WL705 - Water pump Global Water - Free user manual and instructions

Product Type	Water Pump
Model	WL705
Brand	Global Water
Power Source	Electric (110-120V AC, 60Hz)
Power Rating	0.5 HP (373 W)
Max Flow Rate	2500 GPH (9450 L/h)
Max Head	25 ft (7.6 m)
Discharge Size	1 inch NPT
Cable Length	10 ft (3 m)
Dimensions (L x W x H)	8 x 6 x 12 inches (20.3 x 15.2 x 30.5 cm)
Weight	12 lbs (5.4 kg)
Material	Cast Iron and Stainless Steel
Type	Submersible Utility Pump
Maximum Liquid Temperature	140°F (60°C)
Protection Rating	IP68 (fully submersible)
Operation	Automatic with float switch
Maintenance	Regular cleaning of intake screen; check for debris
Safety Features	Thermal overload protection; automatic shut-off
Warranty	1 year limited warranty
Included Accessories	Adapter, manual, and strainer

Frequently Asked Questions - WL705 Global Water

How do I install the WL705 water pump?

Ensure the pump is placed on a level, solid surface. Connect the discharge pipe to the 1-inch NPT outlet. Submerge the pump completely in water and plug it into a grounded outlet. The float switch will automatically activate the pump when water rises.

What is the maximum depth the pump can be submerged?

The pump is rated for submersible use up to 25 feet (7.6 meters) of head. It can be fully submerged, but ensure the motor housing remains underwater during operation.

Can the pump run dry?

No, running the pump dry can damage the motor. The pump has thermal overload protection that shuts it off if it overheats, but avoid dry operation.

How do I clean the pump?

Disconnect power before cleaning. Remove the strainer and rinse it with clean water. Use a soft brush to remove debris from the impeller area. Reassemble after cleaning.

What should I do if the pump doesn't start?

Check the power supply and ensure the outlet is working. Verify the float switch is not stuck in the 'off' position. If the pump is hot, it may have tripped thermal protection; let it cool for 30 minutes.

What size of discharge hose should I use?

Use a 1-inch diameter hose or pipe for optimal flow. Using a smaller diameter will reduce flow rate and may cause performance issues.

Can the pump be used with saltwater?

No, this pump is designed for freshwater only. Saltwater or corrosive liquids can damage the internal components. For saltwater, use a pump specifically rated for marine applications.

How often should I replace the pump?

With proper maintenance, the pump can last several years. Replace if you notice reduced performance, unusual noise, or if the motor fails. Check the strainer and impeller regularly.

Is the pump suitable for sewage or dirty water?

The WL705 is a clean water pump. It can handle small debris like sand but not sewage. For dirty water, use a sewage pump with larger solids handling.

Where can I find replacement parts?

Replacement parts such as impellers, seals, and float switches are available from Global Water or authorized dealers. Check the user manual for part numbers.

USER MANUAL WL705 Global Water

WL705 Ultrasonic Water Level Sensor

01-313 5/4/12.doc

Specifications:

Sensor Range: WL705-003 4" (.33') - 36" (3')

WL705-012 4" (.33') - 144" (12')

WL705-048 15" (1.25') - 576" (48')

Supply Voltage: 10-30VDC (sensitivity reduced below 15 VDC)

Supply Current: 40mA

Averaging Time: 15 seconds

Temperature: -40^irc to +158^irc F Output Current:

4mA, maximum distance

20mA, minimum distance

Connections: Brown +15-30VDC

Blue Ground

Green 4-20mA output (WL705-048)

Black 4-20mA output (WL705-012 & WL705-003)

Operation:

The WL705 sensors use ultrasonic sound waves to determine the distance from the face of the sensor to the surface of the water by timing how long it takes the signal to return. An internal temperature sensor automatically compensates for the temperature related variation in the speed of sound and a 15-second averaging time reduces the affects of turbulence in the water. Note that the sensor must be powered for 15 seconds for the output to stabilize.

Global Water

a xylem brand

In the U.S. call toll free

at 1-800-876-1172

International: 1-979-690-5560

Fax: [phone]

Email: [e-mail]

Visit our online catalog at:

www.globalw.com

Our Address:

11390 Amalgam Way

Gold River, CA 95670

WL705 Ultrasonic Water Level Sensor

01-313 5/4/12.doc

Calibration:

The calibration procedures for recording devices vary. The process requires knowing the output current from the sensor at two different distances, as well as the distance from the sensor to the bottom of the reservoir. The sensor's output current increases as the distance between it and the target gets shorter. Thus, the current is lowest when the water level is zero. Due to the difficulty in calibrating the recording device with actual water levels, a hand held target may be used or the sensor signal can be reflected off a solid flat object at known distances. Measuring the current at two different distances within the range of the sensor would be one calibration method. Divide the difference in the two currents by the difference in distance to get the amount of current per unit of length. Mount the sensor at a distance from the bottom that gives a zero depth reading. The 12^irc width of the beam means the size of the “spot” on the surface of the water gets bigger at greater distances. Maximum accuracy is attained by insuring that the beam hits a flat surface at all times, best achieved by mounting the sensor as close as possible to the surface of the water without exceeding the measurement range.

LED Functions:

Round LED

Displays “Green” when target is sensed, “Red” when target not found/not sensed.

Square LED WL705-003 - Illuminates “Green” when target is sensed and is within the min and max range (4” – 36”)

WL705-012 - Illuminates “Green” when target is sensed and is within the min and max range (4” – 144”)

WL705-048 - Illuminates “Green” when target is sensed but shorter than the minimum distance sensor (<15")

Rectangular LED WL705-003 - Illuminates “Green” when target is sensed and is within the min and max range (4” – 36”)

WL705-012 - Illuminates “Green” when target is sensed and is within the min and max range (4” – 144”)

WL705-048 - Illuminates “Green” when target is sensed but farther than the maximum distance for the sensor (>48' or 576').

Global Water

a xylem brand

In the U.S. call toll free

at 1-800-876-1172

International: 1-979-690-5560

Fax: [phone]

Email: [e-mail]

Visit our online catalog at:

www.globalw.com

Our Address:

11390 Amalgam Way

Gold River, CA 95670