Delivery Inspection
After opening the carton, carefully inspect the transfer
switch components for any damage that may have occurred
during shipment.
If loss or damage is noted at time of delivery, have the
person(s) making delivery note all damage on the freight bill
and affix his signature under the consignor's memo of loss
or damage. If loss or damage is noted after delivery, contact
the carrier for claim procedures. Missing or damaged parts
are not warranted.
Shipment contents
• Automatic transfer switch (1)
• Installation and operator's manual (1)
• Current transformers (2)
To be supplied by installer:
• Connecting wire and conduit
• Various specialty tools/equipment
Typical
— — — — — — Control Wiring
Hot Water
Heater
Alternate
— — — — — — Control Wiring
Hot Water
Heater
6
Contactor
Distribution
Panel
Branch Circuits
Disconnect Switch
Emergency
Contactor
Load
Center
Emergency Branch
Circuits
Disconnect Switch
Mounting Guidelines
The system circuitry is enclosed in a NEMA Type 3R
enclosure suitable for indoor/outdoor use. Guidelines for
mounting the enclosure include:
• Install enclosure on a firm, sturdy supporting structure.
• The enclosure must be installed with minimum
NEMA 3R hardware for conduit connections.
• To prevent switch contact distortion, level and plumb
the enclosure. This can be done by placing washers
between the enclosure and the mounting surface.
• NEVER install the switch where any corrosive
substance might drip onto the enclosure.
• Protect the switch at all times against excessive
moisture, dust, dirt, lint, construction grit and
corrosive vapors.
Typical automatic transfer switch installations are depicted
below. It is best if the transfer switch is mounted near
the utility meter, either inside or outside. Discuss layout
suggestions/ changes with the owner before beginning the
system installation process.
Transfer Switch
Main
w/ Service
and Generator
Disconnect
Main
Transfer
Distribution
Switch
Panel
Watt -
Hourmeter
Generator
Air
Conditioner
Watt -
Hourmeter
Branch
Circuits
Generator
Air
Conditioner
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