Sime GIULIA SYSTEM 25 - Heating System Solutions; System Solutions

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6.14 System solutions
6.14.1 Heating system solutions
KEY
SE External temperature sensor
TA Room thermostat for boiler activation
TZ1÷TZ3 Zone ambient thermostat
EVZ1÷EVZ3 Zone solenoid valve
KA1÷KA3 Zone relays
PI1÷PI3 Pump
SP Hydraulic separator
ONE DIRECT ZONE system, external sensor and room ther-
mostat.
SE
TA
SE
TA1
Fig. 34
MULTI ZONE system - with zone valve, room thermostat and
external sensor.
TA
TZ1
EVZ1 EVZ2 EVZ3
TZ2 TZ3
SE
TA1
SE
Fig. 35
m
CAUTION
Set the parameter "tS 1.7 = DELAY SYSTEM PUMP
ACTIVATION to allow the opening of zone valve VZ.
MULTI ZONE system - with pump, room thermostat and ex-
ternal sensor.
TA
SE
TZ2
TZ3
PI3
KA1
SP
KA2 KA3
PI2PI1
TA1-TA2
SE
Fig. 36