Belt Adjustment - PMI CF2300 Serie Manual De Uso Y Cuidado

Control Circuit Transformer
If required, a control circuit transformer shall be a N.E.C. Class 2
transformer of adequate capacity, installed and protected in
accordance to national and local codes.

Belt Adjustment

CAUTION
: Disconnect all electrical power to the cooler
and insure that belt is not rotating before adjusting belt
tension.
CAUTION:
Never operate unit with pad frames removed.
This will result in an overloaded condition and may
damage the blower motor.
Correct belt tension and alignment is important, proper setup
reduces power consumption and prolongs life of belt and motor.
When installing or adjusting belt, loosen the motor plate mounting
bolts and adjust to proper tension (25 lbs).
Recirculating Pump
CAUTION:
Do not allow pump to fall over and become
submerged; water will damage pump motor.
Install Overflow Standpipe / Drain Line
Install overflow drain bushing in bottom of cooler as follows:
Slide rubber washer over drain bushing.
Push drain bushing through bottom of
cooler, assemble and tighten lock nut.
Screw plastic overflow standpipe into the
drain bushing and tighten snugly (hand
tight) to prevent leakage.
Connect a suitable drain line (copper /
PVC / garden hose) to drain bushing.
Never drain water onto a roof; mineral
build-up or damage to roof may occur.
NOTE: Drain water in accordance with local plumbing codes.
Connect Water Supply
CAUTION: All plumbing installations must comply with
local building and safety codes, and must be performed
by qualified personnel only.
NOTE: Coolers should not be connected to "soft" water systems. Soft
water will accelerate corrosion and decrease the effective life of pads
and cooler cabinet. Connect water line as follows:
A water supply valve should be installed at a convenient location,
to allow the water supply to be turned on and off for servicing or
winterizing. Minimum 3/8" diameter tubing should be used to
provide water to the cooler, larger tubing is recommended if the
distance from the valve to the cooler is greater than 100 feet, then
reduced to 3/8" at the unit.
Install float valve in the bracket provided.
Connect tubing from water supply to float valve. Place
compression nut and ferrule over end of tubing, insert tube into
float valve then tighten compression nut to secure.
Install Bleed-off
To minimize mineral scale "build-up"use the included bleed-off
assembly. Remove the cap from the bleed-off tee; insert the black
tubing and route the tubing through standpipe opening into the drain
line . To prevent siphoning of the water, make sure that the bleed-off
tee is a bove the water level.
4 Industrial Fan Evaporative Cooler - Use and Care Manual