Bosch WBN 6000-30-H-E-N/L-S2400 - Checking the Size of the Expansion Vessel; Siting the Appliance

10 | Installation
Gaz 6000 W8 716 473 216 (2014/09)
Mono-lever taps and thermostatic mixer taps
All mono-lever taps and thermostatic mixer taps can be used.
LPG
To protect the appliance against excessive pressure:
▶ Fit a pressure regulator with a safety valve.
5.2 Checking the size of the expansion vessel
The following diagram provides you with a rough estimate of whether the
installed expansion vessel is sufficient or whether an additional
expansion vessel is required.
The characteristic curves shown are based on the following key data:
• 1% water volume in expansion vessel or 20% of nominal volume of
expansion vessel
• Differential operating pressure of the safety valve of 0.5 bar,
according to DIN 3320
• Pre-charge pressure of expansion vessels matches static head of the
system above the heat exchanger
• Maximum operating pressure of 3 bar
Fig. 6
I Pre-charge pressure 0.2 bar
II Pre-charge pressure 0.5 bar (default setting)
III Pre-charge pressure 0.75 bar
IV Pre-charge pressure 1.0 bar
V Pre-charge pressure 1.2 bar
t
V
Flow temperature
V
A
System content in litres
A Operating range of the expansion vessel
B Additional expansion vessel required
▶ If intersection is on the limit: determine the exact size of the vessel
according to DIN EN 12828.
▶ If the intersection is to the right of the curve: install additional
expansion vessel.
5.3 Siting the appliance
Regulations concerning the installation site
Fig. 7
Key to illustration
450 500350 400250200 300150100500
30
90
70
80
60
50
40
6 720 610 421-07.2O
T/°C
V
A
/l
B
A
IV
III
II
I
V
Fan assisted flue terminal position
Terminal Position
Minimum
Spacing
A Directly below, an opening window, air vent or
other ventilation opening
1000mm
B Below guttering, drain pipes or soil pipes 75mm
C Below eaves 300mm
D Below balconies or a car port roof* 300mm
E From vertical drain pipes or soil pipes 75mm
F From internal or external corners 300mm
G Above adjacent ground, roof or balcony level 300mm
H From a surface facing the terminal 1500mm
I From a terminal facing the terminal 1200mm
K Vertically from a terminal on the same wall 1500mm
L Horizontally from a terminal on the wall 300mm
M Adjacent to opening 300mm
N Above intersection with roof 500mm
O For a vertical structure on the roof
500mm
Table 8
Installations in car ports are not recommended.
8 716 473 216-20.1O
Flue terminal positions
for boilers in accordance
with AS5601
A
F
M
G
M
B,C
F
B,C
K
G
C
L
A
N
N
O
E
J
K
D
F
K
G
G
G
H, I
K
L