Heater Mounting; Water Connection - Bosch WR 11 B Installation Manual And Operating Instructions

12 | Installation (must be carried out only by quali ed technicians)
3
L (m) h (cm)
0 - 1 3
1 - 2 6
2 - 3 9
3 - 4 24
Fig. 11 Minimum clearances
Combustion gases
DANGER:
Make sure that all ue connections are tighten
sealed.
Failure to follow this requirement may
cause dangerous exhaust gases to enter
living space which may result causing
personal injury or loss of life.
• All gas heaters must be connec
a gas evacuation pipe of adequate dimensions.
• The ue must:
– be vertical (reduced horizontal sections or no
horizontal sections at all)
– be thermally insulated
– have an exit above the maximum roof level.
• The combustion gases evacuation pipe must be inserted in
the ue ring. The external di
slightly less than the diameter of the ue indicated in the
table of heater dimensions.
• The extremity of the evacuation pipe must be protected
against wind/rain.
CAUTION:
Ensure that the extremity of the evacuation
pipe is placed between the ledge and the ring
of the ue.
6720648592 (2014/05)
h
3
3
40
6720607539-02.6Av
ted in a leak-roof manner to
ameter of the pipe must be
If these conditions cannot be me
selected for the gas intake and evacuation.
Surface temperature
The maximum surface temperature of the heater is less than
85 °C, with the exception of the combustion gases evacuation
device. No special protection measures are required for
ammable construction material
Air intake
The place where the heater is to be installed must have an area
of air supply according to the table.
Heater
WR11B
WR14B
WR18B
Table 7 Useful areas for air intake
The minimum requirements are listed above; however, each
country's speci ed requiremen
5.3

Heater mounting

Remove the temperature/ ow selector and the power
selector.
Unscrew the front xing screws.
With a simultaneous movement
release the front of the two lugs from the back.
Fix the heater vertically, using the provided screw hooks
and plugs.
CAUTION:
Never support the gas heater on the water or
gas connections.
5.4

Water connection

It is advisable to purge the inst
presence of dirt may reduce the ow and, in extreme cases,
cause a blockage.
Identify the cold water pipe (Fig. 12, item A) and the hot
water pipe (Fig. 12, item B), so as to avoid any possible
mis-connection.
t, a di erent location must be
s or built-in furniture items.
Minimum useful area
2
60 cm
2
90 cm
2
120 cm
ts must also be respected.
towards you and upwards,
allation beforehand, because the