INSTALLATION
ESSENTIAL CIRCUIT
Ensure that the total of the selected load circuits fed by this transfer switch are within the generator's rated capacity.
ISOLATION
Essential electrical loads are loads that will be powered by the Home Generator System. Essential loads are grouped together and wired into the transfer switch.
TO THE INSTALLER: Consult with Home Generator System owner(s) to discuss their “Selection of Essential Circuits”, described in operator’s manual.
Figure 2 — Typical System Diagram with Essential Circuits
The following requirements apply to this type of isolation system:
•The Manual Transfer Switch is installed after the main distribution panel.
•The Manual Transfer Switch has a load rating of 50 Amps. This is the maximum load rating of the essential loads.
All wiring must conform to national, state and local codes.
The illustration in Figure 2 depicts the Home Generator System and assumes the utility is supplying 120/240 Volt,
| To Utility Power | Watt Meter |
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| Main Distribution Panel | |
To Range |
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240V |
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To Water Heater |
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| To Air Conditioner (240V) | |
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| To Other Circuits (120V) | |
Utility Supply |
| Manual Transfer Switch | |
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Generator Supply |
| (in utility position) | |
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To Briggs & Stratton |
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Standby Generator |
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120V To Microwave |
| 120V To Freezer |
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120 V To Bathroom |
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240V To Well Pump |
| To Refrigerator |
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| 120V | |
120V To Sump Pump |
| To Lights | |
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Equipment Ground Bus |
| To Furnace Blower |
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| Neutral |
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| 7 |
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