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BOOK# 091-51
INSTRUCTION MANUAL
BATTERY SAVER VHO
POWER SUPPLY / AUTOMATIC LOAD SWITCH
MODEL #091-51-12
NOTE :
This Battery Saver is designed
for negative ground vehicles.
INPUT :120 Volts, 50/60 Hz, 8 amperes
OUTPUT: 12VDC, 40 AMPERES D.C.
3 YEAR WARRANTY
KUSSMAUL ELECTRONICS CO., INC.
170 CHERRY AVE., WEST SAYVILLE, N.Y. 11796
TEL: in NY 631-567-0314 TOLL FREE: 800-346-0857 FAX: 631-567-5826
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INTRODUCTION
The BATTERY SAVER VHO is a power supply with transfer relays. Loads connected to the
BATTERY SAVER VHO are energized from the vehicle’s battery when the A.C. battery is OFF.
As soon as A.C. power is applied, the power supply provides 12 volts D.C. and the relay transfers
the loads to the power supply. Thus there is no drain on the battery and the entire output of the
vehicle’s battery charger is available to charge the battery.
INSTALLATION
1. Mount the BATTERY SAVER VHO in a convenient location with 4 screws in the mounting holes
provided. Be certain that adequate ventilation is available and that the unit is not subject to
water damage.
2. Connect the 120 volt A.C. input power to the BATTERY SAVER VHO through the 3 wire line
cord provided.
3. The low voltage connections are made to the terminal strip use 12 gauge wire, see wiring
diagrams .
4. The installation is now complete. If done correctly, the loads should be powered from the
battery when the A.C. power is OFF and from the power supply when A.C. power is ON.
TEST
To test the installation first remove A.C. power from the vehicle. Now determine that power is being
supplied to the loads. This power should be coming through the BATTERY SAVER VHO.
Disconnect the wires to BAT 1,2 on the terminal strip and note that the loads are deenergized.
Leave the wire disconnected and apply 120 volts A.C. power to the vehicle. This should energize
the power supply and the loads. If the loads are energized, then the power supply is functioning
correctly. THE TEST IS NOW COMPLETE. Now reconnect the wires to BAT 1,2 on the terminal
strip . This is important!
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BATTERY SAVER VHO
LOAD 1
LOAD 2
1
d
n
u
o
r
G
d
2
POWER
FUSE
10 AMP
D.C AMPE RES
005510101515202025
D.C AMPE RES
25
GROUND
11
2
2
d
n
u
o
r
G
LOAD
1
2
1
+
t
a
B
2
+
t
a
B
BA T +
L
o
a
d
2
L
o
a
1
Chassis
Ground
Chassis
Ground
Accessories
+
Battery Saver Loads:
1
2
When the charger
V
o
is disconnected from
l
t
s
120 volts AC the
2
0
Battery Saver loads
A
m
automatically are
p
s
connected to vehicle
battery.
Wiring Single Battery System
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BATTERY SAVER VHO
Chassis
Ground
LOAD 1
LOAD 2
1
d
n
u
o
r
G
B
D.C AMPERES
005510101515202025
D.C AMPERES
25
GROUND
11
2
1
+
t
a
2
d
n
u
o
r
G
LOAD
1
a
B
2
2
+
t
BA T +
2
L
POWER
10 AMP
L
o
a
o
a
d
1
FUSE
d
2
+
1
2
V
o
l
t
s
2
0
A
m
p
s
+
1
2
V
o
l
t
s
2
0
A
m
p
s
Chassis
Ground
Chassis
Ground
Chassis
Ground
Accessories
Accessories
Battery Saver Loads: When the charger is
disconnected from 120 volts AC the Battery
Saver loads automatically are connected to
vehicle battery.
Wiring Dual Battery System
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INSTALLATION RECORD & WARRANTY
Date Installed
Installed By
Vehicle Identification
Vehicle Owner
WARRANTY
All product of Kussmaul Electronics Company Inc. are warranted to
be free of defects of material or workmanship. Liability is limited to repairing or replacing at our factory, without charge, any material or defects
which become apparent in normal use within 3 years from the date the
equipment was shipped.
Kussmaul Electronics Company, Inc. shall have no liability for damages of any kind to associated equipment arising from the installation and
/or use of the Kussmaul Electronics Company, Inc. products. The purchaser, by the acceptance of the equipment, assumes all liability for any
damages which may result from its installation, use or misuse, by the
purchaser, his or its employees others.
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