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Setting option screens:
External control properties
16:47:55
06/08/2013
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External control properties
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Direct control signals
Type of control
Control function
Fixed set value heating in deg. C.
Modbus
External set value
Fixed set value
No set value
Up
Down
10
Fixed set value cooling in deg. C.
Up
Down
15
Min. pause duration in minutes
Only heating
Heating/cooling
Please note the description in the installation and service instructions.
Type of control
■
"Direct control signals"
determines the type of control signals for external con-
trol:
Enable signal 1 and 2
,
Changeover signal cooling/heating
and
Ana-
logue signal
for the set value.
Enable signals
■ There are 3 enable signals in the electrical scheme
■ Enable signal 1 and 2, both open: no compressor is enabled
■ 1 closed and 2 open: 1 compressor is enabled
■ 1 open and 2 closed: 2 compressors are enabled
■ 1 and 2 closed: 3 compressors are enabled
■ Enable signal 3: This input facilitates the changeover to cooling mode
■
Open
= heating mode
■
Closed
= cooling mode
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5848 246 GB
