Thermostat Operation; Overheating Protection - LK Armatur 298470 Manuel D'instruction

GB ENGLISH
Installation
LK 440 EasyHeat should be placed indoors/under a roof and
fully protected from rain.
The integrated safety package including automatic air-bleed val-
ve, safety valve and connecting hoses, must be installed as shown
in the product diagram (see above). Relevant building standards
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 current hot water installation stan-
dards. No thermometer 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 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
filled with water, air-bled and that the system's operating pres-
sure is sufficient.
Check to see that the circulation pump is running by listening
to and testing the various pump speed settings.

Thermostat operation

Temperature regulation is via the boiler's operational thermo-
stat (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 temperature.
Circulation
For setting up the circulation pump, see separate instruction
"Grundfos UPM3 Auto L 15/70". Note that the pump is ad-
vantageously set to work with constant pressure and that this
must be set manually according to separate instructions.

Overheating protection

LK 440 EasyHeat is provided with built in overheating
protection, which cuts off the power at approx. 70 ºC.
To reset the overheating protection function, press button (12).
Resetting is possible after the boiler has cooled down to ap-
prox. 60 ºC. In the event of a repeated overheating, determine
the cause of the fault and fix it before restarting.
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 fix it before restarting.
Safety valve
The safety valve must be tested at start-up and then at set in-
tervals 2-3 times per year. CAUTION: Take care when
as the out-flowing water/steam can cause scald injuries.
Pump graph
Electric connection diagram
testing