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Pressure Conn. & Mounting GGAO-A4
... Threaded Connection
1 Pressure connection (+) 1/4" NPT, Gas or Air
2 Pressure connection (–) 1/8" NPT, Gas or Air. May also be
used as an atmospheric vent connection.
3 Test nipple p (+) Ø 0.35" (9 mm), integrated
GGAO-A4... Mounting Procedure
• Apply good quality pipe sealant to the male threads only.
• Use 13/16" Wrench to secure the switch to the pipe.
DO NOT Exceed 177 lb-in of Torque on 1/8" Connections
DO NOT Exceed 177 lb-in of Torque on 1/4" Connections
• After installation is complete, perform a leak test.
Installation Position
α
α
Adjustment
The scale indicates the setpoint when switch is mounted in
the vertical position and increasing pressure.
3 ... 5
α
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.
α
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.
1
Made in Germany
±
0.2 in. W.C.
0.4
GGAO-A4-4
2
3