XR150/XR550 Series Canadian Installation Guide
Digital Monitoring Products
13
INSTALLATION
6.9
Standby Battery Selection
To choose the type and number of batteries needed for 24, 60, or 72 hours of standby power based on the Amp Hours
Required calculation from section 6.8 XR150/XR550 Series Power Requirements, perform the following:
1. Select the desired standby hours required from the table below: 24, 60, or 72 hours.
2. Select the desired battery size: Model 368 (12VDC 5.0 Ah), Model 369 (12VDC 7 Ah), Model 365 (12VDC 9 Ah),
Model 366 (12VDC 18 Ah).
3. Select a Max. Ah Available number that is just greater than the number calculated in Amp Hours Required.
4. Install the number of batteries shown in the corresponding No. of Batteries required column.
Example
: If the Amp Hours Required calculation equals 22 Ah for 24 hours of standby time and 4.5 Ah
batteries are desired, install six (6) Model 368 (12VDC, 5.0 Ah) batteries.
Note
: You can use either a Model 327CAN Plug-in 50 VA or ATC Frost FTA7516 75VA Transformer with any of the
Number of Batteries choices listed below.
24 hours of standby power
5.0 Ah Batteries
7 Ah Batteries
7.7 Ah Batteries
9 Ah Batteries
18 Ah Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
8
2
6
1
6
1
8
1
16
1
12
3
12
2
13
2
16
2
32
2
16
4
18
3
20
3
24
3
48
3
20
5
24
4
27
4
32
4
24
6
31
5
34
5
40
5
28
7
37
6
41
6
32
8
43
7
36
9
Note
: 48 hours is the typical battery recharge time for any of the Number of Batteries
shown in this section.
40
10
60 hours of standby power
7 Ah Batteries
7.7 Ah Batteries
9 Ah Batteries
18 Ah Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
13
2
14
2
17
2
17
1
20
3
22
3
26
3
34
2
27
4
29
4
34
4
52
3
33
5
37
5
43
5
69
4
40
6
44
6
52
6
47
7
52
7
61
7
Note
: 48 hours is the typical battery
recharge time for any of the Number of
Batteries shown in this section.
54
8
59
8
69
8
60
9
67
9
67
10
72 hours of standby power
9 Ah Batteries
18 Ah Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
16
2
16
1
25
3
33
2
33
4
50
3
42
5
67
4
50
6
59
7
Note
: 72 hours is the typical battery recharge time required for any of the Number of
Batteries shown in this section.
67
8
Note
: If the Amp Hours Required calculation is greater than any Max. Ah Available number shown on a table, then
add power supply(s) to power some system devices allowing the Amp Hours Required calculation to be reduced. See
the 710 Bus Splitter/Repeater Installation Guide (LT-0310).
