Rinnai E50C Installation & Servicing Instructions Manual page 87

Sommaire
1 Safety and general instructions ......................................................88
1.1 Designated use .................................................................88
1.2 Hazard defi nitions ..............................................................88
1.3 Symbol defi nitions .............................................................88
1.4 The following instructions must be followed ......................89
1.5 Follow these instructions for the space heating water .......90
1.6 Tools, materials and additional equipment ........................90
1.7 Relevant Installation, Service and User manuals ..............91
1.8 Disposal .........................................................................91
2 Regulations and guidelines ............................................................91
3 Description of the boiler .................................................................92
4 Packaging and transportation ........................................................93
4.1 Scope of delivery ...............................................................93
4.2 Transportation ...................................................................93
5 Installation .........................................................................94
5.1 Requirements for the installation room .............................94
5.2 Fitting the boiler .................................................................95
5.3 Dimensions ........................................................................96
5.3.1 Clearances from boiler ......................................................97
5.4 Technical specifi cations .....................................................98
6 Connecting the boiler .....................................................................99
6.1 Central heating system ......................................................99
6.1.3 Safety valve .....................................................................104
6.1.4 Low water cut off .............................................................104
6.2 Boiler expansion tank ......................................................104
6.3 Underfl oor heating system (plastic pipes) .........................104
6.4 Gas supply connection ....................................................104
6.4.1 Gas connection with natural gas .....................................105
6.5 Hot water supply ..............................................................106
6.5.1 Domestic Water quality ....................................................106
6.5.2 Domestic water treatment Accessory .............................106
6.5.3 DHW Expansion Tank ......................................................107
6.5.3 Installing a Thermostatic Mixing Valve ...........................107
6.5.4 Installing a valve kit .........................................................108
6.5.5 Pressure relief Valve ........................................................108
6.5.6 Programming domestic hot water preheat ......................108
6.6 Condensate drain pipe ....................................................109
6.7 Vent system and air supply system .................................110
6.7.1 Intake / Exhaust Guidelines .............................................110
6.7.2a Examples vent and air supply systems (parallel) ............ 111
6.7.2b Examples vent and air supply systems (low profi le PP) ..112
6.7.3 Installation of the vent system .........................................113
6.7.3.1 Conversion from parallel to concentric vent system ........114
6.7.3.2 Installing air fi lter .............................................................114
6.7.4 Vent/air intake terminal position ......................................115
6.7.5 Direct vent closet and alcove installation ......................117
6.7.6 Dimensioning of the exhaust and air intake duct ...........118
6.7.7 Combustion air and vent piping lengths. .........................119
6.7.8 Calculation of compensation factor .................................120
6.7.9 Room Air System (indoor combustion air) .......................121
7 Electrical connections ..................................................................124
8 Boiler controls .......................................................................128
8.1 Explanation of the function buttons .................................129
9 Starting up: Filling and de-aerating the boiler and installation .....130
9.1 Requirements of the water system ..................................130
9.2 Filling the heating system ................................................131
9.3 Hot water supply ..............................................................132
10 Adjustments .......................................................................134
10.1 Altering adjustments ........................................................134
10.2 Activating factory settings (green button function) .........137
11 Isolating the boiler .......................................................................137
12 Commissioning .......................................................................138
12.1 Testing for gas leaks ........................................................139
12.2 Testing the Ignition Safety shut off device .......................139
12.3 Checking the O ...............................................................140
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12.4 Measuring the ionization current .....................................141
12.5 Installing the casing .........................................................141
13 Maintenance .......................................................................142
13.1 Periodic examination of venting systems and boiler .......142
13.2 Inspection .......................................................................142
13.2.1 Visual inspection for general signs of corrosion ..............143
13.2.2 Measuring the ionization current .....................................143
13.2.3 Measuring the inlet gas pressure ....................................143
13.2.4 Testing for gas leaks ........................................................143
13.2.5 Carrying out a pressure test of the heating system .........143
13.2.6 Checking venting systems ...............................................143
13.3 Maintenance activities .....................................................144
13.3.1 Reset service interval counter .........................................147
13.4 Limited warranty ..............................................................147
14 Parts of the boiler .......................................................................148
15 Blocks and Errors .......................................................................149
15.1 Error indication (short reference) .....................................149
15.2 Blocks .......................................................................150
15.3 Errors .......................................................................151
15.4 Other Errors .....................................................................155
16 Spare parts .........................................................................72
17 Parts list vent system ...................................................................156
18 Common venting guidelines .........................................................158
Appendix A - Outoor Reset Sensor Data and
Resistance table NTC sensors .....................................159
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