CaptiveAire EWC - Wire Ampacity Rating; Distance Limitations; Fire Alarm Contacts

49
Wire Ampacity Rating
The load current rating and the over-current protection for conductor types shall not exceed 15 amperes
for 14 AWG, 20 amperes for 12 AWG, and 30 amperes for 10 AWG aluminum and copper-clad aluminum
after any correction factors for ambient temperature and number of conductors have been applied.
Distance Limitations
Wiring connections to remote fire protection system(s) must use shielded twisted pair wire. The maximum
length of this connection is 1000 feet.
Wire size is an important consideration when making the connections between the fire protection system
control package and a gas valve. Refer to Table 16 for maximum wiring distance between the system and
remote gas valve.
Fire Alarm Contacts
The fire protection system is equipped with normally open contacts that can be connected to the premise
Fire Alarm Control Panel (FACP) (terminals AL1 and AL2). During a fire condition, the contacts will close
and trigger the premise FACP to initiate a general fire alarm.
Figure 42 - Fire Alarm Reference
Table 15 - Copper Wire Ampacity @ 75°C
Wire Size AWG Maximum Amps
14 15
12 20
10 30
8 50
6 65
4 85
Table 16 - Wiring Maximum Distance
Wire Gauge Distance (Feet)
12 1049
14 660
16 414
18 260
20 164
22 103
24 64
1
2
3
4
AL2
AL1
1. Building Fire Alarm
2. Control Panel Fire Alarm Contact
3. End of Line Device
4. Alarm Input