Connections
13
Control Connections
(Continued)
Installation of a DHW tank temperature sensor and/or aquastat
1.
Install reducing coupling (included in
Connection Fitting Package). Use
approved pipe sealant.
2.
Install sensor well using sealant.
Where Vitotronic 200 or 300 is utilized
to control DHW production:
3.
Insert DHW tank temperature sensor
(supplied with Vitotronic 200 or 300)
fully and completely into sensor well.
Due to the length of the stainless steel
well (15” / 380 mm), care must be taken
to ensure that the sensing bulb of the
limit is inserted and pushed to the end of
the stainless steel well.
Where a Vitotronic 100 and a
Viessmann Power/Pump Control Module
are utilized to control DHW production:
4.
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 paneling.
Follow instructions below with regard
to sensor and spring clip installation.
... if aquastat is to be mounted remote
from the aquastat well,
5.
Align sensor bulb with spring clip.
6.
Slide assembly into well.
7.
The retention spring clip must press
the bulb properly to ensure surface
contact with the well.
... if aquastat is to be mounted directly
on the tank well,
8.
Mount aquastat with holding clip
supplied directly onto well. Bend
capillary tube into groove opening to
allow for mounting of aquastat.
5167
535
v1
.2
1.
2.
To ensure optimum, safe operation,
the supplied stainless steel well must
be installed. The well diameter is
large enough to accommodate a wide
variety of sensing bulbs.
Always use spring clip to ensure
proper contact of capillary bulb
against the stainless steel well for
proper sensing/heat transfer!
WARNING
Fig 7.
Installing sensor well
Not present on 42 and 53 USG/
160 and 200 ltr version
IMPORTANT
Fig 8.
Installing aquastat
