CONTENT
SAFETY INFORMATION ..............................................................................................................................................................................3
DEFINITIONS ...............................................................................................................................................................................................3
SPECIAL ATTENTION BOXES .....................................................................................................................................................................3
OTHER DEFINITIONS ..................................................................................................................................................................................3
DURING BOILER OPERATION ....................................................................................................................................................................4
BOILER WATER ...........................................................................................................................................................................................4
FREEZE PROTECTION FLUIDS ..................................................................................................................................................................4
CONDENSATE REMOVAL SYSTEM............................................................................................................................................................5
1.
INTRODUCTION ...........................................................................................................................................................................................6
2.
TECHNICAL DATA ........................................................................................................................................................................................6
2.1
PERFORMANCE ..........................................................................................................................................................................................6
2.2
2.3
SYSTEM .......................................................................................................................................................................................................7
2.4
MAIN COMPONENTS ..................................................................................................................................................................................7
2.5
GENERAL INSTALLATION INFORMATION .................................................................................................................................................8
2.6
ELECTRICAL ................................................................................................................................................................................................8
2.7
2.8
SYSTEM VOLUME .......................................................................................................................................................................................9
2.9
BOILER SCHEMATIC ...................................................................................................................................................................................9
2.10
BOILER INFORMATION MENU ...................................................................................................................................................................12
3.
GENERAL BOILER INFORMATION .............................................................................................................................................................13
SERVICE CLEARANCES .............................................................................................................................................................................13
3.1
SELECTING THE BOILER LOCATION ........................................................................................................................................................14
3.2
POSITIONING THE BOILER ........................................................................................................................................................................14
3.3
FIT THE BOILER ...........................................................................................................................................................................................14
3.4
FLUSHING THE SYSTEM ............................................................................................................................................................................14
3.5
GAS SUPPLY ................................................................................................................................................................................................14
3.6
ELECTRICAL SUPPLY .................................................................................................................................................................................15
3.7
AIR SUPPLY .................................................................................................................................................................................................15
3.8
DOMESTIC HOT WATER MODE .................................................................................................................................................................15
FOR DUO-TEC 40 AND 1.33 WITH INDIRECT TANK .................................................................................................................................15
3.9
FROST PROTECTION MODE ......................................................................................................................................................................15
3.10
PUMP PROTECTION ...................................................................................................................................................................................15
3.11
GAS PIPING .................................................................................................................................................................................................15
4.
VENT SYSTEM .............................................................................................................................................................................................16
4.1
VENTING INSTRUCTIONS ..........................................................................................................................................................................17
CONCENTRIC VENT SUPPORT .................................................................................................................................................................18
FLUE OPTIONS ............................................................................................................................................................................................18
CONCENTRIC VENT SCREW PLACEMENT ..............................................................................................................................................19
SEPARATED FLUE TERMINALS .................................................................................................................................................................20
TWO PIPE VENT SUPPORT ........................................................................................................................................................................21
5.
BOILER LOCATION ......................................................................................................................................................................................23
6.
CENTRAL HEATING SYSTEM .....................................................................................................................................................................23
7.
FILLING THE CENTRAL HEATING SYSTEM ..............................................................................................................................................24
8.
TOXIC CHEMICALS .....................................................................................................................................................................................25
9.
HEATING SYSTEM AND REFRIGERATION ................................................................................................................................................25
10.
INSTALLATION .............................................................................................................................................................................................25
10.1
CONNECT THE PIPEWORK ........................................................................................................................................................................25
11.
ELECTRICAL CONNECTIONS .....................................................................................................................................................................25
11.1
11.2
11.3
MANAGEMENT OF 0-10V INPUT ................................................................................................................................................................27
11.4
ACCESSORIES ............................................................................................................................................................................................27
12.
SPECIAL FUNCTIONS .................................................................................................................................................................................30
12.1
COMMISSIONING ........................................................................................................................................................................................30
12.2
DE-AERATION FUNCTION ..........................................................................................................................................................................31
12.3
CHIMNEY SWEEP FUNCTION ....................................................................................................................................................................31
12.4
12.5
13.
OPERATING THE BOILER ...........................................................................................................................................................................33
13.1
13.2
BOILER CONTROLS ....................................................................................................................................................................................33
13.3
GAS VALVE ...................................................................................................................................................................................................34
CHANGING THE TYPE OF GAS ..................................................................................................................................................................34
14.
PARAMETER SETTINGS .............................................................................................................................................................................34
14.1
ADJUSTING MAXIMUM HEATING POWER ................................................................................................................................................36
15.
ANNUAL SERVICING ...................................................................................................................................................................................36
15.1
HYDRAULIC UNIT ........................................................................................................................................................................................37
15.2
FINAL COMMISSIONING .............................................................................................................................................................................37
15.3
FINAL ASSEMBLY ........................................................................................................................................................................................38
15.4
USER INFORMATION ..................................................................................................................................................................................38
16.
BOILER OPERATION ...................................................................................................................................................................................38
16.1
CENTRAL HEATING MODE .........................................................................................................................................................................38
16.2
DOMESTIC HOT WATER MODE .................................................................................................................................................................38
16.3
FROST PROTECTION..................................................................................................................................................................................38
16.4
PUMP ............................................................................................................................................................................................................38
16.5
LWCO - LOW WATER CUT OFF ..................................................................................................................................................................38
16.6
SAFETY FLUE THERMOSTAT .....................................................................................................................................................................39
16.8
REPLACEMENT OF PARTS .........................................................................................................................................................................39
AUTOMATIC CALIBRATION FUNCTION .....................................................................................................................................................39
17.
ROUTINE SERVICING .................................................................................................................................................................................40
IMPORTANT NOTES PRIOR TO SERVICING .............................................................................................................................................40
18.
18.1
DRAINING THE BOILER ..............................................................................................................................................................................41
18.2
ELECTRODES ..............................................................................................................................................................................................41
20.
WIRING DIAGRAMS .....................................................................................................................................................................................44
7703473 (02-12/19)
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