Apply to: Restore circulation and effectiveness in systems older than six months that have a significant amount of corrosion debris causing poor circulation and cold spots. Prepare for the installation of new components.

Sentinel X400 High Performance Cleaner should normally be dosed at 1% of system volume, i.e. 1 litre per 100 litres of system water. For systems with severe fouling, the dosage rate can be increased up to 5%. Why? Contamination from the manufacturing and installation processes can accelerate corrosion of new components. According to UK Building Regulations Part L Domestic Heating Compliance Guide, a central heating system should be thoroughly cleaned and flushed out before the installation of a new boiler.quart of Sentinel X400 is sufficient to treat a typical residential system of 25 gallon. Larger systems should be dosed at 1% of system water. To clean an existing system, Sentinel X400 should be circulated, preferably at normal operating temperature, with all valves open and the pump turned to maximum flow for a minimum period of 2 hours or until satisfactory performance is restored. Sealed Systems: If the system is empty, add to any convenient point before filling. If full, use a Sentinel Dosing Vessel to inject via the filling loop or other access point.

For details of how to dose using the Rapid-Dose format of this product, please watch the Rapid-Dose video. How does it work? Contains a specialised dispersant to penetrate and lift sludge. Holds sludge in suspension ready for flushing. If a system has not been cleaned prior to use, all of the aforementioned issues for new systems will be present, with the installation debris causing issues and damage to the system.

About the problem

litre, 1 300ml aerosol or 1 275ml tube of Sentinel X400 High Performance Cleaner is sufficient to treat a typical domestic system of up to 10 radiators. Larger systems should be dosed with twice this amount. As for new systems, X300 Cleaner for New Systems is designed to target installation and manufacture debris and contaminants. Once cleaned, it will passivate the metal surfaces and prevent copper deposition. Why?A build-up of magnetite sludge and corrosion debris can cause cold spots in radiators and uneven heat distribution. Cleaning an old system before8 installing a new component such as a boiler or circulation pump prolongs the effective life of the new component reducing maintenance and replacement costs. To clean an older system in accordance with BS 7593, this product should be circulated (preferably at normal operating temperature, with all valves open and the pump turned to maximum flow) for a minimum period of 2 hours or until satisfactory performance is restored. Use in conjunction with a powerflushing device to achieve a more rapid clean.

Sentinel X800 Fast Acting Cleaner eliminates magnetite and limescale deposits from heat exchangers, radiators, underflor heating floors and pipework. It restores more uniform distribution of heat in existing installations, for a better heated home and reduced energy bills. How does it work? Acts as an emulsifier for oils and greases and a dispersant to lift and suspend particulate debris. Holds contamination in suspension ready for flushing. In this scenario, your customer may struggle to understand how the system could possibly need cleaning. New systems can easily succumb to debris during and after installation as a result of carelessness in the manufacture and installation processes. If the deposits you are dealing with are proving to be particularly stubborn, not remedied by the application of the aforementioned cleaners, a more potent product may provide the solution. Sentinel Deposit Remover is a mildly acidic formula designed to dissolve obstinate magnetite and scale deposits. X300 Cleaner for New Systems is designed to target excess flux residues, greases, and oils in addition to installation debris and sludge. Not only this, but X300 passivates the metal surfaces and helps to prevent copper deposition, a common cause of pinhole corrosion in radiators. Ideally, the product should be added at the first filling of the system. The water should then be circulated at normal operating temperatures for 2 hours before being flushed out. If you are using cold water, leave to circulate for 24 hours. Powerflushing is not necessary when using this product. The system I’m dealing with is not new, but is less than 6 months oldRecommended dosage: 1 litre of X800 is sufficient to treat a typical domestic system of up to 10 radiators. For maximum performance circulate from 1-24 hours.X800 is non-aggressive and can be left in the system over 24 hours, however this may cause debris to re-settle reducing effectiveness. If it is not possible to heat the water, the circulation time should be extended to at least 24 hours. After cleaning, the system should be drained and flushed until the water runs clear. On refilling, the system should be treated with Sentinel X100 Inhibitor or Sentinel X500 Inhibited Antifreeze. To clean an older system in accordance with BS 7593 it is recommended that this product is used withpowerflushing equipment. In this scenario, administer Sentinel X800 Fast Acting Cleaner via thepowerflushing equipment, following theequipment manufacturer's instructions. Alternatively, circulate theproduct (preferably at normal operating temperature, with all valves open and the pump turned tomaximum flow) for a minimum period of 1 hour or until satisfactory performance is restored. Why? Removes potentially damaging contaminants and restores system effectiveness, reducing future breakdowns and increasing system life. Unrivalled chemical technology reduces circulation time to just 1 hour. Designed for new central heating systems, the Sentinel X300 cleanser flushes out flux installation debris from new indirect central heating systems. This prepares the system for the addition of an inhibitor, which will protect the system components and prolong their effective life and is essential for the prevention of sludge and scale build up. Emulsifiers in the liquid assist in the removal of grease and oils from new radiators. Dispersants lift insoluble flux, metal fillings and dust from the system. A single 1 litre bottle should be plenty to dose about 8 to 10 panels in your radiators. It can be added easily using a dosing vessel or the adaptor supplied. Ensure the system is filled before adding the X300.