SAVE VTR 250/B User Manual Document in original language | 254495 · v01 GB
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Contents 1 2 3 4 Overview ......................................................1 1.1 General Description ................................1 1.2 Warranty ..............................................1 1.3 Type label.............................................1 Warnings.......................................................1 Operation ......................................................2 3.1 SAVE LIGHT control panel .........................2 3.1.1 Indicators .................................2 3.1.
Overview | 1 Overview 1.1 General Description This manual describes basic information how to operate and perform maintenance on the unit and the system it is connected 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 www.systemair.com. 1.
2 | Operation Warning • This product is not intended to be used by children or people with reduced physical or mental ability or lack of experience and knowledge, if no instruction concerning the use has been given by the person responsible for their safety or that this person is supervising the operation. Children should be supervised so that they can not play with the product. • Beware of sharp edges during mounting and maintenance. Use protective gloves.
Operation | Off The fan can be set to Off by activating Manual Fan Stop function in Service menu. Low (Minimum) Normal High Fan speed – 25% Fan speed – 45% Fan speed – 70% Refresh (Maximum) Auto — flashing slowly Sets speed of both supply and extract air fans to Maximum levels to replace indoor air with a fresh air in a short period of time. The unit returns to previously active mode after 1 hour when in the Refresh mode. Automatic airflow control.
4 | Operation SAVE CONNECT solution (mobile application and Internet access module) has a similar menu structure and functionality as SAVE TOUCH control panel, so this section can also be used as a guide for the mobile application. 3.2.1 Common symbols The following selection symbols are common and are present in most menu pages: On and Off slider to activate or deactivate a function. White bubble — function is inactive, green bubble — function is active.
Operation | Touch HELP button to know more about the alarm. To clear the alarm, touch ACKNOWLEDGE button. Note: The underlying cause of the alarm must be resolved first otherwise the alarm will appear again. If the problem continues contact your installation company or place of purchase. 3.2.4 Quick Information screen Quick information screen can be shown instead of a sleep mode screen. Quick information screen shows the following information: 1. Time 2. Outdoor temperature 3.
6 | Operation Duration have to be set for temporary user modes. SAVE VTR 250/B will return to its previous working mode after the set time expires. Note: AUTO mode is available for selection only if the optional Demand Control, Week Schedule and/or external fan control functions are activated. 3.2.5.1 Permanent modes Permanent modes are always active unless interrupted by temporary modes, activated user functions or alarms: Icon Text Description Auto Automatic airflow control.
Operation | Icon Text Description Refresh Sets speed of both supply and extract air fans to Maximum levels to replace indoor air with a fresh air in a short period of time. Set duration in minutes. Fireplace 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 smoke extraction through the chimney. Set duration in minutes. Settings of all modes can be modified in Service menu. 3.2.
8 | Operation 3.2.8 To set a week schedule While in home screen, touch menu icon and select Week Schedule. The menu is locked by default. Enter a password (default password is 1111). Touch icon at the bottom left corner of the screen to add a new schedule or press EDIT button to modify already added schedule. Touch the slider to the right to activate scheduled period. Set the time. Touch the START TIME or END TIME values to change time. Use arrow buttons decrease value. Confirm with OK button.
Maintenance | 3.2.8.1 To schedule airflow settings Touch settings icon to go to SCHEDULE AIRFLOW SETTINGS menu. In this menu set airflow level for scheduled and unscheduled periods. Available levels: Off, Low, Normal, High or Demand. Set temperature setpoint offset for both periods (-10°C – 0°C). Demand level is available only if Demand Control or External fan function is active.
10 | Maintenance 1 Stop the unit by disconnecting the mains. 2 Open the front hatch. See chapter 4.2. 3 To remove the supply air filter loosen the knobs to remove the filter lock (image shows when filter is hidden). Only one of the filter locks needs to be removed. 4 Wiggle the filter and pull it out. 5 Insert the new filters. Make sure that the correct filter types are inserted. 6 Close and lock the front hatch and connect the unit to mains. 7 Reset the filter time. See chapter 4.3.1. 4.3.
Maintenance | 4.3.2 To select a different filter kit Standard filters are designed for good outdoor air quality. It is possible to select and order filter kits for poorer air quality environment. To change filter kit type 1. Touch Select different filter kit button in the alarm menu. Alternatively, go to Filter menu (3.2.2 Home screen overview, page 4, pos. E). 2. Select filter kit from the list. 3. Touch OK button. 4.
12 | Maintenance 4.5 To clean fans Danger • Make sure that the mains supply to the unit is disconnected before performing any maintenance or electrical work! Warning • Risk of injury due to rotating parts that have not come to a complete standstill after mains supply to the unit have been disconnected. Warning • Beware of sharp edges during mounting and maintenance. Use protective gloves. The motor bearings are life time lubricated and maintenance free.
Maintenance | 4.6.1.1 Heat exchanger mounted 1. Stop the unit by disconnecting the mains. 2. Open the front hatch. 3. Remove the broken drive belt. 4. Use tape to attach the drive belt to the rotating heat exchanger, and rotate the exchanger by hand to get hold of the drive belt. 5. Remove the tape and put the ”empty” end on to the nipple. 6. Press the drive-belt ends firmly towards each other to secure the nipple. 7. Pull the drive belt on to the belt pulley and rotate the exchanger by hand.
14 | Troubleshooting 4.7.2 Checking the outdoor air intake Leaves and pollution could plug up the air intake grille and reduce the capacity. Check the air intake grille, and clean as necessary. It is recommended to do this at least twice a year. 4.7.3 Checking the roof cowl (if fitted) The roof cowl (if fitted) connected to the exhaust air duct needs to be checked at least twice a year and cleaned if necessary. 4.7.
Electrical data | 5. Check if user modes Holiday, Away or Crowded are activated on the control panel or via a hardwired switch. 6. Check the analogue inputs in the service menu to verify that the temperature sensors are functioning correctly. 7. In case of installed electrical/other re-heater battery: Check if the overheat protection thermostat is still active. If necessary, reset by pressing the red button on the front plate of the electrical re-heater. 8. Check if the extract filter must be changed. 9.
Phone +370 340 60165 Fax +370 340 60166 www.systemair.com SAVE VTR 250/B · User Manual · 254495 · en_GB · 2021-03-22 · v01 Systemair UAB Linų st.
