windy
nation
Page 10 of 16
VertaMax User Manual
Revision 3
3.3.4
Over Heating
After continuous use the inverter case temperature will rise to ~60
o
C. When the inverter exceeds
a safe operating temperature, due to insufficient ventilation or an increase in ambient
temperature, the alarm will beep two (2x) times and the FAULT LED will blink Red. If the over-
temperature condition persists, the inverter will automatically shut down.
Should this occur, place the inverter in a well ventilated, dry place, with a distance of at least 7”
(20cm) from any objects. The ambient environmental temperature should not exceed 40
o
C.
The inverter's cooling fan(s) are temperature controlled and only activate when the inverter is
approaching an unsafe operating temperature
When the temperature drops, the inverter will automatically return to normal operation.
IMPORTANT:
The cooling fan is designed to operate when the temperature increases but may
not be adequate enough to prevent overheating.
3.3.5
Short Circuit
This inverter is equipped with multiple internal fuses. When in a short circuit state, the alarm will
beep and the FAULT LED will blink Red. The inverter will automatically shut down after three (3)
seconds.
3.3.6
Functional Matrix
Operational Mode
Power
Switch
Power
Light
Fault
Light
Audible
Alarm
Unit is off
Off
Off
Off
Off
Normal Operation
On
On
Off
Off
Low input voltage, <11V
On
On
Off
On
Low input voltage, < 10.5V
On
On
On
On
Low input voltage, < 10.0V
On
Off
On
On
High Input voltage, > 15V
On
On
On
On
High Input voltage, > 16V
On
Off
On
On
Over temperature or overload
On
Off
On
On
No 12V DC input
On
Off
Off
Off
4 APPLICATION
4.1 P
OWER
C
ONSUMPTION
For each piece of equipment you will be operating from the inverter, you must determine the
battery’s reserve capacity (how long the battery can deliver a specific amount of current – in
automotive batteries, usually 25 ampere) or ampere-hour capacity (a measure of how many
amperes a battery can deliver for a specified length of time).
Example – Reserve capacity: a battery with a reserve capacity of 180 minutes can deliver 25
ampere for 180 minutes before it is completely discharged.
Example – Ampere-hour capacity: a battery with an ampere-hour capacity of 100 ampere-hours
can deliver
5 ampere for 20 hours before it is completely discharged.
To determine the battery ampere-hour capacity:
1) Determine how many watts each piece of AC equipment (TV, light bulbs, etc)
consumes. This can normally be found on the product label. If only the current draw is
given, multiply the current draw by 115 to get the watt consumption.
2) Estimate the time (in hours) that each piece of equipment will be running between
battery charging cycles.
