Board Assembly Diagram; Calculating Current Draw And Standby Battery; 1: Current Draw Worksheet Requirements - Honeywell Silent Knight SK318PT Installation And Operation Manual

3.6 Board Assembly Diagram

AC Power
Input
Battery
Connection
Figure 3.2 shows the circuit boards and annunciator. If you should need to remove the control board for repair, do so by removing the
nuts that hold the heat sink bracket to into the cabinet. Then lift the control board out of the cabinet.

3.7 Calculating Current Draw and Standby Battery

This section is for helping you determine the current draw and standby battery needs if you are using SK addressable devices (Table 3.2)
or SD addressable devices (Table 3.3).
3.7.1 Current Draw Worksheet Requirements
1. The following steps must be taken when determining 6820/6820EVS current draw and standby battery requirements.
the Current Draw Worksheet to determine current draw and standby battery requirements. Use
SLC Devices and Table 3.3 if installing SD SLC Devices. For the 6820 / 6820EVS, the worst case current draw is listed for the
panel, addressable devices, and all SBUS expanders. Fill in the number of addressable devices and expanders that will be used in
the system and compute the current draw requirements for alarm and standby. Record this information in the Current Draw
Line A.
Worksheet on
2. Add up the current draw for all auxiliary devices and record in the table on Line B.
3. Add up the current draw for all notification appliances and record in the table on Line C.
20
SLC
SLC
PGM
Figure 3.2 Model 6820/EVS Assembly
Phone Lines
6820 / 6820EVS Manual P/N LS10144-001SK-E:C 09/28/2017
NAC
Circuits
Flexput
Relays
Trouble
Relay
SBUS
In/Out
EXT. COMM
You will use
Table 3.2 if installing SK