Working Station

Display flow rate, Display system pressure

Three speed levels on circulation pump

Holiday function, Anti-bacteria function

Three periods of time adjustable on auxiliary heating

Three periods of time adjustable on pipeline circulation

Frost protection of pipeline and collector

Emergent stop of system overheating

Storage tank overheating protection,

Temperature difference circulation

Time display

8 solar hot water systems for choice

Main functions

Range of temperature measuring: PT1000 : 0199 NTC10K: 099

System design pressure: 1 Mpa, Safety valve respond pressure: 0.6 MPa

4 x Relay output (Max. load current: 3A)

1 x Auxiliary heating output (Max. load current: 15A)

Output signals:

4 x NTC10K sensor temperature probe

SP228 Double pipeline solar control system