7
HYDRAULIC SCHEME
LEGEND:
R = WATER MAINS TAP
VDR = DOUBLE CHECK VALVE
A = WATER TREATMENT SYSTEM (OPT.)
F =
WATER FILTER (OPTIONAL)
MP = MOTOPUMP
VU = CHECK VALVE
VE = EXPANSION VALVE
G1 = WATER MAINS/PUMP PRESSURE
GAUGE
EVA = SELF-LEVEL SOLENOID
VALVE G2 = BOILER PRESSURE GAUGE
F1 = VOLUMETRIC METER 1ST GR
F2 =
VOLUMETRIC METER 2ND GR
F3 =
VOLUMETRIC METER 3RD GR S1 =
HEAT EXCHANGER 1ST GR S2 = HEAT
EXCHANGER 2ND GR S3 = HEAT
EXCHANGER 3RD GR EV1 = SOLENOID
VALVE 1ST GR COFFEE EV2 =
SOLENOID VALVE 2ND GR COFFEE EV3
= SOLENOID VALVE 3RD GR COFFEE
ST1 = STEAM TAP LEFT
ST2 = RIGHT STEAM TAP
HWT =
HOT WATER TAP
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