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
1 2 3 4 5 6 7
Heating
ON
1 2 3 4 5 6 7
Cooling
ON
1 2 3 4 5 6 7
Cooling
ON
1 2 3 4 5 6 7
Combi-coil
(heating/cooling)
ON
1 2 3 4 5 6 7
Heating
ON
1 2 3 4 5 6 7
Cooling
ON
1 2 3 4 5 6 7
Cooling
ON
1 2 3 4 5 6 7
Combi-coil
(heating/cooling)
SW2
W
ithout fr
ost pr
ot
ec
tion
W
ith fr
ost pr
ot
ec
tion
Modulating DX
ON
1 2 3 4 5 6 7
Universal
(0..10 V)
ON
1 2 3 4 5 6 7
Temperature setpoint
(11..50°C)
ON
1 2 3 4 5 6 7
Daikin
(0..5..10 V)
SW2
On/Off DX with reverse
ON
1 2 3 4 5 6 7
1 step
ON
1 2 3 4 5 6 7
2 step
ON
1 2 3 4 5 6 7
3 step
ON
1 2 3 4 5 6 7
4 step
ON
1 2 3 4 5 6 7
1 step
ON
1 2 3 4 5 6 7
2 step
ON
1 2 3 4 5 6 7
3 step
ON
1 2 3 4 5 6 7
4 step
SW2
Sequenc
e
Binar
y
On/Off DX without reverse
ON
1 2 3 4 5 6 7
1 step
ON
1 2 3 4 5 6 7
2 step
ON
1 2 3 4 5 6 7
3 step
ON
1 2 3 4 5 6 7
4 step
ON
1 2 3 4 5 6 7
1 step
ON
1 2 3 4 5 6 7
2 step
ON
1 2 3 4 5 6 7
3 step
ON
1 2 3 4 5 6 7
4 step
SW2
Sequenc
e
Binar
y
3.1. Zone module configuration 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 configured 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
N
TC
N
TC
NO
C
NO
C
NO
C
NO
C
ZONE MODULE (PM BOARD)
Hot w
at
er/C
ombi-
coil
mixing v
alv
e
D
X unit capacit
y
regula
tion
Cold w
at
er mixing
valv
e
Cold w
at
er mixing
valv
e (optional)
Cold w
at
er mixing
valv
e (optional)
Communica
tion
with AHU
Water
circulation
pump
Common
Hea
ting/C
ombi
Cooling
Supply air
temper
atur
e sensor
Retur
n w
at
er
temper
atur
e sensor
Water heater/cooler
Fr
ost pr
ot
ec
tion ther
mosta
t
Open=OK
, Close=A
lar
m
Combi-
coil r
ev
erse
Open=Hea
ting
, Close=C
ooling
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
N
TC
N
TC
NO
C
NO
C
NO
C
NO
C
ZONE MODULE (PM BOARD)
Communica
tion
with AHU
DX unit control
Common
DX
1
DX
2
DX
3
DX
4
Rev
erse (
Close = Hea
ting)
Supply air
temper
atur
e sensor
On/Off type DX unit
D
X unit failur
e
Open=OK
, Close=A
lar
m
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
N
TC
N
TC
NO
C
NO
C
NO
C
NO
C
PM BOARD
Communica
tion
with AHU
Supply air
temper
atur
e 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
N
TC
N
TC
NO
C
NO
C
NO
C
NO
C
ZONE MODULE (PM BOARD)
Communica
tion
with AHU
DX unit control
Common
Oper
ation
Cooling
Hea
ting
Supply air
temper
atur
e sensor
Modulating type DX unit
Electrical heater
D
X unit failur
e
Open=OK
, Close=A
lar
m