2A9E3-CST111639USB-Connect smart phone application

111680-03 - 6/23 DANGER Before making any setting changes, installing or servicing this boiler, follow all instructions including DANGER, WARNING, CAUTION, and NOTICE hazard notifications found in boiler Installation, Operating and Service Instructions provided with boiler and available through PAT-Connect app. ! Instruction Manual Need help or have a question? Contact Customer Support at (215)535-8900 Manual Contents Page • Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 • App Download . . . . . . . . . . . . . . . . . . . . . . . . . .4 • Connecting Bluetooth Adaptor . . . . . . . . . . . .5 • App Connection . . . . . . . . . . . . . . . . . . . . . . . . .7 Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 • On Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 • Remote Support . . . . . . . . . . . . . . . . . . . . . . . .9 Commissioning/Setup . . . . . . . . . . . . . . . . . . . . . . .10 • Startup Wizard . . . . . . . . . . . . . . . . . . . . . . . . .10 • Adjust Menus . . . . . . . . . . . . . . . . . . . . . . . . . .11 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 • Troubleshooting Wizard . . . . . . . . . . . . . . . . .12 • Alarm Menus . . . . . . . . . . . . . . . . . . . . . . . . . .13 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 • Service Wizard . . . . . . . . . . . . . . . . . . . . . . . . .14 Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 • Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Bluetooth Adaptor Update . . . . . . . . . . . . . . . . . . .16 Phantom Control Updates . . . . . . . . . . . . . . . . . . .17 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 • Specifications . . . . . . . . . . . . . . . . . . . . . . . . .18 • Repair Parts . . . . . . . . . . . . . . . . . . . . . . . . . . .19 • Troubleshooting Tips . . . . . . . . . . . . . . . . . .20 NOTICE: Only use the Bluetooth Adaptor while on site. Never leave the Bluetooth Adaptor on site and connected to boiler. 2111680-03 - 6/23 Introduction PAT-Connect is a commissioning, diagnostic and service tool consisting of a Bluetooth Adaptor and mobile device app. The app communicates with any Velocity Boiler Works condensing boiler. PAT-Connect is a local service tool with portal data collection and live streaming to enable remote support. Included with the Bluetooth Adaptor: PAT-Connect Bluetooth Adaptor Cable 1, RJ12 Straight Cable, 36-inch, Silver For Phantom II Boiler Cable 2, RJ45 Split Cable, 24-inch, Black For Sage Controller Equipped Boiler Cable 3, RJ45 Straight Cable, 36-inch, Blue For Direct Connection to Sage Controller 111640-01, Sage J3 Terminals to RJ45 Interface Board, For Direct Connection to Sage Controller Compatible Devices: Apple device, an iPhone or iPad, running iOS version 13 or newer. Android device, mobile phone or tablet, running Android version 10 or newer. Compatible Boilers: Phantom, Phantom II, Phantom Combi, Phantom-X, Raptor, Raptor Combi Shadow. 3111680-03 - 6/23 Introduction (continued) PAT-Connect Features: • Bluetooth Adaptor connects boiler to PAT- Connect App. • English and Spanish Language. • Start-up, Troubleshoot and Service Wizards. • Data logs, Service & status reports sent to cloud. • Phantom Boiler Control firmware updates. Portal Features: • Stores reports, data logs, site photos and alarm history. • Real-time remote monitoring when signal available. 4111680-03 - 6/23 Getting Started Step 1: Install App IOS Android Go to App store Go to Play store Download PAT-Connect Download PAT-Connect Step 2: Create User Account Fill out profile and review and accept Terms and Conditions, Privacy Policy: Existing User select Sign In: 5111680-03 - 6/23 Direct to Controller (req . Phantom Combi) CABLE 3 RJ45 Straight Cable, 36-inch, Blue, plus Sage J3 Terminals to RJ45 Interface Board 111640-01, For Direct Connection to Sage Controller Getting Started (continued) Step 3: Connect Bluetooth Adaptor Phantom models (all) CABLE 1 RJ12 Straight Cable, 36-inch, Silver For Phantom II Boiler Phantom, Phantom X, Raptor and Raptor X CABLE 2 RJ45 Split Cable, 111662-01 24-inch, Black For Sage Controller Equipped Boiler 6111680-03 - 6/23 Getting Started (continued) Step 4: Using App Launch App Before opening the App, connect Bluetooth Adaptor and wait for LED light to turn solid green. Demo Mode When not near a boiler or Bluetooth Adaptor a user may view an Phantom Boiler Demonstrator Mode to review available options, manuals, and alarm descriptions If having trouble connecting, see Appendix, Specification for Bluetooth Adaptor LED blink codes and Troubleshooting Tips. 7111680-03 - 6/23 Step 5: Sign into PAT-Connect Web Portal After you have completed your profile using the PAT-Connect App, Velocity Boiler Works customer service will send you an invitation to sign into the web portal where you can view status, service reports and live data when a cell signal is available. If you do not receive an invitation email, call customer service at (215)535-8900 Getting Started (continued) Web Portal pat .velocityboilerworks .com 8111680-03 - 6/23 Monitoring On Site Home screen provides water temperatures supplied to and returning from heating elements and faucets. At a glance the user is aware of the current demands and burner status. Additional information is available from Main Data, Controller Status, Input/Output Status, as well as Zone Panel Status and Sequencer Status when used. 9111680-03 - 6/23 Monitoring (continued) Remote Support App offers reports, site photos and data logging to document boiler performance and aid remote support. Reports, site photos, and logs may be email and/or stored on devices as pdf or csv files. All files are archived at portal. Status Report Current boiler status, “snapshot”. Se…

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111679-03 - 6/23 DANGER Before making any setting changes, installing or servicing this boiler, follow all instructions including DANGER, WARNING, CAUTION, and NOTICE hazard notifications found in boiler Installation, Operating and Service Instructions provided with boiler and available through USB Connect app. ! Instruction Manual Need help or have a question? Contact Customer Support at (717) 397-4705 Manual Contents Page • Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 • App Download . . . . . . . . . . . . . . . . . . . . . . . . . .4 • Connecting Bluetooth Adaptor . . . . . . . . . . . .5 • App Connection . . . . . . . . . . . . . . . . . . . . . . . . .7 Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 • On Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 • Remote Support . . . . . . . . . . . . . . . . . . . . . . . .9 Commissioning/Setup . . . . . . . . . . . . . . . . . . . . . . .10 • Startup Wizard . . . . . . . . . . . . . . . . . . . . . . . . .10 • Adjust Menus . . . . . . . . . . . . . . . . . . . . . . . . . .11 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 • Troubleshooting Wizard . . . . . . . . . . . . . . . . .12 • Alarm Menus . . . . . . . . . . . . . . . . . . . . . . . . . .13 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 • Service Wizard . . . . . . . . . . . . . . . . . . . . . . . . .14 Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 • Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Bluetooth Adaptor Update . . . . . . . . . . . . . . . . . . .16 Alta Control Updates . . . . . . . . . . . . . . . . . . . . . . . .17 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 • Specifications . . . . . . . . . . . . . . . . . . . . . . . . .18 • Repair Parts . . . . . . . . . . . . . . . . . . . . . . . . . . .19 • Troubleshooting Tips . . . . . . . . . . . . . . . . . .20 NOTICE: Only use the Bluetooth Adaptor while on site. Never leave the Bluetooth Adaptor on site and connected to boiler. 2111679-03 - 6/23 Introduction USB-Connect is a commissioning, diagnostic and service tool consisting of a Bluetooth Adaptor and mobile device app. The app communicates with any U.S. Boiler condensing boiler. USB-Connect is a local service tool with portal data collection and live streaming to enable remote support. Included with the Bluetooth Adaptor: USB-Connect Bluetooth Adaptor Cable 1, RJ12 Straight Cable, 36-inch, Silver For Alta Boiler Cable 2, RJ45 Split Cable, 24-inch, Black For Sage Controller Equipped Boiler Cable 3, RJ45 Straight Cable, 36-inch, Blue For Direct Connection to Sage Controller 111640-01, Sage J3 Terminals to RJ45 Interface Board, For Direct Connection to Sage Controller Compatible Devices: Apple device, an iPhone or iPad, running iOS version 13 or newer. Android device, mobile phone or tablet, running Android version 10 or newer. Compatible Boilers: Alpine, Alta, AltaC, Aspen, AspenC, K2WT, K2WTC, K2FT, XC. 3111679-03 - 6/23 Introduction (continued) USB-Connect Features: • Bluetooth Adaptor connects boiler to USB- Connect App. • English and Spanish Language. • Start-up, Troubleshoot and Service Wizards. • Data logs, Service & status reports sent to cloud. • Alta Boiler Control firmware updates. Portal Features: • Stores reports, data logs, site photos and alarm history. • Real-time remote monitoring when signal available. USB-Connect Bluetooth Adaptor Cellular or Wi-Fi Connection (When Available) Secure AWS Server US Boiler Modulating Condensing Boiler Remote Monitoring And Support 4111679-03 - 6/23 Getting Started Step 1: Install App IOSAndroid Go to App storeGo to Play store Download USB-Connect Download USB-Connect Step 2: Create User Account Fill out profile and review and accept Terms and Conditions, Privacy Policy: Existing User select Sign In: 5111679-03 - 6/23 Direct to Sage Controller (req . K2WT, XC) CABLE 3 RJ45 Straight Cable, 36-inch, Blue, plus Sage J3 Terminals to RJ45 Interface Board 111640-01, For Direct Connection to Sage Controller Getting Started (continued) Step 3: Connect Bluetooth Adaptor Alta models (all) CABLE 1 RJ12 Straight Cable, 36-inch, Silver For Alta Boiler Alpine (shown), Aspen & K2 (+K2FT) CABLE 2 RJ45 Split Cable, 111662-01 24-inch, Black For Sage Controller Equipped Boiler 6111679-03 - 6/23 Getting Started (continued) Step 4: Using App Launch App Before opening the App, connect Bluetooth Adaptor and wait for LED light to turn solid green. Demo Mode When not near a boiler or Bluetooth Adaptor a user may view an Alta Boiler Demonstrator Mode to review available options, manuals, and alarm descriptions. If having trouble connecting, see Appendix, Specification for Bluetooth Adaptor LED blink codes and Troubleshooting Tips. 7111679-03 - 6/23 Step 5: Sign into USB-Connect Web Portal After you have completed your profile using the USB-Connect App, U.S. Boiler customer service will send you an invitation to sign into the web portal where you can view status, service reports and live data when a cell signal is available. If you do not receive an invitation email, call customer service at (717) 397-4701. Getting Started (continued) Web Portal usbconnect .usboiler .net 8111679-03 - 6/23 Monitoring On Site Home screen provides water temperatures supplied to and returning from heating elements and faucets. At a glance the user is aware of the current demands and burner status. Additional information is available from Main Data, Controller Status, Input/Output Status, as well as Zone Panel Status and Sequencer Status when used. 9111679-03 - 6/23 Monitoring (continued) Remote Support App offers reports, site photos and data logging to document boiler performance and aid remote support. Reports, site photos, and logs may be email and/or stored on devices a…

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111681-01 - 6/23 DANGER Before making any setting changes, installing or servicing this boiler, follow all instructions including DANGER, WARNING, CAUTION, and NOTICE hazard notifications found in boiler Installation, Operating and Service Instructions provided with boiler and available through NYB Connect app. ! Instruction Manual Need help or have a question? Contact Customer Support at (215) 855-8055 Manual Contents Page • Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 • App Download . . . . . . . . . . . . . . . . . . . . . . . . . .4 • Connecting Bluetooth Adaptor . . . . . . . . . . . .5 • App Connection . . . . . . . . . . . . . . . . . . . . . . . . .7 Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 • On Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 • Remote Support . . . . . . . . . . . . . . . . . . . . . . . .9 Commissioning/Setup . . . . . . . . . . . . . . . . . . . . . . .10 • Startup Wizard . . . . . . . . . . . . . . . . . . . . . . . . .10 • Adjust Menus . . . . . . . . . . . . . . . . . . . . . . . . . .11 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 • Troubleshooting Wizard . . . . . . . . . . . . . . . . .12 • Alarm Menus . . . . . . . . . . . . . . . . . . . . . . . . . .13 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 • Service Wizard . . . . . . . . . . . . . . . . . . . . . . . . .14 Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 • Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Bluetooth Adaptor Update . . . . . . . . . . . . . . . . . . .16 GHE II Control Updates . . . . . . . . . . . . . . . . . . . . . .17 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 • Specifications . . . . . . . . . . . . . . . . . . . . . . . . .18 • Repair Parts . . . . . . . . . . . . . . . . . . . . . . . . . . .19 • Troubleshooting Tips . . . . . . . . . . . . . . . . . .20 NOTICE: Only use the Bluetooth Adaptor while on site. Never leave the Bluetooth Adaptor on site and connected to boiler. YORKER NEW NEW YORKER YOUR BOILER COMPANY Connect NYB BLUETOOTH ADAPTOR 2111681-01 - 6/23 Introduction NYB-Connect is a commissioning, diagnostic and service tool consisting of a Bluetooth Adaptor and mobile device app. The app communicates with any New Yorker Boiler condensing boiler. NYB-Connect is a local service tool with portal data collection and live streaming to enable remote support. Included with the Bluetooth Adaptor: NYB-Connect Bluetooth Adaptor Cable 1, RJ12 Straight Cable, 36-inch, Silver For GHE II Boiler Compatible Devices: Apple device, an iPhone or iPad, running iOS version 13 or newer. Android device, mobile phone or tablet, running Android version 10 or newer. Compatible Boilers: GHE II. 3111681-01 - 6/23 Introduction (continued) NYB-Connect Features: • Bluetooth Adaptor connects boiler to NYB- Connect App. • English and Spanish Language. • Start-up, Troubleshoot and Service Wizards. • Data logs, Service & status reports sent to cloud. • GHE II Boiler Control firmware updates. Portal Features: • Stores reports, data logs, site photos and alarm history. • Real-time remote monitoring when signal available. NYB-Connect Bluetooth Adaptor Cellular or Wi-Fi Connection (When Available) Secure AWS Server NY Boiler Modulating Condensing Boiler Remote Monitoring And Support 4111681-01 - 6/23 Getting Started Step 1: Install App IOSAndroid Go to App storeGo to Play store Download NYB-Connect Download NYB-Connect Step 2: Create User Account Fill out profile and review and accept Terms and Conditions, Privacy Policy: Existing User select Sign In: 5111681-01 - 6/23 Getting Started (continued) Step 3: Connect Bluetooth Adaptor GHEBII models (all) CABLE 1 RJ12 Straight Cable, 36-inch, Silver For GHE II Boiler 6111681-01 - 6/23 Getting Started (continued) Step 4: Using App Launch App Before opening the App, connect Bluetooth Adaptor and wait for LED light to turn solid green. Demo Mode When not near a boiler or Bluetooth Adaptor a user may view an GHE II Boiler Demonstrator Mode to review available options, manuals, and alarm descriptions. If having trouble connecting, see Appendix, Specification for Bluetooth Adaptor LED blink codes and Troubleshooting Tips. 7111681-01 - 6/23 Step 5: Sign into NYB-Connect Web Portal After you have completed your profile using the NYB-Connect App, New Yorker Boiler customer service will send you an invitation to sign into the web portal where you can view status, service reports and live data when a cell signal is available. If you do not receive an invitation email, call customer service at (717) 397-4701. Getting Started (continued) Web Portal 8111681-01 - 6/23 Monitoring On Site Home screen provides water temperatures supplied to and returning from heating elements and faucets. At a glance the user is aware of the current demands and burner status. Additional information is available from Main Data, Controller Status, Input/Output Status, as well as Zone Panel Status and Sequencer Status when used. 9111681-01 - 6/23 Monitoring (continued) Remote Support App offers reports, site photos and data logging to document boiler performance and aid remote support. Reports, site photos, and logs may be email and/or stored on devices as pdf or csv files. All files are archived at portal. Status Report Current boiler status, “snapshot”. Service Report Status, cycle & alarm history and actions taken. Data Logging Data is sorted while Bluetooth adaptor is connected. 10111681-01 - 6/23 Commissioning/Setup Start Up Wizard is provided to walk users through most common setup tasks. Start-up Wizard collects instructions, status, and key parameter adjustment together to allow required actions to be as easy and successful as possible. 11111681-01 - 6/23 Commissioning/Setup (continued) …

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June 15, 2023 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 2A9E3-CST111639) Burnham Holdings Engineering Company, LLC, the undersigned, hereby authorize Burnham Holdings Engineering Company, LLC to act as our designated U.S. agent for service of process, Burnham Holdings Engineering Company, LLC 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. Burnham Holdings Engineering Company, LLC accepts the responsibility to act as designated U.S. agent for service of process, provides 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. Applicant Information： FCC Registration Number (FRN): 0033095340 Company name: Burnham Holdings Engineering Company, LLC Contact Name: Peter Cloonan Address: 2930 Old Tree Drive, Lancaster, PA, 17603 Telephone No: 7172394489 Email: [email protected] U.S. Agent Information: Company name: Burnham Holdings Engineering Company, LLC Contact Name: Peter Cloonan Address: 2930 Old Tree Drive, Lancaster, PA, 17603 Telephone No: 7172394489 Email: [email protected] Applicant Signature: Agent Signature: (if the agent is different from the applicant) Applicant printed name: Agent printed name: Peter Cloonan

Wednesday, June 14, 2023 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 2A9E3-CST111639 Burnham Holdings Engineering Company, LLC, (“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, Peter Cloonan Wednesday, June 14, 2023 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 2A9E3-CST111639 Burnham Holdings Engineering Company, LLC, (“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, Peter Cloonan

1 1 2 2 3 3 4 4 5 5 6 6 DD CC BB AA APPROVALS PROJ ENGR DRAFTER DATE SIZE TITLE DWG. NO.REV 6/14/202312:01:03 PM SCALE: B SHEET Blocky.SchDoc Block Diagram FILENAME: OF KAR46 E2 NONE 6 1 Approved By Pavel 6/14/2023 THIS DOCUMENT CONTAINS PROPRIETARY AND CONFIDENTIAL INFORMATION THAT IS NOT TO BE PHYSICALLY REPRODUCED OR INTELLECTUALLY TRANSFERRED WITHOUT WRITTEN PERMISSION FROM SEMCO. NOTES: UNLESS OTHERWISE SPECIFIED ApprovDate CST NRF52832 32.768kHz 32MHz Matching PCB Trace Antenna RAM SPI UART to RS485 UART I2C to UART I2C External Connectors 48MHz LEDs ESP8266 X1 32MHz Matching PCB Trace Antenna RAM SPI J4 U.FL Switching Supply 3V3 8 to 50 Vdc

Bluetooth Adaptor Photos Burnham Holdings Engineering Company May 12, 2023

Back Label Design By: Peter Cloonan Date: 6/19/23 Drawing: 111663-01 Art File Each brand has a different part number placed on it. Back labels are printed to allow serialization of the serial number. Serial Number: xx: Year yy: Week zzzzz: 0-10,000 USB-Connect: PAT-Connect: NYB-Connect: PN: 111667-01 SN:xxyyzzzzz FCC ID 2A9E3-CST111639 IC: 29954-11166401 HVIN: E2 PMN: USB-Connect PN: 111668-01 SN:xxyyzzzzz FCC ID 2A9E3-CST111639 IC: 29954-11166401 HVIN: E2 PMN: PAT-Connect PN: 111669-01 SN:xxyyzzzzz FCC ID 2A9E3-CST111639 IC: 29954-11166401 HVIN: E2 PMN: NYB-Connect

Monday, June 19, 2023 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Label Differences We are request certification of Product Marketing Name (PMN): USB-Connect, PAT-Connect, and NYB-Connect. We maintain these three different Apps and Bluetooth Adaptors to show the product branded to different sales channels, US Boiler Company, Velocity Boiler Works and New Yorker Boiler. The labels identify hardware and model on the back label: Front Labels Back Label USB-Connect: PAT-Connect: NYB-Connect: PN: 111667-01 SN: xxyyzzzzz FCC ID 2A9E3-CST111639 IC: 29954-11166401 HVIN: E2 PMN: USB-Connect PN: 111668-01 SN:xxyyzzzzz FCC ID 2A9E3-CST111639 IC: 29954-11166401 HVIN: E2 PMN: PAT-Connect PN: 111669-01 SN:xxyyzzzzz FCC ID 2A9E3-CST111639 IC: 29954-11166401 HVIN: E2 PMN: NYB-Connect Sincerely, Peter Cloonan Burnham Holdings Engineering Company, LLC ISED Company Number 29954 2930 Old Tree Drive Lancaster, PA 17603

31.20.1 45.7 0.1 R2 Notes: 1. Material shall be 2 mil white polyester stock with 2 mil liner, 1 mil clear cap and 2 mil Flexmount L-778/V-778 permanent adhesive. 2. Adhesive system must be qualitifed in accordance with UL969 for -20 F to 212F service temp range, use indoors, high humidity or occasional exposure to water. 3. Contact U.S. Boiler Company, Inc. Engineering Department for artwork file, 111663-01(ART).PDF. REVISIONS REV.ENDATEDESCRIPTIONDWNCHKAPVD AMB-2402-14971PRODUCTION RELEASE.FOB AA BB 2 2 1 1 TITLE: FIRST USE: ITEM NUMBER: MATERIAL: 111663-01 USBC, PAT, NYB CONNECTED SERVICE TOOL BACK LABEL DES: FOB CHK: APVD: SCALE: 2:1 SIZE: A SHEET: 1 OF 1 DATE:REVISION: DRAWING NUMBER: 111663-01 A UNLESS OTHERWISE NOTED: ALL DIMENSIONS IN MILLIMETERS. TOLERANCES: X ±1 X.X ±.5 ANGLE ±1° PROPERTY OF U.S. Boiler Company, Inc. LANCASTER, PA THIS DOCUMENT CONTAINS CONFIDENTIAL INFORMATION AND ITS CONTENTS ARE THE SOLE PROPERTY OF U.S. BOILER COMPANY, INC. ANY REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF U.S. BOILER COMPANY, INC. IS STRICTLY PROHIBITED. THIRD ANGLE PROJECTION

Bluetooth Adaptor Photos Burnham Holdings Engineering Company May 12, 2023 Pencil pointing to Bluetooth Adaptor Antenna location. Bluetooth Adaptor Photos Burnham Holdings Engineering Company May 12, 2023

USB-Connect Operating Description Date: June 29, 2023 Company name: Burnham Holdings Engineering Company, LLC Contact Name: Peter Cloonan Overview The Connected Service Tool (CST) is a device intended for use by qualified technicians to monitor, troubleshoot, and upgrade water boilers distributed by US Boiler. Capable of communicating either over BLE, the device can pair with a mobile phone app to relay information both directly to the technician and to the cloud using the phones cellular connection. Theory of Operation - Functional components of the device include: a single-board computer with integrated BLE radio. - Depending on the boiler type the CST is to be connected to, the device will either draw power from the boiler itself via either an RJ12 or RJ45 connection, as the boilers are capable of supplying 24V AC, or 24V DC on these interfaces depending on the model. - The CST use case: The device is used as a BLE service tool, in which case the device is connected to a boiler and communicates information about the boiler to the user’s phone for visualization within an application. The device may be left attached to the boiler to collect data over a long period of time. Figure 1 Page 1 of 2 Antenna and Grounding The USB-Connect Connected Service Tool utilizes a Nordic nRF52832 semiconductor to manage Bluetooth communication. The antenna is connected to the chip at the ANT connection. Antenna is a board trace that is integral with the board. No external antenna is used. Chip is installed on a grounding pad that is connected to terminal VSS. Terminal VSS is connected to ground. When device is in use, USB-Connect ground is connected to boiler’s earth ground. Refer to figure 1 for more information. Specifications: Bluetooth frequency band: v4.0, 2400 to 2483 MHz. Modulation type: GFSK, Data Rate Speed: 1 Mbps, Antenna Type: trace drawn on the PCB Crystal Frequency: 32 MHz Antenna Gain: See Table A below. Frequency [MHz] Antenna Efficiency [%] Antenna Peak Gain [dBi] 2400 14.0 -2.0 2405 13.7 -2.1 2410 13.8 -2.2 2415 13.6 -2.5 2420 13.0 -2.7 2425 13.3 -2.9 2430 13.3 -2.7 2435 13.9 -2.7 2440 13.8 -3.0 2445 13.3 -3.3 2450 13.6 -3.5 2455 13.1 -3.7 2460 12.9 -4.0 2465 13.0 -4.2 2470 12.0 -4.5 2475 12.2 -4.5 2480 11.5 -4.7 2485 11.1 -4.9 2490 11.2 -4.6 2495 10.8 -4.8 2500 11.0 -4.6 Page 2 of 2 Table A Antenna Gain

CommentDesignator 22uFC1, C2, C6 10nFC3, C51 10uFC4, C5 100nFC7 100pFC8, C22 100nFC9, C17, C21, C27 22nFC10 10uFC11, C35, C50 18pFC12, C46 470nFC13 1.0μFC14 12pFC15, C19 9pFC16, C20 4.7μFC18 0.8pFC24 1.2pFC26, C40 100nFC28, C29, C30, C34, C36, C37, C44, C45 1uFC31, C32 2.4pFC38 3.0pFC39 4.7pFC42, C43 1N4448WS-7-FD1, D2, D3, D8 ESDAVLC8-1BM2D4, D5 SM712D6 SS16D7 0680L0375-05F1, F2, F3 125mA-30VF4, F5 JackJ1 0955016890J2 0955016669J3 U.FLJ4 68uH, 2.4AL1 15nHL2 10μHL3 3.9nHL4 120R@100MHzL5 2.2nHL6 LD1 Header 4P1, P2 Header 2P3 26MHzQ1 48 MHzQ2 2k4R1 100kR2 10kR3, R15, R17, R18, R19, R20, R21, R22, R23, R28, R29, R31, R32, R33 100R4, R5 22R7, R12 270R8 0RR16 CommentDesignator 0R10 12kR24 200R26 499RR27 330R34, R38 10R35, R37 120RR36 7k5R45 0R360R46 BSS138LT1GT1, T2, T3, T4 LM34910CSD/NOPBU1 nRF52832-QFAAU2 ESP8266EXU3 W25Q32JVZPIQU4, U5 MAX13487EU6 SC16IS740IPWU7 32MHzX1 32.768kHzX2 FootprintManufacturerPart Number CAPAE830X620NUnited Chemi-ConEMVA630ADA220MF80G CAPC1608X87NMurataGCM188R72A103KA37D CAPC3225X280NMurataGRM32ER71J106MA12L CAPC2012X135NTDK CorporationC2012X7R2A104K125AA CAPC1005X04LYageoCC0402JRNPO9BN101 CAPC1005X04LSamsung Electro-MechanicsCL05B104KO5NNWC CAPC1005X55NSamsungCL05B223KB5VPNC CAPC1608X80NMurata ElectronicsGRM188R61C106MAALD CAPC1005X04LYageoCC0402JRNPO9BN180 CAPC1005X55NMurata ElectronicsGRM155R61C474KE01D CAPC1608X06LSamsung Electro-MechanicsCL10B105KO8NFNC CAPC1005X04LYageoCC0402JRNPO9BN120 CAPC1005X04LYageoCC0402BRNP09BN9R0 CAPC1608X06LTDK CorporationC1608X5R1C475M080AC CAPC1005X04LMurataGJM1555C1HR80BB01D CAP-0402_MDNMurata Electronics North America, Murata ElectronicsGJM1555C1H1R2BB01D CAPC1005X55NSamsung Electro-MechanicsCL05B104KO5VPNC CAPC1005X55NSamsung Electro-MechanicsCL05A105MO5NNNC CAPC1005X55NMurata ElectronicsGJM1555C1H2R4CB01D CAPC1005X55NMurata ElectronicsGJM1555C1H3R0CB01D CAPC1005X55NSamsungCL05C4R7CB51PNC SOD2512X110NDIODES INCORPORATED1N4448WS-7-F SODFL90X40-2NSTMicroelectronicsESDAVLC8-1BM2 SOT95P237X112-3NSEMTECHSM712 DIOM5127X229NVISHAY GENERAL SEMICONDUCTORSS16-E3/61T FUSC6125X279NBel Fuse Inc.0680L0375-05 FUSR_LITTELFUSE_1206L012LITTELFUSE1206L012 LUMBERG_161314LUMBERG161314 MOLEX_0955016890Molex0955016890 MOLEX_0955016669Molex0955016669 HIROSE_U.FL-R-SMT-1(10)HIROSE (HRS)U.FL-R-SMT-1(10) INDP125125X68NTDKSLF12565T-680M2R0-PF INDC1005X04LTaiyo YudenHK100515NJ-T INDC1608X06LTaiyo YudenLBMF1608T100K INDC1005X04LJohanson Technology Inc.L-07C3N9SV6T INDC1608X95NMURATABLM18PG121SN1D INDC1005X04LJohanson Technology Inc.L-07C2N2SV6T NTE30154NTE Electronics, IncNTE30154 HDR1X4Adam TechPH1-04-UA HDR1X2Adam TechPH1-02-UA XTAL_EPSON_TSX-3225Abracon LLCABM8W-26.0000MHZ-4-D1X-T3 XTAL_EPSON_TSX-3225Abracon LLCABM8AIG-48.000MHZ-4Z-T RESC1005X40NYAGEORC0402FR-072K4L RESC1005X40NYAGEORC0402FR-07100KL RESC1005X40NSamsung Electro-MechanicsRC1005F103CS RESC1005X40NYageoRT0402FRE07100RL RESC1005X40NSamsung Electro-MechanicsRC1005F220CS RESC1005X40NYageoRC0402JR-07270RL RES-0402_MDNYageoRC0402JR-070RL FootprintManufacturerPart Number RESC1005X40NSamsung Electro-MechanicsRC1005J000CS RESC1005X40NSamsung Electro-MechanicsRC1005F123CS RESC1005X40NSamsung Electro-MechanicsRC1005F201CS RESC1005X40NSamsung Electro-MechanicsRC1005F4990CS RESC1005X40NSamsung Electro-MechanicsRC1005F331CS RESC1005X40NSamsung Electro-MechanicsRC1005F100CS RESC3225X70NYageoAC1210FR-07120RL RESC1005X40NYAGEORC0402FR-077K5L RESC1005X40NPanasonicERJ-2BQFR36X SOT95P240X110-3NDIODES INCORPORATEDBSS138Q-7-F SDC10ATexas InstrumentsLM34910CSD/NOPB QFN40P600X600X90-48NNordic SemiconductornRF52832-QFAA QFN50P500X500X80-33NEsp…

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