11
L
N
TA
TA
1
VZ
R
VZ
1
R
1
NOTA: I relé vengono impiegati solo nel caso
le valvole di zona siano prive di micro.
CR
1
CR
1
2
Fig. 17
KEY
TA-TA1
Zone room stat
VZ-VZ1
Zone valves
R-R1
Zone relay
CR-CR1
Zone microvalve or relay contact
NOTE: Relays are used only if the area valves have no
microswitches.
By-pass inserito
By-pass escluso
Fig. 16/a
BY-PASS ON
BY-PASS OFF
D.H.W. FLOW RATE ADJUSTER