Riello Array AR 399 SE Installation, Operation And Service Manual page 59

APPENDIX
Layout 5: circuit with boiler linked to heating system and indirect DHW. tank via a separator
OS
4
1 1
8 7
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.
11
5
6
10
5
12
MI
1 2 1
RI
1
7 Water softener filter
8 Pressure reducer
9 Domestic water storage tank
10 Diverter valve
11 Pump
12 High-temperature system circulator
59 59
1
3
6
9
M 2
1
1
1
6
OS Outdoor temperature
sensor
MI High temperature
system supply
RI High temperature
system return
EAF Domestic cold water
inlet
UAC Domestic hot water
outlet
RECYCLING AND DISPOSAL APPENDIX
UAC
4
5
6
8
7 1
EAF