
Installaon and Operang Manual Page 6
INSTALLATION
EXHAUST CONNECTION
The exhaust ducting should not be connected
into an existing chimney, boiler flue or tumble
dryer system.
The dryer must be connected directly to an exhaust
ducting system that terminates on the outside of
the building. This could be through the roof or on
an external wall. The outlet spigot on top of the
cabinet is 125mm diameter. The effective length of
the ducting ‘A’ is 23m of straight pipe. If the
diameter of the pipework is increased to 160mm,
the effective length is 70m. The effective length of
the system will vary depending on the type of
ducting material and the number of bends used.
The cabinet operates more efficiently with the
minimum length of ducting and the unit should be
positioned on an external wall if possible.
Notes:
· Rigid metal or plastic pipe is preferred although
flexible ducting can be used for some
installations within close proximity to an outside
wall.
· Wall vented systems, including fixed window
pane applications, should terminate with an
open louvre grille.
· Roof vented systems should be fitted with a
weather cowl or a downward facing bend.
· Standard tumble dryer back draught shutters
should not be used.
· Ensure that the ducting and terminal fittings are
cleaned on an annual basis.
ROOM VENTILATION
The cabinet has an exhaust airflow of up to 250
cubic metres per hour. This air has to be sourced
initially from within the room where the dryer is
installed. It is important to ensure that there is a
continuous supply of fresh air into the room. The
air intake into the cabinet is via the door surrounds
- sealing gaskets are not fitted for this reason. The
recommended free area of the air intake into the
room must not be less than 142cm2. The resistance
caused by grilles or shutters must not exceed:
10 Pa (0.1 mbar).
Commissioning the ducting system
To optimise the efficiency of the cabinet the
damper situated on top of the unit should be ad-
justed to a setting that corresponds with the pres-
sure drop in the ducting. The maximum permissi-
ble pressure drop is 70pa.
If the pressure drop is greater than this, an exter-
nal fan must be installed. The dryer has electri-
cal terminals inside the control console suitable
for connecting an external fan. The fan would
then operate only when the cabinet is in use.
If several cabinets are installed adjacent to each
other it is advisable to fit a separate ducting sys-
tem to each unit. If a single ducting pipe is to be
considered for a multi unit installation, it would be
advisable to seek professional advise from a spe-
cialist heating and ventilation engineer as back
draught devices may be required for each cabi-
net.