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DANGER, RISK OF ELECTRIC SHOCK !
- Before starting installation work the power supply
must be reliably disconnected.
- All work must be performed by qualified
personnel.
General information
LK815 ThermoKit T Eco is a loading group for heating applications with solid fuel boilers
and storage tanks. The loading group is intended to ensure a high return temperature
as well as an optimal temperature stratifi cation in the storage tank, thus increasing the
efficiency of the system. Tarring and condensation are prevented which prolongs boiler life.
Items included
Circulating pump - Grundfos Alpha 2L 25-60 with insulation
Q
LK820 ThermoVar thermic loading valve with insulation
Q
1 Check valve
Q
1 Thermometer for reading return temperatures
Q
3 Ball valves to simplify installation and maintenance
Q
1 Fitting 1½" with rotating nuts
Q
5 Sealings EPDM
Q
The function of the loading unit during the different phases of heating
1/ Heat up phase
The water circulates between boiler and loading group while the temperature of the
boiler is rising.
2/ Loading phase
The thermic valve starts to open and allows return water from the storage tank to be
mixed with supply water before it returns to the boiler. The return temperature to the
boiler is kept constant.
3/ End phase
The thermostatic element is fully open. This results in an optimal transfer of heat from
the boiler and the storage tank is fi lled with supply water.
4/ Self-circulation
As soon as the fi re has gone out and the circulating pump has stopped the remaining
hot water in the boiler is loaded to the storage tank as long as the thermic valve remains
open. When the boiler has cooled the thermic valve closes. The check valve prevents
recirculation from storage tank to boiler.
Installation and maintenance
LK815 ThermoKit T Eco is installed in the return circuit between the solid fuel boiler and
the storage tank. The group should be mounted with the drive-shaft of the circulating
pump in a horizontal position.
The loading group is reversible and can easily be adapted for mounting to the right or
left of the boiler (See Figure 1 & 2 on the back page.)
For trouble-free operation of the heating application the piping should not allow air pockets
to be formed in the system. Should this not be possible air vent valves have to be installed.
The loading group normally requires no maintenance. The installation should be checked
regularly. Thanks to the three ball valves any part can be changed without draining the
system, should the need for servicing arise.
EN
Instruction manual
Boiler capacity diagram
Pump characteristics
Dimensions
LK815 ThermoKit T Eco
Flow (m³/h)
Flow (m³/h)
347 mm
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