Panasonic Urban Multi MX1R Series Service Manual page 452

PACD011001C2
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.
Demand control 1 A
Demand control 2 B
Demand control 3 All compressors in stop mode
„ 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.
Function UM Combination "MA1R Series" Using R-407C
Compressor upper-limit frequency Capacity reduction guideline
Upper-limit frequency (A)
Model
INV STD1
PA- 46Hz +ON
16MA1XPK
PA- 52Hz +ON
18MA1XPK
PA- 52Hz +ON
20MA1XPK
PA- 71Hz +ON
24MA1XPK
PA- 71Hz +ON
26MA1XPK
PA- 71Hz +ON
28MA1XPK
PA- 71Hz +ON
30MA1XPK
Reduces power consumption to approx. 70%
Reduces power consumption to approx. 40%
Forced thermostat OFF
Model
STD2
— PA-
16MA1XPK
— PA-
18MA1XPK
— PA-
20MA1XPK
+OFF PA-
24MA1XPK
+OFF PA-
26MA1XPK
+OFF PA-
28MA1XPK
+OFF PA-
30MA1XPK
Outline of Control
Upper-limit frequency(B)
INV STD1 STD2
52Hz +OFF —
62Hz +OFF —
62Hz +OFF —
75Hz +OFF +OFF
75Hz +OFF +OFF
75Hz +OFF +OFF
75Hz +OFF +OFF
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