Biddle SensAir, Manual

Page: 25 / 208

S
ENS
A
IR
M
ANUAL
I
NSTALLATION
Manual version 1.0- North America (13-09-2016) en-25
en
7. Fit a lock plate
3
to each suspension bracket.
Warning:
w
The unit may fall down if you do not secure
the suspension.
8. Check whether the unit is suspended firmly:
2.4 Connecting the unit to the central heating system
Only for water-heated models (type H3)
2.4.1 Special points regarding the water connection
Caution:
c
The central heating system’s supply and return pipes
must be attached to the correct corresponding
connectors
1
. On the unit, the directions are
indicated with arrows.
Caution:
c
The unit has an integrated water-side control. The
central heating connection must NOT be fitted with
a control valve.
Caution:
c
Biddle recommends the inclusion of a valve in both
pipes.
• The maximum permissible operating pressure of the hot
water circuit is specified on the type plate. It is based on a
water temperature of 110 ºC (230°F).
SYMBOL
FEED PIPE
SYMBOL
RETURN PIPE
arrow points towards the
connection arrow points away from the
connection