LG R5TT20F-SA1 Product guide

Heat Pump Water Heater
Printed in July. 16. 2020

Heat Pump Water Heater
- 50 Hz (R134a)
1. Models Line Up
2. Nomenclature
3. Specification
4. Function List
5. Dimensional Drawings
6. Wiring Diagrams
7. Refrigerant Cycle Diagrams
8. Capacity Tables
9. Capacity Coefficient Factor
10. Operation Range
11. Electric Characteristics
12. Sound Levels (Reference Data)
13. Carrying Method
14. Installation
15. Controller
16. Smart Functions
17. Maintencance
18. Troubleshooting

Heat Pump Water Heater - 50 Hz ( R134a)
1. Models Line Up
2
Category Picture Chassis Model Name
Water tank
capacity [L]
RF R5TT20F-SA1 200

2. Nomenclature
3
1 2 3 4 5 6 7 8 9 10 11
R 5 T T 2 0 F - S A 1
Code Type Code of Model Meaning
1Product Type A~Z R: Heat Pump Water Heater
2 Refrigerant 0~9
2: R22
3: R32
4: R410A
5: R134a
6: R290
3 A~Z
T: Packaged
- : Set
N: Indoor unit
U: Outdoor unit
A: C/SKD Indoor unit
B: C/SKD outdoor unit
M: Mock-up
4 Compressor type A~Z T: Inverter Heating Only
W: Inverter Heating & Cooling
5, 6 0~9 Water tank capacity
Ex. “20” → 200 liters
7 A~Z
8
Capacity
Indoor unit platform
Outdoor unit platform A~Z
F: Frontier
-: Packaged (No outdoor unit)
9 Look/Color A~Z S: Frontier Silver
B: Frontier Black
10 Function A~Z
11 Serial No. 1~9
A: Smart function + Hybrid mode
LG Model Development Serial No.
Heat Pump Water Heater - 50 Hz ( R134a)

Heat Pump Water Heater - 50 Hz ( R134a)
3. Specifications
4
Note
• – : No Relation
• For Circuit Breaker Rating, please conform to local standards whenever necessary.
Exteriorcolorcodeisapproximatevalue.
•
•Itisdifficulttomeasureairflowrateofsleepbecauseof smallvalues.
• Maximum heating capacity is for heating operation without any frost.
•Somespecificationsmaybechangedwithoutnotificationsdue toourpolicyofinnovation.
Buyer Model Set (Indoor / Outdoor) Unit WH20S.F5
Factory Model R5TT20F-SA1
Volume L200L
COP (7˚C DB / 6˚C WB)3.30 (A+)
COP (15˚C DB / 12˚C WB)
COP 3.60 (A+)
Daily electrical energy consumption kWh 3.28
V40 L 270
Power Input Upper Element Wattage (230V) W 2,000
Lower Element Wattage (230V) W 2,000
Annual Energy Consumption(AEC) (15˚C DB / 7˚C DB)
Tax Credit -
Power Supply Ø, V, Hz 1Φ,230,50Hz
Available Voltage Range V 195 ~ 265
Indoor
Air Flow Rate H/M ㎥/min 4.4/6.7
RPM H/M - 1000 / 700
Sound Pressure Level dB(A) 38 (COP) 41 (Max)
Sound Power Level dB(A) 55
Dimensions
Net (W x H x D) mm 580 x 1625 x 582
in.22 53/64 x 63 31/32 x 22 29/32
Shipping (W x H x D) mm 738 x 1775 x 690
in. 29 1/16 x 69 7/8 x 27 11/64
Amm 1625
in. 63 31/32
Bmm 580
in. 22 53/64
Cmm 998
in. 39 19/64
Dmm 147
in. 5 25/32
Emm 147
in. 5 25/32
Weight
Net kg 100
lb. 220
Shipping kg 118
lb. 260
Operation Range Heating ℃ DB -5 ~ 48
℉ DB 23 ~ 120
Max. Fuse Size A 13.5
Exterior Color Code - Luxury Silver
Compressor
Type - Twin Rotary
Model - EST092MBA
Motor Type - BLDC
Oil Type / Maker - POE (RB68A) / Sun Oil or Jx Nippon
Oil Charge cc 220
O.L.P. Name - -
Manufacturer / Country of Origin - LG Electronics / China
Fan
Type - Propeller Fan
Motor Type - BLDC
Motor Output W 43
Heat Exchanger
Evaporator
Material, Tube / Fin - Cu / Al
Fin Spacing FPI 21 (Φ 7)
(Φ x Row x Column x FPI/FPDM x L) x No. #1 (Φ 7 x 3 x 15 x 21 x 390) x 1
Corrosion Protection - PCM
Condenser
Material, Tube - Al
(Φ x Row x L) x No. #1 (Φ 8.0 x 1 x 62800) x 1
Corrosion Protection -
702 / 756
No
kWh/annual

3. Specifications
5
Heat Pump Water Heater - 50 Hz ( R134a)
Note
• – : No Relation
• For Circuit Breaker Rating, please conform to local standards whenever necessary.
Exteriorcolorcodeisapproximatevalue.
•
•Itisdifficulttomeasureairflowrateofsleepbecauseof smallvalues.
• Maximum heating capacity is for heating operation without any frost.
•Somespecificationsmaybechangedwithoutnotificationsdue toourpolicyofinnovation.
A
C
DE
B
Buyer Model Set (Indoor / Outdoor) Unit WH20S.F5
Factory Model R5TT20F-SA1
Minimum Circuit Ampacity A 15.1
Circuit Breaker A15
Power Supply Cable No. 3
AWG 14
Drain Hose Size I.D mm 19, 12.7
in. 3/4, 1/2
Refrigerant
Type - R134a
Pre Charge g650
oz. 26
t-CO2eq 0.930
GWP 1430
Additional Charge g/m -
oz./ft. -
Control - Electronic Expansion Valve
Defrost Method - Reverse Cycle
Anode ICCP
(Impressed Current Cathodic Protection)
Foam Insulation inch 1.6 ~ 2.4
T&P Relief Valve -Yes
Water Cnnection Location - side
Water Connection Size inch 3/4
Digital Display -Yes
Wi-Fi -Yes
Tank Warranty year 10

6
Heat Pump Water Heater - 50 Hz (R134a)
4. Function List
Note
• These functions must be applied according to the model. Please refer to the follow ing function list for each model.
•¹ : This function can be operated only w hen the w ired remote controller is connected. The applicability of each function depends on the above table.
• ² : Optional accessories must be purchased separately. If show n as "Embedded", this function is included in product.
• The function Wi-Fi is only compatible w ith 2.4 GHz band. (802.11 b/g/n)
• Some specifications may be changed w ithout notifications due to our policy of innovation.
The air conditioner which DRED is available is capable of DRM1,DRM2 and DRM3 and complies with standard AS/NZS 4755.3.1.
•
Category Function Description
Air
Purifying Prefilter(Washable/Anti‐Bacteria) Capturedustparticlesover10μminsizeandfinerbacteria
Reliability SelfDiagnosis Self‐diagnosticforproductprotection
De‐iceControl(Defrost) Inthismode,de‐icingoftheevaporatorautomatically
Convenience
HeatPump Thismodeminimizespowerconsumptionbyusingonlyheatpumpforheating.
Auto
Thismodeprovidesrelativelylowpowerconsumptionandhighrecovery.
Thismodeprimaryusesheatpumpforheating
Thismodeisfactorysetmodeforshipping
Turbo Thismodeprovidesthehighestrecovery.
Thismodeusesheatpumpandheatingelementsimultaneously
Vacation
Thisfeatureisrecommendedwhenthewaterheaterisnotinusedforanextendedperiodoftime.
Inthismode,tanktemperaturewillbemaintainedatabout68°Ftominimizeenergyconsumptionandprev
entthewaterheaterfromfreezing.
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
TwoThermistorControl¹ Ifthereisatemperaturedifferencebetweenroomtemperatureanddesiredtemperature,youcanusethis
functioninothertopreventinsufficientcoolingandinsufficientheating
OverheatingProtection Ifthereisatemperaturedifferencebetweenroomtemperatureanddesiredtemperature,youcanusethis
functioninothertopreventover‐heating
IndoorUnitDisplayType ‐
IndoorUnitDisplayLight Setthebrightnessofthedisplayontheindoorunit
Anti-legionella
Activates the water disinfection function. The water temperature reaches 60°C during a cycle.
Individual
Control
WiredRemoteController² ‐
HandheldWirelessController ‐
CAC
Network
Function
GeneralCentralController(NonLGAP) ‐
NetworkSolution(LGAP) ‐
DryContact² ‐
PDI(PowerDistributionIndicator)² ‐
OutdoorUnitPI485² ‐
Special
Function
Kit
Wi‐Fi² Easilyaccessandcontrolanwaterheater’sfunctionsfromanywhere
WaterLevelSensorConnection² Detectthewaterlevelindrainpan
CrankCaseHeater Pre‐heatingthecompressorduringwinter
SmartInverterMonitoringSystem(SIMs)² Helpyoutoeasilymonitor,diagnosetheairconditionerandgetaquickresolution
Others TemperatureControl Basiccyclecontrolmethod

5. Dimensional Drawings
R5TT20F-SA1
7
Heat Pump Water Heater - 50 Hz ( R134a)

6. Wiring Diagrams
8
R5TT20F-SA1
Heat Pump Water Heater - 50 Hz ( R134a)

9
Heat Pump Water Heater - 50 Hz (R134a)
7. Refrigerant Cycle Diagrams
577)6$1
M
Compressor
Heating
Defrosting
Th4
Th5 Th3
Th2
Th6
Water
Tank
EEV
Heat
Exchanger
(Condenser) Heat
Exchanger
(Evaporator)
Th1
LOC Description PCB Connector
Th1 Thermistor for discharge pipe temperature CN_TH2
Th2 Thermistor for evaporating temperature CN_TEMP_AIR
Th3 Thermistor for indoor air temperature CN_TEMP_AIR
Th4 Thermistor for suction pipe temperature CN_TH1
Th5 Thermistor for upper water tank temperature CN_TANK_D
Th6 Thermistor for lower water tank temperature CN_TANK_U
*EEV : Electronic Expansion Valve.

10
Heat Pump Water Heater - 50 Hz (R134a)
8.Capacity Tables
8.1 Capacity table
1) COP
2) Power Consumption integ. (kWh)
Recovery Time (hour)3)
H/P + Heater Operating
Heater Only Mode
Ambient
temp.
Initial
watertank
temp.(℃)
Settingtemp.(℃)
AutoMode HeatpumpMode TurboMode
35 40 45 50 55 60 35 40 45 50 55 60 35 40 45 50 55 60
-5℃
10 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
20 2.57 2.49 1.54 1.38 1.27 1.21 2.57 2.49 2.36 2.19 1.97 1.71 1.94 1.73 1.53 1.38 1.27 1.21
30 2.30 2.17 2.00 1.29 1.22 2.30 2.17 2.00 1.78 1.52 2.30 1.53 1.39 1.29 1.22
40 1.78 1.56 1.30 1.78 1.56 1.30 1.78 1.09 1.03
50 0.70 1.04 0.70
20℃
10 1.95 1.87 1.74 1.61 1.47 1.32 4.30 4.10 3.91 3.71 3.50 3.30 1.80 1.72 1.65 1.56 1.48 1.38
20 5.73 5.28 1.97 1.85 1.72 1.57 4.15 3.96 3.76 3.56 3.36 3.15 1.85 1.79 1.72 1.64 1.56 1.47
30 4.79 4.37 3.98 1.95 1.82 3.64 3.44 3.24 3.04 2.83 3.64 1.72 1.65 1.57 1.49
40 3.56 3.21 2.88 2.74 2.54 2.33 2.74 1.52 1.44
50 2.54 1.66 1.66
48℃
10 2.05 2.08 2.02 1.89 1.69 1.40 6.00 5.75 5.51 5.30 5.11 4.94 1.89 1.91 1.88 1.81 1.70 1.54
20 10.07 9.44 2.25 2.13 1.93 1.65 5.66 5.41 5.17 4.96 4.77 4.60 2.12 2.17 2.15 2.08 1.97 1.81
30 8.61 7.99 7.37 1.96 1.68 5.09 4.86 4.65 4.45 4.29 5.09 2.39 2.36 2.25 2.09
40 6.12 5.50 4.88 4.35 4.16 3.99 4.35 2.51 2.38
50 3.22 3.72 3.72
Ambient
temp.
Initial
watertank
temp.(℃)
Settingtemp.(℃)
AutoMode HeatpumpMode TurboMode
35 40 45 50 55 60 35 40 45 50 55 60 35 40 45 50 55 60
-5℃
10 3.06 4.39 5.67 6.90 8.08 9.22 1.85 2.30 2.93 3.75 4.75 5.93 3.07 4.40 5.68 6.91 8.09 9.22
20 1.20 1.65 3.77 5.01 6.19 7.32 1.20 1.65 2.28 3.10 4.10 5.28 1.18 2.51 3.79 5.02 6.20 7.32
30 0.79 1.43 2.24 4.28 5.41 0.79 1.43 2.24 3.25 4.43 0.79 1.87 3.10 4.28 5.41
40 1.19 2.19 3.37 1.19 2.19 3.37 1.19 2.35 3.48
50 1.62 2.11 1.62
20℃
10 2.21 3.08 4.11 5.29 6.62 8.10 1.10 1.44 1.82 2.26 2.74 3.28 2.27 3.21 4.17 5.17 6.21 7.27
20 0.50 0.75 2.36 3.54 4.87 6.35 0.63 0.97 1.35 1.78 2.27 2.81 0.71 1.65 2.62 3.62 4.65 5.71
30 0.36 0.67 1.04 2.95 4.43 0.45 0.84 1.27 1.76 2.30 0.45 1.05 2.05 3.09 4.15
40 0.52 0.94 1.43 0.72 1.20 1.74 0.72 1.52 2.59
50 0.78 1.15 1.15
48℃
10 1.96 2.54 3.33 4.34 5.56 6.99 0.74 0.98 1.24 1.53 1.84 2.17 2.05 2.88 3.70 4.50 5.30 6.09
20 0.25 0.39 1.63 2.64 3.85 5.28 0.43 0.67 0.93 1.22 1.53 1.86 0.41 1.24 2.06 2.87 3.66 4.45
30 0.17 0.33 0.53 2.12 3.54 0.27 0.54 0.82 1.13 1.47 0.27 0.52 1.33 2.13 2.91
40 0.30 0.53 0.79 0.35 0.66 1.00 0.35 0.69 1.48
50 0.54 0.45 0.45
Ambient
temp.
Initial
watertank
temp.(℃)
Settingtemp.(℃)
AutoMode HeatpumpMode TurboMode
35 40 45 50 55 60 35 40 45 50 55 60 35 40 45 50 55 60
-5℃
10 3.90 4.64 5.16 5.62 5.72 6.18 4.96 6.67 7.94 9.05 9.89 10.38 3.60 4.32 4.83 5.29 5.72 6.18
20 3.05 3.88 4.39 4.84 4.87 5.28 3.05 4.67 6.03 7.27 7.56 8.08 2.81 3.52 4.03 4.48 4.87 5.28
30 2.36 3.88 4.30 4.18 4.49 2.36 3.88 5.31 5.29 5.83 2.36 3.43 3.88 4.18 4.49
40 2.42 2.61 3.58 2.42 2.89 3.45 2.42 3.29 3.58
50 1.05 1.05 1.05
20℃
10 3.66 4.22 4.80 5.38 5.96 6.56 2.56 3.29 4.02 4.80 5.57 6.38 2.54 3.04 3.53 4.03 4.51 5.00
20 2.68 3.33 3.91 4.48 5.06 5.66 1.50 2.20 2.91 3.68 4.44 5.25 1.71 2.21 2.69 3.18 3.66 4.14
30 1.81 3.08 3.75 4.33 4.93 1.04 1.74 2.50 3.28 4.09 1.04 1.89 2.37 2.84 3.32
40 2.09 3.53 4.16 1.16 1.94 2.75 1.16 2.03 2.50
50 2.50 1.26 1.26
48℃
10 2.21 2.63 3.01 3.37 3.70 4.03 1.32 1.75 2.28 2.88 3.52 4.17 1.95 2.40 2.89 3.38 3.87 4.36
20 1.60 2.50 2.99 3.47 3.93 4.39 0.80 1.21 1.71 2.27 2.90 3.54 1.22 1.66 2.13 2.60 3.09 3.56
30 1.05 1.76 2.57 3.03 3.49 0.57 1.03 1.56 2.15 2.78 0.57 1.38 1.85 2.32 2.79
40 1.13 1.85 2.61 0.74 1.30 1.91 0.74 1.58 2.04
50 1.31 0.91 0.91

11
8.2 Performance Graph
8. Capacity Tables
Heat Pump Water Heater - 50 Hz (R134a)
Note
1. Allcapacitiesarenet,evaporatorfanmotorheatisdeducted.
2.Directinterpolationispermissible.Donotextrapolate.
3.Capacitiesarebasedonthefollowingconditions:
‐ IndoorAirTemperature:70°F(20.0°C)DB/60°F(14.0°C)WB
0.00
1.00
2.00
3.00
4.00
5.00
6.00
‐5 5 1525 53 4555
COP
H/P
Auto
Turbo
HighDraw ( Heater Operation)
watertanktemp.10℃ →52℃
Ambient temperature(℃)
0.00
1.00
2.00
3.00
4.00
5.00
6.00
‐5 5 15 52 35 54 55
COP
Auto
Turbo
H/P
LowDraw ( No Heater Operation)
watertanktemp.45℃ →52℃
Ambient temperature(℃)
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
9.00
10.00
‐5 5 5215 35 54 55
가열시간(hour)
Airtemperature(℃)
H/P
Auto
Turbo
watertanktemp.10℃ →52℃
Ambient
Temperature Recovery Time (hour) COP of High Draw COP of Low Draw
℃ Auto H/P Turbo Auto H/P Turbo Auto H/P Turbo
-5 5.66 9.39 5.46 1.12 2.25 1.12 1.69 1.69 1.50
-4 5.77 9.06 5.37 1.14 2.30 1.13 1.76 1.73 1.53
0 6.20 7.78 5.01 1.21 2.52 1.20 2.04 1.88 1.65
5 6.74 6.17 4.57 1.42 2.77 1.40 2.11 1.80 1.53
10 6.36 5.81 4.45 1.46 3.06 1.45 2.55 2.08 1.77
15 5.99 5.46 4.34 1.51 3.34 1.49 2.98 2.37 2.01
20 5.61 5.11 4.22 1.55 3.63 1.53 3.42 2.66 2.25
25 5.23 4.76 4.11 1.60 3.91 1.57 3.86 2.95 2.50
30 4.86 4.40 3.99 1.65 4.20 1.61 4.30 3.24 2.74
35 4.48 4.05 3.87 1.69 4.48 1.65 4.73 3.53 2.98
40 4.10 3.70 3.76 1.74 4.77 1.70 5.17 3.81 3.23
48 3.50 3.14 3.57 1.81 5.22 1.76 5.87 4.28 3.61

9. Capacity Coefficient Factor
9.1 Capacity Change Rate (%)
12
Heat Pump Water Heater - 50 Hz ( R134a)
Model
Duct Type. Diameter Not Ducted Φ200 Φ150
R5TT20F-SA1COP(%) 100.0% 96.7% 92.0%
Duct Length ( 1m )

9. Capacity Coefficient Factor
9.2 Maximum Duct Length
13
Heat Pump Water Heater - 50 Hz ( R134a)
Model Duct Type.
Φ200 -Φ160 Φ150
30m ---
Duct Length(m)
FlexibleR5TT20F-SA1
Diameter(Φ)

14
10. Operation Range
Heat Pump Water Heater - 50 Hz (R134a)
R5TT20F-SA1
-30
-20
-10
0
10
20
30
40
50
60
5 15 25 35 45 55 65
Air Temperature(℃)
Water Temperature (℃)
H/P or H/P + Heater
Heater Only
Heater Only
Note
The figures are baseed on the following condtitions : No ducted

15
Heat Pump Water Heater - 50 Hz (R134a)
11. Electric Characteristics
R5TT20F-SA1 / WH20S.F5
Cool Heat
R5TT20F-SA1 / WH20FS.F5
Unit
Type Hz Voltage
Inverter 50 230 Min : 195
Max : 265 15.1 15.0 -- 3.3 43 0.22
Compressor FM
Model
Indoor Unit
Power
MCA MOP MSC RLA W FLAVoltage Range
Note
1. Voltage range
Voltage supplied to the unit terminals should be within the minimum and maximum range.
2. Maximum allowable voltage unbalance between phase is 2 %.
3. Select wire spec. based on the larger value of MCA.
4. RLA is measured during each individual compressor test condition.
5. OFM is measured as the outdoor unit test condition.
6. Recommended circuit breaker is ELCB. (Earth Leakage Circuit Breaker)
MCA : Minimum Circuit Amperes (A)
MOP : Maximum Rating Over Current Protective Device (A)
MSC : Maximum Starting Current (A)
RLA : Rated Load Amperes (A)
FM : Fan Motor
W : Fan Motor Rated Output (W)
FLA : Full Load Amperes (A)

16
Heat Pump Water Heater - 50 Hz (R134a)
12. Sound Levels (Reference Data)
12.1 Sound Pressure Level
Auto Turbo/HeatPump
R5TT20F-SA1(40) (42)
Model Heating
Note
‐ Sound measured at 1 m away from the unit.
‐ Data is valid at free field condition.
‐ Data is valid at nominal operation condition.
‐ Reference acoustic pressure 0dB=20μPa.
‐ Sound level will vary depending on a range of factors such as the construction(acoustic absorption coefficient) of particular room in which the equipment is
installed.
‐ The operating conditions are assumed to be standard.
‐ Sound pressure level is measured on the rated condition in the anechoic rooms by ISO 3745 standard.
‐ Sound level is measured in an anechoic room and may be different according to the test condition or equipment.
TBD

17
Heat Pump Water Heater - 50 Hz (R134a)
12. Sound Levels (Reference Data)
R5TT20F-SA1
Heating
10
20
30
40
50
60
70
80
63 125 250 500 1000 2000 4000 8000
Octave Band Sound Pressure Level ( 0 dB = 20μPa )
Octave Band Center Frequency (Hz)
▲ Turbo/HeatPump
●Auto
NC-15
NC-20
NC-25
NC-30
NC-35
NC-40
NC-45
NC-50
NC-55
NC-60
NC-65
Approximate
Hearing
Threshold
북미 기준
1m, 2m기준으로 재측정 예정

13. Carrying Method
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Heat Pump Water Heater - 50 Hz (R134a)
• 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.

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14. Installation
WARNING
To reduce the risk of explosion, fire, death, electric shock, injury or scalding to persons,
instructions in this manual must be followed.
Be sure to fully understand the user’s manual before you install and operate this
appliance. If you have any difficultly in understanding or following the instructions in this
manual, or have any questions, contact an authorized service center or the local electric
utility.
!
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.
This is the safety alert symbol.
This symbol alerts you to potential hazards that can kill or injure you and others.
All safety messages will follow the safety alert symbol and either the word DANGER,
WARNING or CAUTION. These words mean:
!CAUTION
You may be slightly injured or cause damage to the product if you do not follow instructions.
!WARNING
You may be killed or seriously injured if you do not follow instructions.
!DANGER
This indicates that the failure to follow the instructions will cause serious injury or death.
All safety messages will tell you what the potential hazard is, tell you how to reduce the chance
of injury, and tell you what may happen if the instructions are not followed.
Safety Instructions
READ ALL INSTRUCTIONS BEFORE USE
!
Heat Pump Water Heater - 50 Hz (R134a)
!
!
!