Condair GS 120 OC, Installation, Commissioning And Service Instructions

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Removal and installation of the gas pressure regulating valve
1. Take the humidifier out of operation, as described in chapter 7.4.
2. Undo the brackets and open the right side panel(s).
3. Disconnect electrical wiring to the gas pressure regulating valve and the pressure switch (note the
connection layout).
4. Undo the coupling of the corresponding flexible gas pipe and disconnect the gas pipe.
5. Undo the two screws of the venturi manifold and lift up the manifold together with the gas pres­
sure re gulat ing valve.
6. Undo the four screws and remove the gas pipe connection of the gas pressure regulating valve.
7. Pull off the hose connected to the pressure switch (note the connection layout).
Then, undo the
three screws of the pressure switch support and remove pressure switch assembly from the gas
regulating valve.
8. Undo the three screws fixing the gas pressure regulating valve to the venturi manifold then, remove
the gas pressure regulating valve from the venturi manifold.
Reinstallation is achieved by following the reverse sequence. Replace defective seals with new ones.
Make sure that all seals are inserted correctly and all cables are connected correctly.
Caution – Danger of explosion! Following maintenance work on the gas system, a leakage
test must always be undertaken in accordance with chapter 5.5.2 .