Frico sf18wl [15/24] Water control

AV25, stop valve

The stop valve consists of a ball valve which

is either open or closed and is used to shut off

the ﬂow, when servicing for example.

JVF20/25, adjustment valve

The adjustment valve can be used to ﬁnely

adjust or shut off the water ﬂow manually.

The adjusted water ﬂow can be read directly

off the valve. JVF20 has a kv value of 3.5 and

JVF25 has a kv value of 5.5.

To be supplemented with a suitable

thermostat for control.

If the three way valve (TRV20/25) is closed,

a low ﬂow passes through the by-pass valve

(BPV10) so that there is always warm water

in the water coil. This is to provide quick

heat supply when a door is opened but also to

provide a degree of frost protection. Actuator

(SD20) controls the heat supply on/off.

TRV25 is DN25 (1”). The by-pass valve is

DN10 (3/8").

SD20, actuator

on/off 230V~ (soft close)

For control of the water supply. Works on/off.

A 5 second cycle of opening and closing of the

valve prevents sudden pressure changes in

the pipe system. IP40.

Water control

VKSF, three-way motor valve with actuator and by-pass valve can be

integrated in the unit.

SF WL