LG R5TT20F-SA1 Engineering Product Data Book

LG R5TT20F-SA1 Engineering Product Data Book

Heat pump water heater

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Heat Pump Water Heater
July
16
Printed in
.
. 2020

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Table of Contents
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Summary of Contents for LG R5TT20F-SA1

  • Page 1 Heat Pump Water Heater July Printed in . 2020...
  • Page 2 Heat Pump Water Heater 134a 0 Hz (R Models Line Up Nomenclature Specification Function List Dimensional Drawings Wiring Diagrams Refrigerant Cycle Diagrams Capacity Tables Capacity Coefficient Factor Operation Range 11. Electric Characteristics 12. Sound Levels (Reference Data) 13. Carrying Method 14.
  • Page 3: Models Line Up

    Heat Pump Water Heater - 50 Hz ( R134a) 1. Models Line Up Water tank Category Picture Chassis Model Name capacity [L] R5TT20F-SA1...
  • Page 4 Capacity Ex. “20” → 200 liters Indoor unit platform F: Frontier Outdoor unit platform -: Packaged (No outdoor unit) S: Frontier Silver Look/Color B: Frontier Black Function A: Smart function + Hybrid mode Serial No. LG Model Development Serial No.
  • Page 5: Specifications

    BLDC Compressor Oil Type / Maker POE (RB68A) / Sun Oil or Jx Nippon Oil Charge O.L.P. Name Manufacturer / Country of Origin LG Electronics / China Type Propeller Fan Motor Type BLDC Motor Output Material, Tube / Fin Cu / Al Fin Spacing 21 (Φ...
  • Page 6 Heat Pump Water Heater - 50 Hz ( R134a) 3. Specifications WH20S.F5 Buyer Model Set (Indoor / Outdoor) Unit Factory Model R5TT20F-SA1 Minimum Circuit Ampacity 15.1 Circuit Breaker Power Supply Cable 19, 12.7 Drain Hose Size 3/4, 1/2 Type R134a...
  • Page 7: Function List

    Heat Pump Water Heater - 50 Hz (R134a) 4. Function List Category Function Description Prefilter (Washable / Anti‐Bacteria) Capture dust particles over 10μm in size and finer bacteria Purifying Self Diagnosis Self‐diagnostic for product protection Reliability De‐ice Control (Defrost) In this mode, de‐icing of the evaporator automatically HeatPump This mode minimizes power consumption by using only heat pump for heating. This mode provides relatively low power consumption and high recovery.  Auto This mode primary uses heat pump for heating This mode is factory set mode for shipping This mode provides the highest recovery.  Turbo This mode uses heat pump and heating element simultaneously This feature is recommended when the water heater is not in used for an extended period of time. Vacation In this mode, tank temperature will be maintained at about 68°F to minimize energy consumption and prev ent the water heater from freezing. Convenience Schedule The Custormer can set up the operation time and mode based on their Demand Condition. Auto Restart Operation If power is resupplied after blackout, product restart automatically If there is a temperature difference between room temperature and desired temperature, you can use this ...
  • Page 8: Dimensional Drawings

    Heat Pump Water Heater - 50 Hz ( R134a) 5. Dimensional Drawings R5TT20F-SA1...
  • Page 9: Wiring Diagrams

    Heat Pump Water Heater - 50 Hz ( R134a) 6. Wiring Diagrams R5TT20F-SA1...
  • Page 10: Refrigerant Cycle Diagrams

    Heat Pump Water Heater - 50 Hz (R134a) 7. Refrigerant Cycle Diagrams Heating Defrosting Compressor Heat Exchanger Heat (Condenser) Exchanger (Evaporator) Water Tank Description PCB Connector Thermistor for discharge pipe temperature CN_TH2 Thermistor for evaporating temperature CN_TEMP_AIR Thermistor for indoor air temperature CN_TEMP_AIR Thermistor for suction pipe temperature CN_TH1...
  • Page 11: Capacity Table

    Heat Pump Water Heater - 50 Hz (R134a) 8. Capacity Tables 8.1 Capacity table 1) COP Setting temp.(℃) Initial Ambient  water tank  Auto Mode Heat pump Mode Turbo Mode temp. temp.(℃) 1.77 1.52 1.32 1.16 1.05 0.99 2.72 2.64 2.51 2.33 2.12 1.86 1.76 1.52 1.32 1.16 1.05 0.99 2.57 2.49 1.54 1.38 1.27 1.21 2.57 2.49 2.36 2.19 1.97 1.71...
  • Page 12: Performance Graph

    Heat Pump Water Heater - 50 Hz (R134a) 8. Capacity Tables 8.2 Performance Graph Ambient Recovery Time (hour) COP of High Draw COP of Low Draw Temperature ℃ Auto Turbo Auto Turbo Auto Turbo 5.66 9.39 5.46 1.12 2.25 1.12 1.69 1.69 1.50...
  • Page 13 Heat Pump Water Heater - 50 Hz ( R134a) 9. Capacity Coefficient Factor 9.1 Capacity Change Rate (%) Duct Length ( 1m ) Model Duct Type. Diameter Not Ducted Φ200 Φ150 R5TT20F-SA1 COP(%) 100.0% 96.7% 92.0%...
  • Page 14 Heat Pump Water Heater - 50 Hz ( R134a) 9. Capacity Coefficient Factor 9.2 Maximum Duct Length Diameter(Φ) Model Duct Type. Φ200 Φ150 Φ160 R5TT20F-SA1 Flexible Duct Length(m)
  • Page 15: Operation Range

    Heat Pump Water Heater - 50 Hz (R134a) 10. Operation Range R5TT20F-SA1 Heater Only H/P or H/P + Heater Heater Only Water Temperature (℃) Note The figures are baseed on the following condtitions : No ducted...
  • Page 16: Electric Characteristics

    Heat Pump Water Heater - 50 Hz (R134a) Electric Characteristics R5TT20F-SA1 / WH20S.F5 Unit Power Compressor Model Indoor Unit Voltage Range Type Hz Voltage Cool Heat Min : 195 R5TT20F-SA1 / WH20FS.F5 15.1 15.0 0.22 Inverter Max : 265 Note 1.
  • Page 17: Sound Pressure Level

    12. Sound Levels (Reference Data) 12.1 Sound Pressure Level Heating Model Auto Turbo/HeatPump R5TT20F-SA1 (40) (42) Note ‐ Sound measured at 1 m away from the unit. ‐ Data is valid at free field condition. ‐ Data is valid at nominal operation condition.
  • Page 18 Heat Pump Water Heater - 50 Hz (R134a) 12. Sound Levels (Reference Data) 북미 기준 R5TT20F-SA1 1m, 2m기준으로 재측정 예정 Heating ▲ Turbo/HeatPump ● Auto NC-65 NC-60 NC-55 NC-50 NC-45 NC-40 NC-35 NC-30 NC-25 Approximate NC-20 Hearing Threshold NC-15 1000...
  • Page 19 Heat Pump Water Heater - 50 Hz (R134a) Carrying Method • Moving or installation of the appliance requires two or more people. • Make sure you both have a good grip before lifting. • Use an appliance dolly with strap to move the water heater.
  • Page 20: Installation

    Heat Pump Water Heater - 50 Hz (R134a) 14. Installation Safety Instructions READ ALL INSTRUCTIONS BEFORE USE Your safety and the safety of others are very important. We have provided many important safety messages in this manual and on your appliance. Always read and follow all safety messages.
  • Page 21: Safety Precaution

    Heat Pump Water Heater - 50 Hz (R134a) 14. Installation Safety Precaution Water Temperature Setting DANGER Water temperature above 50°C can cause severe burns instantly or death from scalding. Be sure to read and follow the warnings on the label pictured below. 50°C NOTE For determining the proper water...
  • Page 22: Local Installation Regulations

    Heat Pump Water Heater - 50 Hz (R134a) 14. Installation DANGER Higher water temperature increases the potential for Hot Water SCALDS Water temperature in the heater is regulated by the buttons on display. The water temperature of this water heater is factory set to 50°C to comply with safety regulations. For information about adjusting the water temperature, refer to the operation section in this manual.
  • Page 23: Important Safety Instructions

    Heat Pump Water Heater - 50 Hz (R134a) 14. Installation Important Safety Instructions WARNING To reduce the risk of explosion, fire, death, electric shock, scalding or injury to persons when using this product, follow basic precautions, including the following: Children in the Household: This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their...
  • Page 24 Heat Pump Water Heater - 50 Hz (R134a) 14. Installation • This appliance must be positioned near to an electrical power supply. Use a power supply of 1.5 mm or more in the nominal cross-sectional area • Do not install the water heater on an unstable surface or in a place where there is danger of it falling.
  • Page 25 Heat Pump Water Heater - 50 Hz (R134a) 14. Installation • Do not expose people, animals, or plants to the cold wind from the water heater for extended periods of time. • Take care to ensure that power cable could not be pulled out or damaged during operation. There is risk of fire or electric shock.
  • Page 26 Heat Pump Water Heater - 50 Hz (R134a) 14. Installation • Install the product so that the noise or hot wind from the appliance may not cause any damage to the neighbors. Otherwise, it may cause dispute with the neighbors. •...
  • Page 27: Parts And Functions

    Heat Pump Water Heater - 50 Hz (R134a) 14. Installation INSTALLATION Parts and Functions Top cover Air intake vents Junction box Air filter Front panel Display décor / Control panel Upper element cover Front décor Lower element cover Heating element Opening for drain valve Water inlet Opening for T&P relief valve...
  • Page 28: Installation Tools

    Heat Pump Water Heater - 50 Hz (R134a) 14. Installation Installation Tools Figure Name Figure Name Screw driver Teflon tape Spanner Level Multi-meter Accessories Included Accessories: Figure Name Figure Name Drain valve T&P relief valve Recommended Accessories: Figure Name Figure Name Thermal Drain pan...
  • Page 29: Installation Instructions

    Heat Pump Water Heater - 50 Hz (R134a) 14. Installation Installation Instructions Ceiling 0.5m Minimum clearance for installation or service. Air filter Display Secondary condensate Primary condensate drain line (1/2” PVC) drain line (3/4” PVC) Hot water outlet T&P relief valve and discharge line Flexible connection recommended...
  • Page 30: Select The Best Location

    Heat Pump Water Heater - 50 Hz (R134a) 14. Installation Select the best Location Minimum Clearances NOTE Minimum room size: • Installation in a confined space without proper 700 ft ventilation will lead to higher power consumption. 1.5ft(45cm) • Auxiliary drain pan MUST be installed in compliance with local codes.
  • Page 31: Unpacking And Removing Shipping Bolts

    Heat Pump Water Heater - 50 Hz (R134a) 14. Installation Thermal Expansion Unpacking and Removing Shipping Bolts Determine if a check valve is present on the inlet water line. Check with your local water utility. A check valve located in cold water inlet line will NOTE create a “closed water system”.
  • Page 32 Heat Pump Water Heater - 50 Hz (R134a) 14. Installation Installing T&P Relief Valve - The end of the discharge pipe should not be threaded or concealed and should be protected from freezing. Use T&P relief valve included in packing. - Do not insert or install any type of valve, Apply Teflon tape on the G end to prevent restriction, or reducer coupling in the discharge...
  • Page 33: Installing Condensate Drain Lines

    Heat Pump Water Heater - 50 Hz (R134a) 14. Installation * The water may drip from the discharge pipe Apply Teflon tape on the G end to prevent of the pressure-relief device and that this pipe leaking. must be left open to the atmosphere. * The pressure-relief device is to be operated regularly to remove lime deposits and to verify that it is not blocked.
  • Page 34: To Fill The Water Heater

    Heat Pump Water Heater - 50 Hz (R134a) 14. Installation Connecting the Water For ease of disconnecting the water heater for service or replacement, the installation of Supply unions is recommended on the water connections. NOTE • DO NOT directly solder or braze to hot or cold water connections.
  • Page 35: Making Electrical Connections

    Heat Pump Water Heater - 50 Hz (R134a) 14. Installation Making Electrical The water heater must be permanently powered Connections by electricity to ensure correct operation of the impressed current titanium anode (ICCP). Do not turn on power until water heater is WARNING completely filled.
  • Page 36: Safety Controls

    Heat Pump Water Heater - 50 Hz (R134a) 14. Installation Safety Controls Insulation Blanket Kits External insulation blanket, available to the general public, for water heater is not CAUTION necessary. You must have a qualified person investigate the cause of the high The manufacturer’s warranty does not cover any temperature condition and take damage or failure caused by installing or using...
  • Page 37: Installation Checklist

    Heat Pump Water Heater - 50 Hz (R134a) 14. Installation Installation Checklist Location Sufficient room for air exchange and periodic service. Floor is strong enough to support water heater. Indoor and protected from high corrosive elements. Close to the area of heater water demand. Over 1 °C Area free of flammable liquids and gases.
  • Page 38: Display Screen

    To select the heat pump mode. To select the auto mode. To select the turbo mode. To select the Vacation mode. Set schedule mode only in LG ThinQ application. To select the Anti Legionella mode. To set the desired water temperature.
  • Page 39: Water Temperature Adjustment

    Heat Pump Water Heater - 50 Hz ( R134a) . Controller Water Temperature Adjustment SCHEDULE MODE This mode can set only in LG ThinQ application. You can escape this mode by pressing any button on the water heater. DANGER ANTI-LEGIONELLA MODE...
  • Page 40: Smart Functions

    LG ThinQ • LG ThinQ is not responsible for any network application and register it again. connection problems or any faults, • The application is subject to change for...
  • Page 41 • If the firewall on your wireless router is the LG ThinQ application. enabled, disable the firewall or add an • Launch the LG ThinQ application and select exception to it. the Smart Diagnosis feature in the menu.
  • Page 42: Maintenance

    Heat Pump Water Heater - 50 Hz ( R134a) . Maintenance Draining and Flushing the WARNING Water Heater Turn off the power by opening the Minerals contained in tap water can form lime circuit breaker or removing the fuses deposits. Therefore, it is not uncommon that before you perform any maintenance;...
  • Page 43: Air Filter Maintenance

    Heat Pump Water Heater - 50 Hz ( R134a) . Maintenance Air Filter Maintenance Clean T&P Relief Valve the air filters when “Air filter check ( )” Maintenance alarm appears on the display. DANGER NOTE • The air filter can be broken when it is Before manually operating the relief bended.
  • Page 44 Heat Pump Water Heater - 50 Hz ( R134a) . Maintenance Condensate Drain Shut-down for an Extended Maintenance Period If the water heater will not be used for an Remove the condensate drain lines and extended period of time, turn off the power connections.
  • Page 45: Troubleshooting

    Heat Pump Water Heater - 50 Hz ( R134a) . Troubleshooting Before Calling for Service Please check the following before you contact the service center. If the problem persists, contact your local service center. CAUTION For your safety, Do not attempt to repair of electrical wiring, controls, heating elements or other safety devices.
  • Page 46 Heat Pump Water Heater - 50 Hz ( R134a) . Troubleshooting Problem Possible Causes & Corrective Action The heat pump compressor, fan, or EEV valve is running • This is norma Build up of scale or lime deposits on heating elements may cause Noise rumbling noise •...
  • Page 47: Error Code

    Heat Pump Water Heater - 50 Hz ( R134a) . Troubleshooting Error Code Code Contents Corrective Action Operating status Call our Technical Support Ambient Temp sensor is not working. Use Elements Only Center. Clean Condensate drain. Condensate drain is blocked. See “Condensate Drain Use Elements Only Maintenance”...
  • Page 48: Replacement Parts List

    Heat Pump Water Heater - 50 Hz ( R134a) . Troubleshooting Replacement Parts List Item No. Description Item No. Description Panel Assembly,Front Switch Assembly PCB Assembly,Display Pan Assembly,Drain Compressor Set,China Front decor (Cover,Terminal) Cover Assembly,Top Damper,Compressor Filter Assembly,Air Cleaner Tube Assembly,Reverse Coil,Expansion Cover Assembly,Control PCB Assembly,Power...
  • Page 49 Heat Pump Water Heater - 50 Hz ( R134a) . Troubleshooting CAUTION For your safety, Do not attempt to repair electronic controls, electrical wiring, heat pump, heating elements or other safety devices by yourself. Refer repair to authorized service center. NOTE •...
  • Page 50 Copyright 2019. LG Electronics Inc. All Rights Reserved. The air conditioners manufactured by LG have received ISO9001 certificate for quality assurance and ISO14001 certificate for environmental management system. The specifications, designs, and information in this brochure are subject to change without notice.

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