Specifications

17
FOR OPEN VENTED (OPEN EXPANSION CISTERN) SYSTEMS
TYPICAL SAFETY EQUIPMENT AND HYDROULIC ARRANGEMENT
TCL
TC
Lockable valve
Valve
V
LV
BOILER
DV
ARFS
V
PR
CV
V
V
TI
DV
Drain valve
ARFS
Automatic refill system
One way valve
CV
PR
Pressure regulator
HS
SP
TI
LV
V
V
3W V
V
V
WLI
V
V
SP
V V
BPP
V
Three way valve
3W V
Water level indicator
Thermometer
Boiler thermostat
High Limit themostat
TC
TI
WLI
TCL
Open expansion cistern
By pass pump
Circulation pump
Heating system
SP
OEC
BPP
HS
HS
V
OEC
V