![](https://pdfstore-manualsonline.prod.a.ki/pdfasset/e/79/e79d889e-200b-4597-bb71-68a93d9c7390/e79d889e-200b-4597-bb71-68a93d9c7390-bg15.png)
Instruction manual BFM 21
is
Dimensions (all measurements in mm unless otherwise indicated)
3.4.2 General and electrical specifications
General and electrical specifications
Dimens
ion
Description BFM30 BFM50 BFM80 BFM100 BFM120
A Total height 2000 2000 2020 2020 2020
B Height of top of appliance 1800 1800 1820 1820 1820
C Position on pallet 580 580 580 580 580
D Appliance diameter 710 710 710 710 710
E Depth 1000 1000 1000 1000 1000
F Width 755 755 755 755 755
G Diameter of chimney flue 80 100 130 130 130
Hy y-position air supply - - - 235 235
K Height of gas connection 600 600 600 600 760
L Diameter of Air supply 125 150 200 130 130
M Height of cold water supply 600 600 590 590 590
N Height of hot water outlet 1640 1640 1655 1655 1655
P Height of cleaning opening 770 770 760 760 760
R Height of drain valve connection 550 550 540 540 540
S Height of T&P valve connection 1600 1600 1600 1600 1600
1 Cold water supply connection (external) R1
1
/
2
R1
1
/
2
R1
1
/
2
R1
1
/
2
R1
1
/
2
2 Hot water outlet connection (internal) Rp1
1
/
2
Rp1
1
/
2
Rp1
1
/
2
Rp1
1
/
2
Rp1
1
/
2
3 Gas control connection (internal) Rp
3
/
4
Rp
3
/
4
Rp
3
/
4
Rp
3
/
4
Rp1
4 Drain valve connection (internal) Rp1
1
/
2
Rp1
1
/
2
Rp1
1
/
2
Rp1
1
/
2
Rp1
1
/
2
5 T&P valve connection (internal) 1 - 11.5
NPT
1 - 11.5
NPT
Rp1
1
/
2
Rp1
1
/
2
Rp1
1
/
2
6 Cleaning/inspection opening Ø 100 Ø 100 Ø 100 Ø 100 Ø 100
DESCRIPTION Unit BFM
30
BFM
50
BFM
80
BFM
100
BFM
120
Volume litres 309 298 253 253 253
Maximum operating pressurebar88888
Empty weight kg 230 245 295 320 320
Heating-up time ΔT=45
o
C minutes 37 22 12 9 8
Diameter of air restrictor mm 36 42 54 48 64
Number of anodes - 2 2444
Number of bar burners/orifices- 35777
Number of flue tubes/flue baffles - 5 7 16 16 16
Electrical power consumption W 100 100 100 275 300
Supply voltage
(-15% +10% VAC)
volts 230 230 230 230 230
Mains frequency Hz (± 1Hz) 50 50 50 50 50
IP class - 20 20 20 20 20