Savio GAIA 424 S Service Manual page 10

Diagrams
Function switch position
Heat request on d.h.w.
F2 (1,6 A T)
J4--- 1
L
J4--- 4
A
B
J4--- 3
C
A Time switch
B: Room thermostat (jumper shown)
C:Frostat (jumper shown)
Function switch position
Heat request on d.h.w.
F2 (1,6 A T)
J4--- 1
L
J4--- 4
A
B
J4--- 3
C
A Time switch
B: Room thermostat (jumper shown)
C:Frostat (jumper shown)
6
PTC
K1 (RELAY)
K2 (RELAY)
J4--- 5
CENTRAL HEATING
PRESSURE
SWITCH
J4--- 6
PTC
K1 (RELAY)
K2 (RELAY)
J4--- 5
CENTRAL HEATING
PRESSURE
SWITCH
J4--- 6
L --- LINE N --- NEUTRAL
ACTIVE CIRCUIT
INACTIVE CIRCUIT
TRANSFORMER
21V=
12V=
IGNITION
DEVICE
(or gas valve)*
J3--- 7 J3--- 8
J3--- 2 J3--- 3
PUMP
TRANSFORMER
21V=
12V=
IGNITION
DEVICE
J3--- 7 J3--- 8
J3--- 2 J3--- 3
PUMP
N
TO THE CENTRAL
CIRCUIT' S
LOW VOLTAGE
SECTION
N
N
N
TO THE CONTROL
CIRCUIT' S
LOW VOLTAGE
SECTION
N
N