S.O. ltd SO3500-JC User manual

Model SO3500-JC
Indoor and Outdoor Evaporative air
cooler
OWNER’S MANUAL
READ AND SAVE THESE INSTRUCTIONS
Read all instructions carefully before setting up and
operating this unit. This manual is designed to
provide you with important information needed to
setup, operate, maintain, and troubleshoot your
cooler. Failure to follow these instructions may
damage and/or impair its operation and void the
warranty.
Tandem Centrifugal Blowers
Powerful AIR FLOW

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CONTENT
PLEASE READ CAREFULLY AND KEEP THIS INSTRUCTION MAUNAL FOR FUTURE
REFERENCE.
SECTION: PAGE
INTRODUCTION................................................................................................................................3
TECHNICAL SPECIFICATIONS........................................................................................................3
WARNINGS AND SAFETY RULES...................................................................................................4
PARTS DESCRIPTION ......................................................................................................................5
ASSEMBLY INSTRUCTIONS............................................................................................................7
USE & OPERATION
Connect Water Supply .................................................................................................................7
Start-up Check List ......................................................................................................................8
Control Panel ...............................................................................................................................8
Remote Control............................................................................................................................9
CLEANING & MAINTENANCE .......................................................................................................10
ELECTRICAL...................................................................................................................................12
TROUBLE SHOOTING GUIDE .......................................................................................................13

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INTRODUCTION
Evaporative cooling works on the principle of heat absorption by moisture evaporation. Simply put,
heat is removed from the air as water evaporates. You feel this principle in action when you step
out of a swimming pool; you feel immediately cooler as water evaporates from the surface of your
skin.
Your evaporative cooler works on the same principle. Hot outside air is pulled through
water-saturated pads, where the airs is cooled by evaporation and then discharged from the cooler.
The SO 3500-JC is ideal for using in patio and other outdoor application. The appliance can be
used as an evaporative cooler, air cleaner and humidifier.
As the air passes through the water filter, particles in the immediate area are captured and filtered
out of the air.
There are 3 speeds for variable air distribution. A programmable timer for 1 to 8 hours and digital
remote control included.
TECHNICAL SPECIFICATIONS
Voltage 120V
Frequency 60Hz
Wattage 450W
Max airflow 6000 m3/h
Fan type Centrifugal
Water consumption 3-5 L/h
Water storage capacity 32L
Filter material Honeycomb

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WARNINGS AND SAFETY RULES
READ AND SAVE THESE INSTRUCTIONS:
•Your cooler will run on 120 Volt AC, 60 Hz current only.
•Check the household voltage to ensure it matches the appliance’s rate specification.
•Can be used indoors and outdoors.
•DO NOT operate any product with a damaged cord or plug.
•Always unplug the product before refilling the water tank through the ‘water fill door’.
•Always unplug the product when moving it.
•Disconnect the power supply before servicing or cleaning operation.
•Remove the power cord from the electrical receptacle by grasping and pulling on the plug only,
never from the cord.
•DO NOT insert or allow objects to enter any ventilation or exhaust opening as this may damage
the product and could cause an electrical shock or fire.
•DO NOT use the product in areas where gasoline, paint or other flammable goods and objects
are stored.
•When using the ‘’Cool’’ setting, please check the water tank to ensure it is full. Operation of
this unit on the ‘’Cool’’ setting on an empty tank could result in damage to the water pump.
•DO NOT attempt repair or adjustment to any electrical or mechanical functions of the cooler, as
this may void the warranty.
•Please check that the voltage in the area to be cooled is correct for the air cooler specification.
Incorrect voltage will burn out the blower/fan, oscillating and/or pump motor windings and will
void the warranty.
•DO NOT cover the air inlet or outlet on the appliance as this may cause motor damage.
•DO NOT operate with element removed.
•DO NOT operate unit near open containers of flammable liquids.
•DO NOT use this fan with any solid-state speed control device.
•Always unplug the appliance from the power source before servicing or removing the unit.
•Do not leave the appliance operating unattended for any extended period of time.
•This appliance is not intended for use by persons(including children) with physical disabilities
unless they are supervised or have been given proper operating intructions.
•Do not let children play with any appliance packaging or plastic bags.
•Place power cord away from areas where it may cause persons to trip.
•When not in use always store in a dry area.
•Do not use this unit with any solid-state speed control device
•If the unit is damaged or it malfunctions, do not continue to operate it. Refer to the
troubleshooting section and /or please call customer service or S.O.Ltd for assistance.

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PARTS DESCRIPTION
Front:
1. Top Panel
2. Air Outlet
3. Remote Control Place
4. Control Panel
5. Cord Wrap
6. Power Cord
7. Water Tank
8. Castors
Back:
1. Air Filter
(Dust Filter & Honeycomb Filter)
2. Water Fill Door
3. Connection to Garden Hose
4. Drain Plug

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Inner:
1. Water Pump
2. Float Ball
3. Copper Rod
4. Overflow Standpipe
Accessories:
1. Remote Control and its Bracket
NOTE: 2 x AAA batteries are required for remote control, but are not included.
2. Hardware Parts for Garden Hose Connection
NOTE: Garden hose are not included.
3. Two pieces of Dust Filter

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USE & OPERATION
Connect Water Supply:
You can fill up the water tank by:
1) Fill fresh water to the tank thru the ‘water fill door’ located on the side panel.
Fill water tank as follows:
1. Plug in the unit onto the ‘’standby’’ mode.
2. Press to open the ‘’water fill door’’ and fill in
water manually.
3. You will hear siren for 5 seconds when water
reaches the maximum water level mark.
4. When water reaches max level, stop filling in
water and close the ‘’water fill door’’.
2) Connect the garden hose to ‘garden hose connection part’ for water in-let.
Fill water tank as follows:
1. Turn water supply on. Check for good
pressure and flow from float valve.
2. When float valve shuts off, check water
level. Water level should be from 1/2”
below top edge of overflow standpipe.
3. Turn on water and adjust float valve by
bending the rod, if required.
4. Float valve will turn off water supply
when water reaches maximum water
level mark.
NOTE: When COOL mode is turned on, if water level is below minimum water level mark, the water
pump will stop operation; 'COOL' LED indicator will flash.

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Start-up Check List:
To check out installation and initial start-up procedure should be followed:
1. Turn electrical supply on.
2. Press COOL button to check that pumps starts and pad is evenly wet
3. Start blower by pressing FAN button.
4. Check for cool air delivery. (An aroma of damp wood will be present during initial use of new
pads.)
In case of trouble in any of these steps, refer to the Troubleshooting chart.
Control Panel:
Power: Press the button to turn the unit on. To turn the unit off, press the button again.
The cooler will start automatically at medium speed, after a few seconds the speed
will switch to low.
Speed: Press the button to change speed. The indicator light will show the selected speed.
Cool: To begin cooling the desired area, press the ‘’Cool’’ button until the indicator light is
on. The water pump will begin to wet the pad. You should begin to feel cooler air
within three minutes, when the pad is completely wet.
Swing: (a) Press the ‘’Swing’’ button to start air from right to left direction.
(b) Manually adjust the horizontal louvers upward or downward air direction.
Timer: (a) Press the ‘’Timer’’ button until the indicator light comes on and is set to desired
hour. Once the set hour has elapsed, the unit will automatically shut off.
(b) The timer function allows you to program the unit for up to 8 hours of use. There
are eight indicators underneath the TIMER button. Each light indication
represents 1 hour timer setting.
WARNING: Do not operate the appliance unless all panels are securely in
place.

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Remote Control:
Power: ON / OFF
Speed: LOW / MEDIUM / HIGH
Cool: Control cooling or fan option
Swing: Control the motion of the vertical louvers
Timer: Control timer function for automatic shut off

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CLEANING & MAINTENANCE
Changing or Cleaning the Filter / Pad:
WARNING: Unplug and disconnect the cooler from the power source
before attempting any maintenance or service.
Your cooler pads should be changed at least twice a year, at the beginning of a season and midway
through. But your pads may need to be changed more frequently, depending on local air and water
conditions. For instances, in areas where mineral content of the water is high, deposits may build
up in the cooler pads, restricting air flow.
Cleaning the Water Tank:
To clean the water tank:
Remove the drain plug located at the bottom of the unit.
Once the water tank is empty, replace the drain plug, refill the unit and
drain it again.
Repeat this cleaning weekly to reduce water mineral build up.
Replace the drain plug; refill with fresh water through water-inlet hose,
cooler is ready for use.
TIP:
Regular draining (once a week during use) will decrease the water mineral
build up and extend the life of the filter / pad. Damp a cloth with water and
wipe away any water mineral deposits that appear inside or outside the
appliance to extend the serviceable life and clean appearance of the appliance.
Cleaning the Appliance:
Step 1:
Screw off the two screws at the top of the cooling pad. Hold the
louver above the cooling pad, drag the cooling pad gently, and pull
up slightly to put off the cooling pad for cleaning.
Step 2:

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Caution:
Don’t use the water with high pressure, when clean the element. Do not
use acidic or alkaline based detergents when cleaning the paper
elements.
Step 3:
Dust filter screens can be cleaned once a week.
Step 4:
Cleaning method:
1. Use a damp cloth or soft sponge with mild soap/detergent to wipe the unit clean.
2. Wash off dirt on the float valve and copper rod with damp cloth.
3. Wash off dirt on the water pump and overflow standpipe with soft brush.
ELECTRICAL

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Electrical Wiring Diagram:
Electrical wiring on your unit is not required as the unit has been wired at the factory. For your future
reference, the wiring diagram in Figure shows rocker switches, two-speed motor, capacitor and
pump.
Switches: POWER; SPEED; COOL; SWING and TIMER, are located on the electronic panel”
PCB”.
Class A insulated motor.
The blower motor comes equipped with thermal overload protection.

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TROUBLESHOOTING GUIDE
Malfunction
Reason
Methods
1. The indicator doesn’t
light.
1. No power.
2. Master control board goes
wrong.
3. Fuse is burnt.
4. Panel goes wrong.
1. Check the circuit.
2. Change the master control
board.
3. Change fuse.
4. Change the panel.
5. Call customer service.
2. Out of control.
1. Interfered by power;
2. Interfered by
environment;
3. Panel goes wrong..
1. Power off.
2. Remove or keep far away
from the interference.
3. Change the panel.
4. Call customer service.
3. Display normal, but
without wind or the wind
speed is too low.
1. The fan gets struck.
2. Water screen or dust-net
is blocked.
3. Fan is distorted.
4. Master control board goes
wrong.
1. Check the machine, fixing
hoop and fan.
2. Clean or change water
screen or dust-net.
3. Change fan.
4. Change the master control
board.
5. Call customer service.
Note: The form is only for reference. If any help, please call customer service.