A.O. Smith BFM 50 ユーザーズマニュアル
16
2.1.6 Electrical connection
All electrical connections must be carried out by a
registered electrical contractor to the relevant
regulations.
regulations.
The BFM must be connected to a supply voltage by
means of a permanent electric connection and have a
feeder cable not less than 3 x 1,0 mm².
feeder cable not less than 3 x 1,0 mm².
Supply voltage
Supply network
Mínimum fuse
frequency
required
220/240 VAC
50 Hz
1 A
The electrical diagram of the BFM-heater and the
connections in the control-column are shown in figures
12 and 13.
connections in the control-column are shown in figures
12 and 13.
Electrical connection diagram BFM
(see figure 12)
A)
(see figure 12)
A)
Jacket
B) Transformer 230V/238V/2VA
C) Air proving switch
D) EMC single phase filter
E) RESET knob
F)
C) Air proving switch
D) EMC single phase filter
E) RESET knob
F)
Thermostat frost
G) Thermostat regulation
H) Switch ON/OFF
K) Thermostat overheat 93°C
L)
H) Switch ON/OFF
K) Thermostat overheat 93°C
L)
Thermostat high limit 84°C
M) Automatic burner controller
N) Plastic connector strip
P) Earth terminal block
S) Relais
N) Plastic connector strip
P) Earth terminal block
S) Relais
Colour-code cables:
1 Blue
2 Brown
3 Yellow/green
4 Red
5 White
6 White/orange
7 White/violet
8 Black
9 Black/green
10 Black/red
11 Black/white