4.0 INSTALLATION
4-10
Cheetah Xi 50 Installation Manual
UL S2203
Rev 6, 09/2015
P/N: 06-369
FM
4.11 INSTALL BATTERIES
The Cheetah Xi 50 enclosure is capable of housing up to two (2) 18 AH batteries. Where larger or additional
battery Amp-Hours are required, a separate battery cabinet can be installed to house the batteries. The
battery cabinet must be installed in the same room as the control panel with a maximum wire length of 10 ft.
(3 m). Interconnect wiring shall be 14 AWG minimum and shall be installed in conduit.
The following general steps shall be used to install the batteries:
1. Install the batteries (2) into bottom of the enclosure and/or into the separate battery cabinet.
2. Connect the positive (+) battery cable lead from the (P1) positive battery input terminal to the positive
(+) terminal of the first battery.
3. Connect the negative (-) battery cable lead from the (P1) negative battery input terminal to the
negative (-) terminal of the second battery.
4. A jumper is supplied to provide the connection between the negative (-) terminal on the first battery to
the positive (+) terminal on the second battery.
Do NOT install this jumper at this time!
4.11.1 BATTERY CUTOFF
The Cheetah Xi 50 panel has battery cutoff feature that allows the system batteries to be automatically
disconnected from the load if the system’s operating voltage (AC/DC) drops below 19 volts. This feature
prevents the batteries from being discharged beyond their end-of-discharge terminal voltage thus preventing
potential damage to the batteries or control unit, which could result in abnormal operation of the control unit
during battery discharge period or on re-energizing by the main power supply. Upon restoration of the main
power supply, the batteries shall be automatically reconnected to the system. Refer to Appendix D for battery
cutoff wiring diagram.
P1
F1
AC
15A
F2
15A
(First)
12 VDC
BATTERY
R
ED
(
+)
B
L
A
C
K
(
-)
JUMPER
(Second)
12 VDC
BATTERY
(-)
(+)
(+)
(-)
Exhibit 4-11: Battery Connections
Summary of Contents for 10-071
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