EcoSpring RSJ-35/300RDN Technical Manual
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EcoSpring RSJ-35/300RDN Technical Manual

Combo type heat pump water heater
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EcoSpring
Combo Type RSJ-35/300RDN3 Technical Manual
Applicable Model:
RSJ-35/300RDN3
EcoSpring reserves the right to discontinue, or change
specification or designs at any time without notice and without incurring obligations.
1
EcoSpring
Heat Pump Water Heater
Technical Manual
Combo Type
ES300+
MCAC-RTSM-2013-05

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Summary of Contents for EcoSpring RSJ-35/300RDN

  • Page 1 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual MCAC-RTSM-2013-05 EcoSpring Combo Type Heat Pump Water Heater Technical Manual ES300+ Applicable Model: RSJ-35/300RDN3 EcoSpring reserves the right to discontinue, or change specification or designs at any time without notice and without incurring obligations.

  • Page 2: Table Of Contents

    MCAC-RTSM-2013-05 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual Content 1. GENERAL INFORMATION ....................3 1.1 Measurements........................3 1.2 External appearance ......................3 1.3 Nomenclature .........................3 2. COMBO TYPE HEAT PUMP WATER HEATER ..............4 2.1 Features ..........................4 2.2 Refrigerant circuit ......................5 2.3 Unit structure .........................6 2.4 Specifications ........................7...

  • Page 3: General Information

    MCAC-RTSM-2013-05 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual 1. General Information 1.1 Measurements Model Net/Gross weight (kg) Dimension (mm, D×H) Power Supply RSJ-35/300RDN3 144.5/173.5 220-240V~, 50Hz, 1Ph Ф650×1920 1.2 External appearance 1.3 Nomenclature Refrigerant Type N3: R134a Function D: E-Heater Refrigerant Cycle-heating Type Water Storage (Unit: L) Heating Capacity (Unit: ×100W)

  • Page 4: Combo Type Heat Pump Water Heater

    MCAC-RTSM-2013-05 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual 2. Combo Type Heat Pump Water Heater 2.1 Features Safety 1. Complete isolation between water and electric circuits. 2. No fuel tubes and storage, no potential danger from oil leakage, fire, explosion, and so on.

  • Page 5: Refrigerant Circuit

    EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual MCAC-RTSM-2013-05 High efficiency According to the heat pump principle, the unit absorbs heat from outdoor air to produce hot water. Coefficient of performance (COP) is up to 3.76 (Under the condition A15/12 W15/45 °C °C...

  • Page 6: Unit Structure

    MCAC-RTSM-2013-05 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual 2.3 Unit structure Notes: 1. All the pictures in this manual are for explanation purpose only. They may be slightly different from the heat pump water heater you purchased (depending on model). 2. Raincover should be purchased by the client for outdoor installation.

  • Page 7: Specifications

    EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual MCAC-RTSM-2013-05 2.4 Specifications Model RSJ-35/300RDN3 Heat source Heat pump E-heater Running ambient temperature °C -7∼43 -20∼43 Output water temperature °C Default 60°C, 38°C∼60°C Power supply Ph, V, Hz 1, 220-240~, 50 Storage size Capacity 3.00...

  • Page 8: Dimension

    MCAC-RTSM-2013-05 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual Locked rotor Amp(LRA) 0.35 Capacitor 2.5μF/450V Water inlet pipe DN20 Water outlet pipe DN20 Water pipeline Drainage pipe DN20 PTR valve joint DN20 Max. operating pressure Water side heat exchanger Dividing wall type heat exchanger E-heater 3.00×1...

  • Page 9: Performance Data

    EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual MCAC-RTSM-2013-05 2.6 Performance data Running mode will be automatically selected by unit. It cannot be selected by manual operation. Running Temperature Range: Setting water temperature target range: 38~60 °C E-heater running ambient temperature range: -20~43 °C...
  • Page 10 MCAC-RTSM-2013-05 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual The data between capacity and ambient temperature Capacity (W) Water outlet temperature ( ) °C Ambient Temp. ( ) °C 3100 3100 3100 3100 3100 3100 3100 3100 1455 1519 1596 1675 1709...

  • Page 11: Wiring Diagram

    MCAC-RTSM-2013-05 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual 2.7 Wiring diagram...

  • Page 12: Installation

    MCAC-RTSM-2013-05 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual 2.8 Installation 2.8.1 Transport In order to avoid scratch or damage of the unit surface, apply guard boards to the contacting surface. Don’t incline the unit more than 75° whilst moving, and keep it vertical when installing.
  • Page 13 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual MCAC-RTSM-2013-05 The ambient air temperature must also be considered when installing this unit, in heat pump mode the ambient air temperature must be above -7 and below 43 .If the °C °C ambient air temperature falls outside the limits, the electrical elements will activate to meet the hot water demand and the heat pump will not operate.
  • Page 14 MCAC-RTSM-2013-05 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual 2.8.3 Water system piping In case of installing the unit at a place where outside temperature is below freezing point, insulation must be provided for all hydraulic components. Water inlet or outlet pipes: The speci cation of the water inlet or outlet thread is RC3/4”, which is external thread.
  • Page 15 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual MCAC-RTSM-2013-05 weather. After water system piping connection, turn on the inlet and outlet valve to effuse the tank. When water flow is coming out from outlet pipe, the tank is full, turn off all valves to check the pipeline leakage.
  • Page 16 MCAC-RTSM-2013-05 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual 2.8.4 Installation Outdoors Raincover must be installed. Filter needs to be installed at the air inlet position. Notes: When the rain cover is installed condensate will be generated around the outside of the rain cover.
  • Page 17 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual MCAC-RTSM-2013-05 2.8.5 Electric connection The power supply should be hard wired. Power supply circuit should be earthed effectively. The wiring must be performed by professional technicians in accordance with national wiring regulations and the circuit diagram.
  • Page 18 MCAC-RTSM-2013-05 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual Switch setting PCB has 2 bits of switches, do not change factory settings. Model selection (Never allow user to alter the factory settings) SW1-1 Without Electric Heater With Electric Heater SW1-2 Without Disinfect...
  • Page 19 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual MCAC-RTSM-2013-05 PCB I/O Ports description...

  • Page 20: Water Affusion And Effusion

    MCAC-RTSM-2013-05 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual 2.9 Water affusion and effusion Water affusion: If the unit is used for the first time or used again after emptying the tank, please make sure that the tank is full of water before turning on the power.

  • Page 21: Trial Run

    EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual MCAC-RTSM-2013-05 Water effusion: If the unit needs cleaning, moving etc., the tank should be emptied. Close the cool water inlet, open the hot After emptying, please close the nut water outlet and open the nut of of drainpipe drainpipe.

  • Page 22: Maintenance

    MCAC-RTSM-2013-05 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual It is normal that the display temperature has reached target temperature but compressor is still running, this is because the lower water temperature has not reached target temperature. When the system stops, a decrease of the temperature is normal as heat is released. When it decreases to some point, the system will restart automatically.
  • Page 23 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual MCAC-RTSM-2013-05 performance. Check the sacrificial anode every half year and change as needed. For more details, please contact the supplier or the after-sale service. It is recommended to set a lower temperature to decrease the heat release, prevent scale and save energy if the outlet water is sufficient.

  • Page 24: Trouble Shooting

    MCAC-RTSM-2013-05 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual 2.12 Trouble shooting Error shooting Error Cause Resolutions Bad connection of power supply plug and Cold water only socket; Plug in; and display Setting outlet water temperature too low; Setting water temperature higher;...
  • Page 25 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual MCAC-RTSM-2013-05 E0, E1 Notes: T5U is the upper water temperature sensor. T5L is the lower water temperature sensor. E4, E5, E6, E9 Notes: T3 is the evaporator temperature sensor; T4 is the ambient temperature sensor.
  • Page 26 MCAC-RTSM-2013-05 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual Notes: If the PCB current-induction-circuit check the current difference between L, N >14mA, system considers it as ‘electric leakage error’. Notes: E-heater open-circuit error means that IEH (Current difference E-heater on and off) <1A.

  • Page 27: Function

    EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual MCAC-RTSM-2013-05 2.13 Function Week disinfect Under disinfection mode, the unit will immediately start to heat water up to 65 to kill the Legionella °C bacteria inside water tank. ‘ ’ icon will light on the display screen during disinfection. Unit will quit disinfection mode if water temperature is higher than 65 °C and extinguish ‘...
  • Page 28 MCAC-RTSM-2013-05 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual TCO and ATCO The power to compressor and E-heater will be automatically switched on or switched off by ATCO and TCO. If the water temperature is higher than 78°C, the ATCO will automatically shut off the power to the compressor and E-heater, and turn it on if the temperature falls below 68°C.

  • Page 29: Operation

    EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual MCAC-RTSM-2013-05 the Warning indicator illuminates and the display indicate the error code and water temperature alternatively. Press CANCEL button for 3 seconds to stop the alarm. This will stop when the protection is resolved and error code disappears on the display.
  • Page 30 MCAC-RTSM-2013-05 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual Display explanation Wire controller If connected to a wire controller, the icon will illuminate, otherwise, the icon be extinguished. Outdoor solar heat source If an outside solar heat source has been connected to the unit, this icon will flash with 0.5Hz frequency, otherwise it will be extinguished.
  • Page 31 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual MCAC-RTSM-2013-05 High temperature Alarm If setting water temperature higher than 50°C, the icon will illuminate, otherwise it will be extinguished. Alarm When unit is under protection /error, the icon will flash with 5Hz frequency as well as buzzer will CANCEL’...
  • Page 32 MCAC-RTSM-2013-05 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual illuminate the timer which has been set. Clock and clock setting ’ will illuminate. The icon shows the clock. Whenever there is any setting for clock, ‘ Operation panel explanation Notes: Button selection is availble only in unlocked state.
  • Page 33 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual MCAC-RTSM-2013-05 value will be increased continuously. Under query mode, check items will page up by pressing ‘ INCREASE’ or page down by pressing ‘DECREASE’. CANCEL To cancel setting, quit setting, clear alarm, etc. And to clear alarm buzzer, need to press for 1 second.
  • Page 34 MCAC-RTSM-2013-05 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual slowly. By pressing ‘ UP’ or ‘ DOWN’, set the minute value of clock. Press ‘ ENTER’ to con rm the disinfect clock setting and quit out. Notes: Unit will automatically start disinfect function at the above-set clock every 7 days.
  • Page 35 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual MCAC-RTSM-2013-05 Setting timer Press ‘ CLOCK’ to enter timer setting. Push ‘ UP’ or ‘ DOWN’, select timer ( 6) which needs to be set. The timer icon will flash slowly if it is selected.

  • Page 36: Accessories

    MCAC-RTSM-2013-05 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual icon will flash slowly if it is selected, and the timer action (on or off) and set clock will be shown. If the action is on, target temperature will be shown. And if the action is o , icon ‘...

  • Page 37: Resistance Characteristic Of Temperature Sensor

    EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual MCAC-RTSM-2013-05 2.16 Resistance characteristic of temperature sensor Resistance characteristic of ambient Temp., pipe Temp. and suction Temp. sensor. Temp. Resistance Temp. Resistance Temp. Resistance Temp. Resistance (°C) value (kΩ) (°C) value (kΩ) (°C) value (kΩ) (°C)
  • Page 38 MCAC-RTSM-2013-05 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual Resistance characteristic of discharge temperature sensor Temp. Resistance Temp. Resistance Temp. Resistance Temp. Resistance (°C) value (kΩ) (°C) value (kΩ) (°C) value (kΩ) (°C) value (kΩ) 542.7 68.66 13.59 3.702 511.9 65.62 13.11 3.595...
  • Page 39 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual MCAC-RTSM-2013-05 Resistance characteristic of water tank temperature sensor Temp. Max. Resistance Normal Resistance value Min. Resistance value Temp. Tol. (°C) value (kΩ) (kΩ) (kΩ) (°C) 965.72 867.29 778.18 -1.78 1.73 907.28 815.80 732.88 -1.78 1.72...
  • Page 40 MCAC-RTSM-2013-05 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual Temp. Max. Resistance Normal Resistance value Min. Resistance value Temp. Tol. (°C) value (kΩ) (kΩ) (kΩ) (°C) 104.71 98.227 92.060 -1.34 1.34 99.722 93.634 87.839 -1.33 1.33 94.992 89.278 83.832 -1.31 1.32 90.510 85.146...
  • Page 41 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual MCAC-RTSM-2013-05 Temp. Max. Resistance Normal Resistance value Min. Resistance value Temp. Tol. (°C) value (kΩ) (kΩ) (kΩ) (°C) 18.128 17.600 17.072 -0.77 0.80 17.465 16.943 16.423 -0.79 0.83 16.830 16.315 15.801 -0.82 0.85 16.221 15.713...
  • Page 42 MCAC-RTSM-2013-05 EcoSpring Combo Type RSJ-35/300RDN3 Technical Manual Temp. Max. Resistance Normal Resistance value Min. Resistance value Temp. Tol. (°C) value (kΩ) (kΩ) (kΩ) (°C) 4.6990 4.4381 4.1880 -1.85 1.84 4.5579 4.3022 4.0572 -1.88 1.87 4.4218 4.1711 3.9312 -1.91 1.90 4.2903 4.0446...

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