Si18-525B
Instruction
Operation Manual
281
Do not expose animals and plants directly to
the wind from the air conditioner.
Adverse influence to animals and plants may
result.
Do not wash the air conditioner with water.
An electric shock may result.
Do not install the air conditioner at any place
where flammable gas may leak out.
If the gas leaks out and stays around the air con-
ditioner, a fire may break out.
Be sure to install an earth leakage breaker.
Unless it is installed, an electric shock may result.
Be sure the air conditioner is electrically
grounded.
Do not connect the grounding conductor to a gas
pipe, water pipe, lightning arrester, and the
grounding conductor for a telephone.
Imperfect grounding work may result in an electric
shock.
Execute complete drain piping for perfect
drainage.
Incomplete piping may result in a water leakage.
The appliance is not intended for use by young
children or infirm persons without supervision.
Young children should be supervised to ensure
that they do not play with the appliance.
If the temperature or the humidity is beyond the fol-
lowing conditions, safety devices may work and the
air conditioner may not operate, or sometimes,
water may drop from the indoor unit.
COOLING
HEATING
DB: Dry bulb temperature (˚C)
WB: Wet bulb temperature (˚C)
The setting temperature range of the remote con-
troller is 16
˚
C to 32
˚
C.
The numerical value in a parenthesis shows the
operation range of the model for Australia.
Regarding places for installation
• Is the air conditioner installed at a well-venti-
lated place where there are no obstacles
around?
• Do not use the air conditioner in the following
places.
a. Filled with much mineral oil such as cutting oil
b. Where there is much salt such as a beach
area
c. Where sulfured gas exists such as a hot-spring
resort.
d. Where there are considerable voltage
fluctuations such as a factory or plant
e. Vehicles and vessels
f. Where there is much spray of oil and vapor
such as a cookery, etc.
g. Where there are machines generating
electromagnetic waves.
h. Filled with acid and/or alkaline steam or vapor
• Is a snow protection measure taken?
For details, consult your dealer.
Regarding wiring
• All wiring must be performed by an authorized
electrician.
To do wiring, ask your dealer. Never do it by
yourself.
• Make sure that a separate power supply circuit
is provided for this air conditioner and that all
electrical work is carried out by qualified per-
sonnel according to local laws and regulations.
Pay attention to running noises, too
• Are the following places selected?
a. A place that can sufficiently withstand the
weight of the air conditioner with less running
noises and vibrations.
b. A place where the hot wind discharged from
the air outlet of outdoor unit and the running
noises.
• Are you sure that there are no obstacles near
the air outlet of the outdoor unit?
Such obstacles may result in declined perfor-
mance and increased running noises.
• If abnormal noises occur in use, stop the oper-
ation of the air conditioner, and then consult
your dealer or our service station.
Regarding drainage of drain piping
• Is the drain piping executed to perform com-
plete drainage?
If proper drainage is not carried out from the out-
3. OPERATION RANGE
OUTDOOR
UNIT
INDOOR
OUTDOOR
TEMPERA-
TURE
TEMPERA-
TURE
HUMID-
ITY
RS50 · 60
RKS25 · 35 ·
50 · 60
RXS25 · 35 ·
50 · 60
D
B 21 to 32
80% or
below
D
B
-10 to 46
(-5)
W
B
14 to 23
3MKS50
4MKS58 · 75 ·
90
3MXS52
4MXS68 · 80
D
B 21 to 32
80% or
below
D
B
-10 to 46
W
B
14 to 23
OUTDOOR
UNIT
INDOOR
TEMPERATURE
OUTDOOR
TEMPERATURE
RXS25 · 35
DB
10 to 30
DB
-14 to 24
WB
-15 to 20
RXS50 · 60
DB
10 to 30
DB
-14 to 24
WB
-15 to 18
3MXS52
4MXS68 · 80
DB
10 to 30
DB
-14 to 21
WB
-15 to 15.5
4. INSTALLATION SITE
Summary of Contents for D-Series
Page 1: ...Si18 525B Applied Models Super Multi Plus Cooling only Super Multi Plus Heat Pump D Series ...
Page 33: ...List of Functions Si18 525B 20 List of Functions ...
Page 71: ...Specifications Si18 525B 58 Specifications ...
Page 117: ...Refrigerant Flow for Each Operation Mode Si18 525B 104 Refrigerant Circuit ...
Page 171: ...Indoor Unit SkyAir Models Si18 525B 158 Function ...
Page 207: ...Test Operation and Field Setting for RA Indoor Unit Si18 525B 194 Test Operation ...
Page 336: ...Si18 525B Service Check Function Troubleshooting 323 ...
Page 469: ...Wiring Diagrams Si18 525B 456 Appendix ...
Page 475: ...Si18 525B vi Index ...