Rheem RUTG2-53(PVN)(PVP)(XN)(XP) warranty Water Filter Clean Water Inlet Check Valve Nipple

Page 17

Water Supply Connections, continued

CAUTION: This water heater must only be used with the following water supply system conditions:

●With clean, potable water free of corrosive chemicals, sand, dirt or other contaminates.

●With inlet water temperatures above 32°F (0°C), but not exceeding 120°F (49°C).

●Free of lime and scale deposits.

●DO NOT reverse the hot and cold water connections. The water heater will

not operate.

Water Filter

Clean the

Water Filter

Water Inlet

Check Valve

Nipple

Water

Notice: Use only teflon tape on cold and hot water connections and lines.

This appliance is not intended for space heating application. Do not connect this heater to waterlines previously used for space heating or non-potable water distribution. All water piping and components shall be suitable for potable water.

Notice: If the water flow resistance of a shower head is too high, the burner in the water heater will fail to ignite. Keep the shower head clean from debris that could cause additional pressure drop.

Notice: If using mixing valves on the outlet, choose one that prevents cold water pressure from overcoming hot water line pressure.

Notice: If multiple water heaters are installed in a manifold system, the water piping must be in “Parallel”. A water pressure of 40 psi (276 kPa) is recommended for each water heater for proper operation of the water heaters.

Alternate Water Piping Arrangement with Optional Valve Kit

Valve kits may be purchased and installed as optional items. Contact your distributor or place of purchase for details.They allow for one person full diagnostic testing and ease of flushing the system. The kit includes two full port isolation valves, one for the cold side and one for the hot side. Refer to page 23.

Install a shutoff valve near the inlet of the water heater for service and draining purposes.

It is not recommended to use pipes with smaller diameters than the water supply connection of the water heater.

Before connecting the water supply pipe to the water heater, open the shutoff valve and clean out sand, debris, air, caulking material, etc. inside the pipe. Connect to the water inlet, then check water flow. Close the shutoff valve and clean the water filter.

Be sure to connect the water inlet and the hot water outlet as shown on the water heater. If reversed, the water heater will not function.

Installation of unions or flexible copper connections are recommended on the HOT and COLD water lines, so that the water heater may disconnect easily for servicing, if necessary.

Install a Check Valve between the water heater and the water shutoff valve (see the top left diagram).

The following should be addressed in regards to the HOT WATER OUTLET:

●Connections between the water heater and point(s) of use should be as short and direct as possible.

●DO NOT use lead or plastic pipe.

●To conserve energy and minimize heat loss, insulation of hot water piping is recommended (see Hot and Cold Pipe Insulation Installation on page 24).

Notice: The flow rate of hot water may vary when more than two faucets (appliances, fixtures, etc.) are being used simultaneously.

Notice: The pipes MUST be completely drainable. If the hot water faucets are located at a point higher than the water heater, place a drain valve at the lowest point (see diagram at the left).

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Contents Tankless Water Heater Injury You can find them on a label on the applianceThat will result in death or serious Install and Properly Vent the Water HEATER… N G E R Natural GAS and Liquefied Petroleum Models Read and Follow this Safety Information Carefully Location of the Outdoor water heater Installing the Outdoor water heaterLocation of Indoor Water Heater Installing the Indoor water heaterInspect Shipment Combustion and Ventilation Air Indoor Water Heater OnlyCorrosive Atmospheres Venting Lengths VentingMaximum Vent Length Minimum Vent Length The ventingDraining the Condensate Venting Through Closed SpacesAppliance Vent Adapter Horizontal Vent Terminal Location Installing the water heaterAdditional Considerations Outdoor Water HeaterIndoor Water Heater Vent Horizontal Wall Thimble Installation Vertical Vent Termination Location Vertical Vent InstallationWater Supply Connections Mounting the Water HeaterThermal Expansion Water Filter Clean Water Inlet Check Valve Nipple Relief Valve Pressure Testing the Gas Supply System Leak TestingGas Supply High AltitudeControl Remote Control InstallationModel Description Range NumberRemote Control ExtensionWall CablePenetration Suitable Indoor or Outdoor water heaters Electrical ConnectionIndoor water heaters only Outdoor Models Indoor ModelsDuring Installation of this water heater… Hot and Cold Pipe Insulation InstallationInsulation Blankets Do’sInstallation Check List To Turn OFF GAS to Appliance Lighting the water heaterWater Temperature Setting Safety PrecautionsTime/Temperature Relationship in Scalds Operating the water heaterWater Temperature Setting… Drain heater. See Draining Water Heater section on Routine Preventative MaintenanceHousekeeping Burner Inspection Venting System InspectionVacation and Extended Shut-Down Condensate Trap InspectionFreeze Protection Draining the Water HeaterBefore You Call For Service… Outdoor Water Heater Only Indoor Water Heater OnlyInstructions For Placing a Parts Order Replacement PartsTemperature Setting DIP Switch Adjustment If YOU Need Service

RMTG2-53(PVN)(PVP)(XN)(XP), RTG2-53(PVN)(PVP)(XN)(XP), RUTG2-53(PVN)(PVP)(XN)(XP), PTG53-(PVN)(PVP)(XN)(XP) specifications

Rheem PTG53-(PVN)(PVP)(XN)(XP), RUTG2-53(PVN)(PVP)(XN)(XP), RTG2-53(PVN)(PVP)(XN)(XP), and RMTG2-53(PVN)(PVP)(XN)(XP) are an impressive lineup of tankless water heaters that exemplify efficiency, technology, and convenience. These models represent Rheem's commitment to innovation in water heating solutions, appealing to both residential and commercial users.

At the core of these models is their ability to deliver continuous hot water on demand, which eliminates the need for large storage tanks. The compact design allows for flexible installation options, saving valuable space and making them suitable for varied settings, including tight spaces. The units are designed to provide an endless supply of hot water, making them ideal for families with high hot water needs.

Advanced heating technology is another hallmark of the Rheem PTG53 and its counterparts. These models typically feature high-efficiency condensing design, which captures and reuses exhaust heat to enhance overall efficiency. This means users can enjoy lower energy bills while also contributing to a reduced environmental footprint.

The Rheem Tankless Water Heaters come equipped with smart functionalities, including digital displays for easy temperature settings and monitoring. Some models are compatible with Wi-Fi connectivity, enabling users to control and monitor their water heating systems remotely through a smartphone app. This feature adds an extra layer of convenience, particularly for tech-savvy homeowners seeking seamless integration into their smart home ecosystems.

Safety features are also well-considered in these models, with automatic shut-off mechanisms and overheating protection ensuring safe operation. Additionally, they boast impressive flow rates, providing sufficient hot water for multiple fixtures simultaneously, thus meeting the demands of larger households or commercial establishments.

Finally, Rheem stands behind its products with robust warranties, showcasing confidence in their durability. The PTG53, RUTG2, RTG2, and RMTG2 models are constructed to offer longevity and reliability, ensuring peace of mind for users.

In summary, Rheem's PTG53-(PVN)(PVP)(XN)(XP), RUTG2-53(PVN)(PVP)(XN)(XP), RTG2-53(PVN)(PVP)(XN)(XP), and RMTG2-53(PVN)(PVP)(XN)(XP) represent the pinnacle of tankless water heating technology. With their efficient, space-saving design, advanced features, and emphasis on safety, these units are well suited for modern living, providing endless hot water and comfort to users.
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