Plum ecoMAX920P1-S TOUCH, Инструкция по установке и эксплуатации, Страница: 28 / 48

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12.7 Connection of temperature
sensors
The controller cooperates only with sensors
of type CT4 and CT2S. The use of other
types of temp. sensors is prohibited.
Sensor wires may be extended using wires of
cross-section area not less than 0,5 mm
2 .
Total length of wires of each sensor should
not exceed 15 m.
Insert boiler temperature sensor into
thermometer well fastened to boiler shell.
Fasten feeder temperature sensor to the
surface of feeder screw tube. Insert
temperature sensor of HUW container into
thermometer well welded to the container.
The best way to mount mixer temperature
sensor is to insert it into a sleeve located in
the stream of flowing water, however, it is
also allowed to fasten the sensor in a contact
manner provided that the sensor and the
pipe are properly heat-insulated.
Mounting temperature sensor: 1 - pipe, 2 – clamps, 3 -
thermal insulation, 4 - temperature sensor
.
Sensors shall be protected against
loosening from surfaces they are
mounted to.
Make sure thermal contact between the
sensors and the surface which temperature is
measured is good. Apply thermal paste to
improve the contact. Pouring sensors with oil
or water is not allowed. Sensor wires should
be separated from power supply wires.
Otherwise, temperature indications may be
erroneous. Min. distance between these
wires should be 100 mm.
Do not allow sensor wires to contact hot
parts of the boiler and heating system. Wires
of temperature sensors are heat resistant to
the temperature not exceeding 100°C.
12.8 Connecting the weather temp.
sensor
The regulator cooperates only with a weather
temp. sensor of the CT6-P type. The sensor
should be installed on the coolest wall of the
building. Usually it is the northern wall,
under the roof. The sensor should not be
exposed to direct sunrays and rain. The
sensor should be installed at least 2 m above
the ground far away from windows, chimneys
and other sources of heat which could disturb
the temperature measurement. To connect
use wire with diameter at least 0,5 mm
2 up
to 25 m long. Polarization of wires is not
essential. Second end should be connected
to terminals of controller or properly to used
kind of controller. The sensor should be
screw to the wall. Access to assembly holes
is possible after unscrewing the cover of the
sensor.
Weather sensor connection.
12.9 Connecting the exhaust
temperature sensor
The exhaust temp. sensor should be fitted in
the boiler flue. The gap between the sensor
and the flue should be sealed. The sensor
should be installed by a qualified fitter, while
observing regulations applicable for chimney
systems. The emission sensor should be
connected to the sensor terminals acc. to
The emission sensor lead cannot touch hot
elements of the boiler and the flue, the
temperature of which exceeds 220°C.