Cable Scheme; Measurements From Temperature Sensors - Bosch Compress 3400i AWS Installation Manual
Indoor unit for air to water heat pump
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- Installation manual (24 pages) ,
- Operation manual (28 pages)
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If the PV system has sufficient current for operating the heat pump, it can
communicate this information to the heat pump in the form of a start
command via a control cable. The control cable must be connected to
one of the available external connections. The selected external
connection must be configured in the control unit for the PV function.
11.5
Cable scheme
Designation
3-way diverter valve
VW1
Heating circuit pump 1
PC1
DHW pump
PW2
Signal cable IDU - ODU
CAN-BUS
Power supply (single
IDU AWS E
phase)
Power supply (three
IDU AWS E
phase)
Heating cable
EMS - Module
MM100,
MS100.
0-10V control boiler
EM0
PV-Function
Smart Grid
EVU-terminal block
1) EVU cable should be shielded
Table 14 Connections in indoor units AWS E
Sensor
Designation
Outdoor
T1
Flow
T0
Hot water (DHW)
TW1
Dew sensor
MK2 (max. 5x)
Mixed heating circuit
TC1
Pool temperature
TC1
Table 15 Cable plan sensor
11.6
Measurements from temperature sensors
CAUTION
Physical injury or material damage due to incorrect temperature
If sensors with incorrect characteristics are used, the temperatures may
be too high or too low.
▶ Make sure that the temperature sensors used comply with the
specified values (see tables below).
°C
°C
20
12488
40
5331
25
10001
45
4327
30
8060
50
3605
35
6536
55
2989
Compress 3400i AWS – 6721852066 (2023/01)
Min. cross-
Type of cable
section
3x1.5 mm²
cable integrated
3x1.5 mm²
H05VV-F
3x1.5 mm²
H05VV-F
2
3x0.75 mm
LiYCY (TP)
3x6 mm²
NYY
5x1.5 mm²
NYY
3x1.5 mm²
NYY
0.5 mm²
J-Y (ST)Y 2x2x0,6
2
2x0.75 mm
LiYCY (TP)
0.4 mm²
J-Y (ST)Y 2x2x0,6
0.4 mm²
J-Y (ST)Y 2x2x0,6
3x1.5 mm²
H05VV-F
Min. cross-
Type of cable
section
2
0.5 mm
J-Y (ST)Y 2x2x 0,6
2
0.5 mm
J-Y (ST)Y 2x2x 0,6
2
0.5 mm
J-Y (ST)Y 2x2x 0,6
2
0.5 mm
cable integrated
2
0.5 mm
J-Y (ST)Y 2x2x 0,6
2
0.5 mm
J-Y (ST)Y 2x2x 0,6
°C
°C
60
2490
80
1256
65
2084
85
1070
70
1753
90
915
75
1480
-
-
The heating system must have a buffer cylinder and only heating circuits
with a mixer in order for a start command to be effective. A start
command causes the buffer cylinder to be charged up to the maximum
temperature achievable by the heat pump. However, it can only be
charged when the temperature in the buffer cylinder is below the
maximum temperature. Otherwise, the heat pump remains off.
Max. length
Connected at:
Indoor unit
Indoor unit
30 m
Indoor unit
Indoor unit
3 m
Indoor unit
100 m
Indoor unit
Indoor unit
(IDU AWS E)
From inverter on terminal I1 or I4 in IDU,
From load management controller on terminal I4,
1)
From load management controller on terminal I1,
Max.
Connected at:
length
Indoor unit
Indoor unit
Indoor unit
Indoor unit
100 m
MM100
100 m
MP100
Table 16 Sensor T0, TC0, TC1, TC3, TR3
°C
°C
20
14772
40
25
11981
45
30
9786
50
35
8047
55
Table 17 Sensor TW1
°C
– 40
154300
5
– 35
111700
10
– 30
81700
15
– 25
60400
20
– 20
45100
25
Technical information
Connection
Power source
terminal:
53 / 54 / N
52 / N / PE
58 / N / PE
CAN High 31(H)
CAN Low 32(L),
shielded cable
GND 33
connected to
L / N / PE
L1 / L2 / L3 / N /
PE
56 / N - (HC /
IDU - HC / HC
HC)
19 / 20
38 / 39
EVU-block or Smart Grid
connection 15, 16 in IDU
connection 13, 14 in IDU
Connection
Power source
terminal:
3 / 4
1 / 2
5 / 6
34 / 35
1 / 2
1 / 2
°C
°C
6653
60
3243
80
5523
65
2744
85
4608
70
2332
90
3856
75
1990
-
°C
°C
11900
50
9330
55
7370
60
5870
65
4700
70
IDU
connection,
IDU
1xC32
3xC10
1704
1464
1262
-
1696
1405
1170
980
824
39
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