VENUS BA MS 24- 34
22
EN
cod. 3541I710 - Rev. 00 - 06/2016
Connection to collective flues
fig. 19 - Examples of connection to collective flues (
= Air /
= Fumes)
Table. 7 - Typology
If the boiler is to be connected
VENUS BA MS 24- 34
to a collective flue or to a single
flue with natural draught, the flue or chimney must be expressly designed by profession-
ally qualified technical personnel in conformity with the current regulations and be suita-
ble for sealed chamber units equipped with fan.
3.7 Condensate drain connection
The boiler has an internal trap for draining condensate. Fit the inspection union
A
and
the hose
B
, pressing it in. Fill the air-trap with approximately 0.5 l. of water and connect
the hose to the disposal system
B
ATTENTION: The unit must never be operated with the trap empty!
fig. 20 - Condensate outlet connection
4. SERVICE AND MAINTENANCE
4.1 Adjustments
Gas conversion
The unit can operate on natural gas or LPG and is factory-set for use with one of these
two gases, as clearly shown on the packing and on the data plate. Whenever a different
gas to that for which the unit is arranged has to be used, a conversion kit will be required,
proceeding as follows:
1.
Remove the front panel (
see *** 'Opening the front panel' on page 26 ***
).
2.
Undo the screw and rotate the control panel (see fig. 21).
3.
Unscrew the ring
C
and remove the gas pipe
A
from the gas valve (see fig. 22).
4.
Replace the nozzle
B
inserted in the gas pipe with that contained in the conversion
kit, interposing seal
D
(see fig. 22).
5.
Reassemble the gas pipe
A
and check the tightness of the connection.
6.
Apply the label, contained in the conversion kit, near the data plate.
7.
Refit the front panel.
8.
Modify the parameter for the type of gas
:
•
put the boiler in standby mode
•
press the
DHW buttons
(details 1 and 2 - fig. 1) for 10 seconds: the display
shows
“b01”
flashing.
•
press the
DHW buttons
(details 1 or 2 - fig. 1) to set the parameter
00
(for nat-
ural gas operation) or
01
(for LPG operation).
•
press the
h button
(detail 4 - fig. 1) until the display shows
“b04”
flashing.
•
press the
DHW buttons
(details 1 or 2 - fig. 1) to set the parameter according
to table 8.
Table. 8
•
press the
h button
(detail 4 - fig. 1) until the display shows
“b05”
flashing
•
press the
DHW buttons
(details 1 or 2 - fig. 1) to set the parameter according
to table 8.
Table. 9
•
press the
DHW buttons
(details 1 and 2 - fig. 1) for 10 seconds.
•
the boiler will return to standby mode
9.
Using a combustion analyzer connected to the boiler fume outlet, check that the
CO
2
content in the fumes, with the boiler operating at max. and min. output, matches
that given in the technical data table for the corresponding type of gas.
fig. 21
Type
Description
C2X
Intake and exhaust in common flue (intake and exhaust in same flue)
C4X
Intake and exhaust in common and separate flues, but undergoing similar wind conditions
C8X
Exhaust in single or common flue and wall intake
B3X
Intake from installation room by means of concentric duct (that encloses the exhaust) and exhaust in
common flue with natural draught
IMPORTANT- THE ROOM MUST BE PROVIDED WITH APPROPRIATE VENTILATION
C93
Exhaust to a vertical terminal and intake from existing flue.
C
8X
C
2X
C
4X
C
93
C
93
0,5lt
A
B
Parameter
Model
Gas
Parameter value
b04
VENUS BA MS 24
Natural Gas
170
LPG
160
VENUS BA MS 34
Natural Gas
200
LPG
190
Parameter
Model
Gas
Parameter value
b05
VENUS BA MS 24
Natural Gas
150
LPG
140
VENUS BA MS 34
Natural Gas
180
LPG
170
