Filter
Top Products
INSTALLATION (continued)
1-- 4
observe these lights
Figure 1–5. Standard controls and indicators.
2–VoltageChecks
First check nameplate on transfer switch; ra ted voltage
mustbethesameasnormalandemergencylinevoltages.
Verify that the feeders ha ve been
connected to the proper lugs.
Useextremecautionwhenusingameter
to measure voltages in t he following
steps. Do no t t ouch power t ermi nals;
sh oc k , burns , or de at h could resu lt !
Perform steps 1 through 6 at the right. Observe the
status lights. See Figure 1–5.
O Black circle means light is on.
P White c ircle means light is off.
* If n ecessary, adjust v oltage regulator o n the generator
according to the manufacturer’s recommendations. The
Automatic Transfer Switch will respond only to the rated
voltage specified on the Transfer Switch nameplate.
Also see page 4–1 for the HI–LOW voltage adjust
setting in the controller. The LOW setting shifts all
voltage settings down 4. 2%; for example, 240 V to 230 V.
1
Close the normal source circuit
breaker. The Normal Transfer
Switch Position and the Normal
Source Accepted lights should
come on.
Source Accepted
Normal
Emergency
2
Use an accurate voltmeter to
check phase to phase and
phase to neutral voltages pres-
entatthetransferswitchnormal
source terminals.
3
Close the emergency source
circuit breaker. (Start generator,
if necessary.) The Emergency
Source Accepted light should
come on.
Source Accepted
Normal
Emergency
4
Use an accurate voltmeter to
check phase to phase and
phase to neutral voltages pres-
ent a t the transfer switch emer-
gency source terminals.*
5
Useaphaserotationmeterto
check phase rotation of emer-
gency source; it must be the
same
as the normal source.
A
B
C
6
Shut down the engine–genera-
tor, if applicable. The Emergen-
cy Source Accepted light should
go off. Then put the starting
control selector switch (on the
generator set) in the automatic
position. Close e nclosure door.
Source Accepted
Normal
Emergency
Now continue to 3 – Electrical Operation on next page.