Page 2
Warnings and Safety Information • Do not install this product in areas where the following may be present or occur: • Excessive oil or a grease laden • Ambient temperatures higher than 40°C atmosphere. and lower than -20°C. • Corrosive or flammable gases, liquids or •...
Contents Product Description Installation Overview Wall mountuing a Unit Floor mounting a Unit Vertical Discharge Condensate Installation Attaching the Ducting Connecting the Power Supply Accessing the Mains PCBA Connecting a Boost (Light) Switch from a different circuit, Controllers and Sensors Operating and Monitoring Powering up the Unit Initialisation/Loading Screen...
Product Description Product Description Mechanical Ventilation/Heat Recovery (MVHR). This heat recovery unit is designed for the energy efficient ventilation of houses and similar dwellings. The unit is designed for continuous 24-hour extract ventilation of stale moist air from bathrooms, toilets, utility rooms and kitchens. As the stale air is extracted, a heat exchanger within the unit transfers up to 93% of the extract air’s heat, into the supply air entering the habitable rooms such as bedrooms and lounge.
Installation Overview Before installation of the unit We advise installers to fix all mains and sensor wiring along with any internal accessories prior to fixing the MVHR unit in position, leaving approximately 500mm tails to allow for internal routing. Inspect the Unit When taking delivery of the unit, check the items delivered against the enclosed delivery note.
Installation Wall Mounting the Unit Step 1: Mark the wall bracket position using the dimensions shown. Note the position of the top of the unit in relation to the wall bracket. Ensure the bracket position is horizontal. Step 2: Attach the wall bracket, using the supplied fixings, only if fixing into massonary walls/surfaces.
(e.g., sensor, control cables etc) are routed through the back box on rear of the unit. prior to mounting the board. Vent-Axia recommends that where possible, the wall bracket is used in conjunction with any floor mount solution to prevent the unit from tipping.
Installation Vertical Discharge Condensate Installation Note: Depending on the handling of the unit (See page 4) remove the required condensation blanking cap and fit the supplied condensation outlet adaptor to the unit first. A trap must be fitted between the condensate drain of the unit and the rest of the waste system.
Installation Connecting the Power Supply WARNING 1. MAINS SUPPLY VOLTAGES (220-240V AC) ARE PRESENT IN THIS EQUIPMENT, WHICH MAY CAUSE DEATH OR SERIOUS INJURY BY ELECTRIC SHOCK. ONLY A SUITABLE QUALIFIED PERSON SHOULD CONNECT THE POWER SUPPLY TO THIS UNIT. 2.
Installation Accessing the Main PCBA WARNING ENSURE THE ELECTRICAL SUPPLY AND CONTROLS ARE ISOLATED FROM THE MAINS POWER SUPPLY BEFORE REMOVING ACCESS COVERS Step 1: Remove the front cover by pressing the tabs either side of the control module and lifting the cover outwards from the bottom edge.
Installation Connecting a Boost (Light) Switch from a different circuit, Controllers and Sensors For good EMC engineering practice, any sensor, switched live or Volt free cables should not be installed within 50mm of other cables or in the same metal cable tray as other cables. When fitting external controls, all cables should be routed through the back box on the rear of the unit, as shown below.
Page 12
Installation Connecting a Boost (Light) Switch from a different circuit If the supply used for the Switched Live is on a different circuit to the power connections, the connections LS2 and NS2 should be used, via a separate isolator. Please follow circuit diagram as shown.
Operating and Monitoring Powering up the Unit Switching On To switch the unit on: 1. Switch on the power at the mains supply isolator feeding the unit. 2. Following switch-on, after initialisation (up to 2 minutes) the fan motors will start and the Control Unit will display the home screen.
Operating and Monitoring Overview The instructions in this section are intended to provide configuration and operation information for setting up the equipment. In the event of problems, see Diagnosing a Problem on page 33. Follow good practice when commissioning the unit. Ensure that the system is installed according to the system designer’s intent incorporating any acoustic ducting, that all joints are airtight, ducting is well supported, bends are avoided close to vents, and that the vent valves are fully open at the start of the commissioning process.
Operating and Monitoring Home User Menu Display overview – Indoor air quality monitor Home screen Heat recovery % Scheduled time slots Filter life remaining IAQ indicator No additional In conjunction with demand Read only Adjustable Adjustable and linked to: • Service interval remaining Proportional •...
Operating and Monitoring Display overview – Mode indicators Display overview – Indoor air quality monitor Air quality indicator uses sensor values that the unit supports: IAQ indicator No additional • Relative humidity demand • CO2 (if fitted) • TVOC (if fitted) Proportional demand Full boost...
Solid Blue LED = User Connected/Authenticated. The App allows the user instant access to commissioning, configuration, direct monitoring and control of the MVHR unit, using a smart phone or tablet with the Vent-Axia Connect App, available from the iTunes Store or on Google Play.
Operating and Monitoring Pairing sensors To pair the unit with a wired or wireless sensor: • Press the MENU button to turn on the display. • Press and hold the MENU button until the LED illuminates solid White. • Release the MENU button, the LED will flash White to indicate that it is in pairing mode.
Operating and Monitoring Speed override Home screen Override timer Cancel timer To Cancel the Override timer, set the time to 00:00 Increase Timer Decrease Timer Change Fan Speed – Low, Normal, Boost, Purge Confirm Timer Heat recovery Heat recovery % Heat Recovered information (in Percentage Approximate)
Operating and Monitoring Schedule Fan Speed Press 2 x from Home Screen to enter Day 1 1 Bar = Low scheduling. 2 Bar = Normal 1,2,3,4,5 are Enter edit week days mode/Confirm 3 Bar = Boost 6,7 are Selection. weekend days 4 Bar = Purge Move between 1,2,3,4,5,6,7...
Operating and Monitoring Filter reset Filter life remaining Press 3 x from Home Screen to enter filter screen. Change service duration for filters: 3, 6 or 12 months. Enter Reset/Confirm Selection. Months remaining, will indicate when filters need replacing/cleaning. Models with filter pressure sensors fitted, filter life is indicated by % block values.
Operating and Monitoring Engineer menu Engineering mode Press and hold for 3 seconds to exit or enter the Engineer Menu. Use up and down to adjust each pin number and press to confirm each number and enter Engineer settings. Engineer Overview Important: “Air flow units”...
Operating and Monitoring Engineer menu – Unit handing Please see page 4 for details of handing. Enter Menu/Confirm Selection Left Handed = L Right Handed = R Left Right Handed Handed Note: MVHR with Left-Hand and Right-Hand spigot configuration. Units with a preheater are preconfigured from the factory and the handing cannot be changed.
Operating and Monitoring Engineer menu – Port allocation Change Fan Speed – Low, Normal, Boost, Purge Enter/Confirm Selection Change Port Switch SW01 to SW05 or LS1 & NS2 Engineer menu – Proportional Inputs Press Once for Zonal Selection Press twice for Control method Selection Change Proportional Control P1 or P2 Change Zonal Control 1-16 Control Method Temperature,...
Operating and Monitoring Engineer menu – Service Intervals Enter/Confirm Selection Service Icon Reset Service Interval Change service interval 1-60 months. Engineer menu – Summer bypass Outdoor Indoor Temperature Temperature Fan Speed Bypass Mode Press 1 x for Bypass Mode 00 = Disabled (not recommended) 01 = Normal Bypass Change field up/down 02 = Evening Fresh...
Operating and Monitoring Engineer menu – Humidity Enter/Confirm Selection Change Relative Humidity between 50-90% 70% Default Rapid rise can be Enabled/Disabled via the App. Along with Ambient response/overrun times. Engineer menu – Frost Protection mode Engineer menu – CO2 threshold This is only visible when the CO2 sensor is installed.
Operating and Monitoring Engineer menu – Date / Time Enter/Confirm Selection Change entry within below field. YY = Year MM = Month DD = Day HH = Hour MM = Minutes Engineer menu – PIN Change Enter/Confirm Selection Change Pin Number 1-9 Engineer menu –...
Operating and Monitoring HMI - Reset HMI and Mainboard pairing Warning: This will only reset the user interface to factory settings. Push and hold MENU button for 13 seconds until status LED is flashing Red. To reset press the MENU button to confirm, the LED will stop flashing.
Maintenance Filter Maintenance Heat recovery units require regular maintenance. The Econiq range has been designed to allow easy access to filters with no tooling required. When the unit displays a warning symbol and warning code: W-12 filter cleaning/replacement is overdue. When it displays notification N-1 the filter may need cleaning/replacement within the next month.
Maintenance Periodic Maintenance WARNING THE FAN AND ANCILLARY CONTROL EQUIPMENT MUST BE ISOLATED FROM THE POWER SUPPLY DURING MAINTENANCE. Heat Exchanger Cell Step 1: Remove the outer cover by pressing the tabs either side of the control module and lifting the cover outwards from the bottom edge.
Maintenance Spares The following spare parts may be ordered from Vent-Axia: Part No Description Main PCBA – Contact Technical Support ?????? 411622 Control Module (HMI Controller with Display & with RF) 411703 Control Module (HMI Controller without Display & with RF) 413741 Control Module (HMI Controller without Display &...
Maintenance Diagnosing a Problem In the event of a problem, always troubleshoot the unit according to: • Notification code displayed on the control unit. A notification flag indicates service/maintenance will be due soon. • Warning code displayed on the control unit. A warning code is advisory and will not immediately stop the function of the unit.
Maintenance Power on Self-Test The LED blinks RED for ‘X’ times, based on the error bit flag that is set. e.g. “Storage” 3x flash – Pause – 3x flash………. MVHR (HMI) Self-Test Failures Flash RNG - Random Number Generator (RNG) peripheral has failed as part of self-test routine Flash - DS-45DB081E flash chip initialisation failed Storage –...
Technical Data Flow Rate Settings The Unit has four user defined speeds which are adjustable in the engineer menu or via the App. The default speed names are also customisable via the App. Default speed modes names: - • • Normal (Unit default operating mode) •...
Technical Data Summer Bypass Mode The MVHR includes an intelligent Summer Bypass (SBP) feature, this bypasses the heat exchanger when necessary to provide free cooling, this is triggered when the desired Indoor Temperature is above the ambient temperature. Note that the volume of air provided by a ventilation system is a fraction of that required for space heating or space cooling and will not in itself be sufficient to cool a room.
Technical Data Input Ports allocation menu Inputs are allocated to zone 0 by default. Continuous Continuous menu is used with a rocker switch or Relay, mains (LSx) or Dry Contact (voltage free) (SWx). • Delay timer - delays the action after the user first operation, (by default closing the switch). •...
Page 39
Technical Data Proportional inputs (0-10V) This type of control is typically used with Temperature sensors, Humidity sensors, CO2 sensors or any other Inner Air Quality sensors, with analog 0-10V outputs. If the voltage is between 0 to 0.5V no sensor will be detected. CO2 Sensor Mode •...
Technical Data Default Settings Parameters Settings Commissioning Screens Country United Kingdom Date Automatic - Factory set Unit configuration Right Hand Filter Check 12 months Summer Bypass Normal Mode Names Normal, Boost, Low, Purge (Only in App) User Mode Boost Supply/Extract 70 % Normal Supply/ Extract 40 %...
United Kingdom contact your local supplier. Vent-Axia guarantees its products for two years from date of purchase against faulty material or workmanship. In the event of any part being found to be defective, the product will be repaired, or at the Company’s option replaced, without charge, provided that the product: -...
Need help?
Do you have a question about the Sentinel Econiq M and is the answer not in the manual?
Questions and answers