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U
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M
SER
S AND
NSTALLER
S
2.5
Connecting unit to central heating system
1
2
Version: 4.0 (23-08-2007)
ANUAL
w
2 3
w
c
c
c
7. Apply a lock plate 3 onto each suspension bracket.
Warning:
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:
Ensure you do not run any risk, should the unit
come down.
Water-heated models CA W and CA H only
2.5.1 Particulars
Caution:
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:
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:
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.
I
NSTALLATION
15
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