Rinnai Sensei N-Series Service Presentation
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Rinnai Sensei N-Series Service Presentation

Level iii
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Rinnai N-Series
Level III Service Presentation
Version 01032018GW
Enhancing Lives By Changing The Way Water Is Heated
© 2015 Rinnai America Corporation
PROPRIETARY and CONFIDENTIAL
1
11/6/2018

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Summary of Contents for Rinnai Sensei N-Series

  • Page 1 Rinnai N-Series Level III Service Presentation Version 01032018GW Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 2 Therefore; no need to use thermal fuses. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 3 This procedure allows you to confirm your settings with the controller’s display. e. Gas Valve: - Why use a zero governor gas valve? Rinnai switched to this valve system in order to satisfy the PVC 2” air/exhaust venting requirement. The current proportional gas valve would not provide the air-fuel ratio with respect to the air quantity to accomplish this task.
  • Page 4 - Located in by-pass valve – easy to remove from inside unit’s cabinet. i. Stainless Steel Clips throughout unit: - Eliminated screws – use clips for easier/faster parts removal Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 5 DISABLE position. Set to your selection at parameter 03. Parameter 03b = 6 months Parameter 03c = 1 yr. Parameter 03d = 2 yrs. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 6 N - Series Water Heaters External Model Internal Model Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 7 *RUR residential models include an integrated circulation pump and a thermal bypass valve. The MC-195 or the Control R system must be used (purchased separately) in order for the circulation pump to operate. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 8 CU199i REU-N3237FFUC-US 199K 0.4 GPM 9.8 GPM 7.7 GPM 5.5 GPM thermal CU199e REU-N3237WC-US Efficiency CU models are for commercial applications ONLY. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...

  • Page 9: Important Information

    Vent System - MUST use one of Rinnai’s listed and tested vent systems. Electrical System - MUST be properly sized for load at location. Refer to the National Electrical Code for details.
  • Page 10 Process orders Monday – Friday from 8 a.m. to 8 p.m. EST Ship from 8:00 a.m. to 6:30 p.m. EST Online ordering – Rinnai Parts Store 24/7 Warranty Department Available in office from 8 a.m. to 5 p.m. EST, Monday- Friday Technical Support Department –...
  • Page 11 4. Please refer to each model’s data sheet and/or service documentation for specific model information. 5. Rinnai pays reasonable labor, normally one hour for most all parts, exceptions; some condensing units pay two to three hours labor for burner or heat exchanger replacement.
  • Page 12 For service, troubleshooting, and component replacement, the following tools are needed #2 Phillips Small Phillips Head Head U-Tube Digital (magnetic) Manometer Multimeter Screw Drivers (Volt/Ohm Meter) Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...

  • Page 13: Front Panel Removal

    Clip on front panel plastic strips attach to. . Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 14 3. To add additional remote controllers use the wiring harness provided with each optional controller. Plug it into connector shown below on P.C. board. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 15 Flame Rod, Electrode & Sight Glass Plate Removal Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 16 Electrode gap is 3.5 mm. Electrode gasket The flame rod has a special coating. Cleaning the flame rod may remove this coating leading to code 12’s. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 17 Heat Exchanger Thermistor Removal Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 18 2. Follow the thermistor wires down about ten inches to a green electrical connection. Unplug that connector and pull the thermistor out of the unit. Remove retainer clip Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 19 Outgoing Water Thermistor Removal Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 20 2. Follow thermistor wire back to electrical connector, unplug at that point and remove the thermistor from the unit. 3. Reinstall in reverse order. Thermistor location Thermistor location Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 21 Bi-metal Over Heat Switch Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 22 2. If bi-metal activates code 14 will appear on water heater controller. Bi-metal switch close-up Bi-metal switch located on right side of HEX Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 23 Overheat Safety Protection The Rinnai Safety “Line of Defense” Multiple layers of technology ensure safe operation Code 54 will post If the outlet on the controller, if Heat Exchanger bi-metal thermistor detects the exhaust opens at 230℉ and resets at 9°F over the...
  • Page 24 Gas Valve and Fan Motor Removal Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 25 6. Remove (1) retaining screw from gas line at gas valve. 7. Remove (3) fan housing screws shown in red circles. 8. Remove fan motor/gas valve assembly from unit. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 26 Note: When power is applied to the unit the fan motor will cycle on for 10 seconds. Screws shown in item 1 above Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 27 Which includes the air box, burner & Secondary Heat Exchanger The Sensei Heat Exchanger is made of 444 Stainless Steel which is more corrosion-resistant than 430 SS, Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 28 5. Unplug zero governor gas valve connectors. 6. Unplug combustion motor connector. 7. Unplug electrode/flame rod connectors inside red square. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 29 3. Remove stainless steel clip stamped 14-20 on inlet water line to secondary heat exchanger. 4. Removal condensate hose wire clamp and hose Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 30 Pull assembly free from unit taking care not to damage any wiring harnesses. Screws in step 1 Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 31 ③ Thermal insulation： Insert new one at a predetermined position inside the heat exchanger. ④ Replace electrode gasket, electrode and flame rod when replacing the heat exchanger. ⑤ ④ ② ⑤ Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 32 ⑨ Replace O-rings in water circuit：Please compare the size of O-ring to old O-ring. Using the wrong size O-ring can lead to water leakage. ⑦ ⑧ ⑥ ⑨Other Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 33 Air Box Removal Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 34 Air Box Removal 1. Remove the (9) screws shown in red circles and pull the air box away from primary/secondary heat exchangers. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 35 Primary & Secondary Heat Exchanger Disassembly Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 36 1. Remove (14) screws shown in red circles, separate secondary & primary heat exchangers, see example to right. Top of Secondary Heat Exchanger surface Primary HEX surface Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 37 Burner Disassembly Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 38 Burner gasket MUST be replaced before reassembly. Burner plate Burner Assembly Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 39 Water Flow Servo Valve Removal Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 40 5. Remove stainless steel clip stamped 16-B from bypass valve. Pull WFSV out of water heater. 6. Replace all O-rings before reassembling WFSV. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 41 Bypass Valve & Flow Turbine Removal Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 42 5. Remove stainless steel clip stamped 16-B from bypass valve. Pull complete bypass valve assembly from unit. 6. Replace all O-rings before reassembling. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 43 2. Turbine assembly broken down - proper assembly order, item 2. Turbine Assembly End cap Bypass Valve One way clutch Turbine Turbine housing Grooved slot Retainer Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 44 Condensate Trap Removal Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 45 3. Remove (2) screws holding condensate trap to the unit. Remove condensate trap from unit. Drain plug for condensate trap. ½ NPTM fitting for condensate drain. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 46 P.C. Board Removal Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 47 If the micro processor on the old board is damaged, you will need to manually program each of the 14 parameters, instructions provided with new board. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 48 All wiring harness connections must be plugged up to correct connectors Note: Do not apply power until the product is inspected by the instructor! Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 49 Accessory Connections Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 50 Part #REU-EZC-2 is the wiring harness shown above. Part #105000249 This harness is for the EZ-CONNECT, S-BMS, Air- Handler & Anti-Freeze accessories. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 51 Electrical Values Fault Codes Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 52 An incorrect value is a very good indication that the component is bad though. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...

  • Page 53: Power Supply

    1. Check for 120 V.A.C. Power Supply to the water heater – (Plug CN1): a. Connector “A” pin 1 white wire & pin 3 black wire. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 54 P.C. board. 1. Verify 10 Amp Fuse is not blown, found next to connector A. Replace if blown. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 55 P.C. board. 1. Verify 4 Amp Fuse for pump circuit is not blown next to connector B. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 56 Connector ”H” on P.C. board pin #14 black wire & connector “D” pin 28 black = Less than 1 ohm or 11 ~ 13 VDC Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 57 Connector “D” on P.C. board black wire pin #27 & yellow wire pin #29 = 18 ~ 22 ohms or 11 ~ 13 VDC. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 58 Connector “D” yellow wire pin #8 & black wire pin #6 = 11 ~ 13 VDC at brown arrows. Pin #2 is the common wire for all three test points Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 59 6.4 ~ 7.8K ohms 113˚F = 3.6 ~ 4.5K ohms 140˚F = 2.2 ~ 2.7K ohms 221˚F = 0.6 ~ 0.8K ohms Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 60 6.4 ~ 7.8K ohms 113 ˚F = 3.6 ~ 4.5K ohms 140˚F = 2.2 ~ 2.7K ohms 221 ˚F = 0.6 ~ 0.8K ohms Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 61 P.C. board) at blue arrows = 12 ~ 14 VDC when 120 VAC power supply is on. Pin #30 is the common wire for item a & c Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 62 6.4 ~ 7.8K ohms 113 ˚F = 3.6 ~ 4.5K ohms 140˚F = 2.2 ~ 2.7K ohms 221 ˚F = 0.6 ~ 0.8K ohms Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 63 6.4 ~ 7.8K ohms 113 ˚F = 3.6 ~ 4.5K ohms 140˚F = 2.2 ~ 2.7K ohms 221 ˚F = 0.6 ~ 0.8K ohms Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 64 Connector “H” yellow wire pin #12 & Connector “D” pin #30 black wire should have 4 ~ 7 VDC at black arrows. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 65 6.4 ~ 7.8K ohms 113˚F = 3.6 ~ 4.5K ohms 140˚F = 2.2 ~ 2.7K ohms 221˚F = 0.6 ~ 0.8K ohms Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 66 Connector “D” red wire pin #15 & pink wire pin #13 – 44 ~ 52Ω. b. Connector “D” white wire pin #17 & blue wire pin #19 – 44 ~ 52Ω. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 67 Connector “D” Blue wire pin #5 and white wire pin #7 = 35 ~ 41 ohms e. Connector “D” Yellow wire pin #11 and Red wire pin #9 = 35 ~ 41 ohms Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 68 Connector “D” Black wire pin #21 & red wire pin #12 = 34K ~ 40KΩ or 11 ~ 13 VDC during ignition cycle. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 69 Note: The activation flow rate for the N-Series Water Heaters is 0.4 gpm. No need to make any adjustments when set above 120 degrees Fahrenheit. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 70 1. Check for 120 VAC to Freeze Protection Heater Circuit on the P.C. board at Connector C: a. Connector “C” black wire pin #2 & black wire pin #3 Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 71 Maintenance Diagnostic Codes/Diagram Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 72 Y - Yellow G - Green B - Blue PR- Purple GY- Grey W - White P - Pink 70 = Defective PC board Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 73 External N-Series units: 71 watts normal operation; 2 watts connected to the unit. standby; 168 watts anti-frost protection. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 74 Total Pump Cycles See chart to right Pump operation time in thousands of hours Exhaust Temperature Deg. Fahrenheit Exhaust Temperature at Thermistor Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 75 N-Series Rinnai Water Heaters. Total Calorie 1 Kcal/min. X1Kcal/min Total Calorie 1,000 Kcal/min X1.000 Kcal/min Total Calorie 1,000,000 Kcal/min X1,000,000 Kcal/min Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 76 - Ensure gas type and inlet gas pressure are correct. - Ensure gas line, meter and or regulator are sized properly. - Bleed all air from the gas lines. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 77 - Ensure the internal air filter is clean. - Verify proper venturi for gas type being used is installed in gas valve. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 78 - Ensure Venturi isn't blocked. Venturi Blockage - Replace venturi and zero governor gas valve assembly. - Contact Rinnai for assistance in re-setting unit if error re-appears - Check components for an electrical short. Electrical grounding - Confirm all wiring harnesses are properly connected - If the P.C.
  • Page 79 Check fan motor for proper operation. – Replace gas valve. – Contact Rinnai for assistance in re-setting unit if error re-appears – Ensure inlet water temperature is not to high. – Check for blockage n the vent system’s intake or exhaust flue –...
  • Page 80 - Inspect flame rod wiring for loose, damage or broken connectors - Verify heat exchanger is not leaking Flame Rod - Replace flame rod - Replace PC Board. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 81 - Placeholder in Diagnostic code history indicating that a service provider performed Maintenance Indicator maintenance or service. Enter this code after performing service by pressing the UP, DOWN and ON/OFF button simultaneously. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 82 Warranty & Maintenance Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...

  • Page 83: Limited Warranty

    * The heat exchanger warranty will be 15 years or 12,000 operation hours, whichever occurs first. ** From date of purchase, period of coverage is reduced to 8 years or 12,000 operation hours, whichever occurs first, if the Rinnai Water Heater temperature setting exceeds 160 °F (71 °C). •...
  • Page 84 Maintenance • Rinnai recommends that the inlet water filter be cleaned before the initial operation of a new unit and periodically thereafter. • Before removing the inlet filter, ensure that the water supply has been turned off, and all pressure...
  • Page 85 Maintenance Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 86 Heat exchanger flush procedure. The Rinnai SENSEI™ N - Series water heaters include a service indicated / reminder. When selected in the parameter settings an “SS” code will display on the controller indicating it is time to flush and service the water heater. Failure to service the appliance may cause damage to the heat exchanger.
  • Page 87 MUST be installed under the appliances. • Rinnai recommends the use of water treatment in hard water areas. • Water heaters utilizing a circulation system will require the installation of an expansion tank.

  • Page 88: Gas Requirements

    Gas Requirements Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 89 Various manometers are available for testing gas pressure, see two examples below. U-tube or Slack tube Digital manometers manometers Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 90 • An adequate gas supply is critical for proper operation of all Rinnai water heaters. • The inlet gas pressure to the N-Series water heaters must be within the limits shown on the product’s rating plate, Natural Gas = 3.5” – 10.5” W.C. and Propane Gas = 8.0” – 13.5”...
  • Page 91 4. Locate orifice cover plate on top portion of gas valve. (Figure 1) 5. Remove 3 screws securing orifice cover plate. (Figure 1) Figure 1 Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 92 11. Proceed to “Parameter Settings” section to complete the conversion. Figure 2 Grooved side of Gasket must be facing outwards Cover Outer Inner Orifice Gasket Plate Gasket Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 93 Programming Parameter Settings Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 94 “High Flow Rate” will enable increased water flow through the water heater. Only licensed professionals who are trained for servicing Rinnai Tankless Water Heaters are permitted to adjust parameter settings. Adjust only the parameter settings discussed in this section;...
  • Page 95 “High Flow Rate” will enable increased water flow through the water heater. Only licensed professionals who are trained for servicing Rinnai Tankless Water Heaters are permitted to adjust parameter settings. Adjust only the parameter settings discussed in this section;...
  • Page 96 3. Press the “A” button 4. Use the and down buttons on the controller to select a setting number (See Parameter Settings Table). Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 97 6. To exit the parameter setting mode press the “A” button on the PC board for 1 second, this will lock in your selection. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 98 Cross Over Mode Dedicated Mode Long Loop Short Loop Recirculation Economy Comfort Mode Control Switch EZ Connect 2 Units 1 Unit Cascade Secondary Primary Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 99 BMS = Building Management System Enhancing Lives By Changing The Way Water Is Heated Setting 09 is available only if setting 08b is selected. © 2015 Rinnai America Corporation Selecting “High” will increase the water flow rate to the maximum capacity. PROPRIETARY and CONFIDENTIAL...
  • Page 100 3. When the desired temperature setting appears in the display, press the top push button (“A”) on the PC board for 1 second to save the setting and return the water heater to normal operation mode. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 101 (01A or 01b). 2. Press the (Up) button on the controller until parameter 02A, 02b, 02c or 02d appears. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 102 4. When the desired altitude setting appears in the display, press the top push button (“A”) on the PC board for 1 second to save the setting and return the water heater to normal operation mode. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 103 (01A or 01b). 2. Press the (Up) button on the controller to scroll to the active Maximum Flow Rate (11A or 11b). 1 1A Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 104 4. When the desired altitude setting appears in the display, press the top push button (“A”) on the PC Board for 1 second to save the setting and return the water heater to normal operation mode. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 105 (Down) button for 2 seconds, press and hold the “On/Off” button (hold both buttons simultaneously). 3. Use the (Up) and (Down) buttons to scroll to the desired diagnostic information described below. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 106 Freeze Protection Temperature (Indoor Unit Only) °F Freeze Protection Temperature (Outdoor Unit Only) °F Pump Hours x100 Hours Pump Cycles See following information Exhaust Temperature °F Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 107 6- - Performance Data 06 = Additional Controllers Connected to Product CONTROLLER MODEL CONNECTED NOT CONNECTED BSC & BSC2 100, 200 (QTY2) Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 108 This document is meant as a guide, not as a replacement for the water heater’s and/or common vent installation manuals. Refer to those manuals for appropriate lengths. . Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL...
  • Page 109 This document is meant as a guide, not as a replacement for the water heater’s and/or common vent installation manuals. Refer to those manuals for appropriate lengths. complete details. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 110 - The connection will rotate water heater operation to ensure equal usage among the entire system. NOTE: For proper operation do not combine different models with cascade communication. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 111 (open ports should be on the first and last water heater in the system). 5. Proceed to “Programming Cascade Communication” in the manual. Cascade IN Cascade OUT Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 112 - Example: First secondary unit will show “ – 01 “ , Second secondary unit will show “ – 02 “ and so on. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL...
  • Page 113 The displays will change from the “---” to show the ID number of each unit in the Cascade system. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 114 Servicing or Replacing a Cascading Unit While servicing or replacing a unit using Rinnai’s cascade system you MUST isolate that unit from the system. Follow the steps noted to the right and following slide. Enhancing Lives By Changing The Way Water Is Heated ©...
  • Page 115 Once service or unit replacement is complete, reconnect the cascade cables back to that unit to place it back into the system rotation. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 116 Voltage and Resistance Values Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 117 86 ˚F 6.7 ~ 7.4K ohms 113 ˚F 3.9 ~ 4.3K ohms 140˚F 2.4 ~ 2.7K ohms 221 ˚F 0.66 ~ 0.76K ohms. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 118 86 ˚F 6.7 ~ 7.4K ohms 113 ˚F 3.9 ~ 4.3K ohms 140˚F 2.4 ~ 2.7K ohms 221 ˚F 0.66 ~ 0.76K ohms. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...
  • Page 119 17. Measure voltage of Additional Remote Controller(s): a. Connector “H” Yellow wire pin #1 & Black wire pin #3 = 4 ~ 7 VDC. Enhancing Lives By Changing The Way Water Is Heated © 2015 Rinnai America Corporation PROPRIETARY and CONFIDENTIAL 11/6/2018...

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