Riello Array AR 399 SE Installation, Operation And Service Manual page 58

APPENDIX
RECYCLING AND DISPOSAL APPENDIX
Layout 3: circuit with boiler connected to a heating system via a separator
Layout 4: circuit with boiler linked to Indirect DHW tank and heating system via a separator
OS
4
1
EAF
1 Isolating valve
2 Check valve
3 Anti-scald mixing valve
4 Expansion tank
5 Pressure relief valve
6 Drain
9
WARNING: Domestic hot water and central heating circuits must be completed with expansion tanks of adequate capacity and suit-
ability, correctly-sized pressure relief valves. The discharge of pressure relief valves and appliances must be connected to a suitable
collection and disposal system.
9
CAUTION: The choice of system components and the method of their installation are left up to the heating engineer installing the
system. Installers must use their expertise to ensure proper installation and functioning in conformity to all applicable legislation.
9
CAUTION: Special supply/refill water must be conditioned using suitable treatment systems.
0
WARNING: It is prohibited to operate the boiler without water.
OS
10
4
1 1
8 7
EAF
10
5
1
8 7
11
1
7
8
9
10 Pump
11
12 Indirect tank circulator
5
6
5
3
6
6
12
9
MI
2 1
1
RI
1
6
Water softener filter
Pressure reducer
Domestic water storage tank
High-temperature system circulator
58 58
11
MI
1 2 1
RI
1
1
UAC
4
5
6
8
M 2
1 7 1
1
OS Outdoor temperature
sensor
MI High temperature system
supply
RI High temperature system
return
EAF Domestic cold water inlet
UAC Domestic hot water outlet
EAF