Rinnai REP199EP Smart Circ Non Condensing Propane Tankless Water Heater Datasheet

Rinnai REP199EP Smart Circ Non Condensing Propane Tankless Water Heater

Datasheet

Product Using Instructions

Specifications

• Model Number: U356-0755-2X03(00)

Performance Data

To obtain performance data:

1. Press and hold the (Down) button.
2. While holding the (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 performance information.

Parameter Settings

To adjust the parameters:

1. Press the A button for 1 second.
2. Use the (Up) and (Down) buttons on the controller to select a setting number.
3. Once the desired setting number is selected, use the On/Off button on the controller to change the selection for the setting number.
4. To exit the parameters, press the A button on the PC board for 1 second.

Parameter Settings Table

5,400 ft (610 – 1,646 m)
03| Service Soon| Disabled| 0.5 Year
04| Recirculation Settings| No Recirculation| Recirculation (Dedicated)

Manifold Pressure Settings

Ensure gas pressure check under Commissioning has been completed first! The regulator is electronically controlled and factory pre-set. Under normal circumstances, it does not require adjustment during installation. Make adjustments only if the unit is not operating correctly and all other possible causes for incorrect operation have been eliminated.

1. Turn off the gas supply.
2. Turn off the 120 V power supply.
3. Remove the front panel from the appliance.
4. Turn on the 120 V power supply.
5. Check the gas type using the data plate on the side of the unit and parameter setting 10 (refer to Parameter Settings section). (A=LPG, b=NG).
6. Remove sealing screw and attach the manometer to the burner test point, located on the…

PERFORMANCE DATA

To Obtain Performance Data:

1. Press and hold the (Down) button.
2. While holding the (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 performance information described below.

Performance Data Table

DISPLAY /CYCLE COUNT

06: Controllers Connected

Default display is 100

• depends on connection status of another controller.

PARAMETER SETTINGS

To Adjust the Parameters:

1. Press the “A” button for 1 second.
2. Use the (Up) and (Down) button on the controller to select a setting number (See Parameter Settings Table).
3. Once the desired setting number is selected, use the “On/Off” button on the controller to change the selection for the setting number.
   • Example: Display will change from 01A to 01b for Maximum Temperature setting (as shown below).
4. To exit the parameters, press the “A” button on the PC board for 1 second.

Parameter Settings Table

ELECTRICAL DIAGNOSTICS

NOTE: Wiring diagram is available in manual and on the inside front cover.

Important Safety Notes

There are a number of (live) tests required when performing electrical diagnostics on this product. Proceed with caution at all times to avoid contact with energized components inside the water heater. Only trained and qualified service technicians should attempt to repair this product. Before checking for resistance readings, disconnect the power source to the unit and isolate the item from the circuit (unplug it).

Freeze Protection

• This unit has freeze protection heaters mounted at different points to protect the water heater from freezing.
• All of them should display a positive resistance reading.

Flame Rod

• Place one lead of your meter to the flame rod and the others to ground.
• When the unit is attempting to ignite, you should read more than 0.5VAC.

Amp Fuses

This unit has two glass fuses located on the PC Board, one inline (10) amp and one (4) amp glass fuse. Remove the fuses and check continuity through it. If you have continuity through each fuse then it is functioning. Otherwise the fuse is blown and must be replaced. Note: RE140i/e does not have a 4 amp fuse.

Thermistors

Check all thermistors by inserting meter leads into each end of the thermistor plug. Set your meter to the 20 K scale and read resistance. Applying heat to the thermistor bulb should decrease the resistance. Applying ice to the thermistor bulb should increase the resistance.

Below are examples of typical temperatures and resistance readings.

Electrical Circuit Table

DIAGNOSTIC CODES

To Display Diagnostic Codes:

1. Turn off the water heater by pressing the “On/Off” button.
2. Press and hold the “On/Off” for 2 seconds and then the (Up) button simultaneously.
3. The last 9 maintenance codes display and flash one after the other.
4. To exit diagnostic codes and return the water heater to normal operation, press and hold the “On/Off” button for 2 seconds and then the (Up) button simultaneously.
5. Turn on the water heater by pressing the “On/Off” button.

10. Air Supply or Exhaust Blockage

• Ensure approved venting materials are being used.
• Check that nothing is blocking the flue inlet or exhaust.
• Check all vent components for proper connections.
• Ensure vent length matches with the vent lengths set in the parameter settings.
• Verify High Altitude setting is set properly. (See Parameter Setting)
• Check fan for blockage.

11. No Ignition (Heater Not Turning On)

• Check that the gas is turned on at the water heater, meter, or propane cylinder.
• If the system is propane, make sure that gas is in the tank.
• Bleed all air from the gas line
• Ensure appliance is properly grounded.
• Ensure gas type and pressure is correct.
• Ensure gas line, meter, and/or regulator is sized properly.
• Verify parameter setting are set properly.
• Ensure igniter is operational.
• Check igniter wiring harness for damage.
• Check gas solenoid valves for open circuits.
• Ensure flame rod wire is connected.
• Check flame rod for carbon build-up.
• Remove burner cover and ensure burners are properly seated.
• Remove burner plate; inspect burner surface for condensation/debris.
• Check the ground wire for the PC board.

12. No Flame

• Check that the gas is turned on at the water heater, meter, or cylinder.
• Check for obstructions in the flue outlet.
• If the system is propane, make sure that gas is in the tank.
• Ensure gas line, meter, and/or regulator is sized properly.
• Ensure gas type and pressure is correct.
• Bleed all air from gas lines.
• Ensure proper venting material was installed.
• Ensure condensation collar was installed properly.
• Ensure vent length is within limits.
• Verify parameter setting are set properly.
• Check power supply for loose connections.
• Check power supply for proper voltage and voltage drops.
• Ensure flame rod wire is connected.
• Check flame rod for carbon build-up.
• Disconnect and reconnect all wiring harnesses on unit and PC board.
• Check gas solenoid valves for open circuits.
• Remove burner plate; inspect burner surface for condensation/debris.

14. Thermal Fuse

• Check for restrictions in air flow around unit and vent terminal.
• Check gas type of unit and ensure it matches gas type being used.
• Check for low water flow in a circulating system causing short-cycling.
• Check for foreign materials in combustion chamber and exhaust piping.
• Check heat exchanger for cracks or separations.
• Check heat exchanger surface for hot spots which may be caused by scale build-up.
• Refer to instructions in manual for flushing heat exchanger. Hard water must be treated to prevent scale build up or damage to the heat exchanger.
• Measure resistance of safety circuit.
• Ensure high fire and low fire manifold pressure is correct.
• Check for improper gas conversion of product.

16. High Outgoing Temperature

• Check for restrictions in air flow around unit and vent terminal.
• Check for low water flow in a circulating system causing short-cycling.
• Check for foreign materials in combustion chamber and exhaust piping.
• Check for blockage in the heat exchanger.
• Check the thermistor sensor and clean sensor of scale build-up.

19. Electrical Grounding

• Check all components for electrical short.

32. Outgoing Water Temperature Thermistor

• Check sensor wiring for damage.
• Measure resistance of sensor. (See Electrical Diagnostics)
• Clean sensor of scale build-up.
• Replace sensor if necessary.

33. Heat Exchanger Thermistor

• Check sensor wiring for damage.
• Measure resistance of sensor. (See Electrical Diagnostics)
• Replace sensor if necessary.

34. Combustion Air Temperature Thermistor Fault

• Check for restrictions in air flow around unit and vent terminal.
• Check sensor wiring for damage.
• Measure resistance of sensor.
• Ensure fan blade is tight on motor shaft and is in good condition.
• Replace sensor if necessary.

41. Freeze Protection Thermistor

• Check sensor wiring for damage.
• Measure resistance of sensor. (See Electrical Diagnostics)
• Replace sensor if necessary.

51. Inlet Water Temperature Thermistor

• Check sensor wiring for damage.
• Measure resistance of sensor. (See Electrical Diagnostics)
• Replace sensor if necessary.

52. Modulating Solenoid Valve Signal

• Check modulating gas solenoid valve wiring harness for loose or damaged terminals.
• Measure resistance of valve coil.

61. Combustion Fan

• Ensure fan will turn freely.
• Check wiring harness to motor for damaged and/or loose connections.
• Measure resistance of motor winding.

63. Recirculation Low Flow

• Ensure the inlet water filter is clean and free of debris.
• Ensure parameter setting are correctly set for recirculation mode.
• Ensure pump supply voltage.
• Check the wiring harness to the pump and PCB for damaged and/or loose connections.
• Ensure air is removed from the recirculation line.

65.  Water Flow Servo

• Measure the resistance values and voltage of the water flow control.*
• Ensure the harness and connector are not wet.
• If the voltage from the PC Board is abnormal, replace the PC Board; otherwise, replace the water flow servo valve.

66. Bypass Flow Servo

• Measure the resistance values and voltage of the bypass servo valve.*
• Ensure the harness and connector are not wet.
• If the voltage from the PC Board is abnormal, replace the PC Board; otherwise, replace the bypass servo valve.

70. PC Board

• Check the connection harness at the connection on the PC board.
• Replace PC board.

7 1. Solenoid Valve Circuit

• Ensure dip switch on PC board is in the OFF position.
• Check gas solenoid valves for short circuits or grounding.
• Ensure heater circuit is not grounded.
• Replace PC Board.

72. Flame Sensing Device

• Verify flame rod is touching flame when unit fires.
• Check the flame rod and wire for damage.
• Remove flame rod;check for carbon build-up; clean with sand paper.
• Check inside burner chamber for any foreign material blocking flame at flame rod.
• Check the resistance to the cabinet.
• If there is no issue with the flame rod or wiring, replace the PC Board.

79.  Water Leak Detected

• Turn off water supply and contact licensed professional.

LC. Scale Build-up in Heat Exchanger (when checking maintenance code history, “00” is substituted for “LC”

• LC indicates that there is scale build up in the heat exchanger and that the heat exchanger needs to be flushed to prevent damage. Refer to the flushing instructions in the manual. Hard water must be treated to prevent scale build up or damage to the heat exchanger.
• After flushing, reset LC code as instructed.
• Please call Rinnai technical department.

55. (SS) Service Soon (Flush Heat Exchanger)

• SS is a time-based service indicator set during installation. See section “4.10 Configure Parameter Settings” for additional details on setting and changing the SS indicator.
• SS indicates that it is time for service. The heat exchanger should be flushed to prevent damage (refer to section “6.2 Flushing the Heat Exchanger” for more information). Hard water must be treated to prevent scale build-up or damage to the heat exchanger.
• To reset the SS code, push the On/Off button on the temperature controller 5 times in 5 seconds.

NO CODE:  Nothing happens when water flow is activated

• Clean inlet water supply filter.
• On new installations ensure hot and cold water lines are not reversed.
• Verify you have at least the minimum flow rate required to fire unit.
• Check for cold to hot cross over. Isolate circulating system if present. Turn off cold water to the unit, open pressure relief valve; if water continues to flow, there is bleed over in your plumbing.
• Verify turbine spins freely.
• Measure the resistance of the water flow control sensor.
• If the display is blank and clicking is coming from the unit, disconnect the water flow servo motor (GY, BR, O, W, P, BL, R). If the display comes on then replace the water flow servo motor.

FF. Maintenance Indicator

• Placeholder in Diagnostic code history indicating that a service provider performed maintenance or service.
• Enter this code after performing service by pressing (Up) , (Down) and On/Off simultaneously.
• FF is visible on the monitor.

Parts Descriptions

ITEM| DESCRIPTION| PART NUMBER| RE199e| RE180e| RE160e| RE140e
---|---|---|---|---|---|---
002| Wall Bracket| 109000281| 2| 2| 2| 2
004| Reinforcement Plate| 109001248| 1| 1| 1| 1
005| Heat Protection Plate| 109001249| 1| 1| 1| 1
006| Front Panel| 109001251| 1| 1| 1| 1
007| Front Panel Upper Packing| 109001252| 1| 1| 1| 1
008| Front Panel Lower Packing| 109001253| 2| 2| 2| 2
009| Temperature Control| 105002010| 1| 1| 1| 1
010| Temperature Control Plate| 109001255| 1| 1| 1| 1
013| Thermistor Packing| 109000490| 1| 1| 1| 1
016| Earth Plate| 109001257| 1| 1| 1| 1
017| Latch Hook| 109001258| 2| 2| 2| 2
018| Latch| 109001259| 2| 2| 2| 2
019| Clamp Fixing Plate| 109001260| 1| 1| 1| 1
020| Clamp| 109001261| 2| 2| 2| 2
021| Rubber Stop| 109000634| 1| 1| 1| 1
022| Rubber Stop| 109001262| 1| 1| 1| 1
100| Gas Control Assembly| 106000248| 1| 1| 1| 1
101| Test Port Set Screw| C10D-5| 2| 2| 2| 2
102| 3/4 Gas Inlet| 106000119| 1| 1| 1| 1
103| Burner Unit Assembly| 106000249| 1| 1| |
103| Burner Unit Assembly – Small| 106000250| | | 1| 1
104| Combustion Gasket| 109000973| 1| 1| |
104| Combustion Gasket- Small| 109000974| | | 1| 1
105| Gas Pipe| 106000251| 1| 1| 1| 1
110| Manifold Assembly – LPG| 106000252| 1| 1| |
110| Manifold Assembly – NG| 106000253| 1| 1| |
110| Manifold Assembly – LPG| 106000254| | | 1| 1
110| Manifold Assembly – NG| 106000255| | | 1| 1
111| Manifold Upper Packing| 106000256| 1| 1| |
111| Manifold Upper Packing – Small| 106000257| | | 1| 1
112| Manifold Lower Packing| 106000258| 1| 1| |
112| Manifold Lower Packing – Small| 106000259| | | 1| 1
113| Top Side Reinforcement| 109001264| 1| 1| 1| 1
116| Electrode| 105000953| 1| 1| 1| 1
117| Flame Rod| 105000954| 2| 2| 2| 2
118| Electrode Bracket – Right| 109001265| 1| 1| 1| 1
119| Electrode Packing| 109001266| 1| 1| 1| 1
120| Electrode Bracket – Left| 109001267| 1| 1| 1| 1
123| Electrode Bracket Assembly| 109001268| 1| 1| 1| 1
124| Fan Motor Assembly| 105000955| 1| 1| 1| 1
125| Fan Motor| 105000992| 1| 1| 1| 1
126| Fan Casing| 108000128| 1| 1| 1| 1
128| Exhaust Duct Bracket| 109001269| 1| 1| 1| 1
129| Combustion Chamber – Body Bracket| 109001270| 1| 1| 1| 1
130| Combustion Chamber Bracket| 109001271| 2| 2| 1| 1
131| Combustion Chamber Bracket – Small| 109001272| | | 1| 1
135| Flue Outlet| 102000068| 1| 1| |
135| Flue Outlet – Small| 102000069| | | 1| 1
136| Bellmouth| 109001278| 1| 1| 1| 1
---|---|---|---|---|---|---
137| Seal Packing| 109001280| 1| 1| |
137| Seal Packing – Small| 109001281| | | 1| 1
138| Front Panel Seal Packing| 109001282| 1| 1| 1| 1
143| Heat Exchanger Assembly| 104000313| 1| 1| |
143| Heat Exchanger Assembly – Small| 104000315| | | 1| 1
400| Water Inlet| 107000614| 1| 1| 1| 1
401| Water Flow Servo & Sensor| 105000957| | | 1| 1
402| Rectifier| M8D1-15| 1| 1| 1| 1
403| By-pass Servo Assembly| 105000958| 1| 1| |
404| Pipe Bracket| 109001284| 2| 2| |
405| Plug Band| 109000018| 1| 1| 1| 1
406| Ø16 Pipe Bracket| 109001285| | | 1| 1
408| Hot Water Outlet (3/4 NPT)| 107000092| 1| 1| 1| 1
409| Stop Bracket| 109001286| 1| 1| 1| 1
410| Gas Pipe Bracket| 109000635| 1| 1| 1| 1
411| Bracket| 109001287| 1| 1| 1| 1
412| Filter Assembly| H98-510-S| 1| 1| 1| 1
413| Cover| 107000093| 2| 2| 1| 1
415| Hot Water Pipe Assembly| 107000616| 1| 1| |
415| Hot and Cold Water Pipe Assembly| 107000617| | | 1| 1
416| Cold Water Pipe Assembly| 107000620| 1| 1| |
417| Clip| 1090001288| 1| 1| 1| 1
418| Clip| 109000244| 1| 1| 1| 1
460| Water Flow Turbine| 107000621| 1| 1| |
461| Water Flow Turbine| 107000088| | | 1| 1
478| Clip| 109000636| 1| 1| 1| 1
700| PC Board – Large| 105000959| 1| 1| |
700| PC Board – Small 160| 105000960| | | 1|
700| PC Board – Small 140| 105000961| | | | 1
702| Cover| 109001292| 1| 1| 1| 1
706| Ignitor| 105000963| 1| 1| 1| 1
707| High Tension Cord| 105000964| 1| 1| 1| 1
708| Electrode Sleeve| AU206-218| 1| 1| 1| 1
709| Water Inlet Thermistor| 805000081| 1| 1| 1| 1
710| Heat Exchanger Thermistor| 105000965| 1| 1| 1| 1
711| Clip| 105000090| 1| 1| 1| 1
714| Fuse Holder| 109001295| 3| 3| 3| 3
715| Fuse Holder| 109000786| 7| 7| 7| 7
716| Heater Clip| AU124-618X01| 3| 3| 3| 3
717| Heater Clip| 109000795| | | 2| 2
718| Heater Clip| U250-625| 2| 2| |
719| Gas Control Harness| 105000966| 1| 1| 1| 1
724| Sensor Harness – 2| 105000969| 1| 1| |
724| Sensor Harness – 4| 105000971| | | 1| 1
725| Fuse Harness – 1| 105000976| 1| 1| |
725| Fuse Harness – 2| 105000977| | | 1| 1
726| Power Supply Harness – 2| 105000979| 1| 1| 1| 1
728| Ignitor Bracket| 109001296| 1| 1| 1| 1
---|---|---|---|---|---|---
729| Cable Clip| 109001297| 1| 1| 1| 1
730| Twin Thermistor| 105000982| 1| 1| 1| 1
731| Solenoid Harness| 105000983| 1| 1| |
731| Solenoid Harness – Small| 105000984| | | 1| 1
732| Outside Temperature Thermistor| 105000296| 1| 1| 1| 1
740| Heater| 105000986| 1| 1| 1| 1
742| Heater| 105000989| 1| 1| 1| 1
743| Over Heat Switch| 105000991| 1| 1| 1| 1
800| Screw| 109001298| 4| 4| 4| 4
801| Screw| 109000649| 8| 8| 8| 8
802| Screw| ZBA0408UK| 2| 2| 2| 2
803| Screw| CP-80452| 1| 1| 1| 1
804| Screw| 209000203| 3| 3| 3| 3
805| Screw| 109000598| 26| 26| 26| 26
806| Screw| 109001299| 9| 9| 9| 9
807| Screw| 809000179| 2| 2| 1| 1
808| Screw| 809000177| 18| 18| 18| 18
809| Screw| U217-449| 2| 2| 2| 2
810| Screw| 109001300| 1| 1| 1| 1
811| O-ring| 109001301| 3| 3| 3| 3
812| O-ring| M10B-2-16| 1| 1| 2| 2
813| O-ring| M10B-2-14| 3| 3| 1| 1
817| O-ring| 109000252| 2| 2| 2| 2
818| Packing| 109000181| 1| 1| 1| 1
820| Screw| 108000021| 4| 4| 4| 4
821| Screw| CP-20883-410UK| 2| 2| 2| 2
822| Screw| CP-30583| 3| 3| 3| 3
823| Screw| 209000206| 19| 19| 19| 19
824| Screw| 109000793| 2| 2| 2| 2
828| Screw| 109001306| 2| 2| 2| 2
830| O-ring| M10B-13-4| 2| 2| 2| 2
831| O-ring| M10B-2-4| 3| 3| 3| 3
834| Screw| 109001304| 5| 5| 5| 5
835| Screw| 109000648| 1| 1| 1| 1
836| Screw| 109001305| 2| 2| 2| 2
888| Manual| 100000722| 1| 1| 1| 1
889| Tech Sheet| 100000735| 1| 1| 1| 1

Thermal Fuse Location

• When replacing the heat exchanger, thermal fuse must be properly installed and secured.
• Refer to the following illustration. Large HEX is shown as representative.

Rinnai America Corporation continually updates materials, and as such, content is subject to change without notice.
For further information, contact Rinnai at 1-800-621-9419 or visit www.rinnai.us

References

• rinnai-lms.com
• #1 Selling Tankless Water Heater in the US | Rinnai

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>