68
2.6
RS-485 BOARD
(fig. 9)
The boiler is provided with the board
RS-485
that permits to manage up to 8
boilers in cascade.
2.6.1 MODBUS mode
This mode allows for MODBUS commu-
nication of at least two boilers in cascade
and is performed by requesting MODBUS
INTERFACE KIT code 8092278.
2.7
ELECTRICAL CONNECTION
The boiler is supplied with an electric
cable. Should this require replacement, it
must be purchased exclusively from SIME.
The electric power supply to the boiler
68
Type C (ø 80/125 coaxial exhaust)
NOTES:
- Installation requires the use of a condensation recovery
(12) that must be connected to a water drain siphon (waste
water).
- The installation of the coaxial roof exit terminal (4a) requires
the removal of the two ø 60 and ø 100 reducers.
- Before installing accessories, lubricate the internal part of
gaskets with silicon-based products. Avoid using oils and
greases.
- Inserting each supplementary 90° elbow reduces the availa-
ble segment by 1 metres and Inserting each supplementary
45° elbow reduces the available segment by 0.5 metre.
KEY
2 a
Extension ø 80/125 L. 1000 code 8096171
2 b
Extension ø 80/125 L. 500 code 8096170
3
Hinged tile code 8091300
4 a
Coaxial roof exit terminal code 8091205
10
Inlet/exhaust fitting with test outlet code 8091401
11
Rubber gasket ø 80 (supplied as standard)
12
Condensation recovery ø 80 L. 135 code 8092800
13
Coaxial exhaust ø 80/125 L. 885 code 8091210
14 a 90° curve ø 80/125 code 8095870
14 b 45° curve ø 80/125 code 8095970
Fig. 8
STAFFA TELAIO
CALDAIA
G
M
R
Pmin
Pmax
Model Gas connection H (m)
L (m)
110 R ErP
G20
5
4
110 R ErP
G31
4
3
VERTICAL EXHAUST
To ensure correct operation of the appliance, do as
follows:
- set the installer parameter PAR 9 as indicated
in TABLE 3 (see point 3.3 to access the installer
parameters).
- proceed with calibrating CO
2
at the maximum and
minimum capacity as specified in point 4.2.2.
TABLE 3
Maximum length
PAR 9
exhaust (m)
(long chimneys)
0 - 1,0
6
1,0 - 2,0
7
2,0 - 3,0
8
3,0 - 4,0
9
4,0 - 5,0
10
HORIZONTAL EXHAUST
To ensure correct operation of the appliance, do
as follows:
- set the installer parameter PAR 9 as indicated in
TABLE 3/a (see point 3.3 to access the installer
parameters).
- proceed with calibrating CO
2
at the maximum
and minimum capacity as specified in point 4.2.2.
TABLE 3/a
Maximum length
PAR 9
exhaust (m)
(long chimneys)
0 - 1,0
7
1,0 - 2,0
8
2,0 - 3,0
9
3,0 - 4,0
10
