Accorroni W, Technical Information

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page 16
Fig. 6
1.12 WIRING DIAGRAM
Legend of the wire colors
a = orange
b = blue
bi = white
g = yellow
g/v = yellow / green
gr = grey
m = brown
n = black
r = red
ve = green
Legend for fans speed
W and WR 8
Max. speed = black
Min. speed = grey
W and WR 10
Max. speed = brown
Min. speed = black
WD 8
Max. speed = 3
Min. speed = 4
WD 10
Max. speed = 1
Min. speed = 2
Ac = Control equipment
Br = Burner
Com = Remote-control panel terminal board
Cs = Printed circuit
Ea = Ignition electrodes
Ef = Flue gas expeller motor
Er = Flame detection electrode
Ev = Gas solenoid valve
Fr = Noise filter
Mv = Fan motor
Op = Jumper for auxiliary connections
P = Differential pressure switch
Ts = Safety thermostat
Tv = Fan thermostat
= Fuse
Important:
- Install a disconnection device upline with contact
opening of at least 3 mm.
- Respect the phase-neutral polarity when connecting
the 230 V, ~ 50 Hz, single-phase power supply.
J15 J14 J13 J12 J11 J10
J 9 J 8 J 7 J 6 J 5 J 4 J 3 J 2 J 1
J25
J26
J27
J28
J29
J30
J31
J32
J33
J34
J35
J36
N
L
J23
J24
L N 1a N 1a N
J1 J2
L N SB RS
J3
N 1a
P
Ef
NO NC
C
Ts
Br
Ea
Er
Ev
Ac
K3 K1 K2
T v
L
N
SB
RS
J22
J21
J20
J19
J18
J17 J16
3(U)
1(U)
(4)
(2)
Fr
N
L
230 V ~
50 Hz
Op
Cs
b = common
max. speed
min. speed
Mv
a g ve g r m b n b i r
1 2 4 5 6 7 8 9 1 0
Com
g a n r g r b i ve b m
9
b = common
n = max. speed
m = min. speed
0
1
2
3
4
5
6
Mv
Variant connection
engine WD
page 21
to the standard configuration, you should
request them from ACCORRONI S.r.l.
In any case, any increases to the length of the
ducts must respect the limits specified in the
next point.
4.2.2 Duct length limits
If the duct passes directly through an outside
wall that is more than 40 cm thick, an intake and/
or exhaust duct with a diameter of 60 mm that is
1 meter long can be supplied upon request. The
length of the ducts must not exceed the limit of
6 meters, considered as the sum of the lengths
of both ducts (for example, 3 m of intake duct +
3 m of exhaust duct, etc.), otherwise the resulting
pressure drop may not allow the unit to function
properly, thus triggering the differential pressure
switch.
It should be remembered that an elbow in the
duct is the equivalent of a straight segment
of approximately 50 cm.
4.3 OUTSIDE POSITIONING OF THE FLUE
GAS EXHAUST TERMINAL
The position of the outside exhaust terminal for
combustion products with respect to windows,
ventilation openings, etc. must be in compliance
with the requirements of current applicable
regulations.
If the air heater is installed in rooms on the
ground floor and the exhaust faces sidewalks at
the level of pedestrians, a special protection
Fig. 13
POSITION (WR and WD)
min. 20 cm
Duct
Outside air intake
WD
WR
Fig. 14
POSITION (W)
min.20 cm
Fig. 15
DEFINITION OF “TYPE” IN THE REGULATIONS
Example showing the WR version - viewed from above
Type C
52
- Outside air intake and flue gas
exhaust terminals that are not close
together. They may even be on different
walls of the building.
Type C
12
- Outside air intake and flue gas
exhaust terminals that are close together.