Manuals / Generac / Lawn and Garden / Portable Generator

Generac 004702-0, 004703-0, 004704-0, 004705-0, 004706-0, 004707-0 owner manual Primary Regulator

Models: 004702-0, 004703-0, 004704-0, 004705-0, 004706-0, 004707-0

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Section 6 – Installation

QUIETPACT 55, 65, and 75 Recreational Vehicle Generators

Figure 6.15 – Typical Propane Gas Fuel System

◆ 6.5.5 PRIMARY REGULATOR

◆6.5.3 SOME IMPORTANT CONSIDERATIONS

When installing an LP gas system, consider seriously the following items:

•All fittings, lines, hoses and clamps must be tight and free of leaks. Apply a pipe sealant to threads when assembling threaded connections. This reduces the possibility of leakage.

•Test the entire fuel system for leaks using approved test methods.

•Optimum gas pressure at the inlet to the gaseous fuel solenoid valve and secondary regulator is 11 inches water column.

•The installer’s fuel supply connection point is at the gaseous fuel solenoid valve. This is a 3/4-inch (female) connection. Provide a suitable 3/4-inch NPT (male) connector to attach to the fuel supply line.

•Use a length of approved flexible fuel hose between the gaseous fuel solenoid valve and rigid gas pip- ing. The flexible line should be at least 6 inches longer than necessary.

◆6.5.4 VAPOR WITHDRAWAL

LP gas is stored in pressure tanks as a liquid. The gas systems used with these generators were designed only for vapor withdrawal type systems. Vapor withdrawal systems use the gas vapors that form above the liquid fuel in the tank. Do NOT attempt to use the generator with any liquid with- drawal type system.

Gas pressure delivered to the solenoid valve must be properly regulated by means of a primary gas regula- tor. Mount the primary regulator at the gas tank out- let or in the supply line from the gas tank. The fol- lowing rules apply:

•For best results, the primary regulator supplies gaseous fuel to the secondary regulator at 11 inch- es water column. Do NOT exceed 14 inches water column.

•The installer must be sure the primary regulator is rated at sufficient gas flow to operate the generator plus all other gas appliances in the circuit.

NOTE:

Recommended MINIMUM gas flow rate for all air- cooled PRIMEPACT series generators is 67 cubic feet per hour.

If an existing primary gas regulator does not have a sufficient flow capacity for the generator and other gas appliances in the circuit, (a) install a pri- mary regulator with adequate flow rate, or (b) install a separate regulator only and rated at least 67 cubic feet per hour. The inlet side of any pri- mary regulator that supplies the generator must connect directly to a gas pressure tank. Do NOT tee the generator line into a gas circuit feeding other areas.

◆6.5.6 GASEOUS CARBURETION

LP gas vapors should be supplied to the secondary regulator inlet at about 11 inches water column (pos- itive pressure). The engine pistons draw air in during the intake stroke (Figure 6.16). This air passes through a carburetor venturi, which creates a low pressure that is proportional to the quantity of air being pumped. The low pressure from the carburetor venturi acts on the regulator diaphragm to pull the diaphragm toward the source of low pressure. A lever attached to the diaphragm opens a valve to permit gas glow through the carburetor.

Figure 6.16 – LP Gas Carburetion Diagram

28 Generac® Power Systems, Inc.

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Generac 004702-0, 004703-0, 004704-0, 004705-0, 004706-0, 004707-0 Primary Regulator, Some Important Considerations
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004702-0, 004703-0, 004704-0, 004705-0, 004706-0, 004707-0 specifications

Generac has established itself as a leader in the power generation industry, particularly noted for its wide range of generators designed to provide reliable backup power. Among its various models, the Generac series consisting of the 004702-0, 004703-0, 004704-0, 004705-0, 004706-0, and 004707-0 stands out due to their dependable performance and innovative features. Each model in this series is engineered for both residential and light commercial applications, offering peace of mind during power outages.

One of the main features of these models is their state-of-the-art engine technology. Equipped with a Generac engine, these generators are designed to provide efficient, powerful performance. The engines are robust and designed to withstand extended use, ensuring that users can rely on them when needed most.

A standout feature is their Automatic Transfer Switch (ATS) capability. When the power goes out, these generators automatically switch on, providing uninterrupted power to essential appliances and systems in the home. This seamless transition is vital for maintaining safety and comfort during outages, eliminating the need for manual intervention.

Fuel efficiency is another area where these models excel. They utilize either natural gas or propane, offering flexibility in fuel choice depending on availability and preference. Their engineering is optimized for minimal fuel consumption while maximizing output, making them a cost-effective solution for power needs.

Furthermore, these models incorporate advanced monitoring and control systems. Users can conveniently monitor generator performance and status through an intuitive mobile app or control panel. This technology allows users to receive alerts and updates, ensuring they are always informed about the power situation at their location.

Noise reduction technology is also a key characteristic of this series. Generac's engineers have focused on minimizing sound output, providing a quieter operation compared to many other generators in the market. This feature is particularly beneficial for residential areas where noise can be a significant concern.

Overall, the Generac 004702-0, 004703-0, 004704-0, 004705-0, 004706-0, and 004707-0 models exemplify reliability, efficiency, and advanced engineering. Their comprehensive features and user-friendly technology make them an excellent choice for anyone seeking a dependable backup power solution.