SAMLEX AMERICA INC. | 25
5.1.3 Stand-alone inverter mode
In this mode, the unit is used just as a stand-alone inverter. The unit is fed with 12V bat-
tery power on the DC input side. The AC input cord is NoT connected to Grid AC outlet.
The position of the Charger ON/OFF switch “CHARGER” (2, Fig 3.1) does not matter
The unit operates as follows:
• As there is no AC input from the Grid, the Charger Section will be in OFF condi
-
tion. Green LED “CHARGER” (7, Fig 3.1) will be OFF
• Switch ON the Inverter Section by switching ON the Inverter ON/OFF Switch
“INVERTER” (3, Fig 3.1) to ON position. Green LED “INVERTER” (8, Fig 3.1) will be
oN. 115V, 1500W power will be available at the AC outlets
• Transfer Relay K1 will be energized, its Normally Open(NO) will close and will con
-
nect the Line Sockets of the AC outlets to the Line conductor of the Inverter output
• Ground Switching Relay K2 will also be energised, its Normally Opened (NO)
contacts will close and the Grounding Sockets of the two AC outlets will get con-
nected to the internal GfCI circuitry
5.2 SizinG cHart for typicaL LoaDS tHat reQuire HiGH
StartinG SurGe
Certain types of AC loads described in Table 5.1 below will require higher starting surge
power as compared to their running power.
The manufacturers’ specifications for power rating of appliances and devices indicate
only the running Power required. The Surge Power required by some specific types of
devices as explained above has to be determined by actual testing or by checking with
the manufacturer. This may not be possible in all cases and hence, can be guessed at
best, based on some general rules of Thumb.
Table 5.1 lists some common loads that require high surge power on start up. A “Sizing
factor” has been recommended against each which is a Multiplication factor to be
applied to the rated running Watt rating of the load to arrive at the Continuous Power
rating of the inverter
(multiply the running Watts of the device/ appliance by the Siz-
ing factor to arrive at the size of the inverter)
.
table 5.1 inverter Sizing factor
type of Device or appliance
inverter Sizing factor
1
Air Conditioner / Refrigerator / Freezer (Compressor based)
5
Air Compressor
4
Sump Pump / Well Pump / Submersible Pump
3
Dishwasher / Clothes Washer
3
Microwave (where rated output power is the cooking power)
2
Furnace Fan
3
Industrial Motor
3
SeCTIOn 5 |
Operation
Summary of Contents for SAM Series
Page 39: ...SAMLEX AMERICA INC 39 nOTeS ...
