Siemens VGD4 series - Pressure Connections

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Building Technologies Operation Manual and Mounting Instructions VGD4 / VRD4 / SKPx5 CC1U7643en
14.03.2018
2.8 Pressure connections
7643z71/0318
VGD40/VRD40
VGD40/VRD40
Pressure switch connecting
plate
AGA40.40
7
6
4
3
z
7
1
/
0
4
1
8
Pilot gas connecting plate
AGA40.41
Pressure switch connecting plate (mounted on both
sides)
7643z 71/0418
VGD41
VGD41
Key
Mounting surface of the QPLx5 pressure switch
+
Pressure connection for the QPLx5 pressure
switch
Β
Note!
Remove M4 locking screws as required.
(G 1/4") (G 1/8") (G 1/4") (G 3/4") (G 1/8") (G 1/4")
Strainer
1 9 3
4
5
2
7
6
8
V1 V2
7643z72en/0718
10
Key
pi Inlet pressure
pm Pressure between valve
V1/V2
po Outlet pressure for valve V2