Generac Power Systems GTS "W" Owner's Manual page 16

Figure 3.9 — Remote Auto Control
3.15.4 MANUAL BYPASS FOR RETURN TO
NORMAL
The Manual Bypass for Return to Normal option
includes a door mounted toggle switch and associated
wiring (Figure 3.10).
This option will override the Return to Utility timer on
the GTS Controller PCB. When the toggle switch is acti-
vated (pushed down), and the Return to Utility timer is
active, the remaining time on the timer will be cleared.
Once the timer is cleared the GTS mechanism will
transfer and the LOAD will be connected to the UTILITY
source.
If the toggle switch is not activated, the Return to Utility
timer will function as normal. The retransfer of the GTS
will be delayed until it times out.
Figure 3.10 — Manual Bypass for Return to
14 Generac ® Power Systems, Inc.
Section 3 — Operation
Generac GTS "W" Type Transfer Switch
Normal
3.15.5 PREFERRED SOURCE SELECTOR SWITCH
The Preferred Source Selector Switch option includes a
door mounted rotary 2-position selector switch, cus-
tomer connection terminal strip and associated wiring
(Figure 3.9).
This option is normally used when there is not a
UTILITY supply present and both sources are a genera-
tor. It may be used when it is desirable for either source
of power to serve as the preferred source. The other
power source then becomes the backup source. The
switch is manually operated
When the rotary switch is in position Source #1 the
GTS will perform as a normal system. Generator #1
will be the primary source and generator #2 will be the
backup source.
When the rotary switch is in position #2, the GTS will
signal generator #2 to start and the GTS will transfer
the LOAD to generator #2. If Source #2 fails, Source #1
will be signaled to start. The GTS mechanism will trans-
fer the LOAD to Source #1. When Source #2 returns to
service, the GTS will transfer the LOAD to Source #2.
Reference wiring diagram No. 0D8035 (page 33) for fur-
ther details. The customer connections are made on
TS2. The associated wire numbers are 178, 183, 253
and 254.
3.15.6 MANUAL 3-POSITION SELECTOR SWITCH
(NORMAL-AUTO-STANDBY)
The Manual 3-Position Selector Switch option includes
a door mounted rotary 3-position selector switch and
associated wiring (Figure 3.11).
Under certain conditions it may be desirable to manu-
ally select the active power source. This can be done by
means of the door mounted selector switch. The
Normal - Auto - Standby, 3-position selector switch pro-
vides the following:
1. When the switch is set to the Normal position, the
Load will be connected to the Normal source and
any other transfer will be inhibited.
2. When the switch is set to the Auto position, the ATS
will function as normal. See the Sequence of
Operation section 3.13, page 11.
3. When the switch is set to the Standby position, the
Load will be connected to the Emergency source
and any other transfer will be inhibited.
Reference the wiring diagram No. 0D8035 for further
details.