3
Domestic hot water hydraulic diagram
(see illustration H)
1.
Safety unit
2.
Pressure reducer
3.
Thermostatic mixing valve
4.
Hot water circulator
5.
Non-return valve
6.
Domestic hot water type expansion tank
7.
Cold water alimentation valve
8.
Draw-off valve
9.
Drain down valve
10.
Air valve
11.
Shut-off valve
◆
CONTROLLER KITS
KIT 1: ACV 13.00 / Basic
(see illustration D)
Basic kit for regulating initial flow temperature according to weather
conditions. It comprises: a temperature regulator with analogue
clock, wall-mounted water temperature sensor (-30/130 °C), external
sensor (-30/50 °C), 3-pin servomotor SQY 31 230 V and an
intermediate base.
KIT 2: ACV 13.00 / Standard
(see illustration E)
Basic kit for regulating initial flow temperature according to weather
conditions. It comprises: a temperature regulator with analogue
clock, wall-mounted water temperature sensor (-30/130 °C), external
sensor (-30/50 °C), 3-pin servomotor SQY 349 230 V and an
intermediate base.
Wiring diagram for ACV controller kits
(see illustration C)
B2.
Wall-mounted temperature detector
B9.
External sensor
B5.
Analogue/digital room thermostat
P1.
Central heating pump
Y1/Y2/N.
Mixer valve (SQK 349)
bl.
Blue
N
bk.
Black
Y2
br.
Brown
Y1
■
ELECTRICAL CONNECTION
(see illustration A)
◆
DESCRIPTION OF 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.
■
OIL SUPPLY
◆
INSTALLATION WITHOUT RETURN
(see illustration I)
◆
INSTALLATION WITH RETURN
(see illustration J)
EN
This is available as an optional accessory
Safety unit
Ø 3/4”
Pressure reducer
Ø 3/4”
Thermostatic mixing valve
Ø 3/4”
Expansion tank
5 litres
◆
COMPLIANCE
Boiler installation must comply with current local standards and
legislation.
◆
SAFETY
The stainless steel tank must be earthed separately.
◆
BURNER ELECTRICAL CONNECTION
(see illustration A)
The burner is powered through a 3-core cable, which is plugged into
the connector in the lower right hand corner of the burner chamber
plate. Details of how to connect it up are given in the technical
instructions for the burner.
1.
Boiler thermostat
(60/90 °C)
2.
On/off switch
3.
Summer/Winter selector switch
4.
Safety thermostat
(103 °C max.)
5.
Plug for power and control
6.
Central heating circulator connection
7.
Burner connection
8.
Room thermostat
PH:
Phase
N:
Neutral
M:
Motor
VM 1:
Magnetic valve 1
VM 2:
Magnetic valve 2
PF:
Oil preheating
T:
Ignition transformer
AL:
Alarm
CF:
Photoelectric cell
:
BM R 31 burner only
It is important to switch the boiler off before carrying
out any work.
L (m)
(L = H + L1)
H (m)
Ø int. 8 mm
Ø int. 10 mm
0,5
10
20
1
20
40
1,5
40
80
2
60
100
L (m)
(L = H + L1)
H (m)
Ø int. 8 mm
Ø int. 10 mm
0
35
100
0,5
30
100
1
25
100
1,5
20
90
2
15
70
2
8
30
3,5
6
20
•
Domestic hot water expansion tank
Installing a hot water expansion tank avoids any risk of pressure
surges due to water-hammer, or with the variations of pressure.
•
Hot water circulation
If the tank is located a long way from the point of use, then installing
a closed recirculation circuit ensures that a faster supply of hot water
is always available.
IMPORTANT
As a safety measure against burns, we strongly advise
installing a thermostatic mixing valve
.
B.
Blue
Bk.
Black
Br.
Brown
Gr.
Green
Or.
Orange
R.
Red
Y/Gr.
Yellow / green
