5-6
MEGA3 NFPA Medical Gas Notification System
4107 9016 59.03
6. Install the gas specific transducer.
7. Tighten the DISS nut until you feel resis-
tance.
8. Repeat steps 3-7 until all of the gas spe-
cific transducers are installed.
9. Verify that the gas specific transducers are
in the appropriate places by referring to
your records from the disassembly.
10. Return pressure to each gas sensor, one
gas at a time and check for leaks. Make
any adjustments or corrections as needed.
NOTE: If the DISS demand check thread size
is not compatible with the existing tubing
connection; use the included fitting kits to
adapt as needed. Fitting/adapter kit needs
to be installed upstream from the DISS con-
nection at the gas sensor.
CAUTION: Ensure that the pressure on the
pipeline in the alarm area has been released
before removing any components from the
pipeline connection.
3. Remove any existing fittings or adapters
from the gas tube.
4. Install the gas specific DISS demand check
valve from the supplied tubing package
into the appropriate tube. To prevent
gas leaks, wrap Teflon tape a minimum
of three times around the fitting pipe
threads.
5. Tighten the adapter until you feel resis-
tance; then turn the fitting 2 full turns.
NOTE: Remote sensors can also be in-
stalled in compatible BeaconMedæs Zone
Valve boxes with additional adapter kit
(4107401625). One required for each sensor.
5.2.3 Install New Power Supply
1. Mount the new Power Supply (B05) to the
adapter bracket using the nuts provided
(Figures 126 - 129).
2. Locate the Ground cable attached to the
power supply and connect the ring ter-
minal end to the rough-in box for chassis
ground. Use the self-drilling screw pro-
vided.
3. Remove the 4 corner screws from the
Power Supply cover and remove the cover.
4. Connect the supply power Line and Neu-
tral wires to the terminal block.
5. Connect the supply power Ground wire to
the rough-in box.
6. Replace the power supply cover and
screws.
Figure 128: MEGA3
Single Module Positions
I/O Modules
Power
Supply
Figure 129: Double Module Positions
I/O Modules
Power
Supply
To Next Page
Loading...
