178 Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Installation
6
Connection diagram – Hydrokits
Models Connection diagram
WH-SDC****J3E5 + WH-UD**JE5(-1)
WH-SDC**H6E5 + WH-UD**HE5
WH-SXC**H*E5 + WH-UX**HE5
WH-SHF**F*E5 + WH-UH**FE5
Terminals on
indoor unit
Terminals on
outdoor unit
Terminals on
disconnector
Indoor / outdoor
unit connection
1 2
1 2
L N
L N
L
1
N
1
L
1
N
1
Power
supply 1
Power
supply 2
WH-SDC09H3E8 + WH-UD09HE8
WH-SXC09H3E8 + WH-UX09HE8
WH-SQC09H3E8 + WH-UQ09HE8
WH-SHF09F3E8 + WH-UH09FE8
Terminals on
indoor unit
Terminals on
outdoor unit
Terminals on
disconnector
Power supply 1 Power supply 2
For model WH-SHF09F3E8
1
1
2
2
3
3
4
4
5
5
L
L
N
N
L
A1
L
A2
L
A3
N
L
A1
L
A2
L
A3
N
For model WH-SHF12F9E8
1
1
2
2
3
3
4
4
5
5
L
B1
L
B2
L
B3
N
L
B1
L
B2
L
B3
N
L
A1
L
A2
L
A3
N
L
A1
L
A2
L
A3
N
LN
11
N L
N L
22
POWER SUPPLY 2
LB1 LB2 L B3 N
POWER SUPPLY 1
LA1 LA2 L A3 N
45
A
For model WH-SHF09F3E8
1
1
2
2
3
3
4
4
5
5
L
L
N
N
L
A1
L
A2
L
A3
N
L
A1
L
A2
L
A3
N
For model WH-SHF12F9E8
1
1
2
2
3
3
4
4
5
5
L
B1
L
B2
L
B3
N
L
B1
L
B2
L
B3
N
L
A1
L
A2
L
A3
N
L
A1
L
A2
L
A3
N
LN
11
N L
N L
22
POWER SUPPLY 2
LB1 LB2 L B3 N
POWER SUPPLY 1
LA1 LA2 L A3 N
45
A
Indoor / outdoor unit connection
For model WH-SHF09F3E8
1
1
2
2
3
3
4
4
5
5
L
L
N
N
L
A1
L
A2
L
A3
N
L
A1
L
A2
L
A3
N
For model WH-SHF12F9E8
1
1
2
2
3
3
4
4
5
5
L
B1
L
B2
L
B3
N
L
B1
L
B2
L
B3
N
L
A1
L
A2
L
A3
N
L
A1
L
A2
L
A3
N
LN
11
N L
N L
22
POWER SUPPLY 2
LB1 LB2 LB3 N
POWER SUPPLY 1
LA1 LA2 LA3 N
45
A
WH-SDC12H9E8 + WH-UD12HE8
WH-SDC16H9E8 + WH-UD16HE8
WH-SXC12H9E8 + WH-UX12HE8
WH-SXC16H9E8 + WH-UX16HE8
WH-SQC12H9E8 + WH-UQ12HE8
WH-SQC16H9E8 + WH-UQ16HE8
WH-SHF12F9E8 + WH-UH12FE8
Terminals on
indoor unit
Terminals on
outdoor unit
Terminals on
disconnector
Power supply 1Power supply 2
A1
L
A2
L
A3
N
L
L
A1
L
A2
L
A3
N
L
C1
L
C2
L
C3
N
L
C1
L
C2
L
C3
N
Indoor / outdoor unit connection
For model WH-SHF09F3E8
1
1
2
2
3
3
4
4
5
5
L
L
N
N
L
A1
L
A2
L
A3
N
L
A1
L
A2
L
A3
N
For model WH-SHF12F9E8
1
1
2
2
3
3
4
4
5
5
L
B1
L
B2
L
B3
N
L
B1
L
B2
L
B3
N
L
A1
L
A2
L
A3
N
L
A1
L
A2
L
A3
N
LN
11
N L
N L
22
POWER SUPPLY 2
LB1 LB2 LB3 N
POWER SUPPLY 1
LA1 LA2 LA3 N
45
A
6.8.1.2 Connecting the connection cable between indoor and outdoor unit
The following method is correspondingly applicable for all outdoor units, but will be explained here
on the basis of the example of a 12 kW outdoor unit of the H Generation (→ Installation example
(Outdoor units), p. 179).
Carry out the following steps to connect the connection cable to the outdoor unit:
1. Lay the connecting cable from the indoor unit to the outdoor unit through the wall grommet.
2. Open the outdoor unit (→ 6.5 Opening devices, p. 155) and, if applicable, the connection
box.
3. If several possible cable glands are present on the outdoor unit (depends on the model),
select the desired cable gland, insert the rubber cable sleeve provided (1) and cut the cable
sleeve crosswise using a knife. If not, continue with the next step.
4. Guide the cable through the cable gland (2) into the device.
5. Fix the cable using a cable binders (3) and cable clamps/strain reliefs (4).
6. Connect the connection cable to the outdoor unit terminal (5) according to the following
installation example (see below) and take care to leave the earth conductor longer than the
other cables (c). Also ensure that you connect conductors of the same cable colour to the
same terminal numbers on outdoor and indoor unit.
7. Wrap the tubes and cables with cable tape (6) and x the cables by using fastening clamps if
necessary (7). Alternatively, you can install the tubes and cables in a cable channel.
8. Seal the wall grommet into the building using a suitable sealing compound (to be eld-
supplied) after installing all cables.
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