Discharge Pipe Temperature Control - Daikin FTXR-T Series Service Manual

Control Specification
3.4

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
the discharge pipe temperature from rising further.
Details
Stop zone
Dropping zone
Keep zone
Up zone
Reset zone
A
B
C
D
E
50
B
C
D
Discharge pipe
temperature
Zone
When the temperature reaches the stop zone, the compressor stops.
The upper limit of frequency decreases.
The upper limit of frequency is kept.
The upper limit of frequency increases.
The upper limit of frequency is canceled.
09/12 class
(°C) (°F) (°C)
110 230.0 110
103 217.4 103
98 208.4 101.5
93 199.4 100
88 190.4 95
Control
18 class
(°F)
230.0
217.4
214.7
212.0
203.0
SiUS041829E
Stop zone
A
Dropping zone
Keep zone
Up zone
E
Reset zone
(R25005)
Part 4 Functions and Control