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PAW SolarBloC midi Basic 2S Installation And Operation Instruction Manual

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PAW GmbH & Co. KG
Böcklerstr. 11, 31789 Hameln, Germany
Phone: +49-5151-9856-0, Fax: +49-5151-9856-98
E-mail: info@paw.eu, Web: www.paw.eu
Installation and Operation Instructions
Solar stations
SolarBloC® midi Basic 3-line - DN 20
09/2023
99775810x-mub-en - V01
1

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  • Page 1 PAW GmbH & Co. KG Böcklerstr. 11, 31789 Hameln, Germany Phone: +49-5151-9856-0, Fax: +49-5151-9856-98 E-mail: info@paw.eu, Web: www.paw.eu Installation and Operation Instructions Solar stations SolarBloC® midi Basic 3-line - DN 20 09/2023 99775810x-mub-en - V01...

  • Page 2: Table Of Contents

    Table of Contents Table of Contents General Information....................3 About these instructions....................3 About this product......................3 Designated use......................4 Safety instructions......................5 Mounting and installation [specialist]..............7 Commissioning [specialist]..................11 Flushing and filling the solar circuit................12 Preparations before flushing..................15 Flushing and filling.....................16 Setting the solar installation..................

  • Page 3: General Information

    General Information 1 General Information Carefully read these instructions before installation and commissioning. Save these instructions in the vicinity of the installation for future reference. 1.1 About these instructions These instructions describe the installation, commissioning, function and operation of the 3-line solar station SolarBloC®...

  • Page 4: Designated Use

    Due to its design, the station must only be mounted and operated as described in these instructions! Only use PAW accessories with the solar station. Improper usage excludes any liability claims. 2S: two-tank solution 2D: two-roof solution Under the influence of solar radiation, the collectors will heat up considerably.

  • Page 5: Safety Instructions

    Safety instructions 2 Safety instructions The installation and commissioning as well as the connection of electrical components require technical knowledge commensurate with a recognised vocational qualification as a fitter for plumbing, heating and air conditioning technology, or a profession requiring a comparable level of knowledge [specialist].
  • Page 6 Safety instructions CAUTION Personal injury and material damage due to overpressure! Closing both ball valves in the primary circuit will separate the safety group from the heat exchanger. A rise in temperature in the storage tank may result in high pressures, which may lead to personal injury and material damage! Only close the ball valves for service and maintenance.

  • Page 7: Mounting And Installation [Specialist]

    Mounting and installation [specialist] 3 Mounting and installation [specialist] NOTICE Material damage due to high temperatures! Since the solar fluid near the collector can be very hot, the group of fittings must be installed at a sufficient distance from the collector field. It may be necessary to install an intermediate tank in order to protect the expansion tank.
  • Page 8 Mounting and installation [specialist] 1. Remove the station from the packaging. 2. Remove the insulating front shell. 3. Loosen the clip spring for the fixation the pump line of the 2-line station (see illustration). 4. Remove the line from the insulating shell. 5.
  • Page 9 Mounting and installation [specialist] 8. Copy the mounting holes next to the thermometers of the solar station to the mounting surface. 9. Drill the holes and mount the solar station to the wall with suitable wall plugs and screws. 10. Connect the solar station to the installation by using the pipes as follows: Two-tank solution: ①...
  • Page 10 Mounting and installation [specialist] 11. Connect the pipe for the expansion tank to [7.4] and fix the bracket for the expansion tank. 12. Adapt the initial pressure of the expansion tank to the system and connect the expansion tank. Observe the separate instructions for the expansion tank! 13.

  • Page 11: Commissioning [Specialist]

    Commissioning [specialist] 4 Commissioning [specialist] Please observe the following safety instructions regarding the commissioning of the station: WARNING Risk of burning and scalding! The valves and fittings may heat up to more than 100 °C. Therefore, do not clean or fill the system when the collectors are hot (intense sunshine).

  • Page 12: Flushing And Filling The Solar Circuit

    Commissioning [specialist] 4.1 Flushing and filling the solar circuit The fill and drain valves necessary to flush and fill the installation are integrated in the solar station. Make sure not to wash dirt particles that may be present in the solar installation into the expansion tank.
  • Page 13 Commissioning [specialist] Functions of the fill and drain valve within the safety group Position Function Position "closed" (station in operation): Fill and flush circuit is closed. Pressure gauge indicates system pressure. Position "open" (fill and flush processes): Fill and flush circuit is open. Pressure gauge indicates pressure. Position "maintenance"...
  • Page 14 Commissioning [specialist] Airstop The Airstop (vent valve with manual bleeder) is used to vent the solar system. To ensure a perfect venting of the solar circuit, the flow velocity must be at least 0.3 m/s in the flow line. Pipe diameter [mm] Flow rate at 0.3 m/s l/min ∅...

  • Page 15: Preparations Before Flushing

    Commissioning [specialist] 4.2 Preparations before flushing 2-tank solution 2-roof solution The solar circuit is flushed in the direction of flow. 1. Disconnect the expansion tank from the solar system. Observe the separate instructions for the expansion tank! 2. Close the return ball valves [1.2|7.1] (90°, see chapter 4.1). 3.

  • Page 16: Flushing And Filling

    Commissioning [specialist] 4.3 Flushing and filling 1. Open the fill and drain valves [7.3|9.2]. For this, turn the valve [7.3] into position "open", see chapter 4.1. 2. Put the flush and fill station into operation and flush the installation until clear solar fluid exits. Vent the solar installation several times at the vent plug of the Airstop [4.2] until the solar fluid exits without bubbles (see chapter 4.1.)
  • Page 17 Commissioning [specialist] 6. Open the fill and drain valves [7.3|3.2] by turning the valve [7.3] to position "open", see chapter 4.1. 7. Put the flush and fill station into operation and flush the installation until clear solar fluid exits. Vent the solar installation several times at the vent plug of the Airstop [4.2] until the solar fluid exits without bubbles, see chapter 4.1.
  • Page 18 Commissioning [specialist] To vent the pump section, carry out the following steps for the two-roof solution: 3. Slowly open the ball valve [7.1] in the return (see chapter 4.1). 4. Switch off the pump of the flush and fill station and close the fill and drain valves [7.3|9.2].
  • Page 19 Commissioning [specialist] Close the drain valve [9.2] while the filling pump is running and increase the system pressure to about 5 bars. The system pressure is displayed on the pressure gauge. 10. Check the pressure gauge to see whether the system pressure reduces and eliminate leaks where necessary.
  • Page 20 Commissioning [specialist] 15. Connect the (optional) controller to the mains and set the solar circuit pump in the manual mode to Max. according to the controller instructions. Let the solar circuit pump run at maximum rotation speed for at least 15 minutes. In the meantime, vent the solar system several times at the vent plug of the airstop until the solar fluid exits without forming bubbles (see chapter 4.1).

  • Page 21: Setting The Solar Installation

    Commissioning [specialist] 4.4 Setting the solar installation 1. Set the desired revolution speed of the solar pump depending on the required flow rate. If necessary, the flow rate can be reduced by the ball valve [3.1] (only necessary if the pump is not speed-controlled).

  • Page 22: Maintenance [Specialist]

    Maintenance [specialist] 5 Maintenance [specialist] 5.1 Replacement / adjustment of the pressure gauge 1. Switch off the controller and secure it against being switched on again. 2. Make sure that the valve [7.3] is closed with a cap. 3. Turn the valve [7.3.] in position "maintenance" by removing the stop screw, see chapter 4.1.

  • Page 23: Draining The Solar System

    Maintenance [specialist] 5.2 Draining the solar system 1. Switch off the controller and secure it against being switched on again. 2. Open the check valves in the return ball valves [1.2|7.1], by turning them to position 45° (see chapter 4.1). 3.

  • Page 24: Deinstallation

    Maintenance [specialist] 5.3 Deinstallation 1. Drain the solar installation as described in the previous chapter. 2. Disconnect the pipe connections to the solar installation. 3. To remove the solar station from the mounting plate, pull out the clip springs laterally with a screwdriver. 4.

  • Page 25: Scope Of Delivery [Specialist]

    Scope of delivery [specialist] 6 Scope of delivery [specialist] NOTICE Serial number Complaints and requests/orders of spare parts will only be processed with information on the serial number! The serial number is placed on the safety group. In case of a complaint, please send us the entirely completed commissioning report. ►...
  • Page 26 Scope of delivery [specialist] Position Spare part Item number Dial thermometer, red scale, d = 50 mm, 0-160 °C N00193 Return ball valve DN 20, ¾" int. thread x F ¾" x ¾" ext. thread on the N00290 right, solar check valve Sealing kit, 24.0 x 17.0 x 2.0, ¼", for thread connection ¾", 10 pieces N00030 Dial thermometer, blue scale, d = 50 mm, 0-160 °C...

  • Page 27: 1-Line Station

    Scope of delivery [specialist] 6.2 1-line station Position Spare part Item number Dial thermometer, blue scale, d = 50 mm, 0-160 °C N00194 Pressure relief valve ½" x ¾", 6 bars N00300 Pressure gauge 0-6 bars / 0-90 psi, d = 50 mm, G ¼" axial, 130°C N00337 Sealing kit, 30.0 x 21.0 x 2.0, ½", for thread connection 1", 10 pieces N00024...
  • Page 28 Scope of delivery [specialist] Position Spare part Item number Union nut G 1", passage 28.1 mm, wrench size 37, octagonal N00302 Return ball valve DN 20, ¾" int. thread x F ¾" x ¾" ext. thread on the N00290 right, solar check valve Connection of the PWM pumps Wilo Para ST 15/7 Wilo Para ST 15/13...

  • Page 29: Technical Data

    Technical data 7 Technical data Dimensions Total height 2S: 430 mm, 2D: 491 mm Total width 572 mm Depth 150 mm Centre distance, flow / return 100 mm Centre distance, return / return 250 mm Pipe connections ¾” internal thread Connection for expansion tank ¾"...

  • Page 30: Dimensional Drawing Solarbloc® Midi Basic 3-Line - Two-Tank Solution

    Technical data 7.1 Dimensional drawing SolarBloC® midi Basic 3-line - two-tank solution 99775810x-mub-en - V01 09/2023...

  • Page 31: Dimensional Drawing Solarbloc® Midi Basic 3-Line - Two-Roof Solution

    Technical data 7.2 Dimensional drawing SolarBloC® midi Basic 3-line - two-roof solution 09/2023 99775810x-mub-en - V01...

  • Page 32: Pressure Drop And Pump Characteristic Curve

    Technical data 7.3 Pressure drop and pump characteristic curve 99775810x-mub-en - V01 09/2023...

  • Page 33: Function Of The Check Valves [Expert]

    Function of the check valves [Expert] 8 Function of the check valves [Expert] The check valves in this station prevent unwanted gravity circulation within their range of use. The functioning of the check valves depends: on the system height ● on the temperature difference between storage tank and collector ●...
  • Page 34 Function of the check valves [Expert] Do you need to know it exactly? The density of the solar fluid strongly decreases with increasing temperature. In systems of high system heights and with large temperature differences, the difference in density causes gravity circulation.

  • Page 35: Disposal

    Disposal 9 Disposal NOTICE Electrical and electronic devices must not be disposed of in the household waste. For your return, there are free collection points for electrical appliances and, if necessary, additional points of acceptance for the reuse of the devices in your area. The addresses can be obtained from your city or communal administration.

  • Page 36: Commissioning Report

    Commissioning report 10 Commissioning report System operator Location of installation Collectors (number / type) Collector surface m² System height m (height difference between the station and the collector field) Pipeline Diameter = length = Venting (collector field) manual vent valve automatic vent valve vented Bleeding device (station)

  • Page 37: Notes

    Notes 11 Notes 09/2023 99775810x-mub-en - V01...
  • Page 38 Notes 99775810x-mub-en - V01 09/2023...
  • Page 39 Notes 09/2023 99775810x-mub-en - V01...
  • Page 40 Böcklerstr. 11 31789 Hameln, Germany Translation of the original instructions www.paw.eu We reserve the right to make technical changes without notice! Phone: +49-5151-9856-0 Printed in Germany – Copyright by PAW GmbH & Co. KG Fax: +49-5151-9856-98 09/2023 99775810x-mub-en - V01...

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