Technical description

• Domestic Hot Water Secondary
  1 anti-thermosiphon check valve 150mm (can be opened) (secondary flow)
  2 piston valves (secondary flow and return with drain valve
  Secondary safety valve 10 bar
  Simple domestic high efficiency circulator pump GRUNDFOS UPML 25-105 N
  Generoulsy sized exchanger 2×60 brazed plates stainless steel AISI 316 in counter-current
  Secondary drain valve
  Expanded PolyPropylene insulating elements (can be removed individually)
  Solar Primary
• Primary safety group:

– Solar safety valve 6 bar – 3/4” int
– Solar fill valve
– Pressure gauge 0-6 bar
– Expansion vessel connection 1″ ext with flat seal

• 2 ball valves (primary flow and return)with fill and drain valve
• 2 anti-thermosiphon check valves 200mmCE (can be opened) (primary flow and return)
• Simple high efficiency solar circulator pump GRUNDFOS SOLAR UPM XL 25-125
• Permanent primary air bleeder with manual air vent valve and temperature sensor
• Solar electronic flowmeter 5-130 l/min and temperature sensor
• Fill and drain primary valve
• Solar controller 600i with 4 temperature sensors Pt1000 including 2 installed on the primary for heat quantity measurement (with primary flowmeter)

Available model: