EN.33.C.39.2022-01-14
Assembly instructions | LK Electric Portable Boiler
a blunt chisel e.g. TX10 or H2.5 when resetting
In the event of a repeated overheating, determine
the cause of the fault and fix it before restarting.
Before restarting the boiler
• Check that the pump can rotate by turning
the rotor with a screwdriver in the center
hole of the pump.
• Check that the overheating protection is not
tripped. Press the RESET-button (12) under
the middle plastic screw with the red O-ring.
• Check that the boiler is water-filled and well
vented.
Circulation Pump
For setting up the circulation pump, see separate
instruction ”Grundfos UPM3 Auto 15/70”. Note
that the pump is advantageously set to work with
constant pressure and that this must be set manu-
ally according to separate instructions.
QR code for assembly instruction UPM3
Alarm codes
In the event of an operating problem then a fault
code will be displayed as below.
Foult codes circulation pump
Display
Indication Operation
Action
Red LED,
Yellow LED
#5
Blocked
rotor
False start
was 1.33 s.
Wait or
release rotor/
impellerr*
Red LED,
Yellow LED
#4
Too low
voltage
Only one
warning, the
pump oper-
ates as normal
Check the
voltage to the
pump
Red LED,
Yellow LED
#3
Electric
fault
Pump stops
because of
low voltage or
serious fault
Check voltage
to pump / Re-
place pump/
impeller
*
Release impeller using screwdriver PH2. Break the
voltage to the pump. Insert the screwdriver into the
center hole of the drive side, press the screwdriver in
about 5 mm, then rotate forward /backward until the
impeller loosens.
Installation
The boiler should be placed indoors/under a roof
and fully protected from rain. The integrated
safety package including automatic air-bleed
valve, safety valve and connecting hoses, must
be installed as shown in the product diagram (see
above). Relevant building standards and hot wa-
ter installation standards must be adhered to.
The safety valve’s outlet’s functioning must be
ensured in the appropriate manner; refer to cur-
rent hot water installation standards. No thermo
-
meter is included in the standard kit. However, a
thermometer should be mounted on the pipe after
the boiler. The heating system must be arranged
so that there is always a flow through the elec
-
trical cartridge. Check to see that one or more of
the heating loops are always open.
Switching on
Before switching on, check to see that the hea-
ting system is filled with water, air-bled and that
the system’s operating pressure is sufficient.
Check to see that the circulation pump is run-
ning by listening to and testing the various pump
speed settings.
Thermostat operation
Temperature regulation is via the boiler’s opera-
tional thermostat (constant output temperature).
The thermostat can be set up to a maximum of 60
ºC. Monitor the output temperature by means of
a thermometer and compare it to the set tempera-
ture.
Overheating protection
Note!
Resetting is possible after the boiler has
cooled down to approx. 65 ºC.
The boiler is provided with built in overheating
protection, which cuts off the power at approx.
80 ºC and att temperatures < −5 ºC. To reset the
overheating protection function, press the RE-
SET-button (12)
under the middle plastic screw
with the red O-ring
. Press the button hard with
2 (3)
English
