Greenheck DGX Installation, Operation And Maintenance Manual page 14

Installation - Water Wizard™ (Optional)
Evaporative Cooling with the Water Wizard
WARNING!
Disconnect and lock-out all power and gas before performing any maintenance or service to the unit.
Failure to due so could result in serious injury or death and damage to equipment.
Step 1 Install Supply Line/Solenoid
Connect the water supply line to the manual supply valve in the unit. Install the supply solenoid in the supply
line, upstream of the manual supply valve and below the roofline. See figure #28.
Step 2 Install Drain Line/Solenoid
Connect the drain line to the supply line between the manual supply valve and the supply solenoid. Install a
drain solenoid in the drain line, below the roof line. See figure #28.
To Media
Pressure
CAUTION!
Gauge
Any wiring deviations may result in personal injury
Sump
or property damage. Greenheck is not responsible
Drain
Manual
for any damage to, or failure of the unit caused by
Supply Valve
incorrect final wiring.
Roof
Line
Supply
Solenoid
Step 3 Wire the Solenoid(s)
Wire the supply solenoid to terminals X and 25. Wire the
drain solenoid to terminals X and 26.
Drain Solenoid
Trap
Figure 28. Water Wizard Installation
Step 4 Wire the Temperature Sensor (Optional)
If the evaporative cooler shipped separate from the unit, the temperature sensor must be field wired. The sensor
wire is bundled inside the discharge end of the cooler. Wire the sensor wire to terminals AI2 and AIC on the
terminal strip in the unit's control center.
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