Function of the DIP switches
MVV 1200-1600 DC
DIP switch SW 3 / SW 7
ON
1 2 3
ON: Automatic addressing
OFF: Manual addressing
ON
1 2 3
ON: Cancellation of addressing
OFF: Factory setting
ON
1 2 3
ON: Non functional
(not available on SW7)
OFF: Non functional
(not available on SW7)
Function of the DIP switches MVV 2000 DC
Function S 5
DIP switch S 5
ON
1 2 3
Priority heating
ON
1 2 3
Priority cooling
ON
1 2 3
Priority initial start
ON
1 2 3
Only heating mode
ON
1 2 3
Only cooling mode
Function S 6
DIP switch S 6
ON
1 2 3
Automatic addressing
(factory setting)
ON
1 2 3
Manual addressing
ON
1 2 3
Reset addressing
9
Before commissioning
After leak testing has been successfully com-
pleted, connect the vacuum pump via the pressure
gauge station to the valve connections on the out-
door unit (see chapter "Leak testing") and create a
vacuum.
Perform the following checks prior to putting the
unit into operation for the first time and after any
work on the cooling cycle. Record the results in the
commissioning report:
n
Check all refrigerant piping and valves for leak-
tightness using leak detection spray or soapy
water.
n
Check the refrigerant piping and insulation for
damage.
n
Check the electrical connection between the
indoor unit and the outdoor unit for correct
polarity.
n
Check that all fastenings, mountings, etc. are
firm and at the correct level.
41
Содержание MVV 1200 Dc
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