Shunt Group
LK 420 MiniShunt 2.0
•
•
Switchable between single and two-pipe radiator
systems
Suitable for both left-hand and right-hand mounting
LK 420 MiniShunt 2.0 is a shunt group intended for use when
smaller underfloor heating areas are to be connected to an
existing heating system. LK MiniShunt adapts the heating
system temperature to the lower temperature necessary for the
underfloor heating system. Its capacity can normally be set at a
heating need of 50 W/m2 to a maximum 60 m2 underfloor heat-
ing area. Capacity is however dependent on primary tempera-
ture, pressure, laying method etc.
• For underfloor heating areas up to 60 m2.
• Compact design.
• Energy efficient circulation pump.
• Thermostat-controlled maximum limit of supply temperature.
• Switchable between single or twin pipe systems.
• VF valve.
• Easy filling and air bleeding.
• Expandable to 2, 3 or 4 underfloor heating circuits.
ITEMS INCLUDED:
• Circulation pump Wilo Yonos Para RSB 15/6-RKA, with
automatic speed control, 1 fas 230V AC, 50 Hz, max 45W, 0,44 A.
• Thermostat with capillary tube sensor, length 2 m.
• 1thermometertoplaceinoneoftheshuntgroup’sthermo-
meter pockets.
• Hose 0.5 m for air bleeding.
• Primary connector G20 EK and 2 connectors for CU15.
• Bracket.
TECHNICAL DATA
Voltage
1 phase 230V+10%/-15%,
50/60 Hz, PE
Power consumption
Max 45 W
Max. working pressure
0.6 MPa (6 bar)
Max. differential pressure
0.1 MPa (1 bar)
Working temperature
Primary Max. 80 °C
Secondary Min. 12 °C/Max. 55 °C
Ambient temperature
Max. 60 °C
Thread standard
Rp - female thread,
G - male thread
Protection type
IP X4D
Media
Water - Glycol mixture max. 50%
Ethanol mixture max. 30%
Circulating pump
Wilo Yonos Para RSB 15/6-RKA
Material valve body
Nickel-plated Brass EN 12165
CW617N
Max valve capacity
With selfacting thermo-
stat installed:
Kvs 1,05
At room temp. approx. 20 °C: Kv 0.9
Type approval certificate
Pump: CE, EC Low Voltage Directive
(2006/95/EC) incl. additions
PUMP CHARACTERISTICS
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