Winco PSS40LS/B - Manual (Page 8)

Page 6 1108-20 60706-148
CONNECTING THE BATTERY CHARGER &
BLOCKHEATER
A two-stage battery tender is provided on all PSS series genera-
tors. This battery tender charges at a rate of 750 mA until the
battery is fully charged and then automatically switches to a 13.2
VDC float charger. The charger has an indicator light on it, red
indicates it is charging, and green indicates it is in the storage
mode (float charge). This charger is mounted on the engine
generator set just below the engine control panel.
** NOTICE **
The trickle charger is not intended to recharge a battery which
has become completely discharged. It is designed to produce
just enough current to maintain a fully charged battery.
This battery tender requires a circuit breaker protected AC circuit
from your distribution panel be run out to the engine generator
set. These AC wires can be run in the same conduit as the other
AC leads from the generator. It is suggested that this circuit be
fused for 15 amps, then both the battery charger and the block
heater can be connected to the same circuit. A 120 volt duplex
receptacle is mounted on the generator just below the engine
control panel, the battery tender is shipped already plugged into
the receptacle.
The engine frost plug heater has been prewired with a 120 volt
plug which can be plugged into the other side of the duplex
receptacle after wiring 120 volt power feed to the receptacle. The
frost plug heater has been prewired through a temperature
sensor which will turn the heater on when the air temperature
drops to 22 degrees F. and off when the air temperature reaches
30 Degrees F.
MOUNTING THE AUTOMATIC TRANSFER SWITCH
(Winco Non-UL only)
The automatic transfer switch (A.T.S.) connects the load (lights,
furnace, outlets, etc.) to the normal power line. When normal
power fails, the A.T.S. starts the engine generator set, discon-
nects the power line and then connects the load to the standby
generator set. When normal power is restored, the automatic
switch retransfers the electrical load to the normal service and
stops the engine. The A.T.S. panel should be mounted as close
to the distribution panel as possible.
*************
***** WARNING *****
*************
FIRE HAZARD - All wiring must be done by a licensed electri-
cian, and must conform to the national electrical code and comply
with all state and local codes and regulations. Check with the
local authorities before proceeding!
PSS27LS - The Automatic Transfer Switch typically shipped with
the PSS27LS system has a 230 Amp line side contactor installed
to handle your normal power needs and a 150 Amp generator
side contactor to handle the emergency generator output. Before
installing the A.T.S. you must first ensure that the 230 Amp line
side contactor will be sufficient to handle your complete service.
See Figure 5. (i.e. the main line breaker must not be larger than
230 Amps) If you have 250, 300 Amp or larger system, you will
not be able to transfer the complete electrical system. In this
case it will be necessary to install a secondary emergency
distribution panel or purchase a larger transfer switch.
PSS40LS - The Automatic Transfer Switch typically shipped with
the PSS40LS system has a 230 Amp line side contactor installed
to handle your normal power needs and a 150 Amp generator
side contactor (230 Amp for single phase) to handle the emer-
gency generator output. Before installing the A.T.S. you must
first ensure that the 230 Amp line side contactor will be sufficient
to handle your complete service. See Figure 5. (i.e. the main line
breaker must not be larger than 230 Amps) If you have 250, 300
Amp or larger system, you will not be able to transfer the com-
plete electrical system. In this case it will be necessary to install
a secondary emergency distribution panel or purchase a larger
transfer switch.
*************
***** WARNING *****
*************
PERSONAL INJURY - Be certain the operation selector switch
on the front of the A.T.S. Control is in the “stop” position and the
main power switch “off”. For your own protection, verify these
important safety precautions yourself with reliable instruments
before proceeding.
A.C. ELECTRICAL CONNECTIONS
Single Phase
The standby generator terminals in the A.T.S are marked
“GENERATOR - G1, G-N, G3”. The “hot” leads G1 and G3 wire
directly to the top lugs on the generator side contactor, terminals
G1 and G3. The G-N connection is made to the lug on the
standoff just to the right of the generator side contactor.
The line terminals in the A.T.S. are marked “LINE - L1, L-N, L3”.
The “hot” leads L1 and L3 will wire directly to the top lugs on the
line side contactor. The L-N connection will be made on the
stand-off just to the left of the line side contactor.
The load terminals in the A.T.S. are marked “LOAD - T1, T-N,
T3”. The “hot” leads T1 and T3 will wire directly to the lower lugs
on the line side contactor. Jumper leads have already been
installed between the lower lugs on the line side and the lower
lugs on the generator side contactors. The T-N connection will
be made on the stand-off just to the left of the contactor.
An equipment grounding lug is provided just above the
T-N connection for your use in grounding the transfer switch.
Three Phase
The standby generator terminals in the A.T.S. are marked
“GENERATOR - G1, G2, G3 and G-N. The “hot” leads G1 G2
and G3 wire directly to the generator side contactor, terminals
G1, G2 and G3. The G-N connection is made to the lug on the
standoff just to the right of the generator side contactor.
The line terminals in the A.T.S. are marked “LINE - L1, L2, L3 and
L-N”. The “hot” leads L1, L2 and L3 will wire directly to the top
lugs on the line side contactor. The L-N connection will be made
on the standoff just to the left of the contactor.
The load terminals in the A.T.S. are marked “LOAD - T1, T2, T3
and T-N”. The “hot” leads T1, T2 and T3 will wire directly to the