USER’S INFORMATION MANUAL I-Series Condensing Boiler Wall-Mounted, Gas-Fired Combi Boiler Central Heating and Domestic Hot Water COMBI MODELS i060C (REB-A1847FF-US) i090C (REB-A2647FF-US) i120C (REB-A3558FF-US) Certified to ANSI Z21.13 and CSA 4.9 WARNING If the information in these instructions are not followed exactly, a fire or explosion may result causing property damage, personal injury, or death.
1. Safety 1.1 Safety Symbols 1.2 Safety Precautions 1.3 Gas Operating Instructions 2. About the Boiler 2.1 Front View 2.2 Bottom View 2.3 Control Panel 2.3.1 Control Panel Features 2.3.2 Display Window 2.3.3 Pressure and Temperature Display 3. Operating the Boiler 3.1 Turning the Boiler On or Off 3.2 Change Units of Measurement 3.3 Change Control Panel Sounds 3.4 Change Child Lock Function 3.5 Adjust the DHW Temperature 3.5.1 Sequence of Operation for DHW Temperature 3.5.2 Setting DHW Comfort Modes 3.
1 WARNING If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal injury, or death. This manual contains the following important safety symbols. Always read and obey all safety messages. Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. Safety alert symbol. Alerts you to potential hazards that can kill or hurt you and others.
Please read and follow the safety precautions listed below. DANGER WARNING Should overheating occur or the gas supply fail to shut off, do not turn off or disconnect the electrical supply to the pump. Instead, shut off the gas supply at a location external to the appliance. Gas shut off valve Visually inspect the entire exhaust vent and intake system. Look closely for blockages, deterioration, leaks or any other type of damage to the system. Repair any joints that show signs of leakage.
WARNING Check the water pressure in the central heating installation regularly. See the “Rinnai I-Series Condensing Boiler Installation and Operation Manual” for specific glycols, inhibitors, and system cleaners permitted. Contact your installer in case of doubt. Do not use this boiler if any part has been under water. Immediately call a qualified service technician to inspect the boiler and to replace any part of the control system and any gas control which has been under water.
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. 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. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.
5 2 The I-Series Condensing Boiler is a wall-mounted, gas-fired boiler designed to providing heating and domestic hot water. For complete boiler information, refer to the “Rinnai I-Series Condensing Boiler Installation Manual” supplied with the boiler, or visit rinnai.us.
All items are field-supplied unless otherwise noted.
❽ ❶ ❼ MODE ❷ ❸ Eco ❾ ❹ ❿ ❺ ❻ ❶ MODE Selects various boiler settings. ❹ ❷ Up/Down Arrows Scrolls through available menu options including adjusting the temperature. ❸ Eco Selects Eco or Comfort operation mode. Central Heating (CH) From the factory, this option is turned off by default. The boiler runs off thermostat inputs on the control board. For any adjustments, contact a trained and qualified professional for setting assistance.
When the boiler is turned on, the main screen (also called the home screen) appears in the display. ❶ ❷ ❸ ❹ ❺ ⓫ ❻ ❼ ❿ ❽ ❾ ❶ Maintenance Mode Icon Appears when the boiler is in Parameter Settings Mode, Deaeration Mode, Performance Data Mode, Error History Mode, etc. ❷ Unit of Measurement for Temperature ❽ Unit of Measurement for Pressure Note: Pressure and temperature are alternately displayed on the controller.
The boiler will display the current pressure or temperature as shown below. If the boiler is in standby and the CH ON and DHW ON buttons are not illuminated, the current system pressure will display. When the boiler is in CH operation and CH standby (CH icon is displayed), the current pressure and the CH supply temperature will alternately display.
3 This section includes instructions for starting and operating the boiler. WARNING Do not use an extension cord or adapter plug with this appliance. Connect power to the boiler by plugging it into a power outlet. The controller will light up and is now ready to be set for DHW and/or CH.
To change the units of measurement appearing on the boiler display, follow the steps below. To turn the control panel click sound on or off, follow the steps below. Press the Mode button. Press the Mode button twice. should appear on the display. Press the Up or Down arrows to select ON or OFF. Press the Up or Down arrows to select a unit. F = U.S. Measurements (°F/PSI) C = Metric (°C/bar) Press the Select button. Press the Select button.
To turn the child lock function on or off, follow the steps below. NOTE When Child Lock is enabled, the only function available is to turn off Central Heating (by pressing the Central Heating button on the controller); this occurs only if DIP switch 2 is set to the ON position. See the “DIP Switches” section in the “Rinnai I-Series Condensing Boiler Installation and Operation Manual” for more information.
To adjust the DHW setpoint temperature, follow the steps below. Pri. ° LED If the LED above the DHW button is not illuminated, press the DHW button. Adjust the temperature with the UP and DOWN arrows until the appropriate temperature is displayed. If the LED above the DHW button is illuminated, proceed to Step 2. Pri. ° Pri. Press the Select button to confirm the temperature. Press the Switch Operation Mode button until the DHW Active icon appears on the home screen.
The available DHW set point temperatures are provided below. When the unit of measurement changes (°C/°F), the corresponding temperature in the table changes. Factory Default: 104°F (40°C) The factory default maximum temperature is limited to 120°F. To select temperatures above 120°F (49°C), the DHW Maximum Setpoint Temperature will need to be adjusted. Please refer to the “Rinnai I-Series Condensing Boiler Installation and Operation Manual” for further details.
IMPORTANT While any hot water is being provided, the temperature setting can only be adjusted between 98°F and 110°F. (37°C and 43°C) Check local codes for the maximum water temperature setting allowed when used in nursing homes, schools, day care centers, and all other public applications. If a newly installed boiler with a controller has not been powered for at least six hours, the temperature will return to the default setting of 104°F (40°C).
Domestic Hot Water Comfort Modes are settings that would either supply quicker delivery of hot water to fixtures or save energy in the boiler operation. By default, Eco mode is enabled (turned on). To enable (turn on) comfort mode, press the Eco button on the controller. Eco Mode (Default) Comfort Mode The boiler operates and produces hot water; however, it will not maintain the primary heat exchanger temperature for quicker hot water production.
To adjust the CH setpoint temperature, follow the steps below. ° IMPORTANT When outdoor reset control activates, the target supply temperature for the CH system will not follow the CH setting temperature. When the temperature flashes on the screen, the CH temperature setting has been set and is the active temperature. This temperature setting is displayed for a few seconds and then returns to standby mode.
WARNING Only adjust the target setpoint temperature of the system by consulting with the installer of the system or other qualified professional. If the target setpoint temperature is adjusted too high for the heat emitters in use, property damage may occur. The CH target setpoint temperature can be set in 2°F (1°C) increments between 104°F-180°F (40°C-82°C). Factory Default: 140°F (60°C) Below are some typical target setpoint temperatures for various heat emitters.
° The boiler can operate in either of two settings: A room thermostat The CH button being activated Below is the sequence of operations for starting central heating via the room thermostat: In room thermostat mode, the CH button does not affect heating operation. Operation is only possible with a call for heat from the room thermostat. ° When the boiler ignites, the In Use icon is illuminated.
If the boiler installer selected to begin central heating by pressing the CH button, below are the sequence of operations appearing on the controller: ° When the boiler ignites, the In Use icon is illuminated. Press the CH button to begin operating the CH system. ° Press the CH button again to stop CH operation. The boiler will cycle ON/OFF based on the temperature water the boiler observes. The CH Active icon is displayed and the LED above the CH button is illuminated.
4 WARNING Consumers should never attempt any action that they are not qualified to perform. If you believe the boiler is not operating as designed, check possible reasons from the list below. If an Error Diagnostic Code appears, contact a local Service Provider. DHW Check that the gas is turned on at the boiler, gas meter, or cylinder.
Is the target setpoint temperature of central heating appropriate for your application? (Refer to the “Target Setpoint Temperatures” table in section 3.6 of this manual.) Central Heating When an outdoor sensor control is used, the supply temperature for central heating will vary depending on the outdoor temperature. To change the setting, contact your dealer. The room temperature is not When using DHW with priority setting ON, central heating may be getting warm. in standby.
When the boiler detects an error or unexpected performance, a diagnostic code will display on the controller and a beeping sound will generate. Contact a qualified service provider whenever a diagnostic code shuts down the boiler.
To reset a diagnostic code, either the Central Heating or Domestic Hot Water button will be blinking. Press this button to reset the code. Notes: Diagnostic codes that occur during DHW operation may reset by turning off water flow from the fixture temporarily. Some diagnostic codes may not reset by pressing the CH or DHW buttons. In these cases, contact your service provider for troubleshooting assistance.
5 WARNING Maintenance is required to maintain safe operation of the boiler. The boiler must be inspected annually by a licensed professional. Repairs and maintenance shall be performed by a licensed professional. The licensed professional must verify proper operation after servicing. Keep the boiler area clear and free from combustible materials, gasoline, and other flammable vapors and liquids.
Freeze Protection Operation When the boiler detects low outdoor ambient temperatures, the boiler will begin its freeze protection operation. The freeze protection operation can protect the boiler from freezing down to as low as –22°F (-30° C) outdoor temperature. When freeze protection is in operation, the pump may circulate water and/or the boiler may operate to prevent the boiler from freezing. Ensure power and gas are supplied to the boiler for freeze protection to function.
Rinnai I-Series Condensing Combi Boiler User’s Information Manual 29
Rinnai I-Series Condensing Combi Boiler User’s Information Manual
Rinnai I-Series Condensing Combi Boiler User’s Information Manual 31
800000114 3/2019 32 Rinnai I-Series Condensing Combi Boiler User’s Information Manual