Rinnai REP160e Installation And Operation Manual Download Page 1

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INTERNAL (INDOOR) MODELS:
VE199i (REU-VE2737FFD-US)
VE180i (REU-VE2432FFD-US)
VE160i (REU-VE2125FFD-US)
VE140i  (REU-VE1720FFD-US)

EXTERNAL (OUTDOOR) MODELS:
VE199e (REU-VE2737WD-US)
VE180e (REU-VE2432WD-US)
VE160e (REU-VE2125WD-US)
VE140e (REU-VE1720WD-US)

Tankless Water Heater (With Pump)

Installation and Operation Manual

ANSI Z21.10.3 • CSA 4.3

INDOOR MODELS:
REP199i (REU-VEP2730FFD-US)
REP160i (REU-VEP2125FFD-US)

OUTDOOR MODELS:
REP199e (REU-VEP2730WD-US)
REP160e (REU-VEP2125WD-US)

10000072600001

Summary of Contents for REP160e

Page 1: ...ODELS VE199e REU VE2737WD US VE180e REU VE2432WD US VE160e REU VE2125WD US VE140e REU VE1720WD US Tankless Water Heater With Pump Installation and Operation Manual ANSI Z21 10 3 CSA 4 3 INDOOR MODELS...

Page 2: ...not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instruc tions If you cannot reach your gas supplier call the fire department Ins...

Page 3: ...llation Guidelines 15 4 2 What You Will Need 16 4 3 Choose an Installation Location 17 4 4 Mount the Water Heater to the Wall 22 4 5 Vent the Water Heater 24 4 6 Connect Water Supply 32 4 7 Install Pr...

Page 4: ...6 Maintenance 58 6 1 Maintenance 58 6 2 Flushing the Heat Exchanger 61 6 3 Draining the Water Heater 62 7 Appendices 63 7 1 Massachusetts State Gas Regulations 63 7 2 Wiring Diagram 64 7 3 Ladder Dia...

Page 5: ...used in this manual Thank you for purchasing a Rinnai Tankless Water Heater Before installing and operating this water heater be sure to read these instructions completely and carefully to familiariz...

Page 6: ...erate injury It may also be used to alert against unsafe practices Indicates a potentially hazardous situation which if not avoided will result in personal injury or death The following precautions ap...

Page 7: ...ilding Use only your hand to turn the manual gas shutoff control valve Never use tools If the manual gas shutoff control valve will not turn by hand do not try to repair it call a trained and qualifie...

Page 8: ...tandBottomView Indoor Outdoor Figure 1 Front view Hot Water Outlet Cold Water Inlet Gas Inlet Cold Water Inlet Gas Inlet Hot Water Outlet Figure 2 Bottom view Topics in this section Front and Bottom V...

Page 9: ...s Ignition Unit PC Board Controller removed for clarity Heat Exchanger Figure 3 Main Components Fan Motor Assembly Condensate Drain indoor models only Concentric 3 in Exhaust 5 in Combustion Air indoo...

Page 10: ...in wc Propane 8 0 in wc 13 0 in wc Type of Appliance High Efficiency Non condensing Tankless Temperature Controller Continuous Flow Gas Hot Water System Ignition System Direct Electronic Ignition Ele...

Page 11: ...Indoor Dimensions Figure 5 Outdoor Dimensions Indoor Models REP199i and REP160i Outdoor Models REP199e and REP160e Front View Side View Front View Side View 2 64 67 22 87 581 24 64 626 14 05 357 10 77...

Page 12: ...103 2 87 73 3 4 MNPT H Hot Outlet 6 66 169 8 04 204 6 85 173 3 4 MNPT B Bracket 0 40 10 1 77 45 0 59 15 N A 3 4 1 Supply Connections Measurements in mm Figure 7 Outdoor Model Supply Connections Table...

Page 13: ...ll Pipe Cover Part PCD09 SHS Encloses the piping below the water heater for aesthetic purposes control r Wi Fi Module And Accessories Part RWM101 Controls On Demand recirculation remotely adjust tempe...

Page 14: ...itch for use with Pipe Cover Part PCD09 SHS Battery Backup Part R UPS350A Tankless battery backup system 500VA 350W uninterrupted power supply UPS Hot water usage of 1 hour per day with sufficient pow...

Page 15: ...ocal codes or in the absence of local codes with the National Electrical Code ANSI NFPA 70 or the Canadian Electrical Code CSA C22 1 The appliance and its manual gas shutoff control valve must be disc...

Page 16: ...t are not authorized for this appliance DO NOT run the unit with the front cover removed during normal operation 4 2 WhatYouWill Need 4 2 1 Items Included Unpack the Rinnai Tankless Water Heater packa...

Page 17: ...also includes a service indicator Service Soon SS When selected in the parameter settings an SS code will display on the controller indicating that it is time to flush and service the water heater Sc...

Page 18: ...water heaters Where possible install internal indoor water heaters in a sealed closet so that it is protected from the potential of contaminated indoor air 4 3 4 Outdoor Water Heaters and Vent Termina...

Page 19: ...manually However it is highly recommended to install the optional Drain Down Kit accessory that will enable the water heater to immediately drain upon loss of power the pressure relief valve is not af...

Page 20: ...ater Do not block the combustion air openings Back 0 in Sides Left and Right 2 in 51 mm 0 125 in 3 18 mm for recess box Front Exhaust 24 in 610 mm Location Clearances To Combustibles and Non Combustib...

Page 21: ...or combustion The water supply does not contain chemicals or exceed total hardness that will damage the heat exchanger A standard 3 prong 120 V AC 60 Hz properly grounded wall outlet for indoor models...

Page 22: ...cket For installation flexibility the top and bottom brackets can be adjusted to set the water heater distance from the wall Bracket retracted Bracket extended 0 39 1 8 10 45 Figure 9 Level the bracke...

Page 23: ...sh with the wall Use any of the holes in the top and bottom brackets Use a level placed horizontally or vertically to make sure the water heater is straight Proper operation requires the water heater...

Page 24: ...tight seal Follow the venting manufacturer s instructions The vent piece connected to the water heater must be secured with 1 self tapping screw Refer to the instructions of the vent system manufactu...

Page 25: ...it that may result in exhaust gases entering the soffit vent Install vent termination such that exhaust and rising moisture will not collect under eaves Discoloration to the exterior of the building c...

Page 26: ...0 www metal fabinc com Table 8 Approved Vent Manufacturers Table 9 Approved Vent Products Manufacturer Manufacturer Part number Product Description Diagram Horizontal Vertical Equivalent Length ft 3 i...

Page 27: ...on public property Vents for Category II and IV appliances cannot be located above public walkways or other areas where condensate or vapor can cause a nuisance or hazard M Clearance under veranda por...

Page 28: ...ust be used in horizontal terminations if a vertical rise in the vent system exceeds 5ft Maximum Height Regions of cold climate will create more condensate in the vent system The condensate collector...

Page 29: ...tic hose The condensate drain pipe along its entire length must be at least the same diameter as the drain line 5 8 inch The end of the condensate drain pipe should be open to the atmosphere The end s...

Page 30: ...0 ft 3 m horizontally L Clearance above paved sidewalk or paved driveway located on public property Vents for Category II and IV appliances cannot be located above public walkways or other areas where...

Page 31: ...parameters have been adjusted for vent length if necessary Refer to the section on Maximum Vent Length Confirm high altitude settings are correct for installation location requirements See Parameter S...

Page 32: ...intended to describe a complete system It is up to the contractor engineer to determine the necessary components and configuration of the particular system being installed This drawing does not imply...

Page 33: ...lve is connected below the appliance DO NOT place any other valve or shut off device between the pressure relief valve and the water heater If a pressure relief valve discharges periodically this may...

Page 34: ...Specifications with all gas appliances operating Install a proper gas regulator upstream of a water heater if a supply gas pressure is too high 4 Before placing the appliance in operation all joints i...

Page 35: ...appropriate table from the applicable code must be used Table 13 Gas Pipe Sizing Calculation Worksheet Instructions Enter values in empty boxes Rinnai Model Gas Input Additional Appliance Total Gas I...

Page 36: ...160 336 632 1 300 40 12 137 287 541 1 110 50 15 122 255 480 985 60 18 110 231 434 892 80 24 101 212 400 821 100 30 94 197 372 763 Schedule 40 Metallic Pipe Inlet Pressure 11 in wc Specific Gravity 1...

Page 37: ...60 Hz properly grounded wall outlet On external outdoor models a proper disconnect i e on off switch power cord etc must be provided and installed for the incoming 120 V AC power The switch should be...

Page 38: ...he two push buttons A and B on the PC Board 3 Press the A button for 1 second 4 Use the Up and Down buttons on the controller to select a setting number see Parameter Settings Table below 5 Once the d...

Page 39: ...ng that it is time to flush and service the water heater Selection is installers preference based on wa ter conditions or other factors that may influence the suggested interval of service See the Con...

Page 40: ...ged of all debris and the filter cleaned Have you verified the hot and cold water lines to the tankless water heater are not interchanged Does the water supply to the heater have adequate pressure Is...

Page 41: ...y sized Did you verify the water heater is rated for the gas type supplied Have you performed a gas line and connection leak test Did you install a manual gas control valve in the gas line to the wate...

Page 42: ...place any part of the control system and any gas control which has been under water Should overheating occur or the gas supply fail to shut off turn off the manual gas shut off control valve to the ap...

Page 43: ...ervice technician or gas supplier TURN OFF GAS TO APPLIANCE 1 Set the temperature controller to lowest setting 2 Turn off all electric power to the appliance if service is to be performed 3 Turn the m...

Page 44: ...e the beeps when keys are pressed press and hold both the Up and Down buttons at the same time until a beep is heard approximately 5 seconds Then release both buttons To turn on the beeps repeat the a...

Page 45: ...eater is off press the On Off button to turn on 2 If multiple controllers are installed the Priority button when selected will enable that controller to function Note Priority can only be changed when...

Page 46: ...se models have a default maximum temperature of 120 F 49 C and an option to increase the maximum temperature to 140 F 60 C Refer to section 4 10 1 Parameter settings for further details Do not use the...

Page 47: ...on 0 Mid 1 Open 2 Closed 08 Inlet Temperature F 09 Fan Current x10 mA 10 Total Bath Fill Amount Gallons 11 HEX Outlet Temp F 12 By Pass Flow Control Position Degrees of opening 14 Intake Thermistor Te...

Page 48: ...st Check all vent components for proper connections Ensure vent length matches with the vent lengths set in the parameter settings Verify High Altitude setting are set properly See Parameter Setting C...

Page 49: ...nsure 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 fo...

Page 50: ...ensor 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 Elec...

Page 51: ...the SS code push the On Off button on the temperature controller 5 times in 5 seconds See Electrical Diagnostics on Technical Data Sheet located on inside front cover of water heater NO CODE Nothing...

Page 52: ...Refer to the Crossover Mode section of this manual for additional details NOTE Thermal Bypass Valve should only be used for Crossover Mode Recirculation systems Only one Rinnai approved thermal bypass...

Page 53: ...thermal bypass valve purchased separately at the furthest fixture in the plumbing system General Guidelines For the licensed installer professional For installation in commercial and residen tial dom...

Page 54: ...ossover Mode Gas Supply Line Cold Water Supply Line Hot Water Fixtures Hot Water Supply Line Install thermal bypass valve at the furthest fixture from the tankless water heater Figure 83 Figure 84 A t...

Page 55: ...my Factory Default Adjust parameter setting to 05A for Economy mode This mode cycles the pump less often using less energy to maintain the circulation loop temperature Comfort Adjust parameter setting...

Page 56: ...ThermaCirc360 Recirculation Dedicated Mode Plumbing Diagram Dedicated Mode Hot Water Supply Line Hot Water Fixtures Cold Water Supply Line Locate Drain Valve as close as possible to the Cold Water Sup...

Page 57: ...ting pipe length 05 Recirculation Modes Economy Factory Default Adjust parameter setting to 05A for Economy mode This mode cycles the pump less often using less energy to maintain the circulation loop...

Page 58: ...tribution plate bottom DO NOT use a wet cloth or spray cleaners on the burner DO NOT use volatile substances such as benzene and thinners they may ignite or fade the paint 6 Use soft dry cloth to wipe...

Page 59: ...of snow and ice The water heater will not function properly if the combustion air or exhaust vent pipes are blocked or partially blocked by obstructions Keep the condensate drain line free of snow and...

Page 60: ...No liability is assumed for any issues resulting from the use of this information Note See section 6 3 Draining the Water Heater for detailed instructions on Draining the water heater Running a low v...

Page 61: ...solution 8 Open both isolation valves V1 and V2 on the hot water and cold water lines 9 Restore power to the water heater for 20 30 sec this will open the water flow servo 10 Disconnect electric power...

Page 62: ...ose the hot and cold drain valves 3 Open the cold and hot water isolation valves 4 Connect power to the water heater and tighten the inlet water filter and drain plug 5 Open a tap and confirm that wat...

Page 63: ...ng building or structure served by the side wall horizontal vented gas fueled equipment It shall be the responsibility of the property owner to secure the services of a trained and qualified professio...

Page 64: ...64 Rinnai Tankless Water Heater Installation and Operation Manual 7 2 WiringDiagram Figure 94 PC Board...

Page 65: ...Rinnai Tankless Water Heater Installation and Operation Manual 65 7 3 LadderDiagram Figure 95...

Page 66: ...p Curve Figure 97 Water Flow Curve Water Flow GPM Delta T Temperature Rise F 0 20 40 60 80 100 120 140 160 0 5 10 15 20 25 30 35 40 45 50 55 60 0 1 2 3 4 5 6 7 8 9 10 11 Pressure Loss ft of Head Press...

Page 67: ...n and Operation Manual 67 7 4 1 REP199i e Pressure Drop Curve Water Heater Pump 7 4 2 REP160i e Pressure Drop Curve Water Heater Pump Figure 98 Pump Flow Curve 199i e Figure 99 Pump Flow Curve 160i e...

Page 68: ...cable length from each temperature controller to the water heater depends on the total number of wired controllers connected to the water heater Number of Wired Controllers Maximum Cable Length for E...

Page 69: ...onable labor charges associated with the repair or replacement of any such part or component during the term of the labor warranty period All repair parts must be genuine Rinnai parts All repairs or r...

Page 70: ...te has been defaced This Limited Warranty does not cover any product used in an application that uses chemically treated water such as a pool or spa heater Limitation on Warranties No one is authorize...

Page 71: ...Rinnai Tankless Water Heater Installation and Operation Manual 71 NOTE...

Page 72: ...100000726 04 6 2022 Rinnai America Corporation 103 International Drive Peachtree City GA 30269 Tel 1 800 621 9419 Web rinnai us rinnai ca...

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