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Hersteller: Briggs & Stratton Dateigröße: 1.61 mb Dateiname: 2b7177dd-f6c0-44e2-be3c-3380c377c618.pdf Unterrichtssprache:

Ensure that the total of the selected load circuits fed by this transfer switch are within the generator's rated capacity. The following requirements apply to this type of isolation system: • The Automatic Transfer Switch is installed after the main distribution panel. • The Automatic Transfer Switch has a load rating of 50Amps.This is the maximum load rating of the essential loads. All wiring must conform to national, state and local codes. The illustration in Figure 1 depicts the Home Generator System and assumes the utility is supplying 120/240 Volt, single-phase electrical service. Figure 1 — Typical System Diagram with Essential Circuits To Utility Power Watt Meter Main Distribution Panel To Air Conditioner (240V) To Other Circuits (120V) To Range To Water Heater 240V To Briggs & Stratton Home Generator Unit 120V To Microwave 120 V To Bathroom 240V To Well Pump 120V To Sump Pump Neutral 120V To Furnace Blower To Lights To Refrigerator 120V To Freezer Automatic Transfer Switch (in normal position) 6 Briggs & Stratton Power Products Automatic Transfer Switch Installation and Owner’s Manual Mounting Guidelines The Model 01917 Automatic Transfer Switch is enclosed in a NEMA Type 1 enclosure suitable for indoor use only. The Model 01918 Automatic Transfer Switch is enclosed in a NEMA Type 3R enclosure suitable for indoor/outdoor use. Guidelines for mounting the Automatic Transfer Switch include: • Model 01918 Automatic Transfer Switch must be installed with minimum NEMA 3R hardware for conduit connections. • Install the switch on a firm, sturdy supporting structure. • To prevent switch contact distortion, level and plumb the enclosure.This can be done by placing washers between the switch 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. The typical installation of the Automatic Power Transfer Switch is depicted in Figure 2. Discuss layout suggestions/changes with the owner before beginning the system installation process. Automatic Transfer Switch Main Distribution Panel Figure 2 — Typical Switch Mounting Power Wiring Interconnections All wiring must be the proper size, properly supported, of approved insulation qualities, and protected by NEC approved conduit. Complete the following connections between the generator, transfer switch and main distribution panel (Figure 3, on next page). CAUTION Per NEC code, low voltage wire cannot be installed in same conduit as power voltage wiring. • Failure to follow above warning could cause damage and/or malfunction of equipment. 1. Connect utility power supply leads from a two pole breaker installed in the main distribution panel to transfer switch terminals marked “UTILITY CONNECTION”. Use a 50 Amp circuit breaker. Ensure breaker is turned OFF. 2. Connect main distribution panel ground to the transfer switch “GND” bus. 3. Connect main distribution panel neutral lead to transfer switch “NEUTRAL” terminal. 4. Connect generator power supply leads from the generator’s control panel to transfer switch terminals marked “GENERATOR CONNECTION”. 5. Connect generator Neutral from the control panel to the transfer switch “NEUTRAL” terminal. 6. Connect generator “GND” from the control panel to the transfer switch “GND” terminal. 7. Connect generator utility 240V terminals to transfer switch utility 240V terminals. 8. Tighten all wire connections/fasteners to proper torque. 7 8 Briggs & Stratton Power Products Automatic Transfer Switch Installation and Owner’s Manual Generator Neutral is White wire Utility 240V AC GND lug Wire Nut Two Pole Breaker Utility Connection Generator Connection Rear of Control Panel Neutral Bus Neutral Bus Ground Bus Main Distribution Panel Automatic Power Transfer Switch Home Standby System Generator Figure 3 — Typical Installation Diagram for Transfer Switch Briggs & Stratton Power Products Automatic Transfer Switch Installation and Owner’s Manual SYSTEM OPERATION To select automatic transfer operation, do the following: 1. Set circuit breaker that sends utility power to transfer switch to “On” position. 2. Set generator’s main circuit breaker to its “On” position. 3. Install 15 Amp fuse in control panel on generator. 4. Set AUTO/OFF/MANUAL switch on generator to “AUTO” position. The system will now be in automatic operation mode. TESTING THE AUTOMATIC TRANSFER SWITCH Turn the circuit breaker feeding the transfer switch, to the “Off” position.The automatic sequence will follow.To go back to utility power, turn the circuit breaker to the “On” position. Automatic Sequence Utility Fail Utility voltage sensor senses when utility voltage is below 70 percent of nominal. Engine start sequence is initiated after 6 second time delay. Engine Warm-Up Time delay to allow for engine warm-up before transfer fixed at 20 seconds or 50 seconds with optional cold weather packag...

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