ENG
18
Wall-Mounted Automatic
Voltage Regulator
5. APPLICATION
Automatic voltage regulator (AVR) is designed for providing various equipment with high-quality
stable electric power supply in conditions of signi
fi
cant and continuous deviations of mains voltage
and protecting your equipment against high-voltage impulses and overheating. It has wall mount
holes.
6. INSTALLATION
Attention! Before connecting the regulator, make sure that all consuming devices connec-
ted to it are off.
•
Before installing the AVR, please make sure that total power of all voltage consumers is lower
than AVR power. Besides, taking into account the starting load and power factor of consumers, it is
necessary to apply power margin factor of 1.2–1.5; for such equipment as air conditioners, fridges,
etc., it should be 1.5–2.
Attention! When choosing an AVR, it is necessary to know that reduction of input voltage
increases value of input current, which means that maximum power of AVR is reduced too!
Such dependence is shown in the graph below:
Note. Adhere strictly to such dependence. If the condition stated above is not adhered to,
warranty servicing becomes void!
•
Voltage consumer-devices should be connected when the AVR is o
ff
. Open the terminal box
i
and with the help of relevent cables (not included) connect the appropriate load to the AVR
terminals
k
, after that connect the AVR to the 220 V household mains according to the diagram
l
in Fig. 4.
Keep in mind! PRO LCD AVRs should be connected by specialists-electricians only.
•
Switch on the AVR with ON/OFF switch
g
. Switch on connected voltage consumer-devices
after that only.
•
If the AVR operates properly, the green “Mains” LED
b
illuminates, the LED
a
will display the
voltage at the output of the AVR, i.e. the output voltage.
•
When the mains voltage exceeds the allowable rate (lower threshold is 133 V, upper threshold is
268 V) the LED
d
illuminates, the AVR disconnects the load automatically and the LED
a
displays
“L” or “H” .
140 150 160 170 180 187 200 210 220 230 240 250 260 270
0
50
75
100
100 110 120 130
Output power, %
Input
voltage, V
