Combination GAS Valves

20.Set the thermostat to call for heat. The appliance is now ready to operate.

IMPORTANT

Upon completion of any testing on the gas system, leak test all gas connections with a soap solution while main burners are operating. Immediately repair any leak found in the gas train or related components. Do Not operate an appliance with a leak in the gas train, valves or related piping.

Check burner performance by cycling the system while you observe burner response. Burners should ignite promptly. Flame pattern should be stable, see “Maintenance-Normal Flame Pattern.” Turn system off and allow burners to cool, then cycle burners again to ensure proper ignition and flame characteristics.

Pressure Regulator

Adjustment (under cap screw)

Outlet Pressure Tap

Inlet

Pressure

Tap

Pilot Outlet

	Red Reset Button	Gas Control
	Red Reset Button	Knob
		Knob

FIG. 20 F1 Gas Valve 90,000 - 270,000 Btu/hr Models

FIG. 22 M9 Gas Valve 45,000 - 399,999 Btu/hr Models

Each unit has a combination gas valve(s) to control the gas supply to the burners. The 500,000 Btu/hr model has two combination gas valves to supply gas to the burners. The combination valve consists of a gas regulator and two valve seats to meet the requirements for redundant gas valves. The valve has a gas control knob that must remain in the open position at all times when the appliance is in service. Each gas valve has pressure taps located on the inlet and outlet sides. Manifold pressure is adjusted using the regulator located on the valve. The manifold pressure is preset at the factory and adjustment is not usually required. If the manifold pressure is to be adjusted, follow the “Gas Manifold Pressure Adjustment Procedure”, page 15 for proper adjustment.

Venting of Combination Gas Valves

The combination gas valve regulator used on all models is equipped with an integral vent limiting orifice. The vent limiter ensures that the volume of gas emitted from the valve does not exceed the maximum safe leakage rate allowed by agency requirements. Combination gas valve/regulators equipped with integral vent limiters are not required to have vent or relief lines piped to the outdoors. A dust cap is provided at the vent termination point on the valve to prevent blockage of the vent limiter by foreign material. The combination gas valve regulator with an integral vent limiter complies with the safety code requirements of CSD-1, CF-190(a) as shipped from the manufacturer without the installation of additional vent lines.

FIG. 21 F9 Gas Valve 90,000 - 500,000 Btu/hr Models

000 Btu/hr, 000 - 500, RSB-i&s-05, 45, CP-5M-4/08 specifications

The Lochinvar 000 BTU/hr, 45,000 - 260 is a high-efficiency water heater designed for residential and commercial applications, showcasing advanced technologies that set it apart in the industry. With a powerful heating capacity of up to 260,000 BTU/hr, this unit is engineered to meet the varying demands of hot water for both large households and businesses.

One of the standout features of the Lochinvar 000 is its innovative design that maximizes energy efficiency. Utilizing condensing technology, this water heater captures and reuses exhaust gases that would otherwise be lost, thereby improving thermal efficiency significantly. The result is an impressive Energy Factor (EF) rating that not only promotes sustainability but also translates into lower energy bills for the end user.

The unit is equipped with a user-friendly digital control interface that simplifies operation and monitoring. This control system allows for precise temperature adjustments, ensuring that users can maintain their desired water temperatures effortlessly. Additionally, the advanced diagnostics provided by the control system help in troubleshooting potential issues before they develop into more significant problems, enhancing the reliability of the unit.

Durability is another hallmark of the Lochinvar 000. Constructed with high-quality materials, including a robust stainless-steel tank, this water heater is designed to withstand the rigors of daily use. The stainless-steel construction also helps to resist corrosion, which is a common issue in water heaters, thereby extending the lifespan of the unit.

Furthermore, Lochinvar has integrated safety features into the design of the 000 model, including an automatic shut-off system and advanced flame safeguard controls to prevent hazardous situations. This focus on safety ensures peace of mind for users, making it an ideal choice for family homes and workplaces alike.

In terms of installation, the Lochinvar 000 is relatively straightforward, with options for both indoor and outdoor setups. The compact design allows for flexible installation, accommodating various space requirements without compromising performance.

Overall, the Lochinvar 000 BTU/hr, 45,000 - 260 combines reliability, efficiency, and advanced technology, making it a superior choice for those seeking a powerful and dependable water heating solution. This water heater not only meets but exceeds modern expectations for performance and safety, catering to a wide range of hot water needs.

Lochinvar RSB-i&s-05, CP-5M-4/08, 45 Combination GAS Valves, Venting of Combination Gas Valves

Models: 000 Btu/hr 000 - 500 RSB-i&s-05 45 CP-5M-4/08