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TotalAlert Infinity™ NFPA Medical Gas Notification System
2.3.5 B60 Gas Input Board
NOTE:
All wiring shall be protected from physical damage An Area alarm has 8 Gas Inputs. Signals are
by raceways or conduit in accordance with NFPA 70,
National Electric Code. numbered D01 thru D08. There is a single
relay output for general gas fault notification.
Alarm panels require 100 to 250 VAC 1. Identify each pair of twisted gas sensor
50/60 Hz 250mA power. NFPA Area Wiring wires inside the alarm rough-in box (Fig-
Diagram (Section 3.2) ure 24).
For NFPA 99 compliance, alarm panel must 2. Route each pair of sensor wires as shown
be connected to life safety branch of the (Figure 25) to appropriate terminals.
emergency electrical system. 3. Connect each pair of sensor wires to
1. Remove four screws from plastic power terminal blocks noting the correct polar-
supply shield. ity Red(+), Black (-). NFPA Area Wiring
Diagram (Section 3.2)
2. Remove plastic shield from power supply.
3. Connect incoming line and neutral wires NOTE:
to the terminal block. Ground wire con- If gas sensor wires are landed on the terminal blocks
nects directly to the rough-in box (chassis) in the same order as defined by the model number
at the green screw below the power sup- of the alarm panel, then initial setup will be easier
ply (Figure 23). and gas sensor channels will not need to be recon-
figured.” Example T3-A10-OAV means “O” Oxygen
4. DO NOT remove or alter the Green factory is defaulted to D01, “A” Medical Air is defaulted to
installed ground wire from the terminal D02, etc. See section 1.6.
block to chassis.
Holes provided for
5. Reinstall plastic power supply shield while entrance of remote
making sure all high voltage wires are con- wiring
tained within plastic shield.
6. Secure plastic shield with four screws.
Line Voltage
Neutral
Ground
Figure 23: Supply Power Wiring
WARNING:
RISK OF ELECTRICK SHOCK
Disconnect power at the circuit breaker Figure 24: Remote Sensor Wire Routing
before removing power supply shield.
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