HYDRAULIC SYSTEMS AND CONNECTION DIAGRAMS
88
smart Econ - emz-HCW - 180116
Hydraulic system 12: ›HCW 012 Sol‹ (HCW 1620 Base Unit)
1 two-stage heat generator, 4 heating circuits with mixer, 1 solar collector,
1 buffer tank, 1 domestic hot water tank, domestic hot water circulation
Required sensors (PT 1000): 1 outdoor temperature sensor, 2 solar and boiler temperature sensors,
3 storage tank and buffer temperature sensors, 5 flow/return contact temperature sensors
PE
PE
N
N
L
L
PE
PE
PE
PE
PE
PE
PE
PE
N
N
N
N
34
34
48
48
46
46
44
44
42
42
40
40
38
38
36
36
33
33
32
32
31
31
30
30
24
24
10
10
12
12
14
14
16
16
18
18
20
20
22
22
25
25
11
11
13
13
15
15
17
17
19
19
21
21
23
23
4
1
2 3
26
26
5
5
6
6
28
28
7
7
8
8
27
27
29
29
L
L
+
+
-
-
H
H
4
1
2 3
S-OUT <10>
S-LP-T <16>
S-DHW
<14>
HG <30>
P-DHW <34>
P-CIRC
<2/40>
S-FL-HG
<12>
S-FL-HC 2
<22>
M-HC 2
<46,48>
P-HC 1
<36>
P-HC 2
<38>
S-CIRC
<2/10>
AO-HG
0-10V
<28>
S-UP-T <24>
P-HG
<40>
PWM P-SOL <26>
A
O
-HG 0-10V <28>
S-OUT <10>
S-FL-HG <12>
S-DHW <14>
S-LP-T <16>
S-COL <18>
S-FL-HC 1 <20>
S-FL-HC 2 <22>
S-UP-T <24>
M-HC 2 <48>
M-HC 2 <46>
M-HC 1 <44>
M-HC 1 <42>
P-HG <40>
P-HC 2 <38>
P-HC 1 <36>
P-DHW <34>
STG_2 HG <32>
HG <30>
S-FL-HC 1
<20>
M-HC 1
<42,44>
STG_2
HG <32>
S-COL
<18>
P-SOL
<2/32>
PWM
P-SOL
<26>
Power supply
230 V AC
CAN bus
→
Page 53
Temperature sensor
Pumps and mixers
Analog
outputs
