Connections
10
DHW Tank Installation (42 to 79 USG / 160 to 300 ltr)
(continued)
Aquastat installation
Where a
Vitotronic 100
and a
Viessmann Power/Pump Control Module
(accessory) is utilized to control DHW
production:
1.
Insert the extended capillary of the
aquastat (supplied with Viessmann
Power/Pump Control Module, not
illustrated) fully and completely into
sensor well. Mount aquastat
inconspicuously on tank panelling.
Follow instructions in Fig 6. with
regard to sensor and spring clip
installation.
The aquastat is to be mounted remote
from the tank well as follows:
2.
Align sensor bulb with spring clip.
3.
Slide assembly into well.
4.
The retention spring clip must press
the bulb properly to ensure surface
contact with the well.
Temperature sensor installation for solar operation
The temperature sensor for solar operation is included in the solar control unit package.
1.
For solar operation, install the sensor
well into the brass elbow and
connect the assembly to the heating
return line (solar return).
The brass elbow with sensor well is
available as an accessory,
Part No. 7175 213.
2.
Insert the temperature sensor until it
bottoms out inside the sensor well.
Never wrap insulating tape around the
sensor.
Fig 7.
Aquastat installation
5
1
6
7
5
1
9
v
2
.2
Installation of temperature
sensor for solar operation
Fig. 8.
1.
2.
1.
IMPORTANT
