Ecoer 2436 Installation Instructions Manual
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Ecoer 2436 Installation Instructions Manual

Inverter split heat pump, up to 20 seer, 2-3-4-5ton capacity, r410a
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ESI Outdoor Unit Installation Instruction
NOTE: Appearance of unit may vary.
The IoT gateway does not ship with outdoor unit.
Visit www.ecoer.com to get IoT installation guide.
Installation must be performed in accordance with
the requirements of NEC and CEC by authorized
personnel only.
All phases of this installation must comply with National, State and Local Codes.
IMPORTANT
This document is customer's property and is to remain with this unit. Please return it to customer
with service information upon completion of work.
These instructions do not cover all variations in systems or provide for every possible contingency
to be met in connection with the installation. Should further information be desired or should
particular problems arise which are not covered sufficiently for the purchaser's purposes, the
matter should be referred to your installing dealer or local distributor.
Manufacturer reserves the right to change specifications or designs without notice.
1/31
Installation Instructions
Inverter Split Heat Pump
Up to 20 SEER
2-3-4-5Ton Capacity
R410A
Contents
1. Safety--------------------------------------------------
3. Position the Unit--------------------------------------
5. Refrigerant Line Routing--------------------------
6. Refrigerant Line Brazing---------------------------
7. System Leak Check---------------------------------
8. Evacuation--------------------------------------------
9. Service Valves---------------------------------------
10. Electrical - Low Voltage----------------------------
11. Electrical - High Voltage---------------------------
12. Start-up------------------------------------------------
13. System Charge Adjustment----------------------
14. System Operation----------------------------------
15. Troubleshooting-----------------------------------------
16. Wiring Diagram----------------------------------------
www.ecoer.com
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08.2018

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Summary of Contents for Ecoer 2436

  • Page 1: Table Of Contents

    NOTE: Appearance of unit may vary. 7. System Leak Check--------------------------------- The IoT gateway does not ship with outdoor unit. 8. Evacuation-------------------------------------------- Visit www.ecoer.com to get IoT installation guide. 9. Service Valves--------------------------------------- 10. Electrical - Low Voltage---------------------------- Installation must be performed in accordance with the requirements of NEC and CEC by authorized 11.

  • Page 2: Safety

    ESI Outdoor Unit Installation Instruction www.ecoer.com 2/31 1. Safety Read the following safety instructions before installing the unit or doing servicing work. WARNING may cause personal death or serious injury. CAUTION may lead to injury or structural damage under some conditions.
  • Page 3 ESI Outdoor Unit Installation Instruction www.ecoer.com 3/31 CAUTION AUTHORIZED PERSONNEL ONLY This information is intended for use by individuals possessing adequate backgrounds of electrical and mechanical experience. Any attempt to repair central air conditioner or heat pump products may result in personal injury and/or property damage.

  • Page 4: Unit Location Considerations

    Table 2-1 Outdoor unit dimensions Unit Dimensions H x W x L(Inches) Model 24-15/16 x 29-1/8 x 29-1/8 2436 33-3/16 x 29-1/8 x 29-1/8 4860 Figure 2-2 External dimensions Manufacturer reserves the right to change specifications or designs without notice.
  • Page 5 ESI Outdoor Unit Installation Instruction www.ecoer.com 5/31 2.3 Location Restrictions Installation Clearance Requirement Avoid to install near bedrooms Ensure the top discharge area is unrestricted for at least 60 inches above the unit. Min. 60”unrestricted Do not locate outdoor unit near bedrooms since normal operational sounds may be annoying.

  • Page 6: Position The Unit

    ESI Outdoor Unit Installation Instruction www.ecoer.com 6/31 3. Position the Unit When mounting the unit on a roof, be sure the roof will support the unit’s weight obtained from nameplate. Properly selected isolation is recommended to prevent sound or vibration transmission to the building structure.

  • Page 7: Refrigerant Line Considerations

    Model Suction line Liquid line Suction line connection Liquid line connection 2436 4860 4.2 Refrigerant Line Limits Use only the line sizes indicated in Table 4-1 and determine required line length. • Maximum line length = 100 feet. • Maximum elevation difference = 50 feet.
  • Page 8 ESI Outdoor Unit Installation Instruction www.ecoer.com 8/31 4.3 Refrigerant Line Insulation The suction line must always be insulated. DO NOT allow the suction line and liquid line to suction line come in direct (metal to metal) contact. liquid line Insulation Figure 4-3 Line insulation 4.4 Reuse Existing Refrigerant Lines...

  • Page 9: Refrigerant Line Routing

    ESI Outdoor Unit Installation Instruction www.ecoer.com 9/31 5. Refrigerant Line Routing Comply with National, State, and Local Codes when isolating line sets from joists, rafters, walls, or other structural elements. Take precautions to prevent noise within the building structure due to vibration transmission from the refrigerant lines.

  • Page 10: Refrigerant Line Brazing

    ESI Outdoor Unit Installation Instruction www.ecoer.com 10/31 6. Refrigerant Line Brazing Refer to below figures marked with digital number for line brazing procedures. Every figure is corresponding to the following illustration. ① Remove caps or plugs . Use a tool to deburr the line ends. Clean both internal and external surfaces of the tubing using an emery cloth.

  • Page 11: System Leak Check

    ESI Outdoor Unit Installation Instruction www.ecoer.com 11/31 7. System Leak Check Leak check is required for the brazed line connections. 1. Pressurize the brazed refrigerant lines and indoor coil to at least 150 PSIG using dry nitrogen. 2. Check for leaks by using a soapy solution or bubbles at each brazed location.

  • Page 12: Service Valves

    ESI Outdoor Unit Installation Instruction www.ecoer.com 12/31 9. Service Valves Leak check and evacuation must be completed before opening the service valves. The Suction Service valve must be opened BEFORE opening the Liquid Service Valve! 1. Remove service valve cap.

  • Page 13: Electrical - Low Voltage

    Figure 10-1 Low voltage control wiring connection THERMOSTAT INDOOR UNIT OUTDOOR UNIT ONLY AVAILABLE TO ECOER THERMOSTAT WITH EAHATN SERIES INDOOR UNIT Notes: 1. Be sure power supply agrees with equipment nameplate. 2. Power wiring and grounding of equipment must comply with local codes.

  • Page 14: Electrical - High Voltage

    Follow instructions on unit wiring diagram located on the inside of the control box cover. Figure 11-1 Read the Warning Label Power Supply Model Voltage Switch Size 2436 208/230V-1Ph-60Hz 24.4A 4860 208/230V-1Ph-60Hz 32.5A 11.2 High voltage disconnect switch Install a separated disconnect switch at the outdoor unit.

  • Page 15: Start-Up

    ESI Outdoor Unit Installation Instruction www.ecoer.com 15/31 12. Start-up Refer to IoT Installation and Warranty Guide by ESS APP, connect the IoT gateway before start-up. At the same time, ensure chapters 5~11 have been completed. 1. Set the thermostat to OFF.

  • Page 16: System Charge Adjustment

    Charge multiplier for interconnecting Model Indoor Model charge indoor unit(oz) refrigerant tube length *2 2436 The data on 0.6 oz/ft nameplate 4860 1. Invalid for system with electric heaters or other third-party heaters whose capacity is 1.2 times of heat pump nominal heating capacity.
  • Page 17 ESI Outdoor Unit Installation Instruction www.ecoer.com 17/31 13.2 Auto charge mode Turn on the power supply for the system, select cooling mode from thermostat . Make sure the setting temperature is lower than room temperature for at least 5゜F to finish this charging mode.
  • Page 18 ESI Outdoor Unit Installation Instruction www.ecoer.com 18/31 Tips： How to adjust indoor TXV opening To keep the best Ecoer Smart Inverter(ESI) systems’ performance and reliability, be sure the compressor suction superheat(SH) meets our requirement. Target values 7~20゜F 6~18゜F in cooling mode •...
  • Page 19 Calculate sub-cooling value = ____________º F Add refrigerant if calculated sub-cooling value is lower than the designed one. Repeat the steps above. Table 13-4 Designed sub-cooling degree Model 2436 4860 Designed sub- 10º F(±2º F) 8º F(±2º F) cooling degree Figure 13-3 Measure the superheat or sub-cooling Manufacturer reserves the right to change specifications or designs without notice.
  • Page 20 ESI Outdoor Unit Installation Instruction www.ecoer.com 20/31 STEP3 Adjust refrigerant level to attain proper gage pressure. Add refrigerant if the sub-cooling is lower than the chart value. 1. Connect gages to refrigerant tank and unit as illustrated. 2. Purge all hoses.

  • Page 21: System Operation

    ESI Outdoor Unit Installation Instruction www.ecoer.com 21/31 14. System Operation 14.1 Default display LED on main control board can display the operating state of outdoor unit (ODU). SEG1 SEG2 SEG3 7 segment display instructions SEG1: Normally blank, but it displays codes “1~9” accordingly if there is damaged sensor and demand control requirement.
  • Page 22 ESI Outdoor Unit Installation Instruction www.ecoer.com 22/31 Mode list (SEG3 Display) SEG1 SEG2 SEG3 Stand by without running signal(Y=OFF) →State Code (SEG3): 0 SEG1 SEG2 SEG3 Wait to start after receiving running signal(Y=ON) (6 minutes for pressure equalization to restart) →State Code (SEG3): 1...
  • Page 23 ESI Outdoor Unit Installation Instruction www.ecoer.com 23/31 14.2 Field setting Outdoor condensing units’ functions can be applied by dipping switch and pressing buttons on the job site. 14.2.1 Setting by dip switches SW1 Dip switch Description Content NO ． Setting item...
  • Page 24 ESI Outdoor Unit Installation Instruction www.ecoer.com 24/31 Default mode (Spot check) System states can be showed on the 7 segments display of outdoor unit. Press BS3 button to get code number and corresponding detailed information with an interval of one second.
  • Page 25 ESI Outdoor Unit Installation Instruction www.ecoer.com 25/31 Setting mode Press and hold BS1 button for 5 seconds to enter the parameter setting interface. The latest setting will be taken as the final one. Symbol Function Item Description 0(factory) Normal mode...
  • Page 26 ESI Outdoor Unit Installation Instruction www.ecoer.com 26/31 14.3 Major components function Liquid Stop Valve Heat Exchanger Gas Stop Valve Gauge Port Figure 14-1 Refrigerant Circuit Name Symbol Function Adjusts refrigerant flow rate by changing the frequency(RPS) based on Inverter compressor objective pressure.
  • Page 27 ESI Outdoor Unit Installation Instruction www.ecoer.com 27/31 14.4 Control logic description 14.4.1 Operation Mode SW1_3=OFF(factory), ESI uses Y/O/C signal to operate heat pump function. SW1_3=ON has been set, ESI system uses Y/C signal to run cooling only. Normal Operation: ・Compressor PI control ・EEV PI control...

  • Page 28: Troubleshooting

    ESI Outdoor Unit Installation Instruction www.ecoer.com 28/31 15. Troubleshooting If the system does not properly operate besides the malfunctions. Check the system based on the following procedures. Symptoms Possible causes Solutions • No 24 VAC signal from thermostat. • Be sure Y/O/C wirings are connected correctly...
  • Page 29 ESI Outdoor Unit Installation Instruction www.ecoer.com 29/31 Error code List for Outdoor Unit Past error codes can be spot checked from default mode by BS3 button, and seen from Ecoer Smart Service App. Refer to ESI (Ultra) service manual for troubleshooting details. Error Description...

  • Page 30: Wiring Diagram

    ESI Outdoor Unit Installation Instruction www.ecoer.com 30/31 16. Wiring Diagram Manufacturer reserves the right to change specifications or designs without notice. 08.2018...
  • Page 31 ESI Outdoor Unit Installation Instruction www.ecoer.com 31/31 Manufacturer reserves the right to change specifications or designs without notice. 08.2018...
  • Page 32 ESI Outdoor Unit Installation Instruction www.ecoer.com 32/31 © 2018 ECOER INC. 3900 Jermantown Rd., Suite 150, Fairfax, VA 22030 Tel: 703-348-2538 www.ecoer.com Manufacturer reserves the right to change specifications or designs without notice. 08.2018...

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