12
Technical data
Installation and operating instructions
58
Daikin/ROTEX A2 F
Oil condensing boiler A2 F
008.1546499_02 – 04/2018 – EN
Boiler type
A2 F 18H
A2 F 24H
A2 F 32H
Parameters
Unit
condensing boiler
Yes
Yes
Yes
Combination heater
No
No
No
Rated heat output P
rated
kW
18
24
31
Useful heat output
kW
For rated thermal output and high temperature
operation
(10)
P
4
17.7
24.1
31.4
At 30% of the rated thermal output and low tem-
perature operation
(11)
P
1
5.5
7.5
9.8
Seasonal space heating energy efficiency η
S
%
91
92
93
Efficiency
%
For rated thermal output and high-temperature
operation
(10)
η
4
91.8
91.9
92.0
At 30% of the rated thermal output and low tem-
perature operation
(11)
η
1
97.5
97.9
98.3
Auxiliary power consumption
kW
At full load el
max
0.184
0.204
0.228
At partial load el
min
0.040
0.045
0.053
In standby mode P
SB
0.003
0.003
0.003
Heat loss in standby mode P
stby
kW
0.093
0.093
0.093
Annual energy consumption Q
HE
kW (GJ)
11397 (41)
15078 (54)
18953 (68)
Noise power level indoors L
WA
dB(A)
63
65
66
Nitrogen oxide output
mg/kWh
50
57
66
Tab. 12-9
Technical data sheet A2 F
12.1.4
Tightening torque
Component
Remark
Tightening torque in
Nm
Hydraulic line connections (Water)
Thread 1‘‘
25 - 30
Sensor sleeve for flue gas temperature sensor
Fig. 6-5
1.5
Screw for safety temperature limiter STBK
Chap. 12.4
3
Screw for boiler earthing cable
3
Screws for burner chamber cover
Fig. 9-7
5
Screws for firing unit cover
Fig. 7-3
, item 1
2
Screw for cover of the boiler control panel
Fig. 4-10
, item 1
3
Screws for boiler cladding cover
Fig. 4-26
2
Tab. 12-10 Tightening torque
(10)
High-temperature operation means a return temperature of 60 °C at the heater inlet and an inflow temperature of 80 °C at
the heater outlet.
(11)
Low temperature operation means a return temperature at the heater inlet for condensing boilers of 30 °C.
