Rinnai REHP Series Installation And Operation Manual
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Rinnai REHP Series Installation And Operation Manual

Rinnai REHP Series Installation And Operation Manual

Electric heat pump water heater
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  • Page 2: Table Of Contents

    5.12 Electrical Connection ......................20 5.13 Insulation Blanket ........................23 5.14 Hot and Cold Pipe Insulation Installation ................24 5.15 Ducting Requirement ......................24 6. Operating Instruction ......................25 6.1 Start-Up Information ........................25 6.2 Operation ..........................26 6.3 Engineering Channel ........................33 Rinnai Electric Heat Pump Water Heater Manual...
  • Page 3 9.1 CTA Module Set-Up ........................42 9.2 Demand Response (CTA-2045) Installations ................43 9.3 Replacement Parts ........................44 9.4 Thermal Cut-off Reset Instructions ..................46 9.5 Wiring Diagram ........................47 9.6 Warranty ..........................48 Rinnai Electric Heat Pump Water Heater Manual...

  • Page 4: For Your Records

    Thank you for purchasing a Rinnai Electric Heat Pump Water Heater. Before installing and operating this water heater, please read these instructions completely to familiarize yourself with the water heater’s features and functionality. This manual offers the installer essential recommendations and basic instructions for correctly installing and adjusting the water heater.
  • Page 5 145°F (63°C) Less than 3 seconds Indicates an imminently hazardous situation which, if not avoided, will result 150°F (65°C) About 1 1/2 seconds in personal injury or death. 155°F (68°C) About 1 second Rinnai Electric Heat Pump Water Heater Manual...
  • Page 6 ASSE heater was factory preset at 120°F (49°C) 1017, the Standard for Temperature before it was shipped. Actuated Mixing Valves for Hot Water Distribution Systems. Rinnai Electric Heat Pump Water Heater Manual...

  • Page 7: Safety

    • DO NOT connect other plumbing to the from a qualified service technician or your T&P plumbing; it must go directly to a local electric utility. suitable open drain. Rinnai Electric Heat Pump Water Heater Manual...
  • Page 8 • Always completely secure the battery compartment. If the battery compartment does not close securely, stop using product, remove the batteries, and keep them away from children. Rinnai Electric Heat Pump Water Heater Manual...
  • Page 9 WARNING Before commencing maintenance, ensure that all power to the unit is disconnected. Neglecting to do so may lead to electrical shock, causing significant personal injury or even death. Rinnai Electric Heat Pump Water Heater Manual...
  • Page 10 The liquid refrigerant is then directed to a filter dryer, followed by an expansion valve that diminishes the prevailing pressure. The refrigerant is subsequently guided back to the evaporator, initiating the cycle again. Figure 3 Rinnai Electric Heat Pump Water Heater Manual...

  • Page 11: Top View

    Included Items with Unit Drain Pipe • Accessories The Rinnai Electric Heat Pump Water Heater is designed for indoor installation only. The appliance extracts heat from the ambient air and provides it to the water in the DHW tank with added electric power. The amount of...
  • Page 12 Temperature Rating Certifications NEEA, AHRI, ANSI, and UL Energy Star Certified Tank & All Other Parts & Components: 10 Years. Reasonable Labor: 1 Year. See Section 9.6, page 48 Warranty for Complete Details Rinnai Electric Heat Pump Water Heater Manual...
  • Page 13 DRAINAGE PIPE • Installation and Operation Manual (this manual) PART #: 107000674 The following optional accessories are available for the Rinnai Electric Heat Pump Water Heater. Figure 7 EHPWH LEAK KIT EHPWH DUCTING KIT PART #: 103000120 PART #: 103000119...

  • Page 14: Additional Clearances

    Where such areas cannot be avoided, it is recommended that a suitable Front drain pan, adequately drained, be installed Side under the water heater. Rinnai Electric Heat Pump Water Heater Manual...
  • Page 15 Figure 11. Figure 11 Front View Top View No Additional Ventilation Needed: For room size: Larger than 700 ft (i.e. 7’ X 10’ 12” Max. X 10’). Illustrated in Figure 10. Door Rinnai Electric Heat Pump Water Heater Manual...
  • Page 16 A - Diameter of water Figure 13 heater plus 4” min. B - Maximum 2” The drain line should be at least 3/4” ID and pitched for proper drainage. Rinnai Electric Heat Pump Water Heater Manual...

  • Page 17: Thermal Expansion

    Operating temperature range of cold (inlet) water is 48°F (9°C) to 110°F (43°C). • Operating pressure range is 43.5 psi (300 kPa) to 150 psi (1034 kPa). • Water flow rate should be from 0.88 gpm (0.2 m /h) to 3.08 gpm (0.7 m /h). Rinnai Electric Heat Pump Water Heater Manual...
  • Page 18 NOTICE The condensate produced by this unit is non-acidic and does not require a condensate neutralizer. Figure 14 Clamp (Provided) Flexible Drainage Pipe (Provided) Drainage Connection Rinnai Electric Heat Pump Water Heater Manual...

  • Page 19: Condensate Drain

    (by gravity) of the relief valve and discharge pipe. The end of the discharge pipe should not be threaded or concealed and should be protected from freezing. No valve of any type, restriction or reducer coupling should be installed in the discharge piping. Rinnai Electric Heat Pump Water Heater Manual...
  • Page 20 DO NOT operate the water heater again if it has been exposed to fire, flood, or physical damage, until it has been inspected by a qualified service technician. Rinnai Electric Heat Pump Water Heater Manual...

  • Page 21: Electrical Connection

    5. As shown in Figure 17, connect Line 1 (L1), Line 2 (L2) and ground wire on the terminal block. 6. Mount back the junction box cover. Junction Box Access Figure 16 Junction Box Cover CTA-2045 Module (Not supplied) Conduit Connector 3 X Screws Rinnai Electric Heat Pump Water Heater Manual...
  • Page 22 NOTE: When sizing the breaker and wire for over current protection, include an additional 500W to the upper element wattage rating. This will account for the maximum amperage draw of the compressor and fan motor. Rinnai Electric Heat Pump Water Heater Manual...

  • Page 23: Insulation Blanket

    • DO NOT conceal the Controller Assembly, T&P valve, or drain valve. • Frequently inspect the insulation blanket. Figure 18 Horizontal Air Fil- ter (20” Clearance recommended on top) Display & Controller Air Outlet Opening Rinnai Electric Heat Pump Water Heater Manual...
  • Page 24 Please refer a separate instructions provided with EHPWH Ducting Kit - 103000120 (Accessory) for all ducting requirements. NOTICE DO NOT skip the ducting requirement document if any kind of ducting is installed. Ducting installation must follow all ducting requirements as mentioned in the separate instructions. Rinnai Electric Heat Pump Water Heater Manual...
  • Page 25 After activation, it requires manual resetting. Refer Section 9.4, page 46 for resetting instructions. CAUTION A qualified service technician must investigate the cause of high-temperature and take corrective actions before putting the water heater back into operation. Rinnai Electric Heat Pump Water Heater Manual...
  • Page 26 The temperature regulation will not be performed until after Dry- Fire detection testing indicates that there is sufficient water in the tank. • Refer table 6 and 7 to understand display icons and available operations on this appliance. Rinnai Electric Heat Pump Water Heater Manual...

  • Page 27: Operation

    Figure 20 Display Operation Figure 21 shows all the available icons on the display. Refer Table 6 for detailed explanation of each icon. Figure 21 Rinnai Electric Heat Pump Water Heater Manual...
  • Page 28 It flashes to remind the user to maintain the water tank. High temp. Alert: If water temp is higher than 122°F (50°C), it lights up. Self Cleaning Alert: It lights up when the tank is self-cleaning. Rinnai Electric Heat Pump Water Heater Manual...
  • Page 29 72 hours, it will automatically change Adjust vacation days (1-360 days) back to ECONOMY mode (when 72 hours Switch to HYBRID mode is the power on time) Switch to E-HEATER mode Switch to ECONOMY mode Rinnai Electric Heat Pump Water Heater Manual...
  • Page 30 “selected” and the slow indicates “not selected”, after pressing on the confirmation button , you can copy the setting of the base day to the selected day; *You can enter the timer setting in both power-on and power-off state. Rinnai Electric Heat Pump Water Heater Manual...
  • Page 31 It is used to restore timer to default values and can be used to delete other selected data. Return It is used to return to previous setting/screen. CONFIRM/UNLOCK If screen and buttons are unlocked, press it to upload setting parameters after adjusting any parameter. Rinnai Electric Heat Pump Water Heater Manual...
  • Page 32 Figure 22 • ECONOMY (Default) • HEAT-PUMP • VACATION • HYBRID • E-HEATER Table 9 Mode Efficiency Recovery Vacation High Hybrid Very Low Very High E-Heater Economy High (Default) Very High Very Low Heat-Pump Rinnai Electric Heat Pump Water Heater Manual...
  • Page 33 NOTICE: DO NOT change the default setting unless used for troubleshooting. 0: Invalid (Permanently turns off current detection function) Engineering Current Detection Switch 1: Valid (default) Channel 16 NOTICE: DO NOT change the default setting unless used for troubleshooting. Rinnai Electric Heat Pump Water Heater Manual...
  • Page 34 1：on (Valid only once) (heats up tank water to 150°F Channel 39 (65°C)) 0：off (No Duct installed) (default) 1：on (Duct installed) Engineering Duct Setting NOTICE: Must set to “ON” when duct kit Channel 40 (103000120) is installed. Rinnai Electric Heat Pump Water Heater Manual...
  • Page 35 Refer table on the T&P valve, located on the side of the 14 to order element heater replacement part. water heater, at least once a year to confirm its Rinnai Electric Heat Pump Water Heater Manual...
  • Page 36 It may need to be replaced earlier mounting screws around TCO switch to ensure than recommended time). TCO switch works fine. If it fails continuity test, replace the TCO switch. Refer table 14 to order TCO replacement part. Rinnai Electric Heat Pump Water Heater Manual...
  • Page 37 Scenario 3: Check if electric heating switch parameter is set correctly. Engineering channel 6 should be set to “ 1 ”. Rinnai Electric Heat Pump Water Heater Manual...
  • Page 38 No of Electric heaters ( 0 : one e-heater or 1 : two e-heaters) N/A (Default: 2) Last error code Error Code last error code Error Code last error code Error Code Maintenance time days Set (target) Temperature °F/°C End of the performance list Rinnai Electric Heat Pump Water Heater Manual...
  • Page 39 2. Disconnect and reconnect CN29 connector on the TH fail, ONLY suction main PCB. EH5H heat pump temperature 3. Inspect wire for damage. stops sensor (TH) failure. 4. If the error persists, contact a qualified person to replace temperature sensor. Rinnai Electric Heat Pump Water Heater Manual...
  • Page 40 2. Turn off electrical power at breaker. ONLY Heat PH21 current protection 3. Inspect wire for damage. Pump Stops (too high) 4. If the error persists, contact a qualifies person to replace temperature sensor. Rinnai Electric Heat Pump Water Heater Manual...
  • Page 41 Check if the shut-off valve connector is connected. Ensure that the shut-off valve motor assembly is Shut-off Shut-off valve FC06 properly secured to valve. Valve closes malfunction If it does not work properly, contact a qualified person. Rinnai Electric Heat Pump Water Heater Manual...
  • Page 42 Cover (CTA 2045) CTA-2045 Module (Not supplied) Conduit Connector NOTICE A CTA2045 compliant Module can be connected to the water heater’s connection port. Follow the instructions from the CTA2045 Module supplier for initial startup. Rinnai Electric Heat Pump Water Heater Manual...
  • Page 43 Domestic hot water Nominal 3/4” size mixing or Supply to house tempering valve (refer to warning above). Follow mixing or tempering valve manufacturer's instructions for installation of the valve Hot Water Outlet Cold Water Outlet Rinnai Electric Heat Pump Water Heater Manual...
  • Page 44 FLAMMABLE CONTENTS UNDER PRESSURE. The compressor is not a serviceable part. The compressor wiring terminals may are allowing pressurized refrigerant and oil to escape, ignite and cause serious bodily injury, severe burns or death. Figure 29 Rinnai Electric Heat Pump Water Heater Manual...
  • Page 45 30.6 Element Heater 105002064 30.7 T&P Valve 107000677 30.8 Water Temperature Sensor 105002069 30.9 Drain Valve 107000678 30.11 Anode Rod 107000679 107000680 30.12 Water Outlet J-Tube 107000675 30.13 Water Inlet Pipe Assembly 107000676 Rinnai Electric Heat Pump Water Heater Manual...
  • Page 46 3. Remove one screw holding insulating cover to gain access to TCO/ water temperature sensor/heating element. necessary. 5. Remount the insulation cover, TCO cover, and turn on the electrical power at breaker. Rinnai Electric Heat Pump Water Heater Manual...
  • Page 47 Figure 31 Rinnai Electric Heat Pump Water Heater Manual...
  • Page 48 Rinnai’s sole discretion. The warranty claim for product parts and labor may be denied if a component or product returned to Rinnai is found to be free of defects in material or workmanship; damaged by improper installation, use or operation;...
  • Page 49 Limited Warranty. If you purchase a Rinnai product from an unauthorized dealer, or if the original factory serial number has been removed, defaced or altered, your Rinnai warranty will not be valid.

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