Climate RENTAL SOLUTIONS MEC 7 User manual

SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE
OWNER’S MANUAL
EVAPORATIVE COOLER
MODEL: MEC 7, 12 & 20

OWNER’S MANUAL PORTABLE EVAPORATIVE AIR COOLER
Page 2
TABLE OF CONTENTS
INTRODUCTION.....................................................................................................3
SAFETY RECOMMENDATIONS ............................................................................3
UNIT DESCRIPTION...............................................................................................4
PARAMETER LIST .................................................................................................4
WATER SUPPLY SYSTEM .....................................................................................5
COOLING PAD ASSEMBLY...................................................................................6
CONTROL...............................................................................................................8
PARTS LIST..........................................................................................................10
TROUBLESHOOTING..........................................................................................11
WARRANTY..........................................................................................................13

OWNER’S MANUAL PORTABLE EVAPORATIVE AIR COOLER
Page 3
INTRODUCTION
WHY USE EVAPORATIVE COOLERS IN YOUR WORKPLACE?
• Evaporative cooler requires little space, has a low initial cost, is economy and simple to operate and requires
minimal scheduled maintenance.
• Due to the design and construction of the cooling pads, cooling e󰀩ciency is normally maintained near optimum
throughout the life of the pads. (Approximately eight years)
HOW EVAPORATIVE COOLING WORKS
Evaporative cooling is the same process your body uses to cool itself. When you perspire, and air moves across
your skin, a portion of the perspiration (water) evaporates. Evaporation requires heat to change liquid water-to-water
vapor and this heat is taken from your skin, producing the cooling e󰀨ect.
In an evaporative cooler, the cellulose cooling pads take the place of your skin, water instead of perspiration wets
them and a fan moves the air. The air blows across the cooling pads and evaporates moisture. Heat is drawn from
the pads and the air, dropping the air temperature and producing the cooling e󰀨ect. The cooled air is then forced
through a building or space and displaces the warm air out building openings, cooling the surroundings. In addition,
air velocity increases the cooling e󰀨ect as it moves over the skin of people in the airow path.
Evaporative coolers are portable and use the latest technology to provide large volumes of cool air, e󰀩ciently and
inexpensively for cooling small to medium size areas. Simply adding more units can accommodate larger areas. With
proper sizing and application, an evaporative cooler can lower the e󰀨ective air temperature by up to 20°.
SAFETY RECOMMENDATIONS
READ AND SAVE THESE INSTRUCTIONS!
• This is an electric device with moving components. There is the possibility of re, electric shock, or injury to per-
sons. Ensure all the safety recommendations are adhered to in order to minimize this risk.
• Disconnect all power and unplug the unit before you inspect, clean or perform maintenance on the components
of the unit.
• Never reach into the unit when it is running; you could become entrapped by the v-belt or injured by the rotating
fan blades.
• The frame edges may be sharp; do not run your hand along them. Be careful and wear gloves when you reach
under the frame to inspect the PVC pipes and mesh socks.
• A GFCI (Ground Fault Circuit Interrupter) is recommended for use with this product.
• If pads and grates are removed for servicing, they must be replaced prior to operating unit.

OWNER’S MANUAL PORTABLE EVAPORATIVE AIR COOLER
Page 4
UNIT DESCRIPTION
The evaporative cooler is a completely self-contained, portable unit capable of delivering 15 MPH velocity of air with
a temperature drop of up to 20°. The unit is composed of:
• Level-controlled water supply system
• Cooling pad assembly
• Motor-driven fan
• Frame and housing
The bottom is made of high impact poly and holds approximately 40 gallons at normal operating level (about 6" deep).
A oat-operated valve automatically maintains proper water level when the unit is connected to a water supply.
The bottom rests on, and is xed to, a rugged steel support frame. Four casters (2 locking, 2 regular) are attached
to the underside of the steel frame.
A pump draws water from the bottom and discharges it through the vinyl hose to the PVC pipes located above the
cooling pads. The PVC pipes distribute water onto the top of the cooling pads;saturating them. Excess water drips
back into the bottom through the holes in the cooling pad support channels.
The cellulose cooling pads sit in support channels and are held in place by the tray and pad support plate.
The fan draws room air through the cooling pads where it picks up moisture and cools by evaporation. The fan blade
then discharges the cooled air.
PARAMETER LIST
Major technique parameter
Model
MEC12 MEC20 MEC40
Specication
Air Volume (m3/h) 0-12000 0-20400 0-38000
Power (w) 370 370 750
Voltage (V/Hz) 230/50 230/50 230/50
Speed variable variable variable
Water tank capacity (L) 115 200 300
G.W (Kg) 78 105 168
Dimension (mm)
H1560
W1270
D680
H1800
W1600
D780
H2130
W1910
D920
Refrigerated area (m2)100-170 200-230 300-370

OWNER’S MANUAL PORTABLE EVAPORATIVE AIR COOLER
Page 5
WATER SUPPLY SYSTEM
The water can be supplied continuously with an ordinary garden hose by attaching it to the supplied hose adapter to
the ll connection, or it can belled manually.
With a continuous water supply connected, the oat valve in the bottom rises and falls with the water level. A linkage
attaches the oat to the shuto󰀨 valve in the ll connection. As the water level rises to normal operating level (about
5" deep), the oat valve shuts o󰀨 the water supply.When the water level drops, the oat valve reopens to maintain a
normal operating level.
After unplugging the unit, the bottom can also be manually lled with a hose or bucket; if a hose connection is
impractical. Simply remove any of the pad sections and place the hose, or pour the water, directly into the bottom.
When you ll the bottom manually it can be lled to a higher level, but make sure someone monitors the lling
operation to avoid overlling and ooding.
Turn “water ow” to 1 can increase air humidity.
Turn “water ow” to 0 can reduce air humidity.
Note: Water damage due to overlling is not covered by the warranty.
Note: When you run the unit and manually ll it, check the water level frequently so it does not run dry.
Operating the pump without water will damage it or reduce its service life. This is not covered by the warranty.
The cooling e󰀨ect also stops if the pads are dry.