SiUS042113E
Field Settings
Part 7 Trial Operation and Field Settings
153
Caution
Replace the remote controller if you cut a jumper unintentionally
.
Jumpers are necessary for electronic circuit. Improper operation may occur if you cut any of them.
4.3 Facility Setting (cooling at low outdoor temperature)
Outline
This function is limited only for facilities (the target of air conditioning is equipment such as
computers). Never use it in a residence or office (the space where there is a human).
Details
09/12 class
Cutting jumper 4 (J4) on the circuit board of the outdoor unit will expand the operation range to
14°F (–10°C). Installing an air direction adjustment grille (sold separately) will further extend the
operation range to –4°F (–20°C). In these cases, the unit will stop operating if the outdoor
temperature falls below –4°F (–20°C), restarting once the temperature rises above this level.
1. Remove the top plate of the outdoor unit. (4 screws)
2. Remove the electrical wiring box cover.
3. Cut the jumper (J4) of the PCB inside.
18/24 class
Turning on SW5-3 on the PCB of the outdoor unit will extend the operation range to 14°F (–10°C).
Installing an air direction adjustment grille (sold separately) will further extend the operation range
to –4°F (–20°C). In these cases, the unit will stop operating if the outdoor temperature falls below
–4°F (–20°C), restarting once the temperature rises above this level.
R7000285
R7000202
R7000337
(R22634)
J
u
mper (J4)
ADDRESS
J4
EXIST
CUT
1
2
Temp
b
u
tton
Mode
b
u
tton
Indoor unit
ON/OFF
switch
and operation lamp
PCB
HEAT
COOL
4
3
2
1
6
5
E
D
C
B
A
4
3
ON
OFF
2
1
SW5
T
u
rn on switch 3
Screw
Remove
the switch
cover
Содержание FTXM-V Series
Страница 13: ...SiUS042113E Part 1 General Information 9 1 Applicable Models 10 2 Functions 11 Part 1 General Information...
Страница 16: ...SiUS042113E 12 Part 2 Specifications 1 Specifications 13 Part 2 Specifications...
Страница 96: ...Troubleshooting SiUS042113E 92 Part 6 Service Diagnosis Reference Check No 01 Refer to P 134...
Страница 147: ...SiUS042113E Check Part 6 Service Diagnosis 143 09 12 class 18 24 class 1 2 3 4 Multimeter R24538 1 2 3 4 Multimeter...
Страница 150: ...Check SiUS042113E 146 Part 6 Service Diagnosis 18 24 class R24539 DC DC W V U...
Страница 165: ...SiUS042113E Piping Diagrams Part 8 Appendix 161 1 2 Outdoor Unit RXM09 12VVJU RXM18VVJU 3D131979 3D132216...
Страница 166: ...Piping Diagrams SiUS042113E 162 Part 8 Appendix RXM24VVJU 3D132217...
Страница 171: ...SiUS042113E Operation Limit Part 8 Appendix 167 3 Operation Limit RXM09 12 18 24VVJU 3D133582A...