Solar station DKP 6-8 / DKP Installation and Service Manual C

Transcription

1 EN Solar station DKP 6-8 / DKP 9-20 Installation and Service Manual C

2 Contents 1 Introduction Used symbols General Electrical compliance Safety instructions and recommendations Technical description General description Technical characteristics Pump unit Accelerator pump Airstop/degasser Antithermosiphon valve Installation Fitting the vent device (Airstop) to the solar heat exchanger inlet Fitting the pumping unit to the solar heat exchanger outlet Fitting to the solar station, steps to be followed: Connecting the pipe circuit to the solar station Assembling the pipes Hydraulic connections Wall connection kit for expansion vessel Dimensioning the expansion vessel Electrical connection Commissioning Spare parts - DKP 6-8 / DKP DKP 6-8 / DKP /07/ C

3 1 Introduction 1.1 Used symbols Caution danger Risk of injury and damage to equipment. Attention must be paid to the warnings on safety of persons and equipment. Specific information Information must be kept in mind to maintain comfort. Reference Refer to another manual or other pages in this instruction manual. 1.2 General The manufacturer is not liable for any improper use of the appliance or failure to maintain or install the unit correctly (the user shall take care to ensure that the system is installed by a qualified fitter). For a proper operating of the boiler, follow carefully the instructions. Keep these instructions in a safe place close to the appliance. 1.3 Electrical compliance This product complies to the requirements to the European Directives and following standards: /95/EC Low Voltage Directive Reference Standard: EN /108/EC Electromagnetic Compatibility Directive Reference Standards: EN / EN / EN Safety instructions and recommendations Any operation on the installation must be performed by a qualified technician respecting professional regulations and in accordance with this document. Service the appliance regularly to ensure that it operates correctly. To take advantage of the guarantee, no modifications must be made to the appliance. 06/07/ C DKP 6-8 / DKP

4 3 Technical description 3.1 General description The solar station includes a safety valve, an expansion vessel connection and a filling device. 3.2 Technical characteristics Solar station Height (with insulation) 630 mm Width (with insulation) 200 mm Depth 190 mm Maximum operating pressure 6 bar Maximum operating temperature 120 C (on occasion 180 C) Safety devices Safety valve 6 bar Connection kit for expansion vessel current Retaining / signalling components Spherical liner valve Mk3/4 Antithermosiphon valve Resistance 200 mm water columns Execution Mod. PPS can be fitted Maximum operating temperature 180 C Sealing material VILTON/EPDL O-ring 180 C AFM 34 gaskets 200 C Insulation Material EPP 3.3 Pump unit Accelerator pump High manometric pump: ST 20/6 - ST 20/9 Power exchanged 4 DKP 6-8 / DKP /07/ C

5 3.3.2 Airstop/degasser The solar station is fitted with a permanent degassing device (Airstop) on the flow pipes. The circulator conveys any air bubbles present to the Airstop system. The air contained in the heatexchanging medium is collected in the degasser. The degasser must be vented from time to time (several times after commissioning, then after one week followed by a further check after one month). For optimum efficiency, the solar installation must be vented using the degasser every six months. After venting, the installation operating pressure must be reset Antithermosiphon valve The check valve is included in the ball valve on the red thermometer and it is characterized by an opening pressure of 200 mm water column. 1. To fill, vent and rinse the installation, the antithermosiphon valves must be open. To open them, use a 14 mm openended spanner and open the valves half way. The ball in the valve lifts the check valve (45 ). 2. When the installation is operating, the ball valves must be fully open. The antithermosiphon valve operates when the stop cock is in the open position. 06/07/ C DKP 6-8 / DKP

6 4 Installation 4.1 Fitting the vent device (Airstop) to the solar heat exchanger inlet Screw the vent device to the top solar connection. First place the gasket in the coupling nut. 4.2 Fitting the pumping unit to the solar heat exchanger outlet Hold the pumping unit in place with the insulation housing on the tank and screw it onto the bottom solar connection. First place the gasket in the coupling nut. M A 6 DKP 6-8 / DKP /07/ C

7 4.3 Fitting to the solar station, steps to be followed: 1. Attach the control system to the mounting base frame provided. 6. Remove the part of the casing in plexiglass from the front insulation housing. Fit the front insulation housing without plexiglass but with control system to the solar station. The control system is now fitted and can be set from the front. 7. Drill a hole 8 in the side cover and feed through the DHW sensor. 8. Fitting the DHW sensor. 9. Refit the cover M A 2. Secure the control system on the mounting base frame to the station, above the pump. D B 10. Connect the connector delivered with the solar station to the circulator. M A 3. Fit the wiring between the pump and the control system. 4. Connect the tank sensors and the solar collectors. 5. Make the 230 V connection (qualified personnel only). Electrical connections, cf. commissioning the Diemasol A control system. 06/07/ C DKP 6-8 / DKP

8 4.4 Connecting the pipe circuit to the solar station Recommendation: connect the flow and the return according to the instructions in the illustration. If need be, it is nonetheless possible to modify the return by turning the valve block from left to right. After completing the solar circuit, filling it and checking the pressure, it is possible to fit the front housing to the station. 4.5 Assembling the pipes If connecting by brazing: - Strong brazing on joints to be brazed without scouring agent/ paint stripper. - Remove the rubber gasket before brazing. - Put the gasket back in place after brazing. The arrow on the pump must be pointing towards the roof ridge. Make the connections using clamping ring screw connections. With small systems, use De Dietrich propylene glycol containers to recover fluid under the safety valve discharge pipe. 8 DKP 6-8 / DKP /07/ C

9 4.6 Hydraulic connections Wall connection kit for expansion vessel The connection kit includes a 0.5 metre long stainless steel hose with nuts for pipe unions and flat gaskets for both sides as well as an arm and a screw connection supporting the expansion vessel. The connecting hose is arranged in such a way as to be able to fit the expansion vessel to the wall, beside the hot water tank. If the appliance is not installed against a wall, the installer must fit an extension (copper pipe) connecting the expansion vessel or connect the expansion vessel to the conduit coming out of the top of the hot water tank. If, due to lack of space, the arm cannot be mounted as such, it can be used as a floor-standing support. In this case, the opened expansion vessel is fitted in the horizontal position Dimensioning the expansion vessel The volume of the expansion vessel depends above all on the volume likely to be vapourised when the installation is switched off. For this reason, the expansion vessel must be chosen according to the number of collectors. When the number of collectors is high, parallel expansion vessels can be fitted. PRO PRO C POWER Collecto r surface Number of panels Total length of the pipe A/R < 30m A/R >30m Volume of the expansion vessel m 2 ø ext. (mm) ø ext. (mm) litres 5 15/18 15/ /18 15/ / / /18 15/ /18 15/ /18 15/ /18 15/ Expansion vessel capacity: Pre-inflation and pressure in the installation must be adapted to the configuration of the installation. Package no. Volume of the expansion vessel EG EG EG /07/ C DKP 6-8 / DKP

10 4.7 Electrical connection Make the 230 V connection (qualified personnel only). Electrical connections, cf. commissioning the Diemasol A control system. 5 Commissioning See: Domestic hot water tank manual. 10 DKP 6-8 / DKP /07/ C

11 6 Spare parts - DKP 6-8 / DKP 9-20 To order a spare part, quote the reference number next to the part required. 06/07/ C 9 A000646A Ref. Reference Description Insulation for DKP 6-8 solar station Part in plexiglass R 3/4 connection cross /4 double nipple Rp 3/4 return valve with antithermosiphon valve Circulator ST20/ DKP Circulator ST20/9-3 - DKP Flow valve Elbow R 3/ Drain cock Bleeder valve stopper 3/8" (after 06/2007) Degasser M/M 3/4" (after 06/2007) Air vent R 3/4 (before 06/2007) Safety device holder Solid plug R 3/ Manometer connection point bar manometer Ref. Reference Description bar safety valve Sachet of gaskets for DKP 6-8 solar station x3 O-ring 06/07/ C DKP 6-8 / DKP

12 Copyright All technical and technological information contained in these technical instructions, as well as any drawings and technical descriptions supplied, remain our property and shall not be multiplied without our prior consent in writing. Subject to alterations. 06/07/09