16
Värmebaronen EP 26E and EP 42E
3
4
Power supply to external unit
Fused, 6A, socket for feeding external unit, 230V ~/max 2A.
N
N
F
CP
2
1
Circulation pump
See advanced service Level row 23 and user level row 12.
Control, 230V ~, to circulation pump, max load 2A.
N
N
F
CP
2
1
The circulation pump must be labelled to show
that it is controlled by the boiler if the function
is used!
External indicator for the alarm
230V~, alarm indication of triggered overheating protection or
"Stop Alarm" from the electronic system.
N
N
F
CP
2
1
Current Transformers - Load Guard
See "CURRENT LIMIT" and "MARGIN" in the Menu,
installation/service level.
The current transformers need not be connected if the function
is not to be used. The guard is not phase-sensitive.
The current transformers are placed on the wires from the
fuses, which must be protected. Connection must be made
with a high-voltage insulated cable, with a minimum area
of 0.75 mm
2
. A joint conductor is connected in terminal 4.
2 3
4
1
4
5
Electrical installation
Electrical installation shall be carried out in
accordance with the applicable regulations, by
an authorized electrical installer or by someone
who is covered by the company's self-inspection
programme!
Connection cables must be dimensioned according to
the Electrical Installation Rules.
The boiler must be preceded by an all-pole main breaker.
Cables must be laid so that it is possible to open the
front and remove the roof plate for service.
Light-current cables must not be laid in direct connection
with power cables as this may give rise to disruption.
The boiler and heating system must be filled with water
and vented before the boiler is connected to the power
supply.
Do not drill into the boiler's cover plates.
Cuttings can damage the boiler's electrical
equipment!
Output limiting
See Installation/Service level/row 5
Power supply
See Technical data.
1
EP 26 E:
N
L1 L2
L3
N L1 L2 L3
400V 3~
19
EP 42 E
T3
T2
T1
L3
L2
L1
U
V
W
400V 3~
N
1
Connection for PEN 4-core or 5-core cable. The phase
conductors are connected to a contactor, the earth conductor
to a neutral base.
If 5-core cables are connected, the disconnector must be
removed from the earth block.
2
