Gas connections, Gas Supply Gas Pressure Test

Installation & Service Manual

3Gas connections

Gas Supply

Gas Pressure Test

Verify that the appliance is supplied with the type gas specified on the rating plate. This appliance is orificed for operation up to 2000 feet altitude. The appliance will be derated 4% per 1000 feet above 2000 feet elevation. Consult the factory for installations above 2000 feet elevation. Field conversions for operation at high altitude must be performed by certified personnel only. The appliance will be marked to indicate suitability for high altitude operation.

GAS SUPPLY PRESSURE: Measured at the inlet pressure tap located upstream of the combination gas valve(s) see FIG. 3-5, page 22.

TABLE - 3A

GAS SUPPLY PRESSURE

	Natural Gas	LP Gas
Max. (Inches Water Column)
Max. (Inches Water Column)	14	14

Min. (Inches Water Column)	4.5	11

Maximum inlet gas pressure must not exceed the value specified. Minimum value listed is for the purposes of input adjustment.

MANIFOLD PRESSURE: Measured at the pressure tap on the downstream side of the combination gas valve(s) (see FIG. 3-5, page 22). The gas regulator settings for single stage and two stage operation are factory set to supply proper manifold pressure for normal operation. To check manifold pressure, see Manifold Adjustment Procedure. Do not increase manifold pressure beyond specified pressure settings shown below in Table 3B.

	TABLE - 3B
MANIFOLD PRESSURE

	Single and		Two Stage
	Two-Stage		Two Stage
	Two-Stage
Input Gas
Input Gas	Full or High Fire		Low Fire Settings
Btu/hr	Settings		Low Fire Settings
Btu/hr	Settings
	Natural	LP Gas	Natural	LP Gas
	Gas		Gas
45,000	3.5"	10"	0.9"	2.5"

75,000	2.4"	7"	0.9"	2.5"

90,000 - 180,000	3.5"	10"	0.9"	2.5"

215,000 - 260,000	3.5"	10"	0.9"	2.5"

1.The appliance must be disconnected from the gas supply piping system during any pressure testing of that system at a test pressure in excess of 1/2 PSIG (3.5kPa).

2.The appliance must be isolated from the gas supply piping system by closing a manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 PSIG (3.5kPa).

3.The appliance and its gas connection must be leak-tested before placing it in operation.

Gas Connection

1.Safe operation of the appliance requires properly sized gas supply piping. See data in Table 3C.

2.Gas pipe size may be larger than appliance gas connection.

3.Installation of a union is suggested for ease of service, see FIG. 3-1 on page 19.

4.Install a manual main gas shutoff valve, outside of the appliance gas connection and before the gas valve or manifold connection, when local codes require.

5.A trap (drip leg) MUST be provided by the installer in the inlet of the gas connection to the appliance, see FIG. 3-1 on page 19.

6.The combination gas valve has an integral vent limiting device and does not require venting to atmosphere, outside the building.

7.Optional gas controls may require routing of bleeds and vents to the atmosphere, outside the building when required by local codes.

TABLE - 3C

FITTINGS TO EQUIVALENT STRAIGHT PIPE

Diameter Pipe (inches)

3/4	1	1 1/4	1 1/2	2	3	4	5

	Equivalent Length of Straight Pipe (feet)

2	2	3	4	5	10	14	20

TABLE - 3D

GAS CONNECTIONS

	Btu/hr	Pipe Size
	INPUT	Pipe Size
	INPUT

	45,000 - 135,000	1/2"

	180,000 - 260,000	3/4"

000 - 260, 000 Btu/hr, 45 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 45, 000 Btu/hr, 000 - 260 Gas connections, Gas Supply Gas Pressure Test, Gas Connection

Models: 000 - 260 000 Btu/hr 45