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EN.33.C.134.1512

Assembly instructions | LK Minishunt M60

Assembly

32 mm

7 mm

PE

L

N

Click!

Disassembly

1

2

3

Function & requirements

In order for the correct operation of the LK Mi-

nishunt M60/under floor heating system, the 

existing heating system must be fitted with a 

circulation pump and preferably with a weather 

dependent flow temperature control. With the LK 

Minishunt M60 the temperature of the heating 

system is adapted to the lower temperature that 

is required by the under floor heating circuit. Pri-

or to assembly, the heating system must be flus-

hed through and must not contain any impurities 

or additives, which can damage the shunt.

Assembly

The LK Minishunt M60 must be mounted at a hig-

her level than the under floor heating installation 

in order to assist air bleeding. Pay attention to any 

structure-borne noise from the minishunt when 

placing it. The shunt should preferably be place 

in specially designed cabinet to fulfil Sweden’s 

plumbing safety regulations, see heading 

Instal-

lation cabinets

.

Pipe connection

The minishunt´s primary connection is provided 

with a ¾” EuroCone thread. Pipe connection to 

the primary side is made using the enclosed fit-

tings for 15 mm Cu Connectors for Cu 12 mm 

and to PEX-/PAL pipes dimension 16x2, 20x2 

and 20x2, 8 mm are available as accessories. The 

secondary connections of the minishunt have ½” 

female thread. The under floor heating pipes are 

connected for a floor heating circuit using LK 

Connection Coupling ½” male thread for pipe 

dim. 8,12,16 or 20 mm. For more circuits, LK Mini 

Manifold 2, 3 or 4 circuits for pipe dim. 8, 12, 16 

or 20 mm, are available.

Electrical connection of circulation pump

Electrical connection of the pump must be carried 

out by a qualified electrician in accordance with 

applicable regulations. The pump is equipped 

with a fixed 3-core cable and Wilo-connector with 

integrated strain relief. The Wilo-connector repla-

ces the requirements for 2-pole circuit breaker. 

Connect the supply cable L, N, PE to the Wilo-

connector according to the following sequence. 

The electrical connection must be fused with Max 

10 A slow blow fuse. Note that at any maintenan-

ce/repair work the pump power supply must be 

disconnected. Motor protection for the circula-

tion pump is not required.

Summary of Contents for Minishunt M60

Page 1: ...heating areas up to 60 m de pending on heating requirements laying proce dures etc and is connected to an existing heating system The shunt unit consists of an automatic speed controlled circulation pump for the under floor heating circuit a maximum limit function for the feed temperature a return valve for the under floor heating circuit a fill discharge and air bleed valve plus a thermostatic va...

Page 2: ... connection The minishunt s primary connection is provided with a EuroCone thread Pipe connection to the primary side is made using the enclosed fit tings for 15 mm Cu Connectors for Cu 12 mm and to PEX PAL pipes dimension 16x2 20x2 and 20x2 8 mm are available as accessories The secondary connections of the minishunt have female thread The under floor heating pipes are connected for a floor heatin...

Page 3: ...ctric LK Actuator and is installed according to the se quence below Click Assembly of supplied thermostat To install the supplied thermostat with capillary tube connected sensor dismantle the hand actua tor and the black threaded adapter according to the sequence below The capillary tube connected sensor is preferably placed on a interior wall As accessory a thermostat with 5 m capillary tube alte...

Page 4: ...adjustment should be carried out as described below If the available drive pressure and flow on the primary side are known the theoretical adjust ment for the minishunt can be calculated refer to the project planning instructions for LK Floor Heating 1 Carry out air bleeding of the floor heating system and the minishunt as shown above Installation cabinets To conceal the installation there are cab...

Page 5: ...eeds for 10 min The venting routine is indicated with a fast flashing green diode light After completing the venting process the con stant pressure curve that best matches the requirements of the system is chosen See capacity chart below 3 Set the switch 2 for single or twin pipe radiator systems twin pipe radiator sys tem is factory set at delivery For single pipe systems the outer hex screw spin...

Page 6: ... pump s automatic venting routine to remove accumulated air in the pump s rotor chamber The automatic venting routine start after 3 seconds and lasts for 10 minutes Venting routine indicated by a fast flashing green diode light After complete venting choose the constant pressure curve that best matches the re quirements of the system see capacity chart be low If no choice is made the pump operatio...

Page 7: ...y replace the pump Trouble shooting The under floor heating circuit does not get warm Check that the shut off valves for 2 and the return valve 7 are open Check the setting on the maximum limiter valve 6 Check the connection operation and setting of the circulation pump If the above adjustments have been performed and there is still no heat reaching the under floor heating circuit this can be an i...

Page 8: ...2x58m 2x69m 3x54m 3x61m 3x69m 4x58m 4x63m 4x69m 5 Clip Rail 16 c c 160 mm 1x35m 1x70m 1x105m 2x70m 2x88m 3x70m 3x82m 3x93m 4x79m 4x88m 4x96m 6 Clip Rail 20 c c 300 mm 1x19m 1x38m 1x57m 1x76m 2x48m 2x57m 2x67m 2x76m 3x57m 3x63 3x70m 3x76m 7 HeatFloor 22 pipe dim X16 c c 200 mm 1x29m 1x57m 2x43m 2x57m 2x70m 3x57m 3x67m 3x76m 4x64m 4x70m 4x78m 4x85m 8 Floor Joist Plate 16 c c 200 mm 1x29m 1x57m 2x43m...

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