4
1
2
3
TECHNICAL FEATURES
AND DIMENSIONS
........................................................... pag.
6
1.1
Technical Features .................................................................. pag.
6
1.2
Dimensions .............................................................................. pag.
7
1.3
Technical Data and Main Components .................................... pag.
9
1.4
Side View ................................................................................. pag.
10
INSTRUCTIONS FOR INSTALLERS
................. pag.
11
2.1
Instructions for installation ...................................................... pag.
11
2.2
Installation ............................................................................... pag.
11
2.2.1
Packing ....................................................................... pag.
11
2.2.2
Boiler Location inside a Heat Power Plant ................. pag.
13
2.2.3
Boiler Connection ....................................................... pag.
13
2.2.4
Connection to Chimney .............................................. pag.
13
2.2.5
Notes on Condensate Drain .......................................
pag.
14
2.3
Types of Heating Systems ...................................................... pag.
15
2.3.1
C.H. System Air Vent .................................................. pag.
16
2.3.2
Boiler and System Filling-up & Draining .................... pag.
16
2.3.3
Max Allowable Working Pressure ............................... pag.
17
2.3.4
Safety Valve ............................................................... pag.
17
2.3.5
Gas Mains .................................................................. pag.
17
2.3.6
Hydraulic Compensator or Open Manifold ................. pag.
17
2.3.7
Filter ........................................................................... pag.
18
2.3.8
Ball Valves .................................................................. pag.
18
2.3.9
Feeding Water Quality ................................................ pag.
18
2.3.10 Boiler Antifrost Protection .......................................... pag.
18
2.3.11 Min. Water Flow Rate .................................................. pag.
19
2.4
Boiler Operation ....................................................................... pag.
19
2.4.1
General Description .................................................... pag.
20
2.4.2
Ignition Sequence ....................................................... pag.
21
2.4.3
Supplementary Board ................................................. pag.
22
2.4.4
Domestic Hot Water (DHW) Mode Operation ............. pag.
23
2.5
Boiler Operation in case of technical intervention .................. pag.
23
2.6
Electric Connections ............................................................... pag.
24
2.6.1
Power Supply .............................................................. pag.
25
2.6.1
Wiring Diagram ........................................................... pag.
25
2.6.2
Electric Connection to Ignition PCB ........................... pag.
26
2.6.3
Electric Connection to the Room Thermostat ............ pag.
26
2.6.4
DHW Storage Tank ..................................................... pag.
27
MODULAR BOILER DRIVE (MBD)
OPERATION
.......................................................................... pag.
28
3.1
General Description ................................................................. pag.
28
3.2
Operation and display instructions .......................................... pag.
28
3.2.1
“Mode” Key .............................................................. pag.
29
3.2.2
“Step” Key ............................................................... pag.
29
3.2.3
“+ / -“ Key ................................................................ pag.
29
3.2.4
“Store” Key .............................................................. pag.
29
3.2.5
Service Code .......................................................... pag.
29
3.2.6
Programming Access Procedure ........................... pag.
30
3.2.7
“Stand-by” Key ........................................................ pag.
32
