Daikin FTXS30HVJU, Service Manual

Page: 39 / 202

SiUS04-924 Control Specification
32 Function and Control
3.3.5 Compressor Protection Function
When turning the compressor from OFF to ON, the upper limit of frequency must be set as follows.
The function must not be used when defrosting.
C*: Within 1 hour after power ON, the values are same as in the zone-A.
3.4 Discharge PipeTemperature Control
Outline The discharge pipe temperature is used as the compressor's internal temperature. If the discharge
pipe temperature rises above a certain level, the operating frequency upper limit is set to keep this
temperature from going up further.
Detail
Divide the Zone
Management within the Zones
55.4˚F(13˚C)
35.6˚F(2˚C)
33.8˚F(1˚C)
A D
B
48.2˚F(9˚C) 68.0˚F(20˚C)
33.8˚F(1˚C)
discharge pipe temp.
C*
outdoor temp.
(R9863)
zone-A zone-B zone-C zone-D
FCG 1 46 46 55 46
FCG 2 65 65 65 65
FCG 3 80 80 80 80
TCG 1 500 500 120 500
TCG 2 180 100 200 180
TCG 3 470 470 470 470
Frequency
FCG3
FCG2
FCG1
TCG1sec TCG2sec TCG3sec
Time
(R9864)
Zone Control contents
Stop zone When the temperature reaches the stop zone, stop the compressor and
correct abnormality.
Dropping zone Start the timer, and the frequency is dropping.
Keep zone Keep the upper limit of frequency.
Return zone Cancel the upper limit of frequency.
A
B
C
D
E
(R9865)
A
B
C
D
E
30/36 class
248°F(120°C)
232°F(111°C)
228°F(109°C)
225°F(107°C)
225°F(107°C)
Stop zone
Dropping zone
Keep zone
Up zone
Return zone Heat exchanger
thermistor temperature