600 Regular - Modulating condensing boiler - Designed for the UK market - Suitable for open vented systems - Can also be used on sealed systems - Only for use with 230v controls - No pump over run required
Water Treatment Code of practice for treatment of water in domestic hot water and central heating systems BS 7593: 1992 Poor system design leading to ingress of air Flush system in accordance with BS 7593: 1992 Add an inhibitor such as Sentinal X100 to the System Make sure Softened water is not used in heating system