MPE

FCC ID: 2ADHKATWINC1500

RF Exposure Info

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FCCID_3886292

MET Laboratories, Inc. Safety Certification - EMI - Telecom Environmental Simulation 914 WEST PATAPSCO AVENUE • BALTIMORE, MARYLAND 21230-3432 • PHONE (410) 354-3300 • FAX (410) 354-3313 33439 WESTERN AVENUE • UNION CITY, CALIFORNIA 94587 • PHONE (510) 489-6300 • FAX (510) 489-6372 3162 BELICK STREET • SANTA CLARA, CA 95054 • PHONE (408) 748-3585 • FAX (510) 489-6372 13501 MCCALLEN PASS • AUSTIN, TEXAS 78753 • PHONE (512) 287-2500 • FAX (512) 287-2513 May 29, 2018 Heatworks Technologies Inc 2353 Hwy 17 N Mount Pleasant, SC 29466 Dear Michael Wieckowski, Enclosed is the EMC Wireless test report for compliance testing of the Heatworks Technologies Inc, Heatworks MODEL 3 Tankless Water Heater as tested to the requirements of Title 47 of the CFR, Ch. 1 (10-1-06 ed.), Part 15 Subpart C for Intentional Radiators. Thank you for using the services of MET Laboratories, Inc. If you have any questions regarding these results or if MET can be of further service to you, please feel free to contact me. Sincerely yours, MET LABORATORIES, INC. Joel Huna Documentation Department Reference: (\Heatworks Technologies Inc\EMC98105-MPE Rev. 1) Certificates and reports shall not be reproduced except in full, without the written permission of MET Laboratories, Inc. The Nation’s First Licensed Nationally Recognized Testing Laboratory

Electromagnetic Compatibility Heatworks Technologies Inc Cover Page Heatworks MODEL 3 Tankless Water Heater CFR Title 47, Part 15.247 Electromagnetic Compatibility Criteria Test Report for the Heatworks Technologies Inc Heatworks MODEL 3 Tankless Water Heater Tested under the FCC Certification Rules contained in 15.247 Subpart C for Intentional Radiators MET Report: EMC98105-MPE Rev. 1 May 29, 2018 Prepared For: Heatworks Technologies Inc 2353 Hwy 17 N Mount Pleasant, SC 29466 Prepared By: MET Laboratories, Inc. 914 West Patapsco Avenue, Baltimore, MD 21230 MET Report: EMC98105-MPE Rev. 1 © 2018, MET Laboratories, Inc. Page ii of iv DOC-EMC702 6/18/2009

Electromagnetic Compatibility Heatworks Technologies Inc Cover Page Heatworks MODEL 3 Tankless Water Heater CFR Title 47, Part 15.247 Electromagnetic Compatibility Criteria Test Report for the Heatworks Technologies Inc Heatworks MODEL 3 Tankless Water Heater Tested under the FCC Certification Rules contained in 15.247 Subpart C for Intentional Radiators Arsalan Hasan, Project Engineer Joel Huna Electromagnetic Compatibility Lab Documentation Department Engineering Statement: The measurements shown in this report were made in accordance with the procedures indicated, and the emissions from this equipment were found to be within the limits applicable. I assume full responsibility for the accuracy and completeness of these measurements, and for the qualifications of all persons taking them. It is further stated that upon the basis of the measurements made, the equipment tested is capable of operation in accordance with the requirements of the FCC Rules Part 15.247 under normal use and maintenance. John Mason, Director, Electromagnetic Compatibility Lab MET Report: EMC98105-MPE Rev. 1 © 2018, MET Laboratories, Inc. Page iii of iv DOC-EMC702 6/18/2009

Electromagnetic Compatibility Heatworks Technologies Inc Report Status Heatworks MODEL 3 Tankless Water Heater CFR Title 47, Part 15.247 Report Status Sheet Revision Report Date Reason for Revision  May 14, 2018 Initial Issue. 1 May 29, 2018 TCB Corrections. MET Report: EMC98105-MPE Rev. 1 © 2018, MET Laboratories, Inc. Page iv of iv DOC-EMC702 6/18/2009

Electromagnetic Compatibility Heatworks Technologies Inc Executive Summary Heatworks MODEL 3 Tankless Water Heater CFR Title 47, Part 15.247 I. Executive Summary MET Report: EMC98105-MPE Rev. 1 © 2018, MET Laboratories, Inc. Page 1 of 9 DOC-EMC702 6/18/2009

Electromagnetic Compatibility Heatworks Technologies Inc Executive Summary Heatworks MODEL 3 Tankless Water Heater CFR Title 47, Part 15.247 A. Purpose of Test An EMC evaluation was performed to determine compliance of the Heatworks Technologies Inc Heatworks MODEL 3 Tankless Water Heater, with the requirements of Part 15, §15.247. All references are to the most current version of Title 47 of the Code of Federal Regulations in effect. In accordance with §2.1033, the following data is presented in support of the Certification of the Heatworks MODEL 3 Tankless Water Heater. Heatworks Technologies Inc should retain a copy of this document which should be kept on file for at least two years after the manufacturing of the Heatworks MODEL 3 Tankless Water Heater, has been permanently discontinued. B. Executive Summary The following tests were conducted on a sample of the equipment for the purpose of demonstrating compliance with Part 15, §15.247, in accordance with Heatworks Technologies Inc, purchase order number ISI.900453. All tests were conducted using measurement procedure ANSI C63.4-2014. FCC Reference Description Compliance 47 CFR Part 15.247:2005 Title 47 of the CFR, Part 15 §15.247(i) Maximum Permissible Exposure (MPE) Compliant Table 1. Executive Summary of EMC Part 15.247 ComplianceTesting MET Report: EMC98105-MPE Rev. 1 © 2018, MET Laboratories, Inc. Page 2 of 9 DOC-EMC702 6/18/2009

Electromagnetic Compatibility Heatworks Technologies Inc Equipment Configuration Heatworks MODEL 3 Tankless Water Heater CFR Title 47, Part 15.247 II. Equipment Configuration MET Report: EMC98105-MPE Rev. 1 © 2018, MET Laboratories, Inc. Page 3 of 9 DOC-EMC702 6/18/2009

Electromagnetic Compatibility Heatworks Technologies Inc Equipment Configuration Heatworks MODEL 3 Tankless Water Heater CFR Title 47, Part 15.247 A. Overview MET Laboratories, Inc. was contracted by Heatworks Technologies Inc to perform testing on the Heatworks MODEL 3 Tankless Water Heater, under Heatworks Technologies Inc’s purchase order number ISI.900453. This document describes the test setups, test methods, required test equipment, and the test limit criteria used to perform compliance testing of the Heatworks Technologies Inc, Heatworks MODEL 3 Tankless Water Heater. The results obtained relate only to the item(s) tested. Model(s) Tested: Heatworks MODEL 3 Tankless Water Heater Model(s) Covered: Heatworks MODEL 3 Tankless Water Heater EUT Primary Power: 100 to 240 VAC 50-60 Hz Specifications: Analysis: The results obtained relate only to the item(s) tested. Evaluated by: Arsalan Hasan Report Date(s): May 29, 2018 Table 2. EUT Summary Table B. References Federal Communication Commission, Code of Federal Regulations, Title 47, CFR 47, Part 15, Subpart C Part 15: General Rules and Regulations, Allocation, Assignment, and Use of Radio Frequencies Methods and Measurements of Radio-Noise Emissions from Low-Voltage ANSI C63.4:2014 Electrical And Electronic Equipment in the Range of 9 kHz to 40 GHz General Requirements for the Competence of Testing and Calibration ISO/IEC 17025:2005 Laboratories ANSI C63.10-2013 American National Standard for Testing Unlicensed Wireless Devices Table 3. References C. Test Site All testing was performed at MET Laboratories, Inc., 914 West Patapsco Avenue, Baltimore, MD 21230. All equipment used in making physical determinations is accurate and bears recent traceability to the National Institute of Standards and Technology. Radiated Emissions measurements were performed in a 3 meter semi-anechoic chamber (equivalent to an Open Area Test Site). In accordance with §2.948(a)(3), a complete site description is contained at MET Laboratories. MET Report: EMC98105-MPE Rev. 1 © 2018, MET Laboratories, Inc. Page 4 of 9 DOC-EMC702 6/18/2009

Electromagnetic Compatibility Heatworks Technologies Inc Equipment Configuration Heatworks MODEL 3 Tankless Water Heater CFR Title 47, Part 15.247 D. Description of Test Sample The Heatworks Technologies Inc Heatworks MODEL 3 Tankless Water Heater, Equipment Under Test (EUT), is a tankless electric (on demand) water heater for residential potable water systems. It can be installed for whole home use, or at distributed various points of use. The EUT will heat flowing water to a chosen temperature setpoint using electrical energy. (1) (5) UART over USB 240 VAC, 100 A (2) L1 (6) (4) Earth Ground L2 (3) Cold Water In Hot Water Out 3/4” NPT 3/4” NPT Figure 1. Block Diagram of Test Configuration E. Equipment Configuration The EUT was set up as outlined in Figure 1, Block Diagram of Test Setup. All cards, racks, etc., incorporated as part of the EUT is included in the following list. Ref. ID Slot # Name / Description Model Number Part Number Serial Number Rev. # 1 MODEL 3 Water Heater MODEL 3 Table 4. Equipment Configuration F. Support Equipment Support equipment necessary for the operation and testing of the EUT is included in the following list. *Customer Supplied Ref. ID Name / Description Manufacturer Model Number Calibration Data 6 Laptop with USB port The ‘Customer Supplied Calibration Data’ column will be marked as either not applicable, not available, or will contain the calibration date supplied by the customer. Table 5. Support Equipment MET Report: EMC98105-MPE Rev. 1 © 2018, MET Laboratories, Inc. Page 5 of 9 DOC-EMC702 6/18/2009

Electromagnetic Compatibility Heatworks Technologies Inc Equipment Configuration Heatworks MODEL 3 Tankless Water Heater CFR Title 47, Part 15.247 G. Ports and Cabling Information Length Max Shielded Port name on Cable Description or Termination Box Ref. ID Qty as tested Length ? EUT reason for no cable ID & Port Name (m) (m) (Y/N) 3 conductor, 4 awg 1 2 AC Input N THHN Flexible hose adapted to 1 3 Hot water out ¾” NPT fitting Flexible hose adapted to 1 4 Cold water in ¾” NPT fitting 5 USB Debug USB cable (Micro) 1 5 Y Table 6. Ports and Cabling Information H. Mode of Operation Normal Operation: With water flowing at a common rate (1 to 2 GPM) and a temperature set point around 100-110 F, the unit will periodically send information over WiFi and accept connections over Bluetooth LE. I. Method of Monitoring EUT Operation #1 – The unit is drawing AC current (measurable) commensurate with heating of the water. Also, data should be visible via the WiFi-cloud platform and Bluetooth LE connections should be possible. #2 – Error codes on the EUT screen, loss of visible lights on the EUT, no data from cloud platform, no BLE broadcast. J. Modifications a) Modifications to EUT No modifications were made to the EUT. b) Modifications to Test Standard No modifications were made to the test standard. K. Disposition of EUT The test sample including all support equipment submitted to the Electro-Magnetic Compatibility Lab for testing was returned to Heatworks Technologies Inc upon completion of testing. MET Report: EMC98105-MPE Rev. 1 © 2018, MET Laboratories, Inc. Page 6 of 9 DOC-EMC702 6/18/2009

Electromagnetic Compatibility Heatworks Technologies Inc Maximum Permissible Exposure Heatworks MODEL 3 Tankless Water Heater CFR Title 47, Part 15.247 Electromagnetic Compatibility Criteria for Intentional Radiators § 15.247(i) Maximum Permissible Exposure RF Exposure Requirements: §1.1307(b)(1) and §1.1307(b)(2): 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 levels in excess of the Commission’s guidelines. RF Radiation Exposure Limit: §1.1310: As specified in this section, the Maximum Permissible Exposure (MPE) Limit shall be used to evaluate the environmental impact of human exposure to radiofrequency (RF) radiation as specified in Sec. 1.1307(b), except in the case of portable devices which shall be evaluated according to the provisions of Sec. 2.1093 of this chapter. Note: Co-located transmitters are 2.4GHz BLE and 2.4GHz WiFi Equation from page 18 of OET 65, Edition 97-01 S = PG / 4R2 or R = √(PG / 4S) where, S = Power Density (mW/cm2) P = Power Input to antenna (mW) G = Antenna Gain (numeric value) R = Distance (cm) G(dBi) = 10 log G (linear) MET Report: EMC98105-MPE Rev. 1 © 2018, MET Laboratories, Inc. Page 7 of 9 DOC-EMC702 6/18/2009

Electromagnetic Compatibility Heatworks Technologies Inc Maximum Permissible Exposure Heatworks MODEL 3 Tankless Water Heater CFR Title 47, Part 15.247 Test Results: Results are based on KDB 447498 [Section 7.2]. Transmitters used in mobile device exposure conditions for simultaneous transmission operations. MPE Result for Intentional Radiators above 1500 MHz. Note: Tune Up Tolerance is [+/-] 1dB for WiFi and BLE radios. MPE Result for Intentional Radiators of Frequency Range: 300 MHZ – 1500 MHz Conducted Conducted Ant Limit at 20 Frequency Ant Gain Power Density Percentage Power Power Gain cm (MHz) (dBi) (mW/cm^2) of Limit (%) (dBm) (mW) (dBi) (mW/cm^2) 2440 (BLE) 1.38 1.374 -0.5 0.891 0.00024 1 0.024 2437 (WiFi) 23.03 200.9 -3 0.501 0.02003 1 2.003 BLE Module FCC-ID: WAP2011 2402 MHz – 2478 MHz WiFi Module FCC-ID: 2ADHKATWINC1500 2412 MHz – 2462 MHz Mode: b, g, n The BLE and WiFi radios transmit simulateously. The combined percentage is lower than the limit of 100%. The safe distance where Power Density is less than the MPE Limit listed above was found to be 20 cm. MET Report: EMC98105-MPE Rev. 1 © 2018, MET Laboratories, Inc. Page 8 of 9 DOC-EMC702 6/18/2009

Electromagnetic Compatibility Heatworks Technologies Inc End of Report Heatworks MODEL 3 Tankless Water Heater CFR Title 47, Part 15.247 End of Report MET Report: EMC98105-MPE Rev. 1 © 2018, MET Laboratories, Inc. Page 9 of 9 DOC-EMC702 6/18/2009


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Document Modified: 2019-10-12 05:54:16
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