U
SER
’
S
AND
I
NSTALLER
’
S
M
ANUAL
I
NSTALLATION
Version: 4.0 (23-08-2007)
15
7. Apply a lock plate
3
onto each suspension bracket.
Warning:
w
The unit may come down if you do not secure the
suspension.
8. Check whether the unit is suspended firmly:
-
Try to push the unit from its suspension.
-
Shake the unit for a few seconds.
Warning:
w
Ensure you do not run any risk, should the unit
come down.
2.5
Connecting unit to central heating system
Water-heated models CA W and CA H only
2.5.1 Particulars
Caution:
c
The supply and return pipes of the central heating system
must be connected to the appropriate corresponding con-
nections
1
. The directions are indicated on the unit using
arrows.
•
The maximum permissible operating pressure of the hot
water circuit is specified on the type plate (see section
1.3.4
). It is based on a water temperature of 110 ºC.
Caution:
c
The unit has an integrated water control. The central heat-
ing connection must
not
be fitted with a control valve.
•
The water control valve will close automatically if the air
curtain and/or the heating is switched off.
Caution:
c
Biddle recommends the inclusion of a valve in each pipe.
•
The bleed valve
2
of the heat exchanger is located at the
left in the top of the unit.
2
3
2
1