Instruction manual - GB
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GB-25
GB
25. Laddomat 21/22
With its construction, Laddomat 21/22 replaces the
traditional connection composed of individual parts.
It consists of a cast-iron body, thermoregulatory
valve, pump, non-return flap valve, ball valves and
thermometers. When the water temperature reaches
78 °C, the thermoregulatory valve opens the water
supply from the storage tank. The connection with
Laddomat 21/22 is considerably easier and therefore,
we recommend it. A spare thermo-cartridge of 72 °C
is supplied with the Laddomat 21/22 device. It is used
for boilers over 32 kW.
OPERATION DATA
Max. operating pressure
0,25 MPa
Design pressure
0,25 MPa
Withstand test pressure
0,33 MPa
Max. operating temperature
100 °C
WARNING
-
Laddomat 21
is designed only for boilers with output up to 75 kW. However,
we recommend using it only with boilers with
output up to 50 kW
(inclusive).
For boilers with an
output from 15 up to 100 kW
we recommend using
Laddomat 22
,
which is factory fitted with thermo-cartridge of 78 °C.
26. Thermoregulatory valve
Thermoregulatory valve type TV 60 °C (65, 72, 78 °C)
is used with solid fuel boilers. When the boiler water tem-
perature r 60 °C, the thermoregulatory valve
opens and fluid from the building heating circuit (2) en
-
ters the boiler circuit (3 →1). Inlets 1 and 3 always re
-
main open. This ensures that the minimum temperature
of the water returning to the boiler is maintained. If need
be, a thermoregulatory valve set to a higher temperature
(E.g. 72 °C) may be used.
Recommended size of the thermoregulatory valve
For boilers: D15P, D20P ................................................................................... DN 25
D30P, D40P .................................................................................. DN 32
D50P .............................................................................................. DN 40
thermometer
thermometer
thermometer
thermal valve
Willo
RS25/70
ball valve 1 1/4”
ball valve 1 1/4”
non-return flap valve