Table Of Contents - Biasi Riva Plus HE M296.24SM User Manual And Installation Instructions

1 APPlIANCE DESCRIPTIoN . . . . . . . . . . . . . 8
1.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.2 Control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.3 Isolation valves . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.4 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.5 Operation lights . . . . . . . . . . . . . . . . . . . . . . . . . 9
2 INSTRUCTIoNS FoR USE . . . . . . . . . . . . 10
2.1 Warnings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.2 Refilling procedure . . . . . . . . . . . . . . . . . . . . . . 10
2.3 Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.4 C.h. circuit temperature . . . . . . . . . . . . . . . . . . .11
2.5 D.h.w. temperature . . . . . . . . . . . . . . . . . . . . . . 12
2.6 Extinguishing . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.7 Built in time switch A. . . . . . . . . . . . . . . . . . . . . 13
2.8 Built in time switch B. . . . . . . . . . . . . . . . . . . . . 15
3 USEFUl ADVICE. . . . . . . . . . . . . . . . . . . . 18
3.1 Central Heating. . . . . . . . . . . . . . . . . . . . . . . . . 18
3.2 Frost protection. . . . . . . . . . . . . . . . . . . . . . . . . 18
3.3 Condensate drain . . . . . . . . . . . . . . . . . . . . . . . 18
3.4 Periodic maintenance . . . . . . . . . . . . . . . . . . . . 18
3.5 External cleaning . . . . . . . . . . . . . . . . . . . . . . . 18
3.6 Operational faults . . . . . . . . . . . . . . . . . . . . . . . 19
4 TECHNICAl INFoRMATIoN. . . . . . . . . . . 21
4.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.2 Main diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.3 Technical data mod. M296.24SM/C . . . . . . . . . 24
4.4 Technical data mod. M296.28SM/C . . . . . . . . . 27
4.5 Hydraulic specifications . . . . . . . . . . . . . . . . . . 30
4.6 Expansion vessel . . . . . . . . . . . . . . . . . . . . . . . 30
5 GENERAl REQUIREMENTS . . . . . . . . . . 31
5.1 Related documents. . . . . . . . . . . . . . . . . . . . . . 31
5.2 Location of appliance . . . . . . . . . . . . . . . . . . . . 31
5.3 Flue system . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.4 Gas supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.5 Air supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.6 Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.7 Condensate drain . . . . . . . . . . . . . . . . . . . . . . . 33
5.8 Water circulation (c.h.) . . . . . . . . . . . . . . . . . . . 34
5.9 Domestic water. . . . . . . . . . . . . . . . . . . . . . . . . 35
5.10 Water treatment . . . . . . . . . . . . . . . . . . . . . . . . 36
5.11 Electrical supply . . . . . . . . . . . . . . . . . . . . . . . . 36
6 INSTAllATIoN . . . . . . . . . . . . . . . . . . . . . 37
6.1 Warnings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.2 Precautions for installation . . . . . . . . . . . . . . . . 37
Abbreviations used in the manual:
C.h. = Central heating
D.h.w. = Domestic hot water
D.c.w. = Domestic cold wate
Appliance category: II2H3+ (Gas G20 20 mbar, G30 29 mbar, G31 37 mbar)
Country of destination: United Kingdom (Gb) Ireland (IE)
This appliance conforms with the following EEC directive:
Gas Directive 2009/142/CE
Boiler Efficiency Directive 92/42/CEE
Electromagnetic Compatibility Directive 2004/108/CE
Low Voltage Directive 2006/95/CE
The manufacturer, in the continuous process to improve his products, reserves the right to modify the data expressed in
the present documentation at any time and without prior notice.
The present documentation is an informative support and it can not be considered as a contract to-wards third parties.

TAblE oF CoNTENTS

6.3 Installing the bracket. . . . . . . . . . . . . . . . . . . . . 38
6.4 Overall dimensions . . . . . . . . . . . . . . . . . . . . . . 38
6.5 Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
6.6 Mounting the boiler . . . . . . . . . . . . . . . . . . . . . . 39
6.7 Fitting the flue system. . . . . . . . . . . . . . . . . . . . 39
6.8 Choice of flue . . . . . . . . . . . . . . . . . . . . . . . . . . 40
6.9 Electrical connections. . . . . . . . . . . . . . . . . . . . 42
6.10 External frost protection . . . . . . . . . . . . . . . . . . 44
7 CoMMISSIoNING . . . . . . . . . . . . . . . . . . . 45
7.1 Warnings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
7.2 Electrical installation . . . . . . . . . . . . . . . . . . . . . 45
7.3 Gas supply installation . . . . . . . . . . . . . . . . . . . 45
7.4 Filling the d.h.w. system . . . . . . . . . . . . . . . . . . 45
7.5 Initial filling of the system . . . . . . . . . . . . . . . . . 45
7.6 Condensate pipe and traps . . . . . . . . . . . . . . . 46
7.7 Lighting the boiler . . . . . . . . . . . . . . . . . . . . . . . 47
7.8 Checking the gas pressure at the burner . . . . . 47
7.9 Checking the burner ignition. . . . . . . . . . . . . . . 48
7.10 Checking the ignition device. . . . . . . . . . . . . . . 49
7.11 Checking the flue system . . . . . . . . . . . . . . . . . 49
7.12 Checking the condensate drain pipe . . . . . . . . 49
7.13 Instructing the user . . . . . . . . . . . . . . . . . . . . . . 49
8 GAS CoNVERSIoN . . . . . . . . . . . . . . . . . 51
8.1 Warnings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
8.2 Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
9 MAINTENANCE. . . . . . . . . . . . . . . . . . . . . 53
9.1 Warnings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
9.2 Dismantling the external panels . . . . . . . . . . . . 53
9.3 Emptying the d.h.w. system . . . . . . . . . . . . . . . 53
9.4 Emptying the c.h. system . . . . . . . . . . . . . . . . . 53
9.5 Combustion analysis check . . . . . . . . . . . . . . . 54
9.6 Cleaning the primary heat exchanger. . . . . . . . 54
9.7 Checking the pressurisation in the expansion
vessel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
9.8 Cleaning the burner . . . . . . . . . . . . . . . . . . . . . 54
9.9 Checking the flue . . . . . . . . . . . . . . . . . . . . . . . 54
9.10 Drain pipe inspection . . . . . . . . . . . . . . . . . . . . 54
9.11 Visual inspection of appliance . . . . . . . . . . . . . 54
9.12 Gas pressures and tightness . . . . . . . . . . . . . . 55
9.13 Water inhibitor concentration . . . . . . . . . . . . . . 55
Gas boiler system commissioning check-
list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Service record . . . . . . . . . . . . . . . . . . . . . 59
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