24
|
ELECTRICAL
Product Name
6 720 ... ... (YYYY/MM)
6
ELECTRICAL
6.1
Electrical
Access to the electrical connections:
Remove the boiler front panel to gain access to electrical connections.
▶ Pull the top corners of the front panel away from the case until the
ball catches are released.
▶ Lift the panel off the lower brackets and set the panel safely aside.
Fig. 23 Electrical connections access
Access to electrical connections:
▶ Access to all wiring connections are via the Installer access cover at
the bottom front of the control panel. No access is required to other
parts of the control board.
▶ Release the three screws in the connections cover and remove the
cover.
Fig. 24
[1]
Mains voltage connections
[2]
Low voltage connections
[3]
Cable retainers
Fig. 25 Mains voltage connections
Fig. 26 Low voltage connections
DANGER:
Risk of fire from hot boiler components.
Hot boiler components can damage electrical cables.
▶ Ensure all electrical cables are in the correct cable
guides and away from hot boiler components
Run power cables separately from signal cables.
Interference from power cables can induce spurious
faults on signal cables, ensure that there is at least
300mm separation from each other.
CAUTION:
ISOLATE THE MAINS ELECTRICITY SUPPLY
BEFORE STARTING ANY WORK AND OBSERVE ALL
RELEVANT SAFETY PRECAUTIONS
▶ All electrical work must be carried out by a competent
and authorised person.
▶ All work must be in line with country specific and local
standard and regulations.
▶ The isolator must have contact separation of 3mm
minimum between poles. Any system connected to
the boiler must not have a separate electrical supply.
▶ External fuse 3 Amps.
▶ When stripping the wires ensure copper strands do
not fall into the control box.
6720809859-18.1Wo
Mains voltage terminal strip
1
External frost thermostat
2
230 V A.C. switched live inputs
3
230 V A.C. mains output
4
DHW charge pump
5
DHW circulation pump
6
CH circulation pump
7
Boiler 230 V A.C. mains supply
Table 13 Key to figure 25
Low voltage terminal strip
8
Input for external demand
9
EMS bus connections
10
External cut off switch (supplied with factory fitted link)
11
Outside sensor
12
DHW cylinder sensor
13
Low Loss Header sensor
Table 14 Key to figure 26
6720809859-16.1Wo
1
3
2
6720809859-15.1W
o
230V
IN
230V
OUT
FR FS LR LR
L
N
L
N
L
N
L
N
L
N
1
2
3
4
5
6
7
6720809859-14.1W
o
EMS
8
9
10
11
12
13
Содержание Condens 2000F16 Regular boiler
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