System air SAVE VTR 250/B User manual

Document in original language | 254495 · v01

SAVE VTR 250/B

User Manual GB

254495 | v01

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.

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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.

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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.

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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.

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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.

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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

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