This product is compliant to the WEEE directive. When disposing the unit, follow your local rules
and regulations.
This product packing materials are recyclable and can be reused. Do not dispose in household
waste.
2Warnings
Danger
• Make sure that the mains supply to the unit is disconnected before performing any maintenance or
electrical work!
• All electrical connections and maintenance work must be carried out by an authorized installer and in
accordance with local rules and regulations.
Warning
Disposal and recycling |
5
• This product must only be operated by a person who has suitable knowledge or training within this field
or carried out with the supervision of a suitably qualified person.
• Beware of sharp edges during mounting and maintenance. Use protective gloves.
Warning
• All though the mains supply to the unit has been disconnected there is still risk for injury due to rotating
parts that have not come to a complete standstill.
Important
• The installation of the unit and complete ventilation system must be performed by an authorized installer
and in accordance with local rules and regulations.
• The system should operate continuously, and only be stopped for maintenance/service.
• Do not connect tumble dryers to the ventilation system.
• Duct connections/duct ends must be covered during storage and installation.
• Make sure that filters are mounted before starting the unit.
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| Type label
6
3Type 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.
Fig. 1 Type label
PositionDescription
1
2
3
4
5
6
7
Product code (product specification)
Product item number
Production order number
Serial number
Production date (YY.MM.DD)
QR code for manufacturing order (MO) number and software version
QR code for the spare parts list and documentation
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4Introduction
The SAVE VTR 150/K is a heat recovery ventilation unit with a built in rotating highly efficient heat exchanger and cooker hood. The SAVE VTR 150/K is suitable for smaller flats or houses. It supplies filtered outdoor air to residential areas
and extract air from bathroom, kitchen and wet rooms.
There are two model options, right (R) and left (L) model. Both models come with 500 W or 1000 W installed re-heater
battery. The different models are recognized by the placing of the internal components. This manual describes basic information how to operate and perform maintenance on a left (L) unit and the system it is connected to.
Note:
This document describes a left (L) model. The inside of a right (R) model is mirrored.
5Cooker hood
Danger
• Do NOT flambé beneath the cooker hood when in use.
• Sufficient air flow must be secured to the room when the cooker hood is in use
Press button A to turn on the lights.
Press button B once to open the ventilation damper when cooking. The LED indicator (C) is steadily lit.
Press button B again to force the ventilation. The LED indicator is blinking.
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AB C
Press button B a third time to close the ventilation damper. The ventilation
fan goes back to nominal speed and the LED indicator goes off.
The damper will automatically close after 60 minutes unless it is manually
closed.
No extract air will go through the cooker hood in "off" mode. Extract air from
the kitchen needs a separate air valve.
Hint: Let the damper be open a while before and after cooking to prevent
smoke from spreading in the room.
Fig. 1 Cooker hood front panel
Configuration |
6Configuration
6.1General
SAVE VTR 150/K 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.
7
6.2Startup wizard
During the first power up of the unit, you will be asked to set:
• 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.
6.3Common symbols
The following selection symbols are common and are present in most menu pages:
Back button to return to a previous
menu, located at the upper left corner
Up arrow to increase a valueCANCELButton to cancel changes
Down arrow to decrease a value
Some menus have more than one page. Touch page indicator in the top right corner to go to the next page. The first
number indicates current page number and the second number indicates a total number of pages available.
SET/OK
On and Off slider to activate or
deactivate a function. White bubble —
function is inactive, green bubble —
function is active.
Buttons to confirm changes
Many options show up in a form of the pop-up window. Select the option from the displayed list in the pop-up window
and press OK to confirm selection.
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| Configuration
8
6.4Menu overview
A.Return to home screen
B. Basic read-only information about the unit
C. Currently active alarms and alarm history
D.Configure and check week schedule
E. Check and change remaining time till filter change
F. General system preferences
G.Configuration of all system parameters
H.Help and troubleshooting menu
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6.5Home 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. Icon list of active user functions
6.5.1User modes
The first icon at the top of home screen shows currently active user mode. To change the user mode, touch the active
user mode icon (pos. 2) and select a new user mode from the list. The unit has 2 permanent and 5 temporary user
modes available for selection. Only one mode can be active at a time.
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Settings of all modes can be modified in Service menu.
Configuration |
6.5.1.1Permanent modes
Permanent modes are always active unless interrupted by temporary modes, activated user functions or alarms:
9
IconText
AUTO
MANUAL
Automatic airflow control. AUTO mode is available for selection when Demand
Control, Week Schedule and/or external fan control functions are configured,
otherwise AUTO mode icon won’t be visible in active user modes menu. AUTO
mode activates Demand Control, Week Schedule and/or external fan control
functions. Demand is available to choose as airflow setting in Week Schedule.
Manual selection of airflow levels. The unit can be set run at one out of four
available airflow speeds: Off/Low/Normal/High.
Note:
The fan can be set to OFF by activating Manual Fan Stop function in
Service menu.
Description
6.5.1.2Temporary modes
Temporary modes are active only for a set period of time unless interrupted by active user modes, activated user functions or alarms:
IconText
HOLIDAY
CROWDED
AWAY
REFRESH
FIREPLACE
Sets speed of both supply and extract air fans to Low levels when user is away
from home for a long period of time.
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.
Default temperature setpoint offset is –3 K.
Set duration in hours.
Sets speed of both supply and extract air fans to Low levels when user is away
from home for a short period of time.
ECO mode is active.
Set duration in hours.
Sets speed of both supply and extract air fans to maximum High levels to
replace indoor air with a fresh air in a short period of time.
Set duration in minutes.
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.
Description
Settings of all modes can be modified in Service menu.
Temporary modes and user functions are active only for a set period of time after which they are terminated and the
unit changes back to a former AUTO or MANUAL mode, depending on which one was active before temporary mode or
user function was activated.
Temporary modes can also be activated via digital input signal triggered by push button, presence detector, etc.
6.5.1.3Digital input functions
Digital input functions always active while digital input is activated.
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| Configuration
GB
IconText
Central
Vacuum
Cleaner
Cooker Hood
Configurable
Digital Input
1
Configurable
Digital Input
2
Configurable
Digital Input
3
Pressure
Guard
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.
Function can be activated via digital input — Central Vacuum CleanerFunction.
Sets speed of both supply and extract air fans to Maximum level to increase
airflow in the cooker hood.
Function can be activated via digital input — Cooker Hood Function.
Configurable digital input for custom user function. Airflow levels for both fans
are freely configurable.
High–priority function.
Configurable digital input for custom user function. Airflow levels for both fans
are freely configurable.
Mid–priority function.
Configurable digital input for custom user function. Airflow levels for both fans
are freely configurable.
Low–priority function.
Configurable digital input for pressure switch connection. Airflow levels for both
fans are freely configurable.
6.5.1.3.1Configurable digital inputs
Description
A custom airflow settings for supply and extract fans can be set and assigned to a digital input. Each fan can have a different airflow setting.
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.
6.5.1.4Digital input and Mode hierarchy
User modes and functions have a different hierarchy. User functions activated via HMI or mobile APP, such as AWAY,
CROWDED, FIREPLACE, HOLIDAY and REFRESH, are interrupted by manual selection of AUTO and MANUAL fan modes.
A FIREPLACE function has the highest priority between user functions. Other functions activated via HMI/APP can interrupt each other.
If FIREPLACE function is hard-wired on the connection board and configured as digital input (DI) then it has a higher
priority than AUTO and MANUAL mode. Digital input for a FIREPLACE function has also a higher priority than other
hard-wired digital inputs (DI) for: AWAY, CENTRAL VACUUM CLEANER, COOKER HOOD, CROWDED, HOLIDAY or REFRESH.
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Configuration |
11
Fig. 2 Hierarchy of user modes and digital inputs
Modes are listed from the highest to lowest priority; A — user modes that can be activated from the control panel; B —
user modes and functions activated via digital input
6.5.2Temperature settings
Temperature can be set at SET TEMPERATURE menu accessible from the home screen by touching
TEMPERATURE icon with thermometer. Default temperature value is 18°C (range 12–30°C).
Use up and down arrows or a slider to change the value.
Then touch the OK button to confirm changes.
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.
6.5.2.1ECO mode
ECO mode is a power saving function that can be activated in SET TEMPERATURE menu.
ECO mode function is available only when an internal heater is installed and configured.
While ECO mode is active, a temperature setpoint at which heater is activated is lowered to avoid activation of the heater during cold nighttime.
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| Configuration
12
If the temperature is very low and the heater is activated during the nighttime (even with lowered temperature setpoint), then during the upcoming daytime indoor temperature will be increased using the heat exchanger so that accumulated heat could be used during the next cold nighttime, the lowered setpoint for the heater remains.
GB
ECO mode will have impact for the following user
functions/modes if selected:
• AUTO mode
• MANUAL mode
• AWAY mode
• HOLIDAY mode
• CENTRAL VACUUM CLEANER function
• COOKER HOOD function
• FIREPLACE mode
ECO mode is always activated by the following modes:
• AWAY mode
• HOLIDAY mode
ECO mode is always deactivated by the following user
functions/modes:
• CROWDED mode
• REFRESH mode
• FREE COOLING function
6.5.3Airflow settings
Airflow settings are available only in MANUAL mode. Click on fan icon on the main screen to enter SET
AIRFLOW menu.
Use up and down arrows or a slider to change the airflow value.
The airflow may be adjusted in these steps: Off/Low/Normal/High. These settings control output signals to the supply and extract fans.
Important
It is not recommended to 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.
The fan can be set to Off by activating Manual Fan Stop function in Service menu.
6.5.4Indoor Air Quality
The unit automatically controls indoor humidity and/or CO2levels by adjusting airflow setting. Airflow is
increased if air quality is decreasing.
Demand Control function is responsible for IAQ (Indoor Air Quality) regulation. Relative humidity (RH) and/or CO
sors are responsible for IAQ monitoring.
Indoor air quality (IAQ) indicator is available if AUTO mode and Demand Control function is activated.
IAQ levels:
• ECONOMIC: Actual IAQ value is below low IAQ set point.
• GOOD: Actual IAQ value is between low and high IAQ limits.
• IMPROVING: Actual IAQ value is above high IAQ set point.
Different airflow settings can be set for IMPROVING and GOOD IAQ levels in Service menu.
2
sen-
Setpoint for relative humidity and CO
level can be set in Service menu.
2
6.5.5Status line
Status line located at the bottom area of home screen displays information about:
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Configuration |
13
List of active alarms. See
chapter 11.1 for more
information.
Touching any of these lines will move you to the next page with more detailed list and information about each alarm or
active user function.
List of active user functions.
See chapter 6.6 for more
information.
6.6Description of User function icons
IconText
Heating
Heat recovery
Cooling
Cooling
recovery
Connected heater or pre-heater is active and air heating is in process.
Heat recovery from apartment is active.
Connected cooler is active and air cooling is in process.
Automatic cooling recovery is active when extract air temperature from
apartment is lower than outdoor air temperature and there is a cooling demand
(temperature setpoint is lower than outdoor air temperature).
No cooling recovery with heating demand. If the outdoor air temperature is
higher than then thee indoor air temperature and there is a heating demand,
function Free heating is activated instead.
Description
Free cooling
Moisture
transfer
Defrosting
Secondary air
Vacuum
cleaner
Cooker Hood
User lock
Function decreases indoor air temperature by using only cool outdoor air during
nighttime to save energy consumption.
Function controls the rotation speed of the heat exchanger to prevent moisture
transfer to supply air due to high relative humidity in the extract air.
Function is only available for units with Rotating type heat exchanger.
Function prevents formation of the ice on the heat exchanger during cold
outdoor temperatures.
Warm air from the living space is used to defrost the heat exchanger using a
damper inside the outdoor air duct. The unit switches from outdoor air to
secondary air while the extract air fan stops and warm secondary air increases
the temperature inside the heat exchanger.
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.
Function can be activated via digital input — Central Vacuum CleanerFunction.
Always active while digital input is activated.
Sets speed of both supply and extract air fans to Maximum level to increase
airflow in the cooker hood.
Function can be activated via digital input — Cooker Hood Function.
Function indicates that the system is locked with a password and cannot be
edited or settings changed in any way. System must be unlocked first to make
changes.
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Configurable
Digital Input
1
Configurable
Digital Input
2
Configurable digital input for custom user function. Airflow levels for both fans
are freely configurable.
High–priority function.
Configurable digital input for custom user function. Airflow levels for both fans
are freely configurable.
Mid–priority function.
14
| Configuration
GB
Configurable
Digital Input
3
Pressure
Guard
Configurable digital input for custom user function. Airflow levels for both fans
are freely configurable.
Low–priority function.
Configurable digital input for pressure guard connection. Airflow levels for both
fans are freely configurable.
6.7Week Schedule
The unit can be configured to operate at set airflow levels up to two time periods (00:00–23:59) on user
selected days.
Week Schedule is active only during AUTO mode.
6.7.1Schedule 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.
6.7.2Edit schedule
Touch icon at the bottom left corner of the screen to add a new schedule or press EDIT button to modify
already added schedule.
To configure the schedule:
1. Set the time. Touch the START TIME or END TIME values to change time. Use arrow buttons
or decrease value. Confirm with OK button.
andto increase
Note:
Scheduled time can start but never end at midnight (00:00). The latest END TIME period is 23:59.
Scheduled time cannot go to the next day.
12 or 24 hour time format can be changed in System Preferences menu.
If necessary, activate second scheduled period and set up time.
2. Once time is set, click on the day(s) when schedule should be active. It is possible to set a separate schedule for each
day.
Already scheduled days are not available for selection for new schedules.
3. Confirm schedule with OK button.
Fig. 3 Week schedule example
Scheduled days are highlighted (pos. 1). First time period (pos. 2) and the second time period (pos. 3) are shown on the
right side of each schedule.
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7Cooker hood maintenance
7.1Cleaning cooker hood
Warning
There is fire hazard if the cooker hood is not cleaned within given intervals.
• The filter is to be cleaned every second month during
normal use. Clean more often during intense use.
• Clean the inside of the cooker hood at least twice a
year.
Remove the filter as shown in the image:
The metal grease filter can be cleaned in a dishwasher or
by hand using a mild detergent or liquid soap. When replacing, ensure that it is dry.
The other parts of the cooker hood are wiped with a
damp cloth and mild liquid household cleaner. Never use
abrasive cleaning materials.
Cooker hood maintenance |
Fig. 2 Remove cooker hood filter
15
8Maintenance of the unit
Maintenance of the SAVE VTR 150/K should normally be performed 3 - 4 times a year.
8.1Warnings
Danger
• Make sure that the mains supply to the unit is disconnected before performing any maintenance or
electrical work!
• All electrical connections and maintenance work must be carried out by an authorized installer and in
accordance with local rules and regulations.
Warning
• This product must only be operated by a person who has suitable knowledge or training within this field
or carried out with the supervision of a suitably qualified person.
• Beware of sharp edges during mounting and maintenance. Use protective gloves.
Warning
• All though the mains supply to the unit has been disconnected there is still risk for injury due to rotating
parts that have not come to a complete standstill.
Important
• The installation of the unit and complete ventilation system must be performed by an authorized installer
• The system should operate continuously, and only be stopped for maintenance/service.
• Do not connect tumble dryers to the ventilation system.
• Duct connections/duct ends must be covered during storage and installation.
• Make sure that filters are mounted before starting the unit.
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and in accordance with local rules and regulations.
| Maintenance of the unit
16
8.2Remove/mount the outer front
The outer front is mounted with four pins and is removed
by pushing the locking hock to the left and pulling the
front towards you.
Re-mount the outer front in reverse order.
8.3Remove/mount the inner front
The inner front is mounted with four screws. Loosen the screws and pull the
inner front towards you.
GB
Fig. 3 Remove/mount the outer front
Mount the inner front and tighten the mounting screws properly to prevent
air leakage.
Note:
When mounting the inner front, note the two guide screws at the
bottom of the inner front. These screws shall be fitted into the
two slots in the inner hatch support bracket.
8.4Changing filters
Danger
Make sure that the Mains supply to the unit is disconnected
before performing any maintenance or electrical work!
The filters are to be changed every 3–15 months, default value is 12 months.
When the filters have been changed the filter timer will reset automatically
after alarm is acknowledged.
Fig. 4 Remove/mount the inner front
The factory installed filters are of filter quality M5/ePM10 50% for the supply
air and M5/ePM10 50% for the extract air filter. The filters need to be replaced when polluted. New sets of filters can be acquired from your installer
or wholesaler.
Filter quality M5/ePM10 50% can be installed for supply air filtering.
The filter type is labelled on the top of the filter.
Fig. 5 Heat exchanger filters
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Maintenance of the unit |
8.4.1Resetting the filter time
Once filter is changed, it is necessary to reset filter time. Go to Filter menu (see 6.4 Menu overview, page 8, pos. E)
or if filter alarm is present, click on alarm status line (see 6.5 Home screen, page 8, pos. 5) and select filter alarm. Select
CHANGE FILTER, in the pop up menu define a new filter period and press OK to confirm selection.
Filter time is now reset.
8.5Checking and cleaning the heat exchanger
Danger
• Make sure that the Mains supply to the unit is disconnected before performing any maintenance or
electrical work!
Even if the required maintenance is carried out, dust will build up in the exchanger block. It is therefore of vital importance for the upkeep of a high efficiency that the exchanger block is removed from the unit and cleaned
periodically as illustrated below. Clean the heat exchanger at least every 3
years or when required.
1. Disconnect the rotor power supply and the rotor sensor. 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 containing ammonia. Rinse
using, for instance, a shower handle.
17
Warning
Ensure the rotor motor is not exposed to moisture
4. Remount the rotor. Don’t forget to reconnect the rotor power and sensor
cables.
8.6Cleaning the fans
Danger
• Make sure that the Mains supply to the unit is disconnected
before performing any maintenance or electrical work!
The motor bearings are life time lubricated and maintenance free.
Even if the required maintenance, such as changing of filters is carried out,
dust and grease may slowly build up inside the fans. This will reduce the
efficiency.
The fans may be cleaned as illustrated in below procedure.
1. Disconnect the fan power cables. The cables are found beside the fan at
the back.
2. Pull out the fans towards you. Some force may be needed.
3. Clean the fans with a cloth or a soft brush. Do not use water. White spirit
can be used to remove obstinate deposits.
Allow the fans to dry properly before remounting.
4. Remount the fans. Don’t forget to reconnect the fan power cables.
Fig. 6 Heat exchanger
Fig. 7 Extract and supply air fans
8.7Replacing rotor drive belt
If the alarm Rotor guard is raised, see chapter 11.1, the rotor drive belt may be damaged or broken.
A spare drive belt is already placed on the heat exchanger rotor and delivered with the unit.
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| Maintenance of the unit
18
GB
A
11
22
11
D
22
D
C
B
B
C
E
A
In case both welded belts break it is possible to use joint nipple as a temporarily quick repair solution until the welded
belt can be replaced with a new one. Depending of how the unit is installed, it may be not necessary to remove the
heat exchanger package in order to temporary repair a broken drive belt if the belt pulley can be accessed.
Temporary belt repair solution
1. Stop the unit by disconnecting the mains.
2. Open and remove the side cover.
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. Press the ends
firmly towards each other and tighten the nipple.
Fig. 8 Rotor drive belt
6. Pull the drive belt on to the belt pulley and rotate the exchanger by hand. Check that the belt pulley rotates.
Note:
If the drive belt slips, the drive belt may be too long and needs to be shortened. Cut the drive belt 5 mm
and go to step 5.
7. Replace and lock the side cover and connect the unit to mains.
8. Check that the alarm has ceased on the Control Display.
Note:
If the alarm remains, check the rotor sensor.
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GBDuct system maintenance
|
8.8Overheat protection reset button
If the supply air temperature is low, it can indicate that the over heat protection is triggered. The overheat protection can be reset by pressing the reset
button.
9Duct system maintenance
9.1Cleaning extract louvres and supply air diffusers
The system supplies fresh air to your home and extracts the used indoor air via the duct system and diffusers/louvres.
Diffusers and louvres are mounted in ceilings/walls in bedrooms, living room, wet rooms, WC etc. Remove diffusers
and louvres and wash in hot soapy water as required (diffusers/louvres must not be exchanged). Cleaning of diffusers/
louvres can be done as necessary.
19
9.2Checking 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.
9.3Checking 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.
9.4Checking 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. Steel ducts can be cleaned by pulling a brush
soaked in hot soapy water through the duct via diffuser/louvre openings or special inspection hatches in the duct system (if fitted).
It is recommended to do this every 5 years and is normally carried out by authorized companies specialized in this area.
10Troubleshooting
If problems should occur, please check the items below before calling your service representative.
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| Troubleshooting
20
GB
Malfunction
Fans do not start
Reduced airflow
Action
1. Check the HMI for alarms.
2. Check that all fuses and fast couplings are connected (main power supply and fast
couplings for supply and extract air fans).
3. Check that the week schedule is ON and running in AUTO mode. The week schedule
might be in OFF mode with the air flow set to OFF (chapter 6.7).
1. Check the HMI for alarms. Some alarms can reduce the airflow to LOW if active.
2. The unit could be in defrost mode. This reduces the fan speed and in some cases shuts
down the supply air fan completely during the defrosting cycle. The fans go back to
normal after finished defrosting. There should be a defrosting function icon visible in the
APP or HMI home screen if defrosting is active.
3. If the outdoor air temperature is below 0°C (Outdoor air temperature sensor (OAT)
measures < 0°C) outdoor airflow compensation function can be active (if enabled). Fan
speed (Supply or Supply/Extract air fans) is linearly reduced for decreasing outdoor air
temperature.
4. Check if temporary user mode that reduces airflow is not activated, for example AWAY,
HOLIDAY, etc. Also check digital inputs CENTRAL VACUUM CLEANER and COOKER HOOD.
5. Check setting of airflow in the HMI.
6. Check week schedule settings (chapter 6.7).
7. Check filters. Is change of filters required?
8. Check diffusers/louvres. Is cleaning of diffusers/louvres required?
9. Check fans and heat exchange block. Is cleaning required?
10.Check if the buildings air intake and roof unit (exhaust) have been clogged.
11.Check visible duct runs for damage and/or build up of dust/pollution.
12.Check diffuser/louvre openings.
The unit cannot be
controlled (control
functions are stuck)
Low supply air
temperature
Noise/vibrations
1. Reset control functions by pulling out the plug for 10 seconds.
2. Check the modular contact connection between the HMI and the main printed circuit
board.
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).
5. Check if user modes HOLIDAY, AWAY or CROWDED are activated in the HMI 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. Check if the unit has a re-heater battery connected. At very cold outdoor conditions an
electrical or water heating battery might be necessary. A re-heater battery can be
acquired as an accessory.
1. Clean fan impellers.
2. Check that the screws holding the fans are tightened.
3. Check that the anti vibration lists are fitted to the mounting bracket and to the back of
the unit.
4. Check that the rotor belt is not slipping if the unit has rotating heat exchanger.
211471 | A003, 29
GB
Alarms |
11Alarms
Press HELP button on the active alarm to access FAQ and troubleshooting (if available). Press ACKNOWLEDGE on the individual alarm to clear it. Depending on alarm type and the cause, it might be necessary to do a troubleshooting first to
acknowledge active alarm.
It may be not possible to clear the status of alarm if the cause of alarm is still present, as that would immediately trigger
alarm to return.
11.1 Alarm list
Alarm nameExplanationDo the following
Frost protection
Frost protection temperature
sensor
Defrosting error
Supply air fan rpm
Extract air fan rpm
Supply air fan control error
Extract air fan control error
Fire alarm
Frost protection of return water in
heating coil.
• Alarm stops the unit and opens
the water valve completely.
Indicates malfunction of water
heater temperature sensor.
• Alarm stops the unit.
Indicates failure of pre-heater to
preheat the incoming outdoor air (in
case Extra controller is configured as
Preheater).
• Alarm stops the unit.
Rotation speed of the supply air fan
is lower than minimum required. Fan
malfunction.
• Alarm stops the unit.
Rotation speed of the extract air fan
is lower than minimum required. Fan
malfunction.
• Alarm stops the unit.
Flow or pressure alarm for supply air.
The pressure is bellow pressure limit.
• Alarm stops the unit.
Flow or pressure alarm for extract
air. The pressure is bellow pressure
limit.
• Alarm stops the unit.
Fire alarm is active.
• Alarm stops the unit.
The alarm will reset once the water
temperature reaches 13°C.
Check the water fluid temperature in
heating coil.
Check the circulation pump of water
heater. Contact your installation
company or place of purchase.
Check that frost protection
temperature sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
Check the pre-heater reset button.
Check the pre-heater cabling.
Contact your installation company or
place of purchase.
Defrosting error may be caused by
extremely low outdoor air
temperatures or pre-heater failure.
Check quick connectors of the fan.
Contact your installation company or
place of purchase.
Check quick connectors of the fan.
Contact your installation company or
place of purchase.
Check that air tube for pressure
sensor is connected properly and
cable is not damaged.
Contact your installation company or
place of purchase.
Check that air tube for pressure
sensor is connected properly and
cable is not damaged.
Contact your installation company or
place of purchase.
Once the external Fire alarm is
disabled – alarm has to be
acknowledged and unit restarted.
21
211471 | A003, 29
| Alarms
22
Alarm nameExplanationDo the following
Emergency thermostat
Bypass damper
Rotor guard
Secondary air damper
Outdoor air temperature
sensor
Overheat temperature sensor
Supply air temperature
sensor
Room air temperature sensor
Indicates triggered overheat
protection (in case of installed
electric re-heater battery).
Indicates malfunction in bypass
damper.
Indicates a rotor malfunction.
No rotation guard signal for 180
seconds.
Secondary air defrosting failed.
Outdoor air temperature sensor
measures < 10°C in 2 sec after
defrosting
OR
Outdoor air temperature sensor
measures < 5°C in 5 min after
defrosting
Indicates outdoor air temperature
sensor malfunction.
Indicates overheat temperature
sensor malfunction.
Indicates supply air temperature
sensor malfunction.
Indicates room air temperature
sensor malfunction.
A triggered manual or automatic
overheat protection (EMT) gives an
alarm in the control panel.
In case a manual overheat protection
is triggered, reset it by pushing the
reset button.
If the automatic overheat protection
is triggered, it will reset
automatically once the temperature
has dropped.
If the problem continues contact
your installation company or place of
purchase.
Disconnect the main power supply
for 10 seconds to reset control
function.
Power up the unit, an automatic
bypass damper test will be
performed.
If the alarm occurs again after
approximately 2 minutes – contact
your installation company or place of
purchase.
If the rotating heat exchanger has
stopped. Check the rotor belt.
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.
Adjust the gap if necessary.
If the alarm persists, the rotor sensor
may be faulty. Contact your
installation company or place of
purchase.
Check if secondary air damper is in
correct position.
Check that damper is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
GB
211471 | A003, 29
GB
Alarm nameExplanationDo the following
Extract air temperature
sensor
Extra controller temperature
sensor
Efficiency temperature
sensor
PDM RH
PDM RH Extract air
temperature
Filter warning
Filter
Extra controller alarm
External stop
Manual fan stop active
Overheat temperature
Low supply air temperature
Indicates extract air temperature
sensor malfunction.
Indicates extra controller
temperature sensor malfunction.
Indicates efficiency temperature
sensor malfunction.
Indicates internal extract air
temperature sensor malfunction.
Active: measured temperature = 0°C
Returned: measured temperature >
5°C
Notification about filter change.Filter have to be replaced in one
Time for filter change.Change the filter.
Error from external device.Check if external device is connected
Unit is stopped by external signal.Operation is stopped by digital signal
Operation stopped, fans are in
manual mode and selected as OFF.
Temperature after reheater is too
high.
Active: (Overheat temperature
sensor measures > 55°C)
Returned: (Overheat temperature
sensor measures < 50°C)
Supply air temperature is too low.
Active: (Outdoor air temperature
sensor measures < 0°C) AND (Supply
air temperature sensor measures <
5°C)
Returned: (Supply air temperature
sensor measures > 10°C)
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
month time. Please acquire new
filters.
Change filter according to the
instructions in the User Manual.
Details about filter retailers can be
found in Help menu.
properly and cable is not damaged.
Reset overheat protection on
electrical pre-heater. Contact your
installation company or place of
purchase.
from external remote device or
signal from building management
system.
Select another speed of fans (LOW /
NORMAL / HIGH) or AUTO mode in
HMI home screen.
Alarm is possible if supply airflow is
too low when the reheater is
switched on.
Check the supply airflow.
Check that intake grille is not
blocked.
Check that shut off damper for
outdoor air is open in operation.
Contact your installation company or
place of purchase.
Check the heat exchanger and reheater or refer to Point 2 in
“Troubleshooting” menu.
Alarms |
23
211471 | A003, 29
| Alarms
24
Alarm nameExplanationDo the following
CO₂
External CO
sensor malfunction.Check that sensor is connected
2
properly and cable is not damaged.
In case sensor wireless – check
RS485 gateway status and sensor
status in HMI.
Contact your installation company or
place of purchase.
RH
External relative humidity sensor
malfunction.
Check that sensor is connected
properly and cable is not damaged.
In case sensor wireless – check
RS485 gateway status and sensor
status in HMI.
Contact your installation company or
place of purchase.
Output in manual mode
One or more of analogue outputs are
in manual mode.
Check Service menu for Output
settings, and check all configured
outputs to be in Auto mode. If any
outputs in Manual - change back to
Auto mode.
Alarm Fire Alarm can be only activated with a digital signal from a smoke/fire detection system or similar. Digital input has to be configured as Fire Alarm for this alarm to work.
GB
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.
Denna produkt är i överensstämmelse med direktivet om elektriskt och elektroniskt avfall. Vid
kassering av aggregatet ska lokala regler och föreskrifter följas.
Produktens förpackningsmaterial är återvinningsbart och kan återanvändas. Släng inte med
hushållsavfall.
2Varning
Fara
• Säkerställ att spänningsmatningen är bruten före underhållsarbete och elarbete.
• Arbete med elektriska anslutningar och underhåll får endast utföras av behörig personal och i enlighet
med gällande krav och föreskrifter.
Varning
Avfallshantering och återvinning |
29
• Denna produkt får endast användas av en person som har lämplig kunskap eller utbildning inom detta
område eller står under överinseende av en person med lämpliga kvalifikationer.
• Se upp för vassa kanter vid installation och underhåll. Använd skyddshandskar.
Varning
• Det dröjer något innan alla rörliga delar stannat helt efter att aggregatet kopplats bort från elnätet – risk
för personskada.
Viktigt
• Aggregatet och hela ventilationssystemet ska installeras av behörig personal och i enlighet med gällande
krav och föreskrifter.
• Systemet bör ständigt vara i gång och får bara stoppas vid underhåll/service.
• Anslut inte torktumlare till ventilationssystemet.
• Kanalanslutningar/kanaländar ska vara täckta vid förvaring och installation.
• Kontrollera att alla filter är monterade innan du startar aggregatet.
2114711 | A003, 29
| Märkskylt
30
3Märkskylt
Ha aggregatets huvuddata och tillverkningsnummer till hands när du kontaktar servicetekniker. Uppgifterna finns på
märkskylten på aggregatets sida, nära de externa anslutningarna.
Fig. 1 Märkskylt
SV
Position
1
2
3
4Serienummer
5
6
7
Beskrivning
Produktkod (produktspecifikation)
Artikelnummer för produkten
Produktionsordernummer
Tillverkningsdatum (ÅÅ.MM.DD)
QR kod för tillverkningsorder (MO) nummer och version av programvara
QR kod för reservdelslista och dokumentation
4Inledning
SAVE VTR 150/K är ett ventilationsaggregat med värmeåtervinningsfunktion med högeffektiv inbyggd roterande värmeväxlare och köksfläkt. SAVE VTR 150/K är lämplig för mindre lägenheter och småhus. Aggregatet förser bostadsutrymmen med filtrerad uteluft och evakuerar frånluft från kök och från badrum och andra våtrum.
Aggregatet finns i vänsterutförande (L) och högerutförande (R). Båda utförandena finns med monterat eftervärmningsbatteri på 500 W eller 1000 W . De olika modellerna känns igen på placeringen av de interna komponenterna. Den här
instruktionsboken innehåller grundläggande information om användning och underhåll av ett aggregat i vänsterutförande (L) och det system det är anslutet till.
Obs!
I handboken beskrivs vänsterutförandet (L). Högerutförandet (R) är invändigt en spegelvändning av
vänsterutförandet.
5Köksfläkt
Fara
• Flambera INTE under köksfläkten när den används.
• Tillräckligt luftflöde måste säkerställas till rummet medan köksfläkten används.
Tryck på knapp A för att tända lamporna.
Tryck på knapp B en gång för att öppna ventilationsspjället under matlagning. Indikatorn (C) lyser med fast sken.
Tryck på knapp B igen för att forcera ventilationen. Indikatorn blinkar.
2114711 | A003, 29
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