105
H
Economy tariff meter
K
Feed: TNC system
L
Heat pump compressor stage 2
(type BWS)
Phase monitor (if installed)
The phase monitor is used to monitor the
mains power supply to the compressor.
The phase monitor switches off (switch-
ing contact opens) if the tolerances set
in the phase monitor are exceeded.
The phase monitor automatically re-ena-
bles the power supply if the values return
to within the specified tolerance range.
Remove the cause if the relay has
responded. The relay does not need to
be reset.
Version 1
A
H
B
C
G
F
E
D
D
<>U
A1
Asy
Ph
Rel
A2
L1
L2
L3
14
11
12
<>U
Asy
t
2
4
12
%
15
10
5
%
20
10
6
0.1
A
Over/undervoltage in %
B
Phase asymmetry in %
C
Switching delay in s
D
Contact used in safety chain (N/O)
E
ON/OFF indicator ("Rel")
F
Fault display phase failure/phase
sequence ("Ph")
G
Fault display asymmetry ("Asy")
H
Fault display over/undervoltage
("<>U")
LEDs explained
■ LED "Rel" illuminates green:
All voltages and the rotating field
(clockwise) are healthy.
■ LED "Ph" illuminates red:
The relay has responded; the rotating
field is anticlockwise.
■ All LEDs off:
One or more phases have dropped
out.
■ LED "<>U" illuminates red:
Incorrect voltage on one or more pha-
ses.
■ LED "Asy" illuminates red:
Asymmetry on one or more phases.
Installation sequence
Power supply
(cont.)
5609 667 GB
Installation
