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FASTflo LWH56, Installation Design Manual

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FASTflo LWH56 Installation Design Manual Download Page 19

Dimensions WHX56 and LWHX56

Fig No.16

Summary of Contents for LWH56

Page 1: ...uture FASTflo Installation Design Guide This manual must be kept with the appliance October 2010 Part No E835 Continuous Flow Wall Hung Balanced Flue Water Heaters for Natural Gas and Propane WH42 WH5...

Page 2: ...ce on Andrews Water Heaters must be carried out by properly qualified personnel and therefore no liability can be accepted for any damage or malfunction caused as a result of intervention by unauthori...

Page 3: ...e Unvented System Kits 10 Typical Installation Single Heater with ST Range Storage Cylinder 11 Typical Installation Two Heaters with ST Range Storage Cylinder Quick Connect Cord and Secondary Return 1...

Page 4: ...ot Outlets Water Supply Pressure Min 1 0 bar Max 10 0 bar Min flow 3 5 ltrs min 1 Stop cock Gas rate for NG units WH42 5 1 m3 hr WH56 WHX56 6 5 m3 hr Gas rate for Propane units LWH42 1 9 m3 hr LWH56 L...

Page 5: ...6 Expansion valve tundish 7 Andrews bronze pump c w ball valve unions part no B249 Water Supply Pressure Min 1 0 bar Max 10 0 bar Min flow 3 5 ltrs min Bronze secondary return pump see Fig No s 13 and...

Page 6: ...Gas rate for NG units WH42 5 1 m3 hr WH56 WHX56 6 5 m3 hr Gas rate for Propane units LWH42 1 9 m3 hr LWH56 LWHX56 2 5 m3 hr Dynamic Pressure NG 20 mbar Propane 37 mbar 1 Andrews WH and WHX Multiple W...

Page 7: ...Water Supply Pressure Min 1 0 bar Max 10 0 bar Quick Connect Cord Kit part no B286 Gas rate for NG units WH42 5 1 m3 hr WH56 WHX56 6 5 m3 hr Gas rate for Propane units LWH42 1 9 m3 hr LWH56 LWHX56 2...

Page 8: ...turn pump see Fig No s 13 and 14 Gas rate for NG units WH42 5 1 m3 hr WH56 WHX56 6 5 m3 hr Gas rate for Propane units LWH42 1 9 m3 hr LWH56 LWHX56 2 5 m3 hr Dynamic Pressure NG 20 mbar Propane 37 mbar...

Page 9: ...S flow Hot Outlets Cold Supply Gas rate per NG units WH42 5 1 m3 hr WH56 WHX56 6 5 m3 hr Gas rate for Propane units LWH42 1 9 m3 hr LWH56 LWHX56 2 5 m3 hr Dynamic Pressure NG 20 mbar Propane 37 mbar 1...

Page 10: ...1 8 0 38 22 8 0 30 18 0 0 24 14 4 0 20 12 3 0 18 10 6 The flow rate will vary dependant upon the temperature selected at outlet and the incoming water temperature The flow rate can be calculated using...

Page 11: ...llation manual is available from our sales department Single remote controller System controller Kit Part No B287 Typical installation System operation The control panel randomly selects some heaters...

Page 12: ...ater heaters installed see table below This valve must be located at the top of the storage unit see Fig No 10 In addition the size of the expansion vessel must also be increased to suit both the stor...

Page 13: ...G units WH42 5 1 m3 hr WH56 WHX56 6 5 m3 hr Gas rate for Propane units LWH42 1 9 m3 hr LWH56 LWHX56 2 5 m3 hr Dynamic Pressure NG 20 mbar Propane 37 mbar 1 2 3 4 5 6 7 1 Stop cock 2 Strainer 3 Pressur...

Page 14: ...oup to suit building design flow rate Gas rate for NG units WH42 5 1 m3 hr WH56 WHX56 6 5 m3 hr Gas rate for Propane units LWH42 1 9 m3 hr LWH56 LWHX56 2 5 m3 hr Dynamic Pressure NG 20 mbar Propane 37...

Page 15: ...ucing valve 4 Non return valve 5 Expansion vessel 6 Expansion valve tundish 7 Andrews bronze pump c w ball valve unions part no B249 8 Combined temperature and pressure relief valve tundish When using...

Page 16: ...ater flows through the heat exchanger and associated components Water Flow litres minute Head Loss bar 0 2 5 2 1 5 1 0 5 0 5 10 15 20 25 30 A suitable 3 speed bronze pump kit with ball valve unions to...

Page 17: ...Pump Curves for Andrews 3 Speed Bronze Circulating Pump Part No B249 Fig No 14 0 P1 W 200 0 0 2 1 160 120 80 40 0 0 4 0 6 0 8 1 0 1 2 1 4 1 6 1 8 2 0 Q 1 s 2 3 4 5 6 7 8 m H SPEED 3 SPEED 2 SPEED 1...

Page 18: ...Dimensions WH42 LWH42 WH56 and LWH56 Fig No 15...

Page 19: ...Dimensions WHX56 and LWHX56 Fig No 16...

Page 20: ...WH42 LWH42 WH56 and LWH56 Pre assembled dual manifold unit dimensions Fig No 17...

Page 21: ...WH42 LWH42 WH56 and LWH56 Pre assembled triple manifold unit dimensions Fig No 18...

Page 22: ...WHX56 and LWHX56 Pre assembled dual manifold unit dimensions Fig No 19 Note Pipework covers are optional...

Page 23: ...WHX56 and LWHX56 Pre assembled triple manifold unit dimensions Fig No 20 Note Pipework covers are optional...

Page 24: ...Baxi Commercial Division Wood Lane Erdington Birmingham B24 9QP Email andrews baxigroup com www andrewswaterheaters co uk Sales 0845 070 1056 Technical 0845 070 1057 October 2010...

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