Audited Supplier
SR11L EPP Solar Work Station & Pump Stations
1.1 Overview
- SR11L EPP solar workstation is used in a split pressurized solar water heater system.
- It can be combined with the SR258 controller.
- It combines flow control, heat cycle, exhaust, pressure control, temperature display, system injection/discharge and many other functions into one.
- By connecting solar collectors and split pressurized water tanks, store solar energy in the water tank.It can monitor system temperature, pressure, flow, etc. at any time.The structure of the entire assembly is compact, easy to install and use, good insulation effect.
1.1.2 Kits Parameter
| 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 evssel |
| 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 | Connection of flow inlet(from collector);3/4'IT |
1.2 Main functions
1.2.1 Flushing and filling the solar system
Flushing and filling connector is already integrated in the solar station, and we still recommend installing a filling and drainage valve horizontally at the lowest point of the solar circuit for flushing system.
1.2.2 Flow check
The flow counter is used for measurement and display of flow rate 1-20L/M, in order to guarantee the flawless function of the measuring device the system must be flushed and free from foreign substances.
1.2.3 Manual / Automatic integrative air bleeder
1.2.4 Electrical connection and operation instruction of controller (see manual of controller)
The controller is already integrated in the station and ready to plug in, display and digital counter are already preinstalled at factory. For maintenance or service work, it needs to take out the controller from station. For further information on electrical connection of the controller, please see manual of controller (terminal layout).
1.3 Delivery scope
| Components | Quantities | Remarks |
| Solar pump station | 1pc | SR11L |
| integrated solar controller | 1pc | SR258 |
| Wall mounting bracket | 1pc | |
| Mounting accessories | 1bag | |
| User manual | 1pc |
2.1 Technical parameters
| Parameter | Value |
| Hight(with insulation) | 450mm |
| Width(with insulation) | 300mm |
| Depth(with insulation) | 158mm |
| Distance center | 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 |
| Max.permitted pressure | 6bar |
| Max.permitted operating temperature | 120ºC |
| Digital flow rate FRT | 1-20L/Min |
2.2 Size
Product:450*300*158mm
Package:500*400*200mm
SR11L:7KGSR11L
2.3 Optional controllers for pump station
SR11L can be used with SR258 and other controllers.SR258 solar water heater intelligent controller is uesd for split pressure solar water heater.
Developed with the latest high-performance microcontroller from NXP, the Netherlands,thereby achieving intelligent control.
All devices use industrial grade standards,which can operate freely in cold, high temperature and humid environments.
Simultaneous use of the clock chip for precise timing control.
SR11L is LCD liquid crystal display, beautiful appearance, stable and reliable performance, easy installation, become the most ideal accessory product for solar water heaters.
2.3.1 SR258 controller
3.1 SR11L installati on diagram
SR11L
