PACD011001C2 Outline of Control
Function UM Combination “MA1R Series” Using R-407C 431
3.1.6 Demand Control
Forcibly reduces the outdoor unit capacity based on an external contact input (demand input) to decrease
power consumption. The following three types of demand control are provided.
„
Other protection control functions have precedence over the above operations.
∗
Optional PCB is required for this control. (DTA104A61, 62)
3.1.7 Restart Standby
Prevents compressor startup for a certain period of time once compressors stop operating, in order to
prevent frequent ON/OFF operations of compressors.
When all compressors (inverter compressor and STD compressors) stop operating, the thermostats remain
in forced OFF condition for 5 minutes.
Compressor upper-limit frequency Capacity reduction guideline
Demand control 1 A
Reduces power consumption to approx. 70%
Demand control 2 B
Reduces power consumption to approx. 40%
Demand control 3 All compressors in stop mode
Forced thermostat OFF
Model
Upper-limit frequency (A)
Model
Upper-limit frequency(B)
INV STD1 STD2 INV STD1 STD2
PA-
16MA1XPK
46Hz +ON — PA-
16MA1XPK
52Hz +OFF —
PA-
18MA1XPK
52Hz +ON — PA-
18MA1XPK
62Hz +OFF —
PA-
20MA1XPK
52Hz +ON — PA-
20MA1XPK
62Hz +OFF —
PA-
24MA1XPK
71Hz +ON +OFF PA-
24MA1XPK
75Hz +OFF +OFF
PA-
26MA1XPK
71Hz +ON +OFF PA-
26MA1XPK
75Hz +OFF +OFF
PA-
28MA1XPK
71Hz +ON +OFF PA-
28MA1XPK
75Hz +OFF +OFF
PA-
30MA1XPK
71Hz +ON +OFF PA-
30MA1XPK
75Hz +OFF +OFF
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