Ecoer ERDA19H-60AAA Installation Manual

Inverter ducted packaged 5 ton r-410a heat pump

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RTi Rooftop IM

NOTE: Appearance of unit may vary.

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.

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 of 36

Installation Manual

Inverter Ducted Packaged

5 Ton R-410A Heat Pump

Contents

1. Safety-------------------------------------------------

2. Unit Dimensions-------------------------------

3. Installation-------------------------------------

4. Electrical Requirement------------------------

5. Airflow Performance-------------------------

6. Indoor Blower control function------------

7. Start-up-----------------------------------------

8. System Charge Adjustment------------------

9. System Operation-----------------------------

10. Troubleshooting-------------------------------

11. Wiring Diagram-------------------------------

ECOER INC.

Apr. 2024

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Page 1: Table Of Contents
RTi Rooftop IM 1 of 36 ECOER INC. Installation Manual Inverter Ducted Packaged 5 Ton R-410A Heat Pump Contents 1. Safety------------------------------------------------- 2. Unit Dimensions------------------------------- 3. Installation------------------------------------- 4. Electrical Requirement------------------------ 5. Airflow Performance------------------------- 6. Indoor Blower control function------------ 7. Start-up----------------------------------------- 8. System Charge Adjustment------------------ NOTE: Appearance of unit may vary.
Page 2: Safety
RTi Rooftop IM 2 of 36 ECOER INC. 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 RTi Rooftop IM 3 of 36 ECOER INC. 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 Dimensions
RTi Rooftop IM 4 of 36 ECOER INC. 2 Unit Dimensions 2.1 Unit Dimensions Figure 2.1 External dimensions Dimensions (Inch [mm]) Model 19-11/16 15-1/2 47-11/64 44-7/8 50-19/32 51-19/32 ERDA19H-60AAA [500] [394] [1198] [1140] [1285] [1310] Table 2.1 Unit Dimensions Model...
Page 5 RTi Rooftop IM 5 of 36 ECOER INC. 2.2 Dimensions - Back and Bottom Figure 2.2 Back Figure 2.3 Bottom Dimensions (Inch [mm]) Model 15-27/32 13-13/16 16-3/32 14-3/32 ERDA19H-60AAA [402] [352] [409] [358] Table 2.3 Dimensions - Back and Bottom Manufacturer reserves the right to change specifications or designs without notice.
Page 6 RTi Rooftop IM 6 of 36 ECOER INC. 2.3 Dimensions - Left and Top Figure 2.4 Top Figure 2.5 Left Manufacturer reserves the right to change specifications or designs without notice. Apr. 2024...
Page 7: Installation
RTi Rooftop IM 7 of 36 ECOER INC. 3. lnstallion 3.1 Inspect Units Units are packaged for shipment to avoid damage during normal transit and handling. It is the receiving party’s responsibility to inspect the equipment upon arrival. Any obvious damage to the carton box should be...
Page 8 RTi Rooftop IM 8 of 36 ECOER INC. 3.3 Rigging and Lifting Exercise care when moving the unit. Do not remove any packaging until the unit is near the place of installation. Rig the unit by attaching chain or cable slings to the lifting holes provided in the base rails.
Page 9 RTi Rooftop IM 9 of 36 ECOER INC. 3.4 Location Restrictions Exposure to a corrosive environment may shorten the life of the equipment, corrode metal parts, and/or negatively affect unit performance. Corrosive elements include, but are not limited to: sodium chloride, sodium hydroxide, sodium sulfate, and other compounds commonly found in ocean water, sulfur, chlorine, fluorine, fertilizers, and various chemical contaminants from industry/manufacturing plants.
Page 10 RTi Rooftop IM 10 of 36 ECOER INC. Position unit so water, snow, or ice from Min 24’’ Min 12’’ to roof or overhang cannot fall directly on Access Panel Structure unit. Supply Air Duct Figure 3.5 Unit location Cold Climate Considerations...
Page 11 RTi Rooftop IM 11 of 36 ECOER INC. 3.5 Rooftop Installation - Curb Mountin The manufacturer does not supply roof curbs, they must be field supplied. Refer to Figure 3.7 for recommended roof curb dimensions. On applications when a roof curb is used, the unit must be positioned on the curb so the front of the unit is tight against the curb.
Page 12 RTi Rooftop IM 12 of 36 ECOER INC. 3.6 Ductwork Field ductwork must comply with the National Fire Protection Association NFPA 90A, NFPA 90B and any applicable local ordinance(s). Sheet metal ductwork run in unconditioned spaces must be insulated and covered with a vapor barrier. Fibrous ductwork may be used if constructed and installed in accordance with SMACNA Construction Standard on Fibrous Glass Ducts.
Page 13 RTi Rooftop IM 13 of 36 ECOER INC. 3.7 Install Drain Pipe Unit should be installed in accordance with national and local safety codes, including but not limited to ANSI/NFPS No. 70, local plumbing and wastewater codes and any other applicable codes.
Page 14 RTi Rooftop IM 14 of 36 ECOER INC. 3.8 Air Filter (Not Factory-Installed) Filters and filter racks are not included with the unit and must be field supplied. An external filter or other means of filtration must be properly sized for a maximum of 300 feet/min.
Page 15: Electrical Requirement
RTi Rooftop IM 15 of 36 ECOER INC. 4. Electrical Requirement Power wiring must comply with National, State and Local codes. 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.
Page 16 RTi Rooftop IM 16 of 36 ECOER INC. 4.3 Power Supply WARNING Label all wiring prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing. Any power supply and circuits must be wired and protected in accordance with federal, state and local electrical codes.
Page 17 RTi Rooftop IM 17 of 36 ECOER INC. 4.4 Low voltage signal wiring Class 2 low voltage control wiring should not be run in conduit with main power wiring and must be separated from power wiring, unless class 1 wire of proper voltage rating is used.
Page 18: Airflow Performance
RTi Rooftop IM 18 of 36 ECOER INC. 5. 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 19: Indoor Blower Control Function
This function requires that the DIP switch of SW10-3 need be set to the ON, which is OFF by default. 6.4 Dehumidification function The RTi packaged unit supports the dehumidification fuction response with ECOER EST02 in cooling. When there is Dh (24v) call from thermostat, the blower motor will turn to low speed.
Page 20: Start-Up
RTi Rooftop IM 20 of 36 ECOER INC. 7. Start-up Prior to start-up the unit, connect IoT device if equipped with. Refer to IoT IM and Registration Guide via ESS Pro App. At the same time, ensure installation actions have been completed.
Page 21: System Charge Adjustment
RTi Rooftop IM 21 of 36 ECOER INC. 8. System Charge Adjustment 8.1 Weigh-in method Weigh-in method can be used for the initial installation, or anytime a system charge needs to be replaced. Weigh-in method can also be used when power is not available on the job site or the ambient temperature is improper to use refrigerant coefficient and sub-cooling charge method.
Page 22 RTi Rooftop IM 22 of 36 ECOER INC. 8.2 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℉, use weigh-in charge method only.
Page 23 RTi Rooftop IM 23 of 36 ECOER INC. 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 24 RTi Rooftop IM 24 of 36 ECOER INC. 8.3 Sub-cooling check Refer to the following steps to charge refrigerant by sub-cooling degree in cooling charge mode. STEP1 CALCULATE SUPERHEAT ON SUCTION LINE Final Superheat (℉) Suction line TEMP (℉) Suction Gauge Pressure (PSIG) Measured suction line temperature = ___________℉...
Page 25 RTi Rooftop IM 25 of 36 ECOER INC. STEP3 STABILIZE THE SYSTEM RECORD 1. Wait twenty (20) minutes for the unit to stabilize. When the sub-cooling matches the chart, the system is properly charged. 2. Only the discharge pressure (HP) can be measured, and the suction pressure (LP) is in the normally closed state.
Page 26: System Operation
RTi Rooftop IM 26 of 36 ECOER INC. 9. System Operation 9.1 Default display LED on main control board can display the operating status of outdoor unit (ODU). 7 segment display SEG1 SEG2 SEG3 SEG1: Normally blank, but it displays codes “0 to 9” accordingly if there is damaged sensor and command response.
Page 27 RTi Rooftop IM 27 of 36 ECOER INC. Mode 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...
Page 28 RTi Rooftop IM 28 of 36 ECOER INC. 9.2 Field setting in drive PCB Outdoor condensing units’ functions can be applied by dipping switch and pressing buttons. 9.2.1 Setting by dip switches SW1 Dip switch Description NO ． Setting item...
Page 29 RTi Rooftop IM 29 of 36 ECOER INC. Default mode (Spot check) System states can be showed on the 7 segments display (LED) of outdoor unit. Press BS3 button to get the code number and corresponding information with an interval of one second.
Page 30 RTi Rooftop IM 30 of 36 ECOER INC. Setting mode Press and hold BS1 button for five (5) seconds to enter the parameter setting interface. The latest setting will be taken as the final one. Symbol Function Item Description 0 (factory)
Page 31 RTi Rooftop IM 31 of 36 ECOER INC. 9.3 Major components function Evaporator Condenser Blower (ST1) Gauge Port Gauge Port Figure 9.3 Refrigerant Circuit Name Symbol Function Adjusts refrigerant flow rate by changing the speed (RPS) based on objective Inverter compressor pressure.
Page 32 RTi Rooftop IM 32 of 36 ECOER INC. 9.4 Control logic description 9.4.1 Operation mode SW1_3=OFF (factory), RTi system uses Y/O/C signal to operate heat pump function. SW1_3=ON has been set, RTi system uses Y/C signal to run cooling only.
Page 33 RTi Rooftop IM 33 of 36 ECOER INC. 9.4.4 Defrost control This system carries out demand defrost control if any one of the following conditions satisfy. The calculated temperature difference between ambient temperature (TA) and defrost temperature (TH) is called Delta T. After Delta T is achieved and continues for 5 minutes.
Page 34: Troubleshooting
RTi Rooftop IM 34 of 36 ECOER INC. 10. Troubleshooting If the system does not operate properly besides any malfunctions. Check the system based on the following procedures. Symptoms Possible causes Solutions System does not • No 24 VAC for Y signal from •...
Page 35 35 of 36 ECOER INC. Error codes List for Condensing Unit Error codes can be inquired by BS3 button, and seen on Ecoer Smart Service Pro App. Sign in App >Files >Service, refer to RTi service manual for troubleshooting details. Code...
Page 36: Wiring Diagram
RTi Rooftop IM 36 of 36 ECOER INC. 11. Wiring Diagram Manufacturer reserves the right to change specifications or designs without notice. Apr. 2024...
Page 37 RTi Rooftop IM 37 of 36 ECOER INC. This page is intentionally left blank. Manufacturer reserves the right to change specifications or designs without notice. Apr. 2024...
Page 38 RTi Rooftop IM 38 of 36 ECOER INC. This page is intentionally left blank. Manufacturer reserves the right to change specifications or designs without notice. Apr. 2024...
Page 39 RTi Rooftop IM 39 of 36 ECOER INC. This page is intentionally left blank. Manufacturer reserves the right to change specifications or designs without notice. Apr. 2024...
Page 40 RTi Rooftop IM 40 of 36 ECOER INC. ©2022 ECOER INC. 43671 Trade Center Place, Suite 100 Dulles, VA 20166 Tel: 703-348-2538 www.ecoer.com Manufacturer reserves the right to change specifications or designs without notice. Apr. 2024...

Ecoer ERDA19H-60AAA Installation Manual

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