Solar Water Heating Systems

The Advantage Of LAZER 2 Above Other Systems

Independent tests carried out by a leading European research institute (Institut fue Solartechnik SPF) have shown that the LAZER 2 Solar collector out-performs all of our major competitor’s products*1

• All Black Roof Bars
• No Metal Clip Ends
• No User Input Required
• Glass To Glass Seals Giving 25 Year
• Warranty Against Loss Of Vacuum

With LAZER 2 no user input is required, our TD9 digital controler has no external buttons or controls that may be misused by occupier later and require a call out situation. The system is fully self regulating and maintenance free. The high borosilicate glass even cleans itself. The manufacturing quality and aesthetics, far exceeds that of other systems. There are no unsightly metal clip ends which might rust, or rubber seals that fatigue over time. The LAZER 2 has stylish all black anodised aluminium roof bars and manifold covers with no gaps between tubes and all glass to glass seals which enables us to give a 25 YEAR WARRANTY against loss of vacuum in the tubes.

*1 :Other collectors tested include (but not limited to): Apricus, Filsol, OPC, Schott, Seido, Sonnenkraft, Stiebel Eltron, Thermomax, Vallient, Viessmann.
*2 :Limited warranty covers LAZER 2 tubes against loss of vacuum during normal operation for a period of 25 years.

Multi Installation - Site Specialist

Lazer2 Solar System Overview

The LaZer2 Solar System is the result of extensive research and development. It has been tested alongside other leading solar hot water systems to ensure that it offers the highest level of performance and the maximum amount of hot water. Designed and built in the UK, the LAZER2 Solar System is based on advanced yet proven technology and has been optimised to work in climates like those of Britain.

The compact, stylish LAZER2 Solar Collectors incorporate the most advanced vacuum tube technology, allowing them to heat your water when there is no direct sunshine and it is freezing outside.

THE LAZER2 Solar System works with all types of domestic hot water system and will provide free hot water for at least 25 years. A system usually takes 1 -2 days to fi t, requires no scheduled maintenance and no user input once installed. By using a LaZer2 Solar System to heat water you will save money and help the environment in the process.

The Lazer2 Solar System Will:

• Provide 60 - 75% of domestic hot water
• Radically reduce water heating bills
• Heat your water in summer and winter
• Integrate with all types of heating system
• Require no scheduled maintenance
• Reduce CO2 emissions by <500kg/year

Multi-Installation - Site Specialist
LAZER2 is ideally for multi-installation as it can be installed prior to permanent power & water on site. Gael Energy has a dedicated team of installers experienced in working with large developments integrating seemlessly with various construction stages.

LAZER2 Solar Thermal Collector
Specifi cations
Collector Type LAZER2 Direct Water
Absorber Area 3.1 m2
Aperture Area 0.93m2 (1m2)
Gross Area 1.35m2
Total Length 2110 mm
Total Width 615 mm
Total Depth 104mm (manifold 113mm)
Total Weight 43kg
Operating Pressure < 4 bar
Design Life > 25 years
Vacuum Tube High-borosilicate Glass
Tube Strength Tested to withstand a 25mm hailstone
Tube Diameter 58 mm
Tube Length 1960 mm
Vacuum P = 5 x 10 -2Pa
Absorber Wavelength Selective Coating AL-N/AL
Effi ciency >93% (optimum)
Tube Warranty 25-Years
EN/BS standard EN12975 – 1

How The Lazer2 Solar System Works

The LAZER2 Collectors work just like your existing heat source, except they are powered by free, clean solar energy rather than an expensive, dirty, carbon fuel. The LAZER2 Solar System is your primary heat source. Your boiler, stove or immersion heater will automatically raise the water temperature if required. Even when solar energy levels are low the LAZER2 system will add some heat to the water, so your existing heat source will do far less work.

The system comprises of four main components: LAZER2 Solar Collectors, TD3 Digital Controller, Circulation Module and a Hot Water Cylinder.

1. Lazer2 Solar Collectors
The 93% efficient LAZER2 vacuum tubes are ideal for cooler climates such as Ireland’s, as they work virtually as effectively when it is 0°C or 30°C outside. The LAZER2 vacuum tubes have a 25-year warranty, as there is no glass to metal seal that can fail.

The collectors incorporate horizontally mounted vacuum tubes with a curved collecting surface, automatically compensating for varying roof pitches and the change in the Sun’s angle throughout the year. Solar energy penetrates the glass and is absorbed by the specially selected coating on the collecting surface. Once absorbed the energy is trapped inside the tube by the vacuum. A unique aluminium heat sink transfers the trapped energy to the advanced internal manifold, which directly heats the water, minimising energy losses.

A LAZER2 collector will perform better throughout the year than systems with fl at-plate collectors, vertically mounted vacuum tubes or ‘heat pipes’.

2. Td9 Digital Controller
The TD9 Digital Controller is the ‘digital heart’ of the system. It uses sensors to compare the temperature of the water in the collector with that in the cylinder. When the collector is 3°C warmer than the cylinder, the solar pump switches on and the water circulates through the system, transferring heat to the cylinder. If the temperature difference is below 3°C the pump turns off to stop the water in the cylinder being cooled. The TD9 incorporates SMART logic to allow the system to start heating the cylinder earlier and for longer each day. SAFE logic prevents your system over heating during periods of low water usage. The controllers LCD Display will continually show three temperatures; water entering the collector, water leaving the collector and water in your cylinder.

A ‘Solar Pump’ indicator illuminates when the circulation pump is operating and your system is producing hot water. A ‘Tank Hot’ indicator illuminates when the water in the cylinder reaches the predefined temperature (e.g. 55°C).
The installation team will configure the TD9 Digital Controller when fitting the system and will select the optimum settings for your system. Once this is done no further user input is required.

3. Circulation Module
The Circulation Module is made up of the following components:
Pressure Gauge - Shows the pressure within the system
Flow Meter - Indicates the flow rate within the system
Pump - Circulates water around the system
Expansion Vessel - Allows for changes in the water volume inside
the system Filling Loop - Allows the system to be filled
One-Way Valve - Prevents thermo-siphoning during cold periods

4. Hot Water Cylinder
The type of cylinder you need depends on your domestic water heating
system and hot water usage.

A typical LAZER2 Solar System will incorporate a bespoke twin-coil cylinder; the top coil for the gas boiler circuit and the lower coil (with twice the standard surface area) for the solar circuit. All of our cylinders are built to order and to reduce heat loss will have double the usual insulation.

An immersion heater is fitted as standard. If required a Blender Valve can be installed to regulate the temperature of water reaching the taps, preventing the risk of scalding as well as helping to conserve
your hot water supply.

Installation & Maintenance
The LAZER2 Solar System is designed for easy installation and planning permission is not normally required. The low-profile Collectors clip into a unique roof mounting system that avoids roof leaks and keeps all pipe-work hidden from view. The Circulation Module will be fitted close to your hot water cylinder and will integrate seamlessly with your existing hot water system. The TD9 will be placed to allow you to monitor the system
.
The LAZER2 Solar System has been designed and manufactured in Britain to the highest of European standards (EN12975–1). Once installed no scheduled maintenance is required. The non-toxic antifreeze and corrosion inhibitor will provide protection for the life of the system. The extra smooth glass will even clean itself.