Water Connections

RPV-I&S

1.When directly communicating with the outdoors, each opening must have a minimum free area of 1 square inch per 4000 BTU (6.5 cm2/1.2 kw) per hour of total input rating of all equipment in the enclosure.

2.When communicating with the outdoors through vertical ducts, each opening must have a minimum free area of 1 square inch per 4000 BTU (6.5 cm2/1.2 kw) per hour of total input rating of all equipment in the enclosure.

3.When communicating with the outdoors through horizontal ducts, each opening must have a minimum free area of 1 square inch per 2000 BTU (6.5 cm2/0.6 kw) per hour of total input rating of all equipment in the enclosure.

4.When ducts are used, they must be of the same cross-sectional area as the free area of the openings to which they connect. The minimum dimension of rectangular air ducts must be not less than 3 inches (7.5 cm).

Specially Engineered Installations

The requirements noted under CONFINED SPACES above must not necessarily govern when special engineering, approved by the authority having jurisdiction, provides an adequate supply of air for combustion, ventilation, and dilution of flue gases.

Note:

BEFORE PROCEEDING WITH THE INSTALLATION, CLOSE THE MAIN WATER SUPPLY VALVE.

After shutting off the main water supply, open a faucet to relieve the water line pressure to prevent any water from leaking out of the pipes while making the water connections to the water heater. After the pressure has been relieved, close the faucet. The COLD water inlet and HOT water outlet are identified on the top of the water heater. The fittings at the cold water inlet and hot water outlet are dielectric waterway fittings with 3/4" NPT male thread. Make the proper plumbing connections between the water heater and the plumbing system to the house. Install a shut-off valve in the cold water supply line.

CAUTION

If sweat fittings are to be used DO NOT apply heat to the nipples on top of the water heater. Sweat the tubing to the adapter before fitting the adapter to the water connections. It is imperative that heat is not applied to the nipples containing a plastic liner.

WARNING

FAILURE TO INSTALL AND MAINTAIN A NEW, LISTED 3/4” X 3/4”

TEMPERATURE AND PRESSURE RELIEF VALVE WILL RELEASE THE MANUFACTURER FROM ANY CLAIM THAT MIGHT RESULT FROM EXCESSIVE TEMPERATURE AND PRESSURES.

If this water heater is installed in a closed water supply system, such as one having a back-flow preventer in the cold water supply, provisions must be made to control thermal expansion. DO NOT operate this water heater in a closed system without provisions for controlling thermal expansion. Your water supplier or local plumbing inspector should be contacted on how to control this situation

After installation of the water lines, open the main water supply valve and fill the water heater. While the water heater is filling, open several hot water faucets to allow air to escape from the water system. When a steady stream of water flows through the faucets, close them and check all water connections for possible leaks. NEVER OPERATE THE WATER HEATER WITHOUT

FIRST BEING CERTAIN IT IS FILLED WITH WATER.

WARNING

For protection against excessive temperatures and pressure, install temperature and pressure protective equipment required by local codes, but not less than a combination temperature and pressure relief valve certified by a nationally recognized testing laboratory that maintains periodic inspection of production of listed equipment or materials as meeting the requirements of the Standard for Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply Systems, ANSI Z21.22 or the Standard CAN1-4.4. Temperature and Pressure and the Standard CAN1- 4.4, Temperature, Pressure, Temperature and Pressure Relief Valves and Vacuum Relief Valves. The combination temperature and pressure relief valve shall be marked with a maximum set pressure not to exceed the maximum working pressure of the water heater. The combination temperature and pressure relief valve shall also have an hourly rated temperature steam BTU discharge capacity not less than the hourly rating of the water heater.

Install the combination temperature and pressure relief valve into the opening provided and marked for this purpose on the water heater.

Note: Some models may already be equipped or supplied with a combination temperature and pressure relief valve. Verify that the combination temperature and pressure relief valve complies with local codes. If the combination temperature and pressure relief valve does not comply with local codes, replace it with one that does. Follow the installation instructions above on this page.

Install a discharge line so that water discharged from the combination temperature and pressure relief valve will exit within six (6) inches (15.2 cm) above, or any distance below the structural floor and cannot contact any live electrical part. The discharge line is to be installed to allow for complete drainage of both the combination temperature and pressure relief valve and the discharge line. The discharge opening must not be subjected to blockage or freezing. DO NOT thread, plug or cap the discharge line. It is recommended that a minimum clearance of four (4) inches (10.2 cm) be provided on the side of the water heater for servicing and maintenance of the combination temperature and pressure relief valve.

Do not place a valve between the combination temperature and pressure relief valve and the tank.

WARNING

Hydrogen gas can be produced in an operating water heater that has not had water drawn from the tank for a long period of time (generally two weeks or more). Hydrogen gas is extremely flammable. To prevent the possibility of injury under these conditions, we recommend the hot water faucet to be open for several minutes at the kitchen sink before you use any electrical appliance which is connected to the hot water system. If hydrogen is present, there will be an unsual sound such as air escaping through the pipes as hot water begins to flow. Do not smoke or have open flame near the

faucet at the time it is open.

This water heater can deliver scalding temperature water at any faucet in the system. Be careful whenever using hot water to avoid scalding injury. Certain appliances such as dishwashers and automatic clothes washers may require increased temperature water. By setting the thermostat on this water heater to obtain the increased temperature water required by these appliances, you may create the potential for scald injury. To protect against injury, install an anti-scald tempering valve in the water system. This valve will reduce point of discharge temperature by mixing cold and hot water in branch supply lines. Such valves are available from the local plumbing supplier. Please consult with a plumbing professional.

RPV-I&S specifications

Lochinvar RPV-I&S (Remote Pressure Vessel – Inspection & Safety) is a remarkable innovation in the realm of heating technology, designed to enhance performance, safety, and efficiency in residential and commercial applications. This cutting-edge system integrates advanced features and technologies that cater to the demands of modern energy requirements.

A standout feature of the Lochinvar RPV-I&S is its robust construction, ensuring durability and longevity. The unit is built with high-quality materials that can withstand significant pressure and temperature variations. This durability not only guarantees long-term performance but also minimizes maintenance, making it a cost-effective solution for users.

One of the key characteristics of the RPV-I&S is its remote monitoring capability. This technology allows users to oversee the system's performance from anywhere, providing real-time data on pressure levels, temperature, and overall efficiency. This feature not only enhances user convenience but also enables proactive maintenance, reducing the likelihood of unexpected failures.

The RPV-I&S employs state-of-the-art safety mechanisms. It is equipped with multiple fail-safes and alarm systems designed to detect anomalies in the system's operation. If unsafe conditions arise, the system can automatically shut down, preventing potential hazards. This focus on safety ensures peace of mind for both operators and end-users.

Efficiency is another hallmark of the Lochinvar RPV-I&S. The unit utilizes advanced burner technologies to maximize energy output while minimizing waste. This efficient operation aids in reducing energy bills and contributes to environmental sustainability by lowering carbon emissions. Users can expect substantial energy savings over the unit's lifespan.

Furthermore, the RPV-I&S accommodates a variety of fuel types, including natural gas, propane, and electric options, providing flexibility to users based on their specific needs and energy source availability.

With a user-friendly interface, the Lochinvar RPV-I&S ensures easy operation and adjustment of settings. Its intuitive controls facilitate quick temperature adjustments and system programming, making it accessible for users of all technical backgrounds.

In summary, the Lochinvar RPV-I&S stands out as a technologically advanced, efficient, and safe solution for heating applications. Its combination of robust construction, remote monitoring capabilities, enhanced safety features, and flexible fuel options positions it as a leader in the industry, catering to the evolving demands of today’s energy landscape.