Contents Chapter Preparation for Installation ....... 4 Deciding on Where to Install the Indoor Unit ....5 Indoor Unit Installation .
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Chapter Preparation for Installation ....4 Deciding on Where to Install the Indoor Unit . . . 5 Indoor Unit Installation ....8 Purging the Unit .
Preparation for Installation When deciding on the location of the air conditioner with the owner, the following restrictions must be taken into account. General Do NOT install the air conditioner in a location where it will come into contact with the following elements: Combustible gases Saline air Machine oil...
Deciding on Where to Install the Indoor Unit Indoor Unit There must be no obstacles near the air inlet and outlet. Install the indoor unit on a ceiling that can support its weight. Maintain sufficient clearance around the indoor unit. Make sure that the water dripping from the drain hose runs away correctly and safely.
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Deciding on Where to Install the Indoor Unit (cont.) Drawing of the indoor unit Unit : mm 020/026/032/035/040 Name Description Liquid pipe connection ø6.35 Flare Gas pipe connection ø12.70 Flare Drain pipe connection OD29 ID25(without drain pump) Interunit wiring port Power wiring port OD29 ID25(with drain pump) Drain pipe connection...
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Unit : mm 052/070/072 Name Description Liquid pipe connection ø9.52 Flare Gas pipe connection ø15.88 Flare Drain pipe connection OD29 ID25(without drain pump) Interunit wiring port Power wiring port OD29 ID25(with drain pump) Drain pipe connection Air filter For M8~M10 Hook...
Indoor Unit Installation It is recommended to install the refnet joint before installing the indoor unit. Place the pattern sheet on the ceiling at the spot where you want to install the indoor unit. Since the diagram is made of paper, it may shrink or stretch slightly due to temperature or humidity.
Purging the unit On delivery, the indoor unit is loaded with refrigerant gas. All this gas must therefore be purged before connecting the assembly piping. To purge the inert gas, proceed as follows. Unscrew the pinch pipe at the end of each refrigerant pipe. Result: All inert gas escapes from the indoor unit.
Connecting the Refrigerant Pipe There are two refrigerant pipes of differing diameters: Gas refrigerant port A smaller one for the liquid refrigerant A larger one for the gas refrigerant Liquid refrigerant The inside of copper tube must be clean & has no dust. port Drain The connection procedure for the refrigerant pipes varies according to...
Cutting/Flaring the Pipes Make sure that you have the required tools available (pipe cutter, reamer, flaring tool and pipe holder). If you wish to shorten the pipes, cut it with a pipe cutter, taking care to ensure that the cut edge remains at a 90° angle with the side of the pipe. Refer to the illustrations below for examples of edges cut correctly and incorrectly.
Performing Leak Test & Insulation Leak Test To check for gas leaks on the indoor unit, check the connection part of each refrigerant pipe by using a leak detector. Insulation Once you have checked that there are no leaks in the system, you can insulate the piping and hose.
Drain Hose Installation Care must be taken when installing the drain hose for the indoor unit to ensure that any condensate water is correctly drained outside. The drain hose can be installed to the right or left side of the base pan. Remove the rubber cap of the drain hose port.
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Drain Hose Installation (cont.) Testing the drainage Prepare a little water about 5 liters. Open the cover of water supply intake by turning and pulling the cover. Water supply intake Pour water into the the indoor unit as shown in figure. If you do not pour water inside the water supply intake, water may spill from the indoor unit.
Connecting the Connection Cord The indoor unit is powered from the outdoor unit via the connection cord. Remove the screw on the electrical component box and remove the cover plate. Route the connection cord through the side of the indoor unit and connect the cable to terminals;...
Increasing Fan Speed If external static pressure is too great(due to long extension of ducts, for example), the air flow volume may drop too low at each air outlet. This problem can be solved by increasing the fan speed using the following procedure. Remove the screw on the electrical component box and remove the cover plate.
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Graph of fan speed and limitation of external static pressure Model : Model : Model : 026/032 035/040 Limitation of use Limitation of use Limitation of use Fan speed (m /min) Fan speed (m /min) Fan speed (m /min) Model : Model : 070/072 Limitation of use...
Assigning Address to Indoor Unit Before installing the indoor unit, assign an address to the indoor unit according to the air conditioning system plan. The address of the indoor unit is assigned by adjusting MAIN(SW02) and RMC(SW01) rotary switches. K1 K2 K3 K4 SW03 K5 K6 K7 K8 SW04...
Additional Functions Compensation for lost temperature in heating operation Reduces the difference between an actual room temperature and a sensed temperature by the air conditioner when heating. K5 K6 K7 K8 Switch No. Switch ON Switch OFF SW04 2°C compensation 5°C compensation Adjusting filter cleaning cycle You can adjust the cycle for filter sign indicator.
Drain Pump Installation (optional) It is recommended to install the drain pump before installing the indoor unit. Accessories Drain pump & Cable clamp Cable-tie Float switch Disassemble the existing bracket for drain pump by unscrewing 4 screws. Connect the drain pump cable to yellow terminal(CN75) and the float switch to black terminal(CN51).
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Install the new bracket for drain pump. Adjust K4 DIP switch(SW03) to the "OFF" position. K1 K2 K3 K4 Switch No. Switch Position Using Drain Pump SW03 Wrap the drain tube outlet on the right and left side of the indoor unit with an insulating materials.
Troubleshooting Detection of errors If an error occurs during the operation, an LED flickers and the operation is stopped except the LED. If you re-operate the air conditioner, it operates normally at first, then detect an error again. LED Display on the receiver & display unit LED Display Indicators Concealed Type...
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LED Display Indicators Concealed Type Abnormal conditions Operating Blue Standard Type Self-diagnostic error Displayed on appropriate indoor (including the indoor unit not detected) unit which is operating Displayed on outdoor unit 1. Error of electronic expansion valve close 2. Error of electronic expansion valve open 3.
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Troubleshooting (cont.) Wired remote controller If an error occurs, is displayed on the wired remote controller. If you would like to see an error code, press the Test button. Display Explanation Remark Error of communication between the outdoor unit and the wired Communication remote controller errors...
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THIS AIR CONDITIONER IS MANUFACTURED BY: ESTE AIRE ACONDICIONADO HA SIDO FABRICADO POR: CE CLIMATISEUR EST FABRIQUE PAR: QUESTO CONDIZIONATORE D’ARIA È PRODOTTO DA: ESTE APARELHO DE AR CONDICIONADO É FABRICADO POR: DIESE KLIMAANLAGE IST FABRIZIERT VON: AYTH H ™Y™KEYH KATA™KEYA™THKE A¶O: ùíéí...