Preventive maintenance 
EST3 Installation and Service Manual  7.3 
Preventive maintenance schedule 
 
Preventive maintenance schedule 
 
Component 
Testing 
Interval 
 
Test Procedure 
Manual 
stations 
Semiannually 1. Visual inspection 
2.  Put zone in Test mode 
3. Activate mechanism 
4.  Verify proper IDC zone response 
Non-restorable 
heat detectors 
Semiannually 1. Visual inspection 
2.  Put zone in Test mode 
3.  Test mechanically and/or electrically 
4.  Verify proper IDC zone response 
Restorable 
heat detectors 
Semiannually 1. Visual Inspection 
2.  Put zone in Test mode 
3.  Activate at least one detector on each IDC. All detectors on 
each IDC must be tested within five years. 
Smoke 
detectors 
Annually 1. Visual inspection 
2.  Put zone in test mode 
3.  Conduct a Functional test to verify proper IDC zone 
response 
4. Check sensitivity 
5.  Clean as required 
Waterflow 
switches 
Every two 
months 
1.  Put zone in Test mode 
2.  Activate sprinkler test valve. Refer to Sprinkler system test 
procedure. 
All initiating 
device circuits 
 
Annually  1.  Enter Test mode 
2.  Activate IDC zone. Appropriate NACs should activate and 
zone information should be annunciated. 
3.  Restore device and reset zone 
4.  Open the IDC field wiring. Trouble should be annunciated. 
5.  Reset and lock panel at conclusion of all testing 
Remote 
annunciators 
Annually  1.  Verify all indicators operating properly. 
Notification 
appliances 
Annually 1. Visual Inspection 
2.  Put panel in Alarm, Drill, or Test mode. Verify that all 
indicating appliances are operating properly