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Mounting the automatic transfer switch (a.t.s.) – Winco PSS12H4W/A User Manual

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LP/NG FUEL CONVERSION

The PSS12H4W/A generator systems have been

tested on NATURAL GAS prior to shipment. If you are
going to use them on LP vapor, follow the procedures
outline in fuel installation.

LUBRICATION

Before starting the engine, fill the crankcase with the

proper weight/grade of oil, as recommended by the
engine manufacturer’s maintenance instructions. The
necessity of using the correct oil, and keeping the
crankcase full cannot be over emphasized.

INSTALLING THE BATTERY

**** CAUTION ****

In the following battery installation procedure, check to
be sure the righ hand toggle switch is in the disabled
position and the left hand toggle switch in the off position.
This should be your last step before initial start-up.

A customer supplied twelve-volt battery is required to

complete the installation. Installation of the highest CCA
rated battery, within the correct BCI group, will increase
cold weather starting performance.

Gel batteries should

not be used with the battery tender installed in the
generator enclosure.

MINIMUM

Model

BCI Group

CCA Rating

PSS12H4W

U1

235*

* 300 CCA Recommended for cold weather starting.

*****CAUTION*****

EQUIPMENT DAMAGE - Always connect the positive
cable first and the negative cable last, when disconnect-
ing, it is negative cable first and positive last. Failure to
connect and disconnect in the proper sequence can
cause equipment damage.

Observe polarities: connect the positive (+) battery

terminal to the (+) cable from the control panel; the
negative (-) battery terminal is connected to the negative
cable (ground) from the engine generator assembly.

All connections must be clean and tight. Check the

electrolyte (fluid) in the battery periodically to be sure it is
above the plates. Never allow the battery to remain in a
discharged condition.

*****CAUTION*****

EQUIPMENT DAMAGE - NEVER JUMP START these
units. Doing so will destroy the engine control module
rendering the unit non-operational. Remove and fully
recharge the battery before attempting to start.

CONNECTING THE BATTERY CHARGER

A two-stage battery tender is provided on all PSS series

generators. This battery tender charges at a rate of 750
mA until the battery is fully charged and then automati-
cally 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 in
the same location as the other AC and DC connections.

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.

A 120 volt receptacle is mounted in the generator

connection box. The receptacle is prewired with black,
white and green leads attached to it, this is where you
will connect your 120 volt fused power feed. This
receptacle can also be used when installing the oil heater
kit and the battery warmer.

** NOTICE **

The battery tender is not intended to recharge a battery
which has become completely discharged. It is designed
to produce enough current to recharge a slightly low
battery, maintaining it fully charged.

MOUNTING THE AUTOMATIC
TRANSFER SWITCH (A.T.S.)

*************
***** WARNING *****
*************
EQUIPMENT DAMAGE- Protect the switch from construc-
tion grit and metal chips to prevent a malfunction or
shortened life of the switch. Contactors returned for
warranty consideration with foreign material inside of
them will not be warranted.

The Automatic Transfer Switch connects the load

(lights, furnace, outlets, etc.) to the normal power line
during standby. When normal power fails, the A.T.S.
starts the engine generator set, disconnects 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 *****
*************
All wiring must be done by a licensed electrician, and
must conform to the national electrical code and comply
with all state and local codes and regulations. Check with
your electrical inspectors before proceeding!