Fire-Lite Alarms Fire Alarm Control Panel MS-10UD-3

Replace the liquid end diaphragm

Cleaning the Diaphragm Rupture Indicator

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

Clean the diaphragm rupture indicator with suitable liquid, preferably water

Testing the Diaphragm Rupture Indicator

Fully immerse the tapered section at the front in water

Does the continuous display indicate a diaphragm rupture?

Warning of faulty operation acknowledged

Refer to the exploded drawings in the appendix

Ensure all cleaning tools are available

Remove any visible debris from the valve

Is the valve free from visible dirt and debris?

Refer to the exploded drawings to verify assembly

Ensure all spare parts are available

Install the new vPTFE diaphragm

Valve and Connector Installation

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

Disconnect the pump from the mains power supply.

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

Inspection of Hydraulic Components

Check that the following components are fixed firmly to the liquid end

Check that the following valves are fitted tightly

Check that the entire liquid end is leak-tight, particularly around the leakage hole.

Check the discharge and bypass line for kinks.

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

Turn the liquid end upside down and allow the feed chemical to run out

Flush out with a suitable medium