User Guide

ManualsBrandsRinnai ManualsPlumbing Supplies91,300 BTU, Hybrid Indoor Tankless/Tank Water Heater (Natural Gas)

— Do not store or use gasoline or other ammable vapors and liquids in the vicinity of this or any other

appliance.

— WHAT TO DO IF YOU SMELL GAS

 Do not try to light any appliance.

 Do not touch any electrical switch; do not use any phone in your building.

 Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instrucons.

 If you cannot reach your gas supplier, call the re department.

— Installaon and service must be performed by a licensed professional.

This enre manual must be le for the consumer. The consumer must read and

refer to this manual for proper operaon and to maintain the water heater.

If the informaon in these instrucons is not followed exactly, a re or explosion

may result causing property damage, personal injury or death.

WARNING

READ ALL OF THE INSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR OPERATING THIS WATER HEATER.

This manual provides informaon on the installaon, operaon, and maintenance of the water heater. For proper operaon and

safety, it is important to follow the instrucons and adhere to the safety precauons.

A licensed professional must install the water heater according to the exact instrucons on pages 4-30.

The consumer must read the enre manual to properly operate the water heater and to have regular maintenance performed.

Operaon and Installaon Manual

RH180 (REU-VA1320WF-US)

Automac Circulang Tank Water Heater

(Chaue-eau à circulaon automaque )

FOR INDOOR APPLICATIONS ONLY

Hybrid Tank-Tankless Water Heater

ANSI Z21.10.3 ● CSA 4.3-(2011)

— Ne pas entreposer ni uliser d'essence ou ni d'autres vapeurs ou liquids inammables à proximité de

cet appareil ou de tout autre appareil.

— QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ :

• Ne pas tenter d'allumer d'appareil.

• Ne touchez à aucun interrupteur ; ne pas vous servir des téléphones se trouvant dans le bâment.

• Appelez immédiatement votre fournisseur de gaz depuis un voisin. Suivez les instrucons du

fournisseur.

• Si vous ne pouvez rejoindre le fournisseur, appelez le service des incendies.

—L'installaon et l'entreen doivent être assurés par un installateur ou un service d'entreen qualié ou

par le fournisseur

Assurez-vous de bien suivre les instrucons données dans cee

noce pour réduire au minimum le risque d'incendie ou d'explosion

ou pour éviter tout dommage matériel, toute blessure ou la mort.

AVERTISSEMENT

Summary of content (44 pages)

PAGE 1
Automatic Circulating Tank Water Heater (Chauffe-eau à circulation automatique ) Hybrid Tank-Tankless Water Heater Operation and Installation Manual RH180 (REU-VA1320WF-US) FOR INDOOR APPLICATIONS ONLY ANSI Z21.10.3 ● CSA 4.3-(2011) This entire manual must be left for the consumer. The consumer must read and refer to this manual for proper operation and to maintain the water heater. READ ALL OF THE INSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR OPERATING THIS WATER HEATER.
PAGE 2
Table of Contents Safety Definitions ............................................. 2 Checklist for Gas and Electricity .................... 26 Safety Behaviors and Practices for the Consumer and Installer ...................... 3-5 Final Checklist ................................................ 27 Installation Instructions Technical Data Specifications ................................................. 28 Installer Qualifications ..................................... 6 General Instructions............
PAGE 3
Safety Behaviors and Practices for the Consumer and Installer WARNING  Before operating, smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.  Keep the area around the appliance clear and free from combustible materials, gasoline, and other flammable vapors and liquids.
PAGE 4
Safety Behaviors and Practices for the Consumer and Installer CAUTION  BURN HAZARD. Hot exhaust and vent may cause serious burns. Keep away from water heater unit. Keep small children and animals away from unit.  Hot water outlet pipes leaving the unit can be hot to touch. In residential applications, insulation must be used for hot water pipes below 36” due to burn risk to children.
PAGE 5
Safety Behaviors and Practices for the Consumer and Installer WARNING  Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water. (N’utilisez cet appareil s’il alimentation a été plunge dans l’eau, meme partiellement.
PAGE 6
Installation Instructions Installer Qualifications General Instructions A licensed professional must install the appliance, inspect it, and leak test it before use. The warranty will be voided due to improper installation.
PAGE 7
 Make sure the water heater and its water lines are protected from freezing. Damage due to freezing is not covered by the warranty.  You must follow the installation instructions and those in Care and Maintenance for adequate combustion air intake and exhaust. Prepare for installation Parts included  Water heater  Temperature-Pressure Relief (T&P) Valve  Install the vacuum relief valve per local codes.  Gas Valve  Massachusetts 248 CMR Section 10.
PAGE 8
Determine Installation Location You must ensure that clearances will be met and that the vent length will be within required limits. Consider the installation environment, water quality, and need for freeze protection. Requirements for the gas line, water lines, and electrical connection can be found in their respective installation sections of this manual. Water Quality Consideration of care for your water heater should include evaluation of water quality.
PAGE 9
Location This water heater is not approved for use in manufactured (mobile) homes or outdoor installations. Attic: Installation of the water heater must be accomplished in such a manner that if the tank or any connection should leak, the flow of water will not cause damage to the structure. For this reason, it is not advisable to install the water heater in an attic or upper floor. When such locations cannot be avoided, a suitable drain pan should be installed under the water heater.
PAGE 10
Checklist to Determine Installation Location □ The water heater is not exposed to corrosive compounds in the air. □ The water heater location complies with the clearances stated in the manual and on the label, located on the side of the unit. □ The area surrounding the water heater does not contain flammable vapors that could ignite. □ The water supply does not contain chemicals or exceed total hardness that will damage the heat exchanger.
PAGE 11
Minimum Clearances The minimum clearances from combustibles or non-combustibles construction, 0 inches from the sides, 0 inches from the back, and 12 inches from the top. For closet installation, 4 inches front, or for alcove installation (Dégagements minimaux à assurer entre les parois de l’appareil et les constructions incombustibles: 0 po (côtés), 0 po (arriè) et 12 po (dessus).) (Installation dans une garde-robe: assurer un dégagement de 4 po devant l’appareil. Pour installation dans une alcôve.
PAGE 12
Typical Installations A B D E HOT WATE R OUTLET F C H COLD WA TER SUPPLY I A Hot Water Outlet * B Hot Water Outlet Valve * C Temperature-Pressure Relief Valve D Cold and Hot Unions * E Cold Water Supply Valve * F Cold Water Supply * G Thermal Expansion Tank * H 4” B-Vent * I Combustion Air Screen J Operation Unit / Temperature Control K Outlet Receptacle * L Drain Pan * M Temperature-Pressure Relief Valve Discharge Pipe (do not cap, plug, or reduce ) * N Drip L
PAGE 13
Combustion Air Requirements This water heater requires adequate combustion air for ventilation and dilution of flue gases. Failure to provide adequate combustion air can result in unit failure, fire, explosion, serious bodily injury or death. Use the following methods to ensure adequate combustion air is available for correct and safe operation of this water heater. Important: Combustion air must be free of corrosive chemicals. Do not provide combustion air from corrosive environments.
PAGE 14
Combustion Air Requirements Confined Space: (Small Room, Closet, Alcove, Utility Room, Etc.) A confined space is defined in the National Fuel Gas Code, ANSI Z223.1/NFPA 54 as "a space whose volume is less than 50 cubic feet per 1000 Btu/hr (4.8 m3 per kW per hour) of the aggregate input rating of all appliances installed in that space." A confined space must have two combustion air openings.
PAGE 15
Combustion Air Requirements Using Indoor Air For Combustion When using air from other room(s) in the building, the total volume of the room(s) must be of adequate volume (Greater than 50 cubic feet per 1000 Btu/hr). Each Combustion air opening must have at least one square inch of free area for each 1000 Btuh, but not less than 100 square inches each. through two permanent openings, one commencing within 12 in. (300mm) of the top and one commencing within 12” (300mm) of the bottom, of the confined space.
PAGE 16
Venting Requirements Venting WARNING This water heater must be vented vertically to the outside of the building or structure. Poison carbon monoxide gas hazard. This water heater is not designed or certified for side wall horizontal vent terminations. All installations must be vented in accordance with National Fuel Gas Code, ANSI Z223.1/NFPA 54 - latest edition and the requirements of state or local codes.
PAGE 17
Venting Requirements Vent Dampers Vent dampers must be certified in accordance with ANSI Z21.68 Before installing any flue damper, consult the local gas authority and damper manufacturer for proper installation. WARNING Thermal Operated Vent Dampers: Should NOT be used with this appliance. This appliance has a thermal efficiency greater than 80%. This higher efficiency will result in lower flue gas temperatures. Such temperatures may be too low to activate a thermal operated vent damper.
PAGE 18
Venting Requirements Inspection: The entire length of the vent connector shall be readily accessible for inspection, cleaning and replacement. Joints: Must be fastened by sheet metal screws or other approved methods. Support: Vent connectors must be supported per the vent manufacturer’s installation instructions to avoid dips or sags in the vent and maintain the required clearances.
PAGE 19
Venting Requirements Masonry Vertical Venting Masonry Chimneys shall be built and installed in accordance with NFPA 211, Standard for Chimneys, fireplaces, Vents and Solid Fuel-Burning Appliances. Before assembling the vent connector to a chimney, the chimney must be inspected for signs of obstruction or damage. If previously used for solid or liquid fuel burning appliances or fireplaces, the chimney must be cleaned.
PAGE 20
Checklist for Combustion Air and Venting Requirements □ Verify proper clearances around the vents . □ Ensure that the Combustion Air Requirements are followed that will provide sufficient combustion air for the appliance. □ Ensure you have used the correct venting products for Category 1 and that you have completely followed the venting manufacturer’s installation instructions and these installation instructions. All installations must be vented in accordance with National Fuel Gas Code NFPA 54/ANSI Z223.
PAGE 21
Installation of Plumbing INFORMATION Temperature-Pressure Relief Valve Requirements  If a T&P discharges periodically, this may be due to Install the Temperature-Pressure Relief (T&P) Valve according to these instructions. thermal expansion in a closed water supply system. Contact the water supplier or local plumbing inspector on how to correct this situation. Do not plug the relief valve. This water heater is provided with a combination temperature-pressure relief valve.
PAGE 22
Connect Water Heater to Water Supply Checklist for Plumbing Water connections to the tankless water heater should follow all state and local plumbing codes. □ Purge the water line of all debris and air by If this is a standard installation, refer to the Piping Diagram for Basic Installation. 1. Use of this layout should provide a trouble free installation for the life of the water heater. Before making the plumbing connections, locate the COLD water inlet and the HOT water outlet.
PAGE 23
Massachusetts - Required Plumbing RH180 Manual 23
PAGE 24
MUST DO Installation of Gas Supply  A manual gas control valve must be placed in the WARNING gas supply line to the water heater. A union can be used on the connection above the shut off valve for the future servicing or disconnection of the unit. 1. If you are not knowledgeable or qualified to install gas lines or connections, then contact a licensed professional to install the gas supply.  Check the type of gas and the gas inlet pressure 2. Turn off 120v power supply. 3. Turn off the gas. 4.
PAGE 25
Pipe Sizing Table - Natural Gas Size the gas pipe The gas supply must be capable of handling the entire gas load at the location. Gas line sizing is based on gas type, the pressure drop in the system, the gas pressure supplied, and gas line type. For gas pipe sizing in the United States, refer to the National Fuel Gas Code, NFPA 54. The below information is provided as an example. The appropriate table from the applicable code must be used. 1.
PAGE 26
Connect Electricity Adjust for High Altitude WARNING Do not use an extension cord or an adapter plug with this appliance. Set switches 2 and 3 to the values shown in table below for your altitude. The default setting for the appliance is 0-2000 ft (0-610 m) with switches No. 2 and No. 3 in the OFF position. The water heater must be electrically grounded in accordance with local codes and ordinances or, in the absence of local codes, in accordance with the National Electrical Code, ANSI/NFPA No. 70.
PAGE 27
Final Checklist □ The water heater is not exposed to corrosive □ Clean the inlet water filter by first powering OFF the water heater. Remove the lower enclosure. Drain and relieve the pressure from the system. Remove and clean the filter of any debris that may reduce water flow. Once clean, replace the filter. Close the drain valve and pressurize the system. Power the unit back ON and set desired temperature. For more information on cleaning the filter please reference page 39 section C.
PAGE 28
Technical Data Specifications Model RH180 Natural Gas: 59,500 BTU/Hr Minimum Gas Consumption Btu/h Propane: 47,600 BTU/Hr Natural Gas: 91,300 BTU/Hr Maximum Gas Consumption Btu/h Propane: 87,300 BTU/Hr First Hour Rating 180 GPH Storage Tank Volume 40 gallons Recovery (90° Rise) 89 GPH Temperature Selections 110, 120, 130, 135, 140 Maximum Temp Setting 140º F (60º C) Minimum Temperature Setting 110º F (43º C) Weight 150lb (68kg) Thermal Efficiency 80% Noise level 50 dB Standby Electri
PAGE 29
Dimensions Inches (millimeters) 23.8 (605) 26 (660) 48.6 (1234) 51.2 (1300) 8 (203) 18.7 (475) 24.8 (630) 27.5 (698) 25.8 (655) 27.
PAGE 30
Wire Diagram Wire Color Legend W:.....WHITE BK:….BLACK BR:….BROWN R:…...
PAGE 31
Parts Breakdown ITEM NO. 2 3 4 5 6 7 8 9 10 11 12 13 14 15 17 18 19 20 21 23 24 25 26 DESCRIPTION OF ENGINE PARTS EXHAUST DUCT BOX OVERHEAT SWITCH HEAT EXCHANGER THERMAL FUSE ELECTRODE FLAME ROD MANIFOLD ASSEMBLY P.C.B.
PAGE 32
Consumer Operation Guidelines for the Safe Operation of your Water Heater FOR YOUR SAFETY READ BEFORE OPERATING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. BEFORE LIGHTING: ENTIRE SYSTEM MUST BE FILLED WITH WATER AND AIR PURGED FROM ALL LINES. A.This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner. Do not try to light the burner by hand. B.
PAGE 33
How to Use the Temperature Controller TEMPERATURE CONTROL Note: Freeze protection will activate as long as gas and electricity are available. Five temperature settings are available. Push the up and down arrows to choose your desired temperature setting.
PAGE 34
WARNING  Before operating, smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.  Keep the area around the appliance clear and free from combustible materials, gasoline, and other flammable vapors and liquids.  Always check the water temperature before entering a shower or bath.  Do not use this appliance if any part has been under water.
PAGE 35
Diagnostic Codes and Remedies WARNING Some of the checks below should be done by a licensed professional. Consumers should never attempt any action that they are not qualified to perform. Code 05 Definition Air Filter Error 07 Circulation Flow Rate Has Dropped Below 2.
PAGE 36
Code Definition Remedy 14 Thermal Fuse Check for restrictions in air flow around unit and vent terminal. 16 Over Temperature Warning (safety shutdown because unit is too hot) 30 FV Sensor 31 Burner Sensor 32 Heat Exchanger Outgoing Temperature Sensor 35 Tank Temperature Sensor 38 CO or FV Sensor 52 Modulating Solenoid Valve Signal Combustion Fan 61 licensed professional only Check gas type of unit and ensure it matches gas type being used.
PAGE 37
System Maintenance The appliance must be inspected annually by a licensed professional. Repairs and maintenance should be performed by a licensed professional. The licensed professional must verify proper operation after servicing. WARNING To protect yourself from harm, before performing maintenance:  Turn off the electrical power supply by unplugging the power cord or by turning off the electricity at the circuit breaker. (The temperature controller does not control the electrical power.
PAGE 38
Water Filter Inspection, Detection & Cleaning A. Inspection:  To maintain optimum performance, periodically inspect the water filter.  To clean the water filter follow the cleaning procedure described in Step C.  If the water filter appears damaged, contact a qualified service provider for a replacement filter (Part No. 107000032) B. Detection:……..(Controller Flashing 07 or 63)  Flashing 07 is an indication that the water filter is dirty or restricting water flow thru the water heater.
PAGE 39
Required Maintenance Water Heater Tank Drain a pail of water through the drain valve at least once a year. This will remove excess sediment from the bottom of the tank. This sediment, if allowed to accumulate, will reduce the efficiency and the life of the tank. Temperature and Pressure-Relief Valve Manually operate the temperature and pressure-relief valve at least once a year, standing clear of the outlet to avoid being burned. Lift and release the operating lever on the valve to make it operate freely.
PAGE 40
Hybrid Tank-Tankless Flush Procedure Use the following procedure to flush the heat exchanger of lime or scale build up. Damage caused by lime buildup is not covered by the unit’s warranty. After flushing, reset any error codes by turning off the power to the unit and turning the power back on. 1.Disconnect electrical power to the water heater. 2.CLOSE the cold water supply valve. Leave the hot water valve and a hot water fixture OPEN to remove pressure from the system. 3.
PAGE 41
Consumer Support Warranty Information The installer is responsible for your water heater’s correct installation. Please complete the information below to keep for your records: Purchased from: _________________________________________________________________ Address: _____________________________ Phone: _________________________________ _____________________________ Date of Purchase: __________________________________ Date of Installation: __________________ Model No.
PAGE 42
What will Rinnai do? Rinnai will repair or replace the covered product or any part or component that is defective in materials or workmanship as set forth in the above table. Rinnai will pay reasonable labor charges associated with the repair or replacement of any such part or component during the term of the labor warranty period. All repair parts must be genuine Rinnai parts.
PAGE 43
Limitation on warranties No one is authorized to make any other warranties on behalf of Rinnai America Corporation. Except as expressly provided herein, there are no other warranties, expressed or implied, including, but not limited to warranties of merchantability or fitness for a particular purpose, which extend beyond the description of the warranty herein.
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