Overview | Overview General Description This manual describes basic information how to operate and perform maintenance on the unit and the system it is con- nected to. Read the instructions carefully and in its entirety. For description of advanced settings and installation of accessories see Service and Accessories Installation manual. All documents can be found in our online catalogue at .
| Overview • 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. • The system should operate continuously, and only be stopped for maintenance/service. •...
Heat recovery ventilation unit: VTR 100/B LITE (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).
| Configuration Configuration Control panel Connect the unit electrically to the mains with the enclosed plug and check that it starts up correctly. The control panel is used to make the necessary adjustments. An external control panel can be connected on the top of the unit. The illustration below shows the control panel with a short description.
Configuration | 2.1.1 Display symbols Symbol Description Explanation Temp Illustrates the current set-point for supply air temperature (from completely empty to filled symbol). Turn the SELECTION knob to choose temperature. Press ENTER to save the setting. 19 °C Temp Airflow Illustrates the current airflow.
| Configuration 19 °C Temp An unfilled temperature symbol will activate manual summer mode. See chapter 2.5 Manual setting of airflow It is possible, at any time, to manually set the airflow in the main menu display. By choosing the fan symbol and con- firming, it is possible to increase or decrease the airflow in 5 steps: Off, Low, Nom, High and Auto.
Maintenance | 7. Set which airflow the fan is supposed to be running in Airflow the ON level, choose between Low, Nom, High or Auto. Set which airflow the fan is supposed to be running in On level: low/nom/high/auto the OFF level, choose between OFF, Low, Nom or High. Off level: off/low/nom/high Note: If an electrical re-heater battery is installed and...
| Maintenance 1 year 3 years Task 6 months When necessary Heat exchanger cleaning Belt replacement Checking and cleaning louvres/ diffusers Checking and cleaning outdoor air intake Checking and cleaning roof cowl (if fitted) Cleaning of duct system 1. It is recommended to do this every 5 years and is normally carried out by authorized companies specialized in this area. •...
Maintenance | When it’s time to change the filters an alarm is shown on the control panel display. When this occurs do the following: 1. Stop the unit by disconnecting the mains. 2. Open the front hatch. See chapter 3.2. 3.
| Maintenance 1 Disconnect the rotor power supply and the rotor sen- sor. The cables are found beside the rotor at the back. 2 Pull out the rotor towards you. Some force may be needed. 3 Clean the rotor. Wash in hot soapy water. Do not use detergent con- taining ammonia.
Trouble shooting | 3.6.4 Checking and cleaning the duct system Dust and grease deposits may build up in the duct system, even if required maintenance such as changing of filters is being carried out. This will reduce the efficiency of the installation. The duct runs should therefore be cleaned/changed when necessary.
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| Trouble shooting Alarm Explanation Do the following Low SS Indicates low supply air temperature The alarm is displayed in the control panel. 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.
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