40
CONTROLLER HOUSING The controller housing should, if possible, be placed near the control
elements, taking into account the ambient temperatures, and be
easy to access in a dry location.
O
UTDOOR SENSOR The outdoor temperature sensor should be affixed about one third of
the way up the building (at least 2m from the ground) on the coldest
side of the building (north or northeast). When installing the sensor,
you should take into account sources of heat which might falsify the
result of the measurement (chimneys, warm air from air shafts, direct
sunlight, etc.). The cable outlet must always point down to avoid
moisture penetration. For the electrical installation, a cable with the
designation JYSTY 2 x 2 x 0.6 mm
2
with a maximum length of 50 m
should be used.
H
EATING CIRCUIT SENSOR The heating circuit temperature sensor serves to measure the supply
temperature for heating circuits controlled by mixers. The sensor
should be installed at a distance of approx. 30 cm after the circulation
pump on a bright metal part of the supply line.
B
UFFER TANK SENSOR AND HOT
WATER SENSOR
The temperature sensors are immersion sensors with a moulded
cable and serve to measure the temperature of the buffer tank and
the hot water tank.
I
NDOOR THERMOSTAT UNIT
(
ROOM SENSOR)
With the room sensor, the preset room temperature can be altered
by 2 - 3 °C. A selection switch allows the operating status for each
heating circuit to be changed.
Before installing the room sensor, a suitable installation location
must first be found. In order that only the actual room temperature is
measured, this may not be in an area where sunlight falls, where
there's a draft, a radiator, a chimney etc. It should also be on an
interior wall.
The most appropriate room is the room where the inhabitants spend
most time (e.g. living or dining room). In this room, no other source of
heat should be used (e.g. tiled stove).
If there are thermostatic valves on the radiators, these must be set
higher than the room temperature in the control system. Their
influence would distort the supply to the heating circuit and all other
rooms would become too warm. In all of the other rooms however,
thermostatic radiator valves must be fitted.
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