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23 54 69 84 100 115 131 14638
14 32 41 50 59 68 77 86
MXZ-2A
MXZ-3A/4A23
Compressor operating frequency (Hz)
4Hz
01
02
03
04
05
06
07
08
09
10
LEV Opening (code)
Determination of LEV standard opening in each indoor unit
• The standard opening is on the straight line, which connects an each standard point in the section where divided into
seven according to the operation frequency of compressor as shown in the figure below.
(LEV opening is controlled in proportion to the operation frequency.)
NOTE: Opening is adjusted at the standard opening according to the indoor unit conditions.
However, inclination of standard opening in each point of opening does not change with the original curve.
• Add opening provided in Difference in capacity in the table below to the standard opening from 1 to 8, when capacity
of the indoor unit is excluding code 1.
• Add opening provided in Difference in operation number in the table below to determined LEV opening for each
indoor unit, when 2 or 3 indoor units are operated at the same time.
NOTE: Even when the adjusted standard opening exceeds the driving range from 59 to 500 pulse, actual driving out-
put opening is in a range from 59 to 500 pulse.
MXZ-2A20NA
Standard opening (pulse)
LEV Opening (code)
12345678910
COOL 120 130 136 146 156 160 170 180 190 200
HEAT 100 110 120 130 146 160 170 180 190 200
Difference in capacity
Difference in operation number
Code3,4 Code5,6 Code7,8
Code9,10 Code11,12 Code13,14
Code15or above
2
COOL 3 6 9 12 15 25 35 -20
HEAT 3 6 9 52 55 65 75 0
MXZ-3A30NA
Standard opening (pulse)
LEV Opening (code)
12345678910
COOL 126 130 134 138 140 142 182 228 296 310
HEAT 140 146 150 170 180 200 224 244 272 280
Difference in capacity
Difference in operation number
Code3,4 Code5,6 Code7,8
Code9,10 Code11,12 Code13,14
Code15or above
23
COOL 3 6 9 12 15 25 35 -20 -30
HEAT 3 6 9 52 55 65 75 0 0