HESSAIRE RM3808D Evaporative Coolers Owner’s Manual

RM3808D Evaporative Coolers

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Specifications:

• Model: HESSAIRE RM4808S
• Power Supply: 110-120V AC, 60 Hz
• Unit Types: Window Unit, Ducted Unit-Side Discharge, Portable
  Models

Product Usage Instructions:

Unpacking and Inspection:

Handle the product carefully and check the packing list to
ensure all items are accounted for. Visually inspect for shipping
damage. File a claim with the carrier if any damage is noticed.

Installation Instructions for Window Models (W48, W38,

W28):

1. Be cautious not to unplug the front switches.

2. Install the unit through the wall or window opening.

3. Secure the unit to the wall/window and support its weight,
   especially when water is added.

4. Level the unit horizontally.

5. Install float and drain valve as per instructions
   provided.

6. Check all water connections.

7. Connect the unit to a 110-120V GFCI receptacle.

Installation Instructions for Portable Models (M28, M38):

1. Place the equipment in a well-ventilated area.
2. Adjust the breaks of the wheels to prevent movement of the
   equipment.

Frequently Asked Questions (FAQ):

Q: What should I do if I notice shipping damage upon

unpacking?

A: Immediately file a claim with the carrier
for any shipping damage observed during unpacking.

Q: Can I use the evaporative cooler near flammable

liquids?

A: It is advised not to operate the product in
areas where gasoline, paint, or other flammable liquids are used or
stored to prevent fire hazards.

Q: How should I handle a damaged power cord?

A: If the power cord is damaged, it must be
replaced by a qualified person to avoid hazards. Do not use the
product with a damaged cord.

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Operating Instructions & Parts Manual Evaporative Coolers
Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or property damage! REtain instructions for future reference.
Hessaire R
Evaporative Coolers
Description The Hessaire® Evaporative Cooler is a natural way to condition the atmosphere. It cools by combining water evaporation with aire movement, through carefully designed and manufactured equipment, providing maximum efficiency and safety. This air conditioning system, in addition to being economical, gives more benefits than other air conditioning systems for homes and businesses. The system does not use refrigerants or compressors; it cools by simply moving air through moist filters. Air temperature drops when a liquid, in this case water, transforms into gas. Humidity is not perceived, since the air in the room is renewed approximately every two minutes, providing a comfortable cooling effect. Continuous air circulation is a vital aspect of the cooling process in this equipment, and gives it a distinct advantage over air conditioning by refrigeration.
Unpacking Handle product carefully and check the packing list to account for all items. Visually inspect for shipping damage. If damaged, immediately file a claim with the carrier.

Window Unit W28/ W38/ W48

Ducted Unit-Side Discharge A38S / A48S / A68S

Ducted Unit-Side Discharge A38D / A48D / A68D

Ducted Unit-Side Discharge (Rigid Media)
RM4808S / RM4812S RM6808S / RM6812S
RM3808S

Ducted Unit-Side Discharge (Rigid Media)
RM4808D / RM4812D RM6808D / RM6812D
RM3808D
Note: Filters not shown (wet media)

Operating Instructions & Parts Manual R

General Safety Information 1. Read all instructions before
operating, installing or fixing the evaporative air cooler.
2. This product operates at 110-120V AC, 60 Hz only
3. Do not use with a damaged cord or plug, and keep the cord away from heated surfaces.
If the power supply cord is damaged, it must be replaced by a qualified person in order to avoid a hazard.
4. Do not insert any foreign objects into the air inlet or outlet, body injury or property damage may occur.
5. Do not operate this product near an open fire, it may ignite and cause fire, resulting in body injury or property damage.
6. Do not operate in areas where gasoline, paint or other flammable liquids are used or stored.

7. Always unplug the power cord from receptacle when the air cooler is not in use, before cleaning, replacing parts, or before moving to another location.
8. Do not plug the cord into electric outlet with wet hands, an electric shock may result.
9. Never attempt to disassemble or alter the product in any way not instructed by this manual. Shock, fire, or body injury may occur.
10. Use only on GFCI protected receptacle.
11. Do not use this appliance in the inmediate surrounds of a bath, a shower or a swimming pool or other liquids.
To reduce the risk of fire or electric schock, do not use this fan with any solid-state speed control device.
Installation Window Models: W48, W38 and W28

NOTE: Be careful not to unplug the front switches.
3. Install the unit through the wall or window opening.
4. Secure the unit to the wall or window and support the weight of the unit if above the ground.
NOTE: The weight of the unit is increased when water is added.
5. Level unit horizontally.
6. Install float and drain valve (see pages 4 & 5).
7. Check all water connections.
8. Connect unit to 110-120V GFCI receptacle.
Installation Portable models M28, M38 1. Set your equipment in a well
ventilated area
2. Adjust the breaks of the wheels to avoid movement of your equioment

Prior to cleaning

3. Install the float valve and overflow

or

other NOTE: To be installed by a licensed

tube (see pages 4 & 5)

maintenance, the air cooler must professional technician.

be unplugged.

4. Plug the water hose with the float

1. Take the measurments of the neck

valve, or add water inside the unit

and open the wall or window

removing one of the walls (filters,

accordingly.

taking care of not wet the motor),

and set it back.

2. Remove the front grill from the unit by unscrewing the bolts.

Connect the equipment (plug) to a

GFCI receptacle of 110-120V

2

Operating Instructions & Parts Manual R

Ducted Models: A68S/D, A48S/D,

A38S/D and RM4808S/D,

RM6808S/D,

RM4812S/D,

RM6812S/D RM3808S/D

NOTE: To be installed by a licensed

professional technician.

Disconnect all power to the evaporative air cooler
1. Install evaporative air cooler in a well ventilated area. A common equation for air flow is for every open area of 1 x 1 feet there should be 500 CFM of injected air.
2. Assure the mounting surface is able to bear the weight of the evaporative air cooler.

NOTE: The weight of the unit is increased when water is added.
3. Confirm the electrical supply is adequate for the requirements of the unit.

The evaporative air cooler must be installed according to all national and local electrical codes. The installation must be performed by a qualified technician.
4. Assure that the mounting surface is level in all directions.
Float Valve Assembly The following parts are included: Float Valve O-Ring Nut 1/4″ hose oppressor Barrel Nut

4. Secure with the plastic nut.
5. Insert 1/4″ water hose into the barrel nut.
6. Insert the 1/4″ plastic hose oppressor.
7. Countersink the hose edge that will be placed up against the float valve shaft.
8. Place the hose edge to the float valve shaft and tighten with the barrel nut.
9. Check for leaks.

1. Remove the float valve and parts 10. Adjust the water level

(listed above) from inside the unit.

requirement for your unit.

2. Push the plastic o-ring onto the threaded shaft of the float valve until snug against the back.

3. Pass the shaft of the float valve through the pre-drilled hole in the unit.

3

Operating Instructions & Parts Manual R

Overflow Tube Assembly
1. Place the rubber washer on the bottom tray aligned with the drain hole.
2. Push the plastic drain piece through the rubber washer and out the drain hole.
3. Screw the overflow tube into the plastic drain piece.
4. Tighten to the unit with the plastic nut from the bottom of the unit.
5. Check for water leakage.

Electrical Connection

Connect the unit to a 110-120~ +/-

10% 60Hz current (wiring diagram,

A l l e l e c t r i ca l page 9). The power supply for the

conne c tions cooler should connected directly to

must comply with federal and the main switch box. Make sure that

local safety regulations and be the power switcher are in the off performed by a quialified position before operating your cooler. professional technician.

If the power

Confirm before initial startup. 1. Cabinet is level.

supply cord is damaged, it must be replaced by a qualified person in order to avoid a

2. Blower spins freely.

hazard.

3. Electrical specifications meet the amperage of the unit.

4. Water supply is stable and no leaks.

4

Operating Instructions & Parts Manual R

Maintenance
Maintenance is important for your cooler to have an effective and long service life. To avoid unnecessary part replacements, keep your unit in good condition. Do not add cleaners, additives or scents to the water, it may reduce the life of your equipement. Do not change the size of the pulleys, it may overload the motor and “burn out” the unit.
Beginning of Season 1. Turn off power to the unit.

Middle of Season 1. Change aspen or RIGID MEDIA
evaporative cool pad if neces-
End of Season 1. Turn off power to the unit.
2. Close the water valve.
3. Remove V-belt.
4. Drain and dry the tray.
5. Lubricate bearings.

6. If you are not going to use your unit for more than 30 days, turn off the main water and power supply.
For units: Rigid Media Units
1. Turn off power to the unit.
2. Remove the bolts and open the
cover 180ª
3. Remove the rear plate.
4. Carefully remove the pieces.

2. Change the aspen or Celdek® 6. Cover the unit. evaportive cool pad. UNIT CLEANING

5. Remove the Rigid Media toward
the rear plate and put aside to dry.

NOTE: Be sure the Celdek® cool pad For units: Window, Ducted Aspen

arrows are in the same direction as the and Mobile Units.

air flow.

1. Be sure to turn off the power

3. Clean the tray, equipment and

supply before performing main-

Clean the Rigid Media with a smooth, plastic brush after the pad is dry.

filters. (See Unit Cleaning)

tenance.

7. Clean the bottom tray.

4. Check the belt condition and 2 Remove the side and back walls of 8. Confirm the float valve is installed

tension. (See drawing page 7)

the cabinet.

properly.

5. Lubricate bearings, as necessary. 3 Completely drain the cabinet by 9. Re- install the RIgid Media by

(Lithium base oil)

removing the drain from the base.

following the arrows on the pad.

6. Open water valve.

4

Using a brush with soft plastic bristles, clean the water tank by

Re-install the pieces into the Rigid
Media pad.

7. Confirm the water distribution is working properly.

removing the dust and accumulated mineral salts (only use water

11. Re-install the rear plate and the

to clean the tank).

cover.

8. Adjust the water float valve if

needed.

5 Put the drain back into its original

9 Start the unit.

position. Make sure there are no leaks.

5

Operating Instructions & Parts Manual R

WATER PUMP 1. Turn off the power to the unit.
2. Remove shipping lock on pump body.

2. Remove the dirty filters.
3. Clean the wall body and the upper channel. Use water and a soft bristle brush only.

3. Remove the bottom base plate to 4. Place the new filters into the walls.

clean pump cavity when clogged.

Make sure that the filters are well

moistened before putting them

4. Clean pump filter when clogged by

into place.

using soft bristle brush to remove

accumulated dust and scaling.

5. Place the supports into their

original position once maintenan-

NOTE: Never remove the screen, as

ce has been performed.

removal may cause contaminants to

obstruct pump.

NOTE: Never operate the unit without

these parts in place. Doing this could 5. Re-install base plate by following generate an overload and damage the
sequence numbers on the bottom motor.

of the plate.

BELT ADJUSTMENT

6. Remove water pump from cooler The adjustable belt and pulleys are

during the winter and store in a dry factory set. Any alteration to the air

place.

flow system should be done by an

authorized technician. Before any

CHANGING THE FILTER/ WET adjustment is made, unplug the MEDIA (ASPEN / RIGID MEDIA) cooling system.

1. Using pliers, unbend the points of

the supports and remove them The appropiate belt tension and

from the wall.

alignment is an important factor for

the efficient operation of the unit. Do not adjust the belt tension by changing the pulleys diameter. Adjust the brackets that hold the motor to the motor base only. Due to wear and use, the belt tends to loosen, therefore, chech for proper tension during maintenance.
To adjust the belt tension, loosen the screws on the motor brackets (use a 7/16 inch or an adjustable wrench). Once loosened the motor can then be repositioned to apply more tension to the belt. Belt tension should be adjusted to allow for 1.2 cm (1/2″) to 2 cm (3/4″) of flexing on each side of pulley. Once the required belt tension is reached, retighten set screws on the bracket. Align the belt in vertical position, and check the amperage of the motor.

6

Operating Instructions & Parts Manual R

PULLEY ADJUSTMENT Incorrect pulley adjustment and alignment will affect performance by reducing airflow raising amperage or causing motor to overheat.
Before make any adjustments deenergize your equipment to avoid personal risks.

sure it misses the turbine box and that the motor pulley does not make contact with the motor.

3. Add 15 to 20 oil drops for electric motor or SAE grade 10, and turn the shaft.

Motor maintenance

Lubricating bearings

Always

de-

energize your cooler before working near or in

Always deenergize your

the motor.

cooler before any maintenance.

To adjust pulleys loosen the set screw and align the motor pulley with the turbine pulley vertically by moving outwards or inwards on the shaft of the motor. A straight edge should be used when aligning pulleys. After adjustment retighten set screws. Turn the turbine pulley manually to make

1. The motor can require periodical maintenance to avoid overheating due to dust accumulation on the windings and frame.
2. Lubricate the motor annually after fisrt year of use to extend bearings life.

1. Add 6 drops of lithium oil or grease with lithium base. 2. Do this maintenance two times per year.

7

Operating Instructions & Parts Manual R
Electrical Diagram Models W28 & M28
Electrical Diagram Models W48, W38 & M3
8

Operating Instructions & Parts Manual R
Models RM4808D, RM4812D, RM6808D, RM6812D, RM4808S, RM4812S, RM6808S, RM6812S, A38D, A48D, A68D, A38S, A48S, A68S, RM3808S/D (ducted units, side and down discharge)
9

Operating Instructions & Parts Manual R

Symptoms Unit does not start
Cooling/ Excessive humidity
Motor shuts off Water leaking from unit
Inside Noises Unpleasant smells

Possible Cause 1. Unit does not have electricity.

Corrective Action 1. Check the electrical.

2. Blown fuse. 3. Switch is disconnected.

2. Change the fuse. 3. Re-connect switch.

4. Motor is overheated. 5. Wiring failure/ short circuit.

4. Call an authorized technician. 5. Consult with an electrician.

1. Front grill is not oriented correctly. 1. Correct the orientation of the grill.

2. Filter is not wet.

2. Check water distribution hose and pump for leaks or bends.

3. Filter is full of dust or mineral salts.

4. Water distributor clogged.

4. Change water distributor.

5. Water pump is not working. 6. Motor overload.

replace pump. 6. Call an authorized technician.

1. Motor shaft is forced.

1. Call an authorized technician.

2. Tight belt.

2. Adjust belt tension.

3. Popeller not centered.

3. Call an authorized technician.

1. Float valve adjusted incorrectly.

1. Correct position of valve and ad-

2. Drain not tightened.
2. Propeller is not aligned. 3. Loose pulleys 1. Stangant water in tank 2. Filters are full of dust.

2. Tighten the drain. 1. Lubricate bearings. 2. Call an authorized technician. 3. Adjust and tighten pulleys. 1. Drain, wash and clean the tray.

Water leaving by the front grill

1. Filters too much wet (damp)

obstruct partially the internal water hose.

10

Operating Instructions & Parts Manual R

W48, W38 and W28

Ref No.

Description

Qty

1

Bearings

2

2

Turbine Pulley

1

3

Motor & Pump Receptacles

1

4

Water Distributor

1

5

Motor Plug

1

6

Float

1

7

Motor

1

8

Adjustable Pulley

1

9

Water Pump

1

10

1

11

Water Hose

1

12

Motor & Pump Switches

1

13

Front Grill

1

14

Filter

1

15

V-Belt

1

11

Operating Instructions & Parts Manual R

A68D, A68S, A48D, A48S, A38D, A38S

Ref No.

Description

Qty

1

Bearings

2

2

Turbine Pulley

1

3

Motor & Pump Receptacles

1

4

Water Distributor

1

5

Motor Plug

1

6

Float

1

7

Motor

1

8

Adjustable Pulley

1

9

Water Pump

1

10

1

11

Water Hose

1

12

Filter

1

13

V-Belt

1

12

Operating Instructions & Parts Manual R

RM4808S/D, RM48125/D, RM6808S/D, RM6812S/D

Ref No.

Description

Qty

1

Bearings

2

2

Turbine Pulley

1

3

Motor & Pump Receptacles 1

4

Water Distributor

1

5

Motor Plug

1

6

Float

1

7

Motor

1

8

Adjustable Pulley

1

9

Water Pump

1

10

1

11

Water Hose

1

12

Celdek ®

1

13

Doors

2

14

Cutter

1

15

Wet Module Sideways

2

16

Thermoformed Tray

1

17

Celdek® Base

1

18

Land Fill

1

19

Protective Mesh

1

20

Motor Base

1

21

V-Belt

1

13

Operating Instructions & Parts Manual R

M38

Repair Parts List for M38

Pcd Lm

Description

Qty

1

Filter

1

2

Water Pump

1

3

Turbine pulley

1

4

Motor pulley

1

5

Water Distributor

1

6

Front grill

1

7

Motor

1

8

Bearings

2

9

Water hose

1

10

Motor & pump receptacles

1

11

Float

1

12

1

13

Motor Plug

1

14

Motor & pump switches

1

15

V-belt

1

14

Operating Instructions & Parts Manual R

M28

Repair Parts List for M28

Pcd Lm

Description

Qty

1

Filter

1

2

Water Pump

1

3

Water distributor

1

4

Front grill

1

5

Motor assy

1

6

Water hose

1

7

Motor & pump receptacles

1

8

Float

1

9

/

10

Motor plug

1

11

Motor & pump switches

1

15

Operating Instructions & Parts Manual
R
LIMITED WARRANHessaire® EVAPORATIVE COOLER MODELS COVERED IN THIS MANUAL, ARE WARRANTED BY USASIA, LLC. TO THE ORIGINAL USER AGAINST DEFECTS IN WORKMANSHIP OR MATERIALS UNDER NORMAL USE FOR ONE YEAR AFTER DATE OF PURCHASE. ANY PART WHICH IS DETERMINED TO BE DEFEC TIVE IN MATERIAL OR WORKSHIP AND RE TURNED TO AN AUTHORIZED SER VICE LOCATION, USASIA, LLC WILL DESIGNATE REMEDY, REPAIR OR REPLACEMENT. FOR LIMITEED WARRANT Y CLAIM PROCEDURES, SEE “PROMPT DISPOSITION” BELOW. THIS LIMITED WARRANTY GIVES PURCHASERS SPECIFIC LEGAL RIGHTS WHICH VARY FROM JURISDICTION TO JURISDICTION. LIMITATION OF LIABILIT Y. TO THE EXTENT ALLOWABLE UNDER APPLICABLE LAW, USASIA’S LIABILIT Y FOR CONSEQUENTIAL AND INCIDENTAL DAMAGES IN EXPRESSLYDISCLAIMED. USASIA’S LIABILIT Y IN ALL EVENTS IS LIMITED TO AND SHALL NOT EXCEED THE PURCHASE PRICE PAID.
WARRANTY DISCLAIMER. A DILIGENT EFFORT HAS BEEN MADE TO PROVIDE PRODUCT INFORMATION AND ILLUSTRATE THE PRODUC TS IN THIS LITERATURE ACCURATELY; HOWEVER, SUCH INFORMATION AND ILLUSTRATIONS ARE FOR THE SOLE PURPOSE OF IDENTIFICATION, AND DO NOT EXPRESS OR IMPLY A WARRANT Y THAT THE PRODUC TS ARE MERCHANTABLE, OR FIT FOR A PARTICULAR PURPOSE, OR THAT THE PRODUC TS WILL NECESSARILY CONFORM TO THE ILLUSTRATIONS OR DESCRIPTIONS, EXCEPT AS PROVIDED BELOW, NO WARRANTY OR AFFIRMATION OF FACT, EXPRESSED OR IMPLIED, OTHER THAN STATED IN THE “LIMITED WARRANTY” ABOVE IS MADE OR AUTHORIZED BY USASIA.
Technical Advice and Recommendations, Disclaimer. Notwithstanding any past practice or dealings or trade custom, sales shall not include the furnishing of technical advice or assistance system design. USASIA assumes no obligations or liability on account of any unauthorized recommendations, opinions or advice as to the choice, installation or use of products.
Product Suitability. Many jurisdictions have codes and regulations governing sales, constrution, installation, and/or use of products for certain purpooses, which may vary from those iin neighboring aeras. While aattempts are made to assure that Dayton products comply with such codes, USASIA cannot guarantee ce compliance, and cannot be responsible gor how the product is installed or used. Before purchase and use of a product, review the product applications, and all applicable national and local codes and regulations, and be sure that the product, installation, and use will comply with them. Certain aspects of disclaimers are not applicable to consumerproducts; e.g., (a) some jurisdictions do not allow the exclusion or limitation of indicental or consequential damages, so the above limitation or exclusion may not apply to you; and (c)by law, during the period of this Limited Warranty, any implied warranties of implied merchantability or fitness for a particular purpose applicable to consumer products
Prompt Disposition. A good faith effort will be made for prompt correction or other adjustment with respect to any product which proves to be defective within limited warranty. For any product believed to be defective within limited warranty, first write or call dealer from whom the product was purchased. Dealer will give additional directions. If unable to resolve satisfactorily, write to USASIA, LLC at address below, giving dealer’s name, address, date, and number of dealer’s invoice, and describing the nature of the defect. Title and risk of loss pass to buyer on delivery to common carrier. If product was damage in transit to you, file claim with carrier.

References

• pad.re
• Repair Your Grill: Shop Replacement Parts for 24,880 Models
• Hessaire Evaporative Cooler Parts - Select From 31 Models

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