Micro Inverter Packaged Air-Conditioners Contents 2.1 Outline Of Operation Control By Microcomputer; Remote Control; Operation Control Function By The Wired Remote Control; Operation Control Function By The Indoor Control - Mitsubishi Heavy Industries SRK100VNXWZRF Service Manual

2.1 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER
2.1.1 Remote control ..................................................................... See page 4.
2.1.2 Operation control function by the wired remote control ............ See page 7.
2.1.3 Operation control function by the indoor control .................. See page 10.

2.1.4 Operation control function by the outdoor control

( I ) Models FDC100VNA-W, 100VSA-W
(1) Determination of compressor speed
Required compressor speed
(a) Cooling/dehumidifying operation
Max. required
compressor speed
Min. required compressor speed
(b) Heating operation
Max. required
compressor speed
Min. required compressor speed
(c) If the indoor unit fan speed becomes "Me" or "Lo", Max required compressor speed goes down accordingly
depending on indoor unit model.
(d) Max. required compressor speed under high outdoor air temperature in cooling mode
Maximum required compressor speed is selected according to the outdoor air temperature (Tho-A).
Max. required
compressor speed
(e) Max. required compressor speed under high outdoor air temperature in heating mode
Maximum required compressor speed is selected according to the outdoor air temperature (Tho-A).
Max. required
compressor speed
(f) Selection of max. required compressor speed by heat exchanger temperature
(i) Maximum required compressor speed is selected according to the outdoor heat exchanger temperature (Tho-R)
during cooling/dehumidifying or according to the indoor heat exchanger temperature (Th2) during heating mode.
(ii) When there are 2 indoor heat exchanger temperatures (Th2), whichever the higher applies.
When there are 2 outdoor heat exchanger temperatures (Tho-R), whichever the higher applies.
Max. required
compressor speed
(g) When any of the controls from (a) to (f) above may duplicate, whichever the smallest value among duplicated
controls is taken as the maximum required compressor speed.
(h) During heating, it is operated with the maximum required compressor speed until the indoor heat exchanger
temperature becomes 40°C or higher.
Model
Usual operation
Silent mode, outdoor temperature ≦
15°C
Model
Usual operation
Silent mode
Model
Outdoor air temperature is 40°C or higher
Outdoor air temperature is 46°C or higher
Model
Outdoor air temperature is 18°C or higher
Outdoor air temperature is 10°C or higher
Model
Cooling/ Outdoor unit heat exchanger
dehumidifying temperature is 55°C or higher
Indoor unit heat exchanger
Heating
temperature is 55°C or higher
-
SW7-3 OFF
SW7-3 ON
SW7-3 OFF
SW7-3 ON
152
-
'22 • PAC-SM-422
Unit: rps
100
90
60
47
14
Unit: rps
100
90
60
47
15
Unit: rps
100
75
75
Unit: rps
100
60
90
Unit: rps
100
90
90