Specifications
2.1 BOILER ROOM
2.1.1 ACCESSIBILITY
The boiler room must be large enough to allow proper access to the
boiler. The following minimum distances (mm) around the boiler are
required:
- at the front 500 - at the sides 100
- at the rear 150 - above 700
2.1.2 VENTILATION
The boiler room must be fitted with top and bottom vents as shown in
the table below.
2.1.3 BASE
The boiler must be laid on a base made of non-combustible materials.
2.2 CONNECTIONS
2.2.1 CHIMNEY CONNECTION
The boiler can be connected to a suitable flue or to chimney by a metal
pipe rising at an angle from the boiler to the chimney. It must be easily
removable in order to give access to the flue pipes when servicing the
boiler. A draught regulator must be installed on the chimney in order to
stabilise negative pressure.
Because of their high level of performance our boilers
produce flue gas discharge at low temperatures. This
can cause condensation in some chimney flues. Your
installing engineer will advise you whether you need to
install a flue pipe in your chimney.
Important
Boilers must be installed by an approved engineer, in
accordance with current local standards and regulations.
2.2.2 CENTRAL HEATING CONNECTION
2.2.2.1 Examples of basic circuit configurations
The drain cock and safety valve must be connected to the waste
water disposal system.
1. Motorised 3-way manual mixer valve
2. Safety valve preset to 3 bar with pressure gauge
3. Circulator
4. Non-return valve
5. System filling valve
6. Expansion tank
7. Room thermostat (fig. 2)
8. ACV 13 controller (see controller kit on page 5) (fig. 3)
9. Central heating isolation valve
10. Discharge outlet
Fig. 2: Hydraulic diagram showing circulator controlled
by a room thermostat.
2 INSTALLATION
6
2
3
4
7
5
9
9
10
1
6
2
3
4
8
5
9
9
10
Fig. 3: Hydraulic diagram with motorised mixer valve
Fig. 1: Boiler room ventilation and chimney connection
A
B
F
D
C
E
A. Top vent
B. Bottom vent
C. Draught regulator
D. Inspection cover
E. Chimney height
F. Chimney diameter
3
Ventilation 25-F25 35-F35 45-F45 55-F55 G25 G35 G45 G55
Min. fresh air
requirement m
3
/h 50/66 66/90 84/122 100/138 45 63 81 99
Top vent (A) dm
2
22221,5 1,5 1,5 1,5
Bottom vent (B) dm
2
1,5 1,5 1,5 1,5/2,1 1,5 1,5 1,5 1,7
Chimney
E = 5m Ø min.F mm 158/182 182/213 208/248 226/266 160 189 215 236
E = 10m Ø min.F mm 133/153 153/179 175/209 190/223 135 159 181 199
E = 15m Ø min.F mm 130/138 138/162 158/188 172/202 130 143 163 179