Honeywell Silent Knight 6820EVS - Board Assembly Diagram; Calculating Current Draw and Standby Battery; 1: Current Draw Worksheet Requirements

20 6820 / 6820EVS Manual P/N LS10144-001SK-E:C 09/28/2017
3.6 Board Assembly Diagram
Figure 3.2 Model 6820/EVS Assembly
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. You will use
the Current Draw Worksheet to determine current draw and standby battery requirements. Use
Table 3.2 if installing SK
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
Worksheet on
Line A.
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.
AC Power
Input
Battery
Connection
SLC
SLC
PGM
Phone Lines
EXT. COMM
SBUS
In/Out
Trouble
Relay
Relays
NAC
Flexput
Circuits