Dungs AA-A1-3-3 Installation Instructions - Page 4
Browse online or download pdf Installation Instructions for Switch Dungs AA-A1-3-3. Dungs AA-A1-3-3 5 pages. Differential air pressure switch
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Installation Position
Standard installation position is vertical upright diaphragm.
When installed horizontally, the pressure switch switches at a pressure higher by approx. 0.2 in. W.C. When installed
upside down, the pressure switch switches at a pressure lower by approx. 0.2 in. W.C. When installed in other positions,
the pressure switch switches at pressure deviating from the set reference value by max. ± 0.2 in. W.C.
Refer to Label!
Wiring
• If applicable, remove the clear cover
from the switch.
• Use 14 or 16 AWG wire rated for at
least 75 °C.
• Connect the wiring to the appropriate
1/4 x 1/32" (6.3 x 0.8 mm) flat male
terminals.
2
NO
+
–
3
–
COM
COM
3 (P)
p
Medium Pressure
horizontally
installed free of vibration!
All wiring must comply with
local electrical codes, ordi-
nances and regulations.
Do not exceed the switch
ratings given in the specifi-
cations and on the switch.
1
NC
–
NO
3
–
COM
2
COM
3 (P)
P
Flat-type connector
A 6,3 x 0,8 mm
DIN 46 244
2
NO
1
NC
AA-A1-...
in W.C.
↓
air only 1.5 psi max.
upside
vertical
down
Ensure that the
pressure switch is
2
1
NO
NC
+
NO
COM
2
3 (P)
P
COM
NO
NC
3 (P)
2
1
α
α
1
2
NC
NO
+
–
3
–
COM
AA-A1... switching function
As pressure rises:
1 NC opens, 2 NO closes
As pressure falls:
1 NC closes, 2 NO opens
4 ... 5