Hitachi RAK-18NH6AS Service Manual page 41

Combination of operations:
When operation mode is selected:
You cannot operate the indoor units in the following combinations.
The indoor unit which is switched on fi rst continues to operate, but
other indoor units which is switched on later, does not operate while
the lamp lights.
During automatic operation:
One unit Other unit
When heating operation is automatically selected for the fi rst indoor unit, the next
Cooling
indoor unit will then start to heat. Also, if cooling or dehumidifying is automatically
Heating
Dehumidifying selected for the fi rst indoor unit, the next indoor unit will also start to cool or dehu-
midify.
Circulating (fan)
Notes:
1. Refer to the PWRITE-ZU data for the constants expressed by capital alphabet letters in
the drawing.
2. The speed set of rotation for the fan motor in each operation mode are as shown in Table 1.
3. The set room temperatures in the diagram include the shift values in Table 2.
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