Schematic Hydraulic Systems - Riello Condexa HPR 35 Instructions For The Installer And For The Technical Assistance Centre

2.9

Schematic hydraulic systems

Layout 1: circuit with boiler directly connected to heating system (check that the pump discharge head is suffi-
cient to ensure adequate circulation)
Components NOT managed
directly by the boiler
Layout 2: circuit with boiler directly connected to heating system and DHW tank (check that the pump discharge
head is sufficient to ensure adequate circulation)
Components NOT managed
directly by the boiler
UAC
5 4
6
1 10 9 1
EAF
1
1 Disconnector valve
2 Non-return valve
3 Anti-burn mixer valve
4 Expansion vessel
5 Safety valve
6 Discharge
7 Pressure gauge
8 Minimum pressure switch
9 Softener filter
10 Pressure reducer
11 Storage tank
12 Diverting valve
13 Boiler circulator
SE Outdoor temperature sensor
MI High-temperature system delivery
RI High-temperature system return
EAF Cold water inlet
UAC DHW outlet
MI
2 1
RI
1
5
3 6
11
7
2
1
6
SE
13
5
6
7
8
4
1 10 9 1
1
12
1 2
MI
RI
1
9
The DHW and heating circuits must be completed
with expansion vessels of adequate capacity and
correctly-sized safety valves. The discharge of the
safety valves and appliances must be connected to
a suitable collection and disposal system (see the
price list catalogue for compatible accessories).
9
The selection and installation of the system com-
ponents is the responsibility of the installer, who
must respect the standards of good practice and
current legislation.
9
Special supply/make-up water must be conditioned
using suitable treatment systems.
a
It is forbidden to operate the boiler and circulators
without water.
9
On Condexa HPR 35-45 models, the diverting valve
(12) can be installed in the boiler.
25
EAF
SE
13
5
6
7
8
1 10 9 1
4
INSTALLATION
EAF