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6 (9)

EN.33.C.111.1804

Assembly instructions | LK Electric Boiler - 4,5

Operation and maintenance

Tillse att pannan är vattenfylld innan den startas

Boiler must be filled with water before start

Min. 0,5 Bar
Max 2,5 Bar

10°

20°

30°

40°

50°

60°

1

0

4

3

2

bar

°C

120

80

60

40

20

0

100

7

2

3

6

4

5

1

Control panel

1.  Thermometer
2.  Manometer
3.  Resetting overheating (maximum safe tem-

perature) protection 

4.  Thermostat/temperature setting
5.  Control switches
6.  On/off indicating light, goes on when vol-

tages is supplied to the boiler

7.  Indication, overheating (maximum safe 

temperature) protection triggered

Inspect, together with installer, after the instal-

lation, that the unit is in a satisfactory condition. 

Have the installer demonstrate how the unit works, 

and should be handled.

The boiler and the heating system must be filled 

with water before the circuit switch is set to on.

The boiler cover should be assembled during ope-

ration.

Note!

 Monitor the amount of water in the vessel, which 

accrues waste water from the safety valve, regularly. This 

is important in a new system!

Alternative connection

4,5 kW / 230 V 1N~ / 19,6 A

Feed cable: 3 x 4 mm²

Protection fuse: 20 A

Mount DIN-rail, 3-pole terminal block with end 

plate, and connect cables supplied as shown in 

wiring diagram below.

ALARM

OPERATION

Alternative connection , 4,5 kW / 230 V ~ / 19,6 A

Summary of Contents for Electric Boiler-4.5

Page 1: ...wall mounted elec tric boiler intended primarily for low temperature heating systems e g under floor heating LK Electric Boiler 4 5 kW is delivered as a complete unit The boiler is ready for use once the water and electricity are connected The boiler includes Thermostat Overheating maximum safe temperature protection Indication power on and triggered overhea ting maximum safe temperature protectio...

Page 2: ...stment valve should be open by at least half a revolution 1 2 1 Isolation valve supply and return 2 By pass valve accessible after the protective plug has been unscrewed Installation system outline Below is a system outline Units should always be installed according to regulations and standards 4 1 2 3 1 LK Electric Boiler 4 5 2 Filling valve Drain valve 3 Manifolds under floor heating 4 Under flo...

Page 3: ...de any one of 10 curves can be selected by turning the button When the button has been released for 10 sec the pump returns to operat ing mode the LEDs stop flashing and the selected curve becomes active A lit red LED indicates an alarm or warning Indication Fault Status Measure Red fourth yellow Motor blocked Pump tries to restart at 1 5 sec intervals Release motor impeller or wait Red third yel ...

Page 4: ...ied out under the supervision of an authorized installer Electric installation Electric installation should be carried out in accor dance with the applicable regulations under the supervision of an authorized electrician The boiler must not be connected to the electrical supply before it is filled with water The boiler should be preceded by all pole circuit switches The ambient temperature must no...

Page 5: ...capacitor 5 Circulation pump 6 Overheating maximum safe temperature protection 7 Thermostat 8 Electric cartridge 9 Control switches 10 Alarm indication overheating maximum safe temperature protection triggered 11 On off indicating light goes on when vol tage is supplied to the boiler 12 Contacts External switching room thermostat The boiler can be blocked by external equipment e g room thermostat ...

Page 6: ...perature protection triggered Inspect together with installer after the instal lation that the unit is in a satisfactory condition Have the installer demonstrate how the unit works and should be handled The boiler and the heating system must be filled with water before the circuit switch is set to on The boiler cover should be assembled during ope ration Note Monitor the amount of water in the ves...

Page 7: ...ox 35 40 C and for wooden joists approx 40 45 C The desired temperature varies according to the time of year Safety valve The safety valve should be exercised regularly to maintain the safety function Overheating maximum safe temperature protection The overheating maximum safe temperature pro tection on the boiler is triggered when the boiler temperature exceeds 80 The protection is restored on th...

Page 8: ... the boiler temperature falls below 65 C push the button hard for reset No or insufficient heat Thermostatic valves on the heating system or boiler thermostat set at too low temperature Inspect and adjust Faulty adjustment of bypass valve Inspect and adjust Group fuses for boiler are triggered The electric cartridge is broken Inspect the electric cartridge by testing it in isolation Measure betwee...

Page 9: ...iler no Cogeneration space heater no Combination heater no Rated heat output Prated 5 kW Useful heat output at rated heat output P4 4 5 kW Energy class D Seasonal space heating energy efficiency boiler boiler with UTK ηs ηs 36 38 Useful efficiency η4 39 7 Auxiliary electricity consumption in stand by mode PSB 0 019 kW Standby heat loss Pstby 0 037 kW Material recycling After dismantling the boiler...

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