Winco PSS70000 - Manual (Page 10)

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Because of the many different types of service, feeder, and
distribution equipment, no specific wiring instructions can be
provided. It is recommended that only copper wire be used. In
all cases it is essential that while the load is connected to the
generator, there can be absolutely no feedback from the
generator to the power line or the power line to the generator.
When properly installed, the normal A.T.S. Control and safety
systems will eliminate all paths for feedback.
To wire the automatic transfer switch into the existing wiring, first
determine which circuits will be on the emergency load circuit. If
the entire load is to be transferred, the transfer switch can be
wired in directly after the watt-hour meter or main entrance.
Providing the service entrance ampere rating is within the
transfer switch’s rated capability.
If only specific circuits are to be powered under emergency
power failure conditions, an additional distribution panel
designated “emergency distribution panel” must be installed.
All selected emergency circuits are removed from main distribu-
tion panels and reinstalled in the emergency distribution panel.
Suggested circuits: freezer, refrigerator, furnace, emergency
lights, sump pump, emergency outlet circuits, etc. Total running
load must not exceed generator rating.
D.C. ELECTRICAL INTERCONNECTION
PSS20000LS, PSS35000 and PSS70000
Three 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 will
be labeled “Bat +", "Bat -", and "Start".
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***** WARNING *****
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Be sure both the mode switch on the Engine Generator and the
mode switch in the Automatic Transfer Switch are in the "OFF"
postition before you make any DC interconnections.
The connections to the engine control will be made in a 2" X 4"
connection box mounted on the right hand side of the generator
control box . The wiring from the engine control has already
been stubbed into this connection box for your convenience. The
wires are labeled as follows:
Battery Positive #5 Yellow Wire (Bat+)
Battery Negative #1 Yellow Wire (Bat-)
Start Signal #23 Yellow Wire (Start)
The connections in the automatic transfer switch will be made
on a terminal block. This terminal block is located in the lower
right hand corner on the back wall of the switch. The terminals
are labeled BAT + (battery positive), BAT - (battery negative), and
Start (start signal).
These control wires MUST NOT be run in the same conduit as
the AC power leads coming from the generator or the 120 volt
circuit for the block heater.
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***** WARNING *****
*************
EQUIPMENT DAMAGE - DC connections between Winco engine
generators and other makes of Automatic Transfer Switches will
vary. The Winco engine generator sets require a relay closure
between Battery Negative (wire #1) and Start ( wire #23) to
operate. The Battery Positive is not used in other A.T.S. panels.
Connecting Battery Positive in any switch other than a Winco can
cause permanent damage to the engine control module
BLOCK HEATER WIRING
A 15 Amp fused power feed is necessary to complete the
installation of the block heater installed on the engine. This
circuit must be wired from an existing breaker box, fed by normal
line power. Do not run this circuit from the transfer switch
wiring. These wires should be run in their own conduit, i.e. not
with the power leads or with the control leads.
The wiring for the block heater has been terminated in a 2" X 4"
connection box located on the cross rail of the generator frame
on the right hand side. Remove the top cover of this box and you
will find a ground connection point along with two stub leads.
The "hot" lead of the power circuit will be attached to the thermo-
stat/switch mounted in the top cover of the box. The "neutral"
lead will be attached to the other black lead in the connection
box. Use the proper wire nuts to complete this installation.
The water immersion heater is mounted in the engine block.
The thermostat will turn on the heater anytime the air tempera-
ture in the enclosure drops below 22 degrees. The thermostat
will turn off the heater anytime the temperature rises above 32
degrees.
INITIAL START UP
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***** WARNING *****
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EQUIPMENT DAMAGE - DO NOT jump start these engine
generator sets. Starting these units on a low battery or jump
starting them will cause damage to the engine control module.
Use the following check list to verify correct installation before
starting the engine:
1. Engine oil. Fill as required with proper grade/qty.
2. Engine coolant. Fill as required with proper
mixture.
3. Unit mounting base properly bolted down.
4. Clearance for service and maintenance on all
sides.
5. Proper fuel line material and size.
6. All fuel line connections tight.
7. Fuel line protected and a moisture trap installed
(may be required for N.G.).
8. LP/NG pressure O.K. 4-6 Oz. (7-11" Wc).
9. Battery connections clean and tight.
10. Battery fully charged.
11. All A.C. and D.C. wiring installed and properly
protected.
After completing the above checklist, the engine-generator
set is ready for the initial start-up test.