2
General information
TABLE OF CONTENTS
1
GENERAL INFORMATION ................................................................................................................................................................................. 3
1.1 Symbols used in the manual ........................................................................................................................................................................ 3
1.2 Appropriate use of appliance ........................................................................................................................................................................ 3
1.3 Water treatment ............................................................................................................................................................................................. 3
1.4 Information for user or system manager ...................................................................................................................................................... 3
1.5 Safety warnings ............................................................................................................................................................................................. 4
1.6 Technical data plate ...................................................................................................................................................................................... 5
1.7 General warnings .......................................................................................................................................................................................... 6
2
TECHNICAL FEATURES AND DIMENSIONS ................................................................................................................................................... 7
2.1 Technical features ......................................................................................................................................................................................... 7
2.2 Main components .......................................................................................................................................................................................... 7
2.3 Dimensions .................................................................................................................................................................................................... 8
2.4 Operating data ............................................................................................................................................................................................. 11
3
INSTALLATION INSTRUCTIONS ..................................................................................................................................................................... 12
3.1 General warnings ....................................................................................................................................................................................... 12
3.2 Installation standards ................................................................................................................................................................................ 13
3.3 Handling ..................................................................................................................................................................................................... 14
3.4 Positioning in boiler room .......................................................................................................................................................................... 14
3.5 Burner ......................................................................................................................................................................................................... 14
3.5.1 - Choosing the burner ...................................................................................................................................................................... 14
3.5.1 Installing the burner ......................................................................................................................................................................... 15
3.6 Connecting flame sight glass to burner .................................................................................................................................................... 15
3.7 Furnace door adjustment, opening and closing ....................................................................................................................................... 16
3.7.1 XC-K 124÷XC-K 900 boilers ............................................................................................................................................................ 16
3.7.2 XC-K 1140÷XC-K 1420 boilers ........................................................................................................................................................ 19
3.7.3 XC-K 1820÷XC-K 2160 boilers ........................................................................................................................................................ 17
3.7.4 Important note .................................................................................................................................................................................. 17
3.8 Connecting flue exhaust pipe .................................................................................................................................................................... 18
3.9 Condensation drainage ............................................................................................................................................................................. 18
3.10 Connecting boiler to system ...................................................................................................................................................................... 19
3.11 Filling the system ....................................................................................................................................................................................... 19
3.12 Connecting gas .......................................................................................................................................................................................... 20
3.13 Packaging ................................................................................................................................................................................................... 21
3.14 Assembling casing ..................................................................................................................................................................................... 22
3.15 Electrical connections ................................................................................................................................................................................ 24
3.16 MODULATING MASTER panel board code 37892 .................................................................................................................................. 26
3.17 Programming heating controllers with single boiler ................................................................................................................................. 26
3.18 Hydraulic and electric system connection with panel board code 37892 ............................................................................................... 30
3.19 Programming heating controllers with boilers in cascade ....................................................................................................................... 32
3.20 MODULATING CASCADE panel board code 37900 ............................................................................................................................... 36
3.21 Hydraulic and electric system connection with boilers in cascade panel board code 37892 and 37900 ............................................. 38
3.22 DUAL-STAGE MASTER panel board code 38778 ................................................................................................................................... 40
3.23 Programming heating controllers with single boiler ................................................................................................................................. 40
3.24 Hydraulic and electric system connection with panel board code 38778 ............................................................................................... 44
3.25 Programming heating controllers with boilers in cascade ....................................................................................................................... 46
3.26 DUAL-STAGE CASCADE panel board code 37901 ................................................................................................................................. 50
3.27 Hydraulic and electric system connection with boilers in cascade panel board code 38778 and 37901 ............................................. 52
3.28 Commissioning .......................................................................................................................................................................................... 54
3.29 Adjusting the burner .................................................................................................................................................................................. 55
4
INSPECTIONS AND MAINTENANCE .............................................................................................................................................................. 55
Inspection and maintenance instructions ......................................................................................................................................................... 55
Boiler body maintenance ................................................................................................................................................................................... 56
Maintenance of burner ....................................................................................................................................................................................... 56
Checking ignition electrode ............................................................................................................................................................................... 56
Components to check during yearly inspection ................................................................................................................................................ 56
