Hamworthy Trigon Solar Thermal Hot Water Systems Trigon flat-plate solar collectors Solar transfer stations and controllers Modular arrays up to 60m2 Trigon Solar Hot Water Systems Designed for commercial applications Trigon solar hot water solutions offer choice to building services engineers who are Optimised use of solar energy integrating solar energy into commercial hot water systems. Full integration with hot water systems Commonly, solar thermal energy is used via calorifiers with high efficiency coils, Pre-programmed schemes for easy set-up to transfer the heat into stored water for distribution around the building. The solar Intelligent power-saving controllers energy can be supplemented through heat from a boiler system, or by using an electric Impressive build quality immersion heater or other auxiliary sources. Alternatively, solar thermal energy may be Proven low-carbon solution used to pre-heat storage tanks which are used to feed the water supply to conventional Extensive technical sales support direct fired storage water heaters. This retains BENEFITS the seasonal efficiency benefits of separating the hot water generation from the heating system, and often enables the hot water generation to be located closer to the point Trigon packages from Hamworthy of use, further reducing heat losses associated with hot water distribution systems. integrate highly efficient solar thermal Finally, solar thermal energy can be used with direct fired waters heaters, without the energy into traditional heating and need for additional storage tanks, combining hot water systems for commercial Trigon solar collectors with a Hamworthy Dorchester DR-TC solar water heater, with applications. built in modulating gas burner to supplement the solar energy, and integrated control to prioritise use of solar energy, optimising the solar contribution. The synergy achieved with Hamworthy Trigon YEAR MANUFACTURER'S solar and Hamworthy’s other hot water WARRANTY systems delivers effective hot water solutions 5 to meet sustainable energy challenges with the most appropriate solution tailored for each project. Options Horizontal or vertical collectors Single or dual aspect fields Modular array mounting kits Solar transfer stations with standard or advanced controllers Heat metering Datalogger Powerstock calorifiers Powerstock storage tanks Dorchester direct-fired water heaters High quality, highly efficient Trigon solar collectors 2 Trigon Solar Equipment and Schemes Trigon solar hot water systems are designed for integration Trigon Equipment and Kits with the Hamworthy Powerstock twin-coil calorifiers, to ■ Trigon flat-plate collectors: provide solar duty domestic hot water (DHW) in systems - Trigon 2.3V, vertical where one coil in a Powerstock calorifier is fed by the solar circuit and one is fed by hot water from a boiler. Alternatively, - Trigon 2.3H, horizontal it can be used in two–stage DHW systems where, in the first ■ Collector mounting kits (includes flexible connectors stage, the solar circuit feeds both calorifier coils (with both between adjacent panel connections) to mount arrays of coils linked in series) to produce the solar pre-heated cold between 1 and 10 collectors on: water feed for input to a second stage of DHW heaters. These - flat roofs/ground can be either Dorchester water heaters or further Powerstock calorifiers and they generate the duty DHW output. - sloping slate, tile or corrugated steel roofs Trigon solar systems are an attractive proposition as they profit ■ Array hydraulic fittings kits (one required per array); from “free” solar energy whenever feasible. The more the includes balancing valve, hydraulic hardware and sensors calorifier is heated by solar energy, the less energy from other ■ System balancing and equalisation valve for overall system means is required to satisfy the heat demand at the DHW hydraulic flow balancing output, and so the greater the saving in fossil fuel, and the ■ System safety relief valve for use between collector arrays greater the carbon reduction. and any isolation valves on the collector field manifold Trigon systems become even more attractive when combined ■ All necessary temperature and light sensors with Hamworthy high efficiency gas, oil or biomass boilers for top-up, night time and anti-legionella purge cycle heating; ■ 4 solar transfer stations with standard or advanced creating highly cost effective solutions while, at the same time, controllers: reducing CO2 emissions. - 3 for use with single field of collectors The Trigon system includes high efficiency collectors with - 1 for dual-field use (advanced controller only) modular array fixing kits, solar transfer stations with industry- ■ Optional heat metering equipment to measure solar leading controls, all sized for optimum performance to suit heating contribution separately even the most demanding application. ■ In addition, Hamworthy support nine pre-defined Trigon System filling pump design schemes for rapid design implementation. ■ Heat transfer fluid The Hamworthy Trigon system is scalable up to a single ■ Sensor lightning protection box 2 collector field of 60m area (30 collectors), and is available as ■ Expansion vessel (solar side) individual items, as equipment kits or as pre-defined scheme ■ systems for use with Hamworthy Powerstock calorifiers and/ Powerstock twin coil calorifier or water tanks, Dorchester water heaters, and auxiliary The overview and descriptive sections that follow present the condensing gas boilers from the extensive Hamworthy range. Hamworthy Trigon system, and the information is organised Solar transfer stations for single collector field use are to reflect the functional block diagram on page 5. The designated ST1, ST2 or ST3 according to pump size and size block diagram also shows the Dorchester DR-TC system for of collector field supported, and increasing in size from ST1 to comparison, although this system is fully described separately ST3. The solar transfer station for dual-field use is designated in brochure 500002598. ST1 DUAL, and is made up of an ST1 and an ST1 extension Trigon DHW Schemes piece with additional pump and gauges. The block diagram on page 5 references nine pe-defined The Trigon solar transfer station and solar controller are design schemes that Hamworthy support for solar DHW ordered together as one part. The transfer station name is production, organised in two functional groups: appended with STD if supplied with the standard controller ■ Solar duty DHW schemes (DeltaSol BS/2), or ADV if supplied with the advanced ■ Solar pre-heated cold water feed DHW schemes controller (DeltaSol M) e.g. ST2 ADV. The schemes are presented from page 24 and offer a range Note that only transfer stations with an advanced controller of solar DHW solutions that can be scaled for a variety of can be specified for the dual-field option e.g. ST1 DUAL ADV, applications. Hamworthy can offer design guidance, and as the basic controller is designed to manage only one solar technical support alongside these schemes, to assist in pump whereas the advanced can manage a single pump or producing optimally sized, highly efficient solar DHW systems control two pumps independently. to suit location and DHW demand. Please contact Hamworthy sales to discuss your specific solar DHW requirements on 0845 450 2865. 3 Hamworthy Solar Systems Trigon and Dorchester DR-TC Systems Overview The Trigon and Dorchester DR-TC systems both use a single The controller automatically adjusts the solar fluid flow rate pressurised closed-loop solar circuit (or two circuits in the case as necessary, under differential temperature feedback control, of the Trigon ST1 DUAL ADV) to capture solar energy and so that it responds to available solar conditions, DHW heat convert this into heating for commercial Domestic Hot Water demand and draw off etc. to maintain efficient and effective (DHW) production for duty DHW systems, or can be used operating performance and safety. to generate the pre-heated cold water supply to other duty Hamworthy’s Trigon and Dorchester DR-TC closed-loop DHW systems. solar systems are summarised in the block diagram on page 5. Trigon systems offer single or dual collector field operation, whereas the Dorchester DR-TC system offers only single collector field operation, but has the advantage of not requiring any auxiliary boiler for topping-up heat or for anti-legionella cycling, so can be used in more space-limited applications. The equipment is organised by function as follows: ■ Solar (Energy Input) Collectors - Trigon collectors with fixing equipment (also for use with the Dorchester DR-TC system) ■ Solar Energy Transfer and Control Single collector field and store (left), and dual-collector field Trigon System: and store (right) solar circuits - 3 x Trigon transfer stations (with standard or advanced Each system operates using a generic solar heating cycle controllers) for single-field use where a heat transfer medium (solar fluid) circulates between - 1 x Trigon transfer station (with advanced controller) effectively two heat exchangers—one a Trigon solar collector for dual-field use field, the other a coil in a water store—taking in solar heat at - Optional heat metering and datalogger the first heat exchanger and giving out thermal heat at the Dorchester DR-TC System: second, to heat water in the store. The two heat exchangers are coupled via a solar transfer station, which houses the - 2 x Dorchester DR-TC transfer stations, (with dedicated solar pump (or pumps) on the return line to