Daikin FTXM-V Series Service Manual page 36

Main Functions
Refer to the table below for (a) Thermostat ON and (b) Thermostat OFF values in various room
temperatures when dry operation is started.
26°C (78.8°F) ≤ Room temperature
23°C (73.4°F) ≤ Room temperature <
26°C (78.8°F)
Room temperature < 23°C (73.4°F)
* Refer to Thermostat Control on P. 34 for details.
 Indoor unit fan control in dry operation
During dry operation, fan rotation speed is automatically controlled according to the room
temperature zones shown above and airflow rate cannot be set manually. In addition, fan rotation
speed is also adjusted with the room humidity.
* In all steps from H to L, the fan rotation speed is specific to dry operation and different from that in
cooling operation.
Room temperature
 Liquid pipe temperature control using electronic expansion valve
Evaporation temperature in indoor unit is controlled to make the temperature indicated by the liquid
pipe thermistor, near the outlet side of the electronic expansion valve, reach the target temperature.
32
Temperature when dry operation is
started
Fan tap
zone
J
I
H
G MH
F
E
D
C ML
B
A
Outdoor
unit
(a)
Thermostat
ON
–2.5°C
(–4.5°F)
–2.5°C
(–4.5°F)
–2°C
(–3.6°F)
H
M
L
Liquid pipe thermistor
Expansion valve
Compressor
(b)
Thermostat (c)
OFF
–3°C –1.5°C
(–5.4°F) (–2.7°F)
–3°C –1.5°C
(–5.4°F) (–2.7°F)
–2.5°C –1°C
(–4.5°F) (–1.8°F)
Indoor
unit
Part 4 Functions and Control
SiUS042113E
(d)
–2°C
(–3.6°F)
–2°C
(–3.6°F)
–1.5°C
(–2.7°F)
R4003500