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Installation of Water Wizard™ (optional)
Evaporative Cooling with the Water Wizard™
NOTE
The following instructions are provided for evaporative
coolers equipped with the Water Wizard™ only.
Additional instructions are provided for evaporative
coolers equipped with the auto-drain and fill or
bleed-off.
WARNING
Disconnect and lock-out all power and gas before
performing any maintenance or service to the unit.
Failure to do so could result in serious injury or death
and damage to equipment.
Water Wizard™ Valves
(when provided by manufacturer)
Mfg.
ASCO
Unit
Assm.
Part
Part
Model
Number
Number
Number
DG-
H10/H20
461262 8210G2 Supply
DGX-
852370
H12/H22
383086 8210G34
DGX-H32
(<9000 cfm)
DG-H30
383088 8210G9 Supply
DGX-H32
(≥9000 cfm)
852371
DGX-H35,
383086 8210G34
H38, H42
Part numbers subject to change.
1. Install Normally Closed 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
roof line.
2. Install Normally Open 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. A
trap should be installed in the drain line.
NOTE
Solenoid(s) may be provided by manufacturer (if
ordered) or by others.
CAUTION
Any wiring deviations may result in personal injury or
property damage. Manufacturer is not responsible
for any damage to, or failure of the unit caused by
incorrect final wiring.
®
Solenoid
De-Energized
Diameter Qty.
Type
Position
1/2 inch
Closed
(12.7 mm)
Supply
1/2 inch
Line
Open
(12.7 mm)
Drain
3/4 inch
Closed
(19.05 mm)
Supply
1/2 inch
Line
Open
(12.7 mm)
Drain
To Media
Sump Drain
Roof Line
Trap
Water Wizard™ Installation
3. Wire the Solenoid(s)
Wire the supply line solenoid and drain solenoid as
shown on the unit's wiring diagram in the control center.
4. Wire the Temperature Sensor
If the evaporative cooler shipped separate from the unit,
1
the temperature sensor must be wired. The sensor wire
is bundled inside the discharge end of the evaporative
cooler. Wire the sensor wire to terminals AI2 and AIC on
1
the terminal strip in the unit's control center.
1
The Water Wizard™ start-up must be completed for
proper performance.
1
Pressure Gauge
Manual Supply Valve
Supply Solenoid
(normally closed)
Supply Line Drain Solenoid
(normally open)
NOTE
Direct Spark Ignition Make-Up Air
Factory
Installed
Field
Installed
11
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