Installation Manual
PPT8/12/16/22LX/LY SLIMLINE
2.3 Air flow
Suitable opening
Suitable opening
WALL
CALOREX
MODEL
PPT8
PPT12
PPT16
PPT22
Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK
Due consideration must be given to air flow i.e. do not obstruct inlet or outlet
and ensure discharge to air cannot recirculate to inlet. (See below).
POSSIBLE POSITIONS OF A CALOREX HEAT PUMP
CALOREX
> 50 cm
PLANT ROOM
SWIMMING POOL/SPA
TABLE 1
Minimum Free Area m²
Inlet
Discharge
0.157
0.168
0.264
0.168
0.322
0.173
0.322
0.173
IMPORTANT
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.
Page 7
CALOREX
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 areas is the available area through which
air can pass through a grille or louvres.
®
CALOREX
WALL
SD638150 ISSUE 11