Onan LTC Series - Page 15

OPERATION
when
the
operation
Selector
switch
is
used
in
conjunction
with
the
plant
control
switch,
the
following
points
should be
noted.
The
plant
conhol
switch
predominates.
when
it
is
on sfop,
the
plant
stops
and
cannot
be
started
from
the
toad
transfer.
When it
is on
run,
the plant
cannot
be
stopped
from
the
load
transfer.
To
control
the
plant
from
the
load
transfer,
set the
plant
switch
on
remote.
The
Operation
Selector
switch
will then
start
and
stop
the
plant.
Before
settlng
the
plant
for
remote operation,
test it
by
setting
the
plant
csntrol
switch
on
run.
The
plant
should
start
(but
not take over
the.
load)
unless
the
commercial
line
fails.
With
the
commercial
power
connected
to
the
control,
set the
plants
switch
at
remote.
The
control is
now ready
for
autonratic operation
and
will
start if commer-
cial
power
fails.
As
a
test, the
entrance
sw,itch of commer-
cial
iower
can
be opened.
The
plant
should start
and
supply
the load.
0PERATI0N
SELECT0R
S\VITCH
(Optionol)
The
operation
selector
switch allows the
plant
to be
con-
holled
from
the
load
transfer
control.
It is
a
three
positron
switch:
In
the
check
position,
the
plant
starts and runs
but
does
not
assume the
load
unless
a
line fail'.ue occurs.
Use
this
posilion
for
manual
plant
excrcise.
Tirc
s/op position
shuts
down the
plant
and
prevents
it
from
sturting.
Use
this
position
for
plant
repairs and
servicc,
The
automatic
position
allorvs
the
plant
to assume
the
lo;rd when
a
line
failure
occurs.
This
is
the normal
po.ition
(or
automatically
starting
and stopping the standby
plant.
TIME
DELAY
RELAYS
(Optionol)
All time
delay
relays are
set
at the factory.
Unless
other-
wise
stated
in
the
order
specifications, relays
are
set
as
shown
in
Table ? If
necessary, these
settings
can
be
adJusted
(see
l/ainf
enmce).
TAdLE
2
.
TIME
DELAY
RELAY STANDARD
SETTINGS
(Unlesr
Othc:wlsa
Spoci!'led In
Ordor)
BATTERY
CHARGING
CIRCUIT
Set the
trickle charger
to maintain
the
plant
batteries
at
full-charge.
This
can
best be
done by
setting
the battery
charger
and checking
the battery
condition
for
several
weeks
with a hydrometer.
Adjust the charger
for the minimum
chargerate
that
wrll rnaintain
charge
condition.
Higher
rates
will
shorten battery life.
Large
ambient
temperature
changes
wiil
probably
require
charger
adjustment.
EXERCISER
CLOCK
The
exerciser
clock
requires
setting to
determine
the number
and length
of
exercise
periods
each week.
It
will
operate
the
plant
for
any
multiple of
1$minutes
per
day
for
as many
days
as
is
desired
.
Onan
recommends
running
the
plant
for
at
least
3Gminutes
once
a
week. Running
the
plant
for
one
long
period
each
week is
better
than several
short
periods.
FrG.
l5
The clock
is
equipped
with a
24hour dial
(light
half for
day hours,
shaded half
for night).
Ten trip-pins
are
supplied
with the
clock for
a
maximum
of
five
operations
daily.
An
operation
is set
in the
following
manner:
A trip-pln
placed
in
the inside
row of holes
starts
the
plant;
a
pin
in the
out-
side
row
stops the
plant.
The
specific
days
the
plant
is
to
operate
are
set
on
tne
spoked
wheel beiow
the
daily
dial.
place
a trip
pin
in
each
spoke
for
which
no
ererciso
period
is
desired.
Example:
l0
l'1ln
-
Hagen
I
;;;";;l
EXERCISE
CLOCK
SET TO
START
PLANT AT
9
P.M.
EACH
FRIDAY
AND
STOp
lT
AT
t0
p.H.
Dclay
In
starting
Dclay on load
plckup
Delay
on
retransfer
Delay
on
plant
stopping
-after
retransfer
l0
Mln
-
Hagon
i
t2