2: Class A Inputs; 3: Installing 2-Wire Smoke Detectors - Honeywell Silent Knight SK318PT Installation And Operation Manual

2. Configure the circuit through programming (see Section 9.5).
4.15.2 Class A Inputs
You can connect conventional Class A switches, such as waterflow switches and pull stations, directly to the Flexput circuits of the con-
trol panel.
To install a Class A switch:
1. Wire the Class A switch as shown in Figure 4.46.
2. Configure the circuit through programming (see Section 9.5).
NOTE: In programming any point that uses multiple Flexput circuits, the lowest Flexput circuit number is used to refer to the circuit pair. In this
example, Figure 4.46 uses both Flexput circuit 5 and 6, so in programming it would be referred to as point 5.
4.15.3 Installing 2-Wire Smoke Detectors
Any compatible UL listed two-wire smoke detector can be used with the control panel (see Appendix A for list of compatible smoke
detectors). Figure 4.47 and Figure 4.48 illustrate how to connect a UL listed 2-wire detector to the control panel.
6820 / 6820EVS Manual P/N LS10144-001SK-E:C 09/28/2017
Figure 4.45 Class B Input Switches
Maximum Impedance
per circuit is 50W
Figure 4.46 Class A initiating Switches
Supervised
power limited
UL Listed
EOL 4.7 k
Supervised
power limited
57