Myson iVector S2 User Manual (English)

Questions and Answers:

R
Richard HillAug 7, 2025
What to do if my Myson Heater leaks water only during the cooling function?
- G
  Gary SanchezAug 7, 2025
  If your Myson Heater leaks water only during cooling, there are several potential causes: * The condensate tray might be blocked. To resolve this, slowly pour a bottle of water into the low part of the heat exchanger to check the drainage. If necessary, clean the tray and/or increase the inclination of the drainage pipe. * The connection pipes and the valve unit may not be insulated well. Check the insulation of the pipes. * The fan may be fouling adjacent parts. Check if the filters are clogged and clean if necessary. * The fan might be unbalanced, causing excessive vibrations. In this case, replace the fan.
S
Steven FrederickAug 15, 2025
What to do if my Myson Heater fan does not activate even if there is hot or cold water in the hydraulic circuit?
- M
  Michael NguyenAug 15, 2025
  If the fan in your Myson Heater isn't activating despite hot or cold water in the hydraulic circuit, consider these possibilities: * The hydraulic valve may be closed. Remove the valve actuator and check if water circulation is restored. Test the valve actuator by powering it from a separate 230V (120V Canada/ US) source. If it activates, then check the electronic control. * The fan motor could be blocked or burnt out. If so, replace the motor. * The micro-switch that stops the fan when the filter grille is opened might not be closing correctly. Ensure the grille is fitted correctly and that the micro-switch contact is activated. * The electrical connections may be incorrect. Verify and correct the electrical connections.
A
Ashley PerezAug 21, 2025
What to do if my Myson iVector S2 leaks water during the heating function?
- S
  Samantha NelsonAug 21, 2025
  If your Myson Heater leaks water during heating, check for the following: * Leaks in the hydraulic connections of the system. Check the leak and fully tighten the connections. * Leaks in the valve unit. Check the condition of the gaskets.
M
Michelle HarrisAug 29, 2025
Why is condensation forming on the front panel of my Myson iVector S2 Heater?
- A
  Amanda ForbesAug 29, 2025
  Condensation on the front panel of your Myson Heater may be due to damaged or detached front panel insulation. Check the correct positioning of the thermo-acoustic insulation, paying attention to insulation in the front above the heat exchanger.

Myson iVector S2 Specifications

General

Brand	Myson
Model	iVector S2
Category	Heater
Language	English

Summary

Installation Manual Overview

Product Conformity

States compliance with North American Standards like UL1995.

Safety Symbols and Pictograms

Explains symbols for warnings, voltages, heavy items, hot surfaces, and earth.

Safety and General Information

General Safety Precautions

Outlines crucial safety rules for installation, usage, and maintenance.

General Information and Product Details

General Installation Guidelines

Covers unpacking, installation considerations, and system isolation for periods of non-use.

Product Range Overview

Describes available VS and VSI models and their mounting options.

Technical Specifications

Provides detailed technical data for 2-pipe models, including lengths, water content, and power.

Technical Data and Dimensions

4-Pipe Model Specifications

Details technical data for 4-pipe VS and VSI models, dimensions, and connections.

2-Pipe VS Model Dimensions

Illustrates dimensional drawings for 2-pipe VS models with specific measurements.

Dimensional Drawings

4-Pipe VS and VSI Model Dimensions

Provides detailed dimensional drawings for 4-pipe VS and VSI models.

Installation: Unit Placement and Clearances

Unit Positioning Guidelines

Specifies where not to install the unit and conditions for correct placement.

Minimum Installation Clearances

Shows required clearances around the unit for proper installation and airflow.

Installation: Vertical Mounting

Accessing Unit Side Panels

Instructions for opening side panels for access to components.

Vertical Floor or Wall Installation

Details the process for mounting the unit vertically on floors or walls using brackets.

Installation: Horizontal/Ceiling and Grille Safety

Horizontal or Ceiling Installation

Guides for mounting the unit horizontally on ceilings or walls.

Front Grille Safety Support (VS)

Explains how to attach a safety support to the front grille for VS models.

Installation: Air Intake and Water Connections

Securing the Air Intake Grille

Instructions on how to fix the air intake grille to prevent safety alarms.

Water Connection Requirements

Details minimum pipeline diameters and insulation for water connections.

Installation: Condensate Discharge

Condensate Discharge Pipe Sizing and Routing

Specifies pipe sizing, inclination, and routing for condensate discharge.

Condensate Discharge Connections

Illustrates connections for vertical and horizontal units, including tray and pipe setup.

Installation: System Filling and Venting

System Filling and Venting Procedure

Step-by-step guide for filling and venting the heating/cooling system.

Valve Actuator Commissioning

Instructions for removing the safety clip from the valve actuator before system startup.

Installation and Maintenance

Electrical Connection Requirements

Details mandatory requirements for electrical connections by qualified electricians.

Routine Maintenance Overview

Emphasizes the importance of routine maintenance for safe operation.

Cleaning the Outer Casing

Provides instructions for safely cleaning the unit's exterior surfaces.

Maintenance: Air Filter Cleaning and Energy Saving

Air Filter Removal and Cleaning

Step-by-step guide for removing, cleaning, and refitting the air filter.

Energy Saving Recommendations

Offers tips for optimizing energy efficiency, such as filter maintenance and window management.

Troubleshooting and Fault Finding

General Troubleshooting Advice

Immediate actions for leaks or malfunctions, emphasizing professional intervention.

Fault-Finding Guide

A table correlating common effects, causes, and solutions for unit malfunctions.

2-Way Valve Instructions and Components

Valve Kit Warnings

Specific warnings related to the valve kits supplied with the unit.

2-Way Valve Parts List and Diagram

Lists components of the 2-way valve and shows pipe connection diagrams.

2-Way Valve: Wall Connections

Wall Connection with 90° Elbow Fitting

Diagram and notes for connecting the 2-way valve via wall using a 90° elbow.

2-Way Valve: Pressure Drop Data

Pressure Drop Diagram Explanation

Explains how to read the pressure drop diagram based on flow rate.

Return Valve Adjustment

Pre-setting Return Valve Screw

Step-by-step guide for adjusting the return valve for system balancing.

Return Valve Settings and Pressure Drop

Return Valve Setting Chart

Table showing positions, turns, Kv, and Cv values for return valve settings.

Valve Insulation

Proper Valve and Pipe Insulation

Instructions on insulating water pipes and joints for optimal performance and condensation prevention.

Control Panel Setup

Onboard Control Panel Connections

Lists connection options for the onboard control panel and temperature probe effects.

Cooling Mode Settings

Explains how to configure the cooling function using dipswitch B for continuous or cycled operation.

Night Time Heating Settings

Details how to enable night time heating via dipswitch C for radiation/convection only.

Integrated Control Wiring Diagrams

2-Pipe and 4-Pipe Integrated Control Connections

Wiring diagram and component list for units with integrated control.

Remote-Mounted Control Wiring Diagrams

2-Pipe and 4-Pipe Remote Control Connections

Wiring diagram and component list for units with remote-mounted control.

Multi-Unit Control and Status Indicators

Connecting Multiple Units via Thermostat

Details how to connect multiple units to a single remote thermostat using RS485.

LED Status Indicators

Explains the meaning of the green LED on the circuit board for operational status and faults.

Error Messages and Remote Control Mounting

Troubleshooting Error Messages

Lists common error messages, their display codes, and potential causes.

Mounting the Remote Control Panel

Instructions for installing the wall-mounted remote control panel, including wiring.

Remote Control Wiring and Sensor Input

Wiring the Remote-Mounted Control

Details how to wire the remote control to the unit using spring-loaded terminals.

Presence Detector Sensor Connection

Explains how to connect a presence detector sensor for standby mode activation.

Control Setup Menu

Navigating the Setup Menu

Instructions on how to access and navigate the setup menu using the remote control.

Setting Modbus Address and Buzzer Volume

Guides for setting the unit's Modbus address and adjusting the buzzer volume.

Control Panel Settings and Calibration

Display Brightness and Digital Input Settings

Instructions for adjusting display brightness and configuring digital input modes.

Modbus Reset, Factory Reset, and Scale

Procedures for resetting Modbus, performing a factory reset, and changing temperature units.

0-10V Models Operation

0-10V Fan Speed Control

Explains how to use a 0-10V DC input for fan speed modulation and impedance considerations.

0-10V Thermostat Connection Diagram

Provides a wiring diagram for connecting 0-10V DC thermostats and signals.

0-10V Fan Speed Regulation Curve

Illustrates the linear fan speed regulation curve based on voltage input.

User Interface and Operation

Control Panel Operation Modes

Describes room temperature regulation using AUTO, SILENT, NIGHT, MAX programs and control panel memory.

Display Symbols and Key Functions

Explains the meaning of display symbols and the functions of various control keys.

User Controls and Settings

Device Activation and Mode Selection

Instructions for activating the device and switching between heating/cooling modes.

Standby Mode and Temperature Setting

How to put the unit in standby and select the desired room temperature.

Advanced User Operations

Automatic, Silent, and Night-time Modes

Details on using AUTO, SILENT, and NIGHT modes for fan speed and temperature adjustment.

Max Fan Speed, Key Lock, and Brightness

Instructions for operating at maximum fan speed, locking keys, and reducing display brightness.

Fine-Tuning and Long-Term Storage

Room Temperature Probe Offset Adjustment

How to adjust the displayed temperature based on probe placement for accuracy.

Switching Off for Extended Periods

Guidance on safely switching off the unit for longer periods, noting antifreeze function limitations.

Related product manuals

Myson iVector S2 User Manual

Table of Contents

Questions and Answers:

Myson iVector S2 Specifications

Summary

Installation Manual Overview

Product Conformity

Safety Symbols and Pictograms

Safety and General Information

General Safety Precautions

General Information and Product Details

General Installation Guidelines

Product Range Overview

Technical Specifications

Technical Data and Dimensions

4-Pipe Model Specifications

2-Pipe VS Model Dimensions

Dimensional Drawings

4-Pipe VS and VSI Model Dimensions

Installation: Unit Placement and Clearances

Unit Positioning Guidelines

Minimum Installation Clearances

Installation: Vertical Mounting

Accessing Unit Side Panels

Vertical Floor or Wall Installation

Installation: Horizontal/Ceiling and Grille Safety

Horizontal or Ceiling Installation

Front Grille Safety Support (VS)

Installation: Air Intake and Water Connections

Securing the Air Intake Grille

Water Connection Requirements

Installation: Condensate Discharge

Condensate Discharge Pipe Sizing and Routing

Condensate Discharge Connections

Installation: System Filling and Venting

System Filling and Venting Procedure

Valve Actuator Commissioning

Installation and Maintenance

Electrical Connection Requirements

Routine Maintenance Overview

Cleaning the Outer Casing

Maintenance: Air Filter Cleaning and Energy Saving

Air Filter Removal and Cleaning

Energy Saving Recommendations

Troubleshooting and Fault Finding

General Troubleshooting Advice

Fault-Finding Guide

2-Way Valve Instructions and Components

Valve Kit Warnings

2-Way Valve Parts List and Diagram

2-Way Valve: Wall Connections

Wall Connection with 90° Elbow Fitting

2-Way Valve: Pressure Drop Data

Pressure Drop Diagram Explanation

Return Valve Adjustment

Pre-setting Return Valve Screw

Return Valve Settings and Pressure Drop

Return Valve Setting Chart

Valve Insulation

Proper Valve and Pipe Insulation

Control Panel Setup

Onboard Control Panel Connections

Cooling Mode Settings

Night Time Heating Settings

Integrated Control Wiring Diagrams

2-Pipe and 4-Pipe Integrated Control Connections

Remote-Mounted Control Wiring Diagrams

2-Pipe and 4-Pipe Remote Control Connections

Multi-Unit Control and Status Indicators

Connecting Multiple Units via Thermostat

LED Status Indicators

Error Messages and Remote Control Mounting

Troubleshooting Error Messages

Mounting the Remote Control Panel

Remote Control Wiring and Sensor Input

Wiring the Remote-Mounted Control

Presence Detector Sensor Connection

Control Setup Menu

Navigating the Setup Menu

Setting Modbus Address and Buzzer Volume