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Legend | 11. service stop valve (recommended) 38. solar heating system pump station | |||
Only applicable numbers are | 12. temperature gauge | (modulating - mandatory) | ||
mentioned. | (recommended) | A. cold water supply | ||
1. | 13. condensation drainage | B. hot water supply | ||
| (mandatory if the mains water | (mandatory) | C. circulation pipe | |
| pressure exceeds 8 bar) | 14. hot water | D. gas supply | |
3. | T&P valve (mandatory) | 15. expansion valve (mandatory) | E. overflow pipe | |
4. | stop valve (recommended in pipe C 16. expansion vessel (mandatory) | F. heat exchanger supply | ||
5. | and mandatory in pipe A) | 17. | G. heat exchanger return | |
(recommended) | H. overflow safety | |||
6. | circulation pump (optional) | 18. water tank | ||
S1.collector sensor (mandatory) | ||||
9. | drain valve (mandatory) | 19. float valve | ||
S2.tank sensor (mandatory) | ||||
10. manual gas valve (mandatory) | 23. pressure valve (mandatory) | |||
S4.heat exchanger discharge sensor | ||||
20. pressure valve (mandatory) | 37. combined Q/T sensor (optional) | |||
(optional) |
26. air bleed (mandatory)
3.6 Water connections, Unvented
3.6.1Cold water side
See (A) in the installation diagram (3.5 "Installation diagram").
1.Fit an approved stop valve (4) on the cold water side as required by applicable regulations (1.3 "Regulations").
2.The maximum working pressure of the appliance is 8 bar. Because the pressure in the water pipe at times can exceed 8 bar, you must fit an approved
3.Fit a
4.Fit an expansion valve (15) and connect the overflow side to an open wastewater pipe.
3.6.2Hot water side
See (B) in the installation diagram (3.5 "Installation diagram").
Note
Insulating long hot water pipes will prevent unnecessary energy loss.
1.Optional: fit a temperature gauge (12) so you can check the temperature of the tap water.
2.Fit the T&P valve (3).
3.Fit a stop valve (11) in the hot water outlet pipe for servicing.
3.6.3Circulation pipe
See (C) in the installation diagram (3.5 "Installation diagram").
If an immediate flow of hot water is required at
1.Fit a circulation pump (6) of the correct capacity for the length and resistance of the circulation system.
2.Fit a
3.Fit two stop valves for service purposes (4).
4.Connect the circulation pipe to the cold water supply pipe.
Instruction manual SGE | 27 |