2BAPJ-ELO02Ecolink HVAC Adapter(U)

Part A. Installation and Troubleshooting Ecoer Smart Inverter Unitary systems come equipped with remote monitoring and self-diagnostics technology designed to save dealers’ time when installing and servicing. Be sure to turn off the power supply for condensing unit prior to install the IoT device. Refer to the following steps to install this device. 01.To keep the best wireless network connectivity, choose one side of condensing unit that is further away from the wall to hang the IoT device. Use screw to tighten the device and belts to tie up the cable. 1-A 1-B1-C The 1st row of panel Unscrew the cable locker cap and securely fasten the waterproof joint to the reserved hole (plug has to be removed). 02. Plug the male blue terminal into CN11 (IoT) connector on main control board of condensing unit. 03. 2-C2-A Unscrew the locker cap 2-D2-B Remove reserved plug Power ON the condensing unit and check if the IoT device is working properly. The normal working state of IoT device should be the blue LED (No.1) is blinking with other LEDs light OFF. No. 1 2 3 Blue Red Green IoT Device status Connection to Gateway Connection to Local Unit Always OFF Power off Always ON Booting Blinking Running Always OFF Gateway connected Always ON Booting Blinking Gateway disconnected Always OFF Local Unit connected Always ON Booting Blinking Local Unit disconnected ColorIndications.Description LEDs Check the No.1 LED display after power ON for 40 seconds. The IoT device boots failed. Replace a new one instead. Check if the IoT cable is securely connected with PCB of condensing unit. Replace PCB of condensing unit. The problem disappears after replace IoT device. 1. Confirm the gateway is powered on and connected to the router accessed to internet. 2. Register the device 3. Adjust the position of gateway or device to make sure they can communicate Check the display of No.3 LED after two (2) minutes. Check the display of No.2 LED after ten (10) minutes. Done ModelPart Name ELO02 Blinking Blinking Blinking Yes No Always OFF Always OFF Always ON Always OFF ecolink Adapter Part B. Warranty Registration via ESS Pro App Steps of warranty registration * 1.Create an ecoer account 2.Add Unit (Register a new AC/HP) With the IoT device, Ecoer Inc. provides an easy way for dealers to help their customers complete registration via ESS Pro App in just minutes. Then dealers can monitor units’ live data and perform remote field settings for the condensing unit. Working alongside the Ecoer Customer Service Team, the dealer can guarantee the installation and servicing quality. Alternatively, homeowner / dealer / builder can register at www.ecoer.com. But it will not allow the dealer to monitor the system. *Log in www.ecoer.com or ESS Pro App >Systems >Add Unit to get the newest guide. • Sign an agreement with homeowner • Scan/Input serial numbers to submit Search ECOER on App Store or Google Play now. Download or update Ecoer Smart Service Pro App free on ©2023 ECOER INC. 43671 Trade Center Place, Suite 100 Dulles, VA 20166 Tel: 703-348-2538 www.ecoer.com FCC Compliance Statement | Compliance Notice: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -Reorient or relocate the receiving antenna. -Increase the separation between the equipment and receiver. -Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -Consult the dealer or an experienced radio/TV technician for help. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference. (2) this device must accept any interference received, including interference that may cause undesired operation. RF Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. Warning:Any changes or modifications not expressly approved by Ecoer Inc. could void the user's authority to operate the equipment. FCC ID: 2BAPJ-ELO02 www.ecoer.com Log in Log in www.ecoer.com or Ecoer Smart Service (ESS) Pro App >Systems >Add Unit to get the newest guide. ecolink Adapter Quick Start

Attestation Statements (2024/3/7) TO: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046, USA RE: Attestation Statements Part 2.911(d)(7) request for (FCC ID: 2BAPJ-ELO02) (Ecoer, Inc), the undersigned, hereby authorize Ecoer, Inc to act as our designated U.S. agent for service of process, (Ecoer, Inc) accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Ecoer, Inc accepts the responsibility to act as designated U.S. agent for service of process. Applicant Information： Company Name: Ecoer, Inc Address: 43671 Trade Center Place, Suite 100 Dulles, Virginia, 20166, United States Contact Name: Shaoming Pong FRN: 0033593088 Telephone No: 13538218145 Email: [email protected] Signature [Shaoming Pong] U.S. Agent Information: Company Name: Ecoer, Inc Address: 43671 Trade Center Place, Suite 100 Dulles, Virginia, 20166, United States Contact Name: Shaoming Pong FRN: 0033593088 Telephone No: 13538218145 Email: [email protected] Signature [Shaoming Pong]

(Ecoer, Inc) (2024.3.7) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for (FCC ID: 2BAPJ-ELO02) [Ecoer, Inc] (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Sincerely, (Applicant signature) (Applicant printed name) Shaoming Pong (Ecoer, Inc) (2024.3.7) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for (FCC ID: 2BAPJ-ELO02) [Ecoer, Inc] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, (Applicant signature) (Applicant printed name) Shaoming Pong

Ecoer, Inc 2024.3.7 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen BCTC Testing Co., Ltd to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Client’s signature: Client’s name / title : Shaoming Pong / Manager Contact information / address: 43671 Trade Center Place, Suite 100 Dulles, Virginia, 20166, United States

Ecoer, Inc 2024.3.7 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR EUT NAME: Ecolink HVAC Adapter(U) Trademark: N/A MODEL: ELO02 FCC ID: 2BAPJ-ELO02 To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the - Block Diagram - Schematics - Operational Description required to be submitted with this application be permanently withheld from public review. The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Please contact me if there is any information you may need. Sincerely, Client’s signature: Client’s name / title : Shaoming Pong / Manager Contact information / address: 43671 Trade Center Place, Suite 100 Dulles, Virginia, 20166, United States

External Photos

Label & label location

Internal Photos Antenna

FCC §15.247 (i), §2.1091 – RF Exposure FCC ID: 2BAPJ-ELO02 Applied procedures / limit According to FCC §15.247(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. Limits for Occupational / Controlled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842 / f 4.89 / f (900 / f)* 6 30-300 61.4 0.163 1.0 6 300-1500 F/300 6 1500-100,000 5 6 Note: ƒ is frequency in MHz * = Power density limit is applicable at frequencies greater than 100 MHz Limits for General Population / Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 F/1500 30 1500-100,000 1.0 30 Note: f = frequency in MHz * = Plane-wave equivalent power density MPE PREDICTION Predication of MPE limit at a given distance, Equation from OET Bulletin 65, Edition 97-01 Where: S = power density P = power input to antenna G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna, R=0.2m TEST RESULTS Frequency (MHz) Tune up Produce power Maximum peak output power (dBm) Output power to antenna (mW) Antenna Gain (numeric) Power Density (S) (mW/ cm2) Limit (mW/ cm2) Result 920.9 13±1 14 25.12 1.26 (1dBi) 0.00835 0.61 Pass 908.9 13±1 14 25.12 1.26 (1dBi) 0.00630 0.61 Pass The simultaneous transmitting consideration: Two chips of the product cannot work at the same time. Conclusion: For the max result ≤ Limit, compliance with FCC's RF Exposure

Copyright ©2019, Chengdu Ziisor Technology Co., Ltd. TX900-TH-2 8WSpring Antenna s pecification 铜镀金 弯折头弹簧天线 成都致哲科技有限公司 TX900-TH-28W产品规格书 Copyright ©2019, Chengdu Ziisor Technology Co., Ltd. 第 1 页 第一章 产品简介Product introduction TX900-TH -28W 是一款铜镀金 弯折头的弹簧天线。 The TX900-TH-28W is a spring antenna with gold-plated copper bent head. 第二章 规格参数Specification 第三章 产品尺寸Product Size 基本参数 频率Frequency 868/915M 阻抗Impedance 50Ω 接口Interface 焊接sealing-in 天线增益Gain 1dBi 材质texture 铜镀金Gold-platedbrass 颜色color 黄铜本色Brass color 天线尺寸size 圈径Loop diameter： 5mm,线径wire diameter：0.8mm,总长Length：24mm 成都致哲科技有限公司 TX900-TH-28W产品规格书 Copyright ©2019, Chengdu Ziisor Technology Co., Ltd. 第 2 页 第四章 天线特性antenna performance 电压驻波比（VSWR） 史密斯圆图(Smith chart) 以上是天线在空气中的测试数据，仅供参考 成都致哲科技有限公司 TX900-TH-32Z产品规格书 Copyright ©2019, Chengdu Ziisor Technology Co., Ltd. 第 3 页 辐射方向图 radiation pattern 效率测试（EFFICIENCY） Frequency/MHZ Efficiency/% Gain/dBi 860MHz 42.18 -0.21 870MHz 43.38 0.23 880M 44.71 0.48 890MHz 46.11 0.77 900MHz 48.23 1.00 910MHz 47.43 0.79 920MHz 46.28 0.61 930MHz 45.17 0.41 以上是天线在空气中的测试数据，仅供参考 成都致哲科技有限公司 TX900-TH-28W产品规格书 Copyright ©2019, Chengdu Ziisor Technology Co., Ltd. 第 4 页 第五章 常见问题 ⚫天线频率必须和无线设备频率匹配，否则通信效果不佳； ⚫通信频率越低，波长越长，绕射性能越好； ⚫当存在直线通信障碍时，通信距离会相应的衰减； ⚫请注意天线辐射方向，天线安装方向不正确导致传输距离近； ⚫地面吸收无线电波，靠近地面测试效果较差，建议提高高度； ⚫海水具有极强的吸收无线电波能力，故海边测试效果不佳； ⚫天线附近有金属物体或置于金属壳内，信号衰减会非常严重； ⚫天线与通信设备阻抗匹配程度差会导致通信效果差。 公司全称 NAME 成都致哲科技有限公司 公司电话 NUMBER 028-61542639 官方网址 WEBSITE www.ziisor.com 商务合作 BUSINESS [email protected] 技术支持 SUPPORT [email protected] 批量采购 BATCH 马小姐 17602800813 徐先生 13547243087 公司地址 ADDRESS 四川省成都市高新西区西区大道199号模具工业园B5 淘宝企业店 SAMPLING https://ziisor.taobao.com/ 天猫旗舰店 SAMPLING https://ziisor.tmall.com/

No.：BCTC/RF-EMC-005 Page: 1 of 40 Edition：B.1 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2402690654-1E Applicant: Ecoer, Inc Product Name: Ecolink HVAC Adapter(U) Test Model: ELO02 Tested Date: 2024-02-27 to 2024-03-18 Issued Date: 2024-03-18 Report No.: BCTC2402690654-1E No.：BCTC/RF-EMC-005 Page: 2 of 40 Edition：B.1 FCC ID: 2BAPJ-ELO02 The test report is effective only with both signature and specialized stamp.This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen BCTC Testing Co., Ltd, this report can’t be reproduced except in full.The tested sample(s) and the sample information are provided by the client. Product Name: Ecolink HVAC Adapter(U) Trademark: N/A Model/Type Reference: ELO02 Prepared For: Ecoer, Inc Address: 43671 Trade Center Place, Suite 100 Dulles, Virginia, 20166, United States Manufacturer: Yiso (Guangdong) Smart Technology Co.,Ltd Address: One of 501, 5th Floor, No. 18, Xinfa Road, Rongli Community, Ronggui Street, Shunde District, Foshan City, Guangdong Province Prepared By: Shenzhen BCTC Testing Co., Ltd. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Zhancheng, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China. Sample Received Date: 2024-02-27 Sample Tested Date: 2024-02-27 to 2024-03-18 Issue Date: 2024-03-18 Report No.: BCTC2402690654-1E Test Standards: FCC Part15.247 ANSI C63.10-2013 Test Results: PASS Remark: This is LoRa radio test report. Tested by: Approved by: Shanshan. Zhang / Project Handler Zero Zhou/Reviewer Report No.: BCTC2402690654-1E No.：BCTC/RF-EMC-005 Page: 3 of 40 Edition：B.1 Table Of Content Test Report Declaration Page 1. Version .................................................................................................................. 5 2. Test Summary ....................................................................................................... 6 3. Measurement Uncertainty ..................................................................................... 7 4. Product Information And Test Setup ..................................................................... 8 4.1 Product Information ............................................................................................... 8 4.2 Test Setup Configuration ...................................................................................... 9 4.3 Support Equipment ............................................................................................... 9 4.4 Channel List ........................................................................................................ 10 4.5 Test Mode ........................................................................................................... 10 4.6 Table of parameters of text software setting ....................................................... 10 5. Test Facility And Test Instrument Used ............................................................... 11 5.1 Test Facility ......................................................................................................... 11 5.2 Test Instrument Used .......................................................................................... 11 6. Conducted Emissions .......................................................................................... 13 6.1 Block Diagram Of Test Setup .............................................................................. 13 6.2 Limit .................................................................................................................... 13 6.3 Test procedure .................................................................................................... 13 6.4 EUT Operating Conditions .................................................................................. 13 6.5 Test Result .......................................................................................................... 13 7. Radiated Emissions ............................................................................................. 14 7.1 Block Diagram Of Test Setup .............................................................................. 14 7.2 Limit .................................................................................................................... 15 7.3 Test procedure .................................................................................................... 16 7.4 EUT operating Conditions ................................................................................... 17 7.5 Test Result .......................................................................................................... 17 8. Radiated Band Emission Measurement And Restricted Bands Of Operation ..... 21 8.1 Block Diagram Of Test Setup .............................................................................. 21 8.2 Limit .................................................................................................................... 21 8.3 Test Procedure ................................................................................................... 22 8.4 EUT Operating Conditions .................................................................................. 22 8.5 Test Result .......................................................................................................... 23 9. Power Spectral Density Test ............................................................................... 27 9.1 Block Diagram Of Test Setup .............................................................................. 27 9.2 Limit .................................................................................................................... 27 9.3 Test procedure .................................................................................................... 27 9.4 EUT Operating Conditions .................................................................................. 27 9.5 Test R…

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No.：BCTC/RF-EMC-005 Page: 1 of 40 Edition：B.1 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2402690654-2E Applicant: Ecoer, Inc Product Name: Ecolink HVAC Adapter(U) Test Model: ELO02 Tested Date: 2024-02-27 to 2024-03-18 Issued Date: 2024-03-18 Report No.: BCTC2402690654-2E No.：BCTC/RF-EMC-005 Page: 2 of 40 Edition：B.1 FCC ID: 2BAPJ-ELO02 The test report is effective only with both signature and specialized stamp.This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen BCTC Testing Co., Ltd, this report can’t be reproduced except in full.The tested sample(s) and the sample information are provided by the client. Product Name: Ecolink HVAC Adapter(U) Trademark: N/A Model/Type Reference: ELO02 Prepared For: Ecoer, Inc Address: 43671 Trade Center Place, Suite 100 Dulles, Virginia, 20166, United States Manufacturer: Yiso (Guangdong) Smart Technology Co.,Ltd Address: One of 501, 5th Floor, No. 18, Xinfa Road, Rongli Community, Ronggui Street, Shunde District, Foshan City, Guangdong Province Prepared By: Shenzhen BCTC Testing Co., Ltd. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Zhancheng, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China. Sample Received Date: 2024-02-27 Sample Tested Date: 2024-02-27 to 2024-03-18 Issue Date: 2024-03-18 Report No.: BCTC2402690654-2E Test Standards: FCC Part15.247 ANSI C63.10-2013 Test Results: PASS Remark: This is LoRa radio test report. Tested by: Approved by: Shanshan. Zhang / Project Handler Zero Zhou/Reviewer Report No.: BCTC2402690654-2E No.：BCTC/RF-EMC-005 Page: 3 of 40 Edition：B.1 Table Of Content Test Report Declaration Page 1. Version .................................................................................................................. 5 2. Test Summary ....................................................................................................... 6 3. Measurement Uncertainty ..................................................................................... 7 4. Product Information And Test Setup ..................................................................... 8 4.1 Product Information ............................................................................................... 8 4.2 Test Setup Configuration ...................................................................................... 9 4.3 Support Equipment ............................................................................................... 9 4.4 Channel List ........................................................................................................ 10 4.5 Test Mode ........................................................................................................... 10 4.6 Table of parameters of text software setting ....................................................... 10 5. Test Facility And Test Instrument Used ............................................................... 11 5.1 Test Facility ......................................................................................................... 11 5.2 Test Instrument Used .......................................................................................... 11 6. Conducted Emissions .......................................................................................... 13 6.1 Block Diagram Of Test Setup .............................................................................. 13 6.2 Limit .................................................................................................................... 13 6.3 Test procedure .................................................................................................... 13 6.4 EUT Operating Conditions .................................................................................. 13 6.5 Test Result .......................................................................................................... 13 7. Radiated Emissions ............................................................................................. 14 7.1 Block Diagram Of Test Setup .............................................................................. 14 7.2 Limit .................................................................................................................... 15 7.3 Test procedure .................................................................................................... 16 7.4 EUT operating Conditions ................................................................................... 17 7.5 Test Result .......................................................................................................... 17 8. Radiated Band Emission Measurement And Restricted Bands Of Operation ..... 21 8.1 Block Diagram Of Test Setup .............................................................................. 21 8.2 Limit .................................................................................................................... 21 8.3 Test Procedure ................................................................................................... 22 8.4 EUT Operating Conditions .................................................................................. 22 8.5 Test Result .......................................................................................................... 23 9. Power Spectral Density Test ............................................................................... 27 9.1 Block Diagram Of Test Setup .............................................................................. 27 9.2 Limit .................................................................................................................... 27 9.3 Test procedure .................................................................................................... 27 9.4 EUT Operating Conditions .................................................................................. 27 9.5 Test R…

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Radiated Measurement Photos