Product Manual

Appendix 2: Optional air return adapter (AC01392)
The optional air return adapter (AC01392) can be added to the furnace blower box to
increase the efficiency of your system. This option allows you to take in the fresh air from
the rooms connected to the return system and bring it back towards the furnace to be heated.
This option can be installed on either sides of the blower box. Complete installation
instruction can be found in the instruction booklet provided when purchasing this option.
1 air return adapter
2 caps
1 filter
N.B.: TO ENSURE ADEQUATE STATIC PRESSURE, THE SYSTEM SHOULD BE BUILT
IN A WAY THAT THE VOLUME OF COLD AIR RETURN IS AT LEAST EQUAL OR
SLIGHTLY HIGHER THAN THE VOLUME OF THE HOT AIR DISTRIBUTION.