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Summary of Contents for Rinnai Infinity N32i
- Page 1 Indoor models: Outdoor models: Infinity N32i (REU-N3237FFC-E) Infinity N32e (REU-N3237WC-E) Infinity N26i (REU-N2635FFC-E) Infinity N26e (REU-N2635WC-E) Instantaneous condensing water heaters Operation and installation manual...
- Page 2 Quality system standard ISO 9001 The design, development and manufacture of gas water heating appliances done under Rinnai’s quality management system is certified under the quality management system Standard ISO 9001. Certified by: Japan Gas Appliances Inspection Association - JIA-QA Center...
- Page 3 Dear Customer, our compliments for having chosen a Rinnai top-quality product, able to assure well-being and safety for a long period of time. As a Rinnai Customer you can also count on a qualified after-sales service to guarantee a constant efficiency of Your appliance.
- Page 4 WARRANTY Dear Customer, Our compliments for having chosen a Rinnai product. The standard Rinnai warranty does not affect the terms of the legal warranty on customer’s good and relates to Rinnai products purchased. WHAT IS COVERED? The warranty covers any defects in materials or workmanship when the product is installed and operated according to Rinnai installation instructions, subject to the terms within this limited warranty document.
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Page 5: Table Of Contents
CONTENTS 1. USER’S INSTRUCTIONS ..........................7 1.1 FEATURES AND BENEFITS ........................8 1.2 IMPORTANT SAFETY INFORMATION ....................... 9 1.3 OPERATION ............................. 11 1.3.1 SELECTABLE TEMPERATURES ....................12 1.3.2 OPERATION WITH THE STANDARD CONTROL PANEL ............12 1.3.3 OPERATION WITH MULTIPLE CONTROL PANELS ..............13 1.3.4 OPERATIONAL SAFETY INFORMATION .................. - Page 6 3.5 WATER FLOW CHART ..........................46 3.6 FLOW CHART ............................47 3.7 WIRING DIAGRAM AND DIAGNOSTIC POINTS ..................48 3.8 MAINTENANCE ............................49 3.8.1 CLEANING AND INSPECTING THE AIR FILTER ............... 49 3.8.2 FLUSHING THE HEAT EXCHANGER ..................50 3.8.3 MANUAL DRAINING OF THE WATER HEATER ................. 51 3.8.4 MAINTENANCE INDICATOR ......................
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Page 7: User's Instructions
1. USER’S INSTRUCTIONS The following section provides instructions for a proper use of the product. This section is intended for the use by qualified technical personnel and end users. -
Page 8: Features And Benefits
-20°C for outdoor and indoor units. Rinnai Infinity SENSEI Series water heater is provided by a CHECK VALVE between the fan and the burner body, for greater safety and better anti-frost protection. -
Page 9: Important Safety Information
Rinnai technical service centre. Use original Rinnai parts to repair the appliance. In case of unusual noise, vibration or smell, stop the appliance and contact the Rinnai service for further information If you smell gas: - isolate the main gas supply;... - Page 10 Hot water at 60°C can severely burn a child in less than a second. At 50°C it takes five minutes. Always test the temperature of the water before any use. To prevent these risks, Rinnai reccomends to consider setting your hot water production at a maximum temperature of 50°C.
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Page 11: Operation
1.3 OPERATION The Rinnai water heater is able to supply hot water at a constant temperature, making sudden changes that result from the simultaneous use of several users or from variations in the temperature of the cold water used to feed the appliance (pre-heated water from solar panels, etc). -
Page 12: Selectable Temperatures
The appliance is set at the factory to allow the selection of a maximum temperature of 50°C. This limit is generally more than adequate for most of the domestic uses, but it is possible to modify it according to your needs. A Rinnai specialized technician can modify the device electronics by modifying the maximum allowed temperature, bringing it to a higher value or limiting it further. -
Page 13: Operation With Multiple Control Panels
Adjusting temperature Select the desired temperature using the hot water temp buttons until the required temperature is displayed on the digital monitor. To operate the hot water unit, open any hot water tap: the appliance will control the temperature and turn on the burner only if it is necessary to heat it. -
Page 14: Operational Safety Information
1.3.4 OPERATIONAL SAFETY INFORMATION The following instructions and recommendations describe some important features of the operation of the appliance. This appliance is not intended for use by persons with reduced physical, sensory or mental abilities, or lack of experience and knowledge, unless they are supervised or instructed on the use of the appliance by a person responsible for their safety. -
Page 15: Trouble Shooting
1.4 TROUBLE SHOOTING Rinnai products are all equipped with a self-diagnosis system: in case of failure, an error code appears on the control panel display and fl ashes. This function can be very useful for diagnosing the problem and tracing the causes, avoiding, where possible, the need for an external intervention by an authorized Rinnai technician. -
Page 16: Error Codes
Maintenance Indicator Rinnai service performed maintenance. Verify you have at least the minumum flow rate required to fire unit. Nothing happens when water flow is activated Clean inlet water supply filter. -
Page 17: Maintenance
You with the best service on Rinnai products. It is recommended to write down the model and serial number of the appliance before contacting Rinnai: this information will help us to frame the problem faster and to guarantee You a better service. -
Page 19: Installer's Instructions
2. INSTALLER’S INSTRUCTIONS The following section provides specific instructions for the proper installation of the product. This section is intended for the use by qualified technical personnel. -
Page 20: Installation Warnings
Under the current law, the systems must be held by qualified professionals. Rinnai Infinity SENSEI Series are designed as gas continuous water heaters with temperature and flow control. The appliance must be installed on the wall, electrically powered, connected to the gas line, to the sanitary installation and to a suitable discharge point to drain the condensate. -
Page 21: Unpacking The Water Heater
2.2 UNPACKING THE WATER HEATER Before installation, check that the product is prepared for the type of gas used and that it is free of damage. If you find any damage to the appliance, do not proceed with the installation: contact the retailer immediately. The following accessories are supplied inside the packaging, together with the appliance and this instruction manual: (5 x ) Screws and wall Standard remote... -
Page 22: Dimensions
2.4 DIMENSIONS 17.8 157.5 4-Ø13HOLE 240.8 PRESSURE RELIEF VALVE COLD WATER INLET HOT WATER OUTLET CONDENSATE OUTLET GAS CONNECTION DIMENSION CONNECTION R 3/4 45.2 mm 53.7 mm COLD R 3/4 41.2 mm R 3/4 CONDENSATE 23.9 mm R 1/2 OUTLET 129.5 142.2 139.2... -
Page 23: General Scheme And Operation Principles
2.5 GENERAL SCHEME AND OPERATION PRINCIPLES Operation principles Exhaust Exhaust Thermistor Ignitor Ignitor Air Intake Filter Flue Outlet Check Valve Check Valve Burner Combustion Fan Intake Box Combustion Fan Exhaust Thermistor Gas + Air Flame Rod Burner Gas + Air Electrode Flame Rod Venturi Unit... -
Page 24: Installation
Contact Rinnai or your supplier for further instructions. When connecting the water supply pipes, it is recommended to have a valve and a filter on the cold water inlet union, and a valve on the hot water outlet. -
Page 25: Electrical Connection
The flue system type must correspond to one of the many mentioned on the data plate label (located on the side of the appliance). Rinnai provides a specific inlet/exhaust system for the appliance. Detailed installation instructions are supplied with the flue elements. For more information contact Rinnai. - Page 26 Split fl ue: by use of a special fl ue kit adaptor, it is possible to connect the appliance to a split fl ue system (the appliance side of the kit is coaxial (Ø80/125mm); the fl ue side is (Ø80-80mm). The pipes of the split unit must have a minimum internal diameter of 80mm, be made of materials suitable for the appliance’s fl ue gas temperatures and have sealed ‘male/female’...
- Page 27 Main configuation of the flue system: the main type configurations of the flue system are show below. A) DIRECT FLUEING WITH WALL TERMINAL C) HORIZONTAL/VERTICAL EXTENSION FLUEING WITH ROOF TERMINAL FOT-KX080-007 FOT-HX080-009 ** Horizontal ue kit ø80/125 L=750mm Coaxial roof terminal ø80/125 L=480 mm FOT-HX125-012 Lead tile...
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Page 28: Condensate
• should be installed. A condensate neutralizer kit is available from Rinnai. The kit allows condensate to fl ow through neutralizing • media that raises the pH of the condensate to a level that will help prevent corrosion of the drain and public sewer system. -
Page 29: Condensate Pump Safety Switch Wiring
2.7.3 CONDENSATE PUMP SAFETY SWITCH WIRING The steps in this section must conform with local codes. IMPORTANT The condensate pump (if installed) should be wired to deactivate the water heater in the event the condensate pump fails. NOTE Disconnect power from the water heater. Open the water heater cover and locate 2 white wires labeled “To condensate pump safety switch.”... -
Page 30: Remote Controller
2.8 REMOTE CONTROLLER A standard remote controller (MC-601) is supplied as a standard together with any outdoor model water heater. The indoor models are supplied with a non-removable controller on the front panel. However, it is possible to add up to three additional remote controllers on both product ranges (outdoor and indoor), to be able to adjust the temperature of the hot water from different areas. -
Page 31: Standard Remote Controller (Mc-601) Installation
Installation procedure (appliance side): DO NOT attempt to connect cables to the water heater unless the electric power is switched ‘off ’ otherwise damage to electrical components may occur. CAUTION Isolate the electric power supply by switching the power point off and removing the power plug of the water heater from the electric power socket;... -
Page 32: Control Panel Programming
2.9 CONTROL PANEL PROGRAMMING Are there four control panels connected (control panel + remote controllers)? QUESTION If there are up to 3 control panels connected, go to question 2. YES: You need to activate the fourth controller as follows: STEP 1: On the ‘Master’ controller only, press and hold the ‘Priority’ and ‘On/Off’ buttons simultaneously (see Fig. -
Page 33: Cascade Communication
Connecting multiple water heaters The use of cascade cables allows the installation up to 24 Rinnai Infi nity SENSEI Series in cascade and the electronic management of capacities in cascade, balancing the fl ow rate between the units in any operating situation. -
Page 34: Programming Cascade Communication
2.10.2 PROGRAMMING CASCADE COMMUNICATION Parameter Setting Refer to the parameter setting section of this manual for instructions on how to access and change parameter settings. Value Menu Cascade Secondary Primary identify water heater Cascade units in stanby 07 Cascade indetify water heater: Primary: select the water heater intended to be the Primary water heater for cascade communication. -
Page 35: Recirculation Mode
2.11 RECIRCULATION MODE The Rinnai Infi nity SENSEI Series water heater has the ability to control a recirculation pump (optional), with a connection cable supplied separately. With this optional mode is possible recirculate the water in the plumbing system to provide hot water quickly when a tap is opened. -
Page 36: Sequence Of Operation
The Rinnai water heater should be turned on. Pump recirculation begins when the water heater is turned on. The Rinnai inlet and outlet thermistors measure the water temperature. The water heater produces hot water at the temperature setting. If the inlet thermistor detects abnormal temperature then diagnostic code 51 is generated and the pump will turn off. -
Page 37: Commissioning
The gas regulator on the appliance is electronically controlled and factory pre-set: it DOES NOT need any adjustment during installation. WARNING Prior to making any changes, contact Rinnai. • Close the hot water taps including the shower. Inspect and clean the strainer located on the cold water inlet connection. This procedure may need to be repeated •... -
Page 39: Maintenance Instructions
3. MAINTENANCE INSTRUCTIONS The following section provides specific instructions for proper maintenance of the product. This section is intended for the use by qualified technical personnel. -
Page 40: Pcb Interface Layout And Functions
3.1 PCB INTERFACE LAYOUT AND FUNCTIONS Operation of the PCB interface To adjust the parameters into the PC Board follow this procedure: 1. Locate the PC Board (lower right side of unit). 2. Locate the two push button (A and B) on the PC Board. -
Page 41: Service Indicator
This parameter selects the maximum temperature and the fi xed temperature, as shown in the table below: Nr. 01 Nr. 02 Without controller With controller Without controller With controller Fixed temperature Max temperature Fixed temperature Max temperature 55°C 55°C 55°C 55°C 75°C 75°C... -
Page 42: Gas Conversion
3.2 GAS CONVERSION Only qualifi ed professionals are authorized to carry out the operations described. The product warranty does not cover any alterations due to non-qualifi ed personnel. IMPORTANT The min and max gas operating pressures are factory pre-set: under normal circumstances any adjustment is not required during installation. -
Page 43: Air Intake Pipe Replacement
3.2.3 AIR INTAKE PIPE REPLACEMENT This paragraph is only for the conversion to propane air (G230) To convert to other gas (G20, G30, G31), go directly to the next paragraph. WARNING The conversion to Air/Propane (G230) also requires the replacement of the air intake pipe. Connector Disconnect connectors indicated in Fig. -
Page 44: Data Transfer Between Pcb's
3.3 DATA TRANSFER BETWEEN PCB’S If a new PCB needs replacing, you can transfer data (gas type, model type, gas pressure and error history) from the existing PCB to the new one by doing the following. Item necessary New PCB •... -
Page 45: Performance Data
3.4 PERFORMANCE DATA With the control panel is possible display the performance data DATA UNIT of water heater. Water Flow Data x 0,1 l/min °C The display shows a progressive number from 01 to 21, Outgoing Temperature alternating with the performance data. Each number Combustion Hours 100 hours corresponds to a function, indicated in the table on the side. -
Page 46: Water Flow Chart
3.5 WATER FLOW CHART Water pressure - flow diagram Bypass servo Full Close: N26 - Bypass servo Full Open: N32 - Bypass servo Full Open: Tset 65°C Tset 37°C Tset 37°C Water pressure [kPa] Temperature rise - Water flow rate diagram ∆T [°C]... -
Page 47: Flow Chart
3.6 FLOW CHART... -
Page 48: Wiring Diagram And Diagnostic Points
3.7 WIRING DIAGRAM AND DIAGNOSTIC POINTS MEASUREMENT POINT COMPONENT RANGE OF VALUE CN/Con.re WIRE COLOUR MAIN POWER BR-BL 198 - 264 V FLAME ROD Y-BODY(GND) more then 2 V (while trying to ignite) IGNITER R-BK 11 - 14 V (in operation) R-BK 7 - 48 V (in operation) W-BK... -
Page 49: Maintenance
The appliance must be inspected, repaired and maintained by a licensed professional. The licensed professional must verify proper operation after servicing. For more detailed instructions on maintenance contact Rinnai or your supplier. Cleaning It is imperative that control compartments, burners, and circulating air passageways of the appliance be kept clean. -
Page 50: Flushing The Heat Exchanger
Damage caused by lime build-up is not covered by the water heater’s warranty. Rinnai strongly recommends installation of isolation valves to allow for flushing of the heat exchanger. Bypass servo is normally open. -
Page 51: Manual Draining Of The Water Heater
3.8.3 MANUAL DRAINING OF THE WATER HEATER 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. To manually drain the water: Shut off cold water supply and gas supply. -
Page 52: Technical Data
3.9 TECHNICAL DATA Model REU-N2635FFC REU-N2635WC Unit Condensing instantaneous water heater Appliance type with automatic output variation Installation Internal External G20 Nat Gas min gas pression -0.10 mbar G230 Air/Propane min gas pression -0.10 mbar G30 Butane min gas pression -0.10 mbar G31 Propane min gas pression... - Page 53 Model REU-N3237FFC REU-N3237WC Condensing instantaneous water heater with automatic Appliance type output variation Installation Internal External G20 Nat Gas min gas pression -0.10 mbar G230 Air/Propane min gas pression -0.10 mbar G30 Butane min gas pression -0.10 mbar G31 Propane min gas pression -0.10 mbar Flue system...
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Page 54: Product Fiche
3.10 PRODUCT FICHE Unit Supplier’s name Rinnai Italia srl Supplier’s model REU-N2635FFC-E REU-N2635WC-E Load profile Water heating energy efficiency class Water heating energy efficiency (ƞ 86.9 86.9 Annual electricity consumption (AEC) kWh/annum Annual fuel consumption (AFC) - (Hs) GJ/annum Temperature setting °C... - Page 56 Via Liguria, 37 41012 - Carpi, Modena Tel: 059 622 9248 e-mail: info@rinnai.it rinnai.it V.1 - 190827 This manual replaces any edition previously published.
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