Plum ecoMAX 200 W, Руководство по эксплуатации и обслуживанию

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11.11 Connecting temperature limiter
STB
In order to prevent the boiler from
overheating
due to the regulator
malfunction, a safety temperature limiter,
appropriate for the given boiler and heating
system, should be fitted.
The limiter can be connected to terminals 1-
2, as specified in Drawing 12 . When the
limiter activate, the fan power supply will be
disconnected.
The temperature limiter must
have nominal operating voltage of
at least ~230V, and it should have
the applicable permits.
If the limiter is not connected to terminals 1-
2, a bridge should be made. The bridge
should be made of wire the section of which
is at least 0,75 mm
2
, with insulation thick
enough to comply with the boiler safety
requirements.
The current regulations demand
that a safety temperature limiter
is used.
11.12 Connecting additional thermal
protection
The ecoMAX 200 regulator can be equipped
with additional thermal protection, type DZT-
1. This is an optional equipment, available to
special order. It cuts off the fan power
supply. Sensor of the additional thermal
protection, which operates on low safe
voltage,
should be placed in the
thermometric pipe of the water jacket. You
should provide good thermal contact of the
DZT-1 sensor, and secure it against coming
loose from the measured surface.
If the boiler temperature exceeds the DZT-1
sensor activation temperature (85°C or 90°C
±5 depending on the DZT-1 type), the fan
power supply is cut off. The fan power supply
will be automatically restored after the boiler
temperature drops by 10-20 degrees Celsius.
If a DZT-1 sensor is not connected, an
electric bridge should be made at terminals
11-12.
The additional thermal
protection cannot be used
instead of the mandatory
safety temperature limiter!
11.13 Smooth fan start
During every activation of the fan, the
regulator gradually increases the airflow
power, which decreases the risk of explosion
of gases accumulated in the boiler. This
advantage is of particular significance in the
case of fine coal boilers.
The fan starts smoothly from
Minimum
revolutions to power resulting from the
algorithm within the P5 time (manufacturer‟s
parameter – fan starting time).