DOMItech F 24 - F 32
32
EN
cod. 3540R832 - 0
/201
(Rev. 00)
Table. 6 - Accessories
Connection to collective flues
fig. 13 - Examples of connection to flues (
= Air /
= Fumes)
Table. 7 - Typology
If the boiler is to be connected
DOMItech F 24 - F 32
to a collective flue or a single flue
with natural draught, the flue or chimney must be expressly designed by professionally
qualified technical personnel in conformity with the current regulations and be suitable
for sealed chamber units equipped with fan.
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 dataplate. Whenever a different
gas to that for which the unit is preset has to be used, a conversion kit will be required,
proceeding as follows:
1.
Replace the nozzles at the main burner, fitting the nozzles specified in the technical
data table in cap. 5, according to the type of gas used
2.
Modify the parameter for the type of gas:
•
put the boiler in standby mode
•
press the
reset
button (detail 6 - fig. 1) for 10 seconds: the display shows “
TS
“
flashing
•
press the
reset
button (detail 6 - fig. 1): the display shows “
P01
“.
•
Press the DHW buttons (detail 1 - fig. 1) to set parameter 00 (for operation with
natural gas) or 01 (for operation with LPG).
•
Press the
reset
button (detail 6 - fig. 1) for 10 seconds.
•
the boiler will return to standby mode
3.
Adjust the minimum and maximum pressures at the burner (ref. relevant section),
setting the values given in the technical data table for the type of gas used
4.
Apply the sticker contained in the conversion kit, near the dataplate as proof of the
conversion.
TEST mode activation
Press the heating buttons (detail 3 - fig. 1) at the same time for 5 seconds to activate the
TEST
mode. The boiler lights at the maximum heating power set as described in the fol-
lowing section.
The heating and DHW symbols (fig. 14) flash on the display; the heating power will be
displayed alongside.
fig. 14 - TEST mode (heating power = 100%)
To deactivate the TEST mode, repeat the activation sequence.
The TEST mode is automatically disabled in any case after 15 minutes.
Adjustment of pressure at burner
Since this unit has flame modulation, there are two fixed pressure values: the minimum
and maximum, which must be those given in the technical data table according to the
type of gas.
•
Connect a suitable pressure gauge to pressure point
"B"
downstream of the gas
valve.
•
Disconnect the pressure compensation tube
“N”
.
•
Remove the protection cap “D”.
•
Operate the boiler in TEST
mode
.
•
Adjust the maximum pressure by turning the screw
“G”
clockwise to increase the
pressure and anticlockwise to decrease it.
•
Disconnect one of the two fastons
"C"
from the modureg
"F"
on the gas valve.
•
Adjust the minimum pressure by turning the screw
"E"
clockwise to increase the
pressure and anticlockwise to decrease it.
•
Turn the burner on and off, checking that the minimum pressure remains stable.
•
Reconnect the faston
"C"
detached from the modureg
"F"
on the gas valve
•
Check that the maximum pressure has not changed
•
Reconnect the pressure compensation tube
“N”
.
•
Refit the protection cap
“D”
.
•
To end the
TEST
mode, repeat the activation sequence or wait 15 minutes.
A
After checking or adjusting the pressure, make sure to seal the adjust-
ment screw with paint or a specific seal.
Losses in m
eq
Air
inlet
Fume exhaust
Vertical
Horizontal
Ø 80
PIPE
0.5 m M/F
1KWMA38A
0.5
0.5
1.0
1 m M/F
1KWMA83A
1.0
1.0
2.0
2 m M/F
1KWMA06K
2.0
2.0
4.0
BEND
45° F/F
1KWMA01K
1.9
2.9
45° M/F
1KWMA65A
1.9
2.9
90° F/F
1KWMA02K
2.0
3.0
90° M/F
1KWMA82A
1.5
2.5
90° M/F + Test point
1KWMA70U
1.5
2.5
PIPE SECTION
with test point
1KWMA16U
0.2
0.2
for condensate drain
1KWMA55U
-
3.0
TEE
for condensate drain
1KWMA05K
-
7.0
TERMINAL
air, wall
1KWMA85A
2.0
-
fumes, wall with antiwind
1KWMA86A
-
5.0
FLUE
Split air/fumes 80/80
1KWMA84U
-
12.0
Fume outlet only Ø80
1K
1KWMA86U
-
4.0
Ø 100
REDUCTION
from Ø80 to Ø100
1KWMA03U
0.0
0.0
from Ø100 to Ø80
1.5
3.0
PIPE
1 m M/F
1KWMA08K
0.4
0.4
0.8
BEND
45° M/F
1KWMA03K
0.6
1.0
90° M/F
1KWMA04K
0.8
1.3
TERMINAL
air, wall
1KWMA14K
1.5
-
fumes, wall with antiwind
1KWMA29K
-
3.0
Ø 60
PIPE 1 m M/F
010028X0
-
2.0
6.0
BEND 90° M/F
010029X0
-
6.0
REDUCTION 80 - 60
010030X0
-
8.0
TERMINAL fumes, wall
1KWMA90A
-
7.0
ATTENTION: CONSIDER THE HIGH PRESSURE LOSSES OF Ø60 ACCESSORIES;
USE THEM ONLY IF NECESSARY AND AT THE LAST FUME EXHAUST SECTION.
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
C
8X
C
2X
C
4X
IIII
IIIIIIIIIIIIIII
IIIIII
IIII
II
III
IIIIIIII
IIIII
