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20 - MANAGEMENT OF THE AUXILIARY HEATER BOARD AND THE ELECTRIC
AUXILIARY HEATERS
Management of the electric auxiliary heaters when the thermodynamic control stage is shut off by a setpoint corrected by the discharge
protection :
- The electric stages take the place of the thermodynamic stages and become the first control stages, and the outdoor air temperature
at that exact moment is stored in memory.
- The auxiliary heaters are set to the initial setpoint if P131 (setpoint adjustment based on outdoor temperature) = No. They are
set to the calculated setpoint if P131 = Yes.
- The thermodynamic stages adjust to the setpoint corrected by the discharge temperature protection.
- Whether the machine is on or off, the corrected setpoint will increase by 1°C for an equivalent rise in the air temperature until:
• Initial setpoint if P131 = No
• Calculated setpoint if P131 = Yes
- When the air temperature is > than the air temperature stored in memory + 2, the thermodynamic stages revert to being the first
control stages and the electric stages are the last and adjust to the original setpoint:
• Initial setpoint if P131 = No
• Calculated setpoint if P131 = Yes
Management of the electric auxiliary heaters when the machine is shut off by a general fault :
The electric stages take the place of the thermodynamic stages.
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