Upper Current Limitation Mode (Demand Control) - Panasonic U-72MF2U9 Service Manual

10. Upper Current Limitation Mode (Demand control)

11. Upper Current Limitation Mode (Demand control)

There are 2 types of control; demand control and infinity limit in the upper current limitation mode.
Either of them is controlled by the lower current limitation.
The standard value of the limit current is listed in the table below.
Type of outdoor unit
Cooling mode
Heating mode
Mixed mode (Cooling/Heating)
11-1. Demand Control
Serial-parallel I/O must be connected in order to perform demand control.
The below input is received by serial-parallel I/O, and demand control is performed.
The demand values can be set as needed with serial-parallel I/O.
Upper current limitation setting
Contact 1 Contact 2
: Input present
: Input not present
* The rated current indicates the current value that is listed in the catalog or similar material.
* XX and YY are able to set in EEPROM of main outdoor unit.
EEPROM setting in main outdoor unit
CODE: 1A
Setting No.
0
40
45
100 100 (factory preset mode)
140
-1
It is able to display the present condition on the remote controller.
EEPROM setting in main outdoor unit
CODE: 1E
Setting No.
0 No display
1 When demand control active, "demand - actived" displayed (factory preset mode).
2 When forced thermostat OFF with demand control active, "demand - actived" displayed.
72
14.4 A 23.0 A
16.4 A 25.0 A
16.4 A 25.0 A
No control (Operates to maximum capacity)
Operates to XX% of the upper limit for the rated current.
Operates to YY% of the upper limit for the rated current.
Forced thermostat OFF setting
XX
0
40
45
Interval of "5"
140
No control
1 - 39
96 120
26.8 A
28.8 A
28.8 A
Control
CODE: 1B
Setting No.
0
40
45
70 70 (factory preset mode)
140
-1
3WAY SYSTEM
3WAY VRF SYSTEM
Control Functions
Control Functions
144
36.8 A
38.3 A
38.3 A
YY
0
40
45
Interval of "5"
140
No control
1
2
3
4
5
6
7
8
9