Discharge Pipe Temperature Control - Daikin 2MXS40H2V1B Service Manual

Control Specification
4.3.5 Compressor Protection Function
When turning the compressor from OFF to ON, the upper limit of frequency is set as follows.
(The function is not used when defrosting.)
4.4

Discharge Pipe Temperature Control

Outline The discharge pipe temperature is used as the internal temperature of the compressor. If the
discharge pipe temperature rises above a certain level, the upper limit of frequency is set to
keep this temperature from rising further.
Detail
95
(Hz)
Frequency
C
B
A
A (Hz)
B (Hz)
C (Hz)
D (seconds)
E (seconds)
F (seconds)
A
B
Discharge pipe
temperature
A(°C)
B(°C)
C(°C)
D(°C)
E(°C)
Zone
Stop zone When the temperature reaches the stop zone, the compressor stops.
Dropping zone The upper limit of frequency decreases.
Keep zone The upper limit of frequency is kept.
Reset zone The upper limit of frequency is canceled.
D E F
40 class 50 class
62 55
72 70
90 85
140 150
180 180
300 300
Stop zone
Dropping
zone
C
Keep
zone
D
Reset zone
40 class 50 class
110 110
103 103
102 102
101 100
97 95
Control
SiBE121123_A
(sec.)
Time
(R13528)
E
(R14266)
Function and Control