INSTALLATION
Installation
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STH Plus |
17
EN
GL
ISH
STH 210-415 Plus
26
�0
3�
01
�0
22
8
STH 720 Plus | STH 720-1 Plus
26
�0
3�
01
�0
22
7
8.6 Heating water connection
Note
Connect the hydraulic connections with flat gaskets.
8.6.1 Fitting the drain valve
f
f
To facilitate maintenance work on the appliance, fit a drain
valve (not included in standard delivery) in the lowest con-
nection line.
8.6.2 Fitting the air vent valve
!
Material losses
Before filling the appliance, fit an air vent valve to prevent
water damage.
8.7 Sensor installation
D
00000
70
58
7
1
6
5
4
3
2
1
Plug
4
Temperature sensor
2
Sensor lead
5
Cover sleeve
3
Spring shackle
6
Sensor well
D
00000
70
58
8
2
8
6
5
1
3
7
4
1
Cover sleeve
5
Spring shackle
2
Plug
6
Temperature sensor
3
Sensor lead
7
Cylinder wall
4
Thermal insulation
8
Sensor well
f
f
Plug the cover sleeve into the sensor well.
f
f
Bend the temperature sensor spring shackle forwards.
f
f
Route the temperature sensor through the cover sleeve and
push it into the sensor well, as far as the cylinder wall.