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TotalAlert Infinity™ NFPA Medical Gas Notification System
CAUTION: 2.3.4 Power Supply
A power supply assembly is provided with
Do not connect TotalAlert Infinity™ master/ the alarm panel. The installer must use
combination alarm to switch/relay contacts 18AWG copper supply wiring minimum
connected to any alarm panels other than with an insulation of not less than 1/32 inch
those listed below:
(0.8mm) thick. Power supply shall be con-
• TotalAlert Infinity™ nected to a building installed circuit breaker.
• TotalAlert2 Circuit breaker shall be a maximum of 15
• MEGA3 amps and marked as disconnecting means for
• MEGA2 the alarm panel. It is recommended that the
• MEGA circuit breaker be in close proximity to the
• Relay outputs alarm panel and properly selected according
Two conductors are required for each signal to local and national regulations.
between relay output terminals and remote Holes are provided in the top and bottom of
device (such as a building automation sys- the rough-in box for main power (Figure 22).
tem). Refer to the wiring requirements of the Wiring is to be installed under the provisions
connecting device when selecting the ap- of the National Electric Code, NFPA 70.
propriate type of conductors to use (i.e. wire If power is entering from the top, it must be
gauge, twisted or not, shielded or not.) routed under the cable raceway.
Refer to NFPA Master/Combination Wiring NO OTHER HOLES SHOULD BE PUNCHED
Diagram (Section 3.1/3.3) for B4X, B50, B65 OR USED.
signal boards.
Several additional holes or knockouts are pro-
• Digital display module “mirroring” vided on the top panel and bottom for en-
Two panels may be connected together so trance of low voltage field wiring (Figure 22).
digital display module pressure reading(s)
of first panel will be duplicated at second Contractor to install
UL rated strain relief or
panel. conduit connector
An eight conductor category 5 CROSS OVER
cable is required for connecting alarm panels
directly to each other. Otherwise, standard
cabling can be used with a facility’s Ethernet
hub or switch to set up a connection be-
tween panels. Cable Raceway
• Ethernet
Power Supply
For each alarm panel to be networked, an Wire Entrance
eight conductor category 5 network cable is for power cable
required between each alarm panel and a (alternate)
facility’s Ethernet hub or switch.
Figure 22: Wire Routing
4107 9016 58.02 2-4