General Information; Technical Data; Pump Characteristics; Installation And Maintenance - LK Armatur TermoKit T Eco Manuel D'instruction

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General Information

LK 815 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 tem-
perature as well as an optimal temperature stratifi cation
in the storage tank, thus increasing the effi ciency of the
system. Tarring and condensation are prevented which
prolongs boiler life.

Technical Data

Voltage
Power consumption
Max. boiler effi ciency 140 kW at 20°C ΔT
Return temperature
Working temperature Min. +5°C/Max. +95°C
Ambient temp.
Max. working pressure 1.0 MPa (10 bar)
Max. fl ow
Media
Thread standard
Circulating pumps
Material, valve body Brass EN 1982 CB753S
Material, insulation
Boiler Capacity Diagram
200
180
160
140
120
100
80
60
40
20
0
0.0 1.0 2.0

Installation and Maintenance

LK 815 ThermoKit T Eco is installed in the return circu-
it 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.
4
230 VAC 50/60 Hz
12-140 W depending on pump speed
45°C, 50°C, 55°C, 60°C, 65°C or 70°C
Min. +5°C/Max. +40°C
5900 l/h
Water - Glycol mixture max. 50%
Rp - female thread
Grundfos UPML 25-95 180
Expanded Polypropylene EPP
3.0 4.0 5.0
Flow (m³/h)
Danger!
Risk of electric shock!
• Before starting installation work the power
supply must be reliably disconnected.
• All work must be performed by qualifi ed
personnel.
Items Included
• Circulating pump - Grundfos UPML 25-95 180
• LK 823 ThermoVar thermic loading valve with
insulation
• 1 Check valve
• 1 Thermometer for reading return temperatures
• 3 Ball valves to simplify installation and maintenance
• 4 Fittings 1½" with rotating nuts
• 2 Sealings - EPDM for connection to the pump
• 5 Sealings - KLINGERSIL
110
100
CP3
90
80
CP2
70
60
CP1
50
40
30
20
10
0
0.0
6.0
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.

Pump Characteristics

1.0 2.0 3.0 4.0
F F low (m³/h)
5.0 6.0 7.0