Dankoff Solar SunCentric Series Руководство по установке и обслуживанию

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entric

Pump Installation & Service Manual

Please record your

MODEL #_____

SERIAL #_____

and for your application:

Volts _____

Amps _____

Thank you for purchasing the Dankoff SunCentric

water pump. This pump has been

™

successful in a wide variety of applications since 1989. It will work properly if these

instructions are followed carefully. If you have any questions or problems, please call your

Dankoff dealer, or call the factory. We try very hard to make our products work in all cases.

Please read the label on your pump, and enter the model and serial numbers in the spaces

above. This will help you to obtain parts or service in the future. Some SunCentric models

are used at more than one voltage. Volts and amps for your application will be found by

consulting the performance charts attached to this manual.

Solar Array Sizing for Non-Battery PV-Direct Systems Only

Please follow the specification sheet for power requirements, or ask your dealer or factory

for advice. Do NOT undersize your solar array. A slight under-sizing will cause the pump to

stall, and it may not function at all. (This is not a problem with battery systems.)

Tracking the sun: Your pump can be powered by a fixed array or a tracking array. With a

tracking array the solar array tilts to follow the sun as it travels accross the sky. Centrifugal

pumps loose capacity quickly, as solar intensity and motor speed decrease. Therefore, it is

most economical to use a tracking array with your pump. This will supply maximum power

throughout the day, rather than only at mid-day. Solar trackers are available from your

Dankoff dealer. The most common type is passive. It uses only the motion of fluid and vapor,

and the force of gravity, to tilt the rack. Like your pump, it is simple and reliable.

Weather Protection

Shelter is required. Your motor may overheat if exposed to very hot sun. Rain exposure

will greatly reduce bearing and brush life and will make the motor difficult to repair. If the

pump is to be used outdoors, it must be covered. The pump shelter must have some

opening to allow circulation of air from the outside to prevent overheating of the motor.

Here are some suggestions for outdoor shelters: 1. a curved piece of sheet metal with open

ends (the cover should be twice as long as the pump); 2. a metal barrel cut in half the long

way and placed over the pump; 3. any weatherproof box inverted over the pump; 4. a dog

house set it over the pump with the pipes passing through the doorway.

Damage from sun, rain or water exposure is not covered by warranty.

Freeze protection: The pump must be protected from freezing. Freezing water will crack

the cast iron parts. If the pump can be drained for cold weather storage by removing the