EP E
series
11-03
8
Illustrations may differ from the actual product
Allowing for printing errors and errors on proofs
Circulation pump
Connecting the circulation pump to the boiler allows you to utilise
the pump stop function, which also operates the pump briefly
when it is not in use. The function can be disabled for continuous
operation. Max 2 A. Important: 230 V.
2
External unit
Fused socket for supply to external unit, max 2 A. Important: 230 V.
2
Load guard
The load guard uses current transformers to measure the load on
the main fuses.
The size of the main fuse, 35-125 A, is set on the PCB.
Position the current transformers on the cables from the fuses to
be protected, usually the main fuses. The connecting cable must
be high current insulated, with a cross-sectional area of at least
0.75 mm
2
. The common conductor is connected to terminal 4.
If the function is not required, the current transformers do not need
to be connected.
1
2
3
4
3
External alarm indication
There is a voltage-free alarm, indicating a triggered overheating pro-
tection., max 230V~, 2A.
2
Electrical installation
Electrical installation must be in accordance with the
applicable regulations, under the supervision of an
authorised installer.
The boiler and water heater must be filled with water before
electrical installation begins.
An all-pole circuit breaker must be installed ahead of the boiler.
The minimum cross sectional area of cable for external units con-
nected to the boiler is 1.5 mm
2
.
The ambient temperature must not exceed 30°C.
Sensor cables must not be laid next to power cables.
The internal connections of the boiler are already made in the factory,
and external connections are made according to the wiring diagram.
Do not drill into the cover panels of the boiler
– the residues may harm the electronics.
Power limit
The power of the electric boiler can be limited. See “Electronic con-
Electronic con-
trol - settings”.
Restart after a power failure
The boiler restarts automatically after a power failure.
Power supply cable - EP 26 E
A five-core power supply cable is connected to the terminal in the
boiler, max 16 mm
2
Cu,
50 A fuse.
1
Power supply cable - EP 42 E
The power supply cable must be PEN or five-core, made of copper,
max 25 mm
2
, 80 A fuse.
The phase conductors are connected to a contactor, and the earth
conductor is connected to a neutral terminal.
1
PEN or 5-core
