Greenheck IG / IGX (464104 IOM) (Pre-2009) - Manual (Page 24)

24
Installation - Evaporative Cooling Piping (Optional)
Evaporative Cooling with Bleed-Off
IMPORTANT!
The supply line should be of adequate size and
pressure to resupply the amount of water lost
due to bleed-off and evaporation. The drain line
should be the same size or larger than the
supply line.
NOTE!
The following instructions are provided for evaporative coolers with bleed-off only.
Additional instructions are provided for evaporative coolers equipped with the Water Wizard
or auto-drain and fill.
Step 1 Install the Water Supply Line
Connect the water supply line to the float valve in the evaporative cooling unit. Install a manual shutoff valve in
the supply line as shown above.
Step 2 Install the Drain Line
Connect an unobstructed drain line with a manual
shut-off valve from the sump drain to the main drain
line as shown above. A trap should be used to
prevent sewer gas from being drawn into the unit.
6 in. min.
6 in. min.
Supply
Line
Overflow
Trap
Drain Line
Valve
Drain
Line
Supply Line
Valve
CAUTION!
All solenoids, valves and traps must be installed
below the roof to protect the water supply line
from freezing. If they cannot be installed below
the roof, an alternative method must be used to
protect the lines from freezing
Installation