SAVE VSR 300/500
Installation and Service
Document in original language | 211458 · A002
GB
© Copyright Systemair UAB
All rights reserved
E&OE
Systemair UAB reserves the rights to change 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 the warranty if these instructions are not adhered to during installation or service.
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Contents
1
2
3
4
5
6
7
8
Declaration of Conformity .................................1
Disposal and recycling ......................................2
Warnings.......................................................2
About this document........................................2
Product information .........................................2
5.1
General ................................................2
5.2
Installation recommendation regarding
condensation ........................................3
5.2.1
Condensation inside of the
unit .........................................3
5.2.2
Condensation outside of the
unit .........................................3
5.3
Transport and storage .............................3
5.4
Technical Data .......................................4
5.4.1
Dimensions and Weight of
VSR 300 ...................................4
5.4.2
Dimensions and Weight of
VSR 500 ...................................5
5.4.3
Duct connections........................5
5.4.4
Power consumption and fuse
size .........................................5
Installation.....................................................6
6.1
Unpacking ............................................6
6.2
Where/how to install ..............................6
6.3
Installation procedure..............................6
6.4
Condensation drainage ............................7
Electrical connections .......................................7
7.1
Main board layout ..................................8
7.2
External connections (Connection
board) .................................................9
SAVECair control ........................................... 10
8.1
General .............................................. 10
8.2
Startup wizard ..................................... 10
8.3
Common symbols................................. 10
8.4
Menu overview ................................... 11
8.5
Home screen....................................... 12
8.5.1
User modes ............................ 12
8.5.2
Temperature settings ................ 14
8.5.3
Airflow settings ....................... 14
8.5.4
Indoor Air Quality ..................... 15
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8.5.5
Status line .............................. 15
Description of User function icons ............ 15
Main menu ......................................... 16
8.7.1
Unit Information ................ 16
8.7.2
Alarms ................................. 17
8.7.3
Week Schedule...................... 20
8.7.4
Filter ................................. 21
8.7.5
System Preferences............. 22
8.7.6
Service ............................... 22
8.7.7
Help ..................................... 28
9 Service ....................................................... 29
9.1
Warnings............................................ 29
9.2
Internal components ............................. 30
9.2.1
Component descriptions ............ 30
9.3
Replacing rotor drive belt ....................... 32
9.4
Troubleshooting ................................... 32
10 Accessories.................................................. 34
10.1 Internet Access Module (IAM) ................. 34
10.1.1 Mobile application and
Login ..................................... 34
10.2 Indoor air quality sensors ....................... 34
10.3 Temperature control ............................. 36
10.3.1 Electrical duct preheater ................................... 36
10.3.2 Duct water heater .................... 37
10.3.3 Duct water cooler..................... 38
10.3.4 Change-over coil (DX) ............... 39
10.4 Airflow control..................................... 41
10.4.1 VAV/CAV conversion kit............. 41
10.5 Installation/Maintenance ....................... 42
10.5.1 Outdoor/Exhaust air
dampers................................. 42
10.6 Filters ................................................ 43
10.7 Passive House function.......................... 43
8.6
8.7
Declaration of Conformity |
1
Declaration of Conformity
Manufacturer
Systemair UAB
Linų st. 101
LT–20174 Ukmergė, LITHUANIA
Office: +370 340 60165 Fax: +370 340 60166
www.systemair.com
hereby confirms that the following product:
Heat recovery ventilation unit: SAVE VSR 300/500
(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).
Comply with all applicable requirements in the following directives:
• Machinery Directive 2006/42/EC
• Low Voltage Directive 2014/35/EU
• EMC Directive 2014/30/EU
• Ecodesign Directive 2009/125/EC
The following regulations are applied in applicable parts:
1253/2014
Requirements for ventilation units
1254/2014
Energy labelling of residential ventilation units
327/2011
Requirements for fans above 125 W
The following harmonized standards are applied in applicable parts:
EN ISO 12100:2010
Safety of machinery - General principles for design - Risk assessment and risk reduction
EN 13857
Safety of machinery – Safety distances to prevent hazard zones being reached by upper or
lower limbs
EN 60 335-1
Household and similar electrical appliances – Safety Part 1: General requirements
EN 60 335-2-40
Safety of household and similar electrical appliances – Part 2-40: Particular requirements
for electrical heat pumps, air-conditioners and dehumidifiers
EN 62233
Measurement methods for electromagnetic fields of household appliances and similar
apparatus with regard to human exposure
EN 50 106:2007
Safety of household and similar appliances – Particular rules for routine tests referring to
appliances under the scope of EN 60 335-1 and EN 60967
EN 61000-6-2
Electromagnetic compatibility (EMC) – Part 6-2: Generic standards – Immunity for industrial
environments
EN 61000-6-3
Electromagnetic compatibility (EMC) – Part 6-3: Generic standards – Emission standards for
residential, commercial and light-industrial environments
Skinnskatteberg, 10-08-2017
Mats Sándor
Technical Director
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| Disposal and recycling
2
Disposal and recycling
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.
3
Warnings
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
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.
4
About this document
This installation manual concerns air handling unit type SAVE VSR 300/500 manufactured by Systemair.
The manual consists of basic information and recommendations concerning the design, installation, start-up and operation, to ensure a proper fail-free operation of the unit.
The key to proper and safe operating of the unit is to read this manual thoroughly, use the unit according to given
guidelines and adhere to all safety requirements.
5
Product information
5.1
General
The SAVE VSR 300/500 is a heat recovery ventilation unit, with a built in rotary heat exchanger. The SAVE VSR 300/
500 is suitable for houses with up to 240/360 m2 heated living area.
The SAVE VSR 300/500 supplies filtered outdoor air to residential areas and extract air from bathroom, kitchen and wet
rooms.
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5.2
Installation recommendation regarding condensation
5.2.1
Condensation inside of the unit
When the unit is installed in a cold attic (close to outdoor temperature) the unit should run continuously. If the unit is intended to be stopped by the user manually or due to calendar function we recommend to install air tight dampers at extract and supply air ducts. The dampers will ensure that no air circulates from the warm parts of the building through
the unit to outside (chimney effect). If no dampers are installed there is risk of condensation inside the unit and the outdoor ducts during these stop periods. It also might be that cold air from outside could pass the unit and enter into the
building. That could cause condensation outside the supply and extract air ducts and even at the valves in the rooms.
When the unit is not running due to late commissioning in winter time, the supply and extract air ducts should be disconnected and closed due to above mentioned effects until commissioning and regular operation.
5.2.2
Condensation outside of the unit
When the unit is installed in warm humid areas (like laundry) together with low outdoor temperature there is a certain
point where moisture can condense outside of the casing. The condensation relation to indoor relative humidity, room
and outdoor temperature is shown diagram below. The condensation outside of the unit do not occur in zones bellow
each curve.
Important
Recommendation: If condensation occurs, increase ventilation in area close to the unit.
1. Room temperature 20°C
2. Room temperature 22°C
3. Room temperature 24°C
4. Room temperature 26°C
Examples when condensation outside of the unit can occur:
Example A: If the unit is installed in room where temperature is 22°C, outside temperature is –15°C, then dew will start
accumulating when relative humidity is 46% and higher.
Example B: If the unit is installed in room where temperature is 20°C, outside temperature is –25°C, then dew will start
accumulating when relative humidity is 34% and higher.
5.3
Transport and storage
The SAVE VSR 300/500 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.
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| Product information
The appliance is delivered in one piece containing all necessary components, wrapped in plastic on a pallet for easy
transportation.
5.4
Technical Data
5.4.1
Dimensions and Weight of VSR 300
Fig. 1 Dimensions of VSR 300
* Drainage
The unit weight is 61 kg.
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5.4.2
Dimensions and Weight of VSR 500
Fig. 2 Dimensions of VSR 500
* Drainage
The unit weight is 72 kg.
5.4.3
Duct connections
Fig. 3 Duct connections
Symbol
5.4.4
Description
Symbol
Description
Supply air
Outdoor air
Exhaust air
Extract air
Power consumption and fuse size
SAVE VSR 300/500 come with 1670 Winstalled re-heater battery.
Model
Re-heater
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VSR300
VSR500
1670 W
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| Installation
Fans
166 W
338 W
Total power consumption
1836 W
2008 W
10 A
13 A
Fuse
6
Installation
This section describes how to install the unit correctly. To ensure a proper and fail-free operation, it is important that
the unit is installed according to these instructions.
6.1
Unpacking
Verify that all ordered equipment are delivered before starting the installation. Any discrepancies from the ordered
equipment must be reported to the supplier of Systemair products.
6.2
Where/how to install
The SAVE VSR 300/500 should preferably be installed in a separate room (e.g. storeroom, laundry room or similar.), but
can also be installed in the loft space.
When choosing the installation position, consideration must be taken that the unit requires regular maintenance. Flooring boards must be mounted up to and under the unit. Light and mains supply should be installed. Leave free space for
removing of inspection doors and for taking out main components inside the unit.
The SAVE VSR 300/500 are supplied with approximately 1 m cable and plug for 230V, single phase earthed connection.
Recommended installation location for the outdoor air intake is the northern or eastern side of the building and with a
distance to openings for discharge of stale ventilation air, kitchen ventilator, central vacuum system, waist water drainage and other pollution sources like exhaust from traffic etc. Stale discharge air should ideally be led via a roof unit to
the outside and with a good distance to any outdoor air intake, windows etc.
Note:
If the passage to the installation location is narrow, remove the side covers and the side cover support
brackets.
6.3
Installation procedure
A. Upright installation on the floor. Left and right connections are possible.
The enclosed self adhesive vibration dampers must be used.
B. Ceiling installation. Left and right connections are possible.
A ceiling mounting kit is required. Not delivered with the unit. Needs to be ordered separately.
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Electrical connections |
C. Upside down installation is NOT allowed.
1. Make sure that the surface is flat and horizontal and that it supports the weight of the unit. Perform the installation in
accordance with local rules and regulations.
2. Fit the enclosed self adhesive vibration dampers on the unit.
Mount according to the enclosed Vibration Damper Quick Guide.
3. Lift the unit in place
Warning
Beware of sharp edges during mounting and maintenance. Use protective gloves.
Consider the unit weight when mounting!
4. Connect the unit to the duct system. Make sure that all necessary accessories are used to create a functional ventilation solution.
Warning
The installation of the unit and complete ventilation system must be performed by an authorized installer
and in accordance with local rules and regulations.
Note:
The unit may not be installed with the electrical connection box facing downward due to the fact that the
heat from the re-heater is rising in the unit!
6.4
Condensation drainage
In general no condensation drainage is needed for rotational heat exchangers at dry conditions. However, if a lot of humid air is present in the residence, a condensation drainage might be needed. Drainage connection is available as an accessory and can be ordered separately.
Note:
The drainage connection is plugged in the bottom of the unit at delivery. To use the drainage: elevate the
unit from the floor, remove the rubber seal and connect the water hose. Connect the water hose to the
sewer. The water can not be led straight to the sewer without a water trap.
7
Electrical connections
The SAVE VSR 300/500 is wired internally from factory.
The electrical connection box is on top of the unit behind a cover plate.
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| Electrical connections
1. Main print card
7.1
Main board layout
The SAVE VSR 300/500 is equipped with built-in regulation and internal wiring.
The figure shows the main circuit board. See wiring diagram for more information.
Fig. 4 Main circuit board connections
Position
Description
MB
Main circuit board
CB
Connection to the external connection box
1
Terminals for a heater
2
Terminals for a TRIAC
3
Terminals for the mains power supply
4
Terminals for power supply of extract air fan
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Position
Description
5
Terminals for power supply of supply air fan
6
Terminals for internal relative humidity/temperature sensor
7
Analog input 1 — Outdoor air sensor
8
Analog input 2 — Supply air sensor
9
Analog input 3 — Freely configurable
10
Analog input 4 — Freely configurable / Overheat temperature sensor (units with
heater)
11
Analog input 5 — Freely configurable
12
Digital input 1 — Rotor guard sensor (VSR, VTR units)/ Damper signal (VTC units)
13
Digital input 2 — Freely configurable / Cooker hood (VTR 150/K unit)
14
Analog output 2 — Freely configurable / Electrical heater controller (VTC 700 unit)
15
Analog output 1 — Rotor of the heat exchanger (VSR, VTR units) / Damper control
(VTC units)
16
Terminals for speed control of extract air fan
17
Terminals for speed control of supply air fan
7.2
External connections (Connection board)
External connections to the main circuit board are done via connection board situated outside of the unit.
Fig. 5 External connection box and board
Position
Description
1
Connection to the main circuit board
2
Connection for external control panel (HMI) or Internet access module (IAM)
3
Modbus RS485 connection
AI6–7
Freely configurable Analog input. None/Input type selection in HMI.
DO1–4
Freely configurable Digital output. None/Output type selection in HMI.
AO3–5
Freely configurable Analog output. None/Output type selection in HMI. Actuator type 0–10V, 10–
0V, 2–10V, 10–2V.
UI1–5
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).
24V
Maximum current 200mA at 24VDC +-10%.
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| SAVECair control
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SAVECair control
8.1
General
SAVECair is 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.
8.2
Startup wizard
During the first power up of the unit, you will be asked to set:
• menu language
• time and date
• airflow control type (Manual/RPM) and airflow level values
• heater type (None/Electrical/Water/Change-over)
If the start-up wizard is cancelled it will start again during next power up of the unit, this will continue until start-up wizard is successfully finished.
8.3
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.
Back button to return to a previous
menu, located at the upper left corner
Up arrow to increase a value
CANCEL
Button to cancel changes
Down arrow to decrease a value
SET/OK
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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8.4
Menu 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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8.5
Home screen
Touching home icon (pos. A) in dropdown 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
8.5.1
User 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.
Settings of all modes can be modified in Service menu.
8.5.1.1 Permanent modes
Permanent modes are always active unless interrupted by temporary modes, activated user functions or alarms:
Icon
Text
Description
AUTO
Automatic airflow control. 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.
MANUAL
Note:
The fan can be set to OFF by activating Manual Fan Stop function in
Service menu.
8.5.1.2 Temporary modes
Temporary modes are active only for a set period of time unless interrupted by active user modes, activated user functions or alarms:
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Icon
Text
Description
HOLIDAY
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.
Delay in days.
CROWDED
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.
Delay in hours.
AWAY
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.
Delay in hours.
REFRESH
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.
Delay 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.
Delay in minutes.
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.
8.5.1.3 Digital input functions
Digital input functions always active while digital input is activated.
Icon
Text
Description
Central
Vacuum
Cleaner
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 Cleaner
Function.
Cooker Hood
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 airborne grease and steam
collection in the kitchen.
Function can be activated via digital input — Cooker Hood Function.
8.5.1.4 Digital 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.
Digital input and Mode hierarchy:
1. EXTERNAL STOP
2. FIREPLACE function
3. COOKER HOOD, CENTRAL VACUUM CLEANER, CROWDED, REFRESH functions
4. AWAY, CROWDED functions
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8.5.2
Temperature 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 SET 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.
8.5.2.1 ECO mode
ECO mode is a power saving function that can be activated in SET TEMPERATURE menu.
While ECO mode is active, a temperature setpoint at which heater is activated is lowered to avoid activation of the heater during cold nighttime.
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.
ECO mode will have impact for the following user
functions/modes if selected:
ECO mode is always activated by the following modes:
• AUTO mode
• AWAY mode
• MANUAL mode
• HOLIDAY mode
• AWAY mode
ECO mode is always deactivated by the following user
functions/modes:
• HOLIDAY mode
• CENTRAL VACUUM CLEANER function
• CROWDED mode
• COOKER HOOD function
• REFRESH mode
• FIREPLACE mode
• FREE COOLING function
8.5.3
Airflow 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.
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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.
8.5.4
Indoor Air Quality
The unit automatically controls indoor humidity and/or CO2 levels 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 CO2 sensors 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.
Setpoint for relative humidity and CO2 level can be set in Service menu.
8.5.5
Status line
Status line located at the bottom area of home screen displays information about:
List of active alarms. See
chapter 8.7.2.3 for more
information.
List of active user functions.
See chapter 8.6 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.
8.6
Description of User function icons
Icon
Text
Heating
Heat recovery
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Description
Connected heater or pre-heater is active and air heating is in process.
Heat recovery from apartment is active.
Cooling
Connected cooler is active and air cooling is in process.
Cooling
recovery
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.
Free cooling
Function decreases indoor air temperature by using only cool outdoor air during
nighttime to save energy consumption.
Moisture
transfer
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.
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Icon
8.7
Text
Description
Defrosting
Function prevents formation of the ice on the heat exchanger during cold
outdoor temperatures.
Secondary air
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.
Vacuum
cleaner
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 Cleaner
Function.
Always active while digital input is activated.
Cooker hood
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 airborne grease and steam
collection in the kitchen.
If a cooker hood with integrated fan is used, then it is recommended to set
airflow levels of both fans to Normal.
Function can be activated via digital input — Cooker Hood Function.
Always active while digital input is activated.
User lock
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.
Main menu
User settings and advanced settings
8.7.1
Unit Information
A basic read-only information about status of the unit, configured components and inputs/outputs.
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8.7.1.1 Components
Type and settings of heat exchanger, heater, cooler, extra controller.
8.7.1.2 Sensors
Values from sensors and load of fans (rpm).
8.7.1.3 Input Status
Status of configured analog, digital and universal inputs. Connected component type and raw value (volts) is displayed.
8.7.1.4 Output Status
Status of configured analog, digital and universal outputs. Connected component type and value (volts) is displayed.
8.7.1.5 Unit Version
Unit model name, manufacturer number, serial number and unit software versions for Mainboard, HMI and IAM.
8.7.2
Alarms
A detailed information about active system alarms and alarm log of last 20 events.
8.7.2.1 Active Alarms
Alarm screen is empty if there are no active or logged alarms.
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.
8.7.2.2 Alarms log
Alarm log allows to view last 20 alarms.
Each alarm contains information:
• Alarm name
• Date/time stamp
• Information if the alarm stops the unit or other note
8.7.2.3 Alarm list
Alarm name
Explanation
Do the following
Frost protection
Frost protection of return water in
heating coil.
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.
• Alarm stops the unit and opens
the water valve completely.
Frost protection temperature
sensor
Indicates malfunction of water
heater temperature sensor.
• Alarm stops the unit.
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Check that frost protection
temperature sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
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Alarm name
Explanation
Do the following
Defrosting error
Indicates failure of pre-heater to
preheat the incoming outdoor air (in
case Extra controller is configured as
Preheater).
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.
• Alarm stops the unit.
Supply air fan rpm
Rotation speed of the supply air fan
is lower than minimum required. Fan
malfunction.
Check quick connectors of the fan.
Contact your installation company or
place of purchase.
• Alarm stops the unit.
Extract air fan rpm
Rotation speed of the extract air fan
is lower than minimum required. Fan
malfunction.
Check quick connectors of the fan.
Contact your installation company or
place of purchase.
• Alarm stops the unit.
Supply air fan control error
Flow or pressure alarm for supply air.
The pressure is bellow pressure limit.
• Alarm stops the unit.
Extract air fan control error
Flow or pressure alarm for extract
air. The pressure is bellow pressure
limit.
• Alarm stops the unit.
Fire alarm
Fire alarm is active.
• Alarm stops the unit.
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.
Emergency thermostat
Indicates triggered overheat
protection (in case of installed
electric re-heater battery).
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.
Bypass damper
Indicates malfunction in bypass
damper.
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.
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Alarm name
Explanation
Do the following
Rotor guard
Indicates a rotor malfunction.
No rotation guard signal for 180
seconds.
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.
Secondary air damper
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
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.
Outdoor air temperature
sensor
Indicates outdoor air temperature
sensor malfunction.
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
Overheat temperature sensor
Indicates overheat temperature
sensor malfunction.
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
Supply air temperature
sensor
Indicates supply air temperature
sensor malfunction.
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
Room air temperature sensor
Indicates room air temperature
sensor malfunction.
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
Extract air temperature
sensor
Indicates extract air temperature
sensor malfunction.
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
Extra controller temperature
sensor
Indicates extra controller
temperature sensor malfunction.
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
Efficiency temperature
sensor
Indicates efficiency temperature
sensor malfunction.
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
PDM RH
Indicates internal relative humidity
sensor malfunction.
Active: measured humidity = 0%
Returned: measured humidity > 5%
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
PDM RH Extract air
temperature
Indicates internal extract air
temperature sensor malfunction.
Active: measured temperature = 0°C
Returned: measured temperature >
5°C
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
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Alarm name
Explanation
Do the following
Filter
Time for filter change.
Change the filter.
Change filter according to the
instructions in the User Manual.
Details about filter retailers can be
found in Help menu.
Extra controller alarm
Error from external device.
Check if external device is connected
properly and cable is not damaged.
Reset overheat protection on
electrical pre-heater. Contact your
installation company or place of
purchase.
External stop
Unit is stopped by external signal.
Operation is stopped by digital signal
from external remote device or
signal from building management
system.
Manual fan stop active
Operation stopped, fans are in
manual mode and selected as OFF.
Select another speed of fans (LOW /
NORMAL / HIGH) or AUTO mode in
HMI home screen.
Overheat temperature
Temperature after reheater is too
high.
Active: (Overheat temperature
sensor measures > 55°C)
Returned: (Overheat temperature
sensor measures < 50°C)
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.
Low supply air temperature
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 the heat exchanger and reheater or refer to Point 2 in
“Troubleshooting” menu.
CO₂
External CO2 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.
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.
8.7.3
Week Schedule
The unit can be configured to operate at set airflow levels up to two time periods (00:00–23:59) on user
selected days.
Week Schedule is active only during AUTO mode.
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8.7.3.1 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.
8.7.3.2 Edit 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.
and
to 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.
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. 6 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.
Scheduled time period is displayed in blue colour on the clock (pos. 4).
8.7.4
Filter
In this menu the remaining time until filter change is displayed. Editing is locked with a password, use
administrator password. See Password Settings in Service menu for more information.
Set duration of the filter until next change for period of 3–15 months in steps of 1 month. Default setting is 12 months.
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.
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8.7.5
System Preferences
Configuration of unit location, language and time.
Change the following information:
• Language (default language is English)
• Country (default country is UK)
• Unit address (address, post code)
• Unit date and time, activate or deactivate summer/winter time switch.
Time will automatically change between summertime and wintertime according to European standard, based on
Greenwich time zone and set unit location.
Switch between 12 and 24 hours time format.
• Contact information: contractor, installer, service, phone, website, e-mail, etc.
• Display settings: screen brightness and screen behavior in standby mode.
8.7.6
Service
All unit parameters and settings can be changed in the Service menu.
The Service menu is locked by default and it is necessary to enter a password (default
password is 1111).
8.7.6.1 Input
Configuration of inputs
Settings for analog, digital and universal input terminals on the main board, configuration of functionality.
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.
Digital inputs are restricted by signal type and physical number of connections. An input function is only allowed to be
used once.
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. Universal analog inputs (UAI) have only selections for RH Sensor (RH), CO₂
Sensor (CO₂), Supply Air Fan Control (SAFC) and Extract Air Fan Control (EAFC) wired configurations.
Analog input (AI) temperature sensors are not allowed to be configured more than once.
Already used and configured input signal type is greyed out and not available for selection. However some user functions related to configuration of digital input (AWAY, CROWDED, FIREPLACE, HOLIDAY or REFRESH) have several possible activation points, via HMI/APP/Wireless/Modbus (BMS).
Digital inputs can be configured to be normally open (Normally Open (NO)) or normally closed (Normally Closed
(NC)). Default setting is Normally Open (NO). Not available for wireless inputs.
PDM (pulse density modulation) input for relative humidity (RH) sensor on the main board is pre-adressed and cannot
be changed.
Table 1 Overview of input configuration
Analog inputs
Digital inputs
Universal analog inputs
Universal digital inputs
Input type
Value
Compensation
Input type
Polarity
Value
Input type
Analog type
Value
Input type
Digital type
Polarity
Value
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8.7.6.2 Output
Configuration of outputs.
Settings for analog, digital and universal output terminals on the main board and connection board, configuration of
functionality.
Fan output PWM (Pulse-width modulation) signal and triac output are already pre-addressed to specific terminals and
cannot be changed, all other outputs are free for configuration by commissioning. Outputs are free to be used for any
purpose.
Digital outputs are restricted by signal type and physical number of connections.
An output function is only allowed to be used once. Already used and configured terminal is greyed-out in the menu for
output type selection.
Analogue and digital outputs have a selection for Auto/Manual modes and an adjustable value for Manual mode.
Manual mode selection overwrites all system related automatic functions. Analogue output adjustable manual value
range is 0–10V and digital output values On/Off.
Table 2 Overview of output configuration
Analog outputs
Digital outputs
Output type
Auto/Manual
Value
Output type
Auto/Manual
Value
8.7.6.3 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.
• Choose bypass damper location if heat exchanger type Plate is selected. Default setting is based on unit type.
Supply / Extract
• Set actuator type. Default setting is based on unit type.
Range: 0–10 V / 2–10 V / 10–0 V / 10–2 V.
Heater
• Choose heater type. Each selection unlocks additional configuration options. Default setting is based on unit type.
Available types: None / Electrical / Water / Change-over.
• 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 10°C. This option is available if Water / Change-over heater
type is selected.
Range: 0–20°C.
• Set circulation pump stop delay. Default setting is 5 minutes. This option is available if Water / Change-over heater type is selected.
Range: Off / 1–60 min.
Cooler
• Choose cooler type. Each selection unlocks additional configuration options. Default setting is None.
Available types: None / Water / Change-over.
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• Set outdoor air temperature interlock. Default setting is 10°C.
Range: 0–20°C.
• 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 stop delay. Default setting is 5 minutes. This option is available if Water / Change-over heater type is selected.
Range: Off / 1–60 min.
Extra controller
• Choose extra controller type. Each selection unlocks additional configuration options. Default setting is None.
Available types: None / Preheater / Heating / Cooling.
• Set temperature set point of the extra controller. Default value is 0°C.
Range: –30°C — 40°C.
• Set P-band. Default setting is 4°C.
Range: 1-60°C.
• Set I-time. Default setting is Off.
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 / Heating controller
type is selected.
Range: 0–20°C.
• Set circulation pump stop delay. Default setting is 5 minutes.
Range: Off / 1–60 min.
8.7.6.4 Control Regulation
Configure how the system is controlled.
Temperature Control
• Configure temperature controller. Choose control mode:
Available modes: Supply air temperature control / Room temperature control / Extract air temperature control
• Choose temperature unit. Default setting is Celsius.
Available units: Celsius / Fahrenheit
• Set P-band. Default setting is 20°C. Set I-time. Default setting is 100 sec.
• Configure SATC Split for heater (0–20%), heat exchanger (25–60%) and cooler (65–100%) output settings.
Range: 0–100%.
• Configure cascade control setpoint for min/max supply air temperature, P-band, I-time.
Only available for Room temperature control / Extract air temperature control modes.
ECO mode
• Configure ECO mode settings. Set heater offset. Default setting is 10°C.
Range: 0–10°C.
Fan Control
• Configure airflow and fan settings. Select fan control (airflow) type. Default setting is Manual (%).
Available types: Manual (%) / Manual rpm / Flow (CAV) / Pressure (VAV) / External
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Setting
Manual
RPM
Pressure
(VAV)
Flow (CAV)
External
Airflow
measurement
unit.
%
rpm
l/s, m3/h, cfm
P-Band
0–100%
0–3000 rpm
0–500 Pa
Default setting: 150 Pa
0–100%
I-time
Off / 1–240 sec.
Off / 1–240 sec.
Default setting:
50 sec.
Off / 1–240 sec.
Default setting: 50 sec.
Off / 1–240 sec.
Airflow level
settings for each
level: MAXIMUM
LEVEL, HIGH
LEVEL, NORMAL
LEVEL, LOW
LEVEL,
MINIMUM LEVEL
16-100%
500–5000 rpm
Sensor range (airflow unit)
0–100%
Pa, inwc
%
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
voltage relation
Pressure at 10V: 0-2500 Pa, default
to pressure.
setting 500 Pa.
Set value at
Extract air fan control sensor:
which fan alarm
Pressure at 0V: 0-500 Pa, default
occurs. Default
setting 0 Pa.
setting is None
Pressure at 10V: 0-2500 Pa, default
setting 500 Pa
Set K factor for
supply air fan
and extract air
fan. Default
settings are
based on unit
type.
-
-
Outdoor
Compensation
Compensation is always started at fixed value of 0° C. Set stop compensation for outdoor air
temperature and compensation value for fan speed.
Stop Compensation Temperature range: -25 - 0°C, default setting 0°C
Stop Compensation Value range: -50 to 0%, default setting 0%
SAF K-Factor
range: 0–1000
EAF K-Factor
range: 0–1000
-
-
Important
Changing the airflow type does not change P-band value automatically. P-band value have to be changed
manually after changing the airflow type.
Demand Control
Configure indoor air quality sensors. Once sensor(s) are configured, Demand Control function is activated by choosing
AUTO mode in home screen.
• Activate or deactivate CO2 sensor. Default setting is Off.
Set CO2 sensor setpoint. Default setting is 800 ppm (parts per million in atmosphere). Normal atmospheric CO2 concentration is 400 ppm. Range: 100–2000 ppm.
Set P-band, default setting is 200 ppm. Range: 50–2000 ppm.
Set I-Time, default setting is Off. Range: Off/1–120 sec.
• Activate or deactivate RH sensor. Default setting is Off.
Set humidity setpoint in summer, default setting is 60%. Range: 1–100%.
Set humidity setpoint in winter, default settting is 50%. Range: 1–100%.
Set P-band, default setting is 10%. Range: 1–100%.
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Set I-time, default setting is Off, Range: Off/1–120 sec.
• Select airflow level for Improving Air Quality. Range: Normal / High / Max.
• Select airflow level for Good Air Quality. Range: Low / Normal.
RH Transfer Control
Note:
Setting is available if heat exchanger type is set as Rotating. It is highly recommended to leave default
values for P-band and I-time. They should be changed only by installer and trained staff.
• Activate or deactivate relative humidity transfer functionality. Default setting is On.
• If RH Transfer Control is activated, configure:
Setpoint, default setting is 45% humidity. Range: 1–100% RH.
Set P-band, default setting is 4g/kg. Range: 1–100g/kg.
Set I-time, default setting is Off. Range: Off/1–120 sec.
Defrosting Control
Note:
Setting is available if heat exchanger type is set as Plate.
The unit is equipped with an automatic defrost function that is activated when there is risk of icing in the area around
the heat exchanger.
• Select defrosting mode. Default setting is Normal.
1
Soft
Dry areas, such as warehouse buildings with few people or industrial
buildings that don’t use water in their production process.
Normal
Apartments or houses with normal humidity 1
Hard
Buildings with very high humidity level.
In newly constructed houses it might be necessary with a higher defrost level during the first winter period.
• Set by-pass location. Default setting is based on unit configuration.
Supply / Extract.
• Set preheater setting. Default setting is based on unit configuration.
Auto / Fixed
Fixed pre-heater setting allows user to adjust pre-heater setpoint manually. Auto pre-heater setting sets floating
pre-heater activation setpoint (Stop defrosting temperature +2K).
• Set if secondary air is allowed. Default setting is Off.
Off / On.
Cooling Control
• If the outdoor air is warmer than the extract air and the supply air is above the setpoint, cooling recovery occurs. This
condition blocks the heat regulation process. Activate or deactivate cooling recovery. Default setting is On.
Set cooling limit. Cooling recovery is allowed if extract air temperature is lower than outdoor air temperature by a set
limit (default setting is 2K) and cooling demand is present.
• Configure status, temperature and duration of free cooling. Activate or deactivate free cooling . Default setting is
Off.
Set supply and extract air fan levels during free cooling. Default setting is Normal. Range: Normal / High /
Maximum.
Set start condition. Outdoor daytime temperature for activation, default setting is 22°C. Range: 12–30°C.
Stat stop conditions. Extract/Room temperature, default setting is 18°C. Outdoor high temperature limit, default setting is 23°C. Outdoor low temperature limit is 12°C. Start and stop time.
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8.7.6.4.1Finding RPM for desired airflow
It is necessary to set fan RPM (revolutions per minute) for each airflow level to control airflow by changing fan speed.
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.
2. Go to Diagram tab and type in desired airflow values in l/s, m3/h, m3/s or cfm for supply and extract air. Input pressure drop in duct system (if this value is not know, type in 100 Pa for both supply and extract air)
Fig. 7 Example of airflow and external pressure selection
3. See calculated speed values in revolutions per minute (rpm) for both supply and extract air in the table bellow
diagrams.
Fig. 8 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 LEVEL, MAXIMUM LEVEL.
5. Finally in the control panel go to Service menu, enter the password, then go to Control Regulation → Fan
Control. Choose RPM as airflow type and in sub-menu Airflow Level Settings enter calculated fan speed values for each level.
8.7.6.5 User Modes
Set airflow level, duration and offset for each user mode.
Set supply and extract air fan levels, default duration and temperature offset where available for user modes:
• Away
• Central Vacuum Cleaner
• Cooker Hood
• Crowded
• Fireplace
• Holiday
• Refresh
8.7.6.6 Communication
Configure Modbus and wireless settings
Modbus
• Set Modbus address. Default setting is 1.
• Set baud rate. Default setting is 19200.
• Set parity. Default setting is None. Range: None / Even / Odd.
• Set stop bits. Default setting is 2. Range: 1–2.
• Shows Smartly-Gateway state.
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HMI
• Shows communication information for HMI. Modbus device number (1–10) and Modbus termination: Active/
Inactive.
8.7.6.7 Logs
Information about alarms, fans and parameters are stored in Logs menu.
Fans Levels
• Time counter for each supply air fan level duration is displayed. Counted and total time. Reset counted time.
Level 1: 0%
Level 2: 1–29%
Level 3: 30–44%
Level 4: 45–59%
Level 5: 60–100%
Parameters
• Select parameter type and create a graph based on stored data
button
. Export parameters data by touching arrow
. (only available in mobile application)
8.7.6.8 Unit Backups
In this menu it is possible to save and restore user and factory settings.
User backups
• Touch SAVE button to save current configuration and parameters.
Touch RESTORE button to restore last saved user configuration and parameters
Factory settings
• Touch RESTORE button to restore factory configuration and parameters. This will also overwrite changed password.
Software versions
Displays current version of main circuit board, Internet Access Module and HMI.
• Touch SOFTWARE UPDATE button to update software if there is a newer version.
8.7.6.9 Password Settings
Service level is always locked with a password. Other menu levels have a separate option for locking. If password requirement is activated for different menu levels, these are unlocked with the administrator password.
Choose what menus should be locked or not.
8.7.7
Help
FAQ, troubleshooting of alarms, contact information for support is provided in this menu.
• Service partner — information about service partner.
• Company
• Telephone
• Homepage
• Email
• User modes— detailed description of all user modes.
• Functions— detailed description of different user functions.
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• Alarms— detailed description of all alarms.
• Troubleshooting— information about all different possible malfunctions.
9
Service
9.1
Warnings
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
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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9.2
Internal components
Fig. 9 Internal components
Position
Description
1
Supply air fan
2
Overheat protection sensor
3
Overheat protection reset button
4
Internal electrical re-heater
5
Rotor sensor
6
Rotating heat exchanger
7
Outdoor air sensor
8
Supply air filter
9
Extract air fan
10
Drive belt for rotating heat exchanger
11
Rotor motor
12
Relative humidity/Extract air temperature sensor
13
Extract air filter
14
Supply air sensor
15
External connections
9.2.1
Component descriptions
9.2.1.1 Fans
The fans have external rotor motors of EC type which can be steplessly controlled individually 16–100%. The motor
bearings are life time lubricated and maintenance free. It is possible to remove the fans for cleaning, see “User Manual”
for more information.
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9.2.1.2 Filters
The factory installed filters are of filter quality F7 for the supply air and G3 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 G3 can be installed for supply air filtering.
The filter type is labelled on the top of the filter
9.2.1.3 Heat exchanger
SAVE VSR 300/500 is equipped with a highly efficient, rotating heat exchanger. Required supply air temperature is
therefore normally maintained without adding additional heat.
The heat exchanger is removable for cleaning and maintenance, see “User Manual” for more information.
9.2.1.4 Main circuit board
The main circuit board controls all functions and the unit.
It is possible to connect external accessories to a free terminals on the main circuit board.
9.2.1.5 Connection box
Connection box is placed outside of the unit. It contains connection board. All external accessories can be connected to
the unit via connection board with freely configurable terminals.
9.2.1.6 Temperature sensors
Four temperature sensors (NTC, 10 kΩ at 25°C) are included in the unit from factory and positioned in the corresponding air chambers.
The sensors are connected to the main print card. See wiring diagram for more information.
9.2.1.7 Humidity sensor
Relative humidity sensor (RHS) is included in the unit from factory and positioned in the extract air chamber.
The sensor is connected to the main print card. See wiring diagram for more information.
9.2.1.8 Electrical Re-heater battery
The re-heater battery is positioned in the supply air chamber.
The re-heater is activated by a relay and switches on if the supply air temperature is lower than the set point and
switches off if one or more of the following conditions are met:
1. If the supply air temperature is above the set point.
2. If the over heat protection is activated or the sensor is malfunctioning.
3. If the emergency thermostat is triggered or broken.
4. If the supply air sensor is in error state.
5. If the supply air fan is not running.
6. If the heater is set to disabled in the menu.
9.2.1.9 Overheat 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 .
The button is placed on the top cover.
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1. Reset button
9.3
Replacing rotor drive belt
If the alarm Rotor guard is raised, see chapter 8.7.2.3, the rotor drive belt may be damaged or broken.
Fig. 10 Rotor drive belt
The replacement drive belt (1) is adjustable and delivered with a nipple attached in one end.
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.
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.
9.4
Troubleshooting
If problems should occur, please check the items below before calling your service representative.
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Malfunction
Action
1. Check the HMI for alarms.
Fans do not start
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 8.7.3).
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.
Reduced airflow
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 8.7.3).
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)
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).
Low supply air
temperature
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.
Noise/vibrations
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.
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10
Accessories
SAVE VSR 300/500 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.
10.1 Internet Access Module (IAM)
Internet access module is a device that allows to connect
to the unit and control it via a mobile application or
directly from the computer and receive automatic
updates.
The Cloud is a mediator between the user and the unit.
To access your unit via Cloud, it has to be connected to
the internet via Internet Access Module.
The Internet Access Module (IAM) should be connected to the Connection Board (CB) and then via WiFi or Ethernet cable to the internet gateway (router).
For more information read the manual that comes with the accessory.
Component/product — Article number:
• Internet Access Module (IAM) – 211243
10.1.1
Mobile application and Login
A mobile application to access your unit via internet can be downloaded from Google Play or AppStore.
Once application is installed on your smartphone and IAM is connected properly:
1. Launch the application. In the login screen (pos. 1) enter your unique
UNIT ID number which can be found on the back label of IAM.
2. Press LOG IN button (pos. 2).
3. When you connect to your IAM for the first time, you must set your
own unique password. In the next menu screen enter your new
password and press CHANGE PASSWORD (pos. 3).
4. Confirm change by pressing IAM activation button for 2–3 seconds.
5. You can now login with your new password.
10.2 Indoor air quality sensors
Indoor air quality sensors (IAQ) are CO2, relative humidity and temperature transmitters that must be installed either in
extract air duct or the room depending on the type of transmitter.
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• IAQ — indoor air quality sensor (CO2, RH and
temperature)
• CO2 — CO2 duct sensor
• 1 — Outdoor air
• 2 — Supply air
• 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. Install IAQ sensor in the duct or the room depending on the transmitter type.
2. Connect CO2 sensor to any free universal analog input (UI) on the connection board.
3. If IAQ sensor contains relative humidity transmitter:
Connect it to any free universal analog input (UI) on the connection board.
4. If IAQ sensor contains room temperature transmitter:
Connect it to any free analog input (AI) on the connection board (only AI6 and AI7 are available on the connection
board).
Fig. 11 IAQ connections
Configuration
1. Go to Service menu.
2. Enter password (default 1111).
3. Configure of CO2 and/or relative humidity sensor: Go to Input menu. Select UNIVERSAL tab. Select the universal input to which the sensor is connected. Example if it is connected to UI4 on the connection board, then select UNIVERSAL INPUT 4. Select signal type as Analog input and select sensor type from the input type list: RH sensor (RH)
and/or CO₂ Sensor (CO₂).
4. Configure room temperature sensor: Go to Input menu. Select ANALOG tab. Select the analog input to which the
sensor is connected. Example if it is connected to AI6 on the connection board, then select ANALOG INPUT 6. Select
input type as Room Air Temperature Sensor (RAT).
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10.3 Temperature control
10.3.1
Electrical duct pre-heater
Electrical pre-heater can be installed in the outdoor air duct to pre-heat outdoor air before it reaches the unit and prevent icing in the heat exchanger.
• PH — electrical pre-heater
• ECT — extra controller temperature sensor
• H — contactor
• 1 — Outdoor air
• 2 — Supply air
• 3 — Extract air
• 4 — Exhaust air
Component/product — Article number:
• Duct temperature sensor (ECT) — 211524
• CB Preheater Connection Kit — 142852
• VSR 300:
CB 160-1,2 230V/1 Duct heater — 5291
• VSR 500:
CB 200-2,1 230V/1 Duct heater — 5384
Installation and connection
1. Install electrical pre-heater at least 100 mm distance from the unit in the outdoor air duct. Contactor is used to control
the pre-heater. Connect contactor it to any free digital output.
2. Connect pre-heater and the power supply to the contactor.
3. Connect extra controller temperature sensor (ECT) to any free analog input.
Fig. 12 Pre-heater connections
Configuration
1. Go to Service menu
2. Enter password (default 1111)
3. Go to Components menu, select Extra Controller menu and select mode as Preheater. Pre-heater setpoint
can be set in the same menu. Do other advanced settings if necessary.
4. Configure connection of the pre-heater. Go to Service menu. Select Output menu. In next menu select DIGITAL
tab. Select the digital output to which the pre-heater connected. Example if it is connected to DO3 on the connection
board, then select DIGITAL OUTPUT 3 and select Step Controller Y4 Extra Controller from the output type
list.
5. Configure extra controller temperature sensor. Go back to Input menu. Select ANALOG tab. Select the analog input
to which the extra controller temperature sensor is connected. Example if it is connected to AI6 on the connection
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board, then select ANALOG INPUT 6 and select Extra Controller Temperature Sensor (ECT) from the input
type list.
10.3.2
Duct water heater
A duct water heating battery is supposed to be installed in supply air duct.
• WH — water heating battery
• FPT — frost protection sensor
• SAT — supply air temperature sensor
• S — actuator for valve
• 1 — Outdoor air
• 2 — Supply air
• 3 — Extract air
• 4 — Exhaust air
Component/product — Article number:
• VAZ4 24A Actuator 0-10V (S) — 9862
• Duct sensor -30-70C (SAT) — 211524
• Surface sensor -30-150C (FPT) — 211523
• VSR 300:
VBC 160-2 Water heating battery— 5458
VBC 160-3 Water heating battery — 9840
ZTV 15-0,4 2-way valve — 9829
ZTV 15-0,6 2-way valve — 6571
ZTR 15-0,4 valve 3-way — 9670
ZTR 15-0,6 valve 3-way — 6573
• VSR 500:
VBC 200-2 Water heating battery— 5459
VBC 200-3 Water heating battery — 9841
ZTV 15-0,6 2-way valve — 6571
ZTV 15-1,0 2-way valve — 9823
ZTR 15-0,6 valve 3-way — 6573
ZTR 15-1,0 valve 3-way — 6572
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.
3. The frost protection sensor (FPT) should be strapped on a surface on the return water pipe. Connect FPT sensor to
any free analog input.
4. Internal supply air temperature sensor (SAT, default connection AI2 on the main circuit board) must be replaced by a
duct temperature sensor which can be acquired as an accessory. A duct temperature sensor must be installed in the
duct after water heater: Connect duct temperature sensor in a place of internal supply air temperature sensor (AI2).
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Note:
A duct temperature sensor can be connected to analog inputs 6–7 on the connection board for better
access when the internal supply air temperature sensor is disabled in the control panel. Then temperature
sensor has to be re-configured as universal analog input.
Fig. 13 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. Configure connection of the water heater. Go to Service menu. Select Output menu. In next menu select ANALOG
tab. Select the analog output to which the water heater is connected. Example if it is connected to AO3 on the connection board, then select ANALOG OUTPUT 3 and select Y1 Heating from the output type list.
5. Configure frost protection sensor (FPT). Go back to Input menu. Select ANALOG tab. Select the analog input to which
the frost protection sensor is connected. Example if it is connected to AI6 on the connection board, then select ANALOG INPUT 6 and select Frost Protection Temperature Sensor (FPT) from the input type list.
6. Since a duct temperature sensor replaces internal supply air temperature sensor, it doesn’t need to be re-configured.
Note:
A duct temperature sensor can be connected to analog inputs 6–7 on the connection board for better
access when the internal supply air temperature sensor is disabled in the control panel. Then temperature
sensor has to be re-configured as universal analog input.
7. Water heater and its components are now configured.
10.3.3
Duct water cooler
A duct water cooler is supposed to be installed in supply air duct to provide a cooled down air to the apartment.
• 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 — Article number:
• RVAZ4 24A Actuator 0-10V (S) — 9862
• Duct sensor -30-70C (SAT) — 211524
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• VSR 300:
CWK 160-3-2,5 Duct cooler,circ — 30022
ZTV 15-0,4 2-way valve — 9829
ZTV 15-0,6 2-way valve — 6571
ZTR 15-0,4 valve 3-way — 9670
ZTR 15-0,6 valve 3-way — 6573
• VSR 500:
CWK 200-3-2,5 Duct cooler,circ — 30023
ZTV 15-0,6 2-way valve — 6571
ZTV 15-1,0 2-way valve — 9823
ZTR 15-0,6 valve 3-way — 6573
ZTR 15-1,0 valve 3-way — 6573
Installation and connection
1. Install a duct water cooler 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.
3. Internal supply air temperature sensor (SAT, default connection AI2 on the main circuit board) must be replaced by a
duct temperature sensor which can be acquired as an accessory. A duct temperature sensor must be installed in the
duct before water heater: Connect duct temperature sensor in a place of internal supply air temperature sensor.
Note:
A duct temperature sensor can be connected to analog inputs 6–7 on the connection board for better
access when the internal supply air temperature sensor is disabled in the control panel.
Fig. 14 Duct cooler connections
Configuration
1. Go to Service menu
2. Enter password (default 1111)
3. Activate the actuator. Go to Components menu, select Cooler menu and select type as Water. Choose actuator
voltage type. Do advanced settings if necessary.
4. Configure connection of the duct cooler. Go to Service menu. Select Output menu. In next menu select ANALOG
tab. Select the analog output to which the water cooler is connected. Example if it is connected to AO3 on the connection board, then select ANALOG OUTPUT 3 and select Y3 Cooling from the output type list.
5. Since a duct temperature sensor replaces internal supply air temperature sensor, it doesn’t need to be re-configured.
Note:
A duct temperature sensor can be connected to analog inputs 6–7 on the connection board for better
access when the internal supply air temperature sensor is disabled in the control panel. Then temperature
sensor has to be re-configured as universal analog input.
6. Duct cooler and its components are now configured.
10.3.4
Change-over coil (DX)
Change-over (DX) coils can be used for both heating and cooling based on the demand.
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• DX — change-over coil
• FPT — frost protection sensor (optional)
• SAT — supply air temperature sensor
• THS — thermostat for feedback from pipe if correct
temperature available for heating/cooling (optional)
• HP — heat pump (or other device for heating and
cooling)
• S — actuator for valve
• 1 — Outdoor air
• 2 — Supply air
• 3 — Extract air
• 4 — Exhaust air
Component/product — Article number:
• RVAZ4 24A Actuator 0-10V (S) — 9862
• Duct sensor -30-70C (SAT) — 211524
• Surface sensor -30-150C (FPT) — 211523
• VSR 300:
ZTV 15-0,4 2-way valve — 9829
ZTV 15-0,6 2-way valve — 6571
ZTR 15-0,4 valve 3-way — 9670
ZTR 15-0,6 valve 3-way — 6573
• VSR 500:
ZTV 15-0,6 2-way valve — 6571
ZTV 15-1,0 2-way valve — 9823
ZTR 15-0,6 valve 3-way — 6573
ZTR 15-1,0 valve 3-way — 6573
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.
3. Connect the compressor or other device to any free digital output and 24V.
4. The frost protection sensor (FPT) should be strapped on a surface on the return water pipe. Connect FPT sensor to
any free analog input.
5. Internal supply air temperature sensor (SAT, default connection AI2 on the main circuit board) must be replaced by a
duct temperature sensor which can be acquired as an accessory. A duct temperature sensor must be installed in the
duct after water heater: Connect duct temperature sensor in a place of internal supply air temperature sensor (AI2).
6. Thermostat can be used to give feedback if correct water temperature available in the pipes (if heating is demanded
but only cold water available - heating is interlocked). Configure DI as Change-over feedback. This function is
optional.
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Fig. 15 Change-over heating/cooling connections
Configuration
Before change-over heating/cooling can be activated, it 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. Choose actuator voltage type. Do
advanced settings if necessary.
Go to Components menu, select Cooler menu and select type as Change-over. Choose actuator voltage type.
Activate the cooler.
4. Configure connection of the change-over heating/cooling actuator. Go to Service menu. Select Output menu. In
next menu select ANALOG tab. Select the analog output to which the change-over heater/cooler is connected. Example if it is connected to AO3 on the connection board, then select ANALOG OUTPUT 3 and select Y1 / Y3 Changeover from the output type list.
5. Configure frost protection sensor (FPT). Go back to Input menu. Select ANALOG tab. Select the analog input to which
the frost protection sensor is connected. Example if it is connected to AI6 on the connection board, then select ANALOG INPUT 6 and select Frost Protection Temperature Sensor (FPT) from the input type list.
6. Configure thermostat for feedback from pipe. Go to Input menu. Select DIGITAL tab. Select the digital input to
which the thermostat for feedback is connected. Example if it is connected to DI2 on the main board, then select
DIGITAL INPUT 2 and select Change-over feedback from the input type list. Thermostat for feedback can also
be connected to universal input (UI) on the connection board.
7. Since a duct temperature sensor replaces internal supply air temperature sensor, it doesn’t need to be re-configured.
Note:
A duct temperature sensor can be connected to analog inputs 6–7 on the connection board for better
access when the internal supply air temperature sensor is disabled in the control panel. Then temperature
sensor has to be re-configured as universal analog input.
8. Configure cooling activation signal to the compressor or other device. Go to Service menu. Select Output menu. In
next menu select DIGITAL tab. Select the digital output to which the compressor or other device is connected. Example if it is connected to DO3 on the connection board, then select DIGITAL OUTPUT 3 and select Activate
Cooling from the output type list.
10.4 Airflow control
10.4.1
VAV/CAV conversion kit
The VAV/CAV conversion kit SAVECair is used for VAV/CAV control of residential units.
Note:
The accessory package contains all needed parts for VAV conversion, however for use with CAV, an IRIS
damper or a similar device with known K factor has to be purchased.
Component/product — Article number:
• VAV/CAV conversion kit SAVECair — 140777
• VSR 300:
SPI-160 C Iris damper — 6753
• VSR 500:
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SPI-200 C Iris damper — 6754
Installation and connection
• Follow instructions in the manual which is delivered with the accessory.
10.5 Installation/Maintenance
10.5.1
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.
• H — contactor
• U- outdoor air damper
• V — exhaust air damper
• 1 — Outdoor air
• 2 — Supply air
• 3 — Extract air
• 4 — Exhaust air
Component/product — Article number:
• Contactor BC6-30-10–01 24V — 211650
• VSR 300:
EFD 160 Damper + TF230 motor (U/V) — 7122
TUNE-R-160-3-M4 (U/V) — 311969
• VSR 500:
EFD 200 Damper + TF230 motor (U/V) — 7162
TUNE-R-200-3-M4 (U/V) — 311970
Installation and connection
1. Install dampers.
2. Connect output of contactor switch (H) to dampers.
3. Connect any free digital output and 24V to control terminals of contactor switch (H).
4. Connect 230 V to input of contactor switch (H).
Fig. 16 Damper connection
Configuration
1. Go to Service menu
2. Enter password (default 1111)
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3. Configure the contactor switch that controls the dampers. Go to Output menu. Select DIGITAL tab. Select the digital
output to which the contactor is connected. Example if it is connected to DO3 on the connection board, then select
DIGITAL OUTPUT 3 and select signal type as Outdoor-/Exhaust Air Damper from the output type list.
10.6 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.
The filter type is labelled on the top of the filter
Component/product — Article number:
• VSR 300:
BFVSR 300 G3 Supply air — 208103
BFVSR 300 G3 Extract Air — 208105
BFVSR 500 F7 Supply air — 208107
• VSR 500:
BFVSR 500 G3 Supply air — 208106
BFVSR 500 G3 Extract Air — 208108
BFVSR 500 F7 Supply air — 208107
10.7 Passive House function
To enable Passive House function:
1. Activate Passive House function in menu (HMI or APP). Go to Service menu. Enter your password (default 1111).
Then go to Components menu, select Heat Exchanger and turn on Passive house function.
2. Install filter kit approved by Passive House Institute (PHI).
Component/product — Article number:
• Filter kit BFVSR 300 — 211585
• Filter kit BFVSR 500 — 211586
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Phone +370 340 60165
Fax +370 340 60166
www.systemair.com
SAVE VSR 300/500 · Installation and Service · 211458 · en_GB · 2017-10-18 · A002
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