CITY 1.24 and 2.24 GN CITY 1.24 and 2.24 B/P

5. HYDRAULIC SPECIFICATIONS
5.1 Circulator
The circulator incorporated in the boiler is equipped
with a 3-speed motor with a output consumption of
80 W supply. It is factory-set on high.
Remark
For boilers also producing domestic hot water (City
2.24 or 1.24 plus storage cylinder), the circulator can
if required be set on intermediate. It is nevertheless
recommended, for reasons of comfort, to leave it on
high.
For installations requiring greater hydraulic performance
it is possible to replace the motor with a more
outputful one (pack HA 209) with a output consumption
of 93 W.
5.2 8 litre expansion tank
CITY boilers are equipped as standard with an 8 litre
tank (initial pressure 0.75 bar). The total water volume
is determined in accordance with the static head
of the installation and for an average water temperature
of 80°C (flow: 90/return:70).
5.3 12 litre expansion tank
CITY boilers can optionally be fitted with a 12 litre
expansion tank (initial pressure 0.75 bar) (pack HA
208).
6. INSTALLATION
6.1 Regulations
Installation and maintenance regulations
The appliance must be installed and maintained by a
qualified professional in accordance with statutory
requirements.
9
Head (mcE)
6
5
4
3
2
1
GV
MV
PV
GV
MV
PV
0
0 200 400 600 800 1000 1200
Flowrate (l/h)
8666N079
1. PV : low speed
2. MV : medium speed
3. GV : high speed
Static head 5 6 7 8 9 10
in metres up to
Total water
volume
Establishments receiving the public
Installation regulations:
80 W motor
93 W motor (option)
138 129 120 111 102 92
Static head 5 6 7 8 9 10
in metres up to
Total water
volume
213 204 195 186 177 167
The appliance must be installed and maintained in
accordance with statutory requirements.