest point, so there is access to the water drain. When installing cooler,

face the drain side toward the downhill side of the duct.

5. Install flashing and seal the duct to prevent water entry.

6. Measure and layout mounting location. A good quality roof stand or cooler pad should be used to mount your cooler.

7. Mount cooler to stand or pad. Cooler must be level front to back and side to side.

8. Be sure to securely fasten all four corners of cooler to stand or pad.

9. Caulk duct to the cooler. Ensure roof or wall opening is sealed well.

Duct Work

The most important principle in duct construction is to keep it simple. Complex duct work is expensive. In attics, long

duct work will reduce the amount of cooling your cooler has produced. The most simple and popular system is to run a

straight duct either down from the roof (roof mount) or through a wall into a central hallway. Air is then pulled to other

rooms by means of open windows.

Remember, an evaporative cooler puts out a lot of air, with most applications

exchanging the air in the house every two minutes.

On this page is a simple duct system. The duct itself is a flexible material that can be

easily adapted to any job. Flexible duct is not necessarily good for use with coolers

because the pipe is restrictive, but it is very easy to use. It is expandable and can be

easily routed. It can be cut with scissors or a knife and wire snips. It is easily connected

to existing duct work or directly to a ceiling diffuser.

Remember: the duct work must be the same size or larger than the cooler

discharge. If not the airflow will be restricted, resulting in poor cooling. It is

recommended to oversize flex duct and install a good transition in round duct.

70932

Rev. 6/02

Install Overflow and Drain

Reservoir

Ferrule

Faucet

1. Slide the Rubber Washer over the Drain Bushing and push through the hole in the

bottom of the cooler from the top side.

2. Secure the Drain Bushing from beneath the pan with the Lock Nut. Make sure the

Rubber Washer does not twist while tightening, which could cause it to leak. DO NOT

OVERTIGHTEN.

3. Thread the Overflow Tube into the Drain Bushing and HAND TIGHTEN.

4. If leakage occurs after Reservoir is full, retighten the Overflow Pipe until leaking stops.

A small amount of silicone caulk may be used if necessary.

Float Valve Installation

1. Mount the Float Valve in the hole provided in the Corner Post or in the Float Bracket

attached to the blower.

2. Slip the Fiber Washer over the threaded portion outside the corner post and secure

with the Nut. Be sure the Float does not turn while you are tightening the Nut.

Water Line Connection

Find the closest outside water faucet, and install a Water Connection Kit (not included

with cooler) as shown. If an exterior faucet is not available, locate the closest cold water

pipe and install a saddle valve assembly.

Route tubing to cooler. Place Compression Nut and Ferrule over end of tubing. Insert

the tubing into float valve and tighten Compression Nut to secure. NOTE: Over

tightening a compression fitting will cause that fitting to leak. It is best to secure the

connections, turn on the water, and then snug the fitting until leaking stops.

Adjusting Water Level and Float

• To adjust water level, bend the float valve rod.

• Check all water connections for leaks.

• Make sure the Float Valve cuts off completely when the desired water level has been

reached (½” to ¾” below top of Overflow Tube). If the float does not stop the water

completely, the water level will rise and run out the Overflow Tube.

• Double check the Overflow Tube for leaks.

Motor Mounting

1. Wire motor as shown on page 3. Double check wiring diagram on motor

name plate to ensure proper wiring.

2. Place motor into cradles of motor mount as shown. Be sure motor cradles fit

into grooves in grommets.

3. Secure motor using the saddle clamps.

Operation with Essick 6 position switch (ECR-6)

Switch setting Blower operation Pump operation

Off Off Off

Pump Only Off On

Low Vent Low Off

High Vent High Off

Low Cool Low On

High Cool High On

Mount

Motor

70932

Rev. 6/02

Caution: Disconnect all electrical power at the breaker or fuse box before you begin to install, service or open your cooler

Warning: to reduce the risk of fire or electrical shock, DO NOT use this fan with any solid-state speed control device.

Electrical Connections

1. All wiring must conform to local codes.

2. If this unit is to be controlled by a remote switch, use an Essick 6-position switch (ECR-6) or an equivalent UL switch

with an electrical rating of 120 Volt, 25 Amp and 1 ¼ HP maximum.

3. The junction box is mounted in the corner of the unit. A knock-out is

provided for connecting electrical conduit.

4. All wiring connections must be made inside the junction box. See wiring

diagram below.

Note: If you have a one speed motor, the low speed settings of your switch

will not be operative.

Motor Installation and Adjustment: (IMPORTANT INFORMATION)

Complete the following before you fill the cooler pan with water.

1. Install the motor pulley with the threaded side out.

2. Tighten the set screw opposite the threaded side onto the flat of the shaft.

3. Loosen the set screw on the threaded side of the pulley until that jaw rotates freely.

4. Turn the jaw clockwise until pulley is fully closed, then turn the jaw counterclockwise until the set screw is over the

closest flat spot. This is the fully closed position. closest flat spot. This is the fully closed position.

5. From the fully closed position open the pulley 3 full turns and tighten the set screw. DO NOT tighten the set screw

onto the threads. This will damage the pulley.

5. From the fully closed position open the pulley 3 full turns and tighten the set screw. DO NOT tighten the set screw

onto the threads. This will damage the pulley.

6. Find the amperage on the motor nameplate. 6. Find the amperage on the motor nameplate.

7. Install the louvers and ensure exhaust openings in the structure (usually windows) are open to the required position. 7. Install the louvers and ensure exhaust openings in the structure (usually windows) are open to the required position.

8. Start the cooler on high vent (no pump). 8. Start the cooler on high vent (no pump).

9. Using a clamp-type ammeter, check the motor amperage by clamping the ammeter around the incoming white lead. 9. Using a clamp-type ammeter, check the motor amperage by clamping the ammeter around the incoming white lead.

10. If amperage is less than motor nameplate amps, remove the belt, loosen the adjustment set screw and close the

pulley one full turn. Tighten the adjustment set screw, replace the belt and check amperage again. Repeat as

necessary until amperage reads just under motor nameplate.

10. If amperage is less than motor nameplate amps, remove the belt, loosen the adjustment set screw and close the

pulley one full turn. Tighten the adjustment set screw, replace the belt and check amperage again. Repeat as

necessary until amperage reads just under motor nameplate.

11. If amperage is too high, remove the belt, loosen the adjustment set screw and open the pulley one full turn. Tighten

the adjustment set screw, replace the belt and check amperage again. Repeat as necessary until amperage reads just

under motor nameplate.

11. If amperage is too high, remove the belt, loosen the adjustment set screw and open the pulley one full turn. Tighten

the adjustment set screw, replace the belt and check amperage again. Repeat as necessary until amperage reads just

under motor nameplate.

12. When amperage reads correctly, adjust belt tension as necessary and recheck belt alignment. 12. When amperage reads correctly, adjust belt tension as necessary and recheck belt alignment.

Start Up

Before starting your cooler for the first time, check the following.Before starting your cooler for the first time, check the following.

 Cooler is grounded and all electrical connections are

safe and secure.

 Cooler is grounded and all electrical connections are

safe and secure.

 Cooler is level and duct is sealed.  Cooler is level and duct is sealed.

 Blower wheel does not rub housing.  Blower wheel does not rub housing.

 Water supply is turned on.  Water supply is turned on.

 Drain fitting and water connections are secure and do

not leak.

 Drain fitting and water connections are secure and do

not leak.

 Float is adjusted properly.  Float is adjusted properly.

 Motor amperage is set to manufacturer’s

specifications.

 Motor amperage is set to manufacturer’s

specifications.

 Belt is tensioned properly.  Belt is tensioned properly.

 Pulleys are aligned.  Pulleys are aligned.

 Water flows from the water troughs evenly and pads

wet uniformly.

 Water flows from the water troughs evenly and pads

wet uniformly.

 Check switch operation. See page 3. Check switch operation. See page 3.

COOLER JUNCTION BOX

SPEED

BLOWER

MOTOR

PUMP

WHITE

GREEN

BLACK

RED

BLACK

GREEN

WHITE

FACTORY WIRING

FIELD WIRING

WIRE NUT

NOT FURNISHED

WHITE

with

BLACK

STRIPE

BROWN

RED

341

6 POSITION

SWITCH

GREEN

(TO GROUND)

BLACK

WHITE

WALL SWITCH BOX

120

VOLT

A/C

70932

Rev. 6/02

Trouble Shooting

Problem Cause Remedy

Motor cycles on and off

• Excessive belt tension

• Blower shaft not spinning freely

• Circuit breaker not large enough

• Adjust belt tension

• Lubricate or replace bearings

• Consult a licensed electrician

Fails to start

• No electrical power

• Circuit breaker tripped or fuse blown

• Check all electrical connections and cords

• Reset circuit breaker or replace fuse

Water draining from overflow

• Float improperly adjusted • Adjust float

Blower vibrates excessively

• Belt or pulley loose

• Blower wheel out of balance or out of alignment

• Debris in blower housing

• Adjust belt or tighten pulley

• Replace the blower wheel

• Clear debris

Not cooling

• Blocked water lines

• Windows opened too little or too much.

• Uneven pad wetting

• Pump clogged or failed

• Pads plugged with dirt and water deposits

• Clear incoming water line, float and water distributor of blockages.

• Adjust window openings

• Level water trays, check for blocked water slots in water trays

• Clean pump or replace

• Replace pads

This cooler is equipped with an automatic thermally protected motor. If it shuts off on its own for any reason, it

can restart without warning. If this occurs, check into the problem before permanent damage occurs.

Maintenance

Once a month during cooling season, inspect your cooler for leaks, proper belt tension and

alignment, blocked water lines and excessive residue build-up on the pads.

• To adjust belt tension, loosen the 4 Adjustment Bolts (2 each side) on the Motor Mount. Adjust

belt tension so that 3 pounds of pressure (lightly push with one finger) will cause the belt to

deflect ¾”, as shown. Retighten the Adjustment Bolts.

• Use SAE 20W or SAE 30W non-detergent oil to lube the bearings. Place 2 to 3 drops in the

bearing oil cups at the beginning of the season and no more than once a season during cooling

season. If the motor has oil holes (usually plugged with yellow caps that read “OIL” at either

end of the motor) oil the motor also, following the same procedure as for bearings.

3/4"

Note: Excessive oil in the bearings may leak out and be drawn into the air stream.

Excessive oil in the motor may leak onto the motor windings and damage the motor.

• To replace pads

1. Remove louver from cooler.

2. Unhook pad holders and remove.

3. Remove and discard old pad.

4. Clean water deposits from the louver. If the paint is chipped or rust spots occur sand the

spots and paint with a rust resistant exterior paint.

5. Place new filter in louver and tuck in to prevent hot air from bypassing.

6. Replace pad holders and hook into place.

7. Replace louver in cooler.

Note: It is best to replace filter pads at the end of the season

. Old filter pads soak up lime

and salts that can rust louvers and the cabinet during the wet, rainy winter months.

• At the end of the season

1. Remove the Overflow Tube and let the water drain from the reservoir. (The bushing is

threaded to accept a standard garden hose. If desired, a garden hose may be used to

route water away from your house.) Replace the Overflow Tube when you start the cooler

for the next season.

2. Rinse dirt and debris from the pan and clean any water deposits that may have collected

in the reservoir or on any interior surface of the cooler.

3. If the paint is chipped or rust spots occur sand the spots and paint with a rust resistant

exterior paint.

4. Remove the belt and hang it from the motor pulley.

Note: Do not get water on the Fan Motor or Pump Motor. This will cause damage.

• If freezing weather occurs in your area, it is best to shut off the water supply at the source and drain the supply line to

the cooler.

• A cooler cover is recommended to prevent rain and weather from damaging your cooler.

• To prevent the Shaft from rusting, coat with a wax based lubricant. Allow Lubricant to dry completely and all fumes to

disperse before turning on the cooler.

70932

Rev. 6/02

LIMITED WARRANTY

This warranty is extended to the original purchaser only. It does not cover damages incurred during shipping or

through accident, neglect, or abuse by the owner. Essick Air Products does not authorize any person or representative to

assume any other or different liability in connection with this cooler.

Terms and conditions of warranty

The bottom pan is guaranteed against leakage due to rusting out for five years. All other original parts provided by

Essick Air Products are warranted against defects in material or factory workmanship for One Year.

Exclusions from the warranty

Essick Air Products is not responsible for incidental or consequential damage resulting from any malfunction.

Essick Air Products is not responsible for any damage occurring from the use of water softeners, chemicals, descale

material, or if a higher horsepower motor than what Essick Air Products recommends is used in the unit.

Essick Air Products is not responsible for the cost of service calls to diagnose cause of trouble, or labor charge to repair

and/or replace parts.

How to obtain service under this warranty

Contact the Dealer where you purchased the evaporative cooler. If for any reason you are not satisfied with the response

for the Dealer, contact Customer Service Department: Essick Air Products Inc. 5800 Murray Street, Little Rock, Arkansas

72209. 1-800-643-8341.

No. Description N30S (qty) N40/45S (qty) N55/65S (qty) N31D (qty) N43/48D (qty) N56/66D (qty)

1 Blower cutoff 501583 504294 70568 501583 504280 70568

2 Front panel 70757 70756 504237

3 Pump 506669 506669 506674 506669 506669 506674

4 Pump bracket 504281 504281 504281 504281 504281 504281

5 Float valve 502389 502389 502389 502389 502389 502389

6 Water hose 598401 598474 598472 598474 598474 598472

7 Splash baffle 70256 (2) 70256 (2) 70256 (2)

8 Blower housing 513028 513039 513027 513029 513026 513027

9 Bottom pan 70761 70759 504219 504215 504217 504219

10 Blower wheel 30318 30322 30323 30318 30322 30323

11 Shaft 30241 30238-02 30238-01 30241 30238-02 30238-01

12 Bearing 70926 (2) 60PB (2) 60PB (2) 583000 (2) 60PB (2) 60PB (2)

13 Thrust washer 501244 (2) 501241 (2) 501241 (2) 501244 (2) 501241 (2) 501241 (2)

14 Blower pulley 583009 30314 30314 583009 30314 30314

15 Belt 582093 582085 582088 582086 582085 582088

16 Motor pulley 30315 30315 30316 30315 30315 30316

17 Saddle clamps 524162 524162 524162 524162 524162 524162

18 Motor** 581188 581188/50310 50310/30491 581188 581188/50310 50310/30491

19 Motor cord 595129 595129 595129 595129 595129 595129

20 Float bracket 70413 70413 70413 70413 70413 70413

21 Overflow assembly 70613 70613 70613 70613 70613 70613

22 Tube holder 524304 (3) 524304 (6) 524304 (6) 524304 (4) 524304 (8) 524304 (8)

23 Motor mount 515160 512574 590509 515160 512574 590509

24 Water distributor 512251 512548 512546 512549 512547 512545

25 Top pan 70760 70758 504205 504201 504204 504205

26 Junction box 504265 504265 504265 504265 504265 504265

27 Pump receptacle 595121 595121 595121 595121 595121 595121

28 Motor receptacle 595098 595098 595098 595098 595098 595098

29 Pad retainer (back) 504255 (3) 504256 (9) 504257 (12) 504255 (6) 504256 (12) 504257 (16)

* Pad retainer (side) 504253 (6) 504253 (6)

30 Pad set 512558 512561 512563 512560 512562 512564

31 Louver (back) 504260 504285 (3) 504264 (3) 504260 (2) 504285 (4) 504264 (4)

* Louver assembly (back) 70941 70945 (3) 70946 (3) 70943 (2) 70945 (4) 70946 (4)

32 Water tray (back) 504268 504269 (3) 504270 (3) 504268 (2) 504269 (4) 504270 (4)

33 Corner post (w/float hole) 504304 504246 504249 504304 504246 504249

* Corner post (plain) 504303 504245 504248 504303 (3) 504245 (3) 504248 (3)

34 Blower brace 504302 (2) 504296 (2) 504301 (2) 504308 (4) 504289 (4) 504302 (4)

35 Bearing support 70925 70924 70923 70925 70924 70923

36 Pump basket 70801 70801 70801 70801 70801 70801

* Louver (side) 504258 (2) 504258 (2)

* Louver assembly (side) 70940 (2) 70942 (2)

* Water tray (side) 504266 (2) 504266 (2)

* Set collar 524330 524331 524331 524330 524331 524331

*-not shown

**Motor sold separately

Quantity 1 unless otherwise shown.

70932

Rev. 6/02

Louver assemblies include louver, water tray, pad and pad retainers

Replacement Parts

Cooling Your Home

Your cooler and doors, windows, or vents make up the

two parts of your air cooling system. You control the

airflow to your rooms by opening doors, windows, or

vents. You must have door, window, or vent openings to

let air out when your cooler is running. The total opening

amount of open area you need is shown below.

Model Total Open Area

N30S & N31D 6 Square feet minimum

N40/45S & N43/48D 9 Square feet minimum

N55/65S & N56/66D 12 Square feet minimum

Getting The Best Performance From Your Cooler

Your Evaporative Cooler is engineered to give years of

trouble free operation: however, there are ways to

increase the life span and performance of your cooler.

Maintenance

Maintenance is the most important thing you can do to

insure maximum cooling and trouble free operation.

Service your cooler at the beginning of the season and

inspect it several times during the season.

Filter Pads

Change the filter pads at least twice a year. Hard water

areas may require more frequent filter changes.

Bleed Off

A bleed off system is simple, inexpensive and easy to

install. It will greatly reduce the amount of mineral

deposits in your cooler and extend the life of your pads

and your cooler.

Insulation and Attic Vents

An insulated home is much easier to cool. Insulating

ductwork increases cooling efficiency by reducing heat

gain in your duct work. Also, attic vents keep your attic

cooler and makes your coolers job easier and your

house more comfortable.

Shading

Mounting a cooler in the shade or the sun makes little

difference as to temperature of the air produced by the

cooler. However, placing the cooler in the shade will

deny algae the sunlight it requires to grow and may

extend the life of your pads.

70932

Rev. 6/02

Essick N3000S User manual

Related papers

Other documents