Main Functions
SiUS042113E
32
Part 4 Functions and Control
Refer to the table below for (a) Thermostat ON and (b) Thermostat OFF values in various room
temperatures when dry operation is started.
* 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.
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.
R4003500
Temperature when dry operation is
started
(a)
Thermostat
ON
(b)
Thermostat
OFF
(c)
(d)
26°C (78.8°F) ≤ Room temperature
–2.5°C
(–4.5°F)
–3°C
(–5.4°F)
–1.5°C
(–2.7°F)
–2°C
(–3.6°F)
23°C (73.4°F) ≤ Room temperature <
26°C (78.8°F)
–2.5°C
(–4.5°F)
–3°C
(–5.4°F)
–1.5°C
(–2.7°F)
–2°C
(–3.6°F)
Room temperature < 23°C (73.4°F)
–2°C
(–3.6°F)
–2.5°C
(–4.5°F)
–1°C
(–1.8°F)
–1.5°C
(–2.7°F)
Room temperature
zone
Fan tap
J
H
I
H
MH
G
F
E
M
D
C
ML
B
L
A
Compressor
Expansion valve
O
u
tdoor
u
nit
Liq
u
id pipe thermistor
Indoor
u
nit
Summary of Contents for FTXM-V Series
Page 16: ...SiUS042113E 12 Part 2 Specifications 1 Specifications 13 Part 2 Specifications...
Page 96: ...Troubleshooting SiUS042113E 92 Part 6 Service Diagnosis Reference Check No 01 Refer to P 134...
Page 150: ...Check SiUS042113E 146 Part 6 Service Diagnosis 18 24 class R24539 DC DC W V U...
Page 166: ...Piping Diagrams SiUS042113E 162 Part 8 Appendix RXM24VVJU 3D132217...
Page 171: ...SiUS042113E Operation Limit Part 8 Appendix 167 3 Operation Limit RXM09 12 18 24VVJU 3D133582A...
