Hamworthy F40H Installation, Commissioning And Operating Instructions

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Hamworthy F40H Installation, Commissioning And Operating Instructions Manual pdf 24 page image

HAMWORTHY HEATING LTD18FLEET H series 500001212/F5.0 BOILER ASSEMBLY5.1 GeneralBoilers are despatched to site as fully assembled units. The flue components (where applicable) and pipe workkit (where applicable) are the only items that will need assembling on site.During assembly it is important to take care to prevent damage to the boiler casing.Boiler positioning must allow the minimum clearances detailed in Section 3.0 to facilitate access for flue and pipework connections as well as maintenance. The boiler must be installed on a solid floor. In locating the boiler apallet truck is recommended so as to avoid damage to the casing partsHealth and safety. Due to the weight of the boiler, care must be taken when manoeuvring the boiler. HHLsuggest the use of a pallet truck5.2 Water ConnectionsThe connections provided on the boiler (refer to Appendix E and figure 4.4) are suitable for direct connection tothe system pipe work. However HHL recommend the use of individual isolating valves, which should be fitted toeach module to enable isolation from the system. However, the arrangement must comply with the requirements ofBS 6644.When installing water system pipe work, it must be self supporting and care must be taken to ensure that unduestress is avoided on the boiler flow and return connections. It is recommended that unions are fitted local to theboiler and outside of the casing, to permit future servicing requirements.Each module is fitted with safety valve rated at 6bar. The valve discharge pipe is routed to the rear of the boiler,where it must be piped to discharge via a tundish (not HHL supply) suitably located for ease of visibility.The Fleet is designed to operate at 20°C ∆T across the flow and return. Should the flow rate drop, the boilercontrols will modulate the burner to maintain 20°C ∆T. The boiler module is fitted with a single speed circulatingpump and flow is controlled through a balancing valve, which must be checked and set during commissioning. Asa safety precaution, a flow switch is fitted to the boiler heat exchanger to shut the system down in the event ofsudden adverse flow conditions.Where using Hamworthy Heating Ltd pipe work kits, assembly of these is detailed in Instruction Manual500005132 supplied with kit.5.3 Flue Connection5.3.1The Hamworthy Fleet boiler is designed for use with the following flue systems supplied by Hamworthy - see Appendix C80/125mm concentric room sealed, balanced flue system for rear/side through the wall discharge.100/150mm concentric, room sealed, balanced flue system for remote discharge, horizontal or vertical.100/130 & 150mm separate air and flue ducts, room sealed, balanced flue system for remote discharge.100/130 & 150mm flue duct, for connection to an open flue (chimney) system.Flue systems should be designed with reference to BS 5440 part 1, IGE/UP/10 and Third Edition of the 1956 Clean AirAct Memorandum.5.3.2Flue installations can be configured to suit a number of applications, see Appendix C, but must comply with one of thefollowing options:Room Sealed.Type C13: Horizontal balanced flue.Type C33: Vertical balanced flue.Type C53: Separate intake and discharge ducts terminating in different pressure zones.Open Flue.Type B23: Intake from ventilated plant room and discharge via horizontal/vertical flue.For room sealed applications, the flue ducts must be supplied by HHL.For open flued applications, it is advisable to use the HHL supplied ducts to the point of conenction to a chimney.