1.AFE, MINI, AND OCTO SHUT DOWN PROCEDURES
A.Controlled system shutdowns are conducted for either maintenance (scheduled or repair) or long term seasonal reasons. If the shutdown is for short term maintenance then it may be possible to shorten this full procedure.
B.The following procedures are the recommended method to manually terminate AIRFOG operations for long periods of time. Typically this would be after the heating season (winter) is over.
(1)Turn off the water supply valve on the primary water pressure control section
(2)Allow 10 minutes of operation to extract as much of the water as possible from the water pipes.
(3)Open the clean out valves on the water supply lines to permit the AFE system to drain the remaining water from the pipe and drain the system of water. A bucket should be used to collect any water that may exit the pipe at the clean out valve.
(4)Disconnect the 24 VAC transformer from the 110 VAC supply.
(5)Turn off the air supply valve on the primary air pressure control system.
(6)Turn the system off at the control panel.
(7)Turn the air compressor off.
C.For long periods (weeks or longer) of system down time, it is recommended that high pressure air is used to blow all water out of the system.
D.It is important to NOT undertake disconnection and removal of components when they are connected to or are part of the delivery system of either air or water under pressure. Turning the master switch off in the control panel will isolate all high pressure water system components downstream of the vacuum valve (AFE systems). This control panel switch will also isolate all high pressure air system components downstream of the pilot air regulator. This is often all that is required.
E.If there is any doubt about whether a component, pipe or tube is under pressure, then turn off the main switch in the control panel, turn off the water pressure at the main water pressure control section and turn off the air pressure at the primary air pressure control section. Bleed off the remaining pressures prior to disconnection of any plumbing interface fittings.
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