Maintenance instructions6.6 QS4 Technical Reference ManualMaintenance tasksWhat is it you want to do This is how you do itChange the fuse 1. Switch the circuit breaker that supplies ac power to thecontrol panel to the OFF position.2. Expose the ac terminal block and pull out the fuse holder.3. Replace the blown fuse with a new one of the same typeand size.4. Plug the fuse holder back into the ac terminal block.5. Switch the circuit breaker that supplies ac power to thecontrol panel to the ON position.Replacing a SIGA device whenmapping is disabled) WARNING: Replacing a device when mapping is disabledleaves the area unprotected. The control panel does notautomatically reassign responses to replaced devices whenmapping is disabled.To replace devices on a loop that operates with mappingdisabled, you must first enable mapping then accept the map.After you replace your devices, you can disable mapping on theloop.Note: Replacement devices must be the same model as thedevices being replaced.1. Press Menu.2. Log onto the panel as a Level 4 operator.3. Choose Enable > Loop Mapping.4. Enter the card number of the SLIC that connects to thedevice you want to replace.Wait until mapping finishes before continuing.5. Choose Cards > Edit.6. Enter the card number of the SLIC that connects to thedevice you want to replace.7. Choose Accept Map.If actual and expected data for detectors and modules arethe same, press Enter.8. Choose Exit > Exit > Save and Sync.9. Replace the device.Technical Manuals Online! - http://www.tech-man.com