Austausch des Heizkessels für den Stadtrat von Aylsham

1) New Town Hall Main Boiler - LOCATION, AYLSHAM, NORFOLK, NR11 6EL • Supply and install new 2no. Commercial 48KW (total 96KW) high efficiency condensing boilers. Minimum 5 years manufacturer's guarantee • Boilers to be fitted in existing boiler room (cellar) at a suitable height to reduce risk from flooding. • Existing pipework to be re-routed to new boilers. • Supply and instal new flue liner in chimney stack. This may be subcontracted out but subcontractor will report to the successful contractor. • Flues to be connected to new flue liner. • Old boiler to be removed from site and disposed of. • New boilers to be plumbed in to new plate heat exchanger to split system up and keep existing system open vent, utilizing the existing header tank in loft. • New larger circulation pump fitted to serve original heating system. • System to be split into 2 zones. The first zone will be the original heating system and the second zone will consist of the Council Chamber and Archives room (first floor). • 2no. motorized valves. • New 35mm copper pipe work from boiler area installed to existing heating system. • System to be adapted to a sealed pressurized system with expansion vessel and filling loop. • System filter fitted to filter out debris in the heating system. • New 28mm copper gas pipe installed from gas meter to new boilers. • Boiler to be wired in to 3-amp fused spur. • Supply and fit HIVE smart heating controls to control 2 x zones for use with App. Provide instructions on app • Condense pipe from boiler plumbed into nearest drain. 2) Replace 2no. gas heaters with Fan assisted heaters • New fan assisted heater to be installed to replace gas heaters (2no.). One on the ground floor (Green Room) and one on the first floor (council chamber). • New pipe work from new boiler area fitted to new radiator locations. Pipe work to be surface mounted in copper but hidden, where possible underflooring. • Existing gas heaters to be removed and disposed of to make way for new radiators. • System will be flushed to comply with manufacture instructions, to remove sludge and debris, using a chemical cleaner. • System corrosion inhibitor will be introduced into the heating system. • Green room heater to be connected to Zone 1, council chamber to be connected to Zone 2. 3) Installation of 3no. Radiators • Installation of 2no. radiators in the archive room (zone 2). • Installation of 1no. radiator in the ground floor east toilet (zone 1). • Area to be connected with a 2 port valve and thermostat. • All necessary pipework supplied and fitted. 4) Other • Boiler will be commissioned and registered with Gas Safety Certificate • Warranty to be provided (with option of extension where available). • The Town Hall is a working building. All works to be programmed in in coordination with Town Council officers so that there is either minimal impact on hirers of the building, or the building can be closed for safety reasons. • Any damage to the fabric of the Town Hall should be made good • All waste materials to be cleared from site in accordance with the contractor's waste transfer licence. • The successful contractor will be expected to provide a risk assessment and method statement for the works, and provide evidence of Public Liability insurance. • A site visit is strongly recommended prior to pricing for works. This can be arranged through the Town Council's Maintenance Manager Gavin Watson (email gavin.watson@aylsham-tc.gov.uk or call 07585 600539)