ASSEMBLY AND MAINTENANCE MANUAL TECHNICAL SOLAR ROOF

Transcription

1 ASSEMBLY AND MAINTENANCE MANUAL TECHNICAL SOLAR ROOF November 2011

2 TABLE OF CONTENTS GOODS RECEIPT AND CONTROL SAFETY PRECAUTIONS HANDLING AND STORAGE INSTRUCTIONS TECHNICAL DATA ABOUT COLLECTOR 4 INSTALLATION 4 MAINTENANCE INSTRUCTIONS 11

3 GOODS RECEIPT AND CONTROL SAFETY PRECAUTIONS HANDLING AND STORAGE INSTRUCTIONS It is VERY IMPORTANT to check the goods. Checking the material received Prior to sending your products Thermochip carries out thorough quality control and a complete check of their conditions ex-works. Despite the careful packaging there is a chance that damage may occur during transport of the modules. If you find any defects in the modules during inspection, notify the haulage company forthwith. Thermochip will not be liable for any damage suffered by the goods during transport if it has not been informed about the damage occurrence during the first 48 hours subsequent to delivery. The start-up and maintenance of the THERMOSLATE installation must be carried out by specialized staff (an installation company authorized to carry out thermal installations in buildings, sanitary hot water and heating systems). The safety provisions for installations laid down by the prevailing standards in this regard must be complied with, in particular those set out in the legislation of each country. The standards in force pertaining to Occupational Risk Prevention must also be complied with. When handling the collectors it is recommended to use the necessary protection measures. Storage will not be carried out in places exposed to the elements and should there be no other alternative they must be properly insulated by means of a watertight tarpaulin to avoid water infiltrations. The modules are distributed in pallets in horizontal position and packaged individually. The modules packaging must not be withdrawn until their installation. The slate roof must be turned upwards. Do not place materials on the last module of the pallet to avoid any possible bumps and breakages of the slate finish and of the module itself.

4 Assembly and maintenance MANUAL TECHNICAL DATA ABOUT COLLECTOR INSTALLATION General modules specifications Unladen weight (Kg) 21,4 Fluid content (l) 0,44 Heat-bearing fluid Water + Anti-freeze Recommended flow (l/hm 2 ) Tube and diameter configuration (mm) Grid Ø 2,8 mm* Recommended working pressure (bar) 2-4 Maximum working pressure (bar) 6 Maximum operating temperature (ºC) 100 Maximum freezing resistance (ºC) -8 Stagnation temperature for 1000 W/m2 at 89,6 0ºC (ºC) * Equivalent diameter. Mechanical data of the modules Measurements (tolerances mm) 1200 x800mm Maximum height (tolerances mm) 56 mm Assembly diagram: installation on levelling mortar. The levelling layer must have a minimum thickness of 70 mm and be formed by selflevelling mortar with a minimum resistance class of C25. The sumps must be properly sized, positioned and implemented to allow correct water evacuation. Reference surface areas Absorption area (m 2 ) 0,96 Opening area (m 2 ) 0,96 Total area (m 2 ) 0,96 Rendimiento Optical performance factor 0,82 Thermal losses a1 11,5 W/(m 2 K) a2 0,044 W/(m 2 K) FLUIDO DE TRABAJO Type Propylene glycol with corrosion-proofing properties Composition and additives Propylene glycol and water Density (g/cm ) 1,06 4

5 Levelling layer. Panel. Slope formation. XPS board. Waterproofing layer. Support profile. 1 Installation of support profiles for panels 1.1. Drilling Introduction of bolt for fixing holds. WURTH type screw W-ZDN 8X60 Drill diameter 8 mm. Screw length 60 mm. 50 mm. 600 mm. 600 mm. 5

6 Assembly and maintenance MANUAL 2 Installation of support profiles for integration parts 5 Collector installation 140 mm. 10 mm. 2 1 Installation of remaining profiles Installation of insulation boards Screwdriver + 1 mm socket. (8x) Self-drilling screw (oxl) 4x19 Minimum insulation density kg/m 50 mm. min 00 mm. 6

7 6 Connections between collectors by means of corrugated tube 7 Place reinforcement parts 8 Place integration parts Screwdriver + 1 mm. socket. (8x) Self-drilling screw (oxl) 4x

8 Assembly and maintenance MANUAL Connection between collectors The THERMOSLATE collector modules are designed for assembly in series or parallel forming batteries. + The number of collectors connected in series will depend on the place and installation conditions. Thermochip does not recommend installations in series of more than 8 modules. + At installations which so require, the collection surface area can be multiplied by parallel connection of collector batteries. Parallel connection of batteries increases the final system performance. Connection in series Parallel Connection + Each collector battery consists of a series of elements which must be installed for proper operation, maintenance and verification. + A shut-off valve will be placed at the battery input to insulate the battery from the rest of the installation as well as a safety valve with 6 bar calibration. + The deaereator must be placed at each battery output as well as the shut-off valve to insulate the battery in the event of a breakdown or maintenance. + The installation will be controlled by installing a sensor at the battery output. 8

9 + At the battery input and output it is recommended to install an extendable antivibration hose to absorb any possible thermal expansions. + Collectors will be connected by means of a seal fitting which assured watertightness at the joint. Two wrenches will be required to tighten this joint in such a way that one secures the fixed part and the other tightens the sliding nut. + The collectors must be assembled in such a way that the installation is avoided from remaining idle during the maximum solar radiation hours. The installation should be filled during low solar radiation hours. + It is recommended to carry out a review of the solar thermal installation on the roof before starting the works. Due attention must be paid to the input point of the primary circuit tubes under the roof so that there is no interferences by the latter point with the panels installed. If new works are carried out, it is recommended to consider locating the downpipes during the design stage to avoid problems during works implementation. The passage under the roof must be totally sealed once the installation has been carried out. + In order to ensure that the operation of all system batteries is optimum, the assembly must be carried out in such a way that they are hydraulically balanced. The hydraulic balancing of the complete system can be achieved in two different ways: - Balancing valves. - Connection of batteries with the same number of collectors and using the inverted return tubes design. Tubing diameter + Tubing diameter depends on the design flow of the installation. The regulations in force in each country must be complied with, ensuring that the linear losses do not exceed the maximum value permitted. + The recommended design flow for this collector must fall between l/hm 2. (consult the technical department about any possible series/parallel configurations). No. of collectors Tubing diameter (mm) For a flow of 0l/hm 2 9

10 Assembly and maintenance MANUAL Pressure drop 200 A load loss in the collector at L/min and 25ºC is 125 mbar / 25kPa. Observe the graphic below for load losses with flows of up to 4 l/min. P (mbar) ,5 1 1,5 2 2,5,5 4 Q (l/min) Working fluid + Water with additives will be used as the working fluid on the primary circuit. The additives must be anti-freeze and have corrosion-proofing properties. + Furthermore, they must not constitute any risk to health nor to the environment, in other words, they must not be toxic, irritate the skin or eyes or contaminate water. They must also be totally biodegradable. One example is the TYFOCOR HTL or another with equivalent characteristics. + This fluid must be used in the right proportion so that, depending on the climate zone and assuming the minimum record temperature as a reference, the installation is protected from frosts. + Precautions should be taken to prevent any possible deterioration in the anti-freeze fluid as the result of high temperature conditions. These precautions must be checked in line with UNE- EN The installation will be fitted with the systems required to facilitate its filling. + It is worth having an auxiliary tank filled with heat-bearing fluid with identical characteristics to replace any losses which may occur in terms of fluid on the primary circuit. Permitted wind and snow load Recommendations regarding lightning protection + The collector allows maximum positive loads of wind and snow equivalent to KPa. No special measures are required for collector installation. + The maximum negative load of wind allowed by the collector is equivalent to.5 KPa. 10

11 MAINTENANCE INSTRUCTIONS To ensure the smooth, effective operation of the THERMOSLATE installation, overall maintenance is required and this can be split up into 2 different procedures. + Preventive surveillance plan for the installation. + Corrective maintenance. Preventive surveillance plan for the installation This procedure encompasses all the operations which allow it to be ensured that the operating values of the collector are the right ones throughout the working life of the installation. It is a simple observation plan of the main functional parameters to check that the collection modules are in the right condition. It will usually be undertaken by the user who, advised by the installer, will observe the correct performance and condition of the elements. The actions to be undertaken and the implementation period will be that described in the table below. Operation Frequency Description Cleaning To be determined Cleaning of the slate roof with water or any detergent. Slate 6 months Viewing of parts breakage or detachments. Absorver 6 months Viewing of rust, deformations, etc. Connections 6 months Viewing of posible leaks. Corrective maintenance This refers to those operations which must be carried out to remedy any failings detected after implementing the activities included in the preventive surveillance plan for the installation and so no major degradation or anomalies are caused. This maintenance will be carried out by accredited staff acting in accordance with the standards to which this type of installations are subject. Manufacture The panel THERMOSLATE panel is made by Thermochip S.L.U. 11

12 La Medua, s/n 20 Sobradelo de Valdeorras Ourense - Spain Tels thermoslate@cupagroup.com