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We would like to inform you that an error has been detected in the description of the operation manual for the control panel PU-27.

The following description error has been found in all operation manuals for the PU-27 control panel, page 32, section Ventilation, Ventilation mode setting.

Description error version:

Ventilation	Ventilation mode ON setting
	- Ventilation mode OFF. When the heater switches to standby mode, the air pump will shut off.
	✓ Ventilation mode ON. When the heater switches to standby mode, the air pump will continue to operate in ventilation mode.

Corrected version:

Ventilation	Ventilation mode ON setting
	- Ventilation mode OFF. Heater will maintain set temperature by reducing the heating power, without shutting off the combustion process.
	✓ Ventilation mode ON. Heater will operate till the temperature is reached 1°C above the set temperature, shut off the combustion process and start to ventilate till the temperature drops 5°C below the set temperature. When temperature drops, heating starts again

This description error can be found in all operation manuals up to PU-27 operation manual version v.09.19. Page number may differ depending from operation manual language or print layout.

Corrected version of the PU-27 control panel operation manual can be found on www.autoterm.com website.

Corrected description information will be included already in the next shipment.

PU-27 Corrected Manual

Description error in PU-27 operation manual