Samlex America STS-30 - Manual (Page 10)

10 | SAMLEX AMERICA INC.
SecTIOn 3 | Installation
teSting oF the operation (Fig 4)
read and Follow all Safety instructions beFore testing the operation
a. Switch oN the AC input power from Utility/Shore Power Cord (rV). As the time
delay has been disabled (As explained above, if the primary source is electric utility
/ shore power cord, the time delay should be disabled by changing the position of
the DIP Switch SW1 to oN position), the relay coil will energize as soon as AC input is
switched oN. The Green LeD 1 will light up indicating that the relay has energized. If
the main panel circuit breakers are switched oN, the AC loads should operate
normally. The external battery charger will start charging the batteries.
b. Switch oN the inverter. The inverter will be in standby condition.
c. Switch off the AC input power from Utility/Shore Power Cord (rV). The relay will
immediately de-energize and the AC loads will be transferred to the inverter.
Switching between utility/Shore power cord (rV)
and generator (Fig 5)
This configuration is used in rV application when it is desired to switch between the
shore power cord and the onboard generator. When the load demand in the rV is more
than the capacity of the Shore Power Cord / the breaker capacity of the rV Park / Camp
Ground, the on-board generator is required to be started. In this case, the AC loads
should transfer to the generator as soon as the generator is started and is ready to take
on the load (after a delay of around 20 to 25 sec). This configuration is also used when
utilizing back up generator to power AC loads if utility power fails and the generator is
started with Automatic Generator Start Device.
a. ensure that the Time Delay Circuit is enabled – DIP Switch SW1 (fig 2) should be in
off position.
b. Connect Utility/Shore Power Cord (rV) to the Normally Closed (NC) contacts T-5 and
T-6 of the Transfer relay. The pre-wired 15 A cord (1, fig1) and NeMA5-15 plug (2, fig
1) can be used for 15 A service (If it is required to be connected to a 30 A service, this
cord should be replaced with a 30 A cord).
c. Connect the generator cord to the Normally open (No) contacts T3 and T4 of the
Transfer relay .If convenient, use the knockout and the ¾” cable clamp provided –
marked “Shore” (4, fig 1). otherwise, use any other convenient knockout with cor-
responding cable clamp.
d. Use AWG#10/3 cable to connect the Load breaker Panel to the Common Contacts T1
and T2 of the Transfer relay. Use knockout marked "Load" or any other convenient
knockout with appropriate cable clamp (cable clamp not provided).
teSting oF the operation (Fig 5)
read and Follow all Safety instructions beFore testing the operation
a. Switch oN the AC input power from the Utility/Shore Power cord (rV). If the main
panel circuit breakers are switched oN, the AC loads should operate normally.
Disconnect AC input power.