Ecoer TDi Pro 2 AHU IM Installation Manual

High efficiency air handlers 2-5ton capacity r-454b eev inside

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Ecoer TDi Pro 2 AHU IM
Installation Manual
High Efficiency Air Handlers
2-5Ton Capacity
R-454B EEV Inside
Contents
1. Safety Instructions---------------------------------
2. Dimensions-----------------------------------------
3. Applications-----------------------------------------
4. Electrical Wiring-----------------------------------
6. Airflow Performance------------------------------
7. Ductwork--------------------------------------------
8. Pipe Connections----------------------------------
9. Air Filter---------------------------------------------
This document is customer's property and is to remain with this unit. Please return it to
All phases of this installation must comply with National, State and Local Codes.
customer with service information upon completion of work.
These instructions are intended as an assist to qualified and licensed personnel for proper
installation, adjustment and operation of ECM air handler units. Read it thoroughly before
attempting installation or service work. Failure to follow these instructions may result in fire,
electrical shock, property damage, personal injury or death.
The instructions do not cover all variations in systems or provide for every possible contingency
to be met in connection with the installation.
Manufacturer reserves the right to change specifications or designs without notice.
1 of 37
2
14
16
21
29
NOTE: Appearance of unit may vary.
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Installation must be performed in
accordance with the requirements of
32
NEC and CEC by authorized
33
personnel only.
37
ECOER INC.
Dec. 2024

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  • Page 1: Table Of Contents

    ECOER INC. Ecoer TDi Pro 2 AHU IM 1 of 37 Installation Manual High Efficiency Air Handlers 2-5Ton Capacity R-454B EEV Inside Contents 1. Safety Instructions--------------------------------- 2. Dimensions----------------------------------------- 3. Applications----------------------------------------- 4. Electrical Wiring----------------------------------- 5. Indoor Blower control function ---------------- NOTE: Appearance of unit may vary.
  • Page 2: Safety Instructions

    ECOER INC. Ecoer TDi Pro 2 AHU IM 2 of 37 1. Safety Instructions 1.1 Safety Read the following safety instructions before installing the unit or doing service work. WARNING may cause personal death or serious injury. CAUTION may lead to injury or structural damage under some conditions.
  • Page 3 ECOER INC. Ecoer TDi Pro 2 AHU IM 3 of 37 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.
  • Page 4 ECOER INC. Ecoer TDi Pro 2 AHU IM 4 of 37 WARNING Failure to inspect lines or use proper service tools may result in equipment damage or personal injury. Brazing required! If using existing refrigerant lines make certain that all joints are brazed, not soldered.If refrigerant gas leaks during installation, ventilate the area immediately.
  • Page 5 ECOER INC. Ecoer TDi Pro 2 AHU IM 5 of 37 WARNING Do not use means to accelerate the defrosting process or to clean, other than those recommended by Flammable refrigerant! 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 6 ECOER INC. Ecoer TDi Pro 2 AHU IM 6 of 37 WARNING The appliance can uses R454B refrigerant. Flammable refrigerant! When repairing the refrigerating system, comply with the following precautions Personal Injury, flammable refrigerant! prior to conducting work on the system: •...
  • Page 7 ECOER INC. Ecoer TDi Pro 2 AHU IM 7 of 37 WARNING Ensure that the area is in the open or that it is adequately ventilated before opening the system or Personal Injury, flammable refrigerant! conducting any hot work. A degree of ventilation shall continue during the period that the work is carried out.
  • Page 8 ECOER INC. Ecoer TDi Pro 2 AHU IM 8 of 37 WARNING When breaking into the refrigerant circuit to make repairs or for any other purpose conventional Flammable refrigerant! procedures shall be used. However, for flammable refrigerants it is important that best practice be followed, since flammability is a consideration.
  • Page 9 ECOER INC. Ecoer TDi Pro 2 AHU IM 9 of 37 WARNING Prior to recharging the system, it shall be pressure-tested with the appropriate purging gas. The system Flammable refrigerant! 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 10 ECOER INC. Ecoer TDi Pro 2 AHU IM 10 of 37 WARNING The recovery equipment shall be in good working order with a set of instructions concerning the Flammable refrigerant! 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 11 ECOER INC. Ecoer TDi Pro 2 AHU IM 11 of 37 WARNING The appliances are connected via an air duct system to one or more rooms, the bottom of the air outlet Room size restriction 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 12 ECOER INC. Ecoer TDi Pro 2 AHU IM 12 of 37 The appliances are connected via an air duct system to one or more rooms, the bottom of the air Room size restriction 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 13 ECOER INC. Ecoer TDi Pro 2 AHU IM 13 of 37 •The room into which refrigerant can leak, plus the connected adjacent room(s) shall have a total area of not less than TAmin. •The room area in which the unit is installed shall be not less than 20 %TAmin.
  • Page 14: Dimensions

    ECOER INC. Ecoer TDi Pro 2 AHU IM 14 of 37 NOTE: 25” CLEARANCE IS REQUIRED IN THE 2. Dimensions FRONT OF THE UNIT FOR FILTER AND COIL MAINTENANCE. SUPPLY AIR 10-5/16 FLANGES ARE PROVIDED FOR FIELD INSTALLATION Breaker Switch...
  • Page 15: Installation Position Requirements

    ECOER INC. Ecoer TDi Pro 2 AHU IM 15 of 37 Installation Position Requirements Select a solid and level site, keep enough space for proper installation and maintenance. a) Horizontal Position b) Vertical Position Figure 2-2 Clearance requirement Manufacturer reserves the right to change specifications or designs without notice.
  • Page 16: Applications

    ECOER INC. Ecoer TDi Pro 2 AHU IM 16 of 37 3. Applications 3.1 Selection of installation direction The units can be installed in a vertical (down and up) and Horizontal (right and left) configuration. At least 5in(127mm) Horizontal Vertical up...
  • Page 17 ECOER INC. Ecoer TDi Pro 2 AHU IM 17 of 37 3.2 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 18 ECOER INC. Ecoer TDi Pro 2 AHU IM 18 of 37 3.3 Down flow and Horizontal left instructions Remove the screws from the filter cover, Remove the screws from the upper and STEP 2 STEP 1 support strip 1 and support strip 2 as shown lower panels as shown in Figure 3-3.
  • Page 19 ECOER INC. Ecoer TDi Pro 2 AHU IM 19 of 37 3.3 Down flow and Horizontal left instructions Rotate the outlet of cabinet to the air outlet Secure the screws on support strips 1 and 2 and STEP 4 STEP 5 direction.
  • Page 20 ECOER INC. Ecoer TDi Pro 2 AHU IM 20 of 37 3.3 Down flow and Horizontal left instructions As shown in Figure3- 10, route the wiring harness STEP 7 along the external path and secure it with cable ties. Figure 3-10 Secure the screws on upper and lower panels, and install the filter,filter cover plate.
  • Page 21: Electrical Wiring

    ECOER INC. Ecoer TDi Pro 2 AHU IM 21 of 37 4. Electrical Wiring Field wiring must comply with the National Electric Code (C.E.C. in Canada) and any applicable local ordinance. Disconnect all power to unit before installing or servicing. More than one disconnect switch may be WARNING required to de-energize the equipment.
  • Page 22 ECOER INC. Ecoer TDi Pro 2 AHU IM 22 of 37 Figure 4-1 Indoor unit Wiring Diagram Manufacturer reserves the right to change specifications or designs without notice. Dec. 2024...
  • Page 23: Control Wiring

    • Refer to wiring diagrams attached to indoor and outdoor sections to be connected. • Make sure separation of control wiring and power wiring has been maintained. 4.2.1 Signal Wiring Diagrams : With ECOER HeatPump • Wiring for 4H2C thermostat(support auto airflow)
  • Page 24 ECOER INC. Ecoer TDi Pro 2 AHU IM 24 of 37 4.2.2 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...
  • Page 25 ECOER INC. Ecoer TDi Pro 2 AHU IM 25 of 37 4.2.3 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...
  • Page 26: Electrical Data

    ECOER INC. Ecoer TDi Pro 2 AHU IM 26 of 37 4.3 Grounding The unit must be permanently grounded. WARNING 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 27 ECOER INC. Ecoer TDi Pro 2 AHU IM 27 of 37 4.6 Electric Heat Installation Guide Slide the kit into the duct and fasten Unfasten 4 screws to take away the the element (e.g. attachment and wires). blower access panel of the air handler.
  • Page 28 ECOER INC. Ecoer TDi Pro 2 AHU IM 28 of 37 Disconnect all power to unit before installing or servicing. More than one disconnect switch may be WARNING required to de-energize the equipment. Hazardous voltage can cause severe personal injury or death.
  • Page 29: Indoor Blower Control Function

    ECOER INC. Ecoer TDi Pro 2 AHU IM 29 of 37 5. Indoor Blower Control Function 5.1 Airflow motor speed mode Airflow motor speed mode setting by SW1 Model Remark SW1-1 Airflow motor mode setting 2-stage airflow mode Variable airflow mode...
  • Page 30 ECOER INC. Ecoer TDi Pro 2 AHU IM 30 of 37 5.5 Alarm input Supports alarm input to shut down the HVAC system. When the CN3 receives a 24v alarm input Alarm input signal, the indoor unit shuts down all control components.
  • Page 31: Airflow Performance

    ECOER INC. Ecoer TDi Pro 2 AHU IM 31 of 37 6. Airflow 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 32: Ductwork

    ECOER INC. Ecoer TDi Pro 2 AHU IM 32 of 37 7. Ductwork Field ductwork must comply with the National Fire Protection Association NFPA 90A, NFPA 90B and any applicable local ordinance. Do not, under any circumstances, connect return ductwork to any other heat producing device such as WARNING fireplace insert, stove, etc.
  • Page 33: Pipe Connections

    ECOER INC. Ecoer TDi Pro 2 AHU IM 33 of 37 8. Pipe Connections 8.1 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 34: Refrigerant Piping Connection

    ECOER INC. Ecoer TDi Pro 2 AHU IM 34 of 37 8.2 Refrigerant piping connection All field piping must be completed by a licensed technician and must comply with the local and national WARNING regulations. • When the air conditioner is installed in a small room, measures must be taken to prevent the refrigerant concentration in the room from exceeding the safety limit in the event of refrigerant leakage.
  • Page 35 ECOER INC. Ecoer TDi Pro 2 AHU IM 35 of 37 The machine is equipped with two refrigerant connection pipes assemblies, which support both brazing Air-Handler Air Conditioners Refrigerant Piping Connection and ZoomLock connection methods during installation. Remove the two plastic nuts on top of the machine to release the nitrogen stored inside the evaporator...
  • Page 36 ECOER INC. Ecoer TDi Pro 2 AHU IM 36 of 37 Option 2: Refrigerant Line Zoomlock Connection This ZoomLock connection operation is for reference only. Please follow the ZoomLock tool operation manual for official instructions. 1. Use a rotary tube cutter to cut off the flaring structure of the copper tube.
  • Page 37: Air Filter

    ECOER INC. Ecoer TDi Pro 2 AHU IM 37 of 37 9. Air Filter Filter application and replacement are critical to airflow, which may affect the heating and cooling system performance. Reduced airflow can shorten the life of the system’s major components, such as motor, heat relays, evaporator coil or compressor.
  • Page 38 ECOER INC. Ecoer TDi Pro 2 AHU IM 38 of 37 ©2024 ECOER INC. 4040 McDermott Road,Suite 200 Plano, Texas 75024 Tel: 703-348-2538 www.ecoer.com E.AC.2317000145 Manufacturer reserves the right to change specifications or designs without notice. Dec. 2024...

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