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Ecoer TDi Pro 2 EAHDEN-24ABA Service Manual

R-454b unitary
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Ecoer TDi Pro2 Service Manual
Ecoer TDi Pro 2 Series R-454B Unitary
Service Manual
All phases of this installation must comply with National, State and Local Codes.
IMPORTANT
These instructions do not cover all variations in systems or provide for every possible contingency to be met
in connection with installing and servicing. 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 local distributor.
Manufacturer reserves the right to change specifications or designs without notice.
1/67
www.ecoer.com
Feb 2025

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  • Page 1 Ecoer TDi Pro2 Service Manual www.ecoer.com 1/67 Ecoer TDi Pro 2 Series R-454B Unitary Service Manual All phases of this installation must comply with National, State and Local Codes. IMPORTANT These instructions do not cover all variations in systems or provide for every possible contingency to be met in connection with installing and servicing.

  • Page 2: Table Of Contents

    Ecoer TDi Pro2 Service Manual www.ecoer.com 2/67 Contents 1. Safety Precautions-------------------------------------------------------------------------------------------------------- 2. Model Reference & External Appearance--------------------------------------------------------------------------- 3. Indoor Unit 3.1 Dimensional Drawings -------------------------------------------------------------------------------------------- 3.2 Part list --------------------------------------------------------------------------------------------------------------- 3.3 Fan Performance --------------------------------------------------------------------------------------------------- 3.4 Electrical Characteristics ------------------------------------------------------------------------------------------ 3.5 Electric Heat Data -------------------------------------------------------------------------------------------------- 3.6 Electrical Wiring Diagrams...
  • Page 3 Ecoer TDi Pro2 Service Manual www.ecoer.com 3/67 Contents 7. Product Features 7.1 Default display------------------------------------------------------------------------------------------------------- 7.2 Protection controls-------------------------------------------- ------------------------------------------------------ 7.3 Control logic description------------------------------------------------------------------------------------------- 7.4 Setting by dip switches--------------------------------------------------------------------------------------------- 7.5 Setting by pressing buttons---------------------------------------------------------------------------------------- 7.6 Setting mode--------------------------------------------------------------------------------------------------------- 8. Troubleshooting 8.1 Problems without Codes ------------------------------------------------------------------------------------------ 8.2 Error Codes List...

  • Page 4: Safety Precautions

    Ecoer TDi Pro2 Service Manual www.ecoer.com 4/67 1. Safety Precautions Read the following safety instructions before installing the unit or doing servicingwork. NOTE: R454B refrigerant is a blend and should only be added to the system in liquid state. WARNING ： MAY CAUSE PERSONAL DEATH OR SERIOUS INJURY.

  • Page 5: Installation

    Ecoer TDi Pro2 Service Manual www.ecoer.com 5/67 WARNING INSTALLATION Any person who is involved with working on or breaking into a refrigerant circuit should hold a current valid certificate from an industry-accredited assessment authority, which authorises their competence to handle refrigerants safely in accordance with an industry recognised assessment specification.
  • Page 6 Ecoer TDi Pro2 Service Manual www.ecoer.com 6/67 WARNING QUALIFICATION OF WORKERS Any maintenance, service and repair operations must be required qualification of the working personnel. Every working procedure that affects safety means shall only be carried out by competent persons that joined the training and achieved competence should be documented by a certificate.
  • Page 7 Ecoer TDi Pro2 Service Manual www.ecoer.com 7/67 WARNING CHECKS TO ELECTRICAL DEVICES For systems containing refrigerant, all repair and maintenance to electrical components shall include initial safety checks and component inspection procedures such as that capacitors are discharged in a safe manner to avoid possibility of sparking, that no live electrical components and wiring are exposed while charging, recovering, or purging the system, and that there is continuity of earth bonding.

  • Page 8: Charging Procedures

    Ecoer TDi Pro2 Service Manual www.ecoer.com 8/67 WARNING CABLING Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any other adverse environmental effects. The check shall also take into account the effects of aging or continual vibration from sources such as compressors or fans.
  • Page 9 Ecoer TDi Pro2 Service Manual www.ecoer.com 9/67 WARNING RECOVERY When removing refrigerant from a system, either for servicing or decommissioning, it is recommended good practice that all refrigerants are removed safely. When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are employed.
  • Page 10 Ecoer TDi Pro2 Service Manual www.ecoer.com 10/67 WARNING 4.A warning that if appliances connected via an air duct system to one or more rooms with A2L REFRIGERANTS are installed in a room with an area less than 4 minutes as determined in Clause GG.2. or installed in a room with an EFFECTIVE DISPERSAL VOLUME VED less than the minimum as determined by Clause 101.DVN.8, that room shall be without continuously operating open flames...
  • Page 11 Ecoer TDi Pro2 Service Manual www.ecoer.com 11/67 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 12 Ecoer TDi Pro2 Service Manual www.ecoer.com 12/67 WARNING Disconnect all power to unit before installing or servicing. More than one disconnecting switch may be required to de-energize the equipment. Hazardous voltage can cause servere personal injury or death. Installation and maintenance must be performed by authorized personnel only.
  • Page 13 Ecoer TDi Pro2 Service Manual www.ecoer.com 13/67 WARNING If removal of the blower assembly is required, all switches supplying power to the equipment must be disconnected and locked so the field power wires can be safely removed from the blower assembly. Failure to do so can cause electrical shock resulting in personal injuring or death.
  • Page 14 Ecoer TDi Pro2 Service Manual www.ecoer.com 14/67 WARNING FLAMMABLE REFRIGERANT! Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer. The appliance shall be stored in a room that does not have continuously operating ignition sources (for example: open flames, an operating gas appliance or an operating electric heater).
  • Page 15 Ecoer TDi Pro2 Service Manual www.ecoer.com 15/67 WARNING FLAMMABLE REFRIGERANT! When repairing the refrigerating system, comply with the following precautions prior to conducting work on the system: • Work shall be undertaken according to controlled procedures to minimize the risk of the presence of flammable gases or vapors while the work is being performed.
  • Page 16 Ecoer TDi Pro2 Service Manual www.ecoer.com 16/67 WARNING PERSONAL INJURY, FLAMMABLE REFRIGERANT! Ensure that the area is in the open or that it is adequately ventilated before opening the system or conducting any hot work. A degree of ventilation shall continue during the period that the work is carried out. The ventilation should safely disperse any released refrigerant and preferably expel it externally into the surroundings.
  • Page 17 Ecoer TDi Pro2 Service Manual www.ecoer.com 17/67 WARNING FLAMMABLE REFRIGERANT! When breaking into the refrigerant circuit to make repairs or for any other purpose conventional procedures shall be used. However, for flammable refrigerants it is important that best practice be followed, since flammability is a consideration.
  • Page 18 Ecoer TDi Pro2 Service Manual www.ecoer.com 18/67 WARNING FLAMMABLE REFRIGERANT! Prior to recharging the system, it shall be pressure-tested with the appropriate purging gas. The system shall be leak-tested on completion of charging but prior to commissioning. A follow up leak test shall be carried out prior to leaving the site.
  • Page 19 Ecoer TDi Pro2 Service Manual www.ecoer.com 19/67 WARNING FLAMMABLE REFRIGERANT! The recovery equipment shall be in good working order with a set of instructions concerning the equipment that is at hand and shall be suitable for the recovery of the flammable refrigerant. If in doubt, the manufacturer should be consulted.
  • Page 20 Ecoer TDi Pro2 Service Manual www.ecoer.com 20/67 WARNING ROOM SIZE RESTRICTION The appliances are connected via an air duct system to one or more rooms, the bottom of the air outlet of the air duct in the room should be at a height ≥7.3ft/2.2m from the floor. In UL/CSA 60335- 2-40, the R454B refrigerant belongs to mildly flammable refrigerants, which will limit the room area of the system service.

  • Page 21: Model Reference & External Appearance

    Ecoer TDi Pro2 Service Manual www.ecoer.com 21/67 2. Model Reference & External Appearance 2.1 Model Reference Refer to the following table to determine the specific indoor and outdoor unit model number of your purchased equipment. Capacity (Btu/h) Indoor Unit Model...

  • Page 22: Dimensional Drawings

    Ecoer TDi Pro2 Service Manual www.ecoer.com 22/67 3. Indoor Unit-Air Handler 3.1 Dimensional Drawings Manufacturer reserves the right to change specifications or designs without notice. Feb 2025...

  • Page 23: Part List

    Ecoer TDi Pro2 Service Manual www.ecoer.com 23/67 3.2 Part list Parts number Part Name Quantity 24/36K 48/60K EAC2308200064 EAC2308200025 Electronic control cover plate Chassis ass'y EAC2308200001 EAC2308200026 Rear side panel ass'y EAC2308200021 EAC2308200059 EAC2308200083 EAC2308200075 Rear side panel cover 1...
  • Page 24 Ecoer TDi Pro2 Service Manual www.ecoer.com 24/67 Parts number Part Name Quantity 24/36K 48/60K Drainage pan supporter ass'y III EAC2308200047 Drainage pan II EAC2308200018 EAC2316100115 Drainage pan fixing plate EAC2308200066 Drainage pan connecting plate 1 EAC2308200095 EAC2308200053 Drainage pan connecting plate 2...
  • Page 25 Ecoer TDi Pro2 Service Manual www.ecoer.com 25/67 Parts number Part Name Quantity 24/36K 48/60K Blower side baffle 1 EAC2308200008 EAC2308200041 Blower fixing plate EAC2400300100 EAC2400300058 Centrifugal fan EAC2308200074 EAC2308200069 IoT device EAC230903107 Terminal block ECON060506 Terminal fixing plate EAC2308200030 Electrical Parts support board...

  • Page 26: Fan Performance

    Ecoer TDi Pro2 Service Manual www.ecoer.com 26/67 3.3 Fan Performance Airflow performance data is based on cooling performance with a coil and no filter in place. Check the Performance table for appropriate unit size selection. External static pressure should stay within the minimum and maximum limits shown in the table below in order to ensure proper airflow.

  • Page 27: Electrical Characteristics

    Ecoer TDi Pro2 Service Manual www.ecoer.com 27/67 3.4 Electrical Characteristics Power Supply Minimum Circuit Model Number Voltage-Phase-Hz Motor HP Fuse (A) Wiring Gauge AMPS 208/230V~1Ph~60Hz 24/36K 115V~1Ph~60Hz 208/230V~1Ph~60Hz 48/60K 115V~1Ph~60Hz 14.4 3.5 Electric Heat Data Nominal MAX. FUSE OR Power HEATER AMPS MIN.CICUIT AMPS...

  • Page 28: Electrical Wiring Diagrams

    Ecoer TDi Pro2 Service Manual www.ecoer.com 28/67 3.6 Electrical Wiring Diagrams Indoor unit Wiring Diagram Manufacturer reserves the right to change specifications or designs without notice. Feb 2025...

  • Page 29: Indoor Blower Control Function

    The unit supports the 2-stage fan control which requires a two-stage thermostat (Y1/Y2) and the variable speed control by Y1. Variable airflow mode is only compatible with ECOER inverter outdoor units. The two-stage mode is compatible with both ECOER outdoor units and other outdoor units.
  • Page 30 Ecoer TDi Pro2 Service Manual www.ecoer.com 30/67 3.7.5 Alarm input Supports alarm input to shut down the HVAC system. When the Alarm input CN3 receives a 24v alarm input signal, the indoor unit shuts down all control components. 3.7.6 Lackage Alarm output An alarm output(CN1) can be utilized if actions are required when a fault is present.

  • Page 31: Outdoor Unit

    Ecoer TDi Pro2 Service Manual www.ecoer.com 31/67 4. Outdoor Unit 4.1 Dimensional Drawings Please check the corresponding dimensional drawing according to the panel plate. AIR DISCHARGE: ALLOW 60’’ MINIMUM CLEARANCE 2436A Allow a minimum of 12 in. clearance on one side of access panel to a wall and 24 in.

  • Page 32: Part List

    Ecoer TDi Pro2 Service Manual www.ecoer.com 32/67 4.2 Part List Parts number Part Name Quantity 2436A 4860A Condenser ass'y EAC2312100038 EAC2312100045 EAC2400000143 EAC2400000145 Condenser connection pipe ass'y Condenser EAC2400000144 EAC2400000146 Condenser outlet pipe ass'y EAC2400000091 EAC2400000056 EAC2400000115 EAC2400000043 Condenser inlet pipe ass'y...
  • Page 33 Ecoer TDi Pro2 Service Manual www.ecoer.com 33/67 Parts number Part Name Quantity 2436A 4860A EAC2319100013 Motor mounting bolts EAC2308100037 Fan grille EAC2308100032 EAC2308100039 Supporting board EAC2308100033 EAC2308100040 Side board ass'y I Side board ass'y Ⅱ EAC2308100034 EAC2308100041 EAC2312100040 EAC2312100047 Discharge pipe ass'y...
  • Page 34 Ecoer TDi Pro2 Service Manual www.ecoer.com 34/67 Parts number Part Name Quantity 2436A 4860A Upper cover ass'y EAC2308100038 EAC2308100044 EAC2400000124 EAC2308100042 Electronic control components Noise filter assy （ EMI ） EAC230904101 EAC230904102 EIND080012 EIND080011 PFC inductor EAC230904173 EAC230904171 Motherboard component...

  • Page 35: Capacity Correction Factor For Height Difference

    Ecoer TDi Pro2 Service Manual www.ecoer.com 35/67 4.3 Capacity Correction Factor for Height Difference The system can extend the line sets flexibly within its limitation to fit the actual situation. However, it will cause cooling/heating capacity decrease because of the pressure loss by longer line length. Using the following correction factor to calculate the approximate capacity accordingly.

  • Page 36: Refrigerant Circuit

    Ecoer TDi Pro2 Service Manual www.ecoer.com 36/67 4.4 Refrigerant Circuit 4.4.1 Functional Parts Layout of Condensing Units EODA19H-2436ABA Low Pressure DC Motor (FAN) Sensor (LP) Fan Blades Inductance Accumulator (ACC) Filter Board Inverter Compressor (INV) Heat Exchanger High Pressure Switch (HPS)
  • Page 37 Ecoer TDi Pro2 Service Manual www.ecoer.com 37/67 EODA19H-4860ABA Low Pressure Sensor (LP) DC Motor (FAN) Accumulator (ACC) Fan Blades Heat Inductance Exchanger Filter Board Fusible Plug Inverter Compressor (INV) High Pressure Switch (HPS) separator Main Control Board (PCB) High Pressure...

  • Page 38: Symbol Function

    Ecoer TDi Pro2 Service Manual www.ecoer.com 38/67 4.4.2 Major Components Functions Liquid Service Valve T T A A Heat Exchanger Gas Service Valve (ST1) Gauge Port Fusible Relief Valve ------------------------------- OilS Name Symbol Function Adjusts refrigerant flow rate by changing the speed (RPS) based on Inverter compressor objective pressure.
  • Page 39 Ecoer TDi Pro2 Service Manual www.ecoer.com 39/67 4.4.3 Refrigerant Flow of Each Operation Mode Cooling Operation (including defrost operation and cooling oil return) Liquid Service Valve Indoor Coil Heat Exchanger ST1(RV) Gas Service Valve Gauge Port Strainer Fusible Relief Valve...

  • Page 40: Electrical Wiring Diagrams

    Ecoer TDi Pro2 Service Manual www.ecoer.com 40/67 4.5 Electrical Wiring Diagrams CN27 2436Model Manufacturer reserves the right to change specifications or designs without notice. Feb 2025...
  • Page 41 Ecoer TDi Pro2 Service Manual www.ecoer.com 41/67 CN23 4860Model Manufacturer reserves the right to change specifications or designs without notice. Feb 2025...

  • Page 42: Installation

    Ecoer TDi Pro2 Service Manual www.ecoer.com 42/67 5. Installation 5.1 Outdoor unit installation 5.1.1 Installation Clearance Requirement Avoid Installs Ensure the top discharge area is unrestricted for at NearBedrooms least 60 inches above the unit. Do not locate condensing unit near bedrooms because normal operational sounds may be annoying.
  • Page 43 Ecoer TDi Pro2 Service Manual www.ecoer.com 43/67 Cold Climate Considerations Precautions must be taken for units being installed in areas where snow accumulation and prolonged below- freezing temperatures occur. Min. 12" Elevate unit local climate code requirements. Snow barrier • Where snowfall is anticipated, raise the unit above...

  • Page 44: Important Note

    Ecoer TDi Pro2 Service Manual www.ecoer.com 44/67 5.1.2 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 45 Ecoer TDi Pro2 Service Manual www.ecoer.com 45/67 5.1.3 Opening conditions for connected rooms The appliances are connected via an air duct system to one or more rooms, the bottom of the air outlet of the air duct in the room should be at a height ≥7.3ft/2.2m from the floor. In UL/CSA 60335-2-40, the R454B refrigerant belongs to mildly flammable refrigerants, which will limit the room area of the system service.
  • Page 46 Ecoer TDi Pro2 Service Manual www.ecoer.com 46/67 5.1.4 R454B refrigerant charge amount and minimum room area TAmin TAmin TAmin TAmin [oz/kg] [ft²/m²] [oz/kg] [ft²/m²] [oz/kg] [ft²/m²] [oz/kg] [ft²/m²] 56.5/1.6 51/4.74 134/3.8 126/11.67 211.6/6.0 198/18.43 289.2/8.2 271/25.18 63.5/1.8 60/5.53 141.1/4 132/12.29 218.7/6.2...

  • Page 47: Indoor Unit Installation(Ahu)

    Ecoer TDi Pro2 Service Manual www.ecoer.com 47/67 5.2 Indoor Unit Installation(AHU) 5.2.1 Installation place a) Horizontal Position b) Vertical Position 5.2.2 Install the main body The unit may be installed in one of the upflow, downflow, horizontal left or horizontal right orientations.
  • Page 48 Ecoer TDi Pro2 Service Manual www.ecoer.com 48/67 5.2.3 Vertical up-flow and Horizontal right-flow Vertical up-flow and horizontal right-flow configurations are the factory settings on all models. If return air is to be ducted, install duct flush with floor. Use fireproof resilient gasket 1/8 to 1/4 in. thick between the ducts, unit and floor.
  • Page 49 Ecoer TDi Pro2 Service Manual www.ecoer.com 49/67 5.2.2 Down flow and Horizontal left instructions STEP 2 STEP 1 Remove the screws from the filter cover, Remove the screws from the upper and support strip 1 and support strip 2 as shown lower panels as shown in Figure 3-3.
  • Page 50 Ecoer TDi Pro2 Service Manual www.ecoer.com 50/67 STEP 4 STEP 5 Rotate the outlet of cabinet to the air outlet Secure the screws on support strips 1 and 2 and direction. After mounting the evaporator assembly the piping cover panel separately. Shown in Figure onto the middle rail.
  • Page 51 Ecoer TDi Pro2 Service Manual www.ecoer.com 51/67 STEP 7 As shown in Figure3- 10, route the wiring harness along the external path and secure it with cable ties. Figure 3-10 STEP 8 Secure the screws on upper and lower panels, and install the filter,filter cover plate. Shown in Figure3- 11.
  • Page 52 Ecoer TDi Pro2 Service Manual www.ecoer.com 52/67 Make sure unit is leveled or pitched slightly toward primary drain connection so that water will drain completely from the pan. Up to an additional 1/4" rise over the width or depth of the unit is allowed to create additional sloping towards the drain. Unit must be positioned between level and 1/4"...

  • Page 53: Electric Heat Installation

    Ecoer TDi Pro2 Service Manual www.ecoer.com 53/67 5.3 Electric Heat Installation STEP 3. Slide the kit into the duct and fasten STEP 1. Unfasten 4 screws to take away the the element (e.g. attachment and wires). blower access panel of the air handler.
  • Page 54 Ecoer TDi Pro2 Service Manual www.ecoer.com 54/67 WARNING Disconnect all power to unit before installing or servicing. More than one disconnect switch may be required to de-energize the equipment. Hazardous voltage can cause severe personal injury or death. 7.5kW/10kW HEAT KIT...

  • Page 55: Condensate Drain Connection

    Ecoer TDi Pro2 Service Manual www.ecoer.com 55/67 5.4 Condensate Drain Connection 1. Use a thin layer of Teflon paste, silicone or Teflon tape when making drain fitting connections. 2. Do not over tighten fittings resulting in splitting pipe connections on the drain pan.

  • Page 56: Refrigerant Line Considerations

    Ecoer TDi Pro2 Service Manual www.ecoer.com 56/67 5.5 Refrigerant Line Considerations 5.5.1 Refrigerant Line Limits Use only the line sizes indicated in table below and determine required line length. If the suction line sets are greater than 50 feet, do not use a larger suction line than recommended.
  • Page 57 Ecoer TDi Pro2 Service Manual www.ecoer.com 57/67 5.5.2 Refrigerant Line Insulation Liquid line Suction line The suction line must always be insulated. Insulation DO NOT allow the suction line and liquid line to come in direct (metal to metal) contact.

  • Page 58: Refrigerant Line Connection

    Ecoer TDi Pro2 Service Manual www.ecoer.com 58/67 5.6 Refrigerant Line Connection 5.6.1 Refrigerant Line Brazing Connection Refer to below figures marked with digital number for line brazing procedures. Every figure is corresponding to the following illustrations. 1. Find the plastic bag taped to the outdoor unit that contains the copper adapter tube and brass nut.
  • Page 59 Ecoer TDi Pro2 Service Manual www.ecoer.com 59/67 ⑦ ⑥ A thimble is required Fig -1 Refrigerant Line Brazing Connection 5.6.2 Refrigerant Line Press Fitting Connection This Press Fitting connection operation is for reference only. Please follow the official instructions provided by Press Fitting Tools for operation.

  • Page 60: System Leak Check

    Ecoer TDi Pro2 Service Manual www.ecoer.com 60/67 ⑤ ⑥ Press fittings Press fittings Field install Fig 6-2 Refrigerant Line Press Fitting Connection 5.6.3 Refrigerant Line Connection All joints made in the installation between parts of the REFRIGERATING SYSTEM, with at least one part charged, shall be made in accordance with the following: •A brazed, welded, or mechanical connection shall be made before opening the valves to permit refrigerant to flow between...

  • Page 61: Evacuation And Servicing

    Ecoer TDi Pro2 Service Manual www.ecoer.com 61/67 After completion of field piping for split systems, the field pipework shall be pressure tested with nitrogen and then vacuum tested prior to refrigerant charging, according to the following requirements: The minimum leak test pressure of the lineset and indoor coil shall be the high side design pressure, unless the high side of the system, cannot be isolated from the low side of the system in which case the entire system shall be pressure tested to the low side design pressure.

  • Page 62: Service Valves

    Ecoer TDi Pro2 Service Manual www.ecoer.com 62/67 5.9 Service Valves Leak check and evacuation must be completed before opening the service valves. The gas service valve must be opened BEFORE opening the Liquid Service Valve! 1. Remove service valvecap. 2. Fully insert hex wrench into the stem and counterclockwise until valve stem just touches the rolled edge (approximately five turns.)
  • Page 63 Ecoer TDi Pro2 Service Manual www.ecoer.com 63/67 5.10.2 Low voltage hook-up diagrams With ECOER AHU: E-heater or Dual fuel To activate the indoor second heater.Outdoor W terminal outputs 24Vac once the system needs it. a. Work when the HP cannot to be started because of Ta <...
  • Page 64 Ecoer TDi Pro2 Service Manual www.ecoer.com 64/67 With the third AHU: E-heater or Dual fuel To activate the indoor second heater. Outdoor W terminal outputs 24Vac once the system needs it. a. Work when the HP cannot to be started because of Ta <...
  • Page 65 Ecoer TDi Pro2 Service Manual www.ecoer.com 65/67 With the Furnace: Dual fuel To activate the second heater. Outdoor W terminal outputs 24Vac once the system needsit. a. Work when the HP cannot to be started because of Ta < the value of n01 setting in heating.
  • Page 66 Ecoer TDi Pro2 Service Manual www.ecoer.com 66/67 With the Dual Fuel Kit ： Wiring for 4H2C thermostat (with Dual Fuel Kit) Wiring for 2H1C thermostat (with Dual Fuel Kit) Fig 10-5 Schematic diagram for control wiring connection Dual fuel NOTES: To activate the second heater.
  • Page 67 Ecoer TDi Pro2 Service Manual www.ecoer.com 67/67 5.10.2 High voltage power supply WARNING During installation, testing, servicing, and trouble shooting of this product, it may be necessary to work with live electrical components. Failure to follow all electrical safety precautions when exposed to live electrical components could result in death or serious injury.

  • Page 68: Electrical Wring-Indoor Unit

    Ecoer TDi Pro2 Service Manual www.ecoer.com 68/67 5.10.4 High voltage ground Ground the condensing unit according to National, State, and Local code requirements. 5.11 Electrical Wring- Indoor unit Field wiring must comply with the National Electric Code (C.E.C. in Canada) and any applicable local ordinance.
  • Page 69 Ecoer TDi Pro2 Service Manual www.ecoer.com 69/67 Signal Wiring Diagrams : With ECOER Heat Pump • Wiring for 4H2C thermostat(support auto airflow) Thermostat Air handler • Wiring for 2H1C thermostat (support auto airflow) Thermostat Air handler Manufacturer reserves the right to change specifications or designs without notice.
  • Page 70 Ecoer TDi Pro2 Service Manual www.ecoer.com 70/67 Signal Wiring Diagrams : With Zone control Caution It is mandatory to install bypass ducts when connecting to the Zone system since our models are equipped with constant air volume motors • Wiring for 4H2C Zone control (support auto airflow)
  • Page 71 Ecoer TDi Pro2 Service Manual www.ecoer.com 71/67 Signal Wiring Diagrams : With the third Heat Pump • Wiring for 4H2C thermostat(setting 2-stage airflow) Thermostat Air handler • Wiring for 2H1C thermostat (setting 2-stage airflow) Thermostat Air handler NOTICE If the third-party ODU does not support capacity adjustment, select 2-stage air volume control by switch Manufacturer reserves the right to change specifications or designs without notice.
  • Page 72 Ecoer TDi Pro2 Service Manual www.ecoer.com 72/67 Signal Wiring Diagrams : With the third cooling only • Wiring for 4H2C thermostat(setting 2-stage airflow) Thermostat Air handler • Wiring for 2H1C thermostat (setting 2-stage airflow) Thermostat Air handler NOTICE If the third-party ODU does not support capacity adjustment, select 2-stage air volume control by switch.
  • Page 73 Ecoer TDi Pro2 Service Manual www.ecoer.com 73/67 5.11.3 Grounding WARNING The unit must be permanently grounded. Failure to do so can result in electrical shock causing personal injury or death. • Grounding may be accomplished by grounding metal conduit when installed in accordance with electrical codes to the unit cabinet.

  • Page 74: Maintenance

    BS3 button to calculate DSH (The difference between parameter “11” and “18”) or check SC/DSH via ESS Pro App. Table -1 Charge amount table Factory Charge multiplier for liquid Model Indoor Charge amount for ecoer air handler charge line length 2436 The data on 0.6 oz/ft nameplate...
  • Page 75 Ecoer TDi Pro2 Service Manual www.ecoer.com 75/67 6.1.2 Auto charge mode NOTES: 1. This AUTO charge mode is suitable for ambient temperature between 50℉ and 115℉. But for the best results, indoor temperature should be kept between 70℉ and 80℉. For outdoor ambient temperature is below 50 ℉...
  • Page 76 Ecoer TDi Pro2 Service Manual www.ecoer.com 76/67 Refrigerant coefficient The refrigerant coefficient is used to evaluate the refrigerant level in the ecoer system. Undercharged Overcharged Proper Use either way below to end AUTO charge mode Press BS4 once/ After 2 hours running (Automatically EXIT)/ Turn off the system at thermostat...
  • Page 77 Ecoer TDi Pro2 Service Manual www.ecoer.com 77/67 6.1.3 Sub-cooling charge Refer to the following steps to charge refrigerant by sub-cooling degree in cooling mode. Table 1 Superheat calculation on gas service valve STEP1 CALCULATE SUPERHEAT ON SUCTION VALVE Final Superheat ( ℉ ) Suction line TEMP ( ℉...
  • Page 78 Ecoer TDi Pro2 Service Manual www.ecoer.com 78/67 STEP3 ADJUST REFRIGERANT LEVEL TO ATTAINPROPER GAUGE PRESSURE Add refrigerant if the sub-cooling is lower than the chart value. 1. Connect gauge hoses to refrigerant tank and liquid/gas service valves (Use gauge port instead of gas service valve for charge in heating.

  • Page 79: Pump Down Function

    Ecoer TDi Pro2 Service Manual www.ecoer.com 79/67 6.2 Pump down function Pump down in cooling only Actuator Pump down in cooling Rated compress speed to Low compressor Compressor (INV) speed Outdoor fan (FAN) Cooling fan control Reversing valve (ST1) De-energized...

  • Page 80: Eev Maintenance Guide

     Table 1 provides compatibility details for different electronic expansion valves (EEVs) and lists their corresponding compatible product series.  When replacing an EEV in an ecoer product, the after-sales warehouse will dispatch a repair kit, which includes: EEV valve body & EEV coil ...
  • Page 81 EAHDEN-60ABA Table 2  When an Ecoer product requires EEV coil replacement, the service warehouse will dispatch a parts kit containing two EEV coils, only one of which is compatible with the unit's electronic expansion valve. Service technicians should refer to this service guide to select the correct EEV coil, ensuring proper matching with the unit's electronic expansion valve.
  • Page 82 Ecoer TDi Pro2 Service Manual www.ecoer.com 82/67 Important: The replacement EEV coil must be of the same model as the original faulty coil. Otherwise, it will not be compatible with the unit's electronic expansion valve! Component Image Parts Name External View of the Coil...

  • Page 83: Product Features

    Ecoer TDi Pro2 Service Manual www.ecoer.com 83/67 7. Product Features 7.1 Default display LED on main control board can display the operating status of outdoor unit (ODU). SEG1 SEG2 SEG3 7 segment display SEG1: Normally blank, but it displays codes “0 to 9” accordingly if there is damaged sensor and command response.

  • Page 84: Protection Controls

    Ecoer TDi Pro2 Service Manual www.ecoer.com 84/67 7.2 Protection controls 7.2.1 High pressure protection control High pressure (HP) protection control is used to prevent extremely high pressures in the system and protect the compressor. Normal operation (Upper limit compressor step = Max. step) HP≥C...
  • Page 85 Ecoer TDi Pro2 Service Manual www.ecoer.com 85/67 7.2.2 Low pressure protection control in cooling mode Low pressure (LP) protection control in cooling is used to protect compressor against the transient decrease of low pressure. Normal operation (Upper limit compressor step = Max. step) LP<C...
  • Page 86 Ecoer TDi Pro2 Service Manual www.ecoer.com 86/67 7.2.3 Discharge temperature protection control This discharge temperature (TD) protection control is used to protect the compressor internal temperature against a malfunction or transient increase of discharge pipe temperature. Normal operation (Upper limit compressor step = Max. step) TD<D...
  • Page 87 Ecoer TDi Pro2 Service Manual www.ecoer.com 87/67 7.2.4 INV Module temperature protection control Inverter module temperature (TF) protection control is performed to prevent tripping due to an abnormal increase in temperature. Normal operation (Upper limit compressor step = Max. step) TF≥C...
  • Page 88 Ecoer TDi Pro2 Service Manual www.ecoer.com 88/67 7.2.5 Compressor over-current protection control This control is performed to prevent tripping due to an abnormal transient compressor current (IA). Normal operation (Upper limit compressor step = Max. step) IA≥C IA<D IA<D Upper limit compressor step = Current step IA≥B...
  • Page 89 Ecoer TDi Pro2 Service Manual www.ecoer.com 89/67 Modes list (SEG3 Display) SEG1 SEG2 SEG3 Stop or standby SEG1 SEG2 SEG3 Ready to start-up SEG1 SEG2 SEG3 Cooling SEG1 SEG2 SEG3 Heating SEG1 SEG2 SEG3 Oil return SEG1 SEG2 SEG3 Defrost...

  • Page 90: Control Logic Description

    Ecoer TDi Pro2 Service Manual www.ecoer.com 90/67 7.3 Control logic description 7.3.1 Defrost control This system carries out demand defrost control if any one of the following conditions is satisfied. The calculated temperature difference between ambient temperature (TA) and defrost temperature (TH) is called Delta T.

  • Page 91: Compressor Control

    Ecoer TDi Pro2 Service Manual www.ecoer.com 91/67 7.3.4 Compressor control Standby PI Control Start-up control Pressure differential control Depending onthe load of MAX time (cooling) ≤ 10 minutes the space. MAX time (heating) ≤ 15 minutes Outdoor Capacity 2ton 3ton...
  • Page 92 5Ton 7.3.7 Snow Sensor Control To prevent the fan of condensing unit from covering up by heavy ice. Ecoer equips with the snow sensor control function if the ambient temperature is no higher than 41F. When the snow sensor control works, ODM rotate at the 3th step for 2min then shut down.

  • Page 93: Setting By Dip Switches

    Ecoer TDi Pro2 Service Manual www.ecoer.com 93/67 7.4 Setting by dip switches Condensing functions can be applied by dipping switch and pressing buttons. SW1 Dip switch Description NO ． Setting item Status Content Disable Snow Sensor Control OFF (factory) Enable...

  • Page 94: Setting Mode

    Ecoer TDi Pro2 Service Manual www.ecoer.com 94/67 7.6 Setting mode Symbol Function Item Description 0 (factory) Normal (Energy Saving) mode Dry mode *1 Mode choice High capacity mode *2 Stop heat pump when TA<-22 ℉ Stop heat pump when TA<-3 ℉...
  • Page 95 Ecoer TDi Pro2 Service Manual www.ecoer.com 95/67 Symbol ： n00 & n01 Symbol Display Item Description SEG1 SEG2 SEG3 Normal (Energy Saving) mode SEG1 SEG2 SEG3 SEG1 SEG2 SEG3 Dry mode: The evaporating temperature of indoor coil can drop down to 28℉.
  • Page 96 Ecoer TDi Pro2 Service Manual www.ecoer.com 96/67 Symbol ： n01 Symbol Display Item Description SEG1 SEG2 SEG3 Forced heat pump stop when ambient temperature <-20℉. Switching to heat by gas furnace or boiler in cold winter. SEG1 SEG2 SEG3 Forced heat pump stop when ambient temperature <25℉.
  • Page 97 Ecoer TDi Pro2 Service Manual www.ecoer.com 97/67 Symbol ： n02 & n03 (The activation condition for n03 requires n02 to be configured to 0) Symbol Display Item Description SEG1 SEG2 SEG3 Start indoor electric auxiliary heater when ambient temperature (TA) <15℉...
  • Page 98 Ecoer TDi Pro2 Service Manual www.ecoer.com 98/67 Symbol ： n03 (The activation condition for n03 requires n02 to be configured to 0) Symbol Display Item Description SEG1 SEG2 SEG3 Start indoor electric auxiliary heater SEG1 SEG2 SEG3 when ambient temperature (TA) <35℉...
  • Page 99 Ecoer TDi Pro2 Service Manual www.ecoer.com 99/67 Example for n02 & n03 (Dual-heating) setting Manufacturer reserves the right to change specifications or designs without notice. Feb 2025...
  • Page 100 Ecoer TDi Pro2 Service Manual www.ecoer.com 100/67 Symbol ： n04 & n05 Item Description SEG1 SEG2 SEG3 Defrost mode in heavy snow area: Heating time will reduce about 10% compare to standard defrost. SEG1 SEG2 SEG3 SEG1 SEG2 SEG3 Standard defrost mode...
  • Page 101 Ecoer TDi Pro2 Service Manual www.ecoer.com 101/67 Symbol ： n06 & n07 Symbol Display Item Description Night silent setting- start at 17:00 Night silent setting- start at 18:00 SEG1 SEG2 SEG3 Night silent setting- start at 19:00 Night silent setting- start at...
  • Page 102 Ecoer TDi Pro2 Service Manual www.ecoer.com 102/67 Illustration for n05 to n07 settings Manufacturer reserves the right to change specifications or designs without notice. Feb 2025...
  • Page 103 Ecoer TDi Pro2 Service Manual www.ecoer.com 103/67 Symbol ： n08 & n17 Symbol Display Item Description SEG1 SEG2 SEG3 SEG1 SEG2 SEG3 Forced defrost off (factory) SEG1 SEG2 SEG3 n08 is temporary setting and Forced defrost reverts to default after operation.

  • Page 104: Troubleshooting

    • Lack of refrigerant • Check refrigerant amount or any leaks Remarks: Ecoer systems are compatible with most traditional 24VACthermostats. CAUTION Reversing valve is energized (208/230VAC) in heating mode. Manufacturer reserves the right to change specifications or designs without notice.

  • Page 105: Error Definition

    Ecoer TDi Pro2 Service Manual www.ecoer.com 105/67 No Display The unit energized but the digital tube shows nothing 1.Error definition: No display on main control board even though the unit has been powered ON. 2.Possible causes: Damaged noise filter ...

  • Page 106: Error Codes List

    Ecoer TDi Pro2 Service Manual www.ecoer.com 106/67 8.2 Error Codes List Error codes can be inquired by BS3 button, and seen on Ecoer Smart Service Pro App. Sign in App >Files >Service, refer to Ecoer Decades Pro service manual for troubleshooting details. Code Description...

  • Page 107: Troubleshooting By Error Code

    Ecoer TDi Pro2 Service Manual www.ecoer.com 107/67 8.3 Troubleshooting by Error Code Display High pressure protection 1.Error definition: P1: The detected high pressure is no less than 566psig. E1: System locks up when P1 has occurred six times within 3 hours.
  • Page 108 Ecoer TDi Pro2 Service Manual www.ecoer.com 108/67 Display Low pressure protection in cooling mode 1.Error definition: P2: The detected low pressure in cooling mode is less than 24.5psig. E2: System locks up when P2 has occurred six times within 3 hours.
  • Page 109 Ecoer TDi Pro2 Service Manual www.ecoer.com 109/67 Display Compressor discharge temperature (TD) protection 1.Error definition: P3: The detected discharge temperature(TD) is no less than specified value. Cooling: 248℉ Heating: 230℉ E3: System locks up when P3 has occurred six times within 3 hours.
  • Page 110 Ecoer TDi Pro2 Service Manual www.ecoer.com 110/67 Display Compressor discharge temperature (TD) sensor is disconnected or damaged 1.Error definition: Compressor discharge temperature (TD) sensor is disconnected or damaged. TD<Tc-9℉ for 20 minutes, Tc means the condensing temperature. 2.Possible causes: Discharge temperature (TD) sensor is disconnected or damaged ...
  • Page 111 Ecoer TDi Pro2 Service Manual www.ecoer.com 111/67 Display Inverter module temperature (TF) protection 1.Error definition: P5: The detected value of module temperature (TF) is no less than specified value. EODA18H-2436B: 199℉ in cooling mode/ 185℉ in heating mode EODA18H-4860B: 203℉ in cooling mode/ 185℉ in heating mode E5: System locks up when P5 has occurred six times within 3 hours.
  • Page 112 Ecoer TDi Pro2 Service Manual www.ecoer.com 112/67 Display Compressor over-current protection 1.Error definition: P6: The detected compressor current is over the maximum allowed value. EODA18H-2436B: 14A EODA18H-4860B: 20A E6: System locks up when P6 has occurred six times within 3 hours.
  • Page 113 Ecoer TDi Pro2 Service Manual www.ecoer.com 113/67 Display Liquid slugging protection 1.Error definition: This control is to prevent compressor from damaging because of liquid slugging. When SH<9.0℉ and compressor discharge superheat (DSH=TD-SC-TL-1.8) <14.4℉ for 20 minutes, starting to accumulate the liquid slugging time. Report P7 once it lasts for 30 minutes.

  • Page 114: Heating Mode

    Ecoer TDi Pro2 Service Manual www.ecoer.com 114/67 Display Liquid slugging protection Heating mode Connect a pressure gauge to liquid service valve, compare the gauged pressure with the transduced one by high pressure sensor. Check whether the heating operation is abnormal, high pressure...
  • Page 115 Ecoer TDi Pro2 Service Manual www.ecoer.com 115/67 Display Low compressor voltage protection 1.Error definition: P8: The detected compressor voltage by main chip is less than 310VDC. E8: System locks up when P8 has occurred three times in 60 minutes. 2.Possible causes: Abnormal power supply voltage ...
  • Page 116 The unit is undergoing hurricane  Disconnected wiring between fan motor and main control board  Had the IoT device successfully communicated with Ecoer cloud Make sure the IoT device works after installation? *NOTE properly. Waiting for the wind to decrease...
  • Page 117 Ecoer TDi Pro2 Service Manual www.ecoer.com 117/67 Display Ambient temperature (TA) sensor fault 1.Error definition: The outside temperature (TA) sensor is short circuit or open circuit. 2.Possible causes: Damaged main control board  Loose connection at port on main control board ...
  • Page 118 Ecoer TDi Pro2 Service Manual www.ecoer.com 118/67 Display Compressor suction temperature (TS) sensor fault 1.Error definition: The suction temperature (TS) sensor is short circuit or open circuit. 2.Possible causes: Damaged main control board  Loose connection at port on main control board ...
  • Page 119 Ecoer TDi Pro2 Service Manual www.ecoer.com 119/67 Display Liquid line temperature (TL) sensor fault 1.Error definition: The liquid temperature (TL) sensor is short circuit or open circuit. 2.Possible causes: Damaged main control board  Loose connection at port on main control board ...
  • Page 120 Ecoer TDi Pro2 Service Manual www.ecoer.com 120/67 Display Defrost temperature (TH) sensor fault 1.Error definition: The defrost temperature (TH) sensor is short circuit or open circuit. 2.Possible causes: Damaged main control board  Loose connection at port on main control board ...
  • Page 121 Ecoer TDi Pro2 Service Manual www.ecoer.com 121/67 Display Compressor discharge temperature (TD) sensor fault 1.Error definition: The discharge temperature (TD) sensor is short circuit or open circuit. 2.Possible causes: Damaged main control board  Loose connection at port on main control board ...
  • Page 122 Ecoer TDi Pro2 Service Manual www.ecoer.com 122/67 Display Inverter module temperature (TF) sensor fault 1.Error definition: The module temperature(TF) sensor is short circuit or open circuit. 2.Possible causes: Damaged main control board  Loose connection at port on main control board ...
  • Page 123 Ecoer TDi Pro2 Service Manual www.ecoer.com 123/67 Display High pressure (HP) sensor fault 1.Error definition and method to check: The high pressure sensor is open or shorted. The voltage between CN10 pin(1) and (2) is not in the range 0.59~4.76VDC.
  • Page 124 Ecoer TDi Pro2 Service Manual www.ecoer.com 124/67 Display Low pressure (LP) sensor fault 1.Error definition and method to check: The low pressure sensor is open or shorted. The voltage between CN9 pin(1) and (2) is not in the range 0.70~4.50VDC.
  • Page 125 Ecoer TDi Pro2 Service Manual www.ecoer.com 125/67 Display Communication fault between main chip and INV drive chip 1.Error definition and method to check: Communication fault between the main control chip and inverter chip. 2.Possible causes: Loose connection at CN21 terminal ...
  • Page 126 Ecoer TDi Pro2 Service Manual www.ecoer.com 126/67 Display Heavy undercharge limit operation 1.Error definition: Heavy undercharge when turn to operation. 2.Possible causes: Refrigerant leakage  Refrigerant undercharge  HP/LP Pressure failure  Temperature sensor(TH/TL/Ta) failure  Occasional sensor anomaly ...
  • Page 127 Ecoer TDi Pro2 Service Manual www.ecoer.com 127/67 Display Ambient temperature limit operation 1.Error definition and method to check: H1: The detected ambient temperature is absolutely prohibited for cooling. TA<20℉ or ≥140℉ H2: The detected ambient temperature is absolutely prohibited for heating.
  • Page 128 Ecoer TDi Pro2 Service Manual www.ecoer.com 128/67 Display Abnormal switch alarm for reversing valve 1.Error definition: 4-way (reversing) valve switches incompletely after defrost operation or from cooling mode. Report H3 alarm if TH ≥ TL+10.8℉ and TH ≥ TA+5.4℉. 2.Possible causes: Damaged reversing valve(coil or body) ...
  • Page 129 Ecoer TDi Pro2 Service Manual www.ecoer.com 129/67 Display Defrost temperature (TH) sensor is disconnected or damaged 1.Error definition: The defrost temperature (TH) sensor is short circuit or open circuit. 2.Possible causes: Damaged main control board  The defrost temperature sensor is wrongly seated ...

  • Page 130: Eeprom Fault

    Ecoer TDi Pro2 Service Manual www.ecoer.com 130/67 Display EEPROM fault 1.Error definition: Data cannot be correctly received from the EEPROM to main chip. EEPROM, a type of memory component, remembers contents even though power off. 2.Possible causes: Damaged main control board ...
  • Page 131 Ecoer TDi Pro2 Service Manual www.ecoer.com 131/67 Display Abnormal function control 1.Error definition: Cannot exit special control (start-up, oil return or defrost) 2.Possible causes: Very poor charge  The compressor does not work properly  Abnormal signal input from thermostat ...
  • Page 132 Ecoer TDi Pro2 Service Manual www.ecoer.com 132/67 Display Refrigerant leakage alarm 1.Error definition: Indoor refrigerant leakage alarm 2.Possible causes: The indoor coil is leaking  The refrigerant leakage sensor is faulty  The refrigerant leakage sensor has reached its service life ...
  • Page 133 Ecoer TDi Pro2 Service Manual www.ecoer.com 133/67 Display Compressor INV module ～ protection 1.Error definition: Code LED Display Definition Critical over-voltage fault DC bus over-voltage protection DC bus under-voltage protection Over-current protection Zero speed fault Compressor speed inconsistent fault Compressor speed difference between given transient variation...
  • Page 134 Ecoer TDi Pro2 Service Manual www.ecoer.com 134/67 Display Compressor INV module ～ protection Contact power supply agency to The power supply voltage is not in the range of 187~253VAC. verify that they are sending the correct voltage. Replace the indoor coil...

  • Page 135: Outdoor Unit Spot Check

    Ecoer TDi Pro2 Service Manual www.ecoer.com 135/67 8.4 Outdoor Unit Spot check System states can be showed on the 7 segments display (LED) of outdoor unit. Press the BS3 button to obtain the code number and corresponding information at one-secondintervals.

  • Page 136: Appendix

    Ecoer TDi Pro2 Service Manual www.ecoer.com 136/67 Appendix .1 Performance Sheet COOLING-2TON TC: Total capacity (MBH) S/T: Sensible heat ratio Indoor Airflow Outdoor IWB(°F) (CFM) DB(°F) IDB(°F) 16.4 17.1 17.9 18.6 18.9 19.3 19.8 20.2 21.2 21.4 21.5 21.6 24.7 24.8...
  • Page 137 Ecoer TDi Pro2 Service Manual www.ecoer.com 137/67 TC: Total capacity (MBH) S/T: Sensible heat ratio COOLING-2TON 2TON SYSTEM-----EODA19H-2436ABA+EAHDEN-24ABA Indoor Airflow Outdoor IWB(°F) (CFM) DB(°F) IDB(°F) 19.9 20.7 21.6 22.6 22.9 23.4 23.9 24.5 25.7 25.9 26.0 26.1 29.8 30.0 30.2 0.69...
  • Page 138 Ecoer TDi Pro2 Service Manual www.ecoer.com 138/67 TC: Total capacity (MBH) S/T: Sensible heat ratio COOLING-3TON 3TON SYSTEM-----EODA19H-2436ABA+EAHDEN-36ABA Indoor Airflow Outdoor IWB(°F) (CFM) DB(°F) IDB(°F) 26.8 28.0 29.2 30.4 30.9 31.6 32.3 33.0 34.7 34.9 35.1 35.3 40.2 40.5 40.7 0.65...
  • Page 139 Ecoer TDi Pro2 Service Manual www.ecoer.com 139/67 TC: Total capacity (MBH) S/T: Sensible heat ratio COOLING-ULTRA 3TON ULTRA 3TON SYSTEM-----EODA19H-4860ABA+EAHDEN-36ABA Indoor Airflow Outdoor IWB(°F) (CFM) DB(°F) IDB(°F) 23.7 24.7 25.8 26.9 27.2 27.9 28.5 29.1 30.6 30.8 31.0 31.1 35.5 35.7...
  • Page 140 Ecoer TDi Pro2 Service Manual www.ecoer.com 140/67 TC: Total capacity (MBH) S/T: Sensible heat ratio COOLING-ULTRA 3TON ULTRA 3TON SYSTEM-----EODA19H-4860ABA+EAHDEN-36ABA Indoor Airflow Outdoor IWB(°F) (CFM) DB(°F) IDB(°F) 29.9 31.2 32.5 33.9 34.4 35.1 35.9 36.7 38.6 38.8 39.1 39.3 44.8 45.1...
  • Page 141 Ecoer TDi Pro2 Service Manual www.ecoer.com 141/67 TC: Total capacity (MBH) S/T: Sensible heat ratio COOLING-4TON 4TON SYSTEM-----EODA19H-4860ABA+EAHDEN-48ABA Indoor Airflow Outdoor IWB(°F) (CFM) DB(°F) IDB(°F) 36.9 38.5 40.2 41.9 42.5 43.5 44.4 45.4 47.8 48.0 48.3 48.6 55.4 55.7 56.0 0.63...
  • Page 142 Ecoer TDi Pro2 Service Manual www.ecoer.com 142/67 TC: Total capacity (MBH) S/T: Sensible heat ratio COOLING-5TON 5TON SYSTEM-----EODA19H-4860ABA+EAHDEN-60ABA Indoor Airflow Outdoor IWB(°F) (CFM) DB(°F) IDB(°F) 36.6 38.2 39.9 41.6 42.2 43.1 44.1 45.1 47.4 47.7 47.9 48.2 55.0 55.3 55.6 0.55...
  • Page 143 Ecoer TDi Pro2 Service Manual www.ecoer.com 143/67 TC: Total capacity (MBH) S/T: Sensible heat ratio COOLING-5TON 5TON SYSTEM-----EODA19H-4860ABA+EAHDEN-60ABA Indoor Airflow Outdoor IWB(°F) (CFM) DB(°F) IDB(°F) 45.8 47.8 49.9 52.0 52.8 53.9 55.2 56.4 59.3 59.6 60.0 60.3 68.8 69.2 69.6 0.69...
  • Page 144 Ecoer TDi Pro2 Service Manual www.ecoer.com 144/67 HEATING-2TON 2TON SYSTEM-----EODA19H-2436ABA+EAHDEN-24ABA OUTDOOR AMBIENT TEMPERATURE(°F) INDOOR AIR IDB(°F) 10.9 2.57 1.24 13.3 2.59 1.51 15.7 2.60 1.77 18.9 2.60 2.13 21.7 2.59 2.46 21.7 2.17 2.93 22.0 1.94 3.32 22.4 1.81 3.63 22.4...
  • Page 145 Ecoer TDi Pro2 Service Manual www.ecoer.com 145/67 HEATING-5TON 5TON SYSTEM-----EODA19H-4860ABA+EAHDEN-60ABA OUTDOOR AMBIENT TEMPERATURE(°F) INDOOR AIR IDB(°F) 21.3 5.50 1.14 26.0 5.56 1.37 30.6 5.58 1.61 36.8 5.59 1.93 41.2 5.04 2.40 44.8 4.79 2.74 50.0 4.54 3.23 51.0 4.24 3.53 51.0...
  • Page 146 Ecoer TDi Pro2 Service Manual www.ecoer.com 146/67 ©2025 ECOER INC. 4040 McDermott Road, Suite 200 Plano, Texas 75024 Tel: 703-348-2538 www.ecoer.com Manufacturer reserves the right to change specifications or designs without notice. Feb 2025...

This manual is also suitable for:

Tdi pro 2 eahden-36abaTdi pro 2 eahden-48abaTdi pro 2 eahden-60abaTdi pro 2 eoda19h-2436abaTdi pro 2 eoda19h-4860aba

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