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Siemens Climatix 2 Manual

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INSTRUCTION MANUAL OF THE SIEMENS CLIMATIX 2 CONTROL EQUIPMENT
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9.1. BOILER OVERHEATING
In a state of disrepair when the Boiler temperature, for any reason, exceeds the value 90 °C, the
control equipment has a double protection against overheating:
1.) Software protection against overheating
Based on the information that the Boiler temperature B2 is higher than the parameter Excess
heat draw (see chap. 5.10.), the program automatically:
- stops the fuel feeding
- stops the fans
- opens all mixing valves
- maintains all pumps in operation
This state of disrepair is indicated with the red blinking light of the indicator on button “B” - see
chap. 2. It can be cancelled only if the boiler temperature falls below 85 °C.
2.) Safety thermostat
The safety thermostat is installed on the switch-board of the control equipment.
The default value of the safety thermostat is 95 °C. If the boiler temperature reaches this limit, the
thermostat is activated and shuts down the pumps and the entire control equipment from power
supply. This state of disrepair is indicated with the red light of the indicator on button "B" - see
chap. 2. The safety thermostat can be turned on only if the temperature falls above the set value
by c. 20 °C by unscrewing the black cover of the safety thermostat and by pressing the colored
button. After that the black cover must be screwed on again.
To prevent unwanted switching of the safety thermostat due to the thermal inertia of the boiler, the
temperature of heated water at the outlet should not be higher than 80°C.
If the safety thermostat turns off repeatedly, it is necessary to put the boiler out of operation and to
determine the cause of repeated overheating of the boiler.
9.2. CONNECTION OF ROOM THERMOSTATS
In addition to the room unit SIEMENS POL 822.70, other common room thermostats can be
connected to the control equipment. They are connected to inputs H1 (for HC1), and H3 (for HC2)
on the side wall of the switch-board of the control equipment.
Before connecting the room thermostat, it is necessary to select the right polarity of the contact
(Operating/Idle) – see chap. 6.4.7. Only a thermostat that has a free contact without any potential
(e.g. SIEMENS REV24DC, SIEMENS REV24RFDC/SET etc.) can be connected to the contact of
the room thermostat. To these terminals no external voltage can be connected.
9.3. CONNECTION OF THE CLIMATIX CONTROL EQUIPMENT TO THE INTERNET
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  • salve
    chiedo se è possibile fare un by pass per far partire il sistema di condizionamento a causa dell'oscuramento :del controllore POL/STD
    grazie
    Submitted on 11-3-2022 at 12:44

    Reply Report abuse


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