Fire-Lite Alarms Fire Alarm Control Panel MS-5UD-7

Replace the liquid end diaphragm

Unscrew the diaphragm rupture indicator using an AF 14 open-ended spanner

Clean the diaphragm rupture indicator with suitable liquid, preferably water

Test the diaphragm rupture indicator by immersing the tapered section in water

Does the continuous display indicate a diaphragm rupture?

Thoroughly dry the diaphragm rupture indicator

Warning of faulty operation acknowledged

Refer to the exploded drawings in the appendix

Ensure all cleaning tools are available

Turn off the valve before cleaning

Refer to the ‘Service’ menu for spare parts kit order number

Enter the order no. (part number) of the diaphragm or spare parts kit

Take protective measures, if necessary

Note the material safety data sheet for the feed chemical

Prevent the escape of feed chemical

Ensure that the system is at atmospheric pressure

Empty the liquid end by turning it upside down and allowing the feed chemical to run out

Flush out with a suitable medium

Read the safety information and specifications in the 'Storage, Transport and Unpacking' chapter.

Disconnect the pump from the mains power supply and ensure it cannot be switched on by unauthorized persons.

Ensure the system is at atmospheric pressure before commencing work on hydraulic parts.

Inspection of Hydraulic Components

Check that all hydraulic lines and components are secure and leak-tight.

Is the flow correct after pressing [Priming]?

Electrical and Structural Integrity Check

Check that the electrical connectors are intact.

Read the safety information and specifications in the 'Storage, Transport and Unpacking' chapter

Disconnect the pump from the mains power supply

Ensure the pump cannot be switched on again by unauthorized persons

Ensure the system is at atmospheric pressure before commencing work

Use the correct spare parts kits

Check the metering diaphragm more frequently if using feed chemicals with abrasive additives