Rinnai RL75E Operation And Installation Manual

Rinnai RL75E Operation And Installation Manual

Outdoor tankless water heater
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The VB series (RL75e and RL94e) are certified for
installation in manufactured (mobile) homes.
Register your product at www.rinnairegistration.com or
call 1-866-RINNAI1 (746-6241)
ANS Z21.10.3
CSA 4.3
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
WARNING
result causing property damage, personal injury or death.
- Do not store or use gasoline or other flammable 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 instructions.
If you cannot reach your gas supplier, call the fire
department.
- Installation and service must be performed by a qualified
installer, service agency or the gas supplier.
Outdoor Tankless Water Heater
Operation and Installation Manual
RL75e ................. REU-VB2528WD-US
RL94e ................. REU-VB2735WD-US
R98LSe ............... REU-VA3237W-US
R98LSe-ASME ... REU-VA3237W-ASME
FOR OUTDOOR APPLICATIONS ONLY
Table of Contents ..................... 2
Operating Instructions ............... 5
Maintenance ........................... 11
Error Codes ............................ 12
Consumer Support .................. 39
French Version ....................... 42
If the information in these instructions is not
followed exactly, a fire or explosion may

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Summary of Contents for Rinnai RL75E

  • Page 1: Table Of Contents

    The VB series (RL75e and RL94e) are certified for installation in manufactured (mobile) homes. Register your product at www.rinnairegistration.com or call 1-866-RINNAI1 (746-6241) — Do not store or use gasoline or other flammable vapors and — WHAT TO DO IF YOU SMELL GAS ANS Z21.10.3...
  • Page 2: Table Of Contents

    Clearances from Appliance ... 17 Attachment of the Water Heater ... 17 R98LSe-ASME Table of Contents Error Indication or Air Handler Control Switch .. (RL75e and RL94e only) ... 17 Electrical Connection ... 18 Gas Piping Water Piping Freeze Protection Piping ... 23 Recommended Piping for Basic Installation ..
  • Page 3: Specifications

    ** for commercial and hydronic applications requiring higher temperatures Rinnai is continually updating and improving products. Therefore, specifications are subject to change without prior notice. The maximum inlet gas pressure must not exceed the value specified by the manufacturer. The minimum value listed is for the purpose of input adjustment.
  • Page 4: Consumer Safety Information

    Consumer Safety Information Safety Definitions This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or hurt you and others. DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
  • Page 5: Operating Instructions

    The Rinnai water heater is one of the most advanced water heaters available. It provides a continuous supply of hot water at a preset temperature. This appliance is a direct vent appliance where air is brought in from the outside and combustion gases are exhausted to the outside.
  • Page 6: Temperature Controller

    Dimensions (inches): 3.5 W x 4.75 H x 0.75 D The MC-91 controller is the standard temperature controller that is supplied with the water heater. On indoor models it is integrated into the front panel. The MCC-91 controller is for commercial and hydronic applications requiring higher temperatures.
  • Page 7: How To Set The Temperature

    This water heater will attempt to provide hot water at the temperature setting even when the water flow is varied or when more than 1 tap is in use. The water heater can deliver water at only one temperature setting at a time.
  • Page 8: Temperature Options Without A Temperature Controller

    Water temperatures over 125º F (51º C) can cause severe burns or scalding. Refer to the Danger Alert on water temperatures. Rinnai shall not, in any event, be liable for damages resulting from such misuse or misapplication. Suggested temperatures are •Kitchen 120 ºF (49º...
  • Page 9: Using The Water Smart Bath / Fill Function

    The green Priority light will glow indicating that this controller is controlling the temperature and that the Rinnai water heater is ready to supply hot water. 2. Press the “Water Smart Bath Fill” button to set the water volume and temperature.
  • Page 10: Filling The Tub

    Bath Fill button.” 4. Turn off the bath hot water tap and push the Bath Fill button. The water heater will not allow hot water to flow from any source until the “Water Smart / Bath Fill” button is pushed.
  • Page 11: Maintenance

    Maintenance WARNING Turn off the electrical power supply, the manual gas valve and the manual water control valve whenever servicing the unit. Repairs and maintenance should be performed by a qualified service technician. The appliance should be inspected annually by a qualified service technician. Verify proper operation after servicing.
  • Page 12: Error Codes

    The Rinnai water heater has the ability to check its own operation continuously. If a fault occurs, an error code will flash on the display of the temperature controller. This assists with diagnosing the fault and may enable you to overcome a problem without a service call. Please identify the code displayed when inquiring about service.
  • Page 13 Code Fault Thermal Fuse Over Temperature Warning Burner Sensor Error Outgoing Water Temperature Sensor Fault Heat Exchanger Outgoing Temperature Sensor Fault Combustion Air Temperature Sensor Fault Modulating Solenoid Valve Signal Abnormal Combustion Fan Failure Water Flow Control Fault Solenoid Valve Circuit Fault Flame Sensing Device Fault...
  • Page 14: Trouble Shooting For Common Issues

    Off” button press the ▲ button. The last 9 error codes will flash one after the other. To exit this mode press the “On/Off” and ▲ button as before. To display the water flow through the water heater press and hold the ▲ button for 2 seconds and without releasing the ▲ button press the “On/Off” button.
  • Page 15: Flushing The Heat Exchanger (Error Code: Lc Or 00)

    Open both service valves (V1 and V2) on the hot water and cold water lines. Operate the pump and allow the cleaning solution to circulate through the water heater for 1 hour at a rate of 4 gallons per minute (.15.1 liters per minute.
  • Page 16: Installation Instructions

    RL94e ... REU-VB2735WD-US R98LSe ... REU-VA3237W-US R98LSe-ASME ... REU-VA3237W-ASME The VB series (RL75e and RL94e) are certified for installation in manufactured (mobile) homes. • The appliance must be isolated from the gas supply piping system by closing its individual manual...
  • Page 17: Clearances From Appliance

    Error Indication or Air Handler Control Switch (RL75e and RL94e only) When using the Rinnai water heater with an Error Indication Switch, dip switch No. 4 in the bank of 8 switches should be in the off position. This is the default position.
  • Page 18: Electrical Connection

    • Check the type of gas and the gas inlet pressure before connecting the Rinnai water heater. If the Rinnai water heater is not of the gas type that the building is supplied with, DO NOT connect the water heater. Contact the dealer for the proper unit to match the gas type.
  • Page 19: Pipe Sizing Procedure - Example

    Gas Piping Pipe Sizing Procedure - Example 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.
  • Page 20: Water Piping

    Water Piping Isolation Valves and Pressure Relief Valve (RL75e and RL94e) The isolation valves provide the ability to isolate the water heater from the structure’s plumbing and allow quick access to flush the heat exchanger. Check with local codes to determine if a pressure and temperature relief valve is required.
  • Page 21: General Instructions

    • Ensure that the water filter on the Rinnai water heater is clean and installed. • The relief valve should be added to the hot water outlet line and near the hot water outlet according to the manufacturer’s instructions.
  • Page 22: Freeze Protection

    If the water heater is not going to be used during a period of possible freezing weather, it is recommended that the water inside the water heater be drained.
  • Page 23: Freeze Protection Piping

    In the event of a power failure at temperatures below freezing the water heater should be drained of all water to prevent freezing damage. The unit may be drained manually. However, Rinnai highly recommends that drain down solenoid valves be installed that will automatically drain the unit if power is lost.
  • Page 24: Recommended Piping For Basic Installation

    3/4" Ball Valve 3/4" Union Check Valve Pressure Relief Valve Rinnai Water Heater This is not an engineered drawing. It is intended only as a guide and not as a replacement for professionally engineered project drawings. This drawing is not intended to describe a complete system. It is up to the...
  • Page 25: Recommended Piping For Circulation Systems

    Pump to be of bronze or stainless construction. IMPORTANT: Connect the building return line to the hot water supply line as close as possible to the Rinnai Water Heater. 3/4" Ball Valve 3/4" Union Check Valve Pressure Relief Valve...
  • Page 26: Flue Terminal Clearances (Ans Z21.10.3, Csa 4.3 )

    Flue Terminal Clearances ( ANS Z21.10.3, CSA 4.3) VB Series Outdoor LS Manual...
  • Page 27 Flue Terminal Clearances ( ANS Z21.10.3, CSA 4.3) VB Series Outdoor LS Manual...
  • Page 28: Additional Clearances

    12" (0.30 m) to an inside corner INSIDE CORNER (0.91 m) to ventilated or unventilated soffit or eve vent; or 36" to a deck or porch 2" (50 mm) between Rinnai terminals at same level VB Series Outdoor LS Manual...
  • Page 29: Connecting Multiple Water Heaters

    Connecting Multiple Water Heaters The EZConnect™ cable is an optional accessory that connects 2 water heaters and allows them to function as one hot water source. The MSA-2M and MSA-2S packs are optional accessories that connect 2 to 5 water heaters and allow them to function as one hot water source.
  • Page 30: High Altitude Installations

    1. Turn off the power source and gas supply to the water heater / Coupez l`alimentation de gaz et électrique. 2. Remove the front cover from the water heater/ Enlever la couverture de devant du chauffe-eau.
  • Page 31: Temperature Controller Installation Location

    Configurations A maximum of 4 temperature controllers, including wired and wireless, can be installed for a water heater or bank of water heaters. Controllers can only be wired in parallel. Controllers cannot be wired in series.
  • Page 32: Mounting The Controller

    2. 7. Disconnect the power from the Rinnai water heater. 8. Remove the cover of the Rinnai water heater. 9. Remove the plastic cover from the PCB and electrical connections. 10. Thread the cable through the access hole at...
  • Page 33: Operating Instructions

    Operating Instructions FOR YOUR SAFETY READ BEFORE OPERATING WARNING 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. BEFORE OPERATING smell all around the appliance area for gas.
  • Page 34: Technical Data

    Pressure Drop Curve Outlet Flow Data 10.0 RL94e RL75e Technical Data Water Flow (gpm) R98LSe delta T - Temperature Rise (ºF) VB Series Outdoor LS Manual...
  • Page 35: Space Heating

    Iron Components Do not use Rinnai water heaters directly for space heating applications involving iron radiators or applications with any iron components. Iron components may oxidize creating rust that will clog the inlet filter of the Rinnai water heater. VB Series Outdoor LS Manual...
  • Page 36: Dimensions

    Dimensions RL75e, RL94e DESCRIPTION Width Depth Height - Unit Height - with brackets Hot Water Outlet - from wall Hot Water Outlet - from center Cold Water Inlet - from wall Cold Water Inlet - from center Gas Connection - from wall...
  • Page 37: Ladder Diagrams

    Ladder Diagram (for RL75e and RL94e) VB Series Outdoor LS Manual...
  • Page 38: Ladder Diagrams

    Ladder Diagram (for R98LSe and R98LSe-ASME) 3A(FUSE) ARRESTER VARISTOR WATERFLOW SENSOR WATERFLOW CONTROL DEVICE BY-PASSFLOW CONTROL DEVICE BY-PASS SERVO MODEL ONLY THERMAL FUSE OVERHEAT SWITCH INDOOR MODEL ONLY FROST SENSING SWITCH VARISTOR RELAY 1 SWITCHING POWER SUPPLY DC12V DC170V DC40V DC12.6V DC5V WATERFLOW...
  • Page 39: Consumer Support

    (except when an MCC-91 is used with a Rinnai Hydronic Air Handler). The integrated controller on indoor models has a 1 year warranty on parts. † Note: Period of coverage is reduced to 3 years from date of purchase if the Rinnai water heater temperature setting exceeds 160º F (71º C).
  • Page 40: Limited Warranty

    Replacement of the product may be authorized by Rinnai only. Rinnai does not authorize any person or company to assume for it any obligation or liability in connection with the replacement of the product. If Rinnai determines that repair of a product is not possible, Rinnai will replace the product with a comparable product at Rinnai’s discretion.
  • Page 41: State Regulations

    NOTICE BEFORE INSTALLATION Rinnai direct-vent appliance must be installed by a state qualified or licensed contractor and a properly trained Rinnai Installer. If you are not properly trained, you must not install this unit. IMPORTANT: In the State of Massachusetts (248 CMR 4.00 & 5.00)
  • Page 42: French Version

    Chauffe-eau d'extérieur sans réservoir Manuel d'installation et d'utilisation RL75e ... REU-VB2528WD-US RL94e ... REU-VB2735WD-US R98LSe ... REU-VA3237W-US R98LSe-ASME ... REU-VA3237W-ASME Enregistrer votre produit à www.rinnairegistration.com ou l'appel 1-866-RINNAI1 (746-6241) INSTALLATEUR : Laissez ce manuel avec l'appareil installé. CONSOMMATEUR : Conservez ce manuel comme référence ultérieure.
  • Page 43: Instructions D'utilisation

    Rinnai est prêt à fournir de l'eau chaude. La préséance d'un contrôleur sur les autres ne peut se modifier que s'il n'y a pas d'eau chaude qui coule.
  • Page 44: Plages De Température Avec Un Contrôleur De Temperature

    125º F (51º le C) peut causer des brûlures ou scalding sévère. Se référer à l'Alerte de Danger sur les températures d'eau. Rinnai ne fait pas, en tout cas, être responsable des dommages qui résultent de tel usage impropre ou tel mauvais usage.
  • Page 45: Entretien

    Entretien AVERTISSEMENT Coupez l'alimentation électrique, et fermez l'arrivée de gaz et d'eau à leur vanne de coupure manuelle avant toute intervention sur l'unité. Les réparations ne doivent être effectuées que par un technicien de service qualifié. Cet appareil doit être inspecté annuellement par un technicien de service qualifié.
  • Page 46: Instructions Générales

    RL75e ... REU-VB2528WD-US RL94e ... REU-VB2735WD-US R98LSe ... REU-VA3237W-US R98LSe-ASME ... REU-VA3237W-ASME La série VB (RL75e et RL94e) est certifiée pour l'installation à domicile (mobile) fabriqués. • L'appareil doit être isolé du système de conduite d'alimentation en gaz en fermant sa vanne individuelle de coupure durant les essais du système en pression...
  • Page 47: Écartements Par Rapport À L'appareil

    Écartements par rapport à l'appareil Jusqu'à matières combustibles Dessus du 12 pouces chauffe-eau (305 mm) Arrière du chauffe-eau (zero) Le devant 24 pouces (le Panneau) (610 mm) Le devant 24 pouces (l'Echappemen (610 mm) Côtés du 6 pouces chauffe-eau (152 mm) Par rapport au 12 pouces plancher/sol...
  • Page 48: Raccordement Électrique

    Raccordement électrique Le chauffe-eau doit être électriquement relié à la terre en conformité avec les normes locales et, en leur absence, avec la plus récente édition de la norme électrique américaine, ANSI/NFPA 70. Au Canada tout câblage électrique doit être en conformité avec les normes locales et la norme électrique canadienne, CSA C22.1 Partie 1.
  • Page 49: Installation À Altitude Élevée

    Une vanne manuelle de coupure de gaz doit être placée sur la conduite d'alimentation en gaz en amont du chauffe -eau Rinnai. Un raccord union peut être utilisé sur la connexion au-dessus de la vanne de coupure pour pouvoir ultérieurement intervenir sur l'unité en la déconnectant.
  • Page 50: Tuyauterie D'eau

    Tuyauterie d'eau Valve à Bille / Valve de dégagement de pression (RL75e, RL94e) Les soupapes d'isolement offrent la possibilité d'isoler le chauffe-eau de la structure plomberie et de permettre un accès rapide à vider l'échangeur de chaleur. Vérifiez auprès des codes locaux pour déterminer si une soupape de pression et de température est nécessaire.
  • Page 51: Qualité De L'eau

    être connecté à un appareil utilisé auparavant comme chauffage et fourniture d’eau non potable. • Le filtre d’eau du chauffage Rinnai dout être propre et installé. • La soupape de sûreté doit être actionnée manuellement au moins une fois par an pour vérifier qu'elle est toujours fonctionnelle.
  • Page 52: Espacements Pour Terminaisons De Cheminée (Ansi Z21.10.3, Csa 4.3)

    Espacements pour terminaisons de cheminée (ANS Z21.10.3, CSA 4.3) Manuel – Chauffe-eau d’extérieur série VB LS...
  • Page 53 Espacements pour terminaisons de cheminée (ANS Z21.10.3, CSA 4.3) Manuel – Chauffe-eau d’extérieur série VB LS...
  • Page 54: Tuyauterie Recommandée Pour Installation De Base

    Électrovanne with local building officials before installation. Manuel – Chauffe-eau d’extérieur série VB LS Liste d'équipement Rinnai Rinnai Equipment List Chauffe-eau Rinnai Rinnai Water Heaters Kit RIK (optionnel) (raccords 3/4 po (19 mm) RIK-KIT (Optional) comprenant : (3/4" Fittings Include: 2 unions, 2 vannes à...
  • Page 55: Instructions D'utilisation

    Instructions d'utilisation À LIRE AVANT LA MISE EN SERVICE POUR VOTRE SÉCURITÉ AVERTISSEMENT Cet appareil ne comporte pas de veilleuse. Il est muni d’un dispositif d’allumage qui allume automatiquement le brûleur. Ne tentez pas d’allumer le brûleur manuellement. AVANT DE FAIRE FONCTIONNER, reniflez tout autour de l’appareil pour déceler une odeur de gaz.
  • Page 56: Diagramme En Escalier

    Diagramme en escalier (RL75e, RL94e) FUSIBLE 3 A (intérieur) FUSIBLE 5 A (extérieur) ANTI-FOUDRE TERRE DÉTECTEUR D'ÉCOULEMENT FUS THER. MODÈLE D'INTÉRIEUR UNIQUEMENT PHASE CONTACT DE DÉTECTION DE GEL VARISTOR VARISTOR RELAIS 1 ALIMENTATION À DÉCOUPAGE 12 V CC 170 V CC...
  • Page 57 Diagramme en escalier (R98LSe, R98LSeASME) FUSIBLE 3 A (intérieur) FUSIBLE 5 A 3A(FUSE) (extérieur) ANTI-FOUDRE ARRESTER VARISTOR VARISTOR TERRE DÉTECTEUR WATERFLOW D'ÉCOULEMENT SENSOR DISPOSITIF DE WATERFLOW CONTRÔLE D'É- CONTROL DEVICE COULEMENT CIRCUIT DE CONTRÔLE BY-PASSFLOW D'ÉCOULEMENT DE CONTROL DEVICE DÉRIVATION MODÈLE DE DÉVIATION SEULEMENT BY-PASS SERVOMODEL ONLY FUS THER.
  • Page 58: Support À La Clientele / Garantie Limitée

    L'utilisation d'un contrôleur MCC-91 dans une habitation résidentielle réduira la couverture de garantie au niveau de la garantie pour une application commerciale † Note : La période de garantie est réduite à 3 ans à partir de la date d'achat si le réglage de température du chauffe-eau Rinnai dépasse 160°F (71 °C).
  • Page 59 Rinnai le remplacera par un produit comparable, à sa discrétion. Si un composant ou un produit retourné à Rinnai est trouvé sans défaut du aux matériaux ou à la main d'œuvre, ou qu'il est déterminé qu'il a été...
  • Page 60 VB2528 W VB2735 W VA3237 W U287-1932 (00) Printed in Japan 060 00012 30660 6...

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