SOLEXMIDI - Model HZ Up To 60 M² -Premounted Solar Transfer Station

• Field of application: for charging buffer storage tanks
• Application range: up to 60 m² collector surface with heat quantity measurement according to the BAFA promotion directive for solar thermal systems
• The CE-conformity of the installation has been certified according to DIN EN 60335.

• All connections ¾" internal thread
• Premounted on steel wall bracket
• can be easily mounted to the wall

All fluid-carrying parts made of brass or stainless steel, fully assembled - self-sealing or flat gaskets

Full port ball valves
Check valve in the solar and secondary circuit, can be opened, 200 mm wc, especially for solar systems, prevent unwanted circulation

Airstop in the flow line
for permanent deaeration of the solar fluid
With high-efficiency pumps by Grundfos, premounted and prewired, adapted to the performance of the transfer station, pumps can be isolated completely, no draining during servicing

Flush and fill unit integrated
two fill and drain valves permit filling and flushing the primary circuit, secondary circuit with pressure relief valve at the highest point of the heat exchanger

FlowRotor, flow meter for speed control of the secondary pump, depending on the performance and heat quantity balancing (secondary)
Solar safety group
Solar pressure relief valve 6 bars, pressure gauge resistant to high temperatures 0-6 bars with valve, flat sealing connection for a diaphragm expansion tank, secondary side with pressure relief valve, 6 bars

Compact design insulation with optimised function
made of durable elastic EPP, 100 % insulated valves and fittings - excellent ventilation and cooling of the pumps, minimal heat losses

High-efficiency plate heat exchanger
generously dimensioned, for transmitting high performances with low temperature differences, completely integrated into the insulation

OPERATING DATA

• Max. operating pressure primary: 6 bar
• Max. operating pressure secondary: 6 bar
• Low-flow: 0.25 l/min per m² of collector surface
• High-flow: 0.5 l/min per m² of collector surface
• Max. operating temperature primary: 120 °C
• Max. operating temperature secondary: 95 °C

EQUIPMENT

• Controller: SC5.14
• Check valves: primary:  2 x 350 mm wc / secondary:  2 x 200 mm wc
• Pressure gauge: 0-6 bars, resistant to high temperatures
• Flow meter: 3-22 l/min
• Shut-off valves: Ball valves
• Sensors: 2 x Pt1000 (integrated) / 3 x Pt1000 (enclosed)
• Heat exchanger: B25TH, 30 plates
• Safety valve: primary:  6 bars / secondary:  6 bars
• FlowRotor: 2-50 l/min
• Airstop: yes

DIMENSIONS

• Height: 795 mm
• Width: 674 mm
• Nominal diameter: DN 20 (¾")
• Depth: 298 mm
• Installation length: 670 mm
• Centre distance: 120 mm
• Connection primary: ¾" int. thread
• Connection secondary: ¾" int. thread

MATERIALS

• Valves and fittings: Brass
• Gaskets: EPDM / AFM34
• Insulation: EPP
• Piping: Edelstahl
• Check valves: Brass
• Heat exchanger: Solder:  copper, plates + connecting pieces:  stainless steel

DESIGN DATA

• Operating mode LowFlow: 15 l/(m²xh)
• Operating mode HighFlow: 40 l/(m²xh)
• Collector surface LowFlow: 60 m²
• Collector surface HighFlow: 30 m²
• Output LowFlow: 31 kW
• Temperature difference LowFlow: 33 K
• Temperature difference HighFlow: 12 K
• Boundary conditions: Irradiation = 800 W/m²; efficiency ?0.05 = 65%