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(2) Silent mode control
(
Note) With 7-segment display [P07]-[3] for silent mode 1
or with 7-segment display [P07]-[8] for silent mode 2
(a) Start conditions
When all the followings are satisfied
(i) When the strat command of silent mode input from indoor unit or from external input terminal of outdoor unit has
become effective.
Silent mode 1: when [07]=3 and CnS1is shorted
Silent mode 2: when [07]=8 and CnS1is shorted
(Note) Silent mode 1 and 2 can not be set at same time.
(ii) When the outdoor operation mode is “Operation”
(iii) In case of external input of silent mode 1, the ambient air temperature should be satisfied with the following
conditions.
(Note) In case of external input of silent mode 2, these conditions can be disregarded.
1) Silent setting 0, 1: Effective in zone A and B
2) Silent setting 2, 3: Effective in zone B
(Note) Silent setting 0 to 3 can be swiched by [P05] of 7-segment display.
(b) Control contents
Contents of setting are changed with the silent setting of outdoor unit.
(i) Upper limit of compressor is restricted.
(ii) Upper limit speed of outdoor fan is restricted.
All models Compressor upper limit speed (rps) Outdoor fan upper limit speed (rpm)
Silent setting 0
(Factory default)
70 610
Silent setting 1 60 550
Silent setting 2 50 520
Silent setting 3 40 440
(c) End condition
• When the starting conditions are not established
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