Installation & Operation Manual

6Hydronic piping (continued)

Flow switch, relief valve and temperature and pressure gauge installation

Basic steps are listed below to guide you through the installation of the flow switch, relief valve, and temperature and pressure gauge provided with the unit.

1.For Models 399 - 500 install the close nipple on the outlet connection of the heat exchanger. Install the tee with the 3/4 inch fitting positioned vertically and on the top as shown in FIG. 6-1. For Models 600 - 800 install the tee directly to the outlet connection of the heat exchanger with the 3/4 inch fitting positioned vertically and on the top (see FIG. 6-2).

2.For Models 700 - 800 install the 3/4 inch close nipple in the tee. Install the relief valve on the 3/4 inch close nipple (FIG. 6-2). For Models 399 - 600 install the relief valve directly into the 3/4 inch fitting on the tee (FIG. 6-1).

3.Install the close nipple on the downstream side of the relief valve tee (FIG. 6-1).

4.Install the tee with the 1 inch fitting positioned vertically and on the top (FIG. 6-1).

Figure 6-1Flow Switch, Relief Valve and Temperature and Pressure Gauge Installation_Models 399 - 500

RELIEF VALVE

FLOW SWITCH

PADDLE

TEMPERATURE AND

PRESSURE

GAUGE

TEE WITH FITTING ON TOP

(FIELD PROVIDED)

CLOSE NIPPLE (FIELD PROVIDED)

TEE WITH 1” FITTING ON TOP

CLOSE NIPPLE

TEE WITH 3/4” FITTING ON TOP

CLOSE NIPPLE

5.Attach paddle #3 to the flow switch per the manufacturer’s instructions.

6.Install the assembled flow switch into the 1 inch fitting of the tee installed in Step 4 (see FIG. 6-1).

7.Install a field provided close nipple on the downstream side of the flow switch (see FIG.’s 6-1 and 6-2).

8.Install a field provided tee with the gauge fitting positioned vertically and on the top (FIG.’s 6-1 and 6-2)

9.Install the temperature and pressure gauge provided with the unit into the top fitting of the tee (a bushing may be necessary) installed in Step 8 (FIG.’s 6-1 and 6-2).

Figure 6-2Flow Switch, Relief Valve and Temperature and Pressure Gauge Installation_Models 600 - 800

RELIEF VALVE

CLOSE NIPPLE

FLOW SWITCH

PADDLE

TEMPERATURE AND

PRESSURE

GAUGE

NOTICE

Be sure to install the flow switch so that the arrow on the flow switch is pointing in the direction of the flow (see FIG. 6-3).

TEE WITH FITTING ON TOP

(FIELD PROVIDED)

CLOSE NIPPLE (FIELD PROVIDED)

TEE WITH 1” FITTING ON TOP

CLOSE NIPPLE

TEE WITH 3/4” FITTING ON TOP

CLOSE NIPPLE

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Lochinvar 800 operation manual Hydronic piping
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800 specifications

Lochinvar 800 is a groundbreaking boiler system designed to meet the heating needs of modern residential and commercial buildings. Renowned for its reliability and advanced technology, the Lochinvar 800 promises efficiency and performance that set it apart from conventional heating systems.

One of the standout features of the Lochinvar 800 is its high-efficiency heat exchanger, which enables significantly lower energy consumption compared to traditional units. This efficiency translates to substantial energy savings, making it not only an environmentally friendly choice but also a cost-effective one. The system boasts an impressive thermal efficiency rating, often exceeding 95%, which ensures that a large portion of the energy consumed is converted into usable heat.

Incorporating cutting-edge control technologies, the Lochinvar 800 utilizes smart controls that enable precise temperature regulation. These controls provide users with the ability to program and adjust settings according to specific heating needs, enhancing comfort while minimizing energy waste. The integration of modulating gas burners further optimizes energy usage, continuously adjusting the output based on the current demand, thereby preventing energy loss.

Another key characteristic of the Lochinvar 800 is its compact and sleek design, allowing for easy installation in various spaces, from utility rooms to commercial settings. The boiler's lightweight construction means that it can be mounted in tight areas, providing flexibility that adapts to the needs of the installation site.

Safety features are a top priority for the Lochinvar 800, equipped with advanced diagnostics and monitoring systems that ensure trouble-free operation. These systems continually assess performance and identify potential issues before they can evolve into serious problems, promoting longevity and reliability.

The Lochinvar 800 is also compatible with various heating distribution systems, including radiant floor heating and traditional radiators, making it a versatile choice for a wide range of applications. Coupled with its low emissions profile, the Lochinvar 800 stands out as a sustainable option in today’s market.

In summary, the Lochinvar 800 represents a new era in boiler design, merging efficiency, innovative technology, and adaptability to meet the challenges of contemporary heating needs. Its advanced features ensure optimal performance while maintaining a commitment to environmental responsibility, making it an ideal solution for energy-conscious consumers.
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