<SUPER DIGITAL INVERTER>
RAV-SP562AT-ERAV-SP802AT-ERAV -SP1102AT-ERAV-SP1402AT-E
R410A
PRINTED IN JAPAN, Jan.,2006 ToMo
ADOPTION OF NEW REFRIGERANT
This Air Conditioner is a new type which adopts a new refrigerant HFC (R410A) instead of the con ventional
refrigerant R22 in order to prevent destruction of the oz one layer.
WARNING
Cleaning of the air filter and other parts of the air filter involves dangerous work in high places, so be sure to ha ve
a service person do it. Do not attempt it yourself. The cleaning diagram for the air filter is there for the service
person, and not for the customer.
NOTE
A direct current motor is adopted for indoor f an motor in the Concealed Duct Standard Type air conditioner.
Caused from its characteristics, a current limit works on the direct current motor. When replacing the highperformance filter or when opening the service board, be sure to stop the fan. If an above action is ex ecuted
during the fan operation, the protective control works to stop the unit operation, and the check code “P12”
may be issued. However it is not a trouble. When the desired operation has finished, be sure to reset the
system to clear “P12” error code using the leak breaker of the indoor unit. Then push the operation stop
button of the remote controller to return to the usual operation.
15-3. Replacement of Main Parts (Sold Separately).............................................. 182
16. CORD HEATER INSTALLATION WORK ............................................... 184
– 3 –
SAFETY CAUTION
The important contents concerned to the saf ety are described on the product itself and on this Service Manual.
Please read this Service Manual after understanding the described items thoroughly in the following contents
(Indications/Illustrated marks), and keep them.
[Explanation of indications]
Indication
DANGER
WARNING
CAUTION
∗ Property damage : Enlarged damage concerned to property, furniture, and domestic animal/pet
Indicates contents assumed that an imminent danger causing a death or serious injury of
the repair engineers and the third parties when an incorrect work has been executed.
Indicates possibilities assumed that a danger causing a death or serious injury of the
repair engineers, the third parties, and the users due to troubles of the product after work
when an incorrect work has been executed.
Indicates contents assumed that an injury or property damage ( ∗) may be caused on the
repair engineers, the third parties, and the users due to troubles of the product after work
when an incorrect work has been executed.
Explanation
[Explanation of illustrated marks]
MarkExplanation
Indicates prohibited items (Forbidden items to do)
The sentences near an illustrated mark describe the concrete prohibited contents.
Indicates mandatory items (Compulsory items to do)
The sentences near an illustrated mark describe the concrete mandatory contents.
Indicates cautions (including danger/warning)
The sentences or illustration near or in an illustrated mark describe the concrete cautious contents.
[Confirmation of warning label on the main unit]
Confirm that labels are indicated on the specified positions
(Refer to the Parts disassembly diag r am (Outdoor unit).)
If removing the label during parts replace, stick it as the original.
DANGER
Turn “OFF” the breaker before removing the front panel and cabinet, otherwise an electric
shock is caused by high voltage resulted in a death or injur y.
During operation, a high voltage with 400V or higher of circuit (∗) at secondary circuit of the highvoltage transformer is applied.
Turn off breaker.
Execute discharge
between terminals.
Prohibition
If touching a high voltage with the naked hands or body, an electric shock is caused even if using an
electric insulator.
∗ : For details, refer to the electric wiring diagram.
When removing the front panel or cabinet, execute short-circuit and discharge between highvoltage capacitor terminals.
If discharge is not executed, an electric shock is caused by high voltage resulted in a death or injury.
After turning off the breaker, high voltage also keeps to apply to the high-voltage capacitor.
Do not turn on the breaker under condition that the front panel and cabinet are removed.
An electric shock is caused by high voltage resulted in a death or injury.
– 4 –
Check earth wires.
Prohibition of modification.
Use specified parts.
Do not bring a child
close to the equipment.
Insulating measures
No fire
WARNING
Before troubleshooting or repair work, check the earth wire is connected to the earth
terminals of the main unit, otherwise an electric shock is caused when a leak occurs.
If the earth wire is not correctly connected, contact an electric engineer for rework.
Do not modify the products.
Do not also disassemble or modify the parts. It may cause a fire, electric shock or injury.
For spare parts, use those specified (
If unspecified parts are used, a fire or electric shock may be caused.
∗: For details, refer to the parts list.
Before troubleshooting or repair work, do not bring a third party (a child, etc.) except
the repair engineers close to the equipment.
It causes an injury with tools or disassembled parts.
Please inform the users so that the third party (a child, etc.) does not approach the equipment.
Connect the cut-off lead cables with crimp contact, etc, put the closed end side
upward and then apply a water-cut method, otherwise a leak or production of fire is
caused at the users’ side.
When repairing the refrigerating cycle, take the following measures.
1) Be attentive to fire around the cycle. When using a gas stove, etc, be sure to put out fire
before work; otherwise the oil mixed with refrigerant gas may catch fire.
2) Do not use a welder in the closed room. When using it without ventilation, carbon
monoxide poisoning may be caused.
3) Do not br ing inflammables close to the refrigerant cycle, otherwise fire of the welder may
catch the inflammables.
∗∗
∗).
∗∗
Refrigerant
Check the used refrigerant name and use tools and materials of the parts which
match with it.
For the products which use R410A refrigerant, the refrigerant name is indicated at a
position on the outdoor unit where is easy to see. To prevent miss-charging, the route of the
service port is changed from one of the former R22.
For an air conditioner which uses R410A, never use other refrigerant than R410A.
For an air conditioner which uses other refrigerant (R22, etc.), never use R410A.
If different types of refrigerant are mixed, abnormal high pressure generates in the refrigerating cycle and an injury due to breakage may be caused.
Do not charge refrigerant additionally.
If charging refrigerant additionally when refrigerant gas leaks, the refrigerant composition in
the refrigerating cycle changes resulted in change of air conditioner characteristics or
refrigerant over the specified standard amount is charged and an abnormal high pressure is
applied to the inside of the refrigerating cycle resulted in cause of breakage or injury.
Therefore if the refrigerant gas leaks, recover the refrigerant in the air conditioner, execute
vacuuming, and then newly recharge the specified amount of liquid refrigerant. In this time,
never charge the refrigerant over the specified amount.
When recharging the refrigerant in the refrigerating cycle, do not mix the refrig erant
or air other than R410A into the specified refrigerant.
If air or others is mixed with the refrigerant, abnormal high pressure generates in the
refrigerating cycle resulted in cause of injury due to breakage.
After installation work, check the refrigerant gas does not leak.
If the refrigerant gas leaks in the room, poisonous gas generates when gas touches to fire
such as fan heater, stove or cocking stove though the refrigerant gas itself is innocuous.
Never recover the refrigerant into the outdoor unit.
When the equipment is moved or repaired, be sure to recover the refrigerant with recovering device. The refrigerant cannot be recovered in the outdoor unit; otherwise a serious
accident such as breakage or injury is caused.
Assembly/Cabling
After repair work, surely assemble the disassembled parts, and connect and lead the
removed cables as before. Perform the work so that the cabinet or panel does not
catch the inner cables.
If incorrect assembly or incorrect cable connection was done, a disaster such as a leak or
fire is caused at user’s side.
– 5 –
WARNING
Insulator check
Ventilation
Be attentive to
electric shock
Compulsion
After the work has finished, be sure to use an insulation tester set (500V mugger) to
check the resistance is 2M
metal section (Earth position).
If the resistance value is low, a disaster such as a leak or electric shock is caused at user’s
side.
When the refrigerant gas leaks during work, execute ventilation.
If the refrigerant gas touches to a fire, poisonous gas generates. A case of leakage of the
refrigerant and the closed room full with gas is dangerous because a shortage of oxygen
occurs. Be sure to execute ventilation.
When checking the circuit inevitably under condition of the power-ON, use rubber
gloves and others not to touch to the charging section.
If touching to the charging section, an electric shock may be caused.
When the refrigerant gas leaks, find up the leaked position and repair it surely.
If the leaked position cannot be found up and the repair work is interrupted, pump-down
and tighten the service valve, otherwise the refrigerant gas may leak into the room.
The poisonous gas generates when gas touches to fire such as fan heater, stove or cocking
stove though the refrigerant gas itself is innocuous.
When installing equipment which includes a large amount of charged refrigerant such
as a multi air conditioner in a sub-room, it is necessary that the density does not the
limit even if the refrigerant leaks.
If the refrigerant leaks and exceeds the limit density, an accident of shortage of oxygen is
caused.
For the installation/moving/reinstallation work, follow to the Installation Manual.
If an incorrect installation is done, a trouble of the refrigerating cycle, water leak, electric
shock or fire is caused.
ΩΩ
Ω or more between the charge section and the non-charge
ΩΩ
Check after rerair
Check after reinstallation
Put on gloves
Cooling check
After repair work has finished, check there is no trouble.
If check is not executed, a fire, electric shock or injury may be caused. For a check, turn off
the power breaker.
After repair work (installation of front panel and cabinet) has finished, execute a test
run to check there is no generation of smoke or abnormal sound.
If check is not executed, a fire or an electric shock is caused. Before test run, install the
front panel and cabinet.
Check the following items after reinstallation.
1) The earth wire is correctly connected.
2) The power cord is not caught in the product.
3) There is no inclination or unsteadiness and the installation is stable.
If check is not executed, a fire, an electric shock or an injury is caused.
CAUTION
Be sure to put on gloves (
If not putting on gloves, an injury may be caused with the parts, etc.
(∗) Heavy gloves such as work gloves
When the power was turned on, start to work after the equipment has been
sufficiently cooled.
As temperature of the compressor pipes and others became high due to cooling/heating
operation, a burn may be caused.
∗∗
∗) during repair work.
∗∗
– 6 –
•New Refrigerant (R410A)
This air conditioner adopts a new HFC type refrigerant (R410A) which does not deplete the ozone layer.
1. Safety Caution Concerned to New Refrigerant
The pressure of R410A is high 1.6 times of that of the former refrigerant (R22). Accompanied with change of
refrigerant, the refrigerating oil has been also changed. Therefore, be sure that water, dust, the former
refrigerant or the former refrigerating oil is not mixed into the refrigerating cycle of the air conditioner with
new refrigerant during installation work or service work. If an incorrect work or incorrect service is performed, there is a possibility to cause a serious accident. Use the tools and materials exclusive to R410A to
purpose a safe work.
2. Cautions on Installation/Service
1) Do not mix the other refrigerant or refrigerating oil.
For the tools e xclusive to R410A, shapes of all the joints including the service port differ from those of the
former refrigerant in order to prev ent mixture of them.
2) As the use pressure of the new refrigerant is high, use material thickness of the pipe and tools which are
specified for R410A.
3) In the installation time, use clean pipe materials and work with great attention so that water and others do
not mix in because pipes are affected by impurities such as water, oxide scales, oil, etc. Use the clean
pipes.
Be sure to brazing with flowing nitrogen gas. (Never use gas other than nitrogen gas.)
4) For the earth protection, use a vacuum pump for air purge.
5) R410A refrigerant is azeotropic mixture type refrigerant. Therefore use liquid type to charge the refrigerant. (If using gas for charging, composition of the refrigerant changes and then characteristics of the air
conditioner change.)
3. Pipe Materials
For the refrigerant pipes, copper pipe and joints are mainly used. It is necessary to select the most appropriate pipes to conform to the standard. Use clean material in which impurities adhere inside of pipe or joint to a
minimum.
1) Copper pipe
<Piping>
The pipe thickness, flare finishing size , flare nut and others differ according to a refrigerant type.
When using a long copper pipe for R410A, it is recommended to select “Copper or copper-base pipe without
seam” and one with bonded oil amount 40mg/10m or less . Also do not use crushed, deformed, discolored
(especially inside) pipes. (Impurities cause clogging of expansion valves and capillary tubes.)
<Flare nut>
Use the flare nuts which are attached to the air conditioner unit.
2) Joint
The flare joint and socket joint are used for joints of the copper pipe. The joints are rarely used for installation of the air conditioner. However clear impurities when using them.
– 7 –
4. Tools
q
q
g
1. Required T ools for R410A
Mixing of different types of oil may cause a trouble such as generation of sludge, clogging of capillary , etc.
Accordingly, the tools to be used are classified into the following three types.
1) Tools exclusive f or R410A (Those which cannot be used for conventional refrigerant (R22))
2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22)
3) Tools commonly used for R410A and for conventional refrigerant (R22)
The table below shows the tools exclusive for R410A and their interchangeability.
Tools exclusive for R410A (The following tools for R410A are required.)
Tools whose specifications are changed for R410A and their interchangeability
air conditioner installation
No.Used toolUsage
Flare toolPipe flaringYes*(Note 1)Yes
Copper pipe gauge for
adjusting projection
margin
Torque wrenchConnection of flare nutYesNoNo
Running current(A)8.42 – 7.7211.32 – 10.37 16.30 – 16.00 19.20 – 17.60
Power consumption(kW)1.762.343.524.09
Power factor(%)95949897
EER(W/W)3.013.032.843.01
Energy efficiency class *BBCB
Energy rating **3.53.53.03.5
Running current(A)6.89 – 6.3211.22 – 10.28 16.10 – 14.80 18.70 – 17.20
Power consumption(kW)1.442.323.484.00
Power factor(%)95949897
COP(W/W)3.893.453.223.50
Energy efficiency class *ABCB
Energy rating **5.03.53.54.0
Running current(A)7.17 – 6.578.95 – 8.2111.24 – 10.31 16.51 – 15.14
Power consumption(kW)1.531.932.403.56
Power factor(%)97989798
EER(W/W)3.463.684.173.51
Energy efficiency class *AAAA
Energy rating **————
Running current(A)5.62 – 5.159.42 – 8.6312.28 – 11.25 16.60 – 15.22
Power consumption(kW)1.202.032.623.58
Power factor(%)97989798
COP(W/W)4.673.944.273.91
Energy efficiency class *AAAA
Energy rating **————
Running current(A)8.99 – 8.2412.23 – 11.21 16.50 – 15.10 20.70 – 19.00
Power consumption(kW)1.782.533.564.42
Power factor(%)90949897
EER(W/W)2.812.812.812.83
Energy efficiency class *CCCC
Energy rating **3.03.03.53.0
Running current(A)8.18 – 7.5011.65 – 10.68 14.56 – 13.35 18.88 – 17.31
Power consumption(kW)1.712.413.144.03
Power factor(%)95949897
COP(W/W)3.273.323.573.47
Energy efficiency class *CCBB
Energy rating **3.03.55.04.0
Model—
Panel color—
Height(mm)320320320320
Width(mm)700100013501350Main unit
Depth(mm)800800800800
Height(mm)————
Width(mm)————
Depth(mm)————
UFM21BE
UFM61BE
Gas side(mm)12.715.915.915.9
Liquid side(mm)6.49.59.59.5Connecting pipe
Drain port(mm)VP25
Running current(A)6.51 – 5.979.74 – 8.9311.72 – 10.74 18.09 – 16.58
Power consumption(kW)1.392.102.503.90
Power factor(%)97989798
EER(W/W)3.603.384.003.21
Energy efficiency class *AAAA
Energy rating **————
Running current(A)7.26 – 6.669.74 – 8.9311.72 – 10.74 16.70 – 15.31
Power consumption(kW)1.552.102.503.60
Power factor(%)97989798
COP(W/W)3.613.814.483.89
Energy efficiency class *AAAA
Energy rating **————
Model—
Panel color—
Height(mm)320320320320
Width(mm)700100013501350Main unit
Depth(mm)800800800800
Height(mm)————
Width(mm)————
Depth(mm)————
UFM21BE
UFM61BE
Gas side(mm)12.715.915.915.9
Liquid side(mm)6.49.59.59.5Connecting pipe
Drain port(mm)VP25
Running current(A)8.71 – 7.9812.23 – 11.21 16.20 – 14.90 21.18 – 19.40
Power consumption(kW)1.822.533.514.52
Power factor(%)95949897
EER(W/W)2.752.772.852.72
Energy efficiency class *DDCD
Energy rating **2.52.53.02.5
Running current(A)7.85 – 7.1911.94 – 10.95 14.84 – 13.61 19.40 – 17.78
Power consumption(kW)1.642.473.204.14
Power factor(%)95949897
COP(W/W)3.413.243.503.38
Energy efficiency class *BCBC
Energy rating **4.04.05.03.5
Running current(A)6.61 – 6.069.47 – 8.9311.24 – 10.31 18.09 – 16.58
Power consumption(kW)1.412.102.403.90
Power factor(%)97989798
EER(W/W)3.553.384.173.21
Energy efficiency class *AAAA
Energy rating **————
Running current(A)7.03 – 6.4410.20 – 9.3511.72 – 10.74 17.39 – 15.94
Power consumption(kW)1.502.202.503.75
Power factor(%)97989798
COP(W/W)3.733.644.483.73
Energy efficiency class *AAAA
Energy rating **————
Running current(A)16.33–14.97 19.17–17.57 16.51–15.14 20.71–18.99 16.28–14.92 21.18–19.42
Power consumption(kW)3.524.093.564.423.514.52
Cooling
Heating
FanTurbo fanTurbo fanCentrifugalCentrifugalCentrifugalCentrifugal
Standard air flowH/M/L(m³/min)
Motor(W)60601201203040
Standard length(m)7.57.57.57.57.57.5
Min. length(m)5 .05.05.05.05.05.0
Max. total length(m)505050505050
Over 30m40g/m (31m to 50m)
Height
difference
FanPropeller fan
Standard air flow high(m³/min)757575757575
Motor(W)100100100100100100
Gas side
Liquid side
Power factor(%)989798979897
EER(W/W)2.843.062.812.832.852.72
Energy efficiency class *CBCCCD
Running current(A)14.56–13.35 18.74–17.18 14.56–13.35 18.88–17.31 14.84–13.61 19.40–17.78
Power consumption(kW)3.144.003.144.033.204.14
Power factor(%)989798979897
COP(W/W)3.573.503.573.473.503.38
Energy efficiency class *BBBBBC
FanTurbo fanTurbo fanCentrifugalCentrifugalCentrifugalCentrifugal
Standard air flowH/M/L(m³/min)
Motor(W)60601201203040
Standard length(m)7.57.57.57.57.57.5
Min. length(m)5 .05.05.05.05.05.0
Max. total length(m)505050505050
Over 30m40g/m (31m to 50m)
Height
difference
FanPropeller fan
Standard air flow high(m³/min)125125125125125125
Motor(W)63 + 6363 + 6363 + 6363 + 6363 + 6363 + 63
Gas side
Liquid side
Power factor(%)979897989798
EER(W/W)4.173.514.003.214.173.21
Energy efficiency class *AAAAAA
Running current(A)11.95–10.95 16.60–15 .22 1 1. 95–10.95 16.70–15.31 11.95–10.95 17.39–15.94
Power consumption(kW)2.553.582.553.602.553.75
Power factor(%)979897989798
COP(W/W)4.393.914.393.894.393.79
Energy efficiency class *AAAAAA
AppearanceSilky shade (Muncel 1Y8.5/0.5)
Total weight(kg)38427777
Heat exchangerFinned tube
FanPropeller fan
Standard air flow(m³/h)40457575Fan unit
Motor(W)4343100100
Connecting pipe
Sound pressure levelCooling/Heating(dB•A)46/4848/5053/5453/54
Sound power levelCool ing/Heating(dB•A)63/6565/6770/7170/71
Outside air temperature, Cooling(°C)43 to –15
Outside air temperature, Heating(°C)15 to –15
Gas side(mm)12.715.915.915.9
Liquid side(mm)6.49.59.59.5
– 17 –
<Super Digital Inverter>
g
Model name
Power supply1 phase 230V (220 – 240V) 50Hz (Power exclusive to outdoor is required.)
Ty peHermetic comp re sso r
Motor(kW)2.02.03.753.75Compressor
Pole4444
Refrigerant char ged(kg)1.52.12.952.95
Refrigerant controlPulse motor valve
AppearanceSilky shade (Muncel 1Y8.5/0.5)
Total weight(kg)55629595
Heat exchangerFinned tube
FanPropeller fan
Standard air flow(m³/h)5757125125Fan unit
Motor(W)636363 + 6363 + 63
Connecting pipe
Sound pressure levelCooling/Heating(dB•A)46/4747/4949/5153/54
Sound power levelCool ing/Heating(dB•A)63/6464/6666/6870/71
Outside air temperature, Cooling(°C)43 to –15
Outside air temperature, Heating(°C)15 to –15
Gas side(mm)12.715.915.915.9
Liquid side(mm)6.49.59.59.5
For maintenance of the equipment, be sure to install
a check port A at the position as shown below.
NOTE 2 :
Using the drain up kit sold separately, drain-up by 300 (mm)
from drain pipe draw-out port of the main unit is necessary.
The drain-up over 300mm or more is impossible.