5-7.2 Multiple Cylinder System - Kidde Fire Systems ECS Manual

Maintenance
5-7.2 Multiple Cylinder System
Remove all control heads from the HFC-227ea cylinders.
WARNING
1. Remove the supervisory pressure switches (where installed) by disconnecting the electrical
connection at the switch, then remove the wire lead protection or conduit. Unscrew the
switch from the cylinder valve and install the protection cap on the switch connection port.
2. Disconnect the swivel nut on the pressure operated control heads from the cylinder valve
actuation port. Remove the control heads from all HFC-227ea cylinder valves, leaving the
flexible actuation hose or tubing attached to the pressure operated control heads.
3. Immediately install a protection cap on all HFC-227ea cylinder valve actuation ports.
4. Remove the tubing from the master cylinder adapter on the master cylinder (if used).
To prevent injury in the event of discharge, the master cylinder adapter cap
must be installed on the adapter whenever tubing is not connected to the
master cylinder valve. Under no circumstances is the protection cap to be
WARNING
removed from its chain.
5. Immediately install the protection cap on the master cylinder adapter port.
6. Loosen swivel nut and remove flexible discharge hose from discharge outlet port.
To prevent injury, all cylinders must have safety caps installed immediately on
the outlet ports when discharge hoses or the valve outlet adapter is
WARNING
disconnected.
7. Immediately install the safety cap on the cylinder valve outlet port.
8. Remove the attaching hardware or cylinder straps. Remove the HFC-227ea cylinder from
the bracket. Weigh the cylinders using a platform scale.
October 2014 5-14 06-236115-001