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Solar Controller

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Product Details

SR11L Series Solar Hot Water Pump Station with Integrated controller SR258 Max. permitted pressure 6 bar 1-20L/Min flow

1. Solar pump station with integrated controller

Integrated controller ,Outstanding design ,Safety assembly with safety valve,High-Quality casing for reduction of heat loses ,Flow rate checked

1.1 Scope of delivery

1* solar pump station

1* integrated solar controller SR258

1* wall mounting bracket

1* accessory bag

1* manual

1.2 About this manual

This solar pump station is a preinstalled and leak-tested group of fitting for transferring heat from the collector to the store. It contains important fittings and safety devices for the operation of the solar thermal system:

Ball valves in flow and return in combination with check valves to prevent gravity circulation.

Air stopper for manual bleeding of the solar thermal system

Electronic flow rate check for displaying the flow rate

Manometer for displaying the system pressure

Safety valve to prevent inadmissible overpressure

Flushing and filling unit for flushing, filling and emptying the solar thermal system.

1.3 Safety instructions

The installation and commissioning of the solar station as well as the connection of electrical components requires technical knowledge commensurate with a recognized vocational qualification as a fitter for plumbing, heating and air conditioning technology, or a profession requiring a comparable level of knowledge. The following must be observed during installation and commissioning:

The relevant regional and national regulations.

The technical and safety instructions of these instructions.

Warning: risk of scalding

There is danger of steam emission with safety valves. Therefore a discharge pipe must be connected to the safety assembly, please observe the enclosed instructions regarding the safety valve when doing this.

Attention: damage of solar pump station

The group of fittings must be installed with sufficient spacing to the collectors because temperatures in the vicinity of the collectors can be very high. An intermediate vessel may be necessary for installation in the attic.

It is imperative that you make sure the EPDM sealing elements of the solar pump station do not come into contact with substances containing mineral oil. Mineral oil products cause lasting damage to the material, whereby its sealant properties are lost. If necessary, ask the manufacturer whether the solar fluid, fats or installation aids contain mineral oils. We don’t assume liability nor provide warranty for damage to solar station resulting from sealants damaged in this way.

1.4 Station dimensions:

Height ( with insulation):450mm

Width (with insulation):300mm

Depth (with insulation):158mm

Distance centre:1600mm

Distance axis/wall:55mm

Pipe connections: 3/4’ IT

Connection for expansion vessel set: 3/4’ET, flat sealing

Outlet safety valve: 1/2 IT

1.5 Specification of components

1)Non-return valve: opening pressure 200mmH2O

2)Connector of flow outlet (to collector):3/4’ IT

3)Safety valve: 6bar

4)Filling connector

5)Connector of expansion vessel

6) Manometer: 0-6bar

7) Sensor on return pipe (from tank to collector),NTC10K ( optional)

8) Circuit pump: Wilo 15-6 or Groundfos 15-65

9) Connector of drainage valve

10) Digital flow counter Return outlet connection (from collector): 3/4 IT

11) Connector of flow inlet (from tank):3/4’ IT

12) Connector of flow outlet (to tank):3/4’ IT ( no this connector on SR11L station)

13) Air separator

14) Manual air bleeder

15) Sensor on flow pipe (from collector to tank),NTC10K ( optional) ( no sensor on SR11L station) 16) Connector of flow inlet (from collector):3/4’ IT


Fitting: Brass

Seals: PTFE

Insulation: EPP, λ= 0.041W/ (m.K)

1.6 Technical Data

Max. permitted pressure: 6bar

Max. permitted operating temperature: 120oC

Digital flow rate FRT: 1-20L/Min

Solar System: Single pipeline

Shipping & Payment


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Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

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Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

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We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 10-20 Business days
Canada, Europe 10-20 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

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Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


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All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
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We do not issue the refund if:

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  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


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