Rinnai RCB301AN User Manual
  1. Manuals
  2. Brands
  3. Rinnai Manuals
  4. Boiler
  5. RCB301AN
  6. User manual

Rinnai RCB301AN User Manual

Commercial boiler
Hide thumbs Also See for RCB301AN:
Table of Contents

Advertisement

Quick Links

Download this manual

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the RCB301AN and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Rinnai RCB301AN

Summary of Contents for Rinnai RCB301AN

  • Page 2 • Installation and service must be performed by a licensed professional. Copyright 2023 Rinnai America Corporation. Rinnai® is a registered trademark of Rinnai Corporation used under license by Rinnai America Corporation. Rinnai America Corporation continually updates materials, and as such, content is subject to change without notice.

  • Page 3: Table Of Contents

    4.4 Operating Information ....................47 5. Maintenance ........................51 5.1 Owner Maintenance ...................... 51 Thank you for purchasing a Rinnai Commercial Boiler. Before operating this boiler, be sure to read these instructions completely and carefully to familiarize yourself with the boiler’s features and functionality.

  • Page 4: Safety Symbols

    • Always check the water temperature Indicates an imminently hazardous before entering a shower or bath. situation which, if not avoided, will result in personal injury or death. Rinnai Commercial Boiler User Manual...
  • Page 5 It is strongly recommended that you use a should only be removed for service/ trained and qualified professional who has maintenance or replacing internal attended a Rinnai installation training class components. to adjust parameter settings. • BURN HAZARD. Hot exhaust and vent may •...

  • Page 6: Front View

    Specifications • Dimensions • Included Accessories • Optional Accessories The Rinnai Commercial Boiler is a wall- mounted, gas-fired boiler designed to provide heating to the building with the ability to connect an indirect tank for DHW production. Figure 1 Vent...
  • Page 7 Power Switch Figure 4 Right Side Internal (Main Control Hidden) - RCB301AN shown Thermal Fuse Heat Exchanger Return Water Pipe Air/Gas Mixer Condensate Trap Gas Valve with Throttle Screw Low Voltage Terminal Strip Cascade Module Rinnai Commercial Boiler User Manual...
  • Page 8 Manually interrupts the power to the gas valve. The venturi controls the mixture of air and gas before entering Air/Gas Mixer the burner for combustion. Contains connection points for low voltage input and output Low Voltage Terminal Rinnai Commercial Boiler User Manual...
  • Page 9 The location of the sensor should be downstream of the of the boiler connection in the main system loop. DHW Sensor/ Monitors and controls the temperature of an indirect tank. Aquastat Figure 5 Bottom View Webserver Card/ Wi-Fi Module Boiler Name Plate Rinnai Commercial Boiler User Manual...
  • Page 10 0.0 % 0.0 % 7.0 % 7.0% 16.0 % 20.0 % 23.0 % 27.0 % NOTE: The values listed on the above table are the total percentage of boiler input de-rate for each elevation range. Rinnai Commercial Boiler User Manual...
  • Page 11 For altitudes above 2,000 ft (609 m), vent length is reduced to 90 ft (27 m). Maximum gas supply pressure must not exceed the value specified by the manufacturer. Rinnai products are continually being updated and improved; therefore, specifications are subject to change without prior notice. Rinnai Commercial Boiler User Manual...
  • Page 12 Measurements: in. [mm] Figure 6 Bottom view shown on next page. Rinnai Commercial Boiler User Manual...
  • Page 13 1 in. CH In (CH Return) 1-1/4 in. NPT 1-1/4 in. CH Out (CH Supply) 1-1/4 in. NPT 1-1/4 in. Condensate Drain 1 in. NPT 3/4 in. Venting (Intake & Exhaust) 4 in. PVC/CPVC 4 in. Rinnai Commercial Boiler User Manual...
  • Page 14 4.8 X 25 MM SS PANHEAD PH2 • Installation and Operation Manual (TAPPED TO INTAKE ADAPTER) (this manual) • User Manual • Warranty Card • Additional technical literature in- cluded inside product box PART #: 809000304 Rinnai Commercial Boiler User Manual...
  • Page 15 The following optional accessories are available for the Rinnai Commercial Boiler. CONDENSATE NEUTRALIZER AIR INLET FILTER Filters and eliminates debris (> 0.5 mm) Neutralizes the condensate from entering the combustion chamber generated by the boiler. for indirect venting (room air) piping.

  • Page 16: Optional Accessories

    Optional Accessories (Continued) BACNET ADAPTER BACNET ADAPTER WITH LONWORKS To establish boiler communication with Building Management System (BMS) through BACnet. PART #: 803000078 To establish boiler communication with Building Management System (BMS) through LonWorks. PART #: 803000080 Rinnai Commercial Boiler User Manual...

  • Page 17: Start-Up Information

    Above 87 PSI, error code 118 will be present on the controller display. − The maximum pressure permitted inside the heat exchanger is 160 PSI. − The pressure relief valve supplied with the boiler is rated to 75 PSI. Rinnai Commercial Boiler User Manual...
  • Page 18 Table: Home Screen ITEM DESCRIPTION FUNCTION The Rinnai logo will return the user to the home page (shown). This page will RINNAI provide information regarding the boiler operation. This page will allow the user to adjust and customize parameters, such as outdoor SETUP reset curve(s), and others.
  • Page 19 To access the SETUP page, the control will prompt the user to select the access level and enter password. The password for Installer is 9419. The technician and Engineer user levels can ONLY be accessed by a Rinnai employee. Quick Setup...
  • Page 20 Range: -40°F [-40°C] - Outside Temperature Maximum; Default: 5°F Minimum (CH-1) [-15°C] This parameter the sets the maximum outside temperature for the outdoor reset Outside Temperature curve. Range: Boiler Temperature Minimum - Warm Weather Shutdown; Default: Maximum (CH-1) 68°F [20°C] Rinnai Commercial Boiler User Manual...
  • Page 21 140 - 180°F Unit Heater 130 - 140°F 160 - 180°F Base Board Convectors 100 - 140°F 140 - 180°F Cast Iron/Panel Radiator 90 - 120°F 140 - 180°F Undermount Radiant 100 -120°F 120 - 150°F Rinnai Commercial Boiler User Manual...
  • Page 22 This function will alert the boiler about an outside freeze condition based on the set value. Protection The boiler will monitor the supply temperature before activating the freeze protection Setpoint mode. Range: 40°F [4] - 60°F [16]. NOTE: Requires Technician or Engineer level for access. Rinnai Commercial Boiler User Manual...
  • Page 23 When a sensor is accidentally selected and aquastat is used, the boiler will present an error code when aquastat is closed. Range: Aquastat - Sensor; Default: Aquastat Rinnai Commercial Boiler User Manual...
  • Page 24 NOTE: It is critical to ensure low temperature zones are protected via mixing valve to prevent overheating due to higher setting of boiler supply temperature for DHW. Range: On - Off; Default: Off Rinnai Commercial Boiler User Manual...
  • Page 25 State; 0.5V - 1V - Boiler in Off state, standby, pre-purge, post-purge...; 1V - Function Output UX3 10V—represents 0% - 100% modulation. Range: None, Boiler Pump, DHW Pump, CH-1 Pump, CH-2 Pump, Burner Modulation; Default: Burner Modulation. Rinnai Commercial Boiler User Manual...
  • Page 26 This parameter sets the time for leading source rotation is a cascade system. The boiler loads in a cascaded system can be influenced by defining the order Cascade Rotation Time of a lead lag boiler. Range: 10-990 Hours; Default: 50 Hours Rinnai Commercial Boiler User Manual...
  • Page 27 Detection of the master role can be automatic (Auto) or can de switched as fix (always). Range: Auto-Always; Default: Auto. This function will add and offset value to the boiler setpoint above the cascade Setpoint Compensation system sensor temperature setpoint. Range: 1-100; Default: 36°F [20°C] Rinnai Commercial Boiler User Manual...
  • Page 28 Range: On-Off; Default: Off. NOTE: ONLY enable Wi-Fi when connecting the boiler to a router. This function is available in case there is a need to forget the current Wi-Fi Forget Network connectivity and connect to a new Wi-Fi. Press the icon to forget network. Rinnai Commercial Boiler User Manual...
  • Page 29 Metric (C, Bar, kWh), or vice-versa. Range: Imperial - Metric Off; Default: Imperial Ethernet Settings This function can ONLY be accessed by a Rinnai employee. This function can be used to logout of SETUP or SERVICE pages, and to change User Logout user level once logged in.

  • Page 30: Maintenance

    Sets the boiler maintenance interval based on burner run hours. Last Maintenance Range: 100 - 10,000 Hours; Default: 1500 Hours Burner Cycles Since Sets the boiler maintenance interval based on ignition cycles. Last Maintenance Range: 100 - 65,500 Cycles; Default: 9000 Cycles Rinnai Commercial Boiler User Manual...
  • Page 31 Room thermostat CH-2 or the demand for heat is off. The state will change to closed when a room thermostat is connected and calling for heat demand. Rinnai Commercial Boiler User Manual...
  • Page 32 The air pressure switch is normally closed during normal operation. The switch Air Pressure Switch will open in case of a vent or condensate blockage and the control will generate an error code. Gas Pressure Switch Not applicable for 301 and 399 models Rinnai Commercial Boiler User Manual...
  • Page 33 Displays the indirect storage tank active setpoint Temperature—Setpoint Displays the actual indirect storage tank temperature. NOTE: This will ONLY Indirect Storage Tank display a value when a temperature sensor is being used to control the indirect Temperature—Actual storage tank. Rinnai Commercial Boiler User Manual...
  • Page 34 DHW Pump (Q3) Speed Not used Displays the value of 0-10V output signal for UX2 connection Displays the value of 0-10V output signal for UX3 connection Displays the PWM value in % for P1 connection. Rinnai Commercial Boiler User Manual...
  • Page 35 Once the error has been cleared the line will change color from gray to green. Burner Hours Run Shows total burned run hours Burner Starts Stage 1 Shows total ignition cycles Rinnai Commercial Boiler User Manual...
  • Page 36 Displays the run hours for DHW mode Reset Error Code This will clear the error history (ONLY available for Rinnai employees) List of Error Codes This page accumulative error codes. This list can ONLY be reset by a Rinnai employee. DESCRIPTION FUNCTION VIEW - Info...
  • Page 37 Once the user leaves the screen the graph will clear and start from the current time. There are four different graphs (Temperatures, Pumps, Fan Speed / Ion. Curr., Cascade, and Water Pressure), and ONLY one of the graphs can be viewed at once. Rinnai Commercial Boiler User Manual...
  • Page 38 By clicking on Normally Closed (NO), this will close the room thermostat connection and the boiler will get a demand for heat. NOTE: It is very critical to return these values to the default setting (NO) once the testing is completed. Rinnai Commercial Boiler User Manual...
  • Page 39 To edit previous messages, double click on the desired message. It will be highlighted in blue and confirma- tion will po-up. Click on Modify Message to make changes to current message, or Delete Message to delete current selected message. Rinnai Commercial Boiler User Manual...
  • Page 40 If everything is set correctly, use the save sensor option on SETUP - system setup to configure this sensor. 4- Replace the supply temperature sensor if malfunction is detected. 5- If the issue persists, replace the main control board Rinnai Commercial Boiler User Manual...
  • Page 41 1- Check to ensure the cascade addresses for the units in the cascade system are unique. For instance if there are one or more units set as Master, the LPB address collision error code will be displayed. Rinnai Commercial Boiler User Manual...
  • Page 42 Check for water leaks in the system piping. 2- If the pressure in the system is still below 16 PSI (1.2 bar), replace the water pressure sensor. Rinnai Commercial Boiler User Manual...
  • Page 43 6- Check for vent or condensate blockage. 7- If the problem persists, remove the burner door and inspect the ignition electrodes (check for gaps and distance to the burner. Clean if necessary) Rinnai Commercial Boiler User Manual...
  • Page 44 4- If the issue persists check replace the air pressure switch. This error code requires a manual reset Unit in parameteriza- 1- Unit in parameterization mode (301) tion mode 2- Unit in parameterization mode (770 - parameter stick) Rinnai Commercial Boiler User Manual...
  • Page 45 If so, please check the wiring from webserver card/Wi-Fi Module to the HMI for proper connection (see wiring diagram for details). 3. The temperature values on the main screen are all zeros. Ensure the webserver card/Wi-Fi Module is properly connected to the main controller and is getting power. Rinnai Commercial Boiler User Manual...
  • Page 46 Resistance [Ω] Temperature [°F] Resistance [Ω] 13034 9889 7578 5861 4574 3600 32555 2857 25339 2284 19873 1840 15699 1492 12488 1218 10000 1000 8059 6535 5330 4372 3605 2989 2490 2084 1753 1481 1256 1070 Rinnai Commercial Boiler User Manual...
  • Page 47 (default is + 20°F [11°C]). For instance if the indirect tank is set to 120°F, the boiler will supply 140°F to the indirect tank coil. Rinnai Commercial Boiler User Manual...
  • Page 48 150 mV. NOTE: It is critical to keep the 0-10V input voltage wiring away from the line voltage wiring to avoid induced voltage which may cause the boiler to be energized when not desired. The following graphs are linear representation of the 0-10V operation. Rinnai Commercial Boiler User Manual...
  • Page 49 The units are set from the factory to rotate every 50 hours in order to balance the run hours. All other parameters in the cascade setup are optional depending on the system application. Rinnai Commercial Boiler User Manual...
  • Page 50 500°F [260°C] , and 605°F [318°C], respectively. These switches prevents overheating in case of abnormal operation of the appliance or premature deterioration of the insulation disk located on the back of the combustion chamber. Rinnai Commercial Boiler User Manual...
  • Page 51 Verify the boiler is free from any abnormal situations, such as diagnostic error codes, loud noises, leakage or other potential issues. • Check that the pressure on the controller display or external pressure gauge indicates 20-70 psi (138-483 kPa). Rinnai Commercial Boiler User Manual...
  • Page 52 Rinnai Commercial Boiler User Manual...
  • Page 53 Rinnai Commercial Boiler User Manual...
  • Page 54 Rinnai Commercial Boiler User Manual...
  • Page 55 Rinnai Commercial Boiler User Manual...

This manual is also suitable for:

Rcb399an

Table of Contents