Amico Dome Loaded Manifold CSA - Manual (Page 27)

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If necessary, the line regulator replacement can be performed while manifold is in service. However, this should only
be done by qualified technicians experienced in servicing medical equipment.
1. Close the two ball valves on inlet and outlet of line regulator to be replaced.
2. Loosen union nuts on the two closed isolation valves.
3. Vent pressure from the bank, which was shut off in step 2 by depressing the bleed valve on side of the regulator.
4. Ensure the orientation of fittings (direction of gas flow) is the same on the replacement regulator. Install fittings on
new regulator.
5. Inspect O-ring removed from the ball valve union. If damaged, replace O-ring.
6. Verify the correct orientation of fittings on the regulator as some slight adjustment may be required to align
with the ball valves without causing stress to the fittings.
7. Hand-tighten the two ball valve union nuts and then with a wrench, snug lightly to ensure the fittings are secure.
NOTE: Do not over tighten unions, as it is an o-ring seal.
8. Open the ball valves and set the line regulator’s output pressure as described in Line Regulator Pressure Adjustment
procedure.
Line Regulator Replacement