Bedienungsanleitung Siemens Climatix 2 (Seite 59 von 77) (Englisch)

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INSTRUCTION MANUAL OF THE SIEMENS CLIMATIX 2 CONTROL EQUIPMENT

 Simulation outside temperature - if the function “Simulation outside temperature” is used

during putting the boiler into operation or during resetting the modified or attenuated

temperature and setting the new required value, the control equipment indicates that this

function is being used for the service technician not to forget to turn off this function after

finishing the process. If stars are set on the respective line, the function turns off.

 Safety thermostat - indicates that the boiler is overheated and its temperature exceeds the

temperature set by the used safety thermostat – see chap. 9.2.

 O2 Heater error - if the oxygen sensor is used, this message indicates that heating of the

monitoring part of the sensor does not work. It may be caused by the incorrect connection,

by the loss of supply voltage or by the sensor damage, e.g. by silicone vapors in flue gases.

 Boiler hopper lid - indicates either the boiler hopper lid is opened (if the boiler hopper lid

sensor is used) or that the thermocontact of the boiler feeder is overheated.

 Loss of flame - operation - it indicates that the fuel in the burner has burnt out (loss of

flame) when the configuration of the boiler without ignition is used. It may be caused by the

operator failure to refill the fuel storage tank, crust formation of caked fuel, by the incorrect

setting of the fuel feeding during operation, etc. The limit for activating this error can be set

in the service menu and it is necessary to find an optimal setting when the boiler is put into

operation according to the type and quality of the fuel and according to the structure of the

heating system.

 Loss of flame - reduce - it indicates that the fuel in the burner has burnt out (loss of flame)

when the configuration of the boiler without ignition or without emptying is used. It may be

caused by the operator failure to refill the fuel storage tank, crust formation of caked fuel, by

the incorrect setting of the fuel feeding during reduce, etc. The limit for activating this error

can be set in the service menu and it is necessary to find an optimal setting when the boiler

is put into operation according to the type and quality of the fuel and according to the

structure of the heating system.

 Low flue gas temperature B8 - when the boiler is in the mode “reduce”, not only the

difference between the flue gas temperature B8 and the water temperature at the boiler

outlet B2 are monitored. The minimum flue gas temperature B8 is monitored as well. If the

temperature values fall below this limit, the system reports an error and the boiler in the

mode “reduce” is put out of operation. When this parameter is set, the real operating

parameters, the type and quality of fuel and other aspects must be taken into consideration.

 Modbus error - it indicates the loss of communication of the converters of the oxygen

sensor and of the Climatix controller while using the modbus communication protocol RTU

(RS485).

 Power supply of O2 sensor - error - it indicates an error in the power supply circuit of the

oxygen sensor. It is possible to try to correct this by the function “delete message” in the

menu of the oxygen sensor. If it does not help, it is necessary to replace either the

converter or the entire oxygen sensor.

 O2 under 0.1% - it indicates that the oxygen sensor has measured the O2 concentration

lower than 0.1% for a longer time. This can result in damaging the sensor. This error can

also be a parallel effect of a failure in sensor heating or of an error in the modbus

communication.

 PCB temperature - it indicates that the temperature of the converter of the oxygen sensor

is higher than 85°C. This means that the converter is overheated and it may be damaged.

The temperature 85°C represents the limit. The cause of this may be an inconvenient

installation of the converter which may be too close to the chimney body or the insufficient

natural cooling (based on selection of the dimension or material of the assembly box).

9. OTHER

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