54
Terminals
Function
Explanation
X3.1
Switched phase.
Via control unit ON/OFF switch.
Note
Observe the total load (1000 W) of all con-
nected components.
X3.3
X3.4
Flow limiter
Requires zero volt
N/O
contact:
■ Closed: Heat pump in operation
■ Open: Heat pump shut down
■ Breaking capacity 230 V, 015 A
Remove jumper when making this connec-
tion.
X3.6
X3.7
G
Power-OFF (factory-fitted
jumper).
Requires zero volt
N/C
contact:
■ Closed: Heat pump in operation
■ Open: Heat pump shut down
■ Breaking capacity 230 V, 0.15 A
Remove jumper when making this connec-
tion.
Note
■ No parameters need to be set.
■ The compressor is "forced" off as soon
as the contact opens.
■ The supply voltage to the respective
components is switched off by the pow-
er-OFF contact signal.
■ For the instantaneous heating water
heater, the stages to be switched off can
be selected (parameter "Output for in-
stant. heating water heater at power-
OFF 790A").
■ For further information regarding power-
OFF, see chapter "Power supply".
Installation sequence
Electrical connection
(cont.)
5623 661 GB
Содержание Vitocal 242-S
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Страница 27: ...27 SLP N 9 11 aCH sG lJ 10 Installation sequence Installing the internal unit cont 5623 661 GB Installation ...
Страница 28: ...28 X20 2x 16 17 2x 12 14 18 13 15 Installation sequence Installing the internal unit cont 5623 661 GB ...
Страница 29: ...29 2x 4x 4x 6x 21 19 20 22 Installation sequence Installing the internal unit cont 5623 661 GB Installation ...
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Страница 95: ...95 Removing cover from programming unit if necessary 5 4 4x Troubleshooting Repairs cont 5623 661 GB Service ...
Страница 110: ...110 0003 0006 0005 0008 0007 0001 0009 0010 0002 0004 Parts lists internal unit Internal unit casing cont 5623 661 GB ...