ULINE H-7126,H-7127,H-7128,H-8657, Evaporative Cooler User Manual

: June 7, 2024
: ULINE

Table of Contents

SAFETY
SETUP
GFCI/ELCI
LIQUID LEVEL INDICATOR
OPERATION
MAINTENANCE
STORAGE
TROUBLESHOOTING
FAQ
PAD REPLACEMENT
Documents / Resources
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)

H-7126, H-7127 H-7128, H-8657
EVAPORATIVE COOLER

ULINE H-7126,H-7127,H-7128,H-8657, Evaporative - Cover

NOTE: Proper maintenance is required to keep unit in peak operating condition. See page 4 for Maintenance.

SAFETY

WARNING! Not for use by children.
WARNING! Not for use by persons with reduced physical, sensory or mental capabilities.
WARNING! Review the owner’s manual before use.
To reduce the risk of electric shock, fire or injury:

Do not operate any evaporative cooler with a damaged cord or plug.
Do not run power cord under carpeting or cover with throw rugs, runners or similar coverings. Arrange power cord away from traffic areas to avoid tripping hazards.
Always unplug the power cord to the evaporative cooler before performing inspections or repairs.
Do not step on or roll over power cord with heavy or sharp objects.
Do not operate evaporative cooler unless all evaporative media is securely in place.
Test the GFCI receptacle or breaker monthly to ensure it is functioning properly.
Remove the plug from the electrical receptacle by pulling on the plug, not the power cord.
Operation near open flames or sparks is not recommended.
If operating near open flame or sparks, ensure the pump is continuously running in order to saturate and wet evaporative media.
To prevent damage when cleaning evaporative cooler, ensure water does not get into the motor or electrical system.

The use of extension cords with evaporative cooler is not recommended. However, if use of an extension cord is required, the following must be met:

a. Use properly-grounded 14 AWG or greater for H-7126, H-7127 and H-8657.
b. Use properly-grounded 12 AWG or greater for H-7128.
c. Extensions cord must not exceed 50 ft. in length.
d. Extension cord must be properly grounded.

Evaporative coolers should not be modified in any way (other than repairs made by qualified individuals with manufacturer replacement parts.
If the evaporative cooler is damaged or malfunctions, do not continue to operate it. Refer to Troubleshooting on page 5 or call Uline Customer Service at 1-800-295-5510.

SETUP

UNPACKING
The unit is shipped completely assembled and sitting on a plastic pallet with a large cover box strapped over the unit. Cut the straps and remove the box by lifting it over the unit. Remove pallet and place cooler on a level surface.

CONNECTING THE WATER AND ELECTRICITY
WATER CONNECTION

NOTE: Unit must be in an upright and level position.

After the unit has been thoroughly tested at the factory, a special two-sided brass hose adapter is attached to the water inlet on the side of the unit, which is below the spray bar adjustment and drain valves. A standard garden hose is attached to this brass hose adapter and cinched down to preclude leaks. Visually verify that the hose washer is in position and in good condition.

NOTE: Water supply inlet pressure should be limited to 50 psi maximum.
Once the hose connection is made, water may be turned on to the unit. Water should now be entering through the float valve to fill the sump tank. To verify that connections are secure, visually inspect connections for leaks. Remove the cooling pads. See page 7 for details.

Once the sump tank is filled, the water flow should stop and the inlet connections may now be visually checked for leaks. Pay particular attention to the hose connection into the float valve and the connections into the brass inlet fitting.

All of these inspections have been performed at the factory but shipping may have caused connections to loosen.
The cooling pads may now be replaced. See page 7 for details.

ELECTRICAL CONNECTION

NOTE: Unit must be in upright position with cooling pads installed!
This unit utilizes a single power cord and control switches. Before connecting the plug to an outlet, ensure that there is no standing water where the cord may lie or the operator is standing. The use of separate multiple outlet devices are not recommended.

When making electrical connections, ensure that local and national codes are adhered to. Use only with GFCI protected receptacles.
Please refer to the barcode product label on the side of the unit for specific electrical requirements.
NOTE: H-7128 must be used with a 5-20R outlet.

GFCI/ELCI

These coolers utilize a GFCI (Grounded Fault Circuit Interrupter) or ELCI (Equipment Leakage Circuit Interrupter) to help protect users against ground electrical faults, which prevent some fire and electrical shock hazards. These devices are intended to trip at very low leakage currents.

H-7126, H-7127 and H-8657 use a GFCI, which is built into the power cord
H-7128 uses an ELCI, which is built into the power cord and requires a 5-20R (120V) electrical outlet
The GFCI on H-7126, H-7127 and H-8657 will automatically reset when the evaporative cooler is plugged into an electrical outlet. The ELCI on H-7128 will not automatically reset when the evaporative cooler is plugged into an electrical outlet; the reset button located on the ELCI device must be pressed each time the evaporative cooler is plugged in.

LIQUID LEVEL INDICATOR

LIQUID LEVEL INDICATOR / PUMP SHUTOFF
A liquid level indicator with integral shutoff gives a visual indication of the water level in the evaporative cooler and will shut off the pump once the water reaches a certain threshold. When this occurs, a red light on the control panel will illuminate to draw attention to the low water level condition and alert the user that the pump has shut off. This light may cycle on and off for a few minutes to draw attention to the low water condition as it tries to exhaust the remaining water.

OPERATION

PLACEMENT OF THE UNIT
There are three primary considerations when deciding where to place this unit:

Fresh Air Supply The inlet side of the unit (pad side) must be placed so as to ensure that a smooth, uninterrupted supply of fresh air is available.
Air Pattern The cool air discharged from (fan side) the unit should have a clear area in which to circulate, being as free of obstructions as possible.
Ventilation (Exhaust) There should be a defined place in which the air from unit can be exhausted from the area being cooled. This is to prevent the unit from recirculating air that has already been through the cooling process.

A primary consideration when actually deciding where to place the unit is the direction of the airflow. The unit creates a fan-shaped air pattern that circulates air over a large area. This pattern may be disturbed or broken up by obstacles such as shelves, workbenches, etc. It is important to insure that a clean, unbroken path for the air from the unit is provided to the maximum extent possible.

You may want to raise the unit above any low obstructions in order to increase the overall coverage. When raising the height, ensure that the platform constructed for holding the unit is stable, well constructed and will not allow the unit to tip over. The unit must be level and in the upright position, with casters locked. When supporting with a platform allow for the full weight of a functioning unit by including the weight of the water both in the sump tank and the added weight of the water saturated cooling pads. The total weight could be in excess of 500 lbs. (227 kg.).

When the unit is placed near a wall or other obstruction, it is recommended that a distance of at least 3 feet from any wall or obstruction to the face of the cooling pads.

This allows the unrestricted flow of warm air to the cooling pad side of the unit. If multiple units are used near each other, be sure to aim the unit so that the air flows complement each other. The opposition will negate the airflow and allow an area of dead air to accumulate between units.

FILLING WITH WATER
Once the unit is connected to a water supply, turn on the supply valve that fills the sump tank with water. Once the sump tank is full, the float valve will shut off the supply flow. (50 psi max. inlet water pressure.)

STARTING THE PUMP AND ADJUSTING THE WATER FLOW

CAUTION! Do not run pump when sump is dry.

Once the sump tank is full, move the pump switch to the ON position to turn on the pump.
When first turning on the pump, the level in the sump will drop suddenly and restart the flow of supply water. This is a normal condition, as the cooling pads require a large amount of water for proper wetting.
When the unit is new, the new pads will require an initial ‘breaking-in’ period. This period is required for the pads to begin readily absorbing water. It may require up to a week to achieve maximum efficiency.
It is important that the spray bar is properly adjusted when first starting the water flow in the unit. To increase or decrease the flow use the spray bar adjustment valve on the side of the unit.
NOTE: Evaporative media should appear wet.

STARTING THE FAN

NOTE: Cooling pads must be installed and wet, and caster brakes must be engaged.
Start the fan by turning the fan switch to desired speed. Adjust the speed slowly allowing the fan to obtain its full speed at the low speed before going to meidum and high.
Pads should appear wet; however, cascading amounts of water can actually reduce cooling efficiency. Proper adjustment will prevent problems and increase cooling capacity.
When turning the fan off at the end of the day or week, the pump should be turned off about 15 minutes before the fan to allow the cooling pads to dry. This will increase the life fo the pads.

MAINTENANCE

Very little maintenance is required on the unit. Primary maintenance is cleaning. Keeping the unit clean will do more than any other single item to maintain your unit in peak operating condition.

DAILY MAINTENANCE
Daily, the pump should be turned off approximately 15 minutes before the fan is turned off. This will allow the cooling pads to dry out and help extend their life, minimizing growth of mildew, mold, bacteria and other odor-causing elements.

WEEKLY MAINTENANCE
At the end of the week or at a scheduled time, the unit should be shut down and the sump tank should be drained. Close the spray bar adjustment valve and open the drain valve. A hose may be attached to the drain valve to drain the water to a remote disposal area. Once the drain valve is open, starting the pump will drain the unit. When the pump has removed most of the water a small amount will be left in some areas.

Once the sump is drained and the power disconnected, the pads may be removed for inspection of the sump tank. If the unit is in a dusty environment, dust may collect in the sump tank over time.
Vacuum out dirt and any remaining water using a wet/ dry shop vacuum and wipe clean with a cloth. Inspect and clean the inlet strainer located on the bottom of the pump. Replace pads in correct airflow direction, referring to label on the pads.

MONTHLY MAINTENANCE (OPTIONAL)
Hard water mineral treatment strips are available for purchase under the Uline model number H-6108. Each box contains one four-month supply. Place one hard water mineral treatment strip into the bottom of the reservoir to prevent buildup due to hard water.

STORAGE

Drain all water from the sump tank and clean as above, ensuring that the pads and sump are completely dry.
Roll up power cord and secure it so that it is not rolled over, tripped over or caught in equipment.
Cover the unit completely to prevent dust build up and store in a dry area.

CAUTION! Disconnect power before removing cooling pads from the unit!
NOTE: Power cord may be replaced only by the manufacturer or qualified agent!

TROUBLESHOOTING

WARNING! Turn off all power to the evaporative cooler before attempting to troubleshoot any of the following operating issues. For problems not listed, please contact Uline Customer Service at 1-800-295-5510.

OPERATING ISSUE	POSSIBLE CAUSES	RECOMMENDATIONS
Evaporative cooler fails to start or deliver air.	No electricity to the

evaporative cooler—circuit breaker tripped, GFCI tripped, and/or power unplugged or damaged.
Motor overheated and/or frozen.| Check power reset breaker. Reset GFCl/ELCI, plug in cord, or replace if damaged.
Reconnect motor.
Evaporative cooler starts, but air delivery is inadequate.| Evaporative media side of the evaporative cooler is too close to a wall.
Fan motor failure.
Capacitor failure.| Move evaporative cooler at least three feet from the wall.
Replace fan motor. Replace capacitor.
Water draining from the evaporative cooler.| Seat in float valve leaking. Drain plug not tight.| Replace float valve. Tighten plug.
Knocking, shaking or raffling sounds.| Loose parts.
Fan blade rubbing shroud.| Check and tighten where needed.
Inspect and adjust, or replace fan blade.
Musty or unpleasant odor.| Stale or stagnant water in tank.
Evaporative media is mildewed or clogged.| Drain, flush and clean tank. Replace evaporative media.
Water droplets in the air stream.| Too much water delivered to evaporative media.
Leaking hose.| Make sure evaporative media is properly positioned in the frames and evaporative cooler is level.
Tighten connection or replace hose.

FAQ

Q. What assembly is required?
A. None. Evaporative coolers are ready to use out of the box.

Q. How do I prepare evaporative cooler for storage?
A. Drain the evaporative cooler, dry out the evaporative media, cover the evaporative cooler and store in a dry place.

Q. Evaporative cooler just ran for the first time and there is an unpleasant odor.
A. When installed correctly, the evaporative media products allow complete molecular evaporation of water ensuring a pure, clean stream of air. When new, it is possible that a small amount of aromatic molecules may evaporate along with the water molecules, which could be detected as a slight smell. This scent lessens in time. The product does not, in any way, allow harmful chemicals to be evaporated into the air stream.

Q. My evaporative cooler is not putting out any cool air.
A. First, make sure the water source and electricity source are connected and working. Second, check to see if the evaporative media is damp. If not, adjust the water flow with the water adjustment valve. Third, make sure there is water in the tank. It should be allowed to fill before you turn the pump on.
Q. What is the best environment to produce the most cool air?
A. For optimum performance, the temperature should be 85°F or higher and the relative humidity should be below 75%. However, evaporative coolers will reduce the temperature in almost any environment, making it more comfortable.

Q. How often should evaporative media be replaced?
A. Depending on the quality of maintenance and frequency of use, evaporative media typically last up to five years.

Q. What is the difference between evaporative cooling and misting systems?
A. Misting systems spray a shower of water into the air that will collect on people, objects, equipment, floors, etc. Evaporative coolers use the process of evaporation to produce cooler air, but do not produce a mist.

Q. Where can I buy replacement parts?
A. Replacement parts may be purchased by calling Uline Customer Service at 1-800-295-5510.

Q. What is the amount of moisture produced?
A. An increase in humidity of approximately 5% is produced, depending on the temperature and humidity of the environment. This increase is not noticeable in a ventilated area where the air produced by the cooler is exhausted.

Q. How long will the water supply last in the tank?
A. With no direct water source available, the water will evaporate in a filled tank within ten hours of operation, depending on the water capacity of the evaporative cooler, ambient conditions, temperature and humidity. A water source for refilling the tank is recommended.

Q. Where are the model and serial numbers found?
A. The model number can be found on a metal plate on the outside of the evaporative cooler. Model numbers begin with the letters “PAC.” Serial numbers are all digits.

Q. What if my questions are not answered here?
A. Call Uline Customer Service for assistance at 1-800-295-5510.

PAD REPLACEMENT

Ensure that all water is removed from the unit and all power is disconnected. Remove all impediments to access the component you are checking or replacing.

REPLACING THE COOLING MEDIA (PADS)
The flap must be removed to allow access to the cooling pads. Start with the center pad which should be tilted out from the top and lifted out of the drain trough.
The two pads to either side of the center pad may then be removed in the same manner. To remove the two outside pads, first pull them sideways toward the center of the unit until they clear the side retainer. They may then be removed in the same manner as the other pads.

Locate the set screw in the rear of the unit on the upper right side. (See Figure 1)
Remove set screw and lower front flap to vertical position.
Once the front flap is moved, grasp the right pad and tilt out at a 90° angle. (See Figure 2)
Pull the pad up to remove from unit. Repeat for other pads. (See Figure 3)