Greenheck Fan 470658 MSX manual Installation of Water WizardTM optional, Wire the Solenoids

Installation of Water WizardTM (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 Greenheck)

Unit	Assembly	GFC	ASCO	Solenoid	De-
Model	Number	Part	Part No.	Type	Energized	Diameter	Qty.
		No.			Position
MSX -		461262	8210G2	Supply	Closed	1/2 inch	1
						(12.7 mm)
H12/H22
MSX - H32	852370			Supply		1/2 inch
		383086	8210G34	Line	Open		1
						(12.7 mm)
(<9000 cfm)
				Drain
MSX - H32		383088	8210G9	Supply	Closed	3/4 inch	1
						(19.05 mm)
(≥9000 cfm)	852371
MSX-H35,				Supply		1/2 inch
		383086	8210G34	Line	Open		1
H38, H42						(12.7 mm)
				Drain

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 Greenheck (if ordered) or by others.

Caution

Any wiring deviations may result in personal injury or property damage. Greenheck is not responsible for any damage to, or failure of the unit caused by incorrect final wiring.

To Media

	Pressure	Factory
	Gauge
		Installed
	Sump Drain
	Manual Supply
	Valve
Roof	Supply Solenoid
Line	(Normally Closed)
Trap	Supply Line Drain Solenoid	Field
	(Normally Open)	Installed

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, 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 the terminal strip in the unit’s control center.

Note

The Water Wizard™ start-up must be completed for proper performance.

12 Model MSX Make-Up Air ®