56
L
N
L
N
M
1~
N
L
M
1~
N
L
1.5 μF
4 μF speed2
speed1
L N
C1 C2
Θ
Θ
Θ
A
B
C
D
E
F
G
H
K
L
L
M
O
N
Fig. 42
A
High limit safety cut-out reset button, DHW heat
pump
B
Compressor
C
Immersion heater
or
External heat generator with switching relay
D
Switching output for fan
Speed 1 slow (speed 1)
Speed 2 fast (speed 2)
E
Diverter valve, defrosting
F
Signal lead for the PV system (multifunctional
relay)
G
Not assigned
H
Top cylinder temperature sensor (NTC 50 k
Ω
),
L = 1000 mm
K
Air intake temperature sensor (NTC 50 k
Ω
),
L = 1500 mm
L
Evaporator temperature sensor (NTC 50 k
Ω
),
L = 500 mm
M
Programming unit connection
N
Switching output for safety high pressure switch
O
Premium/economy tariffs
P
Internal power supply
Connection and wiring diagram
Connection and wiring diagram
5788 057 GB
Appendix
