Air Flow - Calorex AW631 Owners & Installation Manual

2.

AIR FLOW

Due consideration must be given to air flow, i.e. do not obstruct inlet or outlet and ensure discharge air cannot
re-circulate to inlet. (See figure 1)
Suitable opening
Suitable opening
WALL
CALOREX 31
MODEL
AW 631
AW 831
AW 1231
AW 1531
Note: If multiple units are installed in an enclosed area then the inlet free areas required for each unit can be
added together to form one inlet aperture. BUT discharge from each unit must be kept separate and must not
be incorporated into one common duct system.
FIG 1 POSSIBLE POSITIONS OF A CALOREX 31 UNIT
CALOREX 31
PLANT ROOM
SWIMMING POOL/SPA
TABLE 1
Minimum Free Area m²
Inlet Discharge
0.1648 0.114
0.2931 0.114
0.2931 0.114
0.3489 0.114
> 50 cm
CALOREX 31
Required Free Areas to provide air flow to
and from heat pumps when installed in an
enclosed area or where required to pass air
through a wall, etc.
Free area is the available area through which air
can pass through a grille or louvres.
Page 6
CALOREX 31
WALL