
43
Port provide the control signal to the load.Two kind of control signal port:
Type 1
:
Dry connector without voltage.
Type 2
:
Port provide the signal with 220V voltage. If the current of load is <0.2A, load can connect to the port directly.
If the current of load is >=0.2A, the AC contactor is required to connected for the load.
unit 4-16kW
Code
Connect to
1
SL1
2
SL2
3
H
4
C
15
L1
5 1ON
6 1OFF
16
N
7 2ON
8 2OFF
17
N
9 P_c
21
N
10 P_o
22
N
11 P_s
12 P_d
24
N
13 TBH
16
N
14 IBH1
17
N
18
19 3ON
N
23
③
①
Solar energy input
signal
②
Room thermostat input
(
high voltage
)
Tank booster heater
Internal backup heater 1
SV3(3-way valve)
④
⑤
⑥
⑦
Outside circulation pump
/zone1 pump
Pumpc(zone2 pump)
CN11
SV2(3-way valve)
SV1(3-way valve)
⑧
⑨
⑩
11
DHW pipe pump
23
N
SV1(3-way valve)
SV1(3-way valve)
Solar energy pump
20 3OFF
1
SL1
2
SL2
3
�
H
4
C
5
�
6
1ON
7
1OFF
8
9
10
�
11
�
12
�
24
23
N
21
N
20
IBH1
19
18
13
14
L1
15
16 17
N
22
25
�����
HT
29
��
30
31
DFT2
32
DFT1
26
����
R2
27
AHS1
28
AHS2
1
A
2
B
3
X
4
Y
5
E
6
P
7
Q
8
E
9
H1
10
H2
2ON
2OFF
P_c P_o P_s P_d
N
R1
TBH
N
N 3ON
3OFF
N
N
CN11
CN7
CN30
Code
Connect to
1
A
2
B
3
X
4
Y
5
E
6
P
7
Q
9
H1
10 H2
CN30
Wired controller
①
②
②
③
②
②
③
Code
Connect to
26
R2
30
R1
31 DFT2
32 DFT1
25
HT
29
N
27 AHS1
28 AHS2
①
CN7
Compressor run
Antifreeze E-heating
tape(external)
Additional heat source
Outdoor unit
Internal machine
cascade
1 2 3
4 5
6 7 8 9 10
�
11
�
12
�
24
23
21
20
19
18
13
����
1415
16 17
CN11
22
30
26
1
2 3 4 5
6
7 8 9 10
CN30
CN7
Type 1
Running
9.7.6 Connection for other components
Defrost or alarm
signal
44
SV2
7 8
�
�
�
17
CN11
25 26
1
2 3 4 5
6
7 8 9 10
CN7
CN30
27 28
29 30 31 32
17
7 8
a) Procedure
Connect the cable to the appropriate terminals as
shown in the picture.
Fix the cable reliably.
Control port signal type
Voltage
Maximum running current(A)
Wiring size(mm
2
)
Type 2
220-240VAC
0.2
0.75
19
20 18
SV3
�
�
20
19
18
����
CN11
25 26
1
2 3 4 5
6
7 8 9 10
CN7
CN30
27 28
29 30 31 32
1) For solar energy input signal:
CONNECT TO SOLAR
KIT INPUT 220-240VAC
Voltage
Maximum running current(A)
Wiring size(mm
2
)
220-240VAC
0.2
0.75
1 2
�
�
�
����
CN11
25 26
1
2 3 4 5
6
7 8 9 10
CN30
CN7
27 28
29 30 31 32
2) For 3-way valve SV1
、
SV2 and SV3:
SV1
5
6 16
5
6
�
�
����
16
CN11
25 26
1
2 3 4 5
6
7 8 9 10
CN30
CN7
27 28
29 30 31 32
3) For remote shut down:
30
29
32
25 26 27
28
31
7
12
11
10
9
18
8
7
5
23
22
24
1
2
13
3
4
6
20
14 15
17
19
16
21
6
8 9 10
5
4
3
2
1
CN4
CN22
CN5
S3
DIS1
CN24
CN1
CN2
CN6
CN8
CN13
CN15
CN16
CN18
CN28
S2
CN42
CN21
S1
S4
CN11
CN7
CN17
CN19
CN30
CN35
CN14
CN31
CN36
CN25
CN29
CN40
CN41
CL
COM
HT
EVU
SG
M1
M2
CLOSE: SHUT DOWN
CN32
SW9
Type 2
Control signal port of hydraulic module: The CN11/CN7
contains terminals for solar energy, 3-way valve, pump,
booster heater , etc.
The parts wiring is illustrated below:
ATCO
TCO
A2
7 5 3 1 A1
8 6 4 2
Power supply
Contactor
(TBH)
�
�
13
����
16
CN11
25 26
1 2 3 4 5
6 7 8 9 10
CN30
CN7
27
29 30 31 32
28
EN
IDOLA M 3.2
04÷16T
CAUTION
34
Ethylene Glycol and Propylene Glycol are TOXIC
WARNING
NOTE
During filling, it might not be possible to remove all air in the system. Remaining air will be removed through the
automatic air purge valves during the first operating hours of the system. Topping up the water afterwards might be
required.
The water pressure will vary depending on the water temperature (higher pressure at higher water temperature).
However, at all times water pressure should remain above 0.3 bar to avoid air entering the circuit.
The unit might drain-off too much water through the pressure relief valve.
Water quality should be complied with EN 98/83 EC Directives.
Detailed water quality condition can be found in EN 98/83 EC Directives.
Connect the water supply to the filling valve and open the valve.
Make sure the automatic air purge valve is open (at least 2 turns).
Fill with water pressure of approximately 2.0 bar. Remove air in the circuit as much as possible using the air purge
valves. Air in the water circuit could lead to malfunction of the backup electric heater.
9.5 Filling water
Do not fasten the black plastic cover on
the vent valve at the topside of the unit
when the system is running. Open air
purge valve, turn anticlockWise at least
2 full turns to release air from the
system.
CounterclockWise rotation, remove the flow switch.
Drying the flow switch completely.
When the unit is not running for a long time, make sure the unit is powered on all the time. If you want to cut off the
power, the water in the system pipe needs to be drained clean to avoid the unit and pipeline system being damaged by
freezing. Also the power of the unit needs to be cut off after water in the system is drained off.
Cod. 3QE47850 - Rev. 00 - 03/2022