Salda Smarty 2X V Series User manual

Subject to technical modication
Smarty 2X-3X V_P0110_AZ_0004
AHU WITH HEAT RECOVERY
Smarty 2X V
Smarty 3X V
User‘s and service technical manual

2
Smarty 2X/3X V
www.salda.lt
Symbols 4
Marking 4
Transportation and storage 4
Unpacking 5
Standard package of components 5
Safety precautions 5
Description 5
Components 6
Operating conditions 6
Maintenance 7
Cover opening 7
Filters maintenance 7
Fans maintenance 7
Heat exchanger maintenance 9
Bypass Dampers and Pre-Heater maintenance 9
Control board maintenance 10
Recommendations for Installation of Unit Functional
Blocks 10
Wiring Diagram 11
Air ow 11
Smarty 2X/3X V connection possibilities 11
Technical data 12
Filter 12
Air ow Diagrams 13
Smarty 2X V dimensions 14
Smarty 3X V dimensions 15
Mounting 16
Mounting on wall 16
Mounting on Legs 16
Connection of the unit to electric network 17
Drainage 18
Control Board and its Functions 18
Descriptions of Unit Functions 19
1.1 System modes 19
1.2 System Control 19
1.3 System status 20
1.4 Indications of Functions, Alarms and Warnings 20
1.5 Setting Date and Time 20
1.6 Weekly Schedule 20
1.7 Holiday Schedule 20
1.8 Winter/Summer Mode 20
1.9 “BOOST” Function 21
1.10 Protection against Dryness 21
1.11 Night Cooling Function (not available in Smarty
2X/3X V 1.1, 1.2 versions) 21
1.12 Air Filter Timer 21
1.13 Display and Cancellation of Alarms and Warnings
21
1.14 Event Log (History) 22
1.15 System Versions and Running Time 22
1.16 Air Flow Adjustment 22
1.17 PID Controller Adjustment 23
1.18 Manual Control of Components 23
1.19 System Monitoring 23
1.20 Stand-By Mode Blocking 23
1.21 Supply Air Temperature Control and Compensati-
on 23
1.22 Supply Air Temperature Limits 23
1.23 Mode from an External System Contactor 23
1.24 Fan Speeds from an External System Contactor
24
1.25 Filter Protections 24
1.26 Fire Protection against External System Contac-
tor 24
1.27 CO2 Reduction Function (only using additional
extract air CO2 sensors) 24
1.28 Changing Passwords 24
1.29 Restoring Factory Defaults 24
1.30 Fan Control 24
1.31 Damper Control 25
1.32 Heat Exchanger Control 25
1.33 Heaters 26
1.34 Digital Input Conguration 26
1.35 Sensor Conguration 26
1.36 Communications Line Conguration 26
Principle mounting diagram Smarty 2X/3X V 1.1 28
Principle mounting diagram Smarty 2X/3X V 1.2 29
Principle mounting diagram Smarty 2X/3X V 1.3 30
The principal connection scheme of internal and external
components 31
The principal connection scheme of internal and external
components 32
The principal connection scheme of internal and external
components 33
The principal connection scheme of internal and external
components 34
The principal connection scheme of internal and external
components 35
The principal connection scheme of internal and external
components 36
The principal connection scheme of internal and external
components 37
The principal connection scheme of internal and external
components 38
System protection 39
System protection 39
Recommendations before the start of the unit (before
the nal user) 39
Possible faults and troubleshooting 39
Sensors and their technical information 39
Controller miniMCB EX1 V1.0 40
Controller miniMCB EX1 V1.0 zones 40
Fire Protection Signal Input (Fire protection input
(NC)) 44
Outdoor Air Pre-Heater 44
Pre-Heater Capacity by Regions 45
System mode ir Fan speed switch 45
Supply air CO2 or RH (input 0-10VDC) 45
Extract air CO2 or RH (input 0-10VDC) 46
Room CO2 transmitter installation recommendation 46
CO2 concentration according to Pettenkofer limit 47
Smarty 2X/3X V 1.1 Version - Heater Control 47
Smarty 2X/3X V 1.2, 1.3 Versions - Heater Control 49
Connection of Supply and Extract Air Dampers 51
Connection of Remote Control Panel or ModBus 51
Operation and Alarm Indication (Smarty 2X/3X V 1.1)
51
Fire Place Connection (Smarty 2X/3X V 1.1) 52

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Smarty 2X/3X V
www.salda.lt
LED indication 52
Smarty 2X V Accessories 53
Smarty 2X V Spare Parts 54
Smarty 3X V Accessories 55
Smarty 3X V Spare Parts 56
Warranty 57
Unit’s maintenance table 58

4
Smarty 2X/3X V
www.salda.lt
200003025238
IV
PV
KE
PE
M
0.084 kW; 0.92 A; 230/50 V/Hz; ~1
0.085 kW; 0.93 A; 230/50 V/Hz; ~1
kW; A; 0 V/Hz; ~0
kW; A; 0 V/Hz; ~0
0.005 kW; 0.021 A; 24/50 V/Hz; ~-
0.17 kW; 1.87 A; IP-34
TOTAL:
gu072489 / 2014.03 www.salda.lt
1
3
4
5
2
6
200003025238
IV
PV
KE
PE
M
0.084 kW; 0.92 A; 230/50 V/Hz; ~1
0.085 kW; 0.93 A; 230/50 V/Hz; ~1
kW; A; 0 V/Hz; ~0
kW; A; 0 V/Hz; ~0
0.005 kW; 0.021 A; 24/50 V/Hz; ~-
0.17 kW; 1.87 A; IP-34
TOTAL:
gu072489 / 2014.03 www.salda.lt
1
3
4
5
2
6
PAVYZDYS
EXAPLE
PAVADINIMAS
TITLE
M
200003025238
IV
PV
KE
PE
M
0.084 kW; 0.92 A; 230/50 V/Hz; ~1
0.085 kW; 0.93 A; 230/50 V/Hz; ~1
kW; A; 0 V/Hz; ~0
kW; A; 0 V/Hz; ~0
0.005 kW; 0.021 A; 24/50 V/Hz; ~-
0.17 kW; 1.87 A; IP-34
TOTAL:
gu072489 / 2014.03 www.salda.lt
1
3
4
5
2
6
ESEMPIO
TITOLO
200003025238
IV
PV
KE
PE
M
0.084 kW; 0.92 A; 230/50 V/Hz; ~1
0.085 kW; 0.93 A; 230/50 V/Hz; ~1
kW; A; 0 V/Hz; ~0
kW; A; 0 V/Hz; ~0
0.005 kW; 0.021 A; 24/50 V/Hz; ~-
0.17 kW; 1.87 A; IP-34
TOTAL:
gu072489 / 2014.03 www.salda.lt
1
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MUSTER
TITEL
STICK HERE
Stick the auxiliary label on the unit (on an easily accessible place) or on the
dashed place of a technical manual in order to keep the important informa-
tion about the unit.
1 – Logo
2 – Internal usage code
3 – Brand name
4 – Technical data
5 – Units number
6 – Web address
• All units are packed in the factory to withstand regular conditions of transportation.
• Upon unpacking, check the unit for any damages caused during transportation. It is forbidden to install damaged units!!!
• The package is only for protection purpose!
• While unloading and storing the units, use suitable lifting equipment to avoid damages and injuries. Do not lift units by holding on power supply
cables, connection boxes, air extract or exhaust anges. Avoid hits and shock overloads. Before installation units must be stored in a dry room with
the relative air humidity not exceeding 70% (at +20 °C) and with the average ambient temperature ranging between +5 °C and +30 °C. The place of
storage must be protected against dirt and water.
• The units must be transported to the storage or installation site using forklifts.
• The storage is not recommended for a period longer than one year. In case of storage longer than one year, before the installation it is necessary
to verify whether the bearings of fans and motor rotate easily (turn the impeller by hand) and if the electric circuit insulation is not damaged or the
moisture is accumulated.
Preparation for transportation
Smarty 2X V Smarty 3X V
755 mm
335 mm
625mm
700 mm
800mm
485 mm
2160 mm
700mm
800mm
585 mm
700 mm
2120 mm
585 mm
700 mm
1058 mm
912 mm
585 mm
700 mm
585 mm
700 mm
2120 mm
585 mm
700 mm
1058 mm
912 mm
585 mm
700 mm
Warning – pay attention Additional information

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Smarty 2X/3X V
www.salda.lt
Smarty 2X/3X V are residential air handling unit with a high e󰀩ciency (up to 90 %) counter ow heat exchanger. The unit provides ventilation in the
home and takes the heat from the exhausted air. AHU complies with ErP 2018 and Passivhaus requirements. The unit is operated by a separate
remote control panel or though separate MB-Gateway by PC. Remote control panel and MB-Gateway are optional and not included in standard pack-
age. Control functions depend on selected control board type: MiniMCB or MiniMCB basic.
Smarty 2X/3X V operates within the limits of the airow diagrams and is suitable for indoor operation only. Required ambient temperatures must be
from +5 oC to +40 oC. For the cold climate zones (air temperatures below -6 oC), integrated or optional pre-heater is required.
- Do not use the unit for purposes other than its’ intended.
- Do not disassemble or modify the unit in any way which may lead to mechanical failure or injury.
- Use special clothing and be careful while performing maintenance and repair jobs – the unit’s and its components’ edges may be sharp and cutting.
- Do not wear loose clothing that could be entangled in to operating unit.
- Do not place ngers or other foreign objects through inlet or exhaust guards or into connected duct. If a foreign object enters the unit, immediately
disconnect power source. Before removing object, make sure that any mechanical motion has stopped, the heater has cooled down and the restart is
not possible.
- Do not connect to any other power source than indicated on the model label.
- Do not place or operate unit on unsteady surfaces and mounting frames.
- Mount the unit rmly to ensure safe operating.
- Never use this unit in any explosive or aggressive elements containing environment.
- Do not use the unit if external connections are broken or damaged. If there are any defects, stop operating the unit and replace the damaged parts im-
mediately. That can be performed only by qualied electrician.
- Do not use water or another liquid to clean electrical parts or connections.
- If you notice water on electrical parts or connections, stop operating the unit.
Smarty 2X V Smarty 3X V
1
2
3
4
Standard package (without optional accessories) includes:
1. Key - 1 pc.
2. Sealing tape FIX-PV 6x20
3. Suspension bracket - 1 pc.
4. Condensate outlet pipe G3/8 - 1 pc.

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Smarty 2X/3X V
www.salda.lt
1. Flange 4 pcs.
2. Outdoor air temperature sensor (TL)
3. Outdoor air lter (G4/(F7 - optional)) and the EPP cover*
4. Extract air sensor (TA)**
5. Bypass damper (M1)**
6. Preheater (PE1)**
7. Extract air lter (G4) and the EPP cover*
8. Supply air sensor
9.CE7/7 power supply cable - 3 m.
10. Control board.
11. Supply air fan (PV)**
12. Exhaust air fan (IV)**
13. Galvanized steel casing
14. EPP casing
15. Heat exchanger
16. Condensate tube plugs
*Filter EPP cover only on Smarty 3X V.
** Depends on unit type.
Smarty 2X V Smarty 3X V
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2
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7
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9
10
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2
3
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5
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7
15
14
13
12
11
8
9
10
16
16
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2
3
4
5
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7
15
14
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9
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2
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Product name
Control board
Type
Heat recovery
Temperature
control
Bypass damper
Pressure sensor
(lter pollution
monitoring)
Integrated pre-
heater
Optional heating elements
*- only pre-heater or
heater
Duct based
Air Pre-
Heater
Duct based
Air Heater
Smarty 2X V 1.1 Mini MCB Premium + + + - + - +
Smarty 2X V 1.2 Mini MCB Basic Advanced + + + - - +*
Smarty 2X V 1.3 Mini MCB Basic Basic + + - - - +*
Smarty 3X V 1.1 Mini MCB Premium + + + + + - +
Smarty 3X V 1.2 Mini MCB Basic Advanced + + + - - +*
Smarty 3X V 1.3 Mini MCB Basic Basic + + - - - +*
Smarty 2XV, 3XV are available in three versions:
• Unit is designed to operate only indoors.
• It is forbidden to use the unit in potentially explosive environment.
• Unit is designed to supply/extract only clean air (free of chemical compounds causing metal corrosion, of substances aggressive to zinc, plastic and
rubber, and of particles of solid, adhesive and  bred materials).
Outdoor - temperature min./max. [°C]
-5/ +40*
-15 / +40**
-40 / +40***
- humidity [%] 90
* - Outdoor air temeperature without preheater (Salda Antifrost o󰀨)
** - with integrated preheater (Smarty 2X/3XV 1.1) or Smarty 2X/3XV 1.2/1.3 (Salda Antifrost on)
*** - with optional preheater on duct
Salda Antifrost uses dis-balancing of the air ow and it may cause negative pressure in premises.
Extract - temperature min./max.* [°C] +15 / +40
- humidity [%] 60
Not suitable for swimming pools, saunas and other
similar facilities.

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Smarty 2X/3X V
www.salda.lt
• Maintenance should be performed only by experienced and trained sta󰀨.
• The fan should be inspected and cleaned at least once a year.
• Be sure the fan is disconnected from power source before performing any maintenance or repair.
• Observe sta󰀨 safety regulations during maintenance and repair.
• The motor is of heavy duty ball bearing construction. The motor is completely sealed and requires no lubrication. Supplied air fan from X15, X2, X4.
Extract air fan from X16, X2, X4.
• Detach fan from the unit.
• Impeller should be specially checked for buil-up material or dirt which may cause an imbalance. Excessive imbalance can lead to accelerated wear
on motor bearings and vibration.
• Clean impeller and inside housing with mild detergent, water and damp, soft cloth.
• Do not use high pressure cleaner, abrasives, sharp instruments or caustic solvents that may scratch or damage housing and impeller.
• Do not plunge the motor into any uid while cleaning impeller.
Dirty lters increase air resistance, airow into the room.
Smarty 2X V Smarty 3X V
Remowing Smarty 2X V lters: key loosened and removable product
doors, removable lters. Uses G4 / (F7 - optional) lters.
Remowing Smarty 3X V lters: opening lter cover (pulling the strap),
retractable lter. Uses G4 / (F7 - optional) lters.
Unplug unit from mains before opening the door (discon-
nect the power plug from the outlet or if there is a two-pole
automatic circuit breaker installed – disconnect it as well.
It is necessary to ensure that it won’t be turned on by third
parties) and wait until the full stop of the fans (for about 2
min.).
Smarty 2X V Smarty 3X V
Changing lters, lters reload timer control. Description
of remote control panel functions is provided in the remote
control panel technical documentation or on the website
www.salda.lt.
Allowed to operate the unit without lters!
It is advisable to change the lters every 3 - for 4 months,
or according to their testimony timer remote control.

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Smarty 2X/3X V
www.salda.lt
• Make sure, that impeller’s balance weights are not moved.
• Make sure the impeller is not hindered.
• Mount the fan back into the unit. Connect the fan to power supply source.
• If after maintenance the fan does not start or stop itself, contact the producer. Malfunction of the fan can be identied according to the pressure in the
system (when pressure switches are connected). When there is a folt in fans’ motor, any separate notice is shown on the control panel.
- Remove the fan connectors from the control board. Supplied air fan from X15, X2, X4. Extract air fan from X16, X2, X4.
Note:
- X2, X4 are common for both fans.
- Reassembly shall be executed in the reverse order.
Smarty 2X V Smarty 3X V
X2
X15
X16
X4
Be sure the unit is disconnected from power source
before performing any maintenance or repair.

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Smarty 2X/3X V
www.salda.lt
• Proceed to maintenance and repair after any rotation in the fan stopped.
• Clean the heat exchanger once a year.
• Firstly take out heat exchanger cassette carefully. Submerge it into a bath and wash with warm soapy water (do not use soda). Then rinse it with
weak hot water stream (too strong stream can fold the plates). Place back the heat exchanger only when it is completely dry.
Smarty 2X V Smarty 3X V
Smarty 2X V Smarty 3X V
Bypass damper and pre-heater are mounted on one block. The pre-heater shall be disconnected by
removing X29 connector. The bypass damper shall be disconnected by removing X25 .
X29 X25

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Smarty 2X/3X V
www.salda.lt
Smarty 2X V Smarty 3X V
- Unscrew the front bolt securing the control board holder to the unit casing.
- Withdraw the automation through the front part.
- Disconnect the connectors from the control board.
- The connectors are marked according to connection location. Thus during automation reassembly please observe the marking of the connection
location of connectors and controller. If the marking on the controller terminals is not visible follow the PCB information provided in this passport (see
miniMCB description: Fig. 2 and Fig. 3):
Prior to connecting the unit to the mains, the door shall be closed.
• All the metering, control and execution units shall be mounted in freely accessible locations for maintenance, repairs or replacement.
• Prior to handover to the user, the pre-commissioning activities shall be performed to ensure proper operation of the automatic control system of the
air handling unit. Power plug socket shall be installed at a distance to ensure unstrained power cable of the unit. Standard length of the unit power
cable shall be: ~2.5 m long from the unit casing.
The installed plug socket shall be of at least the same nominal current as the unit nominal current, which is indicated in the unit rating plate.
• Install the control panel at the designed location.
• Connect the connection cable supplied with the remote control panel kit between the control panel and the HVAC unit. It is recommended to install
the remote control board separately from the power cables.
NOTE: If the cable is used together with other power cables, the remote control panel cable shall be shielded with grounded shielding armour.
NOTE: the remote control panel shall be connected and/or disconnected only after disconnecting power supply to HVAC unit.
Unit shall be connected to the mains through the cur-
rent leakage relay (30mA).
After complete dismantling of the unit control auto-
mation and its reinstallation, when connecting the
automation connectors, it is necessary to check if the
connector conductors are not damaged or otherwise
broken.

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Smarty 2X/3X V
www.salda.lt
Electrical equipment connection to the control board terminals. Control board connectors shall be of the following cross sectional area.
Control board 0,5 mm21,5 mm22,5 mm2
miniMCB X1, X2, X3, X4, X5, X6, X7 X9, X13, X14, X15, X16 X10, X11, X12, X17
miniEX1 X19, X20, X21, X23 - -
Power supply - - Xp1
Automation E zone, connector Xp1 general power connection to the unit ~1/230 VAC.
Smarty 2X V Smarty 3X V
Exhaust air Supply air Outdoor air air Extract
Right side connection Left side connection

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Smarty 2X/3X V
www.salda.lt
NOTE. Subject to technical modication
Technical data
W
According to EN 13141-7 standard.
Smarty 2X V Smarty 3X V
Exhaust air lter class G4 G4
width L [mm] 270 475
height H [mm] 187 180
depth W [mm] 25 25
model MPL MPL
Supply air lter class G4/(F7 - optional) G4/(F7 - optional)
width L [mm] 270 475
height H [mm] 121 134
depth W [mm] 25 25
model MPL MPL
Exhaust air fan
phase/voltage [50 Hz/
VAC] ~1/230 ~1/230
power/current [kW/A] 0,035/0,35 0,083/0,75
speed [min-1] 4060 3200
control input [VDC] 0-10 0-10
protection class IP54 IP54
Supply air fan
phase/voltage [50 Hz/
VAC] ~1/230 ~1/230
power/current [kW/A] 0,035/0,35 0,083/0,75
speed [min-1] 4060 3200
control input [VDC] 0-10 0-10
protection class IP54 IP54
Total power consumption power/current [kW/A] 0,67/3,35 0,07/0,75 0,07/0,75 1,37/6,75 0,17/1,55 0,17/1,55
Automatic control integrated + +
Thermal e󰀩ciency 92 %* 88 %*
Insulation of walls [mm] 30 30
Netto weight [kg] 25 39
Pre-heater power/current [kW/A] 0,6/2,6 - - 1,2/5,2 - -
Smarty 2X V LWA all, dB(A) LWA, dB(A)
125 Hz 250 Hz 500 Hz 1 kHz 2 kHz 4 kHz 8 kHz
Supply 60,3 51,8 56,0 61,1 55,2 50,4 46,1 31,9
Exhaust 47,4 36,4 50,2 47,4 38,2 26,7 19,8 22,9
Surrounding 47,7 46,4 52,0 45,6 38,4 28,9 24,3 22,9
Measured at ow/pressure [m3/h / Pa] 116/50
Smarty 3X V LWA all, dB(A) LWA, dB(A)
125 Hz 250 Hz 500 Hz 1 kHz 2 kHz 4 kHz 8 kHz
Supply 62,8 54,3 64,9 61,1 56,5 51,3 42,8 35,3
Exhaust 47,7 42,0 54,6 45,0 36,0 28,8 19,6 22,4
Surrounding 49,0 47,2 54,8 46,1 39,5 34,2 24,9 22,6
Measured at ow/pressure [m3/h / Pa] 267/50

13
Smarty 2X/3X V
www.salda.lt
Operational limits
Power consumption
Smarty 2X V Smarty 3X V
Supply air Supply air
-7°C
2°C
7°C
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
800
700
600
500
400
300
200
100
0 100 200 300 400 500
28 56 83 111
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
900
100
90
80
70
60
50
40
30
20
10
0
800
700
600
500
400
300
200
100
0 100 200 300 400 500
28 56 83 111
100%
100%
80%
80%
70%
70%
60%
60%
50%
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
P [W]
900
100
90
80
70
60
50
40
30
20
10
0
800
700
600
500
400
300
200
100
0 100 200 300 400 500
28 56 83 111
100%
100%
80%
80%
70%
70%
60%
60%
50%
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
P [W]
900
50
45
40
35
30
25
20
15
10
5
0
50
14
150
42
200
56
250
69
P [W]
Δ P [Pa]
stat
v [l/s]
v [m /h]
3
50
14
150
42
200
56
250
69
50
14
150
42
200
56
250
69
v [m /h]
3
v [m /h]
3
v [l/s]
v [l/s]
Δ P [Pa]
stat
Δ P [Pa]
stat
50
45
40
35
30
25
20
15
10
5
0
50
14
150
42
200
56
250
69
P [W]
Δ P [Pa]
stat
v [l/s]
v [m /h]
3
40%
40%
40%
40%
100%
100%
40%
40%
50%
40%
40%
50%
-7°C
2°C
7°C
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
800
700
600
500
400
300
200
100
0 100 200 300 400 500
28 56 83 111
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
900
100
90
80
70
60
50
40
30
20
10
0
800
700
600
500
400
300
200
100
0 100 200 300 400 500
28 56 83 111
100%
100%
80%
80%
70%
70%
60%
60%
50%
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
P [W]
900
100
90
80
70
60
50
40
30
20
10
0
800
700
600
500
400
300
200
100
0 100 200 300 400 500
28 56 83 111
100%
100%
80%
80%
70%
70%
60%
60%
50%
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
P [W]
900
50
45
40
35
30
25
20
15
10
5
0
50
14
150
42
200
56
250
69
P [W]
Δ P [Pa]
stat
v [l/s]
v [m /h]
3
50
14
150
42
200
56
250
69
50
14
150
42
200
56
250
69
v [m /h]
3
v [m /h]
3
v [l/s]
v [l/s]
Δ P [Pa]
stat
Δ P [Pa]
stat
50
45
40
35
30
25
20
15
10
5
0
50
14
150
42
200
56
250
69
P [W]
Δ P [Pa]
stat
v [l/s]
v [m /h]
3
40%
40%
40%
40%
100%
100%
40%
40%
50%
40%
40%
50%
Exhaust air Exhaust air
-7°C
2°C
7°C
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
800
700
600
500
400
300
200
100
0 100 200 300 400 500
28 56 83 111
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
900
100
90
80
70
60
50
40
30
20
10
0
800
700
600
500
400
300
200
100
0 100 200 300 400 500
28 56 83 111
100%
100%
80%
80%
70%
70%
60%
60%
50%
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
P [W]
900
100
90
80
70
60
50
40
30
20
10
0
800
700
600
500
400
300
200
100
0 100 200 300 400 500
28 56 83 111
100%
100%
80%
80%
70%
70%
60%
60%
50%
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
P [W]
900
50
45
40
35
30
25
20
15
10
5
0
50
14
150
42
200
56
250
69
P [W]
Δ P [Pa]
stat
v [l/s]
v [m /h]
3
50
14
150
42
200
56
250
69
50
14
150
42
200
56
250
69
v [m /h]
3
v [m /h]
3
v [l/s]
v [l/s]
Δ P [Pa]
stat
Δ P [Pa]
stat
50
45
40
35
30
25
20
15
10
5
0
50
14
150
42
200
56
250
69
P [W]
Δ P [Pa]
stat
v [l/s]
v [m /h]
3
40%
40%
40%
40%
100%
100%
40%
40%
50%
40%
40%
50%
-7°C
2°C
7°C
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
800
700
600
500
400
300
200
100
0 100 200 300 400 500
28 56 83 111
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
900
100
90
80
70
60
50
40
30
20
10
0
800
700
600
500
400
300
200
100
0 100 200 300 400 500
28 56 83 111
100%
100%
80%
80%
70%
70%
60%
60%
50%
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
P [W]
900
100
90
80
70
60
50
40
30
20
10
0
800
700
600
500
400
300
200
100
0 100 200 300 400 500
28 56 83 111
100%
100%
80%
80%
70%
70%
60%
60%
50%
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
P [W]
900
50
45
40
35
30
25
20
15
10
5
0
50
14
150
42
200
56
250
69
P [W]
Δ P [Pa]
stat
v [l/s]
v [m /h]
3
50
14
150
42
200
56
250
69
50
14
150
42
200
56
250
69
v [m /h]
3
v [m /h]
3
v [l/s]
v [l/s]
Δ P [Pa]
stat
Δ P [Pa]
stat
50
45
40
35
30
25
20
15
10
5
0
50
14
150
42
200
56
250
69
P [W]
Δ P [Pa]
stat
v [l/s]
v [m /h]
3
40%
40%
40%
40%
100%
100%
40%
40%
50%
40%
40%
50%
Specic fan power (SFP) Specic fan power (SFP)
-7°C
2°C
7°C
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
800
700
600
500
400
300
200
100
0 100 200 300 400 500
28 56 83 111
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
900
100
90
80
70
60
50
40
30
20
10
0
800
700
600
500
400
300
200
100
0 100 200 300 400 500
28 56 83 111
100%
100%
80%
80%
70%
70%
60%
60%
50%
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
P [W]
900
100
90
80
70
60
50
40
30
20
10
0
800
700
600
500
400
300
200
100
0 100 200 300 400 500
28 56 83 111
100%
100%
80%
80%
70%
70%
60%
60%
50%
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
P [W]
900
50
45
40
35
30
25
20
15
10
5
0
50
14
150
42
200
56
250
69
P [W]
Δ P [Pa]
stat
v [l/s]
v [m /h]
3
50
14
150
42
200
56
250
69
50
14
150
42
200
56
250
69
v [m /h]
3
v [m /h]
3
v [l/s]
v [l/s]
Δ P [Pa]
stat
Δ P [Pa]
stat
50
45
40
35
30
25
20
15
10
5
0
50
14
150
42
200
56
250
69
P [W]
Δ P [Pa]
stat
v [l/s]
v [m /h]
3
40%
40%
40%
40%
100%
100%
40%
40%
50%
40%
40%
50%
-7°C
2°C
7°C
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
800
700
600
500
400
300
200
100
0 100 200 300 400 500
28 56 83 111
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
900
100
90
80
70
60
50
40
30
20
10
0
800
700
600
500
400
300
200
100
0 100 200 300 400 500
28 56 83 111
100%
100%
80%
80%
70%
70%
60%
60%
50%
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
P [W]
900
100
90
80
70
60
50
40
30
20
10
0
800
700
600
500
400
300
200
100
0 100 200 300 400 500
28 56 83 111
100%
100%
80%
80%
70%
70%
60%
60%
50%
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
P [W]
900
50
45
40
35
30
25
20
15
10
5
0
50
14
150
42
200
56
250
69
P [W]
Δ P [Pa]
stat
v [l/s]
v [m /h]
3
50
14
150
42
200
56
250
69
50
14
150
42
200
56
250
69
v [m /h]
3
v [m /h]
3
v [l/s]
v [l/s]
Δ P [Pa]
stat
Δ P [Pa]
stat
50
45
40
35
30
25
20
15
10
5
0
50
14
150
42
200
56
250
69
P [W]
Δ P [Pa]
stat
v [l/s]
v [m /h]
3
40%
40%
40%
40%
100%
100%
40%
40%
50%
40%
40%
50%
Temperature e󰀩ciency Temperature e󰀩ciency
-7°C
2°C
7°C
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
800
700
600
500
400
300
200
100
0 100 200 300 400 500
28 56 83 111
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
900
100
90
80
70
60
50
40
30
20
10
0
800
700
600
500
400
300
200
100
0 100 200 300 400 500
28 56 83 111
100%
100%
80%
80%
70%
70%
60%
60%
50%
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
P [W]
900
100
90
80
70
60
50
40
30
20
10
0
800
700
600
500
400
300
200
100
0 100 200 300 400 500
28 56 83 111
100%
100%
80%
80%
70%
70%
60%
60%
50%
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
P [W]
900
50
45
40
35
30
25
20
15
10
5
0
50
14
150
42
200
56
250
69
P [W]
Δ P [Pa]
stat
v [l/s]
v [m /h]
3
50
14
150
42
200
56
250
69
50
14
150
42
200
56
250
69
v [m /h]
3
v [m /h]
3
v [l/s]
v [l/s]
Δ P [Pa]
stat
Δ P [Pa]
stat
50
45
40
35
30
25
20
15
10
5
0
50
14
150
42
200
56
250
69
P [W]
Δ P [Pa]
stat
v [l/s]
v [m /h]
3
40%
40%
40%
40%
100%
100%
40%
40%
50%
40%
40%
50%
-7°C
2°C
7°C
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
800
700
600
500
400
300
200
100
0 100 200 300 400 500
28 56 83 111
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
900
100
90
80
70
60
50
40
30
20
10
0
800
700
600
500
400
300
200
100
0 100 200 300 400 500
28 56 83 111
100%
100%
80%
80%
70%
70%
60%
60%
50%
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
P [W]
900
100
90
80
70
60
50
40
30
20
10
0
800
700
600
500
400
300
200
100
0 100 200 300 400 500
28 56 83 111
100%
100%
80%
80%
70%
70%
60%
60%
50%
v [m /h]
3
v [l/s]
Δ P [Pa]
stat
P [W]
900
50
45
40
35
30
25
20
15
10
5
0
50
14
150
42
200
56
250
69
P [W]
Δ P [Pa]
stat
v [l/s]
v [m /h]
3
50
14
150
42
200
56
250
69
50
14
150
42
200
56
250
69
v [m /h]
3
v [m /h]
3
v [l/s]
v [l/s]
Δ P [Pa]
stat
Δ P [Pa]
stat
50
45
40
35
30
25
20
15
10
5
0
50
14
150
42
200
56
250
69
P [W]
Δ P [Pa]
stat
v [l/s]
v [m /h]
3
40%
40%
40%
40%
100%
100%
40%
40%
50%
40%
40%
50%
Temperature e󰀩ciency (balanced mass ow):
Extract air = 20 °C/60 % RH
Outdoor air = -7 °C / 2 °C / 7 °C

14
Smarty 2X/3X V
www.salda.lt
155 mm
195 mm 158 mm
79 mm
83 mm 430 mm
82 mm
242 mm
82 mm
125 mm /100 mm*
732 mm
595 mm
G3/8
697 mm
386 mm
35 mm
316 mm
G3/8
156 mm
ø 125 mm
* Possibility to insert coupling of corresponding diameter

15
Smarty 2X/3X V
www.salda.lt
Ø 150 mm/160 mm*
252 mm
224 mm
386 mm
110 mm 265 mm
110 mm 113 mm
116 mm 170 mm 80 mm
810 mm
900,5 mm
599 mm
406 mm G3/8
538 mm
284 mm
Ø 160 mm
Ø 150 mm
G3/8
* Possibility to insert coupling of corresponding diameter

16
Smarty 2X/3X V
www.salda.lt
• Installation should only be performed by qualied and trained sta󰀨.
• When connecting air ducts, consider the notices indicated on the casing of the unit.
• Before connecting to the air duct system, the connection openings of ventilation unit should be closed.
• When connecting the ducts , you should pay attention to the air ow direction indicated on the device housing.
• Do not connect the bends close to connection anges of the unit. The minimum distance of the straight air duct between the unit and the rst branch of
the air duct in the supply air duct must be 1xD, in air exhaust duct 3xD, where D is diameter of the air duct.
• It is recommended to use the accessories-holders. This will reduce vibration transmitted by the unit to the air duct system and environment.
• Enough space must be left for opening of the maintenance door and lter covers.
• If the installed ventilation unit is adherent to the wall, it may transmit noise vibrations to the premises. Though the level of noise caused by the fans is
admissible, it is recommended to mount the unit at the distance of 400 mm from the nearest wall. If it is not possible, the mounting of the unit is recom-
mended on the wall of the room where the level of noise is not important.
• Ducts are connected to the unit in such way that they could be easily disassembled and the heater could be removed from the unit when performing
service or repair works.
400 mm
L
2xL
Smarty 2X V Smarty 3X V
40 mm
c
b
90
90
d
a
10 mm 10 mm
a
10 mm
b
c
14 mm
40 mm
c
b
90
90
d
a
10 mm 10 mm
a
10 mm
b
c
14 mm
40 mm
c
b
90
90
d
a
10 mm 10 mm
a
10 mm
b
c
14 mm
Unit mounting on wall:
a) To reduce the vibration stick the insulating tape on the unit‘s casing
side which touches the wall before mounting the unit on the wall.
b) The unit has to be mounted on the mounting brackets.
c) AHU mounting drawing.
Unit mounting on wall:
a) To reduce the vibration stick the insulating tape on the unit‘s casing
side which touches the wall before mounting the unit on the wall.
b) The unit has to be mounted on the mounting brackets.
c) AHU mounting drawing.
d) After the unit is mounted two wall bracket tabs has to be folded to 90o
angle by pliers to avoid the accident fall of the unit.
Legs are optional and not included in standard package.

17
Smarty 2X/3X V
www.salda.lt
• Supply voltage to the unit must be connected by a qualied specialist following the manufacturer’s instructions and e󰀨ective safety instructions.
• The unit’s power network voltage must correspond to electrotechnical parameters of the unit indicated in the technical decal.
• The unit’s voltage, power and other technical parameters are provided in the unit’s technical decal (on the unit casing). The unit must be connected
to the voltage plug socket of the grounded power network in compliance with the e󰀨ective requirements.
• The unit must be earthed according to the rules on installing electrical equipment.
• It is prohibited to use extension wires (cables) and power network plug socket distribution devices.
• Prior to carrying out any ventilation unit installation and connection activities (until its hand-over to the customer), the unit must be disconnected from
the power network.
• After installation of the ventilation unit, the power network plug socket must be accessible at any time and disconnection from the power network is
performed through the two-pole circuit breaker (by disconnecting phase pole and neutral).
• The unit must be thoroughly checked against damages (execution, control, measurement nodes) during transportation before it is connected to the
power network.
• The power cable can be replaced only by a qualied specialist upon the evaluation of the rated power and current.
400 mm
L
2xL
The manufacturer does not assume any liability for
personal injuries and property damage due to non-
conformance with the provided instructions.

18
Smarty 2X/3X V
www.salda.lt
Control board functions and logics are designed according to Standards DIN 1946-6:2009-05 and EN 12098-3.
MCB control board can be controlled by: Ptouch remote control panel, Stouch remote control panel or MB - GATEWAY web application. Description of
remote control panel functions is provided in the remote control panel technical documentation or on the website www.salda.lt.
1
2
3
3
II
IV
IVI
III V
VII
VIII
It’s required to connect condensate drainage system after hanging or placement of
air handling unit. Insert condensate draining into AHU. Condensate draining must
be lubricated with sealant (I-VII). Then place plastic washer on the bottom and tight-
en with counter nut (VII). Pipe (3) (metal pipe should be connected with G3/8 elbow,
plastic pipe – with G3/8 elbow or rubber hose – with strap if the unit is placed on
the legs, in other cases condensate hose can be connected in any direction) should
be connected by following order: AHU (1), pipe (2), and drainage system. Pipes (3)
should be bended not less than 3° degrees (1 meter of pipe must be bended 60 mm
downwards)! Before turning on AHU (1) the draining system should be lled up with
at least 0.5 l of water (pipe loop (3) must be always lled with water), also check if
water reaches sewerage system! In other case premise can be ooded during AHU
operation!
Draining system must be installed in the premise where the temperature is not lower
than 1°C. If temperature falls below 0°C the draining system should be isolated with
thermal isolation. The pipe loop 2) not necessarily must be mounted below the AHU
(1), but below the AHU (1) level.
Note. If the collector is situated upstream, install a system with a condensate pump
(o󰀨ered as an accessory).
D = min 150 mm
Before every heating season the condensate tube shall be
lled with water as indicated during the rst start-up! Before
every heating season the condensate tube shall be lled
with water as indicated during the rst start-up!
The unit can be congured only with Ptouch remote control
panel or MB-Gateway web application.
The following control board functions can be fully controlled
only with Ptouch remote control panel or MB-Gateway web
application. In case of Stouch remote control panel use the
description of remote control panel functions for MCB control
board.
Air Handling Unit uses two types of boards, depending on the
selected product version: miniMCB or miniMCB basic. Their
functionality is di󰀨erent, thus check the board name by the
product version.

19
Smarty 2X/3X V
www.salda.lt
System modes:
• Stand-by
• Building protection
• Economy
• Comfort
In stand-by mode the system is shut down for a permissible shutdown period (based on the stand-by mode blocking function settings).
The building protection mode is designed to protect a building against moisture accumulation. In this mode the system operates at speed 1. By default,
in this mode temperature maintenance is controlled (preferred temperature is indicated). However, if necessary, temperature maintenance can be
switched o󰀨.
Economy mode is designed to save energy when people are not in the room. In this mode the system operates at speed 2. By default, in this mode
temperature maintenance is controlled (preferred temperature is indicated). However, if necessary, temperature maintenance can be switched o󰀨.
Comfort mode is used when people are present in the room. In this mode the system operates at speed 3. In this mode the temperature is always
maintained.
System mode can be changed automatically by the functions (in a sequential order as indicated):
1 - Weekly Schedule
2 - Mode is activated from an external contactor
3 - User’s manual mode selection
4 - Holiday Schedule
5 - Stand-by mode blocking
Based on the weekly schedule the system decides which mode it will be operating in; however, the user may change the existing mode manually. The
system will inform when the next mode change is scheduled. After power loss the mode is selected based on the weekly schedule; however, if the
schedule is not set, the mode used before the power loss will be activated.
The user may change modes only when the mode is activated from an external contactor. The only case when the user cannot change the mode is
when the period of a holiday schedule is active. The system informs that the holiday schedule mode is active. To prevent blocking, the period of the
holiday schedule must be changed.
Stand-by mode can be blocked based on selected parameters. If at least one of the above functions changes its mode into stand-by mode, it must be
checked whether this mode is not currently blocked. If it is blocked, the previous selected mode is on.
The function order is provided below.
User entered data.
Reading of input
data
Data sending to outputs
and user interface
Weekly Schedule
Mode external switch
Holiday Schedule
Stand-by mode block-
ing
Protection against Dryness
Boost ventilation
Ventilation logics
Protections
Ventilation logics blocking
Manual control of com-
ponents
Start
End

20
Smarty 2X/3X V
www.salda.lt
The eld of a system status is designed to notify a user of the existing system status. The table below provides possible system statuses.
System status Description
Stand-by mode System operates in stand-by mode.
Building protection mode System operates in building protection mode.
Economy mode System operates in economy mode.
Comfort mode System operates in comfort mode.
Emergency run System operates in emergency mode. For more information see alarms.
Preparing System is preparing for operation (pre-heating water heaters, etc.).
Opening dampers Dampers are opened.
BOOST function activated “BOOST” function is active.
Cooling heaters Electric heaters are cooled down prior to stopping fans.
Closing dampers Dampers are closed.
Critical alarm Critical failure, system is shut down. For more information see alarms.
Fire alarm Fire protection from an external contactor is activated.
Heat exchanger frost protection activated Heat exchanger frost protection is activated.
Change lters Warning on clogged lters. Pressure relays are activated or lter timer is activated.
Room RH 3 days average is lower than 30%. Limiting 3 speed. Protection against dryness is activated. Room 3-day humidity average is lower than
30%. Air ow is reduced.
Function indications are designed to inform a user on active functions and on the presence of at least one warning or alarm. The table below provides
indications and their descriptions.
Functions indications Description
Working indication output Working indication output is activated
Alarm indication output Failure indication output is activated
System mode switch Mode is activated from an external contactor
Custom fans speed switch Selected fan speed from an external contactor is activated
Winter Active winter mode
Stand-by mode blocking activated Stand-by mode blocking is activated
Slowing down fans Fans are slowed down
Slowing down fans by temperature Fans are slowed down based on supply air temperature
Night cooling function activated Night cooling function is activated
Hydronic pump exercise activated Preventive maintenance of circulation pumps is activated
Service stop function Ventilation logic operation is blocked. Service activities are carried out
Holidays Holiday schedule interval is active. System mode can be changed only upon changing the holiday sched-
ule interval.
Reducing CO2 level CO2 reduction function is activated
Full recirculation Full recirculation function is activated
Proper date and time must be set to have proper functioning of schedules, event log and winter/summer function. Fast synchronization with the com-
puter time is possible in user and adjuster environments.
A weekly schedule consists of 10 weekly events. They can be added, deleted, activated and deactivated. One event indicates time, mode and days
of the week.
The system changes modes based on the weekly schedule only when the indicated time comes; therefore a user can always change the existing mode
manually. This schedule noties the user of the upcoming mode change by indicating the time remaining till the next event.
A holiday schedule is used when the unit has to operate in an indicated mode during holidays. The user interface shows when the schedule period is
active as the mode activated by this function (except for protections) can be changed by no-one. In order to control the system in a normal manner,
the holiday schedule period must be deactivated, i.e. zero values must be indicated or period dates must be changed. Up to ve holiday periods can
be indicated.
The winter/summer function is used to set upcoming cold periods, because some part of the system need to be protected against cold outdoor air.
During the winter period it is recommended to leave the unit on, therefore it is possible to set that the system switch-o󰀨 is blocked during the winter
period. Water heaters must be always on during the entire winter period.