Use and Care Manual

3
02-999-1773 – (Rev - )
Electric Power
CAUTION:
This cooler is designed for connection to 120 volt AC, 60
Hz (cycle) power only. NOTE: Improper voltage will void
the pump and/or motor warranties and may cause
serious personal injury or property damage.
This cooler must be plugged into a GFCI protected
receptacle, which has been properly installed in
accordance with all local and national codes. If you are
not sure that the receptacle is GFCI protected, consult
with a qualified electrician.
This cooler is equipped with a power cord having
equipment grounding conductor and grounding plug. Do
not attempt to defeat this safety device by removing the
grounding pin.
GENERAL INSPECTION
Pre-Start-up Inspection Checklist
Before start-up of the cooler motor and pump for the first time, or at
the beginning of each cooling season, make sure all connections
and adjustments have been made.
Cooler is on a level surface, casters locked to prevent
unnecessary movement (prevent spillage).
 Power supply cord is plugged into a GFCI protected
receptacle; cord is secure from accidental damage.
 Drain and float valve installed.
 Water hose connected securely without leaks.
 Water faucet or supply is turned on.
 Float adjusted for proper water level.
 Pad frames and air outlet grille correctly installed.
 Pump impeller turns freely. Remove impeller cover
(see“Cleaning Pump”), and check rotation.
 Blower wheel, shaft, pulley and motor sheave set
bolts/screws are snug. (see figure 4 )
 Motor sheave / Blower pulley alignment is okay; belt tension
is okay (see for instructions).
Start-up Checklist
CAUTION: Never operate unit with pad frame(s) and/or
air outlet grille removed. This will result in an overloaded
condition and may damage the fan motor. The motor and
pump have an internal automatic thermal overload switch
that will shut the motor and/or the pump off if it
overheats! The motor and/or pump can restart
automatically when they cool down.
To verify and check out the cooler installation on initial start-up, the
following procedure should be followed.
 Push “COOL” switch to ON position (pump on).
 Verify that pump starts and pads are evenly wet.
 Open windows, doors or vents in building.
 Push “FAN” switch to LOW position (low speed on).
 Observe that motor starts and runs. Check high-speed
function by turning “FAN” switch to HIGH (high speed on).
 When switching from Low to Hi speed you should pause in
center position (OFF) for 2 seconds to extend motor life.
In case of trouble in any of these stages, refer to the Troubleshooting
Chart on page 6.
Cabinet Inspection Checklist
After initial start-up and during periodic inspections, check for and/or
observe the following: Refer to the Troubleshooting Chart on page 6
if necessary.
 Leaks from water lines, pad frames, cabinet, etc.
 Observe cooler pads for uneven wetting
 Confirm water level setting is correct.
 Verify full, even flow in water distribution system.
 Blower wheel / motor rotates freely.
 Belt condition / tension / alignment.
 Check that set screws on pulleys, blower wheel are tight.
 Check motor mounting and cabinet hardware.
OPERATING INSTRUCTIONS
Guidelines and location
Always make sure that the roll-around unit is operated on a solid,
level surface strong enough to hold its weight (unit can weigh 270 lbs
when full). Make sure the two locking casters have been locked to
prevent the cooler from accidentally moving while in use. Use
caution when rolling the unit to avoid splashing or spilling of water.
Unless the move is for a short distance, it is best to drain the unit,
move it and then refill it in its new location.
Controls
Rocker-type control switches are used
to select the operating mode of the
cooler. These switches control fan
speed (FAN-HIGH/OFF/LOW) and the
pump operation (COOL-ON/OFF).
To eliminate a rush of warm air when
starting the cooler, be sure to turn the
pump (COOL) on for a few minutes
before turning on the blower motor
(FAN) in low or high speed.
Maintenance Schedule
Regular maintenance and periodic inspection is a key to long and
successful service of your Master Blaster Cooler. The cooler should
be serviced at least once a year or more often if required. For
maximum efficiency, longer life and appearance, every two months
during operation, the cooler should be inspected and cleaned.
Note: Do Not Undercoat the Water Reservoir
Your cooler's water reservoir is finished with our Peblar XT®
appliance-type finish. Asphalt-type cooler undercoating will not stick
to it. Undercoating will break free, clogging the pump and water
distributor.
NOTE: Do not use cooler cleaners, cooler treatments or other
chemical additives in this evaporative cooler. Use of any additives or
water treatment other than bleed-off will void your warranty and
impair the life of the cooler.
Before starting any maintenance operation, read all operating and
maintenance instructions and observe all cautions and warnings
thoroughly.
Figure 5