Calculating Current Draw And Standby Battery; 1: Current Draw Worksheet Requirements - Honeywell 6820 Manual

Before You Begin Installation
Terminal Label
B SBUS IN
A
+
-
N.C. RELAY 1
C
N.O.
N.C. RELAY 2
C
N.O.
N.C. TROUBLE
C
N.O.
S- SLC OUT
S+
S- SLC PGM
S+
S- SLC IN
S+
Ring
Tip
Ring
Tip
Ring
Tip
Ring
Tip
+ Battery
–
B EXT. Comm
A
S+
S-
P7 Data
Network
1 Regulated for NAC circuits, special application when used for releasing or auxiliary power circuits

3.5 Calculating Current Draw and Standby Battery

This section is for helping you determine the current draw and standby battery needs for your installation.
3.5.1 Current Draw Worksheet Requirements
The following steps must be taken when determining 6820 current draw and standby battery requirements.
1. For the 6820, the worst case current draw is listed for the panel, addressable devices, and SLC 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 appliance loads and record in the table on Line C.
4. For notification appliances and auxiliary devices not mentioned in the manual, refer to the device manual for the current ratings.
18
Description
Used for Class A installations
General Purpose Relay 1
General Purpose Relay 2
Trouble Relay
SLC terminals
SLC Programming
Used for Class A installations
Phone Line 1 Telco Ring
Phone Line 1 Telco Tip
Phone Line 1 Premises Ring
Phone Line 1 Premises Tip
Phone Line 2 Telco Ring
Phone Line 2 Telco Tip
Phone Line 2 Premises Ring
Phone Line 2 Premises Tip
Battery Connection
EXT. Comm
Cellular Connection
Used for SK-NIC
Table 3.1 Terminal Descriptions and Electrical Specifications
Rating
Voltage
24 VDC 2.5 A, resistive
24 VDC 2.5 A, resistive
24 VDC 2.5 A, resistive
32 VDC 150 mA
32 VDC 150 mA
N/A
N/A
24 VDC Up to 35 Ah (See Section 4.5 for
details.)
input
55 mA, 100 mA
24 VDC 21 mA
6820/EVS Manual — P/N LS10144-001SK-E:E 4/6/2022
Calculating Current Draw and Standby Battery
Current
0Ω
N/A
N/A
N/A
0Ω
0Ω
0Ω
0Ω
0Ω
N/A
0Ω
0Ω
Earth Ground
Faults