Powrmatic manuals pdf downloads
The air handling unit containing the air heater must permit the provision of a satisfactory flue system and an adequate air supply. The location must also provide adequate space for servicing.
Heaters not fitted with the concentric terminal and flue arrangement must have provision for the supply of combustion air. This air may be admitted through suitable grilles in the air handler casing into a space that connects directly with the combustion air entry socket on the heater. This space must be sealed and seperate from the airflow sections of the air handler.