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Technical information
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Compress 3400i AWS – 6721852066 (2023/01)
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.
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.
11.5 Cable scheme
Table 14 Connections in indoor units AWS E
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).
Table 16 Sensor T0, TC0, TC1, TC3, TR3
Table 17 Sensor TW1
Designation Min. cross-
section
Type of cable Max. length Connected at: Connection
terminal:
Power source
3-way diverter valve VW1 3x1.5 mm² cable integrated Indoor unit 53 / 54 / N IDU
Heating circuit pump 1 PC1 3x1.5 mm² H05VV-F Indoor unit 52 / N / PE
DHW pump PW2 3x1.5 mm² H05VV-F 58 / N / PE
Signal cable IDU - ODU CAN-BUS 3x0.75 mm2LiYCY (TP) 30 m CAN High 31(H)
CAN Low 32(L),
GND 33
connection,
shielded cable
connected to
IDU
Power supply (single
phase)
IDU AWS E 3x6 mm² NYY Indoor unit L / N / PE 1xC32
Power supply (three
phase)
IDU AWS E 5x1.5 mm² NYY Indoor unit L1 / L2 / L3 / N /
PE
3xC10
Heating cable 3x1.5 mm² NYY 3 m Indoor unit 56 / N - (HC /
HC)
IDU - HC / HC
EMS - Module MM100,
MS100.
0.5 mm² J-Y (ST)Y 2x2x0,6 100 m Indoor unit 19 / 20
0-10V control boiler EM0 2x0.75 mm2LiYCY (TP) Indoor unit
(IDU AWS E)
38 / 39
PV-Function 0.4 mm² J-Y (ST)Y 2x2x0,6 From inverter on terminal I1 or I4 in IDU,
EVU-block or Smart Grid
Smart Grid 0.4 mm² J-Y (ST)Y 2x2x0,6 From load management controller on terminal I4,
connection 15, 16 in IDU
EVU-terminal block 3x1.5 mm² H05VV-F1)
1) EVU cable should be shielded
From load management controller on terminal I1,
connection 13, 14 in IDU
Sensor Designation Min. cross-
section
Type of cable Max.
length
Connected at: Connection
terminal:
Power source
Outdoor T1 0.5 mm2J-Y (ST)Y 2x2x 0,6 Indoor unit 3 / 4
Flow T0 0.5 mm2J-Y (ST)Y 2x2x 0,6 Indoor unit 1 / 2
Hot water (DHW) TW1 0.5 mm2J-Y (ST)Y 2x2x 0,6 Indoor unit 5 / 6
Dew sensor MK2 (max. 5x) 0.5 mm2cable integrated Indoor unit 34 / 35
Mixed heating circuit TC1 0.5 mm2J-Y (ST)Y 2x2x 0,6 100 m MM100 1 / 2
Pool temperature TC1 0.5 mm2J-Y (ST)Y 2x2x 0,6 100 m MP100 1 / 2
°C °C °C °C
20 12488 40 5331 60 2490 80 1256
25 10001 45 4327 65 2084 85 1070
30 8060 50 3605 70 1753 90 915
35 6536 55 2989 75 1480 - -
°C °C °C °C
20 14772 40 6653 60 3243 80 1704
25 11981 45 5523 65 2744 85 1464
30 9786 50 4608 70 2332 90 1262
35 8047 55 3856 75 1990 - -
°C °C °C
– 40 154300 5 11900 50 1696
– 35 111700 10 9330 55 1405
– 30 81700 15 7370 60 1170
– 25 60400 20 5870 65 980
– 20 45100 25 4700 70 824
39


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