Rheem AP13731 warranty Leak Testing, Pressure Testing the Gas Supply System, High Altitude

Page 12

WARNING: Do not attempt to convert this water heater for use with a different type of gas other than the type shown on the rating plate. Such conversion could result in hazardous operating conditions.

Manual

Gas

Supply

Line

Shut-off

Valve

Manual Gas

Appliance

Shut-off

(Supplied)

Union

Sediment

Trap

Cap

Gas Supply

The supplied Manual Gas Appliance Shutoff Valve must be installed at the gas connection of the water heater at the time of installation (see diagram to the left).

The branch gas supply line to the water heater should be a minimum of 3/4” black steel pipe or other approved gas piping material.

A ground joint union or ANSI design certified semi-rigid or flexible gas appliance connector should be installed in the gas line close to the water heater. The National Fuel Gas Code (NFGC) ANSI Z223.1 and CAN B149 code mandates a manual gas shut-off valve: See NFGC & B149 for complete instructions.

If flexible connectors are used, the maximum length shall not exceed 36” (91 cm).

If lever type gas shut offs are used, they shall be T-Handle type.

Compound used on the threaded joints of the gas piping must be of the type resistant to the action of LP gas. Use compound sparingly on male threads only.

A sediment trap should be installed at the bottom of the gas line.

Do not use excessive force

(over 31.5 ft lbs.) (42.7 Nm) in tightening the pipe, particularly if teflon pipe compound is used, as the unit may be damaged.

The inlet gas pressure to the water heater must not exceed 10.5” w.c. (2.6 kPa) for natural or 14” w.c. (3.5 kPa) for LP gas. For purposes of input adjustment, the minimum inlet gas pressure (with main burner on) is shown on the water heater rating plate. If high or low gas pressures are present, contact your gas supplier for correction.

NOTICE: To ensure proper operation of the heater the gas pipe and gas meter must be sized correctly.

Gas piping shall be in accordance with local, utility company require- ment and/or in the absence of local codes, use the latest edition of the National Fuel Gas Code. In Canada the latest edition of CSA B149.1 Nat- ural Gas and Propane installation code.

WARNING: Never use an open flame to test for gas leaks, as property damage, personal injury, or death could result.

Leak Testing

The water heater and its gas connections must be leak tested at normal operating pressures before it is placed in operation.

Turn on the gas shut-off valve(s) to the water heater.

Use a soapy water solution to test for leaks at all connections and fittings. Bubbles indicate a gas leak that must be corrected.

The factory connections should also be leak tested after the water heater is placed in operation.

WARNING: Install a gas pressure regulator, in the gas supply line, which does not exceed the maximum supply pressure.

DO NOT use an industrial type gas regulator.

Pressure Testing the Gas Supply System

The water heater and its manual gas shut-

The water heater must be isolated from

off valve must be disconnected from the

the gas piping system by closing the

gas supply piping system during any

manual gas shut-off valve during any

pressure testing of the system at

pressure testing of the gas supply piping at

pressures in excess of 1/2 psi (14” w.c.)

pressures equal to or less than

(3.5 kPa).

1/2 psi (14” w.c.) (3.5 kPa).

High Altitude

Input rating of this water heater is based on sea level operation. At higher elevations the actual input rate may be lower than the value list- ed on the rating label. This water heater can be installed at elevations up to 3,280 feet (1000 m)without any change or modification.

NOTICE:

Select models may be available preset

12for operations at elevations up to 6,560 feet (2000 m).

NOTICE: For installations above

3,280 feet (1000 m) elevation, the connector on the PC board must be replaced. Do not install this water heater at elevations above 3,280 feet (1000 m) without installing the proper high altitude connector. Please contact your local distributor, dealer, or Rheem for replacement connector.

Image 12
Contents Tankless Water Heater You can find them on a label on the appliance That will result in death or seriousInjury Installand Properly Vent the Water HEATER… N G E R Natural GAS and Liquefied Petroleum Models Read and Follow this Safety Information Carefully Installing the Indoor water heater Location of Indoor Water HeaterInstalling the Outdoor water heater Location of the Outdoor water heaterInstalling the water heater Combustion and Ventilation Air Indoor Water Heater OnlyCorrosive Atmospheres Inspect ShipmentMounting the Water Heater Water Supply ConnectionsRelief Valve Lines.ReliefLeak Testing Pressure Testing the Gas Supply SystemGas Supply High AltitudeVenting Venting LengthsMaximum Vent Length Minimum Vent LengthVenting Through Closed Spaces Vent AdapterDraining the Condensate US Installations Horizontal Vent Terminal LocationIndoor Water Heater Additional ConsiderationsVent Horizontal Wall Thimble Installation Vertical Vent Installation Vertical Vent Termination LocationRemote Control Installation Remote ControlAvailability Model Number DescriptionInstalling the Main Remote Control Connecting the remote control to the water heaterPower Cord Indoor water heaters only Electrical ConnectionTypical Installation of Indoor Water Heater Not SuppliedInstalling the water heater Typical Installation of Outdoor Water HeaterHot and Cold Pipe Insulation Installation During Installation of this water heaterInsulation Blankets Do’sInstallation Check List Lighting the water heater To Turn OFF GAS to ApplianceSafety Precautions Water Temperature SettingTime/Temperature Relationship in Scalds Operating the water heaterWater Temperature Setting… Routine Preventative Maintenance HousekeepingDrain heater. See Draining The Water Heater section on Venting System Inspection Burner InspectionVacation and Extended Shut-Down Draining the Water Heater Freeze ProtectionBefore You Call For Service… Indoor Water Heater Only Outdoor Water Heater OnlyReplacement Parts Instructions For Placing a Parts OrderTemperature Setting DIP Switch Adjustment If YOU Need Service