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TotalAlert Infinity™ NFPA Medical Gas Notification System



            5.2 Retrofit of TotalAlert Area Alarm
                                            2
            Panel (4-gas, 8-gas) and MEGA2
            Alarms                                                   Additional

                                                                     I/O Module  Power
             NOTE: The existing Digital Gas Sensors will                         Supply
             be reused for the new alarm.

            5.2.1 Remove Components from
            Existing Alarm
                                                                                                Mounting
            1.  Open old alarm panel to be retrofitted                                          Bracket
               and ensure that the retrofit kit to be in-
               stalled is correct according to the number
               of Signal Inputs, Relay outputs, and/or              Figure 212: Power Supply, Module Mounting
               Gas Sensor signals (See Appendix A).              TA2/Mega2 Area 8 Gas
            2.  Ensure that you have the additional trim           a.  Install the 2 position metal standoff
               kit if retrofitting a TA2/MEGA2, 8-Gas                  bracket that is included with the addi-
               alarm (4107220615).                                     tional trim kit onto the studs the power
            3.  Test Master alarm signals to validate wir-             supply was removed from (Figure 213).
               ing and document all signal wires coming            b.  Mount the new Power Supply (B05)
               into the box with alarm type and loca-                  and the B60 gas input board to the
               tions prior to disconnecting the front                  bracket using the nuts provided with
               panel. This information will be required to             the modules.
               setup the new alarm.
            4.  Turn off the supply power to the alarm.


             CAUTION: Verify that power has been
             turned off prior to working on the alarm.
            5.  Remove and discard the front panel from
               the existing alarm.                                Power
            6.  Remove the old power supply                       Supply
            5.2.2 Install New Power Supply

            Mega Master / Area 4 Gas

              a.  Install the metal standoff bracket that                B60              Mounting
                                                                                          Bracket
                  is included with the retrofit kit onto the          Module
                  studs the power supply was removed                Figure 213: Power Supply, Module Mounting
                  from.
              b.  Mount the new Power Supply (B05)
                  to the bracket using the nuts provided
                  (Figure 212).










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