ATMOS HEATING SYSTEMS Twin Coil Sealed Solar System Installation & User Manual THIS MANUAL IS TO BE LEFT WITH THE HOUSEHOLDER AFTER INSTALLATION Atmos Heating Systems West March Daventry Northants NN11 4SA Tel: 01327 871990 Fax: 01327 871905 e-mail: sales@atmos.uk.com internet: www.atmos.uk.com T2 panels (& enlarged Appendix) Issue 3.12.
Twin Coil Sealed Solar System Ins Man Page 2 of 15
1.0 1.1 General Introduction Water heated by the solar panels is pumped down to a well insulated twin coil hot water storage cylinder under the control of an electronic controller. The solar coil in the lower section of the cylinder provides solar heat, whilst the upper coil is connected to the boiler to provide the back up when the solar heat is insufficient. The solar system is sealed and requires a special glycol anti-freeze fluid to protect against freezing.
2.0 Installing Roof-Integrated Solar Panels (For pantiles, etc, but not slates) See separate leaflet available from Atmos. 3.
3 Panels Twin Coil Sealed Solar System Ins Man Page 5 of 15
1. Remove roofing tiles in the area of solar panel assembly (upper edge of the collector panels approx 3 to 4 rows of tiles from the ridge). 2. Fasten the supporting profile to the rafters using wood screws, 80 to 100mm above the lathwork. Pay attention to weathering of the profile, in respect to the position of the panel. 3. Attach hooks to the supporting profile according to the picture shown. Do not tighten the screws as further adjustment will be necessary. 4.
6. Ensure that the sensor cables are not in contact with uninsulated pipes, and are kept separate from other wiring and adequately clipped. If the sensor cable is not long enough, use a connecting box and 2 core cable (heat resistant if near any hot pipes). The cable should not look the same as mains cable. 7. The solar expansion vessel should be pre-pressurised to 2.5 bar. 8.
6.0 Technical Specifications & Diagrams Construction Absorber Efficiency Other information Outside dimensions Weight Frame Absorber area Glass Undersidel insulation Side insulation Connection All-copper absorber with highly selective surface Absorption Emissivity Working pressure Content 2090 x 1080x 103 mm 44.5 kg Black anodized alloy AIMgSI 0.5 2,018 m2 Solar th. = 4 mm, safety glass Transmittance of solar radiation e = 90%; Fe2O3 content = 0.
SOLAR SYSTEM DIAGRAM Solar Sensor S1 (Panel sensor FKP6) TOP OF PANELS NOTE FLOW should go horizontally into roof space, or with a rise to air vent before dropping to hot water tank.
Solar Controller BS Controls Diagram NOTES 1. For an OSO Solarcyl unvented twin coil tank, wire the lower thermostat as shown using a wiring centre or junction box. Fit the tank sensor S2 (using heat conductive paste) into the sensor pocket beside the lower thermostat. 2. For a RCM/Stanley unvented twin coil tank, take the lower thermostat and remove the control thermostat part, so that just the 85 deg C limit thermostat is left.
7.0 7.1 Appendix Commissioning Check Sheet Check List Tick/Comment 1. Solar panel is in good location and without significant shading. 2. Solar panel orientation is correct and flow pipe taken to upper connection of panel. 3. Solar panel is securely mounted and flashing secure (if appropriate). 4. Solar panel pipes are insulated with high temperature insulation (eg Armaflex). 5. Panel temperature sensor is fitted in place correctly. 6. Roof fixings robust and weather tight; roof penetrations made good.
7.2 Installation Diagram for RCM Unvented Twin Coil tank with HE26 Boiler Note Tank is RCM/Stanley unvented indirect tank Note: This is a diagrammatic illustration only, and does not override manufacturer’s instructions for boiler and unvented hot water tank. Solar circuit shown on page 9. Atmos InterSystem HE26 condensing gas boiler Unvented tank expansion vessel (white) as supplied with tank. Connect to cold water inlet assembly with braided hose.
7.
7.4 Installation Diagram for OSO Unvented Twin Coil tank with HE26 Boiler Note Tank is OSO unvented tank with internal secondary expansion Note: This is a diagrammatic illustration only, and does not override manufacturer’s instructions for boiler and unvented hot water tank. Solar circuit shown on page 9.
7.
