System air SAVE VTR 250/B User manual

Document in original language | 254495 · v01
SAVE VTR 250/B
User Manual GB

254495 | v01
© 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.

254495 | v01
Contents
1 Overview ......................................................1
1.1 General Description ................................1
1.2 Warranty..............................................1
1.3 Type label.............................................1
2 Warnings.......................................................1
3 Operation......................................................2
3.1 SAVE LIGHT control panel .........................2
3.1.1 Indicators .................................2
3.1.2 To select airflow level .................2
3.1.3 To cancel sleep mode..................3
3.1.4 To change control panel
address (if more than one control
panel is used)............................3
3.2 SAVE TOUCH control panel / SAVE
CONNECT .............................................3
3.2.1 Common symbols.......................4
3.2.2 Home screen overview................4
3.2.3 Status bar and alarms..................4
3.2.4 Quick Information screen .............5
3.2.5 To select user mode....................5
3.2.6 To change the
temperature..............................7
3.2.7 To change the airflow..................7
3.2.8 To set a week schedule ...............8
4 Maintenance .. .......... ....... ........... ........... ....... ..9
4.1 Maintenance Schedule ............................9
4.2 To access internal components..................9
4.3 To change filters ....................................9
4.3.1 To reset the filter change
time ...................................... 10
4.3.2 To select a different filter
kit.........................................11
4.4 To clean the heat exchanger .. ...... .. ......... 11
4.5 To clean fans....................................... 12
4.6 To replace the rotor drive belt ................. 12
4.6.1 Temporary belt repair
solution.................................. 12
4.7 Duct System Maintenance...................... 13
4.7.1 Cleaning extract louvres and
supply air diffusers ................... 13
4.7.2 Checking the outdoor air
intake....................................14
4.7.3 Checking the roof cowl (if
fitted)....................................14
4.7.4 Checking and cleaning the
duct system ............................ 14
5 Troubleshooting............................................ 14
6 Electrical data............................................... 15
7 Disposal and recycling .................................... 15

Overview |1
1 Overview
1.1 General Description
This manual describes basic information how to operate and perform maintenance on the unit and the system it is con-
nected to.
Read the instructions carefully and in its entirety.
For description of advanced settings and installation of accessories see Service and Accessories Installation manual.
All documents can be found in our online catalogue at www.systemair.com.
1.2 Warranty
For the assertion of warranty claims, the products must be correctly connected and operated, and used in accordance
with the data sheets. Further prerequisites are a completed maintenance plan with no gaps and a commissioning re-
port. Systemair will require these in the case of a warranty claim.
1.3 Type label
Before calling your service representative, make a note of the specification and production number from the type label,
which can be found next to the external connections and inside of the unit.
Fig. 1 Type label
Position Description
1Product code (product specification)
2Product item number
3Production order number
4Serial number
5Production date (YY.MM.DD)
6Scannable code for manufacturing order (MO) number and software version
7Scannable code for the spare parts list and documentation
2 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.
254495 | v01

2|Operation
Warning
• This product is not intended to be used by children or people with reduced physical or mental ability or
lack of experience and knowledge, if no instruction concerning the use has been given by the person
responsible for their safety or that this person is supervising the operation. Children should be supervised
so that they can not play with the product.
• Beware of sharp edges during mounting and maintenance. Use protective gloves.
Warning
• Although the mains supply to the unit has been disconnected there is still a risk of injury due to rotating
parts that have not come to a complete standstill.
3 Operation
The unit can be controlled by one or more control methods:
• SAVE LIGHT control panel, refer to 2.
• SAVE TOUCH control panel, refer to 3.
• SAVE CONNECT, refer to 3.
3.1 SAVE LIGHT control panel
Fig. 2 Explanation of symbols
SAVE LIGHT is a basic control panel for SAVE series resi-
dential air handling units. SAVE LIGHT allows to change
airflow levels and indicates when any alarm is present.
1. A button to increase airflow
2. A button to reduce airflow
3. Current airflow level/mode
4. Filter change LED
5. General alarm LED
3.1.1 Indicators
General alarm LED shows when any alarm has occurred. Alarm type is not specified.
It is not possible to acknowledge alarms from the SAVE LIGHT control panel. Please check SAVE TOUCH
control panel or contact your local technical service provider.
The filter change LED shows when filters have to be replaced.
Filters cannot be cleaned and must be changed as necessary. This is normally done 2–3 times per year
depending on the air pollution at the installation site.
3.1.2 To select airflow level
LEDs show current airflow level (figure 2, pos. 3).
• Press button to increase the airflow.
• Press button to decrease the airflow.
254495 | v01

Operation |3
Off Low
(Minimum) Normal High Refresh
(Maximum)
Auto — flashing
slowly
The fan can be
set to Off by
activating
Manual Fan
Stop function in
Service menu.
Fan speed – 25% Fan speed – 45% Fan speed – 70% Sets speed of
both supply and
extract air fans
to Maximum
levels to replace
indoor air with a
fresh air in a
short period of
time.
The unit returns
to previously
active mode
after 1 hour
when in the
Refresh mode.
Automatic
airflow control.
Available only
when Week
Schedule,
Demand
Control
functions are
active or Fan
Control setting
is set to
External.
Note:
•Minimum and Maximum airflow can only be activated by a signal from an external source.
•Auto mode or Manual Fan Stop function can be enabled using the SAVE TOUCH control panel or a
mobile application.
• 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.
3.1.3 To cancel sleep mode
Press any button to cancel the sleep mode. SAVE LIGHT returns to the sleep mode after 3 minutes of inactivity.
All control panel lights are off during sleep mode. The sleep mode is active from 9:00 PM to 7:00 AM (based on time of
the air handling unit).
3.1.4 To change control panel address (if more than one control panel is used)
If more than one SAVE LIGHT control panel is used, the address of other control panels must be changed.
Each control panel must have it’s own unique address number. No control panel should have the same address value to
function properly.
1. Push and hold button for 10 seconds to see a current control panel address value.
2. Press button to increase and button decrease the value.
Address value can be changed from 6 to 10, default value is 10.
Address value Indication
6Low airflow LED is on
7Normal airflow LEDs are on
8High airflow LEDs are on
9Refresh mode LEDs are on
10 All LEDs are on
3.2 SAVE TOUCH control panel / SAVE CONNECT
Settings are done by touching the icons or options. The touch screen is sensitive and it is not necessary to press too
hard.
254495 | v01

4|Operation
SAVE CONNECT solution (mobile application and Internet access module) has a similar menu structure and functionality
as SAVE TOUCH control panel, so this section can also be used as a guide for the mobile application.
3.2.1 Common symbols
The following selection symbols are common and are present in most menu pages:
Back button to return to a previous
menu, located at the upper left corner
On and Off slider to activate or
deactivate a function. White bubble —
function is inactive, green bubble —
function is active.
Up arrow to increase a value CANCEL Button to cancel changes
Down arrow to decrease a value SET/OK Buttons to confirm changes
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.
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.
3.2.2 Home screen overview
1. Menu
2. Active user mode
3. Temperature settings
4. Airflow settings
5. Alarms and warnings
6. Status line
7. Outdoor temperature
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
3.2.3 Status bar and alarms
Status bar indicates all currently active functions. Touch the status bar to see descriptions of active functions in more
detail.
For more information about user modes and functions, please check Help menu.
Touch the alarm bar on the home screen to see all active alarms.
254495 | v01

Operation |5
Touch HELP button to know more about the alarm. To clear the alarm, touch ACKNOWLEDGE button.
Note:
The underlying cause of the alarm must be resolved first otherwise the alarm will appear again.
If the problem continues contact your installation company or place of purchase.
3.2.4 Quick Information screen
Quick information screen can be shown instead of a sleep
mode screen.
Quick information screen shows the following
information:
1. Time
2. Outdoor temperature
3. Current User mode / Alarm
4. Fan speed
○○○ – off, ●○○ – Minimum/Low, ●●○ – Normal,
●●● – High/Maximum
5. Supply air temperature
6. Relative humidity (if configured)
7. CO2sensor value (if configured)
Quick Information screen can be enabled or disabled in
menu System Preferences —> Display Settings
— > Quick Info screen.
3.2.5 To select user mode
For more information about user modes and functions, please check Help menu.
The top circle on the home screen indicates a currently active user mode. Touch the symbol to change the mode.
254495 | v01

6|Operation
Duration have to be set for temporary user modes. SAVE VTR 250/B will return to its previous working mode after the
set time expires.
Note:
AUTO mode is available for selection only if the optional Demand Control,Week Schedule and/or
external fan control functions are activated.
3.2.5.1 Permanent modes
Permanent modes are always active unless interrupted by temporary modes, activated user functions or alarms:
Icon Text Description
Auto
Automatic airflow control. 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
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.
3.2.5.2 Temporary modes
Temporary modes are active only for a set period of time unless interrupted by active user modes, activated user func-
tions or alarms:
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.
Set duration 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.
Set duration 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.
Set duration in hours.
254495 | v01