Wiring diagram of ACV controller kits
(fig. 7)
2
INSTALLATION
2.3
ELECTRICAL CONNECTION
2.3.1
POWER SUPPLY
The boiler operates with a 230 V - 50 Hz single phase supply. An
on-off switch box with 6 A fuses must be fitted outside the boiler to
allow power to be shut off during servicing and before any repairs are
carried out on the boiler.
2.3.2
COMPLIANCE
Boiler installation must comply with the prevailing local standards and
legislation.
2.3.3
SAFETY
The stainless steel tank must be earthed separately.
2.3.4
BURNER ELECTRICAL CONNECTION
The burner is supplied with power by a 3-core cable.
1. Boiler thermostat
(60/90° C)
2. On/off switch
3. Summer/winter selector
4. Thermometer
5. Controller (optional)
6. TTB
7. Cut-off thermostat
(95° C max.)
8. Safety thermostat
(103° C max.)
9. Plug
(power and control)
10. Room thermostat
11. Heating pump connection
12. To gas valve
Fig. 8: Control panel
The power to the boiler must be switched off before any
work is carried out.
Fig. 9: Boiler wiring
M. Brown
O. Orange
N. Black
B. Blue
R. Red
T. Green-yellow
1
2
C
L1
L1
N
T1 T2
N T1 T2
S3
S3
N
L1
230V-50 Hz
6A
M
R
B
B
O
B
B
O
M
M
T
N
N
1O
11
9
2
8
7
3
6
1
12
2 4
1
3
5
20
19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
20
19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
bl n/z br
SQK 349
QAAD50
(QAAD70) QAC32
QAD22
P1
B5
B9
B3
B2
P1
Y1
Y2
N
B5
B9
B3
B2
B2.
Water temperature detector
B9.
Outside temperature detector
B5.
Analogue/digital room thermostat
P1.
Central heating pump
Y1/Y2/N.
Mixer valve (SQK349)
bl.
Blue N
n/z.
Black Y2
br.
Brown Y1
N
230V / 50 Hz
L1
ALIMENTATION
230V
5
Fig. 6a: kit 1
Fig. 6b: kit 2
2.2.4
CONTROLLER KITS
KIT 1: ACV 13.00 / Basic
Basic kit for regulating flow temperature according to
weather conditions.
It comprises: temperature regulator with analogue timer,
water temperature detector (-30/130° C), outside temperature
detector (-30/50° C), 230V - 3 spindle servomotor SQY 31
and intermediate socket.
KIT 1: ACV 13.00 / Standard
Basic kit for regulating flow temperature according to
weather conditions.
It comprises: temperature regulator with analogue timer,
water temperature detector (-30/130° C), outside temperature
detector (-30°/50
'
C), 230V - 3 spindle servomotor SQY
349 and intermediate socket.
