9
The boiler must be installed in a fixed
location and only by specialized and
qualified firms in compliance with all
instructions contained in this manual.
Furthermore, the installation must be in
accordance with current standards and
regulations.
2.1 BOILER
ROOM
“MURELLE GREEN PLANET 110 HE I - E”
boilers
an be installed in boiler rooms
whose size and requirements meet cur-
rent regulations.
Vents with openings of not less than 3000
cm2 (in the case of gas with a density
greater than 0.8 to 5,000 cm2) must be
installed.
2.2 INSTALLATION
2.2.1 Single boiler
The use of a hydraulic separator is man-
datory. for single boiler installations a kit
8101581 is available(see fig4).
The kit is suitable for the application of a
storage tank with a capacity equal to or
greater than 80 liters.
Section 2.5 shows the various fluing
options. PAR 9 must be adjusted accor-
ding to the tables shown in each option:
-
PAR 9 =
See TABLE 1-2-3-3/a.
For INSTALLER PARAMETERS see 3.3
section.
2.2.2 Cascade boilers
(fig.
4/a)
For sequence/cascade installations using
polypropylene smoke collectors with a
clapet valve (
note, this is not currently
available for Australian installations
),
every single boiler that makes up the
heating system must have the following
installation parameters modified
When the boiler is used in cascade, PAR
1 of each boiler in the cascade must be
reset as follows:
-
PAR 1 = 8
(if boiler is NATURAL GAS G20).
-
PAR 1 = 16
(if the boiler is PROPANE G31)
ATTENTION: In the event that intake pres-
sure drops are applied to sequence/cascade
installations, it is important to verify the CO2
at MAX and MIN capacity and, if necessary,
bring it back to the correct value descri-
bed in section 4.2.2. In sequence/cascade
installations, it is mandatory to arrange the
thermal system with the hydraulic separator
and safety devices.
The boiler is supplied with
RS-485 board
that allows management of up to 8 boi-
lers in cascade mode and MODBUS com-
munication. The board is on the back of
the control panel.
Select the correct mode (CASCADE or
MODBUS) positioning by positioning the
DIP SWITCH, as shown as figure 4/a
2 INSTALLATION
500
600
R3
235
70
R
M
M2
115
265
663
865
355
301
Single installation
with optional kit code 8101581
CAUTION:
-
The use of a hydraulic separator is mandatory..
- When replacing boilers in existing installations it is advisable to install a plate heat exchanger to separate the
heating circuit from the secondary circuits. See the available pump head curve shown in Fig. 14.
Fig. 4
M
Heating flow
R 2” (UNI-ISO 7/1)
R
Heating return
R 2” (UNI-ISO 7/1)
M2
Tank flow
G 1” (UNI-ISO 228/1)
R3
Tank return
G 1 1/2” (UNI-ISO 228/1)
