Honeywell Heating & Cooling Appliance Controls Title: Functional description S4965V3250 Doc.: S4965V3250E20 1. Software revisions Software Description Date Description of amendments 32320902-001 C0.01_P0.02_E0.01 09-Jun-2016 Modbus protocol is used instead of MicroCom, 659B possibility to set CH HD and power fan speed via communication.
Honeywell Heating & Cooling Appliance Controls Title: Functional description S4965V3250 Doc.: S4965V3250E20 2. Reference standards and Approvals 2.1 - Standards ESYS boiler controller meets the requirements laid down in standards-documents: EN 298:2012 Automatic gas burner control systems for gas burners and gas burning appliances with or without fans;...
3. Quality assurance statement Products are manufactured under an ISO 9001 based and certified Quality System. The quality system is described in the Honeywell Combustion Controls Center Quality Assurance Program and its related operational procedures and instructions. The quality organization is responsible for defining, maintaining, improving and verification of the quality systems in the f ield of design, production process and field quality service.
Honeywell Heating & Cooling Appliance Controls Title: Functional description S4965V3250 Doc.: S4965V3250E20 4. Identification To ensure product tracking and identification: On housing label is: Bar code (or 2D code) label with production data CE-0063BR1922 printed on the label;...
5.1 - General Controller ESYS S4965V3250 is intended to be used for industrial DC-fan applications. It is made for fan assisted, direct burner ignition applications. The ESYS controller operates on 230 Volts, 50-60 Hz and can drive a gas valve and a DC-fan with PWM control input.
Honeywell Heating & Cooling Appliance Controls Title: Functional description S4965V3250 Doc.: S4965V3250E20 5.3 - Technical features 5.3.1 - Connector and connections In the diagram below the connection diagram is shown. The Minifit connector contains the high voltage (230 VAC) connections, and the Microfit connectors contain the safety extra low voltage connections.
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No lower resistance values are allowed. Fig. 3 - PWM pull up connection. Honeywell premix engine fan interface and EBM fan 4 wire interface (BG3612 – 230 VAC), do not need any external pull up resistor for PWM output signal.
Honeywell Heating & Cooling Appliance Controls Title: Functional description S4965V3250 Doc.: S4965V3250E20 5.3.2 - High Voltage Connections Connector Type of Connection Description name HIGH VOLTAGE (230 VAC) CONNECTIONS Molex Minifit High Voltage Heat Demand Alarm output – Phase Molex Minifit Molex Minifit FAN output –...
Honeywell Heating & Cooling Appliance Controls Title: Functional description S4965V3250 Doc.: S4965V3250E20 5.5 - Recommended peripheral devices Recommended valve: gas/air 1:1 VK41xxFxxxx or VK41Vxxxxx Recommended display: N/A 5.6 - System Parameters list (default settings) The controller has safety parameters and functional parameters: The safety parameters cannot be changed by the OEM or end user.
The gas valve which must be connected to the Basic ESYS controller is a CVI-m valve. An example of such a valve is the VK41xxFxxxx or VK41Vxxxxx. There are many other valves which can work together with this ESYS. For more information about gas valves, please contact the appropriate department or your local Honeywell affiliate. 5.7.6 - Alarm output Alarm output is set whenever a lockout or blocking condition occurs.
Honeywell Heating & Cooling Appliance Controls Title: Functional description S4965V3250 Doc.: S4965V3250E20 6. Modes of operation The controller has a number of basic modes of operation (from lowest to highest priority): STAND-BY, when there is no heat demand or error present;...
Honeywell Heating & Cooling Appliance Controls Title: Functional description S4965V3250 Doc.: S4965V3250E20 6.5 - Test Mode The Test Mode can be used to manually control the fan speed of the burner generated through the external communication port. If message is not received in 30 seconds again the Test Mode is cancelled.
Honeywell Heating & Cooling Appliance Controls Title: Functional description S4965V3250 Doc.: S4965V3250E20 6.6 - APS (Air Pressure Switch) function If the APS is configured by adjusting parameter the ignition is not started until the APS switch has performed an open and close sequence.
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Honeywell Heating & Cooling Appliance Controls Title: Functional description S4965V3250 Doc.: S4965V3250E20 Fig. 5 - Fan Speed control. Description Sign. E.C.N. Date Rev. First issue. I.Mariscak 0131527 27-Jun-2016 SW update and add parameter into list ModBus communication. I.Mariscak 03-Aug-2016 Page 21/33...
Honeywell Heating & Cooling Appliance Controls Title: Functional description S4965V3250 Doc.: S4965V3250E20 6.8 - Protection and error conditions Several checks are included to protect the boiler and its environment. High Limit switch is constantly monitored, safety times are constantly compared etc.
Honeywell Heating & Cooling Appliance Controls Title: Functional description S4965V3250 Doc.: S4965V3250E20 Lock-out condition codes: FAULT 1 = Lockout signal after no flame and all ignition trials are expired. This error condition is stopping the boiler and to get to the normal operation again, manual/remote reset is required. By using the local reset key, number of resets are not limited.
Honeywell Heating & Cooling Appliance Controls Title: Functional description S4965V3250 Doc.: S4965V3250E20 7. Control Panel for ESYS This version of ESYS doesn’t have its own Control Panel tool. Description Sign. E.C.N. Date Rev. First issue. I.Mariscak 0131527 27-Jun-2016 SW update and add parameter into list ModBus communication.
Honeywell Heating & Cooling Appliance Controls Title: Functional description S4965V3250 Doc.: S4965V3250E20 8. History information The controller board has a possibility to register fault codes and to write some additional history information in non -volatile memory: Error codes (buffer of the 8 last errors). Every error code has it's time information (coupled with total hours);...
This chapter contains references for further documentation of the ESYS and the CVI valves which can be used in combination with the ESYS. Title Reference Product Handbook ESYS EN2R9071 Product Handbook Valves EN2R9025 Terms used in Honeywell product handbooks EN2R9039 Description Sign. E.C.N. Date Rev. First issue.
NOTE 7: Remote reset function may only be used in applications where a maximum of five resets per 15 minutes is allowed. WARNING Honeywell is not responsible for damage and/or injury due to miss-wiring. After installation boiler control can become wet due to condensation. Do not connect wet device to mains. 10.2 - Electrical connection The device must always be connected with the power turned off.
Honeywell Heating & Cooling Appliance Controls Title: Functional description S4965V3250 Doc.: S4965V3250E20 IMPORTANT Wiring must be in accordance with local regulations. The appliance manufacturer’s instructions should always be followed when provided. If such instructions are not provided see the connection diagrams for typical systems.
Honeywell Heating & Cooling Appliance Controls Title: Functional description S4965V3250 Doc.: S4965V3250E20 10.5 - Adjustments and final checkout WARNING Adjustments must be made by qualified persons only. If the appliance manufacturer supplies checkout and/ or service and maintenance instructions carefully follow them.
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The ESYS controller is a slave in the communication. The ESYS is tested for interconnection with MVC Building controller from Honeywell via C Bus interface. Maximum of 32 devices can be connected on the bus. It means one master (MVC) and up to 31 ESYS controllers.
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Honeywell Heating & Cooling Appliance Controls Title: Functional description S4965V3250 Doc.: S4965V3250E20 Modbus communication format Modbus communication format is selected by the value in EEPROM (see Modbus Communication Format). Actually the format realized via RS485 is implemented using High byte of message ID 1536 in these ways only. The rest bits are reserved for future use.
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Honeywell Heating & Cooling Appliance Controls Title: Functional description S4965V3250 Doc.: S4965V3250E20 Register Name Type Range Notes 0x04 Burner cycles Burner cycles count 65535 0x04 Lockout errors Count of Lockout errors 65535 0x04 Burner running hours Burner running total hours...
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Honeywell Heating & Cooling Appliance Controls Title: Functional description S4965V3250 Doc.: S4965V3250E20 Register Name Type Range Notes HB: Reserved 0x03 1296 0x06 LB: Absolute Maximum Fan speed 6-255 *50 RPM HB: Reserved 0x03 1297 0x06 LB: Absolute Minimum Fan speed...