Product range Solex Technical data and dimensioning. 5 Years

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1 Qualität made in Germany Product range Solex Technical data and dimensioning Quality made in Germany 5 Years Handwerkergarantie m anufacturer s warranty

2 Product range Solex Dimensioning High-Flow system with harp collectors Low-Flow system with meander collectors Dimensioning of a Solex module Different collector types with the same size of collector field need very different flow rates for an effective operation without interruption. The hydraulic connection of the collector field as well as the shape of the collector can also influence the optimal flow of the solar circuit. Corresponding values should be agreed with the manufacturer of the collectors. They can also be found in the technical documents of the collectors. The solar systems are roughly divided into High-Flow systems and Low-Flow systems. High-Flow systems are operated with a higher flow rate and a smaller temperature difference between collector inlet and collector outlet. In reality, these systems have less pressure drop than Low-Flow systems. Accordingly, Low-Flow systems work with lower flow rates and a higher temperature difference. The Solex transfer stations can be used for High-Flow solar thermal systems as well as for Low-Flow systems. The values for the specific flow rate given below refer to the nominal flow rate. Depending on the control target and the basic conditions, the flow rate in the partial-load range is adapted by the controller and can be much smaller than the calculated nominal flow rate. High-Flow systems have a flow rate of 25 to 40 litres per square metre of collector surface and hour or 0.42 to 0.67 litres per square metre of collector surface and minute. Low-Flow systems have a flow rate of 10 to 20 litres per square metre of collector surface and hour or 0.17 to 0.33 litre per square metre of collector surface and minute. The total flow rate in a solar thermal system depends on: System operation mode (High-Flow/Low-Flow) Collector surface Performance of the heat exchanger (secondary) The circulation pump dimensioning depends on: Flow rate Pressure drop of heat exchanger, collector, piping system For the selection table of the proper Solex, we assumed a minimum head of ~5 m wc (~50 kpa). If the real collector field (including pipes) has a higher pressure drop, a detailed dimensioning is inevitable. Selection table solar transfer stations - Solex Specific flow rate in l/(m² x h) Collector surface in m / / Mini Mini Mini Mini Midi Midi Midi Maxi Maxi Maxi 20 Mini Mini Mini Mini Midi Midi Maxi Maxi Maxi Maxi 25 Mini Mini Mini Midi Midi Maxi Maxi Maxi Maxi 30 Mini Mini Mini Midi Midi Maxi Maxi Maxi 35 Mini Mini Midi Midi Maxi Maxi Maxi 40 Mini Midi Midi Midi Maxi Maxi *** precise dimensioning required 180/ / 400 *** / / *** / / / *** / / / *** 2 We reserve the right to make technical changes without notice! Printed in Germany 01/2016

3 Overview product range Solex Solar transfer stations SolexMini - for installations up to 36 m² of collector surface SolexMini HZ/TW Operating mode Collector surface Power Temperature difference (collector inlet/ collector outlet) 25 l/(m²xh) 36 m² 18 kw 20 K 40 l/(m²xh) 30 m² 15 kw 12 K Conditions: Irradiation = 800 W/m²; efficiency ŋ 0.05 = 65% SolexMidi - for installations up to 60 m² of collector surface SolexMidi HZ/TW Operating mode Collector surface Power Temperature difference (collector inlet/ collector outlet) 15 l/(m²xh) 60 m² 31 kw 33 K 40 l/(m²xh) 30 m² 15 kw 12 K Conditions: Irradiation = 800 W/m²; efficiency ŋ 0.05 = 65% SolexMaxi - for installations up to 100 m² of collector surface SolexMaxi HZ/TW Operating mode Collector surface Power Temperature difference (collector inlet/ collector outlet) 15 l/(m²xh) 100 m² 50 kw 33 K 25 l/(m²xh) 80 m² 25 kw 12 K Conditions: Irradiation = 800 W/m²; efficiency ŋ 0.05 = 65% Solex - for installations up to 200 m² of collector surface Solex HZ/TW Operating mode Collector surface Power Temperature difference (collector inlet/ collector outlet) 15 l/(m²xh) 200 m² 100 kw 33 K 25 l/(m²xh) 160 m² 50 kw 12 K Conditions: Irradiation = 800 W/m²; efficiency ŋ 0.05 = 65% Solex-Kaskade - for installations up to 400 m² of collector surface Solex- Kaskade HZ/TW Operating mode Collector surface Power Temperature difference (collector inlet/ collector outlet) 15 l/(m²xh) 400 m² 200 kw 33 K 25 l/(m²xh) 320 m² 100 kw 12 K Conditions: Irradiation = 800 W/m²; efficiency ŋ 0.05 = 65% We reserve the right to make technical changes without notice! 01/2016 Printed in Germany 3

4 Produktfamilie Product range Solex Solar transfer stations Product range Solex Advantages of the PAW solar transfer stations: CE conform according to DIN EN Insulation according to EnEV directive PAW focuses on the two versions Solex HZ (heating) and Solex TW (DHW) for its solar transfer stations. The Solex HZ modules are suited for applications in heating systems whereas the Solex TW modules can be used in domestic hot water systems. Solutions in the dimensions DN 15 to DN 50, offer a broad application range up to 400 m² of collector surface. Thus, you obtain a maximum flexibility during system planning. SolexMini SolexMini SolexMidi / SolexMaxi SolexMidi / SolexMaxi Application range of solar transfer stations The solar circuit in a solar thermal system must be filled with a water and propylene glycol mixture to prevent frost damage. The heating installation is normally operated with water. To transfer the heat energy from the solar circuit to the heating circuit, a heat exchanger is used. In small systems, a smooth pipe heat exchanger integrated in the storage tank transfers the heat energy. With larger collector fields, the heat transfer capacity of those heat exchangers is no longer sufficient. In large systems, solar transfer stations transfer the collected heat energy from the collectors to the heating water circuit. The centre piece of those modules is a plate heat exchanger, which allows an efficient heat transfer by means of its cross-flow operating mode. The operating conditions of the heat exchanger vary due to fluctuation in heat radiation, buffer temperatures and individual system requirements. To operate the entire system at its optimum, you have to set the flow rates at the heat exchanger, depending on the individual control target and the current conditions. For this purpose, the Solex modules use high-efficiency pumps, which offer an extremely broad adjustment range. Thus, the controller adjusts the pumps efficiently to the currently required flow rates. Additionally, the pumps used save more than 50% of electrical driven energy compared to conventional asynchronous pumps. Furthermore, these pumps meet the energy efficiency guidelines (EuP / ErP READY) of The controller is delivered preset, mounted and prewired to guarantee an easy adjustment to the real system. The use of flow rate sensors in the Solex modules allows a power adjusted control, an efficient system monitoring and an integrated heat quantity measurement. For a safe and quick commissioning, the Solex modules are equipped with pressure relief valves, ball valves as well as with fill and drain valves. Solex 4 We reserve the right to make technical changes without notice! Printed in Germany 01/2016

5 Function overview controller - SC5.14 Solar transfer stations Controller SC5.14 for solar transfer stations: SolexMini HZ/TW SolexMidi HZ/TW SolexMaxi HZ/TW Solex HZ/TW Solex-Kaskade HZ/TW for installations up to 36 m² of collector surface for installations up to 60 m² of collector surface for installations up to 100 m² of collector surface for installations up to 200 m² of collector surface for installations up to 400 m² of collector surface The controller SC5.14 is completely mounted and preset, so that only the collector field sensor and the storage tank sensor must be installed and connected. A text-based menu navigation in five selectable languages permits a simple controller operation. The controller comprises preset systems and can be used in solar installations with up to two domestic hot water tanks. The preset systems are optimised for PAW hydraulics. Not only temperature measurement, but also heat quantity balancing is possible by means of the sensors. SC Technical data Display Connection scheme Solex HZ Multiline LC text display, illuminated, with menu navigation (multilingual) ΔT-control Operation 7 push buttons Speed control yes Relay outputs Inputs Interfaces 4 x semiconductor relays, 230 V 1 x potential-free relay 4 x PWM signal (0-10 V) for revolution speed control 10 x Pt x solar radiation input CS10 1 x impulse input V40 1 x RPS / VFS 1 x FlowRotor Grundfos Direct Sensor (analogue) SD card (loading/saving of configuration files, firmware updates) Heat quantity measurement Tube collector function Antifreeze function Thermal disinfection External heat exchanger Return distribution Bypass activation Heat quantity balancing yes Stratified storage tank charging yes Circulation (depending on time / yes Quick tank charging yes temperature) Flow rate sensors yes Thermostat function yes Connection scheme Solex TW yes yes yes yes yes yes yes yes Equipment for SC5.14 Temperature sensor Pt Measuring range: - 50 C to C - Connection: 1.5 m of silicone cable - Dimensions: d = 6 mm Item number E13170 We reserve the right to make technical changes without notice! 01/2016 Printed in Germany 5

6 Product range SolexMini HZ/TW up to 36 m 2 of collector surface Technical data SolexMini up to 36 m 2 of collector surface Materials Valves and fittings Brass Gaskets Klingersil / EPDM Insulation EPP Check valves Brass Heat exchanger Plates + connecting pieces: (AISI 316) Solder % copper Technical data Maximum pressure HZ: primary: 6 bars / secondary: 3 bars TW: primary: 6 bars / secondary: 10 bars Maximum operating temperature primary: 120 C / secondary: 95 C Dimensions Connections Width Height Depth Equipment Heat exchanger Check valves Pressure relief valve Pressure gauge Measurement of flow rate primary: ¾ " int. thread / secondary: ¾ " int. thread 427 mm 680 mm 249 mm 24 plates (IC8T) HZ: primary: 2 x 200 mm wc / secondary: 1 x 200 mm wc TW: primary: 2 x 200 mm wc HZ: primary: 6 bars / secondary: 3 bars TW: primary: 6 bars / secondary: 10 bars 0-6 bars, resistant to high temperatures HZ/TW: primary: FlowRotor with Hall sensor, measuring range: l/min HZ only: secondary: Flowmeter, measuring range: l/min Sensors HZ: 2 x Pt1000 (integrated), 3 x Pt1000 (enclosed) TW: 2 x Pt1000 (integrated), 2 x Pt1000 (enclosed) Controller SC5.14 Dimensioning* Specific flow rate Max. flow rate of 900 l/h 25 l/m 2 h 36 m 2 of collector surface 30 l/m 2 h 30 m 2 of collector surface 35 l/m 2 h 25 m 2 of collector surface 40 l/m 2 h 22.5 m 2 of collector surface *at approx. 5 m wc residual head 6 We reserve the right to make technical changes without notice! Printed in Germany 01/2016

7 Features - Overview SolexMini HZ Airstop for permanent deaeration of the solar fluid Heating pressure relief gauge 3 bars Pressure relief valve approved by TÜV (German Technical Inspection Agency), 6 bars Solar fill valve Generously dimensioned high-efficiency plate heat exchanger: with long thermal length for a low return flow temperature made of stainless steel AISI plates Solar pressure gauge 0-6 bars Connection for expansion tank ¾" ext. thread Return temperature sensor Pt1000 Solar drain valve Solar controller SC5.14 with temperature controlled charging of the storage tank and heat quantity balancing simple PC connection via USB and LAN connection to the building management system Example SolexMini HZ FlowRotor with Hall sensor and function control: for a precise flow rate measurement in the solar circuit measuring range l/min Full metal thermometer to the solar circuit C to the heating circuit C Brass check valve, can be opened Thermometer ball valve, ¾": in the heating and solar circuit housing made of brass spindle can be replaced under pressure temperature measuring by means of the spindle in the fluid High-efficiency pump with serial number ErP and EuP READY up to 50% energy saving better controllability works silently Detailed and illustrated instruction manuals available in the following languages: We reserve the right to make technical changes without notice! 01/2016 Printed in Germany 7

8 Product range SolexMidi HZ/TW up to 60 m 2 / SolexMaxi HZ/TW up to 100 m 2 of collector surface SolexMidi HZ (heating installation) SolexMaxi TW (domestic hot water system) Technical data SolexMidi up to 60 m 2 of collector surface Materials Valves and fittings Brass Gaskets Klingersil / EPDM Insulation EPP Check valves Brass Heat exchanger Plates + connecting pieces: (AISI 316) Solder % copper Technical data Maximum pressure HZ: primary: 6 bars / secondary: 6 bars TW: primary: 6 bars / secondary: 10 bars Max. operating temperature primary: 120 C / secondary: 95 C SolexMaxi up to 100 m 2 of collector surface Dimensions Connections HZ: ¾" int. thread HZ: 1" int. thread TW: prim.: ¾" int. thread / sec.: 1" ext. thread TW: prim.: 1" int. thread / sec.: 1½" ext. thread Width 674 mm 674 mm Height 795 mm 828 mm Depth 298 mm 298 mm Equipment Heat exchanger 30 plates (IC25) 60 plates (IC25) Check valves HZ: prim./sec.: 2 x 200 mm wc TW: prim.: 2 x 200 mm wc / sec.: 1 x 150 mm wc HZ: prim.: 2 x 200 mm wc / sec.: 1 x 200 mm wc TW: prim.: 2 x 200 mm wc / sec.: 1 x 150 mm wc Pressure relief valve HZ: primary / secondary: 6 bars TW: prim.: 6 bars / sec.: 10 bars Pressure gauge 0-6 bars, resistant to high temperatures Measurement of flow rate Sensors Controller HZ/TW: primary: FlowRotor with Hall sensor, measuring range: 2-50 l/min HZ only: sec.: Flowmeter, measuring range: 3-22 l/min HZ: 2 x Pt1000 (integrated), 3 x Pt1000 (enclosed) TW: 2 x Pt1000 (integrated), 2 x Pt1000 (enclosed) SC5.14 HZ/TW: primary: FlowRotor with Hall sensor, measuring range: 2-50 l/min HZ only: sec.: Flowmeter, measuring range: 5-40 l/min Dimensioning* Specific flow rate Max. flow rate of 900 l/h Max. flow rate of 1500 l/h 15 l/m 2 h 60 m 2 of collector surface 100 m 2 of collector surface 20 l/m 2 h 45 m 2 of collector surface 75 m 2 of collector surface 25 l/m 2 h 36 m 2 of collector surface 60 m 2 of collector surface 30 l/m 2 h 30 m 2 of collector surface / 35 l/m 2 h 25 m 2 of collector surface / 40 l/m 2 h 22.5 m 2 of collector surface / *at approx. 5 m wc residual head 8 We reserve the right to make technical changes without notice! Printed in Germany 01/2016

9 Features - Overview SolexMidi / SolexMaxi HZ Generously dimensioned high-efficiency plate heat exchanger: with long thermal length for a low return flow temperature made of stainless steel AISI 316 SolexMidi: 30 plates SolexMaxi: 60 plates FlowRotor with Hall sensor: for a precise flow rate measurement measuring range: 2-50 l/min Pressure relief valve approved by TÜV (German Technical Inspection Agency), 6 bars Solar fill valve Solar pressure gauge 0-6 bars Connection for expansion tank ¾" int. thread Airstop for permanent deaeration of the solar fluid Pressure relief valve approved by TÜV (German Technical Inspection Agency), 6 bars Drain valve Example SolexMaxi HZ Thermometer ball valve with brass check valve, can be opened Drain valve Flow temperature sensor Pt1000 rapid temperature measurement Brass check valve, can be opened High-efficiency pump with serial number ErP and EuP READY up to 50% energy saving better controllability works silently Thermometer ball valve, 1": in the heating and solar circuit housing made of brass spindle can be replaced under pressure temperature measuring by means of the spindle in the fluid Solar controller SC5.14 with temperature controlled charging of the storage tank and heat quantity balancing simple PC connection via USB and LAN connection to the building management system Detailed and illustrated instruction manuals available in the following languages: We reserve the right to make technical changes without notice! 01/2016 Printed in Germany 9

10 Product range Solex HZ/TW up to 200 m 2 of collector surface Technical data Materials Valves and fittings Gaskets Insulation Check valves Heat exchanger Technical data Maximum pressure Solex up to 200 m 2 of collector surface Brass EPDM or AFM 34, asbestos-free EPP Brass Plates + connecting pieces: (AISI 316) Solder: % copper HZ: primary: 6 bars / secondary: 6 bars TW: primary: 6 bars / secondary: 10 bars Maximum operating temperature primary: 120 C / secondary: 95 C Dimensions Connections HZ: 1½" int. thread TW: prim.: 1½" int. thread / sec.: 1½" ext. thread Width 710 mm Height 1,649 mm Depth 920 mm Equipment Heat exchanger 2 x 50 plates, XB37M Check valves HZ: primary: 2 x 200 mm wc / secondary: 2 x 200 mm wc TW: primary: 2 x 200 mm wc / secondary: 1 x 150 mm wc Pressure relief valve HZ: primary / secondary: 6 bars TW: primary: 6 bars / secondary: 10 bars Pressure gauge 0-6 bars, resistant to high temperatures FlowRotor HZ/TW: primary: l/min HZ only: secondary: l/min Sensors HZ: 2 x Pt1000 (integrated) TW: 2 x Pt1000 (integrated), 2 x Pt1000 (enclosed) Controller SC5.14 Dimensioning Specific flow rate Max. flow rate of 3000 l/h 15 l/m 2 h 200 m 2 of collector surface 20 l/m 2 h 150 m 2 of collector surface 25 l/m 2 h 120 m 2 of collector surface *at approx. 5 m wc residual head 10 We reserve the right to make technical changes without notice! Printed in Germany 01/2016

11 Features - Overview Solex HZ (heating installation) Generously dimensioned high-efficiency plate heat exchanger: with long thermal length for a low return flow temperature made of stainless steel AISI x 50 plates additionally insulated heat exchanger to increase the energy efficiency Solar controller SC5.14 for temperature-controlled charging of the storage tank and heat quantity balancing simple PC connection via USB and LAN optionally: connection to the building management system Ball valves with integrated nonreturn valve and fill and drain valve Compact design insulation with optimised function made of durable elastic EPP insulating elements can be removed individually Airstop for permanent deaeration of the heat transfer medium and for controlled venting of the installation FlowRotor with Hall sensor: for a precise flow rate measurement measuring range: l/min Example Solex HZ Flow temperature sensor Pt1000 rapid temperature measurement Pressure relief valve approved by TÜV (German Technical Inspection Agency), 6 bars Connection for expansion tank 1" ext. thread Solar pressure gauge 0-6 bars High-efficiency pumps with serial number ErP and EuP READY up to 50% energy saving better controllability works silently Drain valve Detailed and illustrated instruction manuals available in the following languages: We reserve the right to make technical changes without notice! 01/2016 Printed in Germany 11

12 Product range Solex-Kaskade HZ/TW up to 400 m 2 of collector surface Technical data Solex Kaskade up to 400 m 2 of collector surface Materials Valves and fittings Brass Gaskets EPDM or AFM 34, asbestos-free Insulation EPP Check valves Brass Heat exchanger Plates + connecting pieces: (AISI 316) Solder % copper Technical data Maximum pressure HZ: primary: 6 bars / secondary: 6 bars TW: primary: 6 bars / secondary: 10 bars Maximum operating temperature primary: 120 C / secondary: 95 C Dimensions Connections 2" ext. thread / flange DN 50 Width 1,672 mm Height 1,890 mm Depth 870 mm Equipment Heat exchanger 4 x 50 plates, XB37M Check valves HZ: primary: 4 x 200 mm wc / secondary: 4 x 200 mm wc TW: primary: 4 x 200 mm wc / secondary: 2 x 150 mm wc Pressure relief valve HZ: primary / secondary: 6 bars TW: primary: 6 bars / secondary: 10 bars Pressure gauge 0-6 bars, resistant to high temperatures FlowRotor HZ: 4 x l/min TW: 2 x l/min Sensors HZ: 4 x Pt1000 (integrated) TW: 2 x Pt1000 (integrated), 4 x Pt1000 (enclosed) Controller SC5.14 Dimensioning Specific flow rate Max. flow rate of 3000 l/h 15 l/m 2 h 400 m 2 of collector surface 20 l/m 2 h 300 m 2 of collector surface 25 l/m 2 h 240 m 2 of collector surface *at approx. 5 m wc residual head 12 We reserve the right to make technical changes without notice! Printed in Germany 01/2016

13 Features - Overview Solex-Kaskade HZ Module with controller can be placed on the right or left side Compact design insulation with optimised function insulating elements can be removed individually Simple and quick installation due to premounted pipe set For a double cascade only one controller is necessary. Simple and quick installation of the floor-standing station Adjustable rack legs to compensate for unevenness of the floor. We reserve the right to make technical changes without notice! 01/2016 Printed in Germany 13

14 Product range Solex Order data Illustration Item Item number SolexMini HZ - DN 15 primary: Grundfos UPM3 Solar secondary: Grundfos UPM3 Solar SolexMini HZ SolexMini TW - DN 15 primary: Grundfos Solar PM secondary: Grundfos UPM CIL2 SolexMini TW SolexMidi HZ - DN 20 primary: Grundfos UPM3 Solar secondary: Grundfos UPM3 Solar SolexMidi HZ SolexMidi TW - DN 20 primary: Grundfos Solar PM secondary: Grundfos UPM CIL2 SolexMidi TW Accessories SolexMini HZ / SolexMidi HZ 2-way zone valve - DN 20 (¾") for connecting and disconnecting single storage tanks, DN 20, ¾" internal thread, setting time for 90 : 30 sec 2-way zone valve - DN 20 (¾") way zone valve - DN 20 (¾") to switch between different storage tanks, DN 20, ¾" internal thread, setting time 90 : 18 sec, Kvs value = 7 3-way zone valve - DN 20 (¾") Accessories SolexMini TW / SolexMidi TW 2-way zone valve - DN 20 (¾"), suitable for DHW suitable for DHW, for connecting or disconnecting single storage tanks or flow paths, DN 20, ¾" int. thread, setting time for 90 : 12 s, Kvs value = 45. Certified by DVGW, ACS and WRAS. 2-way zone valve - DN 20 (¾"), suitable for DHW Illustration Item Item number SolexMaxi HZ - DN 25 primary: Grundfos Solar PML secondary: Grundfos UPM3 Solar SolexMaxi HZ SolexMaxi TW - DN 25 primary: Grundfos Solar PML secondary: Grundfos UPML N SolexMaxi TW We reserve the right to make technical changes without notice! Printed in Germany 01/2016

15 Product range Solex Order data Accessories SolexMaxi HZ 2-way zone valve - DN 25 (1") for connecting and disconnecting single storage tanks, DN 25, 1" int. thread, setting time for 90 : 30 sec 2-way zone valve - DN 25 (1") way zone valve - DN 25 (1") to switch between different storage tanks, DN 25, 1" int. thread, setting time for 90 : 18 sec, Kvs value = 11 3-way zone valve - DN 25 (1") Accessories SolexMaxi TW 2-way zone valve - DN 25 (1"), suitable for DHW suitable for DHW, for connecting or disconnecting single storage tanks or flow paths, DN 25, 1" int. thread, setting time for 90 : 12 s, Kvs value = 60. Certified by DVGW, ACS and WRAS. 2-way zone valve - DN 25 (1"), suitable for DHW Illustration Item Item number Accessories Solex HZ Solex HZ - DN 32 primary: Grundfos UPM XL secondary: Grundfos UPML Solex HZ Solex TW - DN 32 primary: Grundfos UPM XL secondary: Grundfos UPML Solex TW way zone valve - DN 32 (1¼") for switching between single storage tanks, DN 32, 1¼" int. thread, setting time for 90 : 18 sec., Kvs value = 11 3-way zone valve - DN 32 (1¼") Return distribution set 1½" 3-way valve with actuator, setting time for 90 : 35 sec., Kvs value: 40 Return distribution set 1½" Solex-Kaskade HZ - DN 50 primary: Grundfos UPM XL secondary: Grundfos UPML Solex-Kaskade HZ Solex-Kaskade TW - DN 32 primary: Grundfos UPM XL secondary: Grundfos UPML N Solex-Kaskade TW Accessories Solex-Kaskade HZ Return distribution set 2" internal thread 3-way valve with actuator, setting time for 90 : 35 sec., Kvs value: 40 Return distribution set 2" internal thread We reserve the right to make technical changes without notice! 01/2016 Printed in Germany 15

16 PAW GmbH & Co.KG Böcklerstraße 11 D HAMELN GERMANY Download this brochure Version: 01/2016 Printed in Germany 99609xx-fly-en