iZZiFAST iZZi 300 ERV R Use and care manual

Air handling unit with heat recovery
iZZi 300 ERV R (L)
PL Assembly and user's manual

2
Table of contents
01 General information................................................. 3
01.01 Safety......................................................................3
01.02 Warranty and liability ...............................................3
01.03 Disposal...................................................................3
02 Product description ................................................ 3
02.01 2.1 Design of iZZi 300 ERV R air handling unit (right
version). 4
02.01.1 Rating plate ............................................................4
02.02 Recuperator operation method................................5
02.03 Bypass.....................................................................5
02.04 Enthalpy heat exchanger..........................................5
02.05 Freeze protection system ........................................6
03 Dane techniczne.......................................................6
03.01 Flow characteristics ................................................7
03.02 Technical drawing of the recuperator....................... 7
04 Scope of delivery..................................................... 8
04.01 Equipment...............................................................8
04.02 Optional equipment .................................................8
05 Planning....................................................................9
05.01 Methods of assembly ...............................................9
05.01.1 Vertical, on the floor ................................................9
05.01.2 Horizontal, on the floor ............................................9
05.01.3 On the wall...............................................................9
05.01.4 On a ceiling..............................................................9
05.02 Requirements for the assembly location ..................9
05.03 Electric connection .................................................9
05.04 Control panel ...........................................................9
05.05 Safe area ............................................................... 10
05.06 Anti-smog filter box - option.................................. 10
06 Assembly.................................................................11
06.01 Frame assembly...................................................... 11
06.02 Assembly of recuperator on frame .......................... 11
07 Automation............................................................. 12
07.01 IZZiFAST control engineering diagrams.................. 12
07.02 Control engineering revision...................................13
07.03 Touch panel ............................................................13
07.04 Ground-air heat exchanger .....................................13
07.05 Duct reheater ........................................................ 14
07.05.1 Electric reheater.................................................... 14
07.05.2 Water reheater .......................................................15
07.06 Duct cooler.............................................................15
07.06.1 Water duct cooler ...................................................15
07.07 Simultaneous connection of cooler and reheater. ...16
07.08 Preheater ...............................................................16
07.09 Humidity sensor (hygrostat) or doorbell switch button
for ventilation .........................................................17
07.10 CO (carbon dioxide) sensor or on/off button ...........17
07.11 Switch at the hood..................................................18
07.12 Fire alarm (control) panel ........................................18
08 User's manual for the controller with touch panel.. 19
08.01 Basic features of the controller...............................19
08.02 Main screen and operating mode presentation........19
08.03 STANDBY screen on the main panel ........................21
08.04 OPTIONS screen .....................................................21
08.05 Operating modes and performance settings............21
08.05.1 VENTILATION mode................................................21
08.05.2 OUT OF HOME mode................................................21
08.05.3 AIR PURIFICATION mode........................................22
08.05.4 AUTOMATIC mode ..................................................22
08.05.5 AUTOMATIC MODE SETTINGS
–WEEKLYPROGRAMME ........................................22
08.05.6 MANUAL SPEEDS AND CORRECTION SETTINGS.....22
08.05.6.1 Manual mode speeds .............................................22
08.05.6.2Programming of speeds used in the manual mode .22
08.05.6.3Software-based performance correction...............23
08.06 SETTINGS screen ..................................................23
08.06.1 Date and time settings...........................................24
08.06.2 Sound level and screen saver settings....................24
08.06.3 Language settings.................................................24
08.06.4 Inspection of filters condition................................24
08.06.5 Factory settings ....................................................25
08.06.6 Icon descriptions...................................................25
08.07 Peripheral devices and operation control...............25
08.07.1 Duct cooler operation control ................................25
08.07.2 Operation of the humidity sensor (hygrostat) or
doorbell switch button for ventilation.....................26
08.07.3 Duct cooler operation control ................................26
08.07.4 Ground-air heat exchanger (GWC) ..........................26
08.07.5 Control of bypass operation...................................26
08.07.6 Operation of CO sensor or "on/off" ventilation button
27
08.08 Information icon .................................................... 27
08.08.1 Contact ................................................................. 27
08.08.2 Ventilation system temperatures control screen.... 27
08.09 Alerts and messages..............................................28
08.09.1 Defrosting .............................................................28
08.09.2 Check the filters ....................................................28
08.09.3 Sensor damage......................................................28
08.09.4 Open cover ............................................................28
09 Service and maintenance...................................... 28
09.01 Filter replacement .................................................28
09.02 Removing the recuperator cover............................29
09.03 FAQ........................................................................29
10 Warranty conditions .............................................. 30

3
01 General information
Congratulations on purchasing the iZZi 300 ERV compact
recuperator. Please read the manual before the installation
of the equipment. Observation of these guidelines ensures
optimum performance and long service life. Each shipment is
thoroughly inspected before leaving the production facility.
01.01 Safety
Thisequipment should notbeoperatedbypersons(inparticular
children) with reduced mobility or with limited physical abilities
or people without proper sucient experience or knowledge
unless they are supervised or instructed by appropriate
persons (for safety reasons) on the method of safe use of the
equipment.
Children should use the equipment accompanied by adults to
ensure that they do not play with the product.
01.02 Warranty and liability
The manufacturer shall not be liable for any damages resulting
frommisuse,impropertransportorhandling.Note!Pleasecheck
that no damage occurred during transportation. Subsequent
complaints shall not be accepted! Check completeness of the
shipment prior to installation. List of elements is given in item
04.01. Selection of assembly screws and dowels depends on
the material of the wall! The manufacturer reserves the right
to introduce technical and colour changes! All dimensions are
given in mm! The warranty terms and conditions are given in
item 10.
The manufacturer shall not be responsible for any damages that
may result from:
xnon-observance of the operation, safety and maintenance
instructions given in this manual.
xinstallation not in accordance with the good building
practice and the recommendations given in the operating
instructions for the equipment
xuse of spare parts, which have not been delivered or
recommended by the manufacturer,
xcontamination of ventilation system,
xnormal wear and tear.
01.03 Disposal
Do not dispose of worn products with normal household waste.
They must be transferred to a special materials recovery facility
or the seller who provides such services.
Incorrect disposal of the product by the user is subject to
administrative penalties in accordance with
the applicable regulations.
02 Product description
iZZi 300 ERV is an air handling unit with heat recovery
intended to ensure safe, balanced, energy-ecient and
comfort ventilation in the residential buildings. For mechanical
ventilation with heat recovery a vitiated air with odour, e.g. from
the kitchen, bathroom, WC is extracted and the same amount of
fresh air is supplied to, among others, a living room, bedroom
and children's room.
A countercurrent membrane heat and moisture exchanger
(enthalpy heat exchanger), recovering both moisture and heat
from the extracted air, is used for heat recovery in iZZI 300 ERV.
It is recommended to use humidity sensors to monitor limit
value in the rooms where the humidity level is high.
Use of enthalpy heat exchanger ensures that it is not necessary
to connect the condensate outlet to the equipment. Lack
of condensate outdropping on the heat exchanger allows
its operation also during negative temperatures outside the
building. Therefore it is not equipped with a built-in preheater.
The compact housing is made of stainless steel sheet and has
universal mounting system: under the ceiling, on the wall or on
the floor. internal cladding is made of high-quality polyethylene
foam and ensures required thermal and noise insulation. iZZi
300 ERV recuperator has two service-free energy-ecient
direct current fans (EC) ensuring high available compression.
Standard equipment includes also built-in 100% automatic
bypass of heat exchanger. The unit is factory equipped with two
pleated filters, class M5 (ePM10 75%)

4
02.01 2.1 Design of iZZi 300 ERV R air handling unit (right version).
Note!Majorityof drawings,descriptionsand assemblyof therecuperatoraregivenforright(R) version.Forthe left (L)versionyou
shouldproceed inthe same way-unless otherwise stated.
8.7.
11.
10.
9.
12.
6.
5.
3.
2.
1.
13.
4.
1. Connecting nipple fi160
2. Transport handle
3. Support frame
4. Control panel
5. Access cover for control engineering
6. Rating plate
7. Catch of housing cover
8. Heat exchanger protection
9. Enthalpy heat exchanger
10. Bypass unit
11. M5x2 filter
12. Housing cover.
13. Legs
02.01.1 Rating plate
The rating plate is located on the upper wall of the housing,
next to electrical service lines (figure above). It is used for
identification of the product. The information contained herein
is needed for safe use of the product and service purposes. The
nameplate should not be covered or removed from the unit.

5
02.02 Recuperator operation method.
The equipment has been designed and manufactured as a unit intended for ventilation of the residential rooms with areas up to 100m
and allows maximum air exchange approx. 300 m of the air per hour. The recuperator should be selected not only for the area of the
given room, but also considering air exchange demands.
iZZi 300 ERV R
Right version
OUTDOOR AIR
SUPPLY AIR
EXTRACT AIR
EXHAUST AIR
iZZi 300 ERV L
Left version
OUTDOOR AIR
SUPPLY AIR
EXTRACT AIR
EXHAUST AIR
EXHAUST: used up air is exhausted from the rooms, that is kitchen, toiler or bathroom through AIR EXHAUST
EXHAUST VENT: air cooled down in the exchanger is extracted outside via EXHAUST VENT
INTAKE VENT: fresh air drawn from outside by a duct marked as INTAKE VENT is directed to heat exchanger
AIR SUPPLY: supplied air from outside, heated in heat exchanger is supplied to the rooms by the AIR SUPPLY
02.03 Bypass
The built-in automatic bypass allows used air to be discharged to the outside without a heat exchanger, so that heat is not released to
the supplied air. Such a solution allows using free-cooling phenomena during the summer. The bypass settings are described in item
08.07.5.
02.04 Enthalpy heat exchanger
The device is equipped with a counter-current enthalpy heat exchanger with a polymer membrane. Air removed from the building
gives the thermal energy and moisture back to the fresh air stream supplied to the building, without mixing. The membrane of heat
exchanger separates two air streams and have a thin, dense polymer barrier layer, allowing absorption of the water vapors and
penetration through it. At the same time, it blocks gases, volatile organic compounds and other pollutants. The material of the heat
exchanger ensures its high durability.
Membrane
Moisture
Energy
Contaminants
Gases
Supplied air
Extracted air

6
02.05 Freeze protection system
Freeze protection system protects heat exchanger against frost formation at low external temperatures. The use of specially designed
enthalpy heat exchanger, recovering the moisture in the iZZi 300 ERB recuperator, this phenomena can occur only during the very high
frosts, when the outdoor temperature drops below approx. minus 7°C. In such a case, the heat exchanger defrosting mode is activated
periodically. It is based on automatic lowering of speed of the air supply fan and activation of optional duct preheater (if connected).
03 Dane techniczne
Maximum air flow rate 300 m/h at 150 Pa
Eciency of heat recovery up to 95%
Heat exchanger type cross-flow counter-flow
Type of heat exchanger enthalpy (with moisture recovery)
Heat exchanger material polymer membrane
Eciency of moisture recovery up to 65%
Maximum power of the fans 170 W
Speeds 1st speed
(100 m3/h at 40 Pa)
2nd speed
(210 m3/h at 100 Pa)
3rd speed
(300 m3/h at 150 Pa)
Energy consumption 34 W 95 W 170 W
Sound power level emitted by housing
at a distance of 1 meter 39 dB(A) 51 dB(A) 55 dB(A)
Fans radial Redical with EC direct current motors (ebm-papst)
Energy eciency class
Bypass automatic, insulated, 100% of bypass of supplied air
Freeze protection system negative pressure, operating only below -7°C
Controller 3.2" LCD with colour touch panel
Connecting the controller to the device Shielded cable 4x0.5** (3 meters included in the set)
Filters pleated, class M5*** / ePM10 75%****
Diameter of connectors 4 x Ø160 mm
Condensate outflow none
Ingress protection IP 40
Insulation class I
Supply voltage 230V (AC), 50Hz
Weight (with dedicated frame) 33 kg
Dimensions (H xW xD) 310 x 850 x 641 mm
Optional peripheral devices
electrical duct preheater
electrical duct reheater
damper actuator ground-air heat exchanger
CO2 sensor and humidity sensor
duct cooler
* for a temperate climate according to Directive 2009/125/EC and European Commission Regulation No. 1254/2014
** over 10 m recommended 4x0.75
*** according to EN779
**** acc. to ISO 16890

7
03.01 Flow characteristics
Air stream [m³/h]
Speed 1
Speed 2
Speed 3
0 100
50
0
100
200
300
400
500
600
700
150 250
200 300 400
350
Static pressure [Pa]
03.02 Technical drawing of the recuperator
300
160
46
641
310
600
850

8
04 Scope of delivery
04.01 Equipment
3 mm
x6x4
5 mm
1 2
4 5 6 7 83
ba
04.02 Optional equipment
iZZiFAST 160 anti-smog filter box with a set of M5 and M9 filters
Description
1 Support frame
2 Recuperator on legs
3 Nipple (x4)
4 Screw M6 (x6)
5 Allen key bolt 4mm
6 Allen key bolt 5mm
7 Gloves (x2)
8Control panel (a)
with mounting box (b)

9
05 Planning
05.01 Methods of assembly
Use of enthalpy heat exchanger, which does not the require
discharge of condensate, allows distinguishing four methods of
recuperator foundation:
05.01.1 Vertical, on the floor
Note: additional height increases on your own.
05.01.2 Horizontal, on the floor
05.01.3 On the wall
Assembly on the wall should be carried out using a special frame
from a scope of delivery (1)
05.01.4 On a ceiling
Assembly on the wall should be carried out using a special frame
from a scope of delivery (1)
05.02 Requirements for the assembly location
The iZZi 300 ERV recuperator is intended for assembly in the
rooms where the temperature does not fall below 5°C, and
relative humidity does not exceed 70%.
The prepared substrate should ensure even and stable adhesion
of the recuperator. For proper operation, the manufacturer
recommends mounting on a solid wall/ceiling or, in the absence
of such surface, on a suitably reinforced surface which does not
transmit any vibrations.
05.03 Electric connection
Electrical service lines 230V with grounding (plug socket)
should be prepared in a maximum distance of 2.5 metres from
conductor's outlet from the recuperator.
05.04 Control panel
The enclosed control panel allows flush-mounting or wall-
mounting (using the enclosed dedicated mounting box) -
according to the drawings below. Factory supplied cable of the
controller has 3 metres.
Dimensions required for assembly directly on the wall:
76
73
99 6
10
17
Dimensions required for flush-mounting in the box:
93
27
17
62
15

10
05.05 Safe area
When planning the space for the installation of the
recuperator, please consider the appropriate free
and easily accessible space in front of and above the
recuperator for service and operation purposes.
* minimum distance required for filters replacement
requires disassembly of the front cover of the
recuperator (see item 09.02)
05.06 Anti-smog filter box - option
If additional filter box is used then it is necessary to plan additional space near the recuperator (from the side of air intake vent or air
supply to the rooms).
Note!Thearrangementof the boxesis shownfortheright (R) version;forthe left(L) versionyoushouldconsider reversed direction
³vÀð³Ü®ÈÀ˽ÀvȳÀưÃÈŬŮƛŬŮƿL˽ÀvȳÀ³½ÀvÈ³®È³ƿƛ
Air supply duct
of fresh air
Note:
Disassembled
filter on intake vent
Filter F9 (winter) /Filter F7* (summer)
M5 filter
Intake vent
1. On air intake
Note:
Disassembled M5 filter
Filter F9 (winter) / Filter F7* (summer)
Filter on air intake
of the recuperator
in its location
for the protection
of heat exchanger
Fresh air supply duct to the rooms
2. On air supply
* - option
Detailed information can be found in the filter box manual available at www.izzifast.pl.
400
min. 250*
600

11
06 Assembly
06.01 Frame assembly
1
4
3
6
11
2
5
8
06.02 Assembly of recuperator on frame
4
4
4
4
3
3
2
1
1
1
2
5
2
2
2
4
5
5
5
5
ac
b

12
07 Automation
07.01 IZZiFAST (model KR-04) control engineering diagrams
M2 GND B A I1 I2 G I3 I4 G I5 G
A1 G A2 G A3 G A4 T6 G GT5 T4 G GT3 T2 G GT1W1 G GW2
VCC GND12V B A VCC
M2M1M1
LLPE PENN L LPENNLN N0 COM N0 NCCOM N0 NCCOM N0 COM
1
171819202122232425
23 4 56789
10 11 12 13 1514 16
1. Bypass actuator
2. Damper iZZiFAST GWC
3. iZZiFAST touch panel
4. Inactive connector
5. Humidity sensor (hygrostat) or doorbell switch button for
ventilation (digital input)
6. CO2 (carbon dioxide) sensor or on/off button (digital
input)
7. "Hood" function switch (digital input)
8. Signal from the fire alarm control panel (digital input)
9. Side flap opening signal
10. Air supply fan control A1
Exhaust fan control A2
11. 0-10V analogue control of the two-way valve of the heater
and cooler
12. Inactive connector
13. Inactive connector
14. Duct outdoor temperature sensor (for ground-air heat
exchanger system)
15. Duct sensor downstream of the heater/cooler
16. Temperature sensors:
T1 - on the air intake
T2 – on the exhaust vent
T3 - on the air supply
T4 - on the air exhaust
17. Cooler control (potential-free contact)
18. Control of cooler's solenoid valve (potential-free contact)
19. Control of heater's solenoid valve (potential-free contact)
20. Control of the electric reheater (potential-free contact)
21. 230V actuator of ground-air heat exchanger
22. Power supply of preheater
23. Power supply of exhaust fan
24. Power supply of supply fan
25. Equipment supply

13
07.02 Control engineering revision
Automation of the recuperator is located in its upper part.
Remove 4 screws and protective cover to get access to it:
M4
07.03 Touch panel
Automation cooperates with dedicated iZZiFAST touch panel
communicating with the controlled via the screened 4-wire
conductor. Due to the distances between the control panel and
the automation module located in the air handling unit, often
exceeding 10 m, it is necessary to use conductors with a cross-
section 4x0.75 mm2 with a shield. The shield has a significant
impact on the elimination of interference to which the data
transmission cable is exposed. It should be connected to the PE
terminal of the air handling unit.
Installation of the touch panel - see item 05.04.
Description and features of the controller - see item 08.
M2 GND B A VCC GND12V BM2
23 4
IZZiFAST panel
GND B A VCC
PE (to housing)
shielded control cable LiYCY 4x0.5mm2 (for connections longer than 10m
LIYCY 4x0.75mm2 , in shield)
Fig. Connection diagram of the touch panel to the automation
board.
07.04 Ground-air heat exchanger
The iZZiFAST controller can cooperate with a ground-air
heat exchanger (GWC) by controlling the actuator of control
damper (switching between the ground and wall intake vent)
or by activation of the circulation pump in the glycol-based
heat exchanger (GGWC). For correct operation, it is necessary
to connect additional duct sensor installed on the duct of the
intake vent (see the drawing below).
Activation and setting of ground-air heat exchanger's operation
- see item 08.07.4.
T6
T6 G GT5
1514
Outdoor temperature sensor
on duct of the air intake
MAX 500mm
Duct temperature sensor
Actuator of
ground-air
heat exchanger
RECUPERATOR
iZZi 300 ERV R
Wall air
vent
Garden
intake vent
GWC damper
INTAKE VENT DUCT
Rys. Connection diagram of the outdoor temperature sensor on
the intake vent duct
M2 GND B A
M2M1M1
12 3
BA
Damper
iZZiFAST
GWC
control cable LiYY 2x0.5mm
Fig. Connection diagram for iZZiFAST GWC damper

14
LLPE PENN L LPENNLN
N
2122232425
1
2
3
L
L
N
Actuator of
ground-air heat
exchanger
current cable OMY 3x0.5mm
Specification of damper actuator:
xAC 230V
xclose/open
Fig. Connection diagram for 230V actuator of control damper of
the ground-air heat exchanger
LNLN N0 COM
N
202122
1
2
3
Pump of
glycol based
heat
exchanger
(GGWC)
L
N
PE
PE
current cable OMY 3x0.5mm
Fig. Connection diagram of circulation pump of the ground-air
heat exchanger
07.05 Duct reheater
07.05.1 Electric reheater
The iZZiFAST controller supports control of electric duct
reheater used to heat up the air supplied to the building.
Automation allows controlling on/off of the electrical heater or
a heater smoothly controlled by 0-10V signal. It is required to
connect additional duct sensor, installed downstream of the
heater (see drawing) to ensure correct operation.
Activation and setting of the heater's operation - see item
08.07.1.
T5
T6 G GT5
1514
Sensor downstream
of the heater
RECUPERATOR
iZZi 300 ERV R
AIR
SUPPLY
DUCT
SECONDARY
HEATER
Duct
temperature sensor
air supply to rooms
800mm-1500mm
Fig. Connection diagram of the temperature sensor
downstream of the electric reheater.
L N0 COM N0
20
1 2 L N
single-phase heater
LNPE
230V / 50Hz
Permission
supply for work
Power
of the heater
control cable LiYY 2x0.5mm
current wire 3x1.5mm
Fig. Connection diagram of the electric reheater 1-phase on/off
with power from 1.0 kW to 3.0 kW.
L N0 COM N0
20
1 2 L1 L2 N
L2 L1 N PE
2-stage heater
400V / 50Hz
Permission
supply for work
Power
of the heater
control cable LiYY 2x0.5mm
current wire 4x2.5mm
Fig. Connection diagram of the electric reheater 2-phase on/
off with power from 3.0 kW to 6.0 kW.

15
07.05.2 Water reheater
The iZZiFAST controller supports control of the water reheater
used to heat up the air supplied to the building. Automation
allows controlling a 0-10V two-way valve or electrothermal
linear valve. It is required to connect additional duct sensor,
installed downstream of the heater (see drawing) to ensure
correct operation.
Activation and setting of the heater's operation - see item
08.07.1.
T5
T6 G GT5
1514
Sensor downstream
of the heater
RECUPERATOR
iZZi 300 ERV R
AIR
SUPPLY
DUCT
SECONDARY
HEATER
Duct
temperature sensor
air supply to rooms
800mm-1500mm
Fig.Connection diagram of the temperature sensor
downstream of the electric reheater.
LLPE PENN L LPENNLNN0COM
202122232425
L
NElectro-thermal
actuator
LNPE
230V / 50Hz
control cable LiYY 2x0.5mm
current wire 4x2.5mm
Fig. Connection diagram of the water heater controlled with an
electrothermal linear actuator.
T5
G
A3 G A4 T6 G GT5 T
4
W1 G GW2
11 12 13 1514
1 (-)
2 (+)
3 (Y)
5 (U)
~ +
-
0-10V
GND
Power supply unit
24V AC/DC
Actuator
Duct sensor downstream
of water heater
control cable LiYY 2x0.5mm
Fig. Connection diagram of a 0-10V water heater controlled
with a valve.
07.06 Duct cooler
07.06.1 Water duct cooler
The iZZiFAST controller supports control of water cooler
intended for cooling down of air supplied to the building.
Automation allows you to control a 0-10V two-way valve.
It is required to connect additional duct sensor, installed
downstream of the cooler (see drawing) to ensure correct
operation.
Activation and setting of cooler's operation - see item 08.07.3.
T5
T6 G GT5 T
4
G
1514
Duct sensor downstream
of water heater
RECUPERATOR
iZZi 300 ERV R
AIR
SUPPLY
DUCT
COOLER
Duct
temperature sensor
air supply
to rooms
800mm-1500mm
Fig. Connection diagram of the temperature sensor
downstream of the water cooler.

16
G
A3 G A4 TW1 G GW2
11 12 13
1 (-)
2 (+)
3 (Y)
5 (U)
~ +
-
0-10V
GND
Power supply unit
24V AC/DC
Actuator
control cable LiYY 2x0.5mm
Fig. Connection diagram of a 0-10V water cooler controlled
with 0-10V valve.
07.07 Simultaneous connection of cooler and reheater.
The iZZiFAST controller allows connecting the heater and
secondary cooler at the same time. The connection is made
according to the diagrams described in items 07.05.1 and
07.05.2. In such a case it is necessary to install only one
additional temperature sensor located on air supply duct
downstream of the heater and duct cooler.
T5
T6 G GT5
1514
Sensor downstream
of the heater
RECUPERATOR
iZZi 300 ERV R
AIR
SUPPLY
DUCT
COOLER HEATER
Duct
temperature sensor
air supply
to rooms
800mm-1500mm
Fig. Connection diagram of the temperature sensor
downstream of the cooler and heater.
07.08 Preheater
TheiZZiFASTcontroller supportstheoperation ofaductelectric
preheater intended for defrosting of the heat exchanger during
the winter when the outdoor temperatures are low. The heater
switches on automatically when the freeze protection system is
in operation. Automation allows controlling and direct supply of
the heater of power up to 500W or control of heater's contactor
of power over 500W.
L
LNLN
2122
L
PE
N
AUTO RESET
Max 500 W
230V
Grounding
to the housing
of the equipment
electrical diagram of the exemplary heater
Fig. Connection diagram of the preheater of power up to 500 W.
L
LNLN
2122
1 2 L N
single-phase heater
LNPE
230V / 50Hz
Control supply
of a contractor
Power
of the heater
Fig. Connection diagram of the electrical reheater with power
over 500W.

17
07.09 Humidity sensor (hygrostat) or doorbell switch
button for ventilation
The iZZiFAST controller may be equipped with an external
humidity sensor and a doorbell switch button to a digital input in
the automation of the recuperator. Cooperation with an external
humidity sensor or doorbell switch button is based on sending a
pulse (shorting of input to the ground) to the measuring module
located inside the air handling unit.
Activation and description of the operation of the humidity
sensor / ventilation's doorbell switch button - see item 08.07.2.
I1 I2 G I3 I4 G I5 G
56 7 8 9
Ventilation at 80%
RH%>
Fig. Humidity regulator connection diagram.
I1 I2 G I3 I4 G I5 G
56 7 8 9
Ventilation at 80%
Fig. Connection diagram of the doorbell (impulse) switch
button.
07.10 CO (carbon dioxide) sensor or on/off button
The iZZiFAST controller supports a connection of CO sensor
and an on/off button for ventilation to the normally open digital
input in the recuperator automation. Cooperation with internal
CO sensor or doorbell switch button is based on an impulse
(shorting of input to the ground) to measuring module located
outside of air handling unit.
Activation and description of the operation of the CO sensor /
ventilation's button - see item 08.07.6.
I1 I2 G I3 I4 G I5 G
56 7 8 9
Ventilation at 100%
CO>
Fig. Connection diagram of CO sensor.
I1 I2 G I3 I4 G I5 G
56 7 8 9
Ventilation at 100%
Fig. Connection diagram of the on/off ventilation button.

18
07.11 Switch at the hood
The iZZiFAST controller supports cooperation with the kitchen
hood by connecting the switch to the digital input in the
recuperator automation. Cooperation with a switch on the hood
is based on an impulse (short-circuit of input to the ground) to
the measuring module located outside the air handling unit.
When the signal is supplied the recuperator starts operation
in the following mode: air supply 100%, air exhaust 30% of
capacity.
I1 I2 G I3 I4 G I5 G
56 7 8 9
Fig. Connection diagram of the hood switch.
07.12 Fire alarm (control) panel
The iZZiFAST controller can cooperate with the fire alarm
control panel by connecting it to a normally open digital input
in the recuperator's automation system. Cooperation with a fire
alarm control panel is based on an impulse (shorting of input
to the ground) to the measuring module located outside the air
handling unit. Recuperator stops operation when the signal is
sent.
I1 I2 G I3 I4 G I5 G
56 7 8 9
Fig. Connection diagram of the hood switch.

19
08.01 Basic features of the controller
xControl of operation of the air handling unit in automatic
mode (operation acc. to weekly mode) or manual mode (3
levels of performance)
xOption to correct air supply capacity in relation to exhaust.
xMaster modes that are "ventilation", "air purification" and
"out of home" mode
xTURBO function activated with doorbell switch button, by
external humidity regulator or CO sensor
xDigital inputs for connection of ventilation button, hood and
fire alarm control panel
xControl of actuator of the damper of the ground-air heat
exchanger
xReal-time clock
xSettings memory after a power failure
xReturn to factory settings option
xTime-dependent alarm informing about the replacement of
the filters (information every 90 days)
xAdjustment of the intensity of the backlight of the
screensaver
xAdjustment of the volume of key sounds
xDedicated housing made of ABS with a box equipped with
magnetic holder
xMenu available in Polish, English, German, Dutch, Russian,
Hungarian, Slovak and French
08.02 Main screen and operating mode presentation
The main screen (see figure) contains basic information on the
operation of the ventilation system. It displays, among others:
the capacity of air supply fan 1flow rate of air exhaust fan
3temperature of air supply fan 7and currently selected
operating mode of the recuperator 5. Icon 2allows you to
quickly switch to „Operating modes and performance settings”
screen (see item 08.05), and icon 7switches to „Control of
temperatures of ventilation system” (see item 08.08.02). The
main screen also contains information about the status of
the connected peripheral devices 13 - 18 . When the device is
connected its grey icon is visible on the display. Activation of
the given function of the controller results in change of colour
of the icon in the bottom part of the screen (see item 08.07).
The main window contains also the following buttons to
facilitate operation of the recuperator: OUT OF HOME 9
, AUTOMATIC MODE 10 , AND VENTILATION 11 , that allow for
quick and easy change of recuperator operating mode. Click it
once again to return to the previous programme. The keys 4
, can be used to switch between one of the three programmed
speeds. Select icon OPTIONS 12 to go to the other functions
and settings of the controller. Their descriptions are avaliable
in the further part of the manual – see item 08.04.
08 User's manual for the controller with touch panel
1 2 3 4
5
8
13 14 15 16 17 18
910 11 12
7
6
AUTO MODE
1. Capacity of air supply fan
2. Change of operating mode - switch
to screen: "Operating modes and
performance settings"
3. Exhaust fan performance
4. Change of operating modes:
Automatic  SPEED 1  SPEED 2  SPEED 3
5. Message field
(displays current mode of operation or
alerts)
6. Date and time
7. It displays temperature of supplied
air and button used to switch to the
screen "control of temperatures of the
ventilation system"
8. Switch to "Standby" mode
9. Switch to "Out of home" mode
10. Switch to "Automatic" mode
11. Switch to “Ventilation” mode
12. Switch to "Options" screen
13. Duct heater - equipment status
14. Duct cooler - unit equipment
15. Bypass - equipment status
16. Humidity sensor (hygrostat) - device
status
17. Carbon dioxide sensor - device status
18. Ground-air heat exchanger - equipment
status
Fig. Control panel with main screen of the display

20
Structure of the touch panel functions
AUTO MODE
item 08.03
item 08.06.1
item 08.06.2
item 08.06.3
item 08.06.4
item 08.06.5
item 08.06.6
item 08.07.1
item 08.07.2
item 08.07.3
item 08.07.4
item 08.07.5
item 08.07.6
item 08.08.1
item 08.05.4 item 08.05.6.1
item 08.05.6.1 item 08.05.6.1
item 08.08.2
item 08.05.1
item 08.05.2
item 08.05.3
item 08.05.4
item 08.05.5
item 08.05.6
item 08.05.6.1
item 08.05.6.1
item 08.05.6.1
item 08.05.6.2
item 08.05.6.3
item 08.05.6.3
see item 08.05 see item 08.06 see item 08.07 see item 08.08