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All DC connections are completed in the small box just below the
engine control cabinet. In addition there are two small fuses
mounted on the top of the engine control cabinet that protect both
the engine control and all the other DC connections. See the
display on pervious page for call outs.
CONTROL PANEL LAYOUT
A - DGC-2020 Digital Gen-Set Control. See Explanation on
page 3.
B - DC Control Circuit Fuse. The 10 amp DC Circuit Fuse
protects the 12 volt circuits and engine wiring harness against
faults in wiring or control equipment. The fuse also prevents a
discharge of the battery due to a circuit fault. (Replacement AGC-
10A-250V)
C - DGC-2020 Fuse. This 3 amp DC fuse protects the DGC-2020
printed circuit board. (Replacement AGC-3A-250V)
D - Emergency Stop Switch (3)- When depressed this switch
will disconnect all the 12 volt power to the DGC-2020 shutting the
engine down. The lamp in the emergency stop switch will light up
when the switch is depressed showing that the power to the panel
has been disconnected.
E - CUSTOMER REMOTE START CONNECTION TERMINALS -
The two remote start leads from the Automatic Transfer Switch
are connected to the two terminals marked 1 & 23. The wire in
terminal labeled #1 is Battery Negative and the wire in the
terminal labeled #23 is your Remote Start lead. Closing these two
leads together will signal the DGC-2020 to go into an auto-start
mode and start up the engine generator.
Depending on the distance, 14 to 16 gauge stranded wire should
be used. It is suggested that these wires be labeled S1 and S23.
The terminal blocks are designed to use terminal lugs on all
wires and the screws should be torqued to 9.6 in. lbs.
Note: Any relay closure can be used to start and stop this
generator. As long as the contact stays closed the engine
generator set will continue to run. Once the relay is opened
the unit will shut down and remain in the standby mode until
the remote start relay is closed again.
F - ESTOP- & ESTOP+ - Remote Emergency Stop terminals.
These two terminals are shipped with a jumper installed. If your
application requires the installation of a Remote Emergency Stop
switch, remove the jumper and wire your switch to these termi-
nals. This unit will not start and run without either the jumper
installed or a remote N/C switch installed..
G - FUEL SELECT JUMPER - This connection allows you to
change the engine from one fuel to the other. Without the jumper
installed between "FUEL SELECT" & "GROUND" you are set to
run on NG, with a jumper installed the engine is set to run on LP.
See "Changing the Fuel Type" for additional information.
H - REMOTE DISPLAY PANEL INTERFACE TERMINALS -
These interface terminals are prewired to allow for the connection
of a Basler RDP-110 remote display. This display allows for the
remote annunciation of alarms at a location such as a nurses
station or a control room. This display is used to meet the remote
annunciation requirements of NFPA 110 standards.
NOTE:
This feature must be turned on at the time the manufacture.
When used with the RDP-110 two twisted pairs of 20 AWG wire
may be used for distances of up to 4000 feet. The terminal
blocks are designed to use terminal lugs on all wires and the
screws should be torqued to 9.6 in. lbs.
DC Interconnections to the Automatic Transfer Switch
Two control wires are required between the A.T.S. panel and the
generator control terminal box. Depending on the distance, 14 to
16 gauge stranded wire should be used. These wires should be
labeled S1 and S23.
*************
***** WARNING *****
*************
Be sure Engine Generator is in the "OFF" position before you
make any DC interconnections.
*******CAUTION******
Never run the AC and DC wiring in the same conduit.
Zenith ATS
The terminal markings in the Zenith ATS are marked “X1” and
“X2”. The wire labeled “Start 1” is routed to start contact "X1” and
the wire labeled “Start 23” is routed to start contact “X2”
ASCO 165 UL SWITCH
X1
X2
