LK Systems 241 84 64 User manual

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LK Electric Portable Boiler comprises of:
1. Electrically-heated boiler, 9 kW
2. Control box
3. Expansion tank, 12 litres
4. Safety valve, 1.5 bar
5. Pressure gauge
6. Automatic air-bleed valve
7. Circulation pump, Grundfos Alpha 2L 15/60
8. Steel-reinforced connection hose 1”, length
1.0 m
9. Cable with 3-phase coupling connector,
length 1.0 m
10. Operating thermostat, 0-60 ºC
11. Multipolar main switch
12. Trip switch, overheating protection
13. Trip switch (automatic fuse (10 A)), circula-
tion pump
14. Power amplication indication
4
5
6
1
2
3
7
9
8
14
13
12
10
11
2
Structure
The LK Electric Portable Boiler is a complete
portable electrically-heated boiler. It is primarily
meant to be used as a temporary heater, e.g. for
drying concrete slabs installed with under oor
heating and for heating buildings under construc-
tion installed with a under oor heating system.
The boiler has a total output capacity of 9 kW and
it works in two steps of 4.5 kW.
The boiler is supplied complete with a circulation
pump, an expansion tank, and auxiliary devices
including a safety valve and air-bleed valve.
Connection to the under oor heating manifold/
heating system is simple, using steel-reinforced
exible hoses.
The boiler is factory wired and complete with a
3-phase 400 V electric plug.
Temperature regulation is controlled by the
boiler’s operating thermostat.
LK Electric Portable Boiler
EN.33.C.39.1707
Assembly instructions | LK Electric Portable Boiler

2 (3)
EN.33.C.39.1707
Assembly instructions | LK Electric Portable Boiler
Circulation Pump
For setting up the circulation pump, see separa-
te instruction ”Grundfos UPM3 Auto L 15/70”.
Note that the pump is advantageously set to work
with constant pressure and that this must be set
manually according to separate instructions.
QR code for assembly instruction UPM3
Trip switch, circulation pump
The circulation pump is protected by a 10 A Trip
Switch (13). In the event of the fuse tripping out,
determine the cause of the fault and x it before
restarting.
Safety valve
The safety valve must be tested at start-up and
then at set intervals 2-3 times per year. CAU-
TION: Take care when testing as the out-owing
water/steam can cause scald injuries.
Pump graph
Installation
The boiler should be placed indoors/under a roof
and fully protected from rain.
The integrated safety package including automa-
tic air-bleed valve, safety valve and connecting
hoses, must be installed as shown in the product
diagram (see above). Relevant building stan-
dards and hot water 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 ow through the electrical 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 heating
system is lled with water, air-bled and that the
system’s operating pressure is sufcient.
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 tempe-
rature.
Overheating protection
Theboilerisprovidedwithbuiltinoverheatingpro-
tection, which cuts off the power at approx. 80 ºC.
To reset the overheating protection function,
press button (12). Resetting is possible after the
boiler has cooled down to approx. 65 ºC. In the
event of a repeated overheating, determine the
cause of the fault and x it before restarting.

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EN.33.C.39.1707
Assembly instructions | LK Electric Portable Boiler
Technical data
Article no. 241 84 64
Output 9 kW in two stages at 4.5 kW
Voltage 3 N~ 400V AC, connection via
3-phase electric plug
Boiler must be protected using
3 x 16 A fuses (max. current
13.5 A)
Electrical cartridge 9 kW/6-tube 400 V, stainless
steel SS2353, connection 2”
Pump Grundfos UPM3 Auto L 15/70
1 phase 230V AC (factory tted
to control box)
Protection class IP 44
Operating thermostat Max 60 ºC
Safety thermostat 80 ºC
Expansion tank 12 litres
Safety valve 1,5 bar
Max. glycol solution 30%
Boiler volume 2,8 litres
PS max. pressure for
boiler jacket
1,5 bar
Dimensions (L x W x H) 710 x 430 x 650 mm
Weight 23 kg
Condensing boiler No
Low-temperature boiler No
B1 boiler No
Cogeneration space
heater
No
Rated heat output Pmärk 9 kW
Useful heat output Pmärk 9 kW
Energy class D
Seasonal space heating
energy efciency
ηs36%
Useful efciency ηs39.4%
Auxiliary electricity
consumption
On standby PSB 0.025 kW
Standing loss Pstby 0.101 kW
Recycling
The boiler should be recycled after dismantling.
Insulation is removed and sorted as insulation.
The boiler body and stand should be sorted as
scrap steel. Electronics and electronic compo-
nents should be sorted as electrical scrap.
Electric connection diagram
LK Systems AB, Box 66, 161 26 Bromma, Sweden | www.lksystems.se