Komfovent C5 User manual

21°C
22°C
20°C
ADDITIONAL ZONE CONTROL C5
INSTALLATION MANUAL

2UAB KOMFOVENT reserves the right to make changes without prior notice
ZC-19-02
TABLE OF CONTENTS
1. INTRODUCTION ...........................................................................................3
1.1. Application examples for Verso Standard units .............................................................3
1.2. Application examples for Verso Pro units...................................................................4
2. INSTALLATION.............................................................................................6
2.1. Zone module connection to Verso Standard units...........................................................7
2.2. Zone module connection to Verso Pro units ................................................................8
3. CONFIGURATION AND WIRING ..........................................................................9
3.1. Zone module conguration for water heater/cooler ........................................................10
3.2. Zone module conguration for modulating type direct expansion (DX) units ...............................11
3.3. Zone module conguration for ON/OFF type direct expansion (DX) units ...................................12
3.4. Zone module conguration for additional electrical heater ................................................13
4. SETTINGS ON THE C5 CONTROLLER ...................................................................14

3
UAB KOMFOVENT reserves the right to make changes without prior notice
ZC-19-02
The equipment and functions described in this manual is to be installed by qualied professionals, who has enough experi-
ence and knowledge about electromechanical equipment and can work safely, according to local laws and regulations. Fail-
ure to comply with instructions in this manual will void the warranty of the equipment, and may result in damage to prop-
erty or injuries to people. All illustrations in this manual are for explanation purposes and may dier from actual product.
Additional zone control function is available for Verso Standard and Verso Pro air handling units with C5 controller. This
function allows to have up to three dierent temperature zones in the same ventilation system. Temperature in the main
zone will be maintained by the existing heaters/coolers of the AHU. Dierent temperatures in two additional zones can be
maintained, by connecting two zone modules, which will control additional duct mounted heaters/coolers and temperature
sensors connected. Temperature set-point for each independent temperature zone, will be available from the control panel
of the AHU.
If needed, zone modules can also control additional heaters/coolers to be used in the same airow as additional steps, when
main heater/cooler power is not enough. In that case additional temperature sensors is not needed and only one main tem-
perature set-point is used.
• Three independent temperature zones
• Two independent temperature zones and pre-heater
1. INTRODUCTION
1.1. Application examples for Verso Standard units
Independent VERSO STANDARD
Aditional heating/cooling steps VERSO STANDARD
Zone 1
module
Zone 2
module
20°C
C5
MAIN ZONE
Zone 1
module
Zone 2
module
0°C
22°C
20°C
C5
MAIN ZONE
PRE-HEATER
ZONE 1
Zone 1
module
Zone 2
module
21°C
22°C
20°C
C5
MAIN ZONE
ZONE 1
ZONE 2
Independent VERSO PRO
PM
PM
23°C
22°C
20°C
PD2
VM1
C5
PM
MAIN ZONE
ZONE 1
ZONE 2
Zone 1
module
Zone 2
module
21°C
22°C
20°C
PD2
VM1
PM
C5
MAIN ZONE
ZONE 1
ZONE 2
Zone 1
module
Zone 2
module
20°C
PD2
VM1
C5
PM
MAIN ZONE
PM PM 20°C
PD2
VM1
C5
PM
MAIN ZONE
Independent VERSO PRO
Zone 1
module
Zone 2
module
0°C
22°C
MAIN
ZONE
PRE-HEATER
ZONE 1
20°C
PD2
VM1
C5
PM
Aditional heating/cooling steps VERSO PRO
Independent VERSO STANDARD
Aditional heating/cooling steps VERSO STANDARD
Zone 1
module
Zone 2
module
20°C
C5
MAIN ZONE
Zone 1
module
Zone 2
module
0°C
22°C
20°C
C5
MAIN ZONE
PRE-HEATER
ZONE 1
Zone 1
module
Zone 2
module
21°C
22°C
20°C
C5
MAIN ZONE
ZONE 1
ZONE 2
Independent VERSO PRO
PM
PM
23°C
22°C
20°C
PD2
VM1
C5
PM
MAIN ZONE
ZONE 1
ZONE 2
Zone 1
module
Zone 2
module
21°C
22°C
20°C
PD2
VM1
PM
C5
MAIN ZONE
ZONE 1
ZONE 2
Zone 1
module
Zone 2
module
20°C
PD2
VM1
C5
PM
MAIN ZONE
PM PM 20°C
PD2
VM1
C5
PM
MAIN ZONE
Independent VERSO PRO
Zone 1
module
Zone 2
module
0°C
22°C
MAIN
ZONE
PRE-HEATER
ZONE 1
20°C
PD2
VM1
C5
PM
Aditional heating/cooling steps VERSO PRO

4UAB KOMFOVENT reserves the right to make changes without prior notice
ZC-19-02
• Additional heating/cooling steps with one temperature setpoint
• Three independent temperature zones
• Three independent temperature zones with duct mounted electrical heater sections*
1.2. Application examples for Verso Pro units
* If complete Verso Pro electrical heater section is used, additional zone control modules are not needed and PM boards inside of electrical heater section
will be used for the same purpose.
Independent VERSO STANDARD
Aditional heating/cooling steps VERSO STANDARD
Zone 1
module
Zone 2
module
20°C
C5
MAIN ZONE
Zone 1
module
Zone 2
module
0°C
22°C
20°C
C5
MAIN ZONE
PRE-HEATER
ZONE 1
Zone 1
module
Zone 2
module
21°C
22°C
20°C
C5
MAIN ZONE
ZONE 1
ZONE 2
Independent VERSO PRO
PM
PM
23°C
22°C
20°C
PD2
VM1
C5
PM
MAIN ZONE
ZONE 1
ZONE 2
Zone 1
module
Zone 2
module
21°C
22°C
20°C
PD2
VM1
PM
C5
MAIN ZONE
ZONE 1
ZONE 2
Zone 1
module
Zone 2
module
20°C
PD2
VM1
C5
PM
MAIN ZONE
PM PM 20°C
PD2
VM1
C5
PM
MAIN ZONE
Independent VERSO PRO
Zone 1
module
Zone 2
module
0°C
22°C
MAIN
ZONE
PRE-HEATER
ZONE 1
20°C
PD2
VM1
C5
PM
Aditional heating/cooling steps VERSO PRO
Independent VERSO STANDARD
Aditional heating/cooling steps VERSO STANDARD
Zone 1
module
Zone 2
module
20°C
C5
MAIN ZONE
Zone 1
module
Zone 2
module
0°C
22°C
20°C
C5
MAIN ZONE
PRE-HEATER
ZONE 1
Zone 1
module
Zone 2
module
21°C
22°C
20°C
C5
MAIN ZONE
ZONE 1
ZONE 2
Independent VERSO PRO
PM
PM
23°C
22°C
20°C
PD2
VM1
C5
PM
MAIN ZONE
ZONE 1
ZONE 2
Zone 1
module
Zone 2
module
21°C
22°C
20°C
PD2
VM1
PM
C5
MAIN ZONE
ZONE 1
ZONE 2
Zone 1
module
Zone 2
module
20°C
PD2
VM1
C5
PM
MAIN ZONE
PM PM 20°C
PD2
VM1
C5
PM
MAIN ZONE
Independent VERSO PRO
Zone 1
module
Zone 2
module
0°C
22°C
MAIN
ZONE
PRE-HEATER
ZONE 1
20°C
PD2
VM1
C5
PM
Aditional heating/cooling steps VERSO PRO
Independent VERSO STANDARD
Aditional heating/cooling steps VERSO STANDARD
Zone 1
module
Zone 2
module
20°C
C5
MAIN ZONE
Zone 1
module
Zone 2
module
0°C
22°C
20°C
C5
MAIN ZONE
PRE-HEATER
ZONE 1
Zone 1
module
Zone 2
module
21°C
22°C
20°C
C5
MAIN ZONE
ZONE 1
ZONE 2
Independent VERSO PRO
PM
PM
23°C
22°C
20°C
PD2
VM1
C5
PM
MAIN ZONE
ZONE 1
ZONE 2
Zone 1
module
Zone 2
module
21°C
22°C
20°C
PD2
VM1
PM
C5
MAIN ZONE
ZONE 1
ZONE 2
Zone 1
module
Zone 2
module
20°C
PD2
VM1
C5
PM
MAIN ZONE
PM PM 20°C
PD2
VM1
C5
PM
MAIN ZONE
Independent VERSO PRO
Zone 1
module
Zone 2
module
0°C
22°C
MAIN
ZONE
PRE-HEATER
ZONE 1
20°C
PD2
VM1
C5
PM
Aditional heating/cooling steps VERSO PRO

5
UAB KOMFOVENT reserves the right to make changes without prior notice
ZC-19-02
• Two independent temperature zones and pre-heater
• Additional heating/cooling steps with one temperature setpoint
• Additional heating/cooling steps with duct mounted electrical heater sections* and one temperature setpoint
* If complete Verso Pro electrical heater section is used, additional zone control modules are not needed and PM boards inside of electrical heater section
will be used for the same purpose.
Independent VERSO STANDARD
Aditional heating/cooling steps VERSO STANDARD
Zone 1
module
Zone 2
module
20°C
C5
MAIN ZONE
Zone 1
module
Zone 2
module
0°C
22°C
20°C
C5
MAIN ZONE
PRE-HEATER
ZONE 1
Zone 1
module
Zone 2
module
21°C
22°C
20°C
C5
MAIN ZONE
ZONE 1
ZONE 2
Independent VERSO PRO
PM
PM
23°C
22°C
20°C
PD2
VM1
C5
PM
MAIN ZONE
ZONE 1
ZONE 2
Zone 1
module
Zone 2
module
21°C
22°C
20°C
PD2
VM1
PM
C5
MAIN ZONE
ZONE 1
ZONE 2
Zone 1
module
Zone 2
module
20°C
PD2
VM1
C5
PM
MAIN ZONE
PM PM 20°C
PD2
VM1
C5
PM
MAIN ZONE
Independent VERSO PRO
Zone 1
module
Zone 2
module
0°C
22°C
MAIN
ZONE
PRE-HEATER
ZONE 1
20°C
PD2
VM1
C5
PM
Aditional heating/cooling steps VERSO PRO
Independent VERSO STANDARD
Aditional heating/cooling steps VERSO STANDARD
Zone 1
module
Zone 2
module
20°C
C5
MAIN ZONE
Zone 1
module
Zone 2
module
0°C
22°C
20°C
C5
MAIN ZONE
PRE-HEATER
ZONE 1
Zone 1
module
Zone 2
module
21°C
22°C
20°C
C5
MAIN ZONE
ZONE 1
ZONE 2
Independent VERSO PRO
PM
PM
23°C
22°C
20°C
PD2
VM1
C5
PM
MAIN ZONE
ZONE 1
ZONE 2
Zone 1
module
Zone 2
module
21°C
22°C
20°C
PD2
VM1
PM
C5
MAIN ZONE
ZONE 1
ZONE 2
Zone 1
module
Zone 2
module
20°C
PD2
VM1
C5
PM
MAIN ZONE
PM PM 20°C
PD2
VM1
C5
PM
MAIN ZONE
Independent VERSO PRO
Zone 1
module
Zone 2
module
0°C
22°C
MAIN
ZONE
PRE-HEATER
ZONE 1
20°C
PD2
VM1
C5
PM
Aditional heating/cooling steps VERSO PRO
Independent VERSO STANDARD
Aditional heating/cooling steps VERSO STANDARD
Zone 1
module
Zone 2
module
20°C
C5
MAIN ZONE
Zone 1
module
Zone 2
module
0°C
22°C
20°C
C5
MAIN ZONE
PRE-HEATER
ZONE 1
Zone 1
module
Zone 2
module
21°C
22°C
20°C
C5
MAIN ZONE
ZONE 1
ZONE 2
Independent VERSO PRO
PM
PM
23°C
22°C
20°C
PD2
VM1
C5
PM
MAIN ZONE
ZONE 1
ZONE 2
Zone 1
module
Zone 2
module
21°C
22°C
20°C
PD2
VM1
PM
C5
MAIN ZONE
ZONE 1
ZONE 2
Zone 1
module
Zone 2
module
20°C
PD2
VM1
C5
PM
MAIN ZONE
PM PM 20°C
PD2
VM1
C5
PM
MAIN ZONE
Independent VERSO PRO
Zone 1
module
Zone 2
module
0°C
22°C
MAIN
ZONE
PRE-HEATER
ZONE 1
20°C
PD2
VM1
C5
PM
Aditional heating/cooling steps VERSO PRO

6UAB KOMFOVENT reserves the right to make changes without prior notice
ZC-19-02
* If complete Verso Pro electrical heater section is used, additional zone control modules are not needed and PM boards inside of electrical heater section
will be used for the same purpose.
2. INSTALLATION
For additional zone temperature control it is needed:
a) Zone module*
b) Supply air temperature sensor (for independent temperature zones or pre-heater control)
c) Return water temperature sensor (for water heater, when frost protection of the coil is needed)
d) Duct mounted heating/cooling device with additional components needed for its operation.
e) Connection cables
Zone module box can be installed in any place near external duct mounted heater/cooler, which will be controlled. It should
be prevented from direct water drops and sun. All the cables going in/out of the zone module box must be sealed ensuring
protection from humidity and dust.
When temperature maintenance is needed in dierent (independent) temperature zones, supply temperature sensor must
be installed after the heating/cooling device. In cases if zone module is used to control a preheater, temperature sensor must
be installed between preheater and the AHU. Supply temperature sensor should be mounted in the straight air duct after
heating/cooling device (or pre-heater) at a distance of at least of two duct diameters (or two diagonals of the rectangular
duct). In cases if zone module is used to control a preheater, temperature sensor must be installed between preheater and
the AHU. For outdoor units, when choosing a place for temperature sensor placement, please avoid direct sunlight which
can aect temperature readings.
a) b) c)
D
>2D
When water heater is used as a heater or pre-heater, return water temperature sensor must be installed on the return water
pipe as close to the coil as possible and must be properly insulated, thus the surrounding temperature will not aect its
measurement. This sensor is used for frost protection of the water coil. If there is no need for frost protection (for example
ethylene glycol is used as a medium instead of water), return water sensor will not be used.

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UAB KOMFOVENT reserves the right to make changes without prior notice
ZC-19-02
2.1. Zone module connection to Verso Standard units
To Verso Standard AHU zone module must be connected to external connection terminals of C5 controller board. Depend-
ing on the AHU model, C5 board is located in the heat exchanger section or in the automation box (for C5 board position
please refer to the “Verso Standard installation manual”). Also external 24 VDC power supply is needed.
CAT5 or similar twisted pair cable is recommended for the connection. If more than one zone module will be used, the sec-
ond module can be connected in parallel from the C5 board or from the rst zone module. Maximum length of the cable
from C5 board to the last zone module cannot exceed 150 m.
C5 controller
board
Zone module 1
(PM board)
Zone module 2
(PM board)
9
10
11
12
A
B
+24V
GND
9
10
11
12
A
B
+24V
GND
External power
supply
24V DC 1A
+
-
C5 controller
board 1
2
3
B
A
GND

8UAB KOMFOVENT reserves the right to make changes without prior notice
ZC-19-02
2.2. Zone module connection to Verso Pro units
To Verso Pro unit zone module must be connected to connection box PD2. Connection box is located in the supply fan
section, xed on the wall near the supply air outlet. Depending on the AHU model, inside of the PD2 box it can already be
connected cable for electrical heater section (please refer to the wiring diagram of the exact unit). In that case zone module
cable is connected to the same contacts, without disconnecting electrical heater cable.
CAT5 or similar twisted pair cable is recommended for the connection. If more than one zone module will be used, the
second module can be connected in parallel from the PD2 box or from the rst zone module. Maximum length of the cable
from C5 board to the last zone module cannot exceed 150 m.
Zone control module is not needed, if complete Verso Pro electrical heater section is used as additional temperature zone
heater or additional heating step (see application examples in section 1.2.). In such case the electrical wiring is the same as
above, but cable from PD2 box is connected directly to the PM board located inside of electrical heater.
PD2 connection box
Zone module 1
(PM board)
Zone module 2
(PM board)
PD2
connection box
1
2
3
4
9
10
11
12
A
B
+24V
GND
9
10
11
12
A
B
+24V
GND
+24V
GND
A
B

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UAB KOMFOVENT reserves the right to make changes without prior notice
ZC-19-02
3. CONFIGURATION AND WIRING
Depending on the application, dierent zone module conguration is available. Conguration is made by
DIP-switches on the electronic board of the zone module. SW1 switch is intended for zone number selection and SW2 switch
is for heater/cooler conguration.
At rst assign zone number to the zone module by conguring SW1 DIP-switches as follows:
ON
ON
1234567 12
ON
ON
1234567 12
SW1
SW2
DIP - switches
SW1
Zone 1
Zone 2
ON
ON
1 2
1 2
Water heater/cooler
ON
1234567
Heating
ON
1234567
Cooling
ON
1234567
Heating+Cooling
ON
1234567
Combi-coil
(heating/cooling)
ON
1234567
Heating
ON
1234567
Cooling
ON
1234567
Heating+Cooling
ON
1234567
Combi-coil
(heating/cooling)
SW2
Without frost protection
With frost protection
Modulating DX
ON
1234567
Universal
(0..10 V)
ON
1234567
Temperature setpoint
(11..50°C)
ON
1234567
Daikin
(0..5..10 V)
SW2
On/O DX with reverse
ON
1234567
1 step
ON
1234567
2 step
ON
1234567
3 step
ON
1234567
4 step
ON
1234567
1 step
ON
1234567
2 step
ON
1234567
3 step
ON
1234567
4 step
SW2
Sequence
Binary
On/O DX without reverse
ON
1234567
1 step
ON
1234567
2 step
ON
1234567
3 step
ON
1234567
4 step
ON
1234567
1 step
ON
1234567
2 step
ON
1234567
3 step
ON
1234567
4 step
SW2
Sequence
Binary

10 UAB KOMFOVENT reserves the right to make changes without prior notice
ZC-19-02
Electrical wiring of external components:
SW1
Zone 1
Zone 2
ON
ON
1 2
1 2
Water heater/cooler
ON
1234567
Heating
ON
1234567
Cooling
ON
1234567
Heating+Cooling
ON
1234567
Combi-coil
(heating/cooling)
ON
1234567
Heating
ON
1234567
Cooling
ON
1234567
Heating+Cooling
ON
1234567
Combi-coil
(heating/cooling)
SW2
Without frost protection
With frost protection
Modulating DX
ON
1234567
Universal
(0..10 V)
ON
1234567
Temperature setpoint
(11..50°C)
ON
1234567
Daikin
(0..5..10 V)
SW2
On/O DX with reverse
ON
1234567
1 step
ON
1234567
2 step
ON
1234567
3 step
ON
1234567
4 step
ON
1234567
1 step
ON
1234567
2 step
ON
1234567
3 step
ON
1234567
4 step
SW2
Sequence
Binary
On/O DX without reverse
ON
1234567
1 step
ON
1234567
2 step
ON
1234567
3 step
ON
1234567
4 step
ON
1234567
1 step
ON
1234567
2 step
ON
1234567
3 step
ON
1234567
4 step
SW2
Sequence
Binary
3.1. Zone module conguration for water heater/cooler
Zone module can control following types of duct mounted water heaters/coolers:
• Water heating coil – separate water heater with three way valve actuator and circulation pump
• Water cooling coil – separate water cooler with three way valve actuator and circulation pump
• Water heating and water cooling coils at the same time – two water coils (one for heating and one for cooling), two
three way valve actuators and two circulation pumps.
• Combi-coil – the same one water coil, one three way valve and one circulation pump will be used for heating and for
cooling. Additional input is needed to switch between heating/cooling modes (for example from the thermostat or
signal from boiler).
If water heaters/coolers are intended to be used in negative air temperatures frost protection is needed. For this purpose
return water sensor must be installed (see section 2) and SW2 DIP switches congured accordingly. For extra protection,
additional capillary thermostat can also be connected. Frost protection is not needed if antifreeze solution (for example
ethylene glycol) is used as heating/cooling medium in the coils.
*Only with compatible DX unit models.
1
GND
+24V
0..10V
GND GND GND
A
B
+24V +24V
0..10V 0..10V
Output Output Input Modbus
2 3 4 5 6 7 8 9 10 11 12 25 26 27 28 29 30 31 32 33 34 35 36
Output Output
NO5
C
NO2 NO3 NO4 NO1
13 14 15 16 17 18 19 20 21 22 23 24
Input Input Input Input Input Input
NTC NTC
NO
C
NO
C
NO
C
NO
C
ZONE MODULE (PM BOARD)
Hot water/Combi-coil
mixing valve
DX unit capacity
regulation
Cold water mixing
valve
Cold water mixing
valve (optional)
Cold water mixing
valve (optional)
Communication
with AHU
Water
circulation
pump
Common
Heating/Combi
Cooling
Supply air
temperature sensor
Return water
temperature sensor
Water heater/cooler
Frost protection thermostat
Open=OK, Close=Alarm
Combi-coil reverse
Open=Heating, Close=Cooling
1
GND
+24V
0..10V
GND GND GND
A
B
+24V +24V
0..10V 0..10V
Output Output Input Modbus
2 3 4 5 6 7 8 9 10 11 12 25 26 27 28 29 30 31 32 33 34 35 36
Output Output
NO5
C
NO2 NO3 NO4 NO1
13 14 15 16 17 18 19 20 21 22 23 24
Input Input Input Input Input Input
NTC NTC
NO
C
NO
C
NO
C
NO
C
ZONE MODULE (PM BOARD)
Communication
with AHU
DX unit control
Common
DX1 DX2 DX3 DX4
Reverse (Close = Heating)
Supply air
temperature sensor
On/O type DX unit
DX unit failure
Open=OK, Close=Alarm
1
GND
+24V
0..10V
GND GND GND
A
B
+24V +24V
0..10V 0..10V
Output Output Input Modbus
2 3 4 5 6 7 8 9 10 11 12 25 26 27 28 29 30 31 32 33 34 35 36
Output Output
NO5
C
NO2 NO3 NO4 NO1
13 14 15 16 17 18 19 20 21 22 23 24
Input Input Input Input Input Input
NTC NTC
NO
C
NO
C
NO
C
NO
C
PM BOARD
Communication
with AHU
Supply air
temperature sensor
1
GND
+24V
0..10V
GND GND GND
A
B
+24V +24V
0..10V 0..10V
Output Output Input Modbus
2 3 4 5 6 7 8 9 10 11 12 25 26 27 28 29 30 31 32 33 34 35 36
Output Output
NO5
C
NO2 NO3 NO4 NO1
13 14 15 16 17 18 19 20 21 22 23 24
Input Input Input Input Input Input
NTC NTC
NO
C
NO
C
NO
C
NO
C
ZONE MODULE (PM BOARD)
Communication
with AHU
DX unit control
Common
Operation
Cooling
Heating
Supply air
temperature sensor
Modulating type DX unit
Electrical heater
DX unit failure
Open=OK, Close=Alarm

11
UAB KOMFOVENT reserves the right to make changes without prior notice
ZC-19-02
3.2. Zone module conguration for modulating type direct expansion (DX) units
SW1
Zone 1
Zone 2
ON
ON
1 2
1 2
Water heater/cooler
ON
1234567
Heating
ON
1234567
Cooling
ON
1234567
Heating+Cooling
ON
1234567
Combi-coil
(heating/cooling)
ON
1234567
Heating
ON
1234567
Cooling
ON
1234567
Heating+Cooling
ON
1234567
Combi-coil
(heating/cooling)
SW2
Without frost protection
With frost protection
Modulating DX
ON
1234567
Universal
(0..10 V)
ON
1234567
Temperature setpoint
(11..50°C)
ON
1234567
Daikin
(0..5..10 V)
SW2
On/O DX with reverse
ON
1234567
1 step
ON
1234567
2 step
ON
1234567
3 step
ON
1234567
4 step
ON
1234567
1 step
ON
1234567
2 step
ON
1234567
3 step
ON
1234567
4 step
SW2
Sequence
Binary
On/O DX without reverse
ON
1234567
1 step
ON
1234567
2 step
ON
1234567
3 step
ON
1234567
4 step
ON
1234567
1 step
ON
1234567
2 step
ON
1234567
3 step
ON
1234567
4 step
SW2
Sequence
Binary
Zone module can control DX units, where unit capacity is regulated by 0..10 V signal. Depending on the DX unit model, if
needed, additional digital outputs are available for switching heating/cooling modes and start signal. Capacity regulation
can be controlled in three ways:
• Universal – capacity is regulated according to P.I. law, using 0..10 V signal. Higher voltage signal demands higher capacity
from the DX unit.
• Temperature setpoint* – capacity is regulated by requesting exact temperature setpoint from the DX unit air
temperature sensor. Analog control signal of 2,2..10 V is provided, which corresponds to 11..50°C temperature setpoint
for the DX unit.
• Daikin – special regulation for DX units with 0..5..10 V capacity regulation, used in some of Daikin DX models. Depending
on the signal, DX unit can decrease capacity (signal between 0..5V), increase capacity (signal between 5..10V), or maintain
actual capacity (signal 5V).
Electrical wiring of external components:
1
GND
+24V
0..10V
GND GND GND
A
B
+24V +24V
0..10V 0..10V
Output Output Input Modbus
2 3 4 5 6 7 8 9 10 11 12 25 26 27 28 29 30 31 32 33 34 35 36
Output Output
NO5
C
NO2 NO3 NO4 NO1
13 14 15 16 17 18 19 20 21 22 23 24
Input Input Input Input Input Input
NTC NTC
NO
C
NO
C
NO
C
NO
C
ZONE MODULE (PM BOARD)
Hot water/Combi-coil
mixing valve
DX unit capacity
regulation
Cold water mixing
valve
Cold water mixing
valve (optional)
Cold water mixing
valve (optional)
Communication
with AHU
Water
circulation
pump
Common
Heating/Combi
Cooling
Supply air
temperature sensor
Return water
temperature sensor
Water heater/cooler
Frost protection thermostat
Open=OK, Close=Alarm
Combi-coil reverse
Open=Heating, Close=Cooling
1
GND
+24V
0..10V
GND GND GND
A
B
+24V +24V
0..10V 0..10V
Output Output Input Modbus
2 3 4 5 6 7 8 9 10 11 12 25 26 27 28 29 30 31 32 33 34 35 36
Output Output
NO5
C
NO2 NO3 NO4 NO1
13 14 15 16 17 18 19 20 21 22 23 24
Input Input Input Input Input Input
NTC NTC
NO
C
NO
C
NO
C
NO
C
ZONE MODULE (PM BOARD)
Communication
with AHU
DX unit control
Common
DX1 DX2 DX3 DX4
Reverse (Close = Heating)
Supply air
temperature sensor
On/O type DX unit
DX unit failure
Open=OK, Close=Alarm
1
GND
+24V
0..10V
GND GND GND
A
B
+24V +24V
0..10V 0..10V
Output Output Input Modbus
2 3 4 5 6 7 8 9 10 11 12 25 26 27 28 29 30 31 32 33 34 35 36
Output Output
NO5
C
NO2 NO3 NO4 NO1
13 14 15 16 17 18 19 20 21 22 23 24
Input Input Input Input Input Input
NTC NTC
NO
C
NO
C
NO
C
NO
C
PM BOARD
Communication
with AHU
Supply air
temperature sensor
1
GND
+24V
0..10V
GND GND GND
A
B
+24V +24V
0..10V 0..10V
Output Output Input Modbus
2 3 4 5 6 7 8 9 10 11 12 25 26 27 28 29 30 31 32 33 34 35 36
Output Output
NO5
C
NO2 NO3 NO4 NO1
13 14 15 16 17 18 19 20 21 22 23 24
Input Input Input Input Input Input
NTC NTC
NO
C
NO
C
NO
C
NO
C
ZONE MODULE (PM BOARD)
Communication
with AHU
DX unit control
Common
Operation
Cooling
Heating
Supply air
temperature sensor
Modulating type DX unit
Electrical heater
DX unit failure
Open=OK, Close=Alarm

12 UAB KOMFOVENT reserves the right to make changes without prior notice
ZC-19-02
SW1
Zone 1
Zone 2
ON
ON
1 2
1 2
Water heater/cooler
ON
1234567
Heating
ON
1234567
Cooling
ON
1234567
Heating+Cooling
ON
1234567
Combi-coil
(heating/cooling)
ON
1234567
Heating
ON
1234567
Cooling
ON
1234567
Heating+Cooling
ON
1234567
Combi-coil
(heating/cooling)
SW2
Without frost protection
With frost protection
Modulating DX
ON
1234567
Universal
(0..10 V)
ON
1234567
Temperature setpoint
(11..50°C)
ON
1234567
Daikin
(0..5..10 V)
SW2
On/O DX with reverse
ON
1234567
1 step
ON
1234567
2 step
ON
1234567
3 step
ON
1234567
4 step
ON
1234567
1 step
ON
1234567
2 step
ON
1234567
3 step
ON
1234567
4 step
SW2
Sequence
Binary
On/O DX without reverse
ON
1234567
1 step
ON
1234567
2 step
ON
1234567
3 step
ON
1234567
4 step
ON
1234567
1 step
ON
1234567
2 step
ON
1234567
3 step
ON
1234567
4 step
SW2
Sequence
Binary
3.3. Zone module conguration for ON/OFF type direct expansion (DX) units
Zone module can control DX units, which do not have capacity regulation and needs only On/O signal. Such type of units
also can be reversible, meaning that DX unit can operate in both modes: cooling and heating. If DX unit is not reversible, by
default it will be operating only in cooling mode. Up to four separate DX units can be connected in steps and controlled in
two dierent ways:
• Sequence – when all DX units are starting one after another if air temperature is not reached after previous step. This
type is recommended when capacities of DX units are equal. Example of sequence control: Step1= DX1, Step2=DX1+DX2,
Step3=DX1+DX2+DX3.
• Binary – when all DX units are starting according binary code and in such a way more steps can be achieved. This
type is recommended when capacities of DX units are dierent and, in ideal case, the capacity of each of the following
DX unit is double the previous. Example of binary control: Step1= DX1, Step2= DX2, Step3=DX1+DX2, Step4=DX3,
Step5=DX3+DX1, Step6=DX3+DX2, Step7=DX3+DX2+DX1.
Electrical wiring of external components:
1
GND
+24V
0..10V
GND GND GND
A
B
+24V +24V
0..10V 0..10V
Output Output Input Modbus
2 3 4 5 6 7 8 9 10 11 12 25 26 27 28 29 30 31 32 33 34 35 36
Output Output
NO5
C
NO2 NO3 NO4 NO1
13 14 15 16 17 18 19 20 21 22 23 24
Input Input Input Input Input Input
NTC NTC
NO
C
NO
C
NO
C
NO
C
ZONE MODULE (PM BOARD)
Hot water/Combi-coil
mixing valve
DX unit capacity
regulation
Cold water mixing
valve
Cold water mixing
valve (optional)
Cold water mixing
valve (optional)
Communication
with AHU
Water
circulation
pump
Common
Heating/Combi
Cooling
Supply air
temperature sensor
Return water
temperature sensor
Water heater/cooler
Frost protection thermostat
Open=OK, Close=Alarm
Combi-coil reverse
Open=Heating, Close=Cooling
1
GND
+24V
0..10V
GND GND GND
A
B
+24V +24V
0..10V 0..10V
Output Output Input Modbus
2 3 4 5 6 7 8 9 10 11 12 25 26 27 28 29 30 31 32 33 34 35 36
Output Output
NO5
C
NO2 NO3 NO4 NO1
13 14 15 16 17 18 19 20 21 22 23 24
Input Input Input Input Input Input
NTC NTC
NO
C
NO
C
NO
C
NO
C
ZONE MODULE (PM BOARD)
Communication
with AHU
DX unit control
Common
DX1 DX2 DX3 DX4
Reverse (Close = Heating)
Supply air
temperature sensor
On/O type DX unit
DX unit failure
Open=OK, Close=Alarm
1
GND
+24V
0..10V
GND GND GND
A
B
+24V +24V
0..10V 0..10V
Output Output Input Modbus
2 3 4 5 6 7 8 9 10 11 12 25 26 27 28 29 30 31 32 33 34 35 36
Output Output
NO5
C
NO2 NO3 NO4 NO1
13 14 15 16 17 18 19 20 21 22 23 24
Input Input Input Input Input Input
NTC NTC
NO
C
NO
C
NO
C
NO
C
PM BOARD
Communication
with AHU
Supply air
temperature sensor
1
GND
+24V
0..10V
GND GND GND
A
B
+24V +24V
0..10V 0..10V
Output Output Input Modbus
2 3 4 5 6 7 8 9 10 11 12 25 26 27 28 29 30 31 32 33 34 35 36
Output Output
NO5
C
NO2 NO3 NO4 NO1
13 14 15 16 17 18 19 20 21 22 23 24
Input Input Input Input Input Input
NTC NTC
NO
C
NO
C
NO
C
NO
C
ZONE MODULE (PM BOARD)
Communication
with AHU
DX unit control
Common
Operation
Cooling
Heating
Supply air
temperature sensor
Modulating type DX unit
Electrical heater
DX unit failure
Open=OK, Close=Alarm

13
UAB KOMFOVENT reserves the right to make changes without prior notice
ZC-19-02
3.4. Zone module conguration for additional electrical heater
Complete Verso Pro electrical heater section can be used for zone control function. Since inside of the section there is
already PM board installed, additional zone module is not needed. Cables are connected directly to the PM board and only
SW1 DIP-switches should be congured to indicate zone number (see page 10). If electrical heater will be used to maintain
temperature of the independent temperature zone, additionally it will be needed to connect supply temperature sensor. Do
not change SW2 DIP-switches or any cables that are already connected to the PM board of electrical heater section, since it
is used for heater operation.
Elektrical heater
section
PM board
Electrical wiring of external components:
1
GND
+24V
0..10V
GND GND GND
A
B
+24V +24V
0..10V 0..10V
Output Output Input Modbus
2 3 4 5 6 7 8 9 10 11 12 25 26 27 28 29 30 31 32 33 34 35 36
Output Output
NO5
C
NO2 NO3 NO4 NO1
13 14 15 16 17 18 19 20 21 22 23 24
Input Input Input Input Input Input
NTC NTC
NO
C
NO
C
NO
C
NO
C
ZONE MODULE (PM BOARD)
Hot water/Combi-coil
mixing valve
DX unit capacity
regulation
Cold water mixing
valve
Cold water mixing
valve (optional)
Cold water mixing
valve (optional)
Communication
with AHU
Water
circulation
pump
Common
Heating/Combi
Cooling
Supply air
temperature sensor
Return water
temperature sensor
Water heater/cooler
Frost protection thermostat
Open=OK, Close=Alarm
Combi-coil reverse
Open=Heating, Close=Cooling
1
GND
+24V
0..10V
GND GND GND
A
B
+24V +24V
0..10V 0..10V
Output Output Input Modbus
2 3 4 5 6 7 8 9 10 11 12 25 26 27 28 29 30 31 32 33 34 35 36
Output Output
NO5
C
NO2 NO3 NO4 NO1
13 14 15 16 17 18 19 20 21 22 23 24
Input Input Input Input Input Input
NTC NTC
NO
C
NO
C
NO
C
NO
C
ZONE MODULE (PM BOARD)
Communication
with AHU
DX unit control
Common
DX1 DX2 DX3 DX4
Reverse (Close = Heating)
Supply air
temperature sensor
On/O type DX unit
DX unit failure
Open=OK, Close=Alarm
1
GND
+24V
0..10V
GND GND GND
A
B
+24V +24V
0..10V 0..10V
Output Output Input Modbus
2 3 4 5 6 7 8 9 10 11 12 25 26 27 28 29 30 31 32 33 34 35 36
Output Output
NO5
C
NO2 NO3 NO4 NO1
13 14 15 16 17 18 19 20 21 22 23 24
Input Input Input Input Input Input
NTC NTC
NO
C
NO
C
NO
C
NO
C
PM BOARD
Communication
with AHU
Supply air
temperature sensor
1
GND
+24V
0..10V
GND GND GND
A
B
+24V +24V
0..10V 0..10V
Output Output Input Modbus
2 3 4 5 6 7 8 9 10 11 12 25 26 27 28 29 30 31 32 33 34 35 36
Output Output
NO5
C
NO2 NO3 NO4 NO1
13 14 15 16 17 18 19 20 21 22 23 24
Input Input Input Input Input Input
NTC NTC
NO
C
NO
C
NO
C
NO
C
ZONE MODULE (PM BOARD)
Communication
with AHU
DX unit control
Common
Operation
Cooling
Heating
Supply air
temperature sensor
Modulating type DX unit
Electrical heater
DX unit failure
Open=OK, Close=Alarm

14 UAB KOMFOVENT reserves the right to make changes without prior notice
ZC-19-02
4. SETTINGS ON THE C5 CONTROLLER
Initial zone setup is done from the computer connected to the AHU directly, via local network or internet. This can be done
by authorized service personnel only.
If zone control function was not ordered in advance and if it was not activated from the factory, at rst it is needed to log in
to the “Factory” level and activate one or two additional zones.
If zone control function was ordered in advance and if it was activated from the factory or in a way described above, log in
into the “Service” level and navigate to “Functions screen”. Enable which additional zones will be used. For the control of
independent temperature zones or pre-heater (see application examples in section 1), check mark option “Independent”
and enter desired temperature setpoint.
Enable
Setpoint 20.0 °C
120
8
Kp
Ki
Independent
1ST ADDITIONAL ZONE CONTROL (ZN1)
Heat exchanger
Supply air fan
Exhaust air fan
Outdoor air filter
Extract air filter
Air dampers
Electric heater
Water heater
Water cooler
DX unit
Recirculation
Humidity control unit
Heat pump
Additional zone 1
Additional zone 2
CF defrost module
Rotary
None
STRUCTURE
Stage 1
Stage 2
Stage 3
Stage 4
Stage 5
Stage 6
Min. switching delay between heating/cooling
Water
Zone1
Zone2
DX
Electric
Heat pump
20 min
HEATING/COOLING SEQUENCE
Enable
Setpoint 22.0 °C
120
8
Kp
Ki
Independent
2ND ADDITIONAL ZONE CONTROL (ZN2)
Enable
Setpoint 20.0 °C
120
8
Kp
Ki
Independent
1ST ADDITIONAL ZONE CONTROL (ZN1)
Heat exchanger
Supply air fan
Exhaust air fan
Outdoor air filter
Extract air filter
Air dampers
Electric heater
Water heater
Water cooler
DX unit
Recirculation
Humidity control unit
Heat pump
Additional zone 1
Additional zone 2
CF defrost module
Rotary
None
STRUCTURE
Stage 1
Stage 2
Stage 3
Stage 4
Stage 5
Stage 6
Min. switching delay between heating/cooling
Water
Zone1
Zone2
DX
Electric
Heat pump
20 min
HEATING/COOLING SEQUENCE
Enable
Setpoint 22.0 °C
120
8
Kp
Ki
Independent
2ND ADDITIONAL ZONE CONTROL (ZN2)

15
UAB KOMFOVENT reserves the right to make changes without prior notice
ZC-19-02
After independent temperature zone was congured, temperature setpoint can be adjusted from the user level on the
computer or from the control panel.
In cases when zone module is used for additional heating/cooling steps and should start when the capacity of main heaters/
cooler is not enough (see application examples in section 1), leave the “Independent” check box empty and main temperature
setpoint set in the “Operation modes” will be used.
Additionally, for such regulation, it is needed to congure “Heating/cooling sequence” (Service level ->Functions) and select
the order in which heating/cooling devices and zone modules should operate.
Enable
Setpoint 20.0 °C
120
8
Kp
Ki
Independent
1ST ADDITIONAL ZONE CONTROL (ZN1)
Heat exchanger
Supply air fan
Exhaust air fan
Outdoor air filter
Extract air filter
Air dampers
Electric heater
Water heater
Water cooler
DX unit
Recirculation
Humidity control unit
Heat pump
Additional zone 1
Additional zone 2
CF defrost module
Rotary
None
STRUCTURE
Stage 1
Stage 2
Stage 3
Stage 4
Stage 5
Stage 6
Min. switching delay between heating/cooling
Water
Zone1
Zone2
DX
Electric
Heat pump
20 min
HEATING/COOLING SEQUENCE
Enable
Setpoint 22.0 °C
120
8
Kp
Ki
Independent
2ND ADDITIONAL ZONE CONTROL (ZN2)
Enable
Setpoint 20.0 °C
120
8
Kp
Ki
Independent
1ST ADDITIONAL ZONE CONTROL (ZN1)
Heat exchanger
Supply air fan
Exhaust air fan
Outdoor air filter
Extract air filter
Air dampers
Electric heater
Water heater
Water cooler
DX unit
Recirculation
Humidity control unit
Heat pump
Additional zone 1
Additional zone 2
CF defrost module
Rotary
None
STRUCTURE
Stage 1
Stage 2
Stage 3
Stage 4
Stage 5
Stage 6
Min. switching delay between heating/cooling
Water
Zone1
Zone2
DX
Electric
Heat pump
20 min
HEATING/COOLING SEQUENCE
Enable
Setpoint 22.0 °C
120
8
Kp
Ki
Independent
2ND ADDITIONAL ZONE CONTROL (ZN2)

ZC-19-02
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AT J. PICHLER Gesellschaft m. b. H. www.pichlerluft.at
AU Pacic HVAC www.pacichvac.com
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Merkapt www.merkapt.hu
IR Fantech Ventilation Ltd www.fantech.ie
IS Blikk & Tækniþjónustan ehf www.bogt.is
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NO Ventistål AS www.ventistal.no
Thermo Control AS www.thermocontrol.no
PL Ventia Sp. z o.o. www.ventia.pl
SE Nordisk Ventilator AB www.nordiskventilator.se
SI Agregat d.o.o www.agregat.si
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