Overheat protection of electric heater
If the input "ElHtg_MaxThermostat" detects an alarm (= 1), the "PlantMode" will
- start plant mode "6" delayed switch off - for the time defined in parameter STOP-02
- after STOP-02 has elapsed, it will stop the air handling and display plant mode "22"
Parameter STOP-01 has to be set to the value 2 - heating or DX cooling .
Depending on the setting of the parameter (ALM-03), the overheat alarm reset will be done as follows:
- In case of manual reset, plant mode “22” will be kept until
- the alarm condition has been solved "(ElHtg_MaxThermostat" input is false (= 0)) and
- a manual reset action
Hint: Connect the "Reset" output of the macro RSN_AHUManSwitch to the "Reset" input of the plant strategy macro
Switch to the Off position for more than 1 second.
- In case of automatic reset, plant mode “22” will return to the normal actual code, as soon as the alarm condition has been solved ("ElHtg_MaxThermostat" input is false (= 0)).
Description
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Default value
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STOP-01: delayed switch-off type
0 = no delayed switch-off
1 = humidification
2 = electric heating or DX cooling
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1
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STOP-02: delayed switched-off time
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180 sec
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ALM-03: reset type maximum thermostat - electric heater
0 = manual
1 = automatic fan on
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1
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