HEX390 Installation & Commissioning Instructions September 2016
7
HEX
Drain
adaptor
P trap in condensate
drain hose
Drain Adaptor
Bottom of unit
Drain installation
Securely attach the provided drain adaptor
(located inside HEX filter cover) to the bottom of
HEX unit. HEX unit must be level. Run the drain
tubing from the adaptor to outside with a “P trap”,
as illustrated.
Fresh Air and Exhaust Grille
Install underneath the soffit with a minimum 6m
separation between the exhaust and fresh air
grille to prevent cross contamination. Use the
nude and acoustic ducting (Silentflex) from the
fresh air and exhaust grilles respectively to the
unit. If access is limited, please consider using
through roof cowls, such as the MAD204T.
Return Grilles
Mount the provided return air grilles as suits the
homeowner, one in the heat source room and one
in the hallway central to the supply grilles. Use
the Insulated ducting from the grille to the unit.
Exhaust Air
Return Air filter
HEX body
Supply Air
Return Air
Outside Air
Fresh Air filter
Filters
The unit is supplied with two G3 pre filters. If
required, an F7 filter (FBPF7) can be
installed in the supply side for extra filtration.
Alternatively a standard EU2 filter can be used
(FBPF2).
Supply Grilles
Mount the provided supply air grilles as suits the
homeowner, bedrooms and living areas, with a
maximum of five outlets for optimum performance.
Use the acoustic ducting. It is recommended that
the supply outlet be between these grilles and the
unit.
Cleaning the filters
The internal filters are designed as secondary
filters (there should be extended surface filters
cleaning the air before reaching the unit).
However, when unit filters are heavily soiled,
wash or replace the filter material with "
HexFilter
"
(234x380mm) or "
HexFilter 222
" (222x380mm) for
2015 and earlier models.
To wash: use vacuum cleaner to remove excess
dust, then wash in warm detergent treated water,
keep filters flat or leave in frame to wash.
