Danfoss DWH 200 Instalación/Mantenimiento página 9

Discharge pipe arrangement
B
The tundish must be positioned away from any electrical devices.
D
The tundish must be installed so that it is visible to the occupants.
1
2
500mm max
300mm min
Figure 6. The principal installation solution of the discharge pipe assembly.
Position Name
1 Safety device (for example, temperature relief valve)
2 Metal discharge pipe from safety device to tundish
3 Tundish
4 Metal discharge pipe from tundish, with continuous fall
5 Discharge below fixed grating
6 Trapped gully
Sizing of copper discharge pipe (4) for common temperature relief valve outlet sizes
Minimum
Valve size of
outlet discharge
size pipe (2)
G1/2 15mm
G3/4 22mm
G1 28mm
3
4
Maximum resistance allo-
Minimum size of wed, expressed as a length
discharge pipe of straight pipe (that is, no
(4 from tundish) elbows or bends)
22mm Up to 9m
28mm Up to 18m
35mm Up to 27m
28mm Up to 9m
35mm Up to 18m
42mm Up to 27m
35mm Up to 9m
42mm Up to 18m
54mm Up to 27m
VMBNB72J
5
6
Resistance created
by each elbow or
bend
0.8m
1.0m
1.4m
1.0m
1.4m
1.7m
1.4m
1.7m
2.3m
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