Altecnic Robokit ½" Seal System Kit (4-80 Litre) Including Bracket

Sealed Systems are the most commonly used form of central heating used in Europe, and most of the other parts of the
world.
Ease of installation makes it particularly attractive to the installer, alleviating the need to fit, feed and vent tanks in a central heating system.
A closed or sealed heating system must include an expansion vessel and other ancillary components ( sealed system kit) to accommodate expansion of the water.

Principle of Operation
In a closed heating system water cannot be compressed so any increase in volume, created by an increase in temperature, has to be accommodated by an expansion vessel.
When water is cold, the pre-charge pressure forces the diaphragm against the tank towards the inlet.
As the temperature increases, the expanded water volume pushes against the diaphragm creating additional volume for the water to enter.
When the temperature decreases, the pre-charge pressure forces the water from the tank and back into the main heating system.
This maintains a constant pressure within the heating system helping to reduce energy consumption.

Robokit Extra Vessel and Sealed System Kit
The Robokit Extra consists of an expansion vessel with a sealed system kit which contains;
• Expansion vessel
• Wall mounting bracket
• Quattro 4 way connector
• Safety relief valve complete with pressure gauge
• Filling loop

NOTE: The expansion vessel must be sized to suit the volume change of water within the heating system.

Advantages
• System Flexibility - due to component siting alternatives.
• Cost Savings - due to considerably reduced installation time.
• No Feed and Expansion Tank - hence avoiding “pumping over” problems, risk of freezing up etc.
• Longer Life - due to virtual elimination of corrosion problems.
• Noise Reduction - due to higher system pressure, boiler noise (localised heating) is significantly reduced or eliminated.
• Low Maintenance Costs - as equipment is virtually maintenance free, other than for periodic operational checks.
• The Safety valve should be fitted either on, or close to the boiler on the flow pipe.
• The pressure gauge should be fitted preferably close to the expansion vessel and/or the boiler, in such a position that it can be easily read from the filling point.
• The filling Point should be near the key components, particularly the pressure gauge, and should be a temporary connection to allow filling from the water mains, incorporating a double check valve and isolating valves.

Main Components
Expansion Vessel
Altecnic’s range of expansion vessels for heating systems are manufactured to meet the requirements of PED 97/23/EC
Directive and BS EN 13831:2007 ‘Closed expansion vessels with built in diaphragm for installation in water’.
The two halves of the vessel and the diaphragm are retained by a crimped collar to give a pressure tight seal.
Non-replaceable diaphragm.
The water side is provided with a male threaded, for the expansion pipe.
The air side has an air charging valve of the kind used on tyres, protected by a large plastic cap.
The standard finish is an epoxy coated red.
The maximum working pressure is 4 bar and the maximum system temperature is 100°C.
Altecnic expansion vessels are all tested according to the Pressure Systems Directive.

Main Components
Ecofil Filling Loop
The Ecofil filling loop comprises a double check valve with integral ball isolating valve, flexible hose and a ball isolating valve.
The inlet connection to the double check and ball valve is supplied with a compression nut and olive for use with copper tube.
The Ecofil filling loop complies with water regulations and uses WRAS approved components.
Water regulation G24.1 and 24.2 compliant.
Robokit Extra Sealed System Kit
Altecnic have produced their own combination kit, the Robokit Extra, which contains all the essential components required for a sealed system installation.
It enables all the installation requirements detailed earlier to be meet.

The Robokit is the easiest kit to install and comprises of:
• safety relief valve complete with pressure gauge and 15mm compression outlet connection
• filling loop with braided hose,
• double check valve with integral ball isolating valve
• isolating valve
• pressure gauge
• four-way manifold with tappings for direct system connection via a 15mm nut and olive cone and connection for the expansion tank.
• wall mounting bracket for the expansion tank