Installation Manual - Unical Lattner Condensing Hot Water Boilers

2This unit is ready for operation with gas A (natural), you can make the transformation to workwith gas E and (propane HD) using proper kit provided by LATTNERCONTENTSWarning:Any operation on the unit must be performed by authorized personnel.Warning: this manual contains instructions to be used exclusively by the installer and/or a competent personin accordance with the current laws in force.The end user MUST not make any alterations to the boiler.Failure to follow the instructions indicated in this manual, which is supplied with the boiler, could cause injuryto persons, animals or damage to property. LATTNER shall not be held liable for any injury and/or damage.1 GENERAL INFORMATION................................................................................................................................................................................ 31.1 Symbols used in this guide .......................................................................................................................................................................... 31.2 Correct use of the appliance ....................................................................................................................................................................... 31.3 Water treatment ............................................................................................................................................................................................ 31.4 Information to be passed over to the person in charge of the appliance ................................................................................................. 41.5 Safety warnings ............................................................................................................................................................................................ 51.6 Data badge .................................................................................................................................................................................................... 51.7 The following instruction ............................................................................................................................................................................... 61.8 Tools, materials and additional equipment .................................................................................................................................................. 71.9 Disposal ........................................................................................................................................................................................................ 71.10General warnings ......................................................................................................................................................................................... 72 TECHNICAL FEATURES AND DIMENSIONS................................................................................................................................................. 82.1 Technical features ........................................................................................................................................................................................ 82.2 Dimensions ................................................................................................................................................................................................... 92.3 Main components ....................................................................................................................................................................................... 102.4 Boiler water circuit ...................................................................................................................................................................................... 112.5 Performances data ..................................................................................................................................................................................... 123 INSTRUCTIONS FOR THE INSTALLER ........................................................................................................................................................ 133.1 General warnings ...................................................................................................................................................................................... 133.2 Code and standard approvals .................................................................................................................................................................. 143.3 Packaging .................................................................................................................................................................................................. 143.4 Minimum clearance for servicing ............................................................................................................................................................. 173.5 Boiler location in a boiler house ................................................................................................................................................................ 173.6 Connections ............................................................................................................................................................................................... 183.7 Installation on existing heating systems .................................................................................................................................................. 183.8 Gas connection ......................................................................................................................................................................................... 193.9 Connection return and flow system pipes ............................................................................................................................................... 203.10 Determination of primary boiler pump or boiler pump system.......................................................................................................... 213.11 Pressure relief valve drain pipe ................................................................................................................................................................ 223.12 Working pressure...................................................................................................................................................................................... 223.13 Connecting the expansion vessel in a single boiler system .................................................................................................................. 223.14 Condensing drain ...................................................................................................................................................................................... 233.15 Water treatment ......................................................................................................................................................................................... 243.16 Combustion air and ventilation openings ................................................................................................................................................. 253.17 Installation of the exhaust and air intake system .................................................................................................................................... 263.18 Room air system for installation using indorr combustion air ................................................................................................................ 273.19 Electrical connection ................................................................................................................................................................................. 29Regulation in force .................................................................................................................................................................................... 29Mains electrical connection 120V - 60 Hz ............................................................................................................................................... 29Room thermostat and / or E8 heating controller connection .................................................................................................................. 30Connection of the additional safety device .............................................................................................................................................. 303.20 Wiring diagrams ......................................................................................................................................................................................... 313.21 Ladder diagrams ....................................................................................................................................................................................... 323.22 Starting up .................................................................................................................................................................................................. 333.23 Filling the system ....................................................................................................................................................................................... 333.24 Initial lighting ............................................................................................................................................................................................... 35Preliminary checks ................................................................................................................................................................................... 35Ignition and switching off ........................................................................................................................................................................... 35Information to be supplied to the user ..................................................................................................................................................... 353.25 Testing ignition safety shut off device ...................................................................................................................................................... 363.26 Burner adjustment ..................................................................................................................................................................................... 373.27 Programming of the operational parameters ........................................................................................................................................... 393.28 Variation of input range for high altitude ................................................................................................................................................... 414 SERVICING SCHEDULE .................................................................................................................................................................................. 414.1 Instructions for inspection and servicing .................................................................................................................................................. 41Table of the resistance values in function of the heating and domestic sensor temperature ............................................................... 424.2 Periodic examination of venting system ................................................................................................................................................... 424.3 Proper procedure for cleaning flue gas .................................................................................................................................................... 424.4 Proper procedure for cleaning the burner ................................................................................................................................................ 424.5 Visual inspection of the flame .................................................................................................................................................................... 434.6 Proper reassembly and resealing of the air intake system .................................................................................................................... 434.7 Verification and cleaning of the condensate evacuation siphon .............................................................................................................. 444.8 Sealing gasket between distributor and boiler body ................................................................................................................................445 FAULT FINDING ................................................................................................................................................................................................ 455.1 Error codes .................................................................................................................................................................................................. 465.2 Request of maintenance ............................................................................................................................................................................. 476. SPARE PARTS .................................................................................................................................................................................................. 48