SystemAir SAVE VTC 300 Installation And Service
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SystemAir SAVE VTC 300 Installation And Service

Heat recovery ventilation unit
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Download this manual See also: User Manual
SAVE VTC 300
Heat Recovery Ventilation Unit
Installation and Service
Systemair is not liable or bound by warranty if these instructions are not
adhered to during installation or service.
© 2015 Copyright Systemair AB
Systemair AB can accept no responsibility for possible errors in catalogues, brochures and other printed
material. Systemair AB reserves the right to alter its products without notice. This also applies to products
already on order provided that such alterations can be made without sub sequential changes being
necessary in specifications already agreed.
All rights reserved.
207232-EN_GB
Document in original language
2015-11-04 A007

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Summary of Contents for SystemAir SAVE VTC 300

  • Page 1 Systemair AB can accept no responsibility for possible errors in catalogues, brochures and other printed material. Systemair AB reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without sub sequential changes being necessary in specifications already agreed.

  • Page 2: Table Of Contents

    5 Installation..........................7 5.1 Unpacking........................7 5.2 Where/how to install ......................7 5.3 Installing the Unit......................8 5.3.1 Installation Procedure SAVE VTC 300 ..............8 5.3.2 Electrical Connections .....................10 5.3.3 Installation procedure Electrical Re-heater battery.............13 6 Operation ..........................18 6.1 Control panel ........................18 6.1.1 Display symbols......................19...

  • Page 3: Declaration Of Conformity

    Heat recovery ventilation unit: SAVE VTC 300 (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 4: Disposal And Recycling

    Caution • Do not connect tumble dryers to the ventilation system. • Duct connections/duct ends must be covered during storage and installation. SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...

  • Page 5: Product Information

    4 Product information 4.1 General This installation manual concerns air handling unit type SAVE VTC 300 manufactured by Systemair AB. SAVE VTC 300 include the following model options: Right or Left models: R (Right), L (Left) (see figure 2). The different models are recognized by the control panel which is situated on the right side of the unit in an (R) unit and on the left side in an (L) unit.

  • Page 6: Technical Data

    4.2.1 Dimensions and Weight Fig. 1 Dimensions (mm) and Weight, drawn as a right hand connected unit Model VTC 300 Inspection hatch Model Weight (kg) VTC 300 Y: ½″ outer thread SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...
  • Page 7 Left hand model (Supply air connection and control panel is situated on the left hand side of the unit viewed from the front) Table 1: Symbol description Symbol Description Supply air Exhaust air Outdoor air Extract air SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...

  • Page 8: Required Space

    4.3 Transport and storage The SAVE VTC 300 should be stored and transported in such a way that it is protected against physical damage that can harm panels etc. It should be covered so dust, rain and snow cannot enter and damage the unit and its components.

  • Page 9: Installation

    Systemair products. 5.2 Where/how to install SAVE VTC 300 are meant for indoor installation in a heated space. Mount the unit on a vertical flat surface. It’s important that the unit is completely levelled before it is put into operation.

  • Page 10: Installing The Unit

    Fig. 4 Installation position (right hand unit) 5.3.1 Installation Procedure SAVE VTC 300 Prepare the surface where the unit is to be mounted. Make sure that the surface is flat, levelled and that it supports the weight of the unit.
  • Page 11 The installation of the unit and complete ventilation system must be performed by an authorized installer and in accordance with local rules and regulations. Connect the unit electrically to the mains with the enclosed plug and check that it starts up correctly. SAVE VTC 300 Installation and Service Systemair Sverige AB...

  • Page 12: Electrical Connections

    5.3.2 Electrical Connections The SAVE VTC 300 is wired internally from factory. The electrical connection box can be found in the supply air fan compartment. The top cover plate is removed by removing 2 screws in the lower front edge of the cover plate (figure 5).
  • Page 13 Terminals for digital inputs (DI 1–7) Terminals for internal control panel. Terminals for regulated power supply to electrical heater Modbus connection. See "User manual Modbus" for details. Terminals for internal relative humidity sensor SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...
  • Page 14 Normally closed, 24 V, max 1 A Reference Water cooler control signal (AO2) 0–10 V DC Reference Water heater control signal (AO1) 0–10 V DC Reference Bypass damper/Rotor control (AO3) If used, 0–10 V DC SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...

  • Page 15: Installation Procedure Electrical Re-Heater Battery

    • All electrical maintenance work must be carried out by an authorized installer and in accordance with local rules and regulations. Disconnect the unit from the mains supply SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...
  • Page 16 (pos. 1) by loosening the 2 screws in the lower front edge of the plate (pos. 2) Remove the 3 screws with the black knobs (pos. 1) from the inner casing. SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...
  • Page 17 4 enclosed screws. Connect it to the main print card by the use of the prepared connections on the side of the 2 circuit boards. SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...
  • Page 18 See wiring diagram for detailed information. Connect the wires in the 2 lead black sensor cable (OT) to terminals on the main print card (pos. 2). See wiring diagram for detailed information. SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...
  • Page 19 The second label is placed next to the unit label situated on top of the unit next to the duct connections. SAVE VTC 300 Installation and Service...

  • Page 20: Operation

    ENTER menu choices or settings by pressing the button RETURN button Step RETURN in the menu levels and to abort an initiated parameter change and restore the original value by pressing the button SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...

  • Page 21: Display Symbols

    It is not recommended to activate manual fan stop (set fan to OFF) in standard households.If manual fan stop is activated, the unit should be provided with dampers in exhaust and fresh air ducts to avoid cold draught and risk of condensation when the unit has been stopped. SAVE VTC 300 Installation and Service Systemair Sverige AB...

  • Page 22: Service Menu Overview

    Auto time summertime/wintertime change? change-over. Time will YES/NO automatically change between summertime and wintertime according to European standard, based on Greenwich time zone. Default value YES. Set YES or NO SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...
  • Page 23 • Level 4: 45 – 59% • Level 5: 60 – 100% Choose between the levels to see the time in hours the fans have been active in the different levels. SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...
  • Page 24 0–100% (P-band) range for PI controller. Default value 5°C. Set integral time (I-time) range for PI controller. Default value Off. Shows output signal presented for the supply air temperature controller. SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...
  • Page 25 The fan symbol should have the middle area empty, and the outer and inner filled. It should not be possible to change either. SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...
  • Page 26 Default is auto. Selecting man enables the user to manually control the actuator/damper with a 0–10 V signal. 0 V completely closed and 10 V completely opened actuator/bypass damper. SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...
  • Page 27 DI is activated and period is set to 0. Counting down for the predefined period starts when DI function is deactivated. Default value is 0 sec. SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...
  • Page 28 It is recommended to connect DI7 and DI1 or DI3 in parallel. If DI7 is activated, set the fans speed to min. Airflow settings are done when configuring DI1/DI3. SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...
  • Page 29 DI1 and DI2 Node 2 type: DI. Active wireless DI3 and DI4 Node 10 type: DI. Active wireless DI19 and DI20 Active wireless DI1-20 are available to assign to DI1-5 SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...
  • Page 30 (see chapter 7.2). Mode Normal/ Hard/ Soft Allow unbalance YES RH sensor: When RH sensor is not used: Defrosting Mode 1–5 Allow unbalance YES RH sensor: SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...
  • Page 31 Set Language by turning the SELECTION knob. Service Version VTC 300 Shows current software Versions versions Note: Appl. The software versions are Boot just an example and may differ in a specific unit. SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...

  • Page 32: Setting The Temperature

    5 steps: Off, Low, Nom, High and Auto. By doing so, you override the programmed week schedule for the unit until the end of the present time period in the week program (chapter 7.3). SAVE VTC 300 Installation and Service Systemair Sverige AB...

  • Page 33: Manual And Automatic Summer Mode

    6.6 Cool recovery If the outdoor air is warmer than the extract air and the supply air is above the setpoint, cool recovery occurs. This condition blocks the heat regulation process. SAVE VTC 300 Installation and Service Systemair Sverige AB...

  • Page 34: Commissioning

    • a new print card is installed (spare part) In this case the unit type must be entered ( SAVE VTC 300 ) The airflow in the Start up wizard can be set by percentage (Airflow %) with the Fan control.

  • Page 35: Perform Factory Reset

    4. Turn the SELECTION knob so YES is shown and press ENTER. Really reset? YES/NO ACCEPTED 5. ACCEPTED is shown in the display window 6. The Start up Wizard starts after approximately 10 seconds SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...

  • Page 36: Defrost Settings

    Approximate values of relative humidity in the extract air at cold outdoor temperatures. In newly constructed houses it might be necessary with a higher defrost level during the first winter period. SAVE VTC 300 Installation and Service Systemair Sverige AB...

  • Page 37: Setting The Defrost Level

    Defrosting Mode 1–5 RH sensor: 5. Select if unbalanced airflows are allowed in the Allow unbalance YES/NO building during the defrost cycle. Choose between YES and NO. Default is YES. SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...

  • Page 38: Programming The Week Schedule

    3 minutes, to prevent the heater from triggering the over heat protection sensor, before they stop. 8. Step back with the RETURN button until you reach the main menu display SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...

  • Page 39: Extra Functions

    • The unit is correctly configured and commissioned • The week schedule and airflow settings are correctly programmed. 9 Service Note: Questions regarding the unit and the installation are answered by your installer or place of purchase! SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...

  • Page 40: Warnings

    • Make sure that filters are mounted in their place before running the system • This product must only be operated by a person which has suitable knowledge or education within this field or carried out with the supervision of a suitably qualified person. SAVE VTC 300 Installation and Service Systemair Sverige AB...

  • Page 41: Internal Components

    Print card with terminals Temperature sensor, supply air Temperature sensor, outdoor air Temperature sensor, extract air Fast couplings for supply- and extract air fan The damper may not be turned by hand! SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...

  • Page 42: Description Of Components

    “DAMPER WARNING” appears in the control panel. 9.2.1.4 Heat exchanger SAVE VTC 300 is equipped with a highly efficient, counter flow plate heat exchanger. Required supply air temperature is therefore normally maintained without adding additional heat.
  • Page 43 A water cooler (optional) can be acquired as an accessory and be controlled by the unit. If a water cooler is installed the supply air sensor (SS) at AI 1 must be replaced with a duct sensor which can be acquired as an accessory. See wiring diagram for more information. SAVE VTC 300 Installation and Service Systemair Sverige AB...

  • Page 44: Trouble Shooting

    2. Check that the screws holding the fans are tightened. Noise/vibrations 3. Check that the anti vibration lists are fitted to the mounting bracket and to the back of the unit. SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...

  • Page 45: Alarm List

    If water reheater is configured and frost protection have failed, then an extra security function is triggered when supply air temperature is lower than 5 °C and outdoor air temperature is below 0 °C. SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...
  • Page 46 “Stop defrosting” level is not Pre-heater is triggered or malfunction of allowed. pre-heater have occurred. Indicates malfunction of internal relative The alarm is displayed in the control panel. humidity sensor. SAVE VTC 300 Installation and Service Systemair Sverige AB 207232...
  • Page 47 Systemair Sverige AB reserves the right to make changes and improvements to the contents of this manual without prior notice. Systemair UAB Linų st. 101 LT–20174 Ukmergė, LITHUANIA Phone +370 340 60165 Fax +370 340 60166 www.systemair.com...

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