SystemAir SAVE VTR 250/B Service & Accessories Installation Manual
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SystemAir SAVE VTR 250/B Service & Accessories Installation Manual

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SAVE VTR 250/B
Service & Accessories Installation Manual
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Document in original language | · Rev01

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Summary of Contents for SystemAir SAVE VTR 250/B

  • Page 1 SAVE VTR 250/B Service & Accessories Installation Manual Document in original language | · Rev01...
  • Page 2 Systemair UAB reserves the rights to alter their products without notice. This also applies to products already ordered, as long as it does not affect the previously agreed specifications. Systemair is not liable or bound by warranty if these instructions are not adhered to during installation or service. | Rev01...

  • Page 3: Table Of Contents

    Contents Overview ............1 Internal components ......29 6.2.1 Component descriptions .... 29 Warranty ..........1 6.2.2 Overheat protection reset Type label..........1 button ........31 Disposal and recycling ......1 Electrical connections ......31 Important Safety Information ......1 6.3.1 Main board layout ....31 Intended Use.........2 6.3.2 External connections...

  • Page 5: Overview

    For the assertion of warranty claims, the products must be correctly connected and operated, and used in accordance with the data sheets. Further prerequisites are a completed maintenance plan with no gaps and a commissioning re- port. Systemair will require these in the case of a warranty claim. Type label Before calling your service representative, make a note of the specification and production number from the type label, which can be found on the side of the units, next to the external connections.

  • Page 6: Intended Use

    | Important Safety Information Intended Use • Abide by the system-related conditions and requirements of the system manufacturer or plant constructor. • Keep all the warning signs on the device and in a legible condition. • The device is not to be used by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction.

  • Page 7: Declaration Of Conformity

    Heat recovery ventilation unit: SAVE VTR 250/B (The declaration applies only to product in the condition it was delivered in and installed in the facility in accordance with the included installation instructions. The insurance does not cover components that are added or actions carried out subsequently on the product).

  • Page 8: System Curves

    | System curves System curves Every change in the pressure of the ventilation system, will result in a different airflow. Each curve shows a different airflow level setting: 1. 16% (MINIMUM LEVEL) 2. 20% (LOW LEVEL) 3. 50% (NORMAL LEVEL) 4.

  • Page 9: Technical Data

    Technical Data | Technical Data Dimensions and Weight, L model Fig. 2 Dimensions of left hand unit * Water coil connections. ** Drainage. The unit weight is 56 kg. | Rev01...

  • Page 10: Dimensions And Weight, R Model

    | Technical Data Dimensions and Weight, R model Fig. 3 Dimensions of right hand unit * Water coil connections. ** Drainage. The unit weight is 56 kg. | Rev01...

  • Page 11: Connections Left And Right Models

    Configuration General SAVE VTR 250/B has a modern touchscreen LCD control panel, simply known as HMI — Human Machine Interface. The touchscreen display provides information about current state of the unit and allows you to control all system functions. Settings are done by touching the icons or options. The touch screen is sensitive and it is not necessary to press too hard.

  • Page 12: Common Symbols

    | Configuration • menu language • time and date • import configuration file (if the Internet Access Module (IAM) with configuration file is available) • airflow control type (Manual/RPM) and airflow level values • heater type (None/Electrical/Water/Change-over) The Startup Wizard cannot be skipped. Common symbols The following selection symbols are common and are present in most menu pages: On and Off slider to activate or...

  • Page 13: Home Screen

    Configuration | Home screen Touching home icon (pos. A) in drop-down menu list (pos. 1) will always returns you to home screen after commissioning. 1. Drop-down menu list 2. Active user mode 3. Airflow settings 4. Temperature settings 5. List of active alarms 6.
  • Page 14 | Configuration Icon Text Description Sets speed of both supply and extract air fans to Low levels when user is away from home for a long period of time. HOLIDAY ECO mode is active. Set duration in days. Sets speed of both supply and extract air fans to maximum High levels and temperature setpoint offset to –3 K when apartment is more crowded than usual.

  • Page 15: Temperature Settings

    Configuration | Configurable digital input can be activated via signal triggered by push button, presence detector or any other external device with digital output, such as Building Management Systems (BMS) Configurable digital inputs are grouped in levels of priority, Configurable Digital Input 1 being the highest, meaning it can’t be overwritten by other user functions.

  • Page 16: Airflow Settings

    | Configuration Temperature set point is for room air temperature, supply air temperature or for extract air temperature depending on which control mode is active. Default setting is Supply air temperature control. Control mode of the temperature can be changed in Service menu. 5.5.2.1 ECO mode ECO mode is a power saving function that can be activated in SET TEMPERATURE menu.

  • Page 17: Status Line

    Configuration | Demand Control function is responsible for IAQ (Indoor Air Quality) regulation. Relative humidity (RH) and/or CO sen- sors are responsible for IAQ monitoring. Indoor air quality (IAQ) indicator is available if AUTO mode and Demand Control function is activated. IAQ levels: •...

  • Page 18: Main Menu

    | Configuration Icon Text Description Function sets speed of supply air fan to High level and extract air fan to Low level to increase air pressure within the apartment for better dust collection through central vacuum cleaner. Vacuum Function can be activated via digital input — Central Vacuum Cleaner cleaner Function.

  • Page 19: Alarms

    Configuration | 5.7.1.1 Components Type and settings of heat exchanger, heater, cooler, extra controller. 5.7.1.2 Sensors Values from sensors and load of fans (rpm). 5.7.1.3 Input Status Status of configured analog, digital and universal inputs. Connected component type and raw value (volts) is displayed. 5.7.1.4 Output Status Status of configured analog, digital and universal outputs.
  • Page 20 | Configuration Alarm name Explanation Do the following Indicates failure of pre-heater to Check the pre-heater reset button. Defrosting error preheat the incoming outdoor air (in Check the pre-heater cabling. case Extra controller is configured as Contact your installation company or place of purchase.
  • Page 21 Configuration | Alarm name Explanation Do the following Rotor guard Indicates a rotor malfunction. If the rotating heat exchanger has No rotation guard signal for 180 stopped. Check the rotor belt. seconds. If the heat exchanger is still rotating, check that the quick connector for the sensor is connected and that there is an air gap of 5-10 mm between the sensor and the magnet.
  • Page 22 | Configuration Alarm name Explanation Do the following Notification about filter change. Filter have to be replaced in one Filter warning month time. Please acquire new filters. Filter Time for filter change. Change the filter. Change filter according to the instructions in the User Manual.

  • Page 23: Week Schedule

    Configuration | Digital output configured as Sum Alarm sends a generic signal every time the alarm is triggered, except for alarms Ex- ternal stop, Output in manual mode and Manual Fan Stop. This signal does not specify the alarm type. 5.7.3 Week Schedule The unit can be configured to operate at set airflow levels up to two time periods (00:00–23:59) on user...

  • Page 24: System Preferences

    | Configuration A filter change notification is shown one month prior to filter change. If a new filter period is selected and confirmed or filter alarm is acknowledged, the timer resets and starts counting from the beginning. Information what filter type is needed for change or where to order a new filter can be found in Help menu. 5.7.5 System Preferences Configuration of unit location, language and time.
  • Page 25 Configuration | Relative humidity and rotation speed signals from fans are already pre-addressed to specific terminals and cannot be changed, all other inputs are free for configuration by commissioning. Inputs are free to be used for any purpose. Universal input (UI) configured as universal analog input (UAI) can be configured for several inputs because multiple sensors of the same type can be used.
  • Page 26 | Configuration Table 5 Overview of output configuration Analog outputs Digital outputs Output type Output type Auto/Manual Auto/Manual Value Value 5.7.6.3 Components Configuration of connected components. Heat Exchanger • Choose heat exchanger type. Available types: Rotating / Plate • Activate or deactivate passive house function if heat exchanger type Rotating is selected. Options: Yes / No.
  • Page 27 Configuration | Range: Off / 1–240 sec. • Set actuator type. Default value is 0–10 V. Range: 0–10 V / 2–10 V / 10–0 V / 10–2 V. • Set circulation pump temperature. Default setting is 0°C. This option is available if Preheater controller type is selected.
  • Page 28 | Configuration Pressure Setting Flow (CAV) Manual External (VAV) Manual Fan Stop — turn on or off manual fan stop, this function enables manual fan stop from HMI. Default setting is OFF. Pressure Supply air fan control sensor: Sensors — Pressure at 0V: 0-500 Pa, default configure sensor setting 0 Pa...
  • Page 29 Fan speed differ for each household because of different unit size, duct system and system pressure. In order to find correct fan speed, external tool must be used at Systemair website. 1. Go to Systemair website and find your unit.
  • Page 30 | Configuration 3. See calculated speed values in revolutions per minute (rpm) for both supply and extract air in the table bellow diagrams. Fig. 7 Example speed for supply and extract air 4. Use this procedure to find fan speed for all airflow levels: MINIMUM LEVEL, LOW LEVEL, NORMAL LEVEL, HIGH LEV- EL, MAXIMUM LEVEL.
  • Page 31 Configuration | • Scan for networks — use this search function to find your local protected network. Detailed procedure is de- scribed bellow. Connecting the IAM to wireless network 1. If your wireless router does not support WPS, Wi-Fi connection should be set up manually. Therefore you need to find Wi-Fi name and add password using control panel.

  • Page 32: Help

    | Service 5.7.6.9 Password Settings Service level is always locked with a password. Other menu levels have a separate option for locking. If password re- quirement is activated for different menu levels, these are unlocked with the administrator password. Choose what menus should be locked or not. 5.7.7 Help FAQ, troubleshooting of alarms, contact information for support is provided in this menu.

  • Page 33: Internal Components

    Service | Internal components Fig. 8 Internal components Position Description Mounting bracket External connections Extract air fan Supply air filter Extract air filter Main print card Rotating heat exchanger Supply air fan Supply air sensor Outdoor air sensor Relative humidity/Extract air temperature sensor Overheat protection sensor Internal electrical re-heater 6.2.1...
  • Page 34 6.2.1.3 Heat exchanger SAVE VTR 250/B is equipped with a highly efficient, rotating heat exchanger. Required supply air temperature is there- fore normally maintained without adding additional heat. The heat exchanger is removable for cleaning and maintenance, see “User Manual” for more information.

  • Page 35: Overheat Protection Reset Button

    6.3.1 Main board layout The SAVE VTR 250/B is equipped with built-in regulation and internal wiring. The figure shows the main circuit board. See wiring diagram for more information. Fig. 10 Main circuit board connections...

  • Page 36: External Connections (Connection Board)

    | Service Position Description Main circuit board Connection to the external connection box Terminals for a heater Terminals for a TRIAC Terminals for the mains power supply Terminals for power supply of extract air fan Terminals for power supply of supply air fan Terminals for internal relative humidity/temperature sensor Analog input 1 —...

  • Page 37: Troubleshooting

    Troubleshooting | Position Description UI3–5 Freely configurable Universal input. Can be configured to act as Analogue input (0–10V) or as Digital input (24V). None/Input type selection in HMI (NC or NO polarity). Maximum current 200mA at 24VDC +-10%. Troubleshooting If problems should occur, please check the items below before calling your service representative. Malfunction Action 1.
  • Page 38 | Troubleshooting Action Malfunction 1. Check the display for alarms. 2. Check the active user functions in HMI screen if Defrosting function is running. 3. Check set supply air temperature in the HMI. 4. Check if ECO mode is activated in HMI (it is a power saving function and prevents the heater from activating).

  • Page 39: Accessories

    Accessories | Accessories SAVE VTR 250/B have many available accessories that can be used to expand functionality of the unit and increase comfort level. Recommended accessories can be always found at Systemair website www.systemair.com by searching the article number or the name of the desired accessory.
  • Page 40 • D1 — Download and install Systemair mobile application on your device. Systemair mobile application is available for both Android and iOS mobile operating systems. • D2 — Systemair web application does not require installation and can be accessed directly through the website (homesolutions.systemair.com ) by using any web browser.

  • Page 41: Indoor Air Quality Sensors

    • 3 — Extract air • 4 — Exhaust air Component/product — Article number: • Systemair-1 CO2 duct sensor — 14906 • Systemair-E CO2 sensor — 14904 • Room sensor 0-50C (temperature) — 211525 • Systemair-E CO2 RH Temperature — 211522 Installation and connection 1.

  • Page 42: Temperature Control

    | Accessories Temperature control 8.3.1 Electrical duct pre-heater Electrical pre-heater can be installed in the outdoor air duct to pre-heat out- door air before it reaches the unit and prevent icing in the heat exchanger. • PH — electrical pre-heater •...

  • Page 43: Internal Water Heater

    • 3 — Extract air • 4 — Exhaust air Component/product — Article number: • Water coil for SAVE VTR 250/B — 156370 • RVAZ4 24A Actuator 0-10V (S) — 9862 • ZTV 15-0,4 2-way valve — 9829 • ZTV 15-0,6 2-way valve — 6571 •...

  • Page 44: Duct Water Heater

    | Accessories Fig. 14 Water heater connections Configuration 1. Go to Service menu 2. Enter password (default 1111) 3. Activate the actuator. Go to Components menu, select Heater menu and select type as Water. Choose actuator voltage type. Do advanced settings if necessary. 4.

  • Page 45: Duct Water Cooler

    Accessories | Installation and connection 1. Install water heater in the duct. Connect pipes, 2/3– way valve and actuator. Important Do NOT use 24V DC power output from the connection board for valve actuator. 2. Connect actuator (S) to any free analog output. Fig.

  • Page 46: Change-Over Coil For Heating/Cooling Function

    | Accessories • WC — water cooling battery • SAT — supply air temperature sensor • S — valve actuator • 1 — Outdoor air • 2 — Supply air • 3 — Extract air • 4 — Exhaust air Component/product —...
  • Page 47 This description explains the most common solution for connecting and controlling heating and cooling with a water coil and a heat pump. Please always check with your local “Systemair” consultant if your different solution for change-over function is supported by SAVE units.

  • Page 48: Airflow Control

    | Accessories Fig. 17 Change-over heating/cooling connections Configuration Before change-over heating/cooling can be activated, all components must be configured in the control panel. 1. Go to Service menu 2. Enter password (default 1111) 3. Go to Components menu, select Heater menu and select type as Change-over. Do advanced settings if necessary.

  • Page 49: Installation/Maintenance

    Accessories | • SPI-125 C Iris damper — 6751 Installation and connection • Follow instructions in the manual which is delivered with the accessory. Installation/Maintenance 8.5.1 Outdoor/Exhaust air dampers If manual fan stop is activated, the unit should be provided with dampers in exhaust and outdoor ducts to avoid cold draught and risk of condensation when the unit has been stopped.

  • Page 50: Cooker Hoods For Save /B Series

    SAVE /B series have a dedicated 5th duct for air extraction through a cooker hood. This duct bypasses the heat ex- changer and air from the kitchen gets removed directly to the outside. Recommended cooker hoods can be found at Systemair website in the product description of your ventilation unit.

  • Page 51: Pressure Guard

    Accessories | 8.5.3 Pressure Guard A differential pressure switch is used to detect air pressure difference in a duct. The contact in the switch changes (on/ off) when air pressure exceeds the setpoint value. One of the possibilities is to use this device with a cooker hood which has an internal fan. Turned on cooker hood causes air pressure to increase in the exhaust air duct.

  • Page 52: Presence Detector

    | Accessories Note: • If the 24 V power supply on the connection board (CB) is used for other equipment, the number of control panels that can be powered from the unit will decrease. • A single active control panel draws 50 mA. The connection board supplies up to 250 mA. If no other accessories use 24 V power supply from the unit, up to 5 control panels can be connected without a need of external power supply.

  • Page 53: Push Button

    Pressing a push button will activate your selected function. Filters The filters need to be replaced when polluted. New sets of filters, if possible, should be acquired directly from Systemair to meet filter quality standards. If that is not possible, please contact your installer or wholesaler.
  • Page 54 Systemair UAB Linų st. 101 LT–20174 Ukmergė, LITHUANIA Phone +370 340 60165 Fax +370 340 60166 www.systemair.com...

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