Solar Pumping Station SR21L

What is a Solar Pumping Station?

A solar Pumping station is a module containing Heat transfer fluid circulation pump, solar differential controller, check valve, safety valve, filling valve, Tank temperature sensors and collector temperature sensor.

This solar pump station is a pre-installed and leak-tested for transferring heat from the collector to the Water Storage Tank. 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 Vent for manual bleeding of the solar thermal system.
• Electronic flow meter for displaying fluid flow rate.
• Manometer for displaying system pressure.
• Safety valve to prevent over pressure.
• Flushing and filling unit for flushing, filling and emptying the solar thermal system.
• Non-return valve: opening pressure 200mmH2O

List 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

Kit Includes:

• 1* solar pump station with Wilo RS-15/6 Pump
• 1* integrated solar controller SR658
• 1* collector sensor PT1000
• 1* wall mounting bracket
• 1* accessory bag（include 2 * screw and dowel ;  2 * strain relief）
• 1* Operating and Maintenance Manual

O&M Manual SR21L  & SR658   Wilo RS-15/6