Solar Thermal Ancilliaries
Solarlogic Controller
Solarlogic is the solar temperature differential controller that is 13 different controls in one. Press 'select system' button, and scroll through the 13 different solar system configurations. Then press 'set config' to the matching system picture. Simple to operate, simple for the installer to set up, but cutting edge technology providing all the additional optional functions that systems require.
Key features
- Anti-legionella function
- Winter start auto setting (widens the TD automatically in cold weather)
- Pump speed control
- 3 relay outputs
- 4 sensor inputs
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BS3 Solar Controller
An industry standard controller for many years. Available separately or pre-wired into Flocal B Pump Station. Configure as a simple solar arrangement, or for using with a twincoil cylinder with backup from an additional heat source. Also regarded by service engineers as replacement unit.
The BS3 solar controller is available separately or included with the Intaeco Flocal B Pump Station for standard solar thermal systems provide a clear operating concept and is complete with illuminated digital display and system switching and monitoring functions. The controller offers options for 2 types of system, solar heat only (arrangement 1), or solar heat and alternative heat source (arrangement 2), by simply programming the requirement.
- Single Store applications, Single or bank of parallel collectors
- Two relay connection points allow for the connection of the solar pump in arrangement 1 (solar heat only), and the addition of the additional circulating pump/ boiler in arrangement 2.
FloCal B Pump Station plus controller
Flocal B standard twinline pump station prepared for the direct mounting and integration of the RESOL BS3 controller. Pump is a Wilo Star 15/6, return line is with a isolating valve and non return valve, and safety valve group. Flow line complete with isolating valve and air scoop. Maximum temperature 110C, with peaks up to 180C. Operating max pressure 10 bar. Flowmeter 1 – 13 Ltrs per min. Wall mounting, supplied complete with fixings. Standard issue with 6 bar safety valve.
Solarlogic Pumps
Solarlogic pump group for the circulation of Glycol mix fluids through solar thermal heating applications provide filling & flushing connection points, fluid flow regulation,system temperature & pressure readings,check valve for anti-gravitation, safety relief valve & discharge connection, point of connection for expansion vessel & isolation, isolation of upper and lower system levels & pump
Models
The Solarlogic single line pump group is for RETURN pipe connection and pumps into the solar collector, circulating by provision of the installer of a flow line to the hot water storage cylinder heat exchanger and back to the pump. Connections are for 22mm copper (compression, to fit pUre collectors). The Solarlogic twin line pump group is for RETURN and FLOW pipe connections into the solar collector and flow back to the pump group, through the isolation valve and through the air separator. Flow into and through the hot water storage heat exchanger and return to the pump.
Connections are for 22mm copper (compression).
Solarlogic Maxi
Solarlogic Maxi has been designed for the integral mounting of the Intaeco Solarlogic controller. It also provides larger internal dimensions for a future changeover to high energy efficient pumps, both 130mm and 180mm. From 1st January 2013, the EUP (energy using products initiative), an energy efficiency index will be applied to pumps of 0.27 (calculation rating) and below. These pumps will require a larger internal dimension allowance within the insulation jacket. Solarlogic Maxi pump group for the circulation of glycol mix fluids through solar thermal heating applications provide filling and flushing connection points, fluid flow regulation, system temperature and pressure readings, check valve for anti-gravitation, safety pressure relief valve and discharge connection, point of connection for expansion vessel and isolation, isolation of upper and lower system levels and pump.
Sensor Connection Boxes

Description: The C-CSCB and SE-SP10 sensor connection boxes with overvoltage protection device should be installed to protect the solar collector temperature sensors against induced overvoltages caused by lightning strikes or other external sources.
During a local thunderstorm, voltage peaks which could potentially destroy the sensor are induced in the sensor cable. The protection diodes in both the C-CSCB and SE-SP10 limit these overvoltages to a value harmless to the sensor. Both the C-CSCB and SE-SP10 connection boxes are IP65 rated and are suitable for mounting outside. Cable glands for the sensor cables are provided to facilitate weatherproof entry into the box.
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Intasol Combi Diverter Valve

Description: The Intasol is a hot water diverter valve for use with combination boilers or instantaneous water heaters. This means that a solar system can now be linked with a combi boiler as back-up.
Cross-flow contamination is eliminated by the clever deployment of solar check valves integrated within the valve.
Technical Specification
- Maximum operating pressure: 10 bar static, 5 bar dynamic
- Connections: 15mm compression
- Maximum inlet pressure: 2:1
- Maximum operating temperature: 100°C
- Regulating temperature: 35-55°C
Downloads
Information.pdf Installation.pdf
Videos
Thermostatic Mixing Valve

Storing energy from the sun in the form of hot water, can lead to water arriving at the taps at higher than normal temperatures. In some cases, the cylinder maximum store temperature can be raised to as high as 80°C, which if delivered through a tap or any outlet, would present a severe danger of possible scalding.
The Solar Thermostatic Mixing valve is designed to temper the water temperature to a safer level. Unlike the under basin, or bath/shower type valves we are familiar with on the market, the Solarmix is designed to function continuously at high temperatures, something a standard TMV2 valve could not cope with.
Fitted close to the HW outlet from the cylinder, the Solarmix blends the high temperature hot water with cold, to provide safe water supplies. Flow rates are also greater on these valves and are suitable for use on pressurised systems (please note though, they may not be suitable for use on some LP gravity DHWS).
Solar Thermostatic Mixing valves should not be installed instead of TMV2 or TMV3 valves, and are used in a different context to these valves.
Downloads
Expansion Vessel
Zilmet solar vessels are suitable for use in glycol based fluid systems with a mix ratio up to 50.
The SolarPlus has a flat diaphragm design and a welded steel vessel. The vessels are designed for system temperatures reaching 120°C, and peaks of 130°C actually inside the vessel. We have yet to verify any vessel that can prove to work consistently at 130°C, and also find it strange that the vessel max working temperatures are quoted higher than that of the solar circulating pumps. Expansion vessels should always be located on the cool side of the system, and as far from the collector as possible. To this extent connect points are located on the solar pump station. If the vessel can only be located in an extreme temperature location, then we and Zilmet recommend the addition of a VSG intermediate heat dissipation vessel to the expansion vessel installation.
Other Zilmet Options
VSG ADDITIONAL INTERMEDIATE TANKS: These tanks are equipped with entry and an exit valves and is placed before the solar expansion tank. This tank provides heat dispersion by reducing the working temperature and therefore greatly increasing the life of the tank.
SOLAR-PLUS SAFE: is a new series with an advanced concept - particularly where space is a problem: Solar-Plus Safe combines a Solar-Plus with an additional tank. All included in a vertical tank that allows a 40% reduction in require space and a 50% reduction in installation time.
Expansion Vessel Connection Kits

Description: A pre-formed stainless steel flexible is also provided to connect the vessel to the system at the connection point provided on the Flo Cal Solar Pump and Control Station.
Intermediate Vessels & SolarSafe. The bracket is much more robust than is used with normal heating vessels of a similar size. Note the intermediate vessels are always fully flooded, so the weight should be considered, and this type of robust bracket used.
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Motorised Valve

Description:The SF 2 port motorized zone valves and SF 3 port motorized diverting valves are powered by an electric actuator and have two operating positions depending on whether the motor is activated (energized) or not. The valves can be supplied with one or two auxiliary switches on request. These are activated when the valve switches and are usually linked to a pump to hold the pump off until the valve is open.
The valves are equipped with an external lever for manually positioning the shut-off ball in its central position.
Both the 2 and 3 port valves are rated to operate at temperatures up to 160°C. The internal ball used for closing or diverting is made of a material suitable for aqueous-glycol based fluids and the higher temperatures that can be experienced in solar thermal systems.
Downloads
Solar Balancing Valve

For flow balancing, adjusting and control of flow in solar heating systems. Visual flow indicator and flow adjustment. All components rated for high temperatures as could be realised in this type of system. Rated to 130 C max working temperature.
Downloads
Solar Air Vent

The air-scoop on the pump station provides air removal at the point of commissioning, but no automatic venting. The solar automatic air vent provides long term removal of air.
Usually being installed at the highest point in the system, near or next to the collector, means that the valve is in the area of the system where the most extreme temperature conditions are created, so in the manufacture of this product, using high temperature solar rated components is critical.
Use in conjunction with the Intaeco Solar ball valve to provide isolation so the AAV can be removed during maintenance without losing fluid.
Downloads
Discal Air Valve

Deaerators are used for progressive removal of air or gas which is continually formed. Even the smallest particles of (micro bubbles) are captured and expelled.
The Deaerator is the single most efficient air removal method, and will ensure that time is saved during commissioning as well as preventing installer call outs to vent trapped air. Install before the pump to prevent air pockets being trapped at the impeller and disabling the pump. Most professional solar installers recommend this method of protection for long term system efficiency.
Downloads
Safety Relief Valve

As with any sealed system or circuit, a safety pressure release valve is required as mandatory for safety, should the system pressure exceed its designed safe maximum.
As a safety device, it is critical that the valve can be relied on to act when required, in the case of solar systems, the valve to do this must be designed to function continuously at extremely high temperatures. All components of the Solar Safety Valve have been redesigned or tested to be solar rated. Installers should under no circumstances use standard design heating safety valves in solar systems.
Downloads
Drain or Fill Valve

- High temperature solar rated valve for use with solar Glycol fluids.
- Complete with hose connection for alternate filling/drain valve
- Self sealing half-inch male system connection
- Removable lever
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Flexible Pipe System
Making the connection between the solar collector on the roof, and the system below creates different set of problems for the installer. Yes, it can be achieved by simply using copper tube, but the high temperatures achieved (therefore traditional soft solder joints should not be used) difficult sets and bends required, and installation time are all factors.
The generally accepted method is to use a flexible, high temperature stainless steel pipe system. This can be used to enter the internal roof space to accommodate an easier connection to the copper flow and returns, or carry the fluid medium direct to the pump station (by far the easiest and most efficient method.
The most common type of SS flexible pipe is of an 'Annular' design, i.e., the corrugated form allows flexibility. The more efficient design is however 'Helical', where flexibility is achieved by using a spiral configuration. This eliminates the dead flow areas in the pipe created by the corrugations, and significantly increases achievable flow rates through the pipework, the benefit of which is the pipe can in some cases be of a lesser diameter. The other benefit is that a range of fittings can be used if necessary to make connections between the pipes, and eliminate the requirement for special tools to make flanged joints.
A one piece pipe run between the collector and the pump station removes the risk of leaks, either at time of installation, or later, when pipework has settled or undergone system expansion and contraction.
The pipe can be supplied in coils, or in pre-insulated twin pipe packs to set lengths. Being pre-insulated also offers other benefits, which can only be appreciated by those who have spent frustrating hours labouring on pushing metres of pipe through long lengths of this specially designed lagging which is specified for Solar installations.
Also note that the lagging should have additional attributes for above roof weatherproofing and a surface that will deter birds from causing damage (they sometimes see this insulation as suitable nesting material)
A full range of fittings is available for both helical and annular pipe.
Solar Fill

SPECIAL OFFER JUST £380+ VAT order code: FP001
Description: Pump has pressure limiter fitted, 25 Litre reservoir tank, Strainer and fill connection with a ¾ male connection. An alternative reservoir connection is available for pumping from an external container. 240 volt as standard, 110volt versions are available to order.
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Miscellaneous Solar Products
3/8 isolating ball valve Solar rated
Use with the solar auto air vent for isolating the AAV for maintenance
Expansion Vessel Connection Kit
Install in conjunction with the Solar expansion vessel. This kit includes a wall fixing bracket, a self closing system isolation valve (so that the vessel could be removed for maintenance without draining the fluid from the system). A pre-formed stainless steel flexible is also provided to connect the vessel to the system at the connection point provided on the Solar Pump and Control Station.
Self Sealing compression couplings
22mm or 15mm compression for pipe connection x 3/4bsp flat face/o ring seal onto the pump station. Eliminates the use of jointing compounds, and ensures the integrity of the seal.
Brass Pipe Inserts
22mm brass inserts used inside the copper pipe to protect against over compression. Use on collectors where 22mm braised spigots are on the collector, protects against damaging the collector at point of installation.
For more information on these and other products we carry please contact us.
