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Installation manual

3

EKMV EKMV3C09B7

2-way valve kit/3-way valve kit for fan coil units

4PW65144-1B – 10.2011

2

Mount the valve on the water piping.

1

Install the o-ring in the water piping connection. In case of a
3-way valve, install the second o-ring in the second water
piping.

2

Install the valve on the inlet water piping

2-way valve

3-way valve

3

Connect the field piping.

The complete water circuit, inclusive all piping, must be
insulated to prevent condensation and reduction of the capacity
(minimum thickness: 10 mm).

If the temperature is higher than 30° and the relative humidity is
higher than 80%, the thickness of the sealing materials should
be at least 20 mm in order to avoid condensation on the surface
of the sealing.

4

Seal the valve and piping connections.

1

Add the "insulation for valve" (1) around the valve and the
sealing of the unit piping and the field piping.

2

Close the sealing off with the insulation tape (2).

Example: 3-way valve

Pay attention to the 

 mark on the 2-way valve

body.

The arrow must point inside the inlet water piping of the fan
coil unit.

Make sure the actuator is 

not

 installed upside down.

Pay attention to the 

 mark on the 3-way valve

body.

The long arrow must point inside the inlet water piping of
the fan coil unit.

In case 2 valves are installed on the same fan coil unit
(4 pipe model), use the same method described above to
install the second valve.

1

2

1

2

Required thread type on the field piping side

No valves 
installed

2-way 
valve(s) 
installed

3-way 
valve(s) 
installed

2 pipe 
unit

Water in 

3/4" male 
BSP

3/4" female 
BSP

3/4" female 
BSP

Water out

3/4" male 
BSP

3/4" male 
BSP

3/4" female 
BSP

4 pipe 
unit

Water in 
Heating

3/4" male 
BSP

3/4" female 
BSP

3/4" female 
BSP

Water out 
Heating

3/4" male 
BSP

3/4" male 
BSP

3/4" female 
BSP

Water in 
Cooling

3/4" male 
BSP

3/4" female 
BSP

3/4" female 
BSP

Water out 
cooling

3/4" male 
BSP

3/4" male 
BSP

3/4" female 
BSP

In case a 3-way valve is used, adjust the bypass opening
to regulate the pressure drop. See databook for more
information.

1

Insulation for valve

2

Insulation tape

1

2

2

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