AIR HEAT PUMPS
Daikin FTXG35 Fujitsu ASY-)LB Haier HSU- 09HV03 Hitachi RAK-25NH5 IVT Nordic 12 FR-N Mitsubishi MSZ-FA25VA Panasonic CS-E12EKEB Sanyo SAP-CRV123EHN Ultimate 13 Super Inverter-10GAVPE Toshiba Daisekai RAS
Air heat pumps are sold and installed in accelerating pace for old and new houses. The total sales of the year in Finland is prefigured to be even pieces. The great promises of the market of the great savings in heating expenses are tempting for purchasing one.
Markku Lindell, Juho Huttula Markus Pentikinen (photos) Kai Ryynnen, Petri Kuisma Rovaniemi University of Applied Sciences, Faculty of Technology, measures
Air heat pump has become some kind of magic tool, which reduces the heating expenses just like that abracadabra like magic it works! The threshold to purchase a new appliance is quite low due to the fact that the prices of pumps are low and they are easy to install. If it worked, fulfilled our wishes, paid it back in a couple of years, we could enjoy the half-free warmth. This magic tool has great expectations; myths and beliefs that we wanted to find some answers to. Are the recommended values the manufacturers correct? Are the arguments of the markets true? Is it reasonable to use the air heat pump in very low temperatures? What should be taken into account when purchasing an air heat pump and installing it? Are there differences between different manufacturers? (From Rakennusmaailma magazine 6/2006)
Many customers have been happy with their choices, but also many customers have been disappointed. Business has not always been professional. Independent DIY-men have been tempted to install the appliance themselves. Misjudgements have been made also concerning the size of the pump. Salespeople have not always been responsible enough for the choice of the appliance or the salesperson has had insufficient expertise, unless completely just wanting to sell the product at any price.
A typical air heat pump remote control has the basic functions on the top. Under the flap there are more functions and fine adjustments depending on the appliance.
About the plentiful supply
We invited air heat pumps on our market from the most common size class, which would suit a 150 m house. They should be new so-called inverter models whose functions can be adjusted so that the appliance reduces power output when it reaches the adjusted temperature and also maintains the temperature. Importers of appliances could offer their best model on the market suitable for the purpose. We got 10 air heat pumps which were divided into two groups according to their advertised heating power output: so called 9 and 12 series. The final evaluation does not make any difference between these groups, as there was no consistency in the results in this case. A good 9 series appliance is better than an average 12 series appliance.
The price level of appliances was starting from 795 (Ultimate) at its cheapest and the most expensive was 2500 (IVT, only installed). Usually installation costs circa 600.

COP is everything?

The energy effectivity of air heat pumps is expressed with a COP factor (capacity on power), which expresses how effectively the used electrical energy is transferred to heat energy. If, for instance, COP is 3,2 it means that 1 kW produces 3,2 kW heat. You can get that comprehension of air heat pump energy effectivity that it creates more heat energy than it uses electricity. It is not, however, a perpetual motion machine. Besides the electricity the pump uses, it also uses the open air as endless energy storage. Pump only transfers this heat energy from open air to inside. Based on our measurements we are sure that the COP factors advertised by the manufactures have very little to do with the energy effectivity in practise. The factors advertised by the manufacturers are even if they were measured with a standard should not be a factor used in the savings reached with the pump. Also, the factors should not be based on nullification calculations The good side in this circus is that the manufacturers are using the same standard. The same standard helps us to compare the different models of the same manufacturer and also the models of different manufacturers. It should be noted that the practise is not the same.

When the covers are removed, it is difficult to recognize the interior units from each other. Ingredients and structures are like clones. Even the wall attachment plates suited each others attachment holes.
The exterior unit of the air heat pump opened. It reveals basically the same view that is dominated by the fans winged wheel. The compressor unit is on the side and the steering unit is above.
The technical data of air heat pumps in this evaluation
Daikin Measures Inner unit) Fujitsu Haier Hitachi IVT Nordic Mitsubishi Panasonic CS E12EKEB 799 x 183 x 780 x 289 x R410A 0,97 3,5 (0,6 4) 4,8 (0,6 6,6) 0,92 (0,12 1,18) Sanyo Toshiba Ultimate
835 x 275 x 155 Weight kg 9 Exterior unit 760 x (width x 555 x height x depth 290 Weight kg 32 Refrigerant R410A substance Amount, kg 1 Power input, kW Cooling 1,4 power (min3,8 max) Heating 1,4 power (min 5,8 max) Input power Cooling 1,06 power Heating power 1,135
790 x x x x x x x x 31 R410A R410A 0,95 1,35
826 x x x x 198 9,x x x x R410A R410A 1,15 2,5 (13,1) 3,4 (1,1 4,4) 0,75 (0,2 0,88) 0,87 (0,2 1,12) 3,44 3,16 3,99 3,66 12,3 A 0,9 4,0 0,9 6,0 0,15 1,3 0,15 1,7
780 x 298 x 800 x 550 x R410A 0,9 0,9 3,2 5,0 0,185 0,595 0,880 0,185 1,595 0,880 0,195 0,735 1,3,5 9,9 A 21
825 x 285 x 720 x 550 x R410A 1,1 3,5 4,2
790 x x 250 x 215 x 13,x x 540 x 290 x R410A 0,R410A 1,2 3,7 3,2 5,5
2,60 (0,5- 2,5 (0,6 3,7) 3,6) 3,6 (0,56,1) 3 (0,6 4,8)
Current consumption, A Cooling 4,Heating 5,2
0,62 (0,25 0,454 1,38) (0,12 0,9) 3,6 (0,25 0,525 1,96) (0,12 1,15) 2,3 (0,8 4,3) 2,7 (0,8 5,4
0,3 0,51 0,03 0,3 0,71 0,036
1,26 (0,0115 1,165 1,85) 4,3 5,8 11,2 A 3,81/3,5,21 5,48 8,8 A 4,31 29
Airflow m / 7,9 9,9 11,61 * min max Energy class A A A COP/EER 3,7 / 3,3 4,39/4,19 3,20/3,33 Noise level interior unit dB high medium low *BTU information as the manufacturer advertises
0,15 (2,63 2,41) 0,15 (3,4 3,11) A

4,91 5,35 7,5 A 39

Air heat pumps electricity behind the residual current device
Interior and exterior units are joined together with a connection cable. The electricitys main input (AC 240 V 50 Hz) is brought, depending on the model, to the interior or exterior unit. Power input came to the exterior in Toshiba, Mitsubishi, Hitachi and Daikin, and to interior unit in Haier, Ultimate, Fujitsu, Sanyo, Panasonic and IVT. The Ultimate, Fujitsu and Haier had the input cable with a plug in the interior unit. IVT and Panasonic had the input cable in the interior unit but no plug. Sanyo, Toshiba an, Mitsubishi, Hitachi and Daikin did not have any cables. All models had the power input as a singe-phase, zero and earth cable. Besides the power input also there was a connecting cable needed between the interior and exterior units. Connecting cable was either with 3, 4 or 5 conductor depending on the model. The conductor cut area was min 1,5 mm. Special attention should be paid for power input when installing. In outdoors use in fixed installation the normal MMJ installation cable is enough, but it is recommended that a rubber cable is used which is min. IP44 classified. The installations should follow SFS 5000 standard. All measured models had the electricity cables and refrigerant substances pipes on the same side of the exterior unit; so extra attention should be paid on the safety especially when installing the pump. A registered mounter can install the pump regarding the electricity and cooling installations. The installation of the air heat pump is problematic especially in older houses, which have no protective earth plug box indoors. Interior unit can be connected to the plug box of class zero but it is desirable that the plug box planned for the pump is nullified from the closest distribution box. This would certain the protective earth for both units. Houses, which have earth protected plug box, have no such problems. Those air heat pumps, which have the power input to their exterior unit, the air heat pump is installed to the nearest plug box. The modern house plug boxes are also equipped with residual current device so the installation is safe. If you need an extra plug box for the air heat pump, it should be equipped with a residual current device or a separate plug box should be outside the reach above it and it should have a warning sign to limit its use. Air heat pumps should always be equipped with a residual current device

The installation of refrigerant substance and pipes
Generally speaking the sizes of air heat pump pipes are similar. Panasonic and IVT had bigger pipes in the gas side and Ultimate had a different installation manner. The size of the pipe is depending on the power of the appliance, size was on the liquid side 3/8 and IVTs and Panasonics gas side. The tested appliances were delivered without ready pipes except in Ultimate, which had a prevacuumed pipe. It is satisfactory for moth installations in a house where there will not be many piping. Other appliances had only couplings with flange connection and pipes with flange connection in interior units. They reach the outside of normal houses wall structures.
Because of flange connections the welded connection are not needed but at the same time there can be four possible leakage points. Ultimate has pipes with fast couplings, which can be joined to the exterior unit and removed quite easily. Instructions were deficient. Extras power was not needed. Removing the exterior unit should be made cautiously because the cover flies away when the spring goes off.

couplings.

Typically the exterior units side has the electricity and refrigerant substance

Low temperatures

Manufacturers prefer to advertise only energy effectivity which is based only on one temperatures COP: usually for example 7 degrees Celsius, which is according to the standard 14511 and is very favourable for the factor. Deviating from our measures and evaluations we take the Finnish climate into account the temperatures vary significantly. We considered it important making a difference between so-called normal use + 7 to t and cold weather use from 7 to 20 degrees. Unlike it was expected, according to our measures it seems that pump is worth its use yet in 15 degrees below zero and many appliances can be used even in 20 degrees. Even though the COP factors do not reach any other levels than those announced by the manufacturers, the results are positive. In principle it is worth letting the pump play as long as the factor is greater than 1. Saving is collected all the time even if they were lower than promised.

Greatest benefit

Nobody should believe a salesperson that claims that the pump will reduce half from the electricity bill! If the houses heating economy is in order, the heating costs are already small; any extra savings cannot be expected. The reached saving is focused only and only on the energy costs of buildings heating. The greatest benefit from the pump is gained in a house warmed with electricity and where heating economy is weaker. The pump can effect only on the part of the electricity bill of heating, on that part where already water heating, lightning and other household use of electricity have been removed. Also it must be remembered that the pump uses electricity itself, which has a remarkable value in the savings. The pump is a great benefit especially in summer when its used for cooling. This benefit is however, experienced which increases the consumption of electricity. As our objective was to clear out the economical benefits, we excluded the cooling characteristics from the evaluation.

Are the differences between pumps?
One of our main objectives was to clear out the differences between pumps and to put them in correct order. The best COP factor was 3,30 and the weakest was 2,15 in 7 degrees above zero. Also there were differences between our measurements and the values announced by the manufacturers. In out test method the pumps were used to their full potential, they were used for a week with maximum power. All pumps functioned during our evaluation and there were no faults. We would not predict the reliability of pumps or their lifetime. In principle a cheap and reliably working appliance pays itself back faster then the more expensive. We continue to focus on the differences that in practise the COP factor marginal differences are smoothened to the savings or losses caused by the place, places suitability, the placement and finally the way it is used.

Then what?

The interior unit of air heat pump filters inside air. The purpose of the typical plastic coarse and paper fine filter is to prevent trash from getting in to the interior units battery. Some of the appliances have also an electrical filter and/or an electrical air freshener.
The use of pumps for heating is still on a pioneer level, even though its success has grown remarkably. Air heat pump technique is familiar and it has been long in the production but in principle they are just cooling appliances and the heating use of cooling appliances especially in cold climates is still in baby shoes. New models come up to the market all the time and therefore the model purchased a year ago is already an old model.
The discussion about air heat pumps is also hot and it can be compared to tuning your car or getting more power to your computer. The air heat pump is a saving appliance and if you use it, it brings you savings. Savings are not just so high as it has been promised. After returning to the back to earth we recommend purchasing an air heat pump for everyone who think it is a suitable extra heating source. This is the case especially with those people who have electrical heating. Air heat pumps are developing continuously. It is not worth postponing the purchase to a new generation model. Without the air heat pump the only way to get savings is the traditional way.

Electricity is saved

This table includes the electricity saving potential for all pumps. A house (150 mheated with electricity, consumption of energy is kWh per year.
Electricity used by air heat pump per year 0 degrees kWh Heating energy produced by air heat pump per year 0 degrees kWh 20048 Total energy, energy consumption + pumps intake energy kWh Saving potential kWh 11768 8168

Daikin Fujitsu Haier Hitachi IVT Mitsubishi Panasonic Sanyo Toshiba Ultimate
The starting point is a house which is heated with electricity and it consumes kWh per year. If the temperature goes to zero but not below that (we used the mean temperatures of Helsinki) - the air heat pump could save even kWh from a kWh total consumption. This is where the appliances differ from each other. Because this table is only calculative, its results cannot be used and has not been used in this evaluation. The base of our calculations is however in the measurements of the evaluation. We would like to mention that this is only an example of extreme weather conditions (0 outdoors, pump request 20 degrees and its airflow to the maximum) and nobody should believe that his huge energy savings could be reached. If the temperature outdoors is over +7 degrees, there is no need to heat and when we have lower temperatures, the effectivity decreases quickly. And, after all, nobody needs +30 degrees inside continuously. The colder the weather gets, the less differences there seem to be between the appliances. It seems that the savings are depending mainly on the pumps input power. According to this theory, those pumps that have a low input power and a high COP, make greater savings but also those with a low input power and low COP, there are more savings than with those with high input power and high COP factor. In principle the over measuring of an air heat pump is not benefiting anybody; on the contrary a slight under sizing could make more savings.

This is how we evaluated

Energy effectivity is divided in two parts; the more importance has been given to the effectivity of the pump in higher temperatures, because more advantages are gained. We did not want to pass the effects in low temperatures because they tell about the suitability to Nordic circumstances. Because we have temperatures below minus 15 only rarely, and more rarely in the future, the importance of the value is smaller. The consumption of electricity of the appliance has a great effect on the how much heating electricity is saved. It is a central cause for purchasing an air heat pump. Regarding the points we used the daily average on a scale +7 -7 degrees. The consumption of appliances electricity increases because they have been used to the full potential all the time. This is not a normal condition. The airflow efficiency effects remarkably on the level of appliances energy effectivity. The more cubes per hour, the better. The noise was measured from 3 distances, 1 metre, 3 metres and 5 metres but we counted only 3 metres to the evaluation as an average of 10 measures. The results measure from one metre did not have any meaning and other noises disturbed measuring in 5 metres. Changing the values of points the desired characteristics can be highlighted.

Energy effectivity

The maximum momentary heating power

Measurement results

Intake power +7. -7 average kW/24 h 27,88 41,03 33,44 26,53 30,49 26,69 27,9 35,02 29,81 42,56 Airflow efficiency m/ h Noise dB (A) m 42,49 43,96 42,40 41,69 48,00 42,78 35,89 42,67 45,10 38,83

Grades

Grades Value % 40 Daikin 7 8,8 Fujitsu 7 6,7 Haier 7 8,2 Hitachi 8 7,0 IVT 6 7,0 Mitsubishi 7 7,9 Panasonic 9 7,5 Sanyo 7 7,8 Toshiba 7 7,6 Ultimate 8 8,2
Energy effectivity A 30 Energy effectivity B 20 Consumption of electricity 5 Airflow effectivity 5 Noise General grade 100 A. Temperature +7/0/-7 B.Temperature -7/-15/-20

FINAL EVALUATIONS

Marketing: Oy Lining Ab Price: 1900 incl. VAT Guarantee: 3 years appliance guarantee Daikin makes a difference from others with energy effectivity and low consumption of energy. Also its heating effectivity is on a good level in all measured temperatures. According to the test, even in -20 degrees it still produces more than consumes. The airflow effectivity is not the best; Daikin has the best prerequisites to save. A moderate noise level. The remote control is clear and it includes the basic functions, start and heat adjustments, under the flap there are other functions of timing, controlling, and fine adjustment such as comfortability and attenuation. The interior unit has two coarse and two fine filters. When installing Daikin the main input of electricity comes to the exterior unit. The delivery does not include cooling pipes or input cables of electrical installation. After a power cut the Daikin returns to function. The highest COP value measured at +7 degrees 2,96. The lowest COP value measured at -20 1,79. Pros: - energy effectivity in normal conditions - energy effectivity in cold - small consumption of electricity Cons: - none General grade: 8,8 *****

DAIKIN FTXG35C

Marketing: Price: Guarantee: 1 year total guarantee, compressor 3 years Ultimate is successful in energy effectivity and it works creditably in cold climates. It was only one tenth away from four stars, which it had deserved if airflow efficiency would have been as good as its other performances. In noise measuring it was the second most silent. The remote control of Ultimate has the basic functions on the top including the swing function of the air direction. Under the flap there are also moist removal, sleep, cleaning, timing and air functions. Cables needed in electrical adjustments and pre-filled cooling pipes have to be purchased separately. The endurance of fast couplings may be risky. Ultimate has two plastic coarse filters and two plastic fine filters. The appliance starts after a power cut. The highest COP value measured at +7 degrees 2,45. The lowest COP value measured at -20 1,38. Pros: Cons: -
ULTIMATE SUPER INVERTER 13
energy effectivity in cold climates energy effectivity in normal conditions low noise level airflow efficiency

General grade: 8,2 ***

Mitsubishi MUZFA25VAH Marketing:Paavo Kataikko Ltd Price: 1410 incl. VAT Guarantee: 2 years full guarantee, 5 years for compressor Haier stays also one tenth Mitsubishi is good in the from four stars. Its energy valuable points of the effectivity is creditable in evaluation and it works well low temperatures but in in all areas. At the lowest normal conditions it is only temperature (-20) the energy adequate. Consumption of effectivity approaches the electricity is in the right limit of profitability. There direction but airflow could be more airflow efficiency could be better. efficiency and the noise is The noise level is moderate. within acceptable limits. The remote control has Mitsubishis remote control basic functions on top and has the basic functions on under the flap there are for top. Under the flap there is example adjustments of fan the menu for functions, fan and heating. In electricity adjustments and direction, installation the main input economic cooling, timer and comes to the interior unit, air filtering plasma function. cable and plug are included. The interior unit has a There are two plastic coarse hinged lid. filters and fine filters In electricity installation the The highest COP value main input comes to the measured at + 7 degrees: exterior unit, electricity 2,78. The lowest COP value cables and cooling pipes are measures at 20 degrees: not included. 1,68There are two plastic coarse filters and two papery fine filters. There is also a hoover nozzle for cleaning. Mitsubishi starts normally after a power cut. The highest COP value measured at + 7 degrees: 2,88. The lowest COP value measures at 20 degrees: 1,28.
Haier HSU09HVO3/R2/SDB Marketing:Pemco Ltd Price:1990 incl.VAT Guarantee: one year, 3 years for compressor
Sanyo SAP-CRV123EHN Marketing:Ahlsell Ltd Price: 1500 incl. VAT Guarantee: 2 years full guarantee Sanyos energy effectivity is good in normal conditions but in low temperatures (15) its profitability decreases remarkably. Sanyos airflow efficiency is in line even though it could be more effective. The noise level is on an acceptable level, whereas the consumption of electricity could be lower. Sanyos remote control has start, temperature adjustment, silent run choice and one hour speed timing on top. Under the flap there are fan and timer adjustments as well as night and day full power adjustments. The remote control has also a heat detector. In electricity installation the main input comes to the interior unit. Cables are not included. There are two plastic coarse filters and fine paper filters. Sanyo starts after a power cut.

Toshiba Daisekai Marketing:Carrier Ltd Price: 1143 VAT 0% Guarantee: 2 years full guarantee
Toshiba reaches a good level with energy effectivity both in normal and cold conditions. Energy economy could be better, but it is replaced with the second best airflow efficiency. Toshibas noise is in an acceptable level. remote control has the basic functions on top such as memory and air cleaning functions. Under the flat you can use for example the menu, adjustments of fan, cost efficiency and power functions and timer. When installing Toshibas electricity the main input comes to the exterior unit. Cables and cooling pipes are not included. The interior unit has two plastic coarse filters and one fine paper filter. Also there is one electrical air filter. Toshiba does not start automatically after a power cut but it needs to be started manually. The highest COP value measured at + 7 degrees: The highest COP value 2,46. The lowest COP value measured at + 7 degrees: measures at 20 degrees: 2,86. The lowest COP value 1,61. measures at 20 degrees: 1,25. Pros: Cons: -
Pros: - the most silent version - the best airflow efficiency Cons: airflow efficiency

Pros: Cons: -

energy effectivity in normal conditions airflow efficiency
evenly good energy effectivity consumption of energy
energy effectivity handy remote control

General grade: 8,2

General grade: 7,0
the biggest consumption of energy General grade: 6,7

Panasonic CU E12EKEB

Marketing: Kauko-Telko Ltd Price: 1495 incl. ALV Guarantee: 1 year,

Hitachi RAK 25NH5

Marketing: Tempcold Ltd Price: 1400 VAT 0% Guarantee: 2 years appliance guarantee
Marketing: IVT Lmppumput Ltd Price: 2600 incl. VAT+ installation Guarantee: 5 years
IVT Nordic Inverter 12 FR-N

Fujitsu ASY 9 LB

Marketing: FG Finland Ltd Price: 1500 incl. VAT + installation Guarantee: 2 years from purchase date. If the customer orders a service during this time, the guarantee is 5 years. Fujitsus energy effectivity is satisfactory in normal conditions but it fulfils its tasks better in low temperatures. The greatest consumption of energy cuts the points down really badly and a regular airflow efficiency and acceptable noise level do not improve the position. Fujitsus clear and small remote control has all functions on top: functions menu, fan adjustments, timing, sleep, mute functions and also drying, Fujitsu has two coarse and two fine plastic filters. Power input comes to the interior unit; an installation cable and plug are included. Cooling pipes are not included. The highest COP value measured at + 7 degrees: 2,16. The lowest COP value measures at 20 degrees: 1,44.

Panasonics energy effectivity is only satisfactory in normal conditions but it is quite persistent in even 15 degrees. It clots in 20 degrees. Panasonics best airflow efficiency and low consumption of energy improves its position substantially. Also its noise level is the lowest of the group. The remote control has all functions; power choice, fan adjustments, timer, ion function on the top and therefore it seems quite disordered. When installing Panasonic the electricity feeding comes to the interior unit and the cable is included in the delivery but the plug is missing, also cooling pipes are not included. In air filtering there are two plastic coarse filters, one fine filter and dust removal. Panasonic recovers normally after a power cut. The highest COP value measured at + 7 degrees: 2,34. The lowest COP value measures at 20 degrees: 0,79 Pros: - the most silent version - the best airflow efficiency Cons: energy effectivity in cold
Hitachi fulfils its task in normal conditions. It even reached the best single energy effectivity at + 7 degrees but when air is getting cooler, its effectivity also collapses. Hitachis energy consumption is low in normal use but it does not replace the fading in low temperatures. A good airflow and low noise level fix the point count. Hitachis remote control has the basic functions on top. Under the flap there is the menu for functions, fan adjustments and timing. There are two plastic coarse and fine filters. In installation the main input of electricity is connected to the exterior unit. Electricity cable or cooling pipes are not included in the delivery. Hitachi starts after a power cut. The highest COP value measured at + 7 degrees: 3,30. The lowest COP value measures at 20 degrees: 0,47.
IVT reaches a satisfactory level in energy effectivity in normal conditions but it gives its best in cold climates. The production is even. Its consumption of energy is below the average in the whole scale. The lowest airflow efficiency of the evaluation and noisiness cut the points. Remote control has the basic functions on top. Under the flap there are for example functions menu, fan adjustments, timer, clean and ion functions. There are two plastic coarse filters and fine paper filters. When installing IVT the electricitys main input comes to the interior unit. Coupling cable is included but the plug is not. Cooling pipes are not included. IVT starts after a power cut. The highest COP value measured at + 7 degrees: 2,15. The lowest COP value measures at 20 degrees: 1,43.

energy effectivity in low climate does not suit northern conditions very well
energy effectivity in cold airflow efficiency noisy

General grade: 7,5

the greatest consumption of energy General grade: 6,7

Unit Performance Test Condition Cooling Capacity kW kcal/h CS-E9EKEB EUROVENT 2.60 (0.60 - 3.00) 2,240 (520 - 2,580) CU-E9EKEB

Heating Capacity

kW kcal/h
3.60 (0.60 - 5.40) 3,100 (520 - 4,640)

Moisture Removal

l/h Pint/h

1.6 3.4

Power Source (Phase, Voltage, Cycle)

Single 230 50

Airflow Method

OUTLET

SIDE VIEW

TOP VIEW

INTAKE

Air Volume

Lo Me Hi SHi
m3/min (cfm) m3/min (cfm) m3/min (cfm) m3/min (cfm)
Cooling; 6.2 (220) Heating; 6.6 (230) Cooling; 7.9 (280) Heating; 8.6 (300) Cooling; 9.6 (340) Heating; 10.5 (370) Cooling; 9.9 (350) Heating; 10.8 (380) Cooling; High 39, Low 26 Heating; High 40, Low 27

Cooling; 29.8 (1,050)

dB (A) Noise Level Power level dB

Cooling; 46 Heating; 47

Cooling; High 50 Heating; High 51
Cooling; High 59 Heating; High 60

Electrical Data

Cooling; 590 (120 - 750) Heating; 845 (115 - 1,360)

Running Current

Cooling; 2.9 Heating; 4.0 Cooling; 4.41 (3.80) Heating; 4.26 (3.67) 4.0 G ; Half Union 3/8 G ; 3-way valve 3/8 L ; Half Union 1/4 L ; 2-way valve 1/4 G (gas side) ; 3/8 G (gas side) ; 3/8 L (liquid side) ; 1/4 L (liquid side) ; 1/0.65
EER COP Starting Current Piping Connection Port (Flare piping) Pipe Size (Flare piping) Drain Inner diameter Hose Length
W/W (kcal/hw) W/W (kcal/hw) A inch inch inch inch mm m
Power Cord Length Number of core-wire Dimensions Height Width Depth Net Weight Compressor Motor Rated Fan Motor Motor
Unit m inch (mm) inch (mm) inch (mm) lb (kg) Type Type Output Type Material Type Input Rate Output Lo (Cool/Heat) Me (Cool/Heat) Hi (Cool/Heat) SHi (Cool/Heat)

Fan Speed

W W rpm rpm rpm rpm

Heat Exchanger

Description Tube material Fin material Fin Type Row / Stage FPI Size (W H L)
Refrigerant Control Device Refrigeration Oil Refrigerant (R410A) Thermostat Protection Device Air Filter

(cm3) g (oz)

Material Style
CS-E9EKEB CU-E9EKEB 1.8 (1.5mm2) 11 - 1/32 (280) 21 - 1/4 (540) 31 - 15/32 (799) 30 - 23/32 (780) 7 - 7/32 (183) 11 - 3/8 (289) 20 (9.0) 77 (35) Hermetic Motor Brushless (4-pole) 750 Cross-flow Fan Propeller Fan ASG20k1 P.P Transistor (8-poles) Induction (8-poles) 44.3 61.40 820/880 1,050/1,140 1,280/1,400 800/790 1,320/1,440 Evaporator Condenser Copper Copper Aluminium (Pre Coat) Aluminium Slit Fin Corrugated Fin (Plate fin configuration, forced draft) 2 / / 315 25.4 718.36.4 689.8 Capillary Tube RB68A (400) 930 (32.8) Electronic Control Electronic Control P.P. Honeycomb
Specifications are subjected to change without prior notice for further improvement.

CS-E12EKEB CU-E12EKEB

Unit CS-E12EKEB EUROVENT kW kcal/h 3.50 (0.60 - 4.00) 3,010 (520 - 3,440) CU-E12EKEB
Performance Test Condition Cooling Capacity
4.80 (0.60 - 6.60) 4,130 (520 - 5,680)

2.0 4.2

Cooling; 6.9 (240) Heating; 8.1 (290) Cooling; 8.8 (310) Heating; 9.7 (340) Cooling; 10.7 (380) Heating; 11.2 (400) Cooling; 11.0 (390) Heating; 11.6 (410) Cooling; High 42, Low 29 Heating; High 42, Low 33

Cooling; 31.0 (1,090)

Cooling; 48 Heating; 50
Cooling; High 53 Heating; High 53
Cooling; High 61 Heating; High 63
Cooling; 920 (120 - 1,180) Heating; 1,260 (115 - 1,850)
Cooling; 4.3 Heating; 5.8 Cooling; 3.80 (3.27) Heating; 3.81 (3.28) 5.8 G ; Half Union 1/2 G ; 3-way valve 1/2 L ; Half Union 1/4 L ; 2-way valve 1/4 G (gas side) ; 1/2 G (gas side) ; 1/2 L (liquid side) ; 1/4 L (liquid side) ; 1/0.65 1.8 (1.5mm2)
EER COP Starting Current Piping Connection Port (Flare piping) Pipe Size (Flare piping) Drain Inner diameter Hose Length Power Cord Length Number of core-wire

Dimensions

Height Width Depth Type Type Output Type Material Type Input Rate Output Lo (Cool/Heat) Me (Cool/Heat) Hi (Cool/Heat) SHi (Cool/Heat)
Net Weight Compressor Motor Rated Fan Motor Motor
Unit inch (mm) inch (mm) inch (mm) lb (kg)
Refrigerant Control Device Refrigeration Oil Refrigerant (R410A) Thermostat Protection Device Air Filter Material Style
CS-E12EKEB CU-E12EKEB 11 - 1/32 (280) 21 - 1/4 (540) 31 - 15/32 (799) 30 - 23/32 (780) 7 - 7/32 (183) 11 - 3/8 (289) 20 (9.0) 79 (36) Hermetic Motor Brushless (4-pole) 750 Cross-flow Fan Propeller Fan ASG20k1 P.P Transistor (8-poles) Induction (8-poles) 44.3 65.40 910/1,080 1,165/1,290 1,420/1,/ 820 1,460/1,540 Evaporator Condenser Copper Copper Aluminium (Pre Coat) Aluminium Slit Fin Corrugated Fin (Plate fin configuration, forced draft) 2 / / 315 25.4 718.36.4 689.8 Capillary Tube RB68A (400) 970 (34.2) Electronic Control Electronic Control P.P. Honeycomb

3 Features

3.1.1.
Super Air Purifying System with SUPER alleru-buster
Supersonic Air Purifying System

Ion Freshener

Around 20,000 negative ions/cc are generated to freshen the room. Its like being next to a waterfall or in a forest.
The Supersonic Air Purifying System incorporated in the indoor unit generates supersonic waves. The system works in combination with the filter to collects dust and dirt in the air for faster, more efficient air purification.

Super Quiet

The indoor unit operates at a whisper-quiet 26dB. You can also press the Quiet Mode button to lower the operating noise 3 dB. Weve reduced the noise of the outdoor unit, too, with the e-scroll Compressor and 2-Wing Fan. You can run the air conditioner at night and enjoy a deeper, more comfortable sleep, and without bothering your neighbours.

3.1.2.

SUPER alleru-buster filter
The SUPER alleru-buster filter combines three effects in one anti-allergen, anti-virus, anti-bacteria protection to keep room air clean and healthful.
Powerful Heating And Topclass Energy Effciency
4 Location of controls and components

4.1. Indoor Unit

Outdoor Unit

Remote Control

5 Dimension
5.1. Indoor Unit & Remote Control
6 Refrigeration Cycle Diagram

7 Block Diagram

8 Wiring Diagram
8.1. CS-C9EKEB CS-C12EKEB

CU-C9EKEB CU-C12EKEB

9 Printed Circuit Board

9.1. Indoor Unit

10 Simplified Electronic Circuit Diagram

10.1. Indoor Unit

10.2. Outdoor Unit
11 Installation Instructions
11.1. Select The Best Location
INDOOR UNIT There should not be any heat source or steam near the unit. There should not be any obstacles blocking the air circulation. A place where air circulation in the room is good. A place where drainage can be easily done. A place where consideration. noise prevention is taken into Indoor/Outdoor Unit Installation Diagram
Do not install the unit near the door way. Ensure the spaces indicated by arrows from the wall, ceiling, fence or other obstacles. Recommended installation height for indoor unit shall be at least 2.5 m. OUTDOOR UNIT If an awning is built over the unit to prevent direct sunlight or rain, be careful that heat radiation from the condenser is not obstructed. There should not be any animal or plant which could be affected by hot air discharged. Keep the spaces indicated by arrows from wall, ceiling, fence or other obstacles. Do not place any obstacles which may cause a short circuit of the discharged air. If piping length is over the rated length, additional refrigerant should be added as shown in the table.

Model Piping size Rated Max. Gas Liquid Length Elevation (m) (m) 3/8 1/2 1/4 1/4 7.5 7.5 Max. Piping Length (m) Additional Refrigerant (g/m) 20 20

E9EK E12EK

This illustration is for explanation purposes only. The indoor unit will actually face a different way.

11.2. Indoor Unit

11.2.1. HOW TO FIX INSTALLATION PLATE
The mounting wall is strong and solid enough to prevent it from the vibration.
11.2.2. TO DRILL A HOLE IN THE WALL AND INSTALL A SLEEVE OF PIPING
1. Insert the piping sleeve to the hole. 2. Fix the bushing to the sleeve. 3. Cut the sleeve until it extrudes about 15 mm from the wall. Caution
When the wall is hollow, please be sure to use the sleeve for tube assy to prevent dangers caused by mice biting the connecting cable.
4. Finish by sealing the sleeve with putty or caulking compound at the final stage.
The centre of installation plate should be at more than 450 mm at right and left of the wall. The distance from installation plate edge to ceiling should more than 67 mm. From installation plate left edge to units left side is 74 mm. From installation plate right edge to units right is 94 mm.
: For left side piping, piping connection for liquid should be about 15 mm from this line. : For left side piping, piping connection for gas should be about 45 mm from this line. : For left side piping, piping connection cable should be about 800 mm from this line.
1. Mount the installation plate on the wall with 5 screws or more. (If mounting the unit on the concrete wall consider using anchor bolts.) Always mount the installation plate horizontally by aligning the marking-off line with the thread and using a level gauge. 2. Drill the piping plate hole with 70 mm hole-core drill. Line according to the left and right side of the installation plate. The meeting point of the extended line is the centre of the hole. Another method is by putting measuring tape at position as shown in the diagram above. The hole centre is obtained by measuring the distance namely 150 mm and 125 mm for left and right hole respectively. Drill the piping hole at either the right or the left and the hole should be slightly slanted to the outdoor side.
11.2.3. INDOOR UNIT INSTALLATION
1. For the right rear piping
2. For the right and right bottom piping
3. For the embedded piping
(This can be used for left rear piping & left bottom piping also.)
11.2.4. CONNECT THE CABLE TO THE INDOOR UNIT
1. The inside and outside connecting cable can be connected without removing the front grille. 2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4 1.5 mm2 flexible cord, type designation 245 IEC 57 or heavier cord. Ensure the color of wires of outdoor unit and the terminal Nos. are the same to the indoors respectively. Earth lead wire shall be longer than the other lead wires as shown in the figure for the electrical safety in case of the slipping out of the cord from the anchorage.

Secure the cable onto the control board with the holder (clamper).
11.2.5. INSTALLATION OF SUPER ALLERU-BUSTER FILTER
1. Open the front panel. 2. Remove the air filter. 3. Remove Supersonic air purifying device. 4. Open the Supersonic air purifying device frame. 5. Insert the super alleru-buster filter and close the Supersonic air purifying device frame as show in illustration at right.
11.2.6. HOW TO TAKE OUT FRONT GRILLE
Please follow the steps below to take out front grille if necessary such as when servicing. 1. Set the vertical airflow direction louvers to the horizontal position. 2. Slide down the 2 caps on the front grille as shown in the illustration below, and then remove the 2 mounting screws. 3. Pull the lower section of the front grille towards you to remove the front grille.
When reinstalling the front grille, first set the vertical airflow direction louvers to the horizontal position and then carry out above steps 2 - 3 in the reverse order.

11.3. Outdoor Unit

11.3.1. INSTALL THE OUTDOOR UNIT
After selecting the best location, start installation according to Indoor/Outdoor Unit Installation Diagram. 1. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (10 mm). 2. When installing at roof, please consider strong wind and earthquake. Please fasten the installation stand firmly with bolt or nails.
11.3.2. CONNECTING THE PIPING
Connecting The Piping To Indoor Unit Please make flare after inserting flare nut (locate at joint portion of tube assembly) onto the copper pipe. (In case of using long piping) Connect the piping Align the center of piping and sufficiently tighten the flare nut with fingers. Further tighten the flare nut with torque wrench in specified torque as stated in the table.
MODEL E9EK E12EK Piping size (Torque) Gas Liquid 3/8 (42 N.m) 1/4 (18 N.m) 1/2 (55 N.m) 1/4 (18 N.m)
Connecting The Piping To Outdoor Unit Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the flare nut (located at valve) onto the copper pipe. Align center of piping to valves and then tighten with torque wrench to the specified torque as stated in the table. CUTTING AND FLARING THE PIPING 1. Please cut using pipe cutter and then remove the burrs. 2. Remove the burrs by using reamer. If burrs is not removed, gas leakage may be caused. Turn the piping end down to avoid the metal powder entering the pipe. 3. Please make flare after inserting the flare nut onto the copper pipes.
11.3.3. EVACUATION OF THE EQUIPMENT
WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedure.
1. Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way valve. Be sure to connect the end of the charging hose with the push pin to the service port. 2. Connect the center hose of the charging set to a vacuum pump with check valve, or vacuum pump and vacuum pump adaptor. 3. Turn on the power switch of the vacuum pump and make sure that the needle in the gauge moves from 0 cmHg (0 MPa) to -76 cmHg (-0.1 MPa). Then evacuate the air approximately ten minutes. 4. Close the Low side valve of the charging set and turn off the vacuum pump. Make sure that the needle in the gauge does not move after approximately five minutes. Note: BE SURE TO FOLLOW THIS PROCEDURE IN ORDER TO AVOID REFRIGERANT GAS LEAKAGE. 5. Disconnect the charging hose from the vacuum pump and from the service port of the 3-way valve. 6. Tighten the service port caps of the 3-way valve at a torque of 18 N.m with a torque wrench. 7. Remove the valve caps of both of the 2-way valve and 3-way valve. Position both of the valves to OPEN using a hexagonal wrench (4 mm). 8. Mount valve caps onto the 2-way valve and the 3-way valve. Be sure to check for gas leakage. CAUTION

12.1.1. Internal Setting Temperature
Once the operation starts, remote control setting temperature will be taken as base value for temperature shifting processes. These shifting processes are depending on the air conditioner settings and the operation environment. The final shifted value will be used as internal setting temperature and it is updated continuously whenever the electrical power is supplied to the unit.
12.1.2. Airflow Direction
1. There are two types of airflow, vertical airflow (directed by horizontal vane) and horizontal airflow (directed by vertical vanes). 2. Control of airflow direction can be automatic (angles of direction is determined by operation mode, heat exchanger temperature and intake air temperature) and manual (angles of direction can be adjusted using remote control).
12.1.2.1. Vertical Airflow
Operation Mode Heating Airflow Direction 1 Auto with Heat Exchanger Temperature A B C D Upward fix Downward fix Upward fix Downward fix 8 Vane Angle () 8 ~ 5
Cooling, Soft Dry and Ion Mode Judgment in Auto
Manual Auto Manual Auto Manual
1. Automatic vertical airflow direction can be set using remote control; the vane swings up and down within the angles as stated above. For heating mode operation, the angle of the vane depends on the indoor heat exchanger temperature as Figure 1 below. When the air conditioner is stopped using remote control, the vane will shift to close position. 2. Manual vertical airflow direction can be set using remote control; the angles of the vane are as stated above and the positions of the vane are as Figure 2 below. When the air conditioner is stopped using remote control, the vane will shift to close position.
12.1.2.2. Horizontal Airflow
1. Automatic horizontal airflow direction can be set using remote control; the vane swings left and right within the angles as stated below. For heating mode operation, the angle of the vane depends on the indoor heat exchanger temperature as Figure 1 below.
Operation Mode Heating, with heat exchanger temperature Cooling, Soft Dry and Ion A B Vane Angle () 65 ~ 65 ~ 115
2. Manual horizontal airflow direction can be set using remote control; the angles of the vane are as stated below and the positions of the vane are as Figure 2 above.

Pattern Airflow Direction Patterns at Remote Control Vane Angle () 5
12.1.3. Quiet operation (Cooling Mode/Cooling area of Dry Mode)
A. Purpose To provide quiet cooling operation compare to normal operation. B. Control condition a. Quiet operation start condition When quiet button at remote control is pressed. Quiet LED illuminates. b. Quiet operation stop condition 1. When one of the following conditions is satisfied, quiet operation stops: a. Powerful button is pressed. b. Stop by OFF/ON switch. c. Timer off activates. d. Quiet button is pressed again. 31
2. When quiet operation is stopped, operation is shifted to normal operation with previous setting. 3. When fan speed is changed, quiet operation is shifted to quiet operation of the new fan speed. 4. When operation mode is changed, quiet operation is shifted to quiet operation of the new mode. 5. During quiet operation, if timer on activates, quiet operation maintains. 6. After off, when on back, quiet operation is not memorised. C. Control contents 1. Fan speed is changed from normal setting to quiet setting of respective fan speed. This is to reduce sound of Hi, Me, Lo for 3dB. 2. Fan speed for quiet operation is -1 step from setting fan speed.
12.1.3.1. Quiet operation (Heating)
A. Purpose To provide quiet heating operation compare to normal operation. B. Control condition a. Quiet operation start condition When quiet button at remote control is pressed. Quiet LED illuminates. b. Quiet operation stop condition 1. When one of the following conditions is satisfied, quiet operation stops: a. Powerful button is pressed. b. Stop by OFF/ON switch. c. Timer off activates. d. Quiet button is pressed again. 2. When quiet operation is stopped, operation is shifted to normal operation with previous setting. 3. When fan speed is changed, quiet operation is shifted to quiet operation of the new fan speed. 4. When operation mode is changed, quiet operation is shifted to quiet operation of the new mode, except fan only mode. 5. During quiet operation, if timer on activates, quiet operation maintains. 6. After off, when on back, quiet operation is not memorised. C. Control contents a. Fan Speed manual 1. Fan speed is changed from normal setting to quiet setting of respective fan speed. This is to reduce sound of Hi, Me, Lo for 3dB. 2. Fan speed for quiet operation is -1 step from setting fan speed. 3. Fan Speed Auto Indoor FM RPM depends on pipe temp sensor of indoor heat exchanger.

12.2.7. Compressor Protection Control (Refrigeration Cycle Abnormality)
In cooling and Dry operations 1. When compressor is operated continuously for 5 minutes in the maximum cooling power: a running current of 0.7 - 1.4A and [Indoor intake air temperature] - [Indoor heat exchanger temperature] < 4C, compressor will be stopped. 2. If the above excess occurs twice for 20 minutes, timer LED is to be blinking. (F91 is to be confirmed.) In Heating operation 1. When compressor is operated continuously for 5 minutes in the rated heating power: a running current of 0.7 - 1.4A and [Indoor heat exchanger temperature] - [Indoor intake air temperature] < 5C, compressor will be stopped. 2. If the above excess occurs twice for 20 minutes, timer LED is to be blinking. (F91 is to be confirmed.)
12.2.8. Four-way Valve Operation Detection Control (Switching Abnormality between Cooling and Heating)
In Cooling operation 1. When indoor heat exchanger temperature exceeds 45C in 4 minutes after compressor starts, compressor will be stopped. 2. If the above excess occurs 4 times per 30 minutes, timer LED is to be blinking. (F11 is to be confirmed.) In Heating operation 1. When indoor heat exchanger temperature is below 0C in 4 minutes after compressor starts, compressor will be stopped. 2. If the above excess occurs 4 times per 30 minutes, timer LED is to be blinking. (F11 is to be confirmed.)
12.2.9. Anti-Freezing Control (Cooling and Dry operations)
Limit of Cooling power 1. When temperature of indoor heat exchanger is below 5C, operating frequency will be decreased. 2. When temperature of indoor heat exchanger exceeds 7C, operating frequency will be increased. (But, up to programmed frequency.) 3. When temperature of indoor heat exchanger is below 0C continuously for 6 minutes, compressor will be stopped. 4. Timer LED is not blinking. (F99 is memorized, then.) Limit of Indoor fan speed When temperature of indoor heat exchanger is below 6C (2C at Dry) continuously for 6 minutes, indoor fan speed will be increased by 50 rpm.
12.2.10. Outdoor Air Temperature Control
In Cooling and Dry operations 1. When outdoor air temperature is below 25C, the maximum power will be limited up to about 80 - 100% of the rated power. 2. When outdoor air temperature is below 18C, the maximum power will be limited up to about 50 - 100% of the rated power. 3. When outdoor air temperature is below 11C, the maximum power will be limited up to about 26 - 81% of the rated power.

12.2.11. Indoor Intake Air Temperature Control (Heating operation)
1. When indoor air temperature is 35C or more, the maximum power will be limited up to the rated power. 2. When fan speed is set at Lo and intake air temperature is below 21C, the maximum power will be limited up to the rated power.

13 Servicing Mode

13.1. Auto Switch Operation
The below operations will be performed by pressing the AUTO switch. 1. AUTO OPERATION MODE The Auto operation will be activated immediately once the Auto Switch is pressed. 2. TEST RUN OPERATION (FOR PUMP DOWN/SERVICING PURPOSE) The Test Run operation will be activated if the Auto Switch is pressed continuously for more than 5 sec. A beep sound will occur at the fifth sec., in order to identify the starting of Test Run operation. 3. REMOTE CONTROLLER RECEIVING SOUND ON/OFF The ON/OFF of remote controller receiving sound can be change over by pressing the following step: a. Release the Auto Switch after Test Run operation is activated. b. Then, within 20 sec., after a., press Auto Switch for more than 5 sec. A beep beep sound will occur at the fifth sec., then release the Auto Switch. c. Within 20 sec. after b., press Auto Switch again. Everytime Auto Switch is pressed (within 20 sec. interval), remote controller receiving sound status will be reversed between ON and OFF. Long beep sound indicates that remote controller receiving sound is OFF. Short beep sound indicates that remote controller receiving sound is ON.

13.2. Indicator Panel

LED Color Light ON Light OFF
POWER Green Operation ON Operation OFF
TIMER Orange Timer Setting ON Timer Setting OFF
QUIET Orange Quiet Mode ON Quiet Mode OFF
POWERFUL Orange Powerful Mode ON Powerful Mode OFF
ION Green Ion Mode ON Ion Mode OFF
ALLERGEN BUSTER Blue Operation ON Operation OFF
Note: If POWER LED is blinking, the possible operations of the unit are Hot Start, during Deice operation, operation mode judgment, or ON timer sampling. If Timer LED is blinking, there is an abnormality operation occurs. If Ionizer, LED is blinking, there is an abnormality of Ionizer occurs.

14 Troubleshooting Guide

14.1. Refrigeration Cycle System
In order to diagnose malfunctions, make sure that there are no electrical problems before inspecting the refrigeration cycle. Such problems include insufficient insulation, problem with the power source, malfunction of a compressor and a fan. The normal outlet air temperature and pressure of the refrigeration cycle depends on various conditions, the standard values for them are shown in the table to the right.
14.2. Relationship Between The Condition Of The Air Conditioner And Pressure And Electric Current
Cooling Mode Condition of the air conditoner Low Pressure High Pressure Electric current during operation Low Pressure Heating Mode High Pressure Electric current during operation
Insufficient refrigerant (gas leakage)
Clogged capillary tube or Strainer
Short circuit in the indoor unit
Heat radiation deficiency of the outdoor unit

Inefficient compression

Carry on the measurements of pressure, electric current, and temperature fifteen minutes after an operation is started.
14.3. Breakdown Self Diagnosis Function
Once abnormality detected during operation, the unit will immediately stop its operation (Timer LED is blinking) and maximum of three error codes (abnormality) will be saved in memory. The abnormality of the operation can be identified through the below breakdown diagnosis method: Press CHECK button at remote controller continuously for more than five seconds to turn on the diagnosis mode, H11 will be displayed at remote controller. By pressing the TMER displayed. button once, next error code will be displayed; press V button once, previous error code will be
If error code displayed matches the error code saved in unit memory (abnormality detected), beep, beep, beep. sounds will be heard for 4 seconds and Power LED will light on. Otherwise, one beep sound is heard. If CHECK button is press again or without any operation for 30 seconds, the diagnosis mode will turn off.

14.4. Error Codes Table

Diagnosis display H00 H11 H12 H14 H15 H16 H19 H23 H26 H27 H28 Abnormality / Protection control Abnormality Judgement Emergency operation Primary location to verify
No abnormality detected Indoor / outdoor abnormal communication Connection capability rank abnormal Indoor intake air temperature sensor abnormality Outdoor compressor temperature sensor abnormality Outdoor Current Transformer open circuit Indoor fan motor merchanism locked Indoor heat exchanger temperature sensor abnormality Ionizer breakdown Outdoor intake air temperature sensor abnormality Outdoor heat exchanger temperature sensor abnormality Outdoor discharge air temperature sensor abnormality Indoor/Outdoor wrong connection Indoor / outdoor mismatch (brand code) Outdoor fan motor mechanism locked Indoor high pressure protection Indoor heat exchanger anti-freezing protection Cooling / Heating cycle changeover abnormality PFC control Refrigeration cycle abnormality Compressor rotation failure Cool high pressure protection IPM (power transistor) overheating protection

Normal operation > 1 min after starting Indoor fan operation operation only Continue for 5 sec. Continue for 5 sec. Continue for 5 sec. Continue for 5 sec. Continue for 5 sec. O (Cooling only) O O
Internal / external cable connections Indoor / Outdoor PCB Intake air temperature sensor (detective or disconnected) Compressor temperature sensor (detective or disconnected) Outdoor PCB IPM (Power transistor) module Indoor PCB Fan motor Heat exchanger temperature sensor (defective or disconnected) Ionizer Outdoor temperature sensor (defective or disconnected) Outdoor heat exchanger temperature sensor (defective or disconnected) Outdoor temperature sensor (defective or disconnected) Indoor/Outdoor supply voltage Indoor PCB Fan motor Air filter dirty Air circulation short circuit Insufficient refrigerant Air filter dirty 4-way valve V-coil Voltage at PFC No refrigerant (3-way valve is closed) Compressor Outdoor refrigerant circuit Excess refrigerant Improper heat radiation IPM (Power transistor) Insufficient refrigerant Compressor Excess refrigerant Improper heat radiation Outdoor PCB IPM (Power transistor) Compressor
H30 H33 H38 H97 H98 H99 F11 F90 F91 F93 F95 F96
Continue for 5 sec. 2 times occurance within 30 minutes 4 times occurance within 30 minutes 4 times occurance within 10 minutes 2 times occurance within 20 minutes 4 times occurance within 20 minutes

F97 F98 F99
Outdoor compressor overheating protection Total running current protection Outdoor Direct Current (DC) peak detection
4 times occurance within 10 minutes 3 times occurance within 20 minutes 7 times occurance continuously
Note: O - Frequency measured and fan speed fixed.
The memory data of error code is erased when the power supply is cut off, or press the Auto Switch until beep sound heard following by pressing the RESET button at remote controller. Although operation forced to stop when abnormality detected, emergency operation is possible for certain errors (refer to Error Codes Table) by using remote controller or Auto Switch at indoor unit. However, the remote controller signal receiving sound is changed from one beep to four beep sounds.
15 Disassembly and Assembly Instructions
Caution! When handling electronic controller, be careful of electrostatic discharge. Be sure to return the wiring to its original position. There are many high voltage components within the heat sink cover so never touch the interior during operation. Wait at least two minutes after power has been turned off.
15.1. Indoor Electronic Controller and Control Board
15.2. Indoor Cross Flow Fan and Fan Motor
15.3. Outdoor Propeller Fan and Fan Motor

16 Technical Data

16.1. CS-E9EKEB CU-E9EKEB
Cooling Characteristic at Different Outdoor Air Temperature Condition Indoor room temperature: 27/19 C Remote control setting: HI fan, COOL 16 C Compressor frequency: rated cooling Voltage: 230 V

Heating Characteristic at Different Outdoor Air Temperature Condition Indoor room temperature: 20 C Remote control setting: HI fan, HEAT 30 C Compressor frequency: rated heating Voltage: 230 V
Cooling Characteristic at Different Piping Length Condition Indoor room temperature: 27/19 C Remote control setting: HI fan, COOL 16 C Compressor frequency: rated cooling Voltage: 230 V
Heating Characteristic at Different Piping Length Condition Indoor room temperature: 20 C Remote control setting: HI fan, HEAT 30 C Compressor frequency: rated heating Voltage: 230 V
16.2. CS-E12EKEB CU-E12EKEB
16.3. Sensible Capacity Chart
Condition Indoor temperature : 27C / 19C Outdoor temperature : 35C / 24C CS-E9EKEB CU-E9EKEB
230V Indoor wet bulb temperature 17.0C 19.0C 19.5C 22.0C 30 SHC 1.96 2.05 2.12 Outdoor Temperature (C) SHC IP TC SHC 1.88 0.58 2.24 1.80 0.59 1.97 0.59 2.46 1.89 2.04 0.60 2.68 1.SHC 1.71 1.80 1.88

TC 2.58 2.83 3.09

IP 0.54 0.55 0.56

TC 2.41 2.60 2.65 2.88

IP 0.62 0.63 0.64

TC 2.04 2.24 2.44

IP 0.67 0.68 0.70

CS-E12EKEB CU-E12EKEB

230V Indoor wet bulb temperature 17.0C 19.0C 19.5C 22.0C 30 SHC 2.63 2.76 2.86 Outdoor Temperature (C) SHC IP TC SHC 2.52 0.91 3.02 2.43 0.92 2.65 0.92 3.31 2.55 2.75 0.94 3.61 2.SHC 2.30 2.43 2.53

TC 3.47 3.81 4.15

IP 0.84 0.86 0.87

TC 3.24 3.50 3.56 3.88

IP 0.97 0.99 1.01

TC 2.74 3.01 3.28

IP 1.05 1.07 1.08
TC - Total Cooling Capacity (kW) SHC - Sensible Heat Capacity (kW) IP - Input Power (kW)
17 Exploded View And Replacement Parts List
17.1. CS-E9EKEB CS-E12EKEB
Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts. 59
17.2. CS-E9EKEB CS-E12EKEB
REF. NO. PART NAME & DESCRIPTION CHASSY COMPLETE FAN MOTOR, DC 30W 3PH CROSS FLOW FAN COMPLETE BEARING ASSY SCREW - CROSS FLOW FAN EVAPORATOR CO. FLARE NUT (1/4) FLARE NUT (3/8) (1/2) CLIP FOR SENSOR DISCHARGE GRILLE COMPLETE VERTICAL VANE CONNECTING BAR CONNECTING BAR A.S.MOTOR, DC SINGLE 12V 300 LEADWIRE - AIR SWING MOTOR CAP - DRAIN TRAY HORIZONTAL VANE BACK COVER CHASSIS CONTROL BOARD CASING TERMINAL BOARD COMPLETE P.S CORD WITHOUT PLUG ELECTRONIC CONTROLLER - MAIN LEAD WIRE - AIR SWING MOTOR ELECTRONIC CONTROLLER - POWER SENSOR COMPLETE CONTROL BOARD FRONT COVER CO. INDICATOR COMPLETE INDICATOR HOLDER INDICATOR HOLDER CONTROL BOARD TOP COVER REMOTE CONTROL COMPLETE FRONT GRILLE CO. INTAKE GRILLE COMPLETE GRILLE DOOR AIR FILTER SCREW - FRONT GRILLE CAP - FRONT GRILLE DRAIN HOSE INSTALLATION PLATE BAG COMP. - INSTALLATION SCREW FULCRUM ELECTRONIC CONTROLLER - IONIZER CASING - IONIZER CASING - IONIZER ION GENERATOR SUPERSONIC AIR PURIFYING DEVICE ELEC. CONTROLLER - SUPERSONIC SUPER ALLERU BUSTER FILTER FRAME FR AIR FILTER SUPERSONIC FRAME FR AIR FILTER SUPERSONIC QTY. CS-E9EKEB CWD50C1431 CWA981149J CWH02C1045 CWH64K007 CWH551146 CWB30C1832 CWT251030 CWT251031 CWH32143 CWE20C2343 CWE241150 CWE261072 CWE261065 CWA98260+MJ CWA67C3849 CWH521096 CWE241173 CWD932454 CWH102289 CWA28C2069 CWA20C2478 CWA73C2014 CWA67C3977 CWA744060 CWA50C2321 CWH13C1120 CWE39C1126 CWD932429 CWD932430 CWH131207 CWA75C2807 CWE11C3138 CWE22C1154 CWE141073 CWD001144 XTT4+16CFJ CWH521109 CWH851063 CWH361067 CWH82C067 CWH621046 CWA743675 CWD932464 CWD932431 CWH94C0001 CWH91C1013 CWA743874 CWD00C1133 CWD011026 CWD011027 CS-E12EKEB CWB30C1833 CWT251032 CWA73C2015 Remarks O

O O O O O

(Note) All parts are supplied from PHAAM, Malaysia (Vendor Code: 061). O marked parts are recommended to be kept in stock.
17.3. CU-E9EKEB CU-E12EKEB
Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
17.4. CU-E9EKEB CU-E12EKEB
REF NO. 53 DESCRIPTION & NAME CHASSY ASSY ANTI - VIBRATION BUSHING COMPRESSOR, DC 220V NUT - COMPRESSOR MOUNT CRANKCASE HEATER SOUND PROOF MATERIAL FAN MOTOR BRACKET FAN MOTOR, DC 40W 3PH SCREW - BRACKET FAN MOTOR SCREW - FAN MOTOR MOUNT PROPELLER FAN ASSY NUT - PROPELLER FAN CONDENSER CO. STRAINER TUBE ASSY CO. (EXP. VALVE) HOLDER-COUPLING 3-WAY VALVE 4-WAY VALVE 2-WAY VALVE DRYER V-COIL CO. FOR 4-WAY VALVE V-COIL COMPLETE FOR EXP. VALVE REACTOR SENSOR COMPLETE SENSOR COMPLETE CONTROL BOARD CASING TERMINAL BOARD ASSY FUSE, 250V FUSE HOLDERS CONTROL BOARD CASING ELECTRONIC CONTROLLER - MAIN OVER HEAT PROTECTOR COMPLETE CONTROL BOARD COVER SENSOR - COMPLETE CLIP FOR SENSOR TERMINAL COVER NUT FOR TERMINAL COVER SOUND PROOF BOARD CABINET SIDE PLATE CABINET SIDE PLATE (LEFT) HANDLE WIRE NET CABINET FRONT PLATE CO. CABINET TOP PLATE CONTROL BOARD COVER CONTROL BOARD COVER COMPLETE OPERATING INSTRUCTION INSTALLATION INSTRUCTION INSTALLATION INSTRUCTION INSTALLATION INSTRUCTION STRAINER FLARE NUT (1/4) FLARE NUT (3/8) (1/2) QTY. 1 CU-E9EKEB CWD50K2140 CWH50077 5CS110XBD04 CWH56000J CWA341026 CWMG300001 CWD541021 ARW44W8P40AC CWH551060J CWH55252J CWH03K1013 CWH56053J CWB32C1741 CWB11094 CWT01C3643-1 CWH351025 CWB011165J CWB001037J CWB021180J CWB101016J CWA43C2144J CWA43C2058J CWA421050 CWA50C2241 CWA50C2281 CWH102294 CWA28K1021J XBA2C31TR0 K3GB1BH00005 CWH102293 CWA73C1996R CWA14C1011 CWH131264 CWA50C2066 CWH321010 CWH171001 CWH7080300J CWH151090 CWE041074A CWE041144A CWE161010 CWD041054A CWE06C1136 CWE031014A CWH131213 CWH13C1145 CWF565072 CWF612893 CWF612894 CWF612895 CWB111004 CWT251030 CWT251031 CU-E12EKEB CWB011316J CWA421085 CWA73C1997R CWT251032 Remarks
(Note) All parts are supplied from PHAAM Malaysia (Vendor Code: 061). O marked parts are recommended to be kept in stock.