LK 816 ThermoKit E Eco Instruction Manual

ENG | Instruction Manual
LK 816 ThermoKit E Eco
Grundfos UPMXL 32-105 180

TECHNICAL DATA

Voltage
Primary voltage, adapter
Secondary voltage, adapter 24 VDC 250 mA
Power consumption
Return temperature
Working temperature
Ambient temp.
Max. working pressure
Angle of rotation
Torque
Max. flow
Media
Thread standard
Circulating pumps
Operation time
Protection class
Material, valve body
Material, insulation

GENERAL INFORMATION

LK 816 ThermoKit E Eco is a loading group for heating applica-
tions with solid fuel boilers and storage tanks. The loading group is
intended to ensure a high return temperature as well as an optimal
temperature stratification in the storage tank, thus increasing the
efficiency of the system. Tarring and condensation are prevented
which prolongs boiler life.

INSTALLATION AND MAINTENANCE

LK 816 ThermoKit E 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
tempera ture sensor is attached to the return circuit of the boiler.
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 pos-
sible air vent valves have to be installed.
The loading group normally requires no maintenance. The installa-
tion 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.

DANGER!

Risk of electric shock!
• Before starting installation work the power supply must be reliable
disconnected
• All work must be performed by qualified personnel.
1
230 VAC 50/60 Hz
100-240 VAC 50/60 Hz
10-180 W depending on pump
speed, LK 100 Smart Comfort CT, 3 VA
5°C-99°C
Min. +5°C/Max. +95°C
Min. +5°C/Max. +40°C
1.0 MPa (10 bar)
90°
5 Nm
Dependent on circulating pump
Water - Glycol mixture max. 50%
Rp - female thread
Grundfos UPMXL 32-105 180
140 sec.
IP 40
Brass EN 12165 CW617N
Expanded Polypropylene EPP
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THE FUNCTION OF THE LOADING UNIT DURING THE DIFFERENT THE FUNCTION OF THE LOADING UNIT DURING THE DIFFERENT
PHASES OF HEATING 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 mixing valve starts to open and allows return wa-
ter 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 mixing valve is fully open towards the storage tank.
This results in an optimal transfer of heat from the boiler and the storage
tank is filled with supply water. When the boiler has cooled the electronic
controller prevents re-circulation from storage tank to boiler.
4. Self-circulation - In case of power failure or pump breakdown the elec-
tronic controller can be manaully operated and the storage tank is loaded
through self-circulation.

ITEMS INCLUDED

• Circulating pump - Grundfos UPMXL 32-105 180
• LK 840 ThermoMix mixing valve
• LK 100 SmartComfort CT controller with adjustment of the lowest
return temperature 5°C-99°C.
• 3 Ball valves to simplify installation and maintenance
• 1 Fittings 2" with rotating nuts
• 2 Sealings - EPDM for connection to the pump
• 3 Sealings - KLINGERSIL

BOILER CAPACITY DIAGRAM

PUMP CHARACTERISTICS