12
To lower the closing temperature turn the
adjustment stem (14) clockwise.
The following table indicates the closing
temperature that will be set by giving the
adjustment stem a certain number of full turns.
Note that the indicated values are based on the
factory setting.
Number of
turns
DN15
DN20
DN25
DN40
1
104
83
80
2
120
95
90
3
137
109
102
4
156
123
116
5
180
137
136
6
210
158
165
7
260
180
196
8
–
210
237
9
–
255
–
To set the max. closing temperature of 280 °C turn
the adjustment stem as often as indicated in the
following table.
Nominal size
Number of full turns
DN15
7.2
DN20, DN25
9.4
DN40
8.7
Attention!
Incorrect setting if the adjustment stem is
turned inadvertendly when tightening the
locknut.
Use a screwdriver to secure the
adjustment stem against turning when
tightening the locknut.
To secure the adjustment stem (14) against
turning fasten locknut (15) hand-tight, while
securing the adjustment stem with a
screwdriver.
To check the setting measure the return
temperature of the fluid downstream of the
equipment.
Repeat the setting procedure if the return
temperature does not meet the set value.
Adjusting the closing temperating
without external setting device
Remove cover to change the closing temperature
without using the external setting device. When
delivered, the equipment features the closing
temperature setting specified in the order.
There is a set value for each closing temperature.
The set value X is measured between the upper and
the lower spring plate.
Equipment of size DN 15 does not have a
lower spring plate. With this equipment
you have to measure the set value
between the upper spring plate and the top
edge of the hexagon part.
