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Installation 1

PACD011001G2 / PACD011004G3

Urban Multi Inverter “MX1” Series

Management of
available space
when placing
several units in
close proximity to
each other

When placing several units in close proximity to each other some thought should be given to the possibility

of short circuiting and also to the provision of adequate space for servicing. (For more detailed information

please refer to the system design materials.)

Note:

1. Height of walls in case of Patterns 1 and 2:

Front: 1500mm

Suction side: 500mm

Side: Height unrestricted

2. If the above wall heights are exceeded then h1/2 and h2/2 should be added to the front and suction side

service spaces respectively as shown in the figure on the right.

3. When installing the units the most appropriate pattern should be selected from those shown above in

order to obtain the best fit in the space available always bearing in mind the need to leave enough room

for a person to pass between units and wall and for the air to circulate freely.

(If more units are to be installed than are catered for in the above patterns your layout should take

account of the possibility of short circuits.)

4. The units should be installed to leave sufficient space at the front for the on site refrigerant piping work

Содержание Urban Multi MX1 Series

Страница 1: ...ample 1 Signal interference due to use of multiple core cable all model 71 7 2 Example 2 Mismatch between cables connecting indoor and outdoor units and corresponding piping all model 72 7 3 Example 3 Drain pipe trap shape defective 73 7 4 Example 4 Pressure down despite absence of leaks during air tight test all model 74 7 5 Example 5 Excessive noise due to incorrect angling of Line branch pipes ...

Страница 2: ...PACD011001G2 PACD011004G3 2 Urban Multi Inverter MX1 Series 8 6 Check This Before Performing a Test Run 97 8 7 Precautions in Charging Refrigerant 98 ...

Страница 3: ...f 16 indoor units of different capacities and types can be connected to 1 refrigerant system AFTER THE INSTALLATION IS FINISHED REFRIGERANT PIPING AND ELECTRIC WIRING MUST BE CHECKED UNIT BY UNIT TO PREVENT WRONG CONNECTION 2 Up to 100m maximum of actual piping length is possible PROPER MEASURES MUST BE TAKEN TO PREVENT TUBES FROM GETTING CONTAMINATED OR MOISTENED WHEN BRAZING NITROGEN GAS MUST BE...

Страница 4: ...ES ETC MUST BE LISTED UP AND SCHEDULED IN ADVANCE REFRIGERANT TUBE LENGTH TO EACH UNIT AND REFRIGERANT CHARGE AMOUNT MUST BE ACCURATELY RECORDED FOR THE FUTURE SERVICE The Urban Multi Series functions properly if the installation is done properly however the opposite can also be true It must be remembered that the quality of installation is EXTREMELY IMPORTANT ...

Страница 5: ...ban Multi Inverter MX1 Series 5 1 2 The Installation is of Vital Importance The analysis of major installation problems experienced during the year of 1988 is shown below How these installation problems affect an equipment are shown below ...

Страница 6: ... be determined such that lenght of piping is kept to a minimum Piping should be kept within permissible limits in terms of length and height difference 2 Positioning of outdoor unit Position such that maintenance and repairs can be carried out leave room for servicing Avoid reduction of airflow and short circuiting Avoid reduction of airflow and short circuiting 3 Positioning of indoor unit Positi...

Страница 7: ...trol wiring fitting of remote controller and central control panel boundary work on areas such as connection of drain piping and humidification supply piping inspection and foundation 2 Keep a constant check on the progress of the construction work to avoid deviations from the air conditioning work schedule 3 For sleeve and insert work the positions of ceiling girders should be confirmed and sleev...

Страница 8: ...nd outdoor units 3 Can the air filters be replaced easily 4 Have you indicated the size and location of the ceiling inspection ports Make sure there no other installations in the area above 5 Have you taken into account the depth of the installation area In case of ceiling built in type 6 Have you specified the position of the indoor unit clearly Have you taken full accout of relevant features of ...

Страница 9: ...6 Group indoor units controlled by one or two remote controllers group or individual control 7 Assign central group Nos if using centralized control 8 Add field settings and optional equipment for indoor units 9 Add unit No if making separate field settings for each indoor unit under group control Note With the Inverter MX1 Series unit No is determined through automatic addressing therefore readou...

Страница 10: ...individual outdoor unit The outdoor unit model number should be inserted into the diagram CU 10MX 2 Insert name of refrigerant system PAC1 PAC2 3 Insert name of indoor unit CS 32LM 32LM 4 Insert system name of indoor unit 5 Insert installation position Do this when demarcation is possible 6 Insert remote controller control wiring Group Indicated by solid line Solid line 7 Insert centralized contro...

Страница 11: ... Inverter MX1 Series 11 3 Installation 1 3 1 Step by Step Installation Procedure The above list indicates the order in which the individual work operations are normally carried out but this order may be varied where local conditions warrant such a change ...

Страница 12: ...idea to think of the liquid and gas pipes as pairs c Attention should be paid to the construction of the beam themselves since there are sometimes parts of the beam which cannot be used to accommodate through holes Example Through holes in a reinforced concrete beam Positioning the Insert a An insert is a metal tool which is inserted into a floor or a beam before the concrete is set such that fitt...

Страница 13: ...tant points 1 The suspension bolts must be strong enough to support the weight of the indoor unit 2 Optional features must be added to the indoor unit prior to installation 3 The model name should be checked prior to installation 4 Take care to align the main unit correctly Bearing in mind piping layout and direction of blow out 5 Leave sufficient space for servicing to be carried out 6 Make inspe...

Страница 14: ...ure the refrigerant does not leak out Actoin to avoid problem Cause of problem l Rainwater work water etc gets into pipes from outside l Moisture generated inside pipes due to condensation l Formation of oxides inside pipes during soldering l Dirt dust or other extraneous material gets into pipes from outside l Leak from soldered area l Leak from flared area l Leak from flange area Pipe covering F...

Страница 15: ...carried along inside the pipes to cause damage to various members of the system such as valves or compressors and the system ceases to function properly In order to avoid this problem nitrogen is passed through the pipes while the soldering work is being carried out This operation is known as nitrogen replacement Air is replaced by nitrogen This is standard work practice for all brazing work Impor...

Страница 16: ...ive which may be used according to the work area and term of work 1 Pinching method The end of the copper pipe is squeezed together and the gap brazed 2 Taping method The end of the copper pipe is covered with PVC tape vinyl tape Taping method Particular care should be taken during the following operations When passing copper pipe through a penetration hole Dirt easily gets into the pipe When copp...

Страница 17: ...ondensation if fluon or carbon dioxide are used and oxygen carries the risk of explosions 2 Connect the charge hose from the pressure regulator to the service port on the liquid pipe side of the outdoor unit 3 Fit blanking plugs to all indoor units B other than unit A 4 Open the main valve on the nitrogen cylinder and set the pressure regulator to 0 5MPa 5 Check that the nitrogen is passing throug...

Страница 18: ...gas pipes Choice of Materials for Refrigerant Piping a Refrigerant piping The piping used must meet the requirements of the JIS standard or equivalent Size material thickness etc Specification Oxidized phosphorous seamless copper pipe Long pipe lengths or coiled pipe copper pipe with heat insulation coating should be used to avoid the necessity for frequent brazing The whole job is made easier if ...

Страница 19: ... fitting and its angle to prevent oil return or drift For example see page 75 c It is standard working practice to use the nitrogen replacement method when brazing Important points 1 Every effort must be made to avoid fire Clean area where brazing is to be performed and make sure that fire fighting equipment and water are ready to hand 2 Be careful of burns 3 Make sure that the gap between the pip...

Страница 20: ... oil Ester or ether oil this ensures that the flare nut passes smoothly preventing the pipe from twisting Do not use SUNISO 4GS oil Important points 1 Burrs should be carefully removed 2 2 spanners should be used to grip the pipe 3 The flare nut must be inserted before starting the flaring operation 4 The appropriate amount of torque should be used to tighten the flare nut 5 Check that there is no...

Страница 21: ...ction is true Important points 1 Only clean refrigeration oil should be used to coat the flange i e free from dirt or water 2 The correct amount of torque should be applied when tightening the flange bolts Standard torques for tightening screws and bolts ISO hexagonal bolt Example Order A C B D The bolts should be tightened little by little in the above order such that the same degree of torque is...

Страница 22: ...s maintained PVC pipes should not be bent Spacing of supports for horizontal piping c The lenght of pipe laid horizontally should be kept to a minimum Drain Trap Fit any indoor unit whose drain pipe connection is subjected to negative pressure with a drain trap CS 40 125EM only a Rig the drain trap as shown in the drawing bellow b Provide one trap per unit A single trap for converging units will p...

Страница 23: ...permits the drain socket and drain pipe to be connected without difficulty and prevents any undue strain being placed on the drain pan Important points 1 The drain pipe should be at least equal in size to that of the indoor unit 2 The drain pipe is thermally insulated to prevent the formation of condensation inside the pipe 3 The drain up mechanism should be fitted before the indoor unit is instal...

Страница 24: ...y Cassette Type CS LM 1 Rig drain piping The diameter of the drain pipe should be greater than or equal to the diameter of the connecting pipe vinyl tube pipe size 25mm outer dimension 32mm Keep the drain pipe short and sloping downwards at a gradient of at least 1 100 to prevent air pockets from forming If the drain hose cannot be sufficiently set on a slope execute the drain raising piping To ke...

Страница 25: ...r unit and no more than 300 mm from the unit If converging multiple drain pipes install according to the procedure shown below Select converging drain pipes whose gauge is suitable for the operating capacity of the unit 2 After piping work is finished check drainage flows smoothly Open the water inlet lid add approximately 2500 cc of water gradually and check drainage flow WHEN ELECTRIC WIRING WOR...

Страница 26: ...s to go back to the first mode You can check whether drainage is satisfactory or not by removing the access opening lid and checking the water level of the drain pan through the access opening Be careful when doing so because the fan is turning at the same time 4 Way Cassette Type CS UM 1 Rig drain piping The diameter of the drain pipe should be greater than or equal to the diameter of the connect...

Страница 27: ...et Insulate the drain hose inside the building PRECAUTIONS FOR DRAIN RAISING PIPING Install the drain raising pipes at a height of less than 550 mm Install the drain raising pipes at a right angle to the indoor unit and no more than 300 mm from the unit Note The incline of attached drain hose 1 should be 75 mm or less so that the drain socket dose not have to stand additional force If converging m...

Страница 28: ...mp will start up Check that the water has drained from the unit Press to go back to the first mode Note that the fan also starts rotating Corner Type CS DM 1 Install the drain pipes Keep piping as short as possible and slope it downwards so that air may not remained trapped inside the pipe Keep pipe size equal to or greater than that of the connecting pipe Vinyl pipe of 25 mm nominal diam and 32 m...

Страница 29: ...pe and drain hose and fasten with a clamp 2 Mount the drain pipe insulation and wrap with vinyl tape 3 After completing steps 1 and 2 attach the drain raising pipe to the drain pipe connection port of the indoor unit and fasten with a clamp Do not connect any other pipes between the drain raising pipe and the indoor unit Adjust the drain raising height by turning the drain raising pipe as shown in...

Страница 30: ...drained from the unit Press to go back to the first mode Small Duct Type CS JM 1 Install the drain pipes Keep piping as short as possible and slope it downwards so that air may not remain trapped inside the pipe Keep pipe size equal to or greater than that of the connecting pipe vinyl pipe of 26 mm nominal diam Use the attached clamp and drain hose Tighten the clamp firmly Insulate the clamp with ...

Страница 31: ...door unit and tighten it with the clamp 3 Insulate both metal clamp and drain hose with the attached sealing pad To ensure a downward slope of 1 100 install hanging bars every 1 to 1 5 m If unifying multiple drain pipes install pipes shown below 2 After piping work is finished check drainage flows smoothly Open the water inlet lid add approximately 1000cc of water gradually and check drainage flow...

Страница 32: ...sealing pad Insulate the drain hose inside the building If the drain hose cannot be sufficiently set on a slope fit the hose with drain raising piping as shown in the drawing HOW TO INSTALL PIPING 1 Connect the drain hose to the drain raising pipes and insulate them 2 Connect the drain hose to the drain outlet on the indoor unit and tighten it with the clamp 3 Insulate both metal clamp and drain h...

Страница 33: ...ined under TEST OPERATION WHEN ELECTRIC WIRING WORK IS NOT FINISHED Remove the electric parts box lid connect a power supply and remote controller to the terminals Next press the inspection test operation button on the remote controller The unit will engage the test operation mode Press the operation mode selector button until selecting FAN OPERATION Then press the ON OFF button The indoor unit fa...

Страница 34: ...Installation 1 PACD011001G2 PACD011004G3 34 Urban Multi Inverter MX1 Series Ceiling Type CS TM ...

Страница 35: ...I must conform to Japanese standards stipulated in the Electric Appliance Regulatory Act If using a sheathed wire the grounding shown in the figure on the left is unnecessary 2 For CS KM indoor unit use sheathed wire 2 Problems arising from the use of unsuitable cable a When cable less than 0 75 mm is used Where the control wiring is particularly long the transmission signals may for example becom...

Страница 36: ...ables must correspond exactly 2 A suitable gap must be left between the control cables and the power supply cables where these are laid alongside each other See Separation of control and power supply cables on page 37 Power Supply Cabling of Main Power Supply 1 Choosing a circuit breaker The power supply work must conform to local regulations In Japan the relevant regulations are the MITI ordinanc...

Страница 37: ...lerance of 40 or more of the rated current of the overcurrent circuit breaker wiring circuit breaker etc 2 To have a current tolerance of 125 or more of the rated current in cases where the rated current of the apparatus is 50A or less 3 To have a current tolerance of 110 or more of the rated current in cases where the rated current of the apparatus is more than 50A 4 To satisfy voltage drop stand...

Страница 38: ... noise resulting from the transmission of vibrations and operating noise from the main unit to the ducts or to the rest of the building b The speed of the airflow should be taken into account when choosing air suction and distribution grills in order to keep wind noise to minimum Important points 1 The air discharge duct must be thermally insulated 2 The canvas duct on the inlet side must be set i...

Страница 39: ...t model and its operating conditions since there are occasions when the gas and liquid pipes also need to be thermally insulated Important points 1 The thickness of the thermal insulation material must be determined in the light of the pipe sizes 2 It will be necessary to increase the values in the above table for top floors or where conditions are hot and humid 3 Where a customer supplies his own...

Страница 40: ...f the concrete should be broken up to make it uneven 4 A drainage channel should be made around the foundation to cater for waste water around the machinery 5 When installing a unit on the roof be sure to check the strength of the roof and pay special attention to waterproofing requirements 6 If the unit is to be installed on a frame install the waterproofing board within a distance of 150mm under...

Страница 41: ...portion in the figure 1 2 Remove the fitting yellow color for loading as shown in the figure 2 Tighten the installation bolt of compressor firmly again 2 fittings are attached to the front side of a single compressor CAUTION Install the unit securely in case of earthquake an typhoon cyclone hurricane or other strong wind The unit may topple or cause another accident if improperly set up Pay specia...

Страница 42: ...d in a well ventilated area otherwise short circuiting will occur Special care should be taken in situations such as that illustrated in the diagram below since additional fittings such as air discharge ducts may also be required Attention should be paid to the duct s resistance Conditions for installation under the eaves When L 1m then N must be M When L 1m then K must be M Where K is the require...

Страница 43: ...d be such as to avoid short circuiting between suction air and discharge air A snow hood is available as an optional accessories so please make use of it where necessary 2 The unit should be oriented in such a way as to prevent the air heat exchanger from facing into driving snow 3 The outdoor unit should be set at a higher level in relation to the surface on which it is mounted than the anticipat...

Страница 44: ...restricted 2 If the above wall heights are exceeded then h1 2 and h2 2 should be added to the front and suction side service spaces respectively as shown in the figure on the right 3 When installing the units the most appropriate pattern should be selected from those shown above in order to obtain the best fit in the space available always bearing in mind the need to leave enough room for a person...

Страница 45: ...g should be allowed in accordance with the rules of installation Note The inverter air conditioner sometimes experiences noise interference from AM broadcast Due consideration should therefore be given as shown in the figure to the proximity of other electronic equipment such as radios PCs or stereos when selecting an installation location for the unit and designing the layout for the wiring ...

Страница 46: ...sure then the test is deemed a success If the pressure drops then the leak must be located See following page However if there is a change in the ambient temperature between the pressurizing stage and the time when you check for a drop in pressure then you will have to adjust your calculations accordingly since a change of 1 C can account for a pressure change of approximately 0 01MPa Compensating...

Страница 47: ...d but the source of the leak cannot be traced 1 Release the nitrogen until the pressure reaches 0 3MPa 2 Increase pressure to 1 5MPa using gaseous flon gas R22 Nitrogen and refrigerant gas mixed 3 Search for the source of the leak using a detector such as a halide torch or a propane or electric detector 4 If the source of the leak still cannot be traced then repressurize with nitrogen up to 2 8MPa...

Страница 48: ...he moisture in the pipes will evaporate The evacuation of air conditioner piping provides the following effects 1 Vacuum drying 2 Removes air and nitrogen used in air tightness test from the inside of pipes Therfore it is necessary to ensure that the both purposes have been achieved in the vacuum drying operation Example When outside temperature is 72 C As shown in the table on the right the degre...

Страница 49: ...ump itself is Commercially available vacuum pumps exhaust velocity of 20 30 l min usually take an extremely long time to achieve vacuum We recommend a vacuum pump of approx 60 100 l min 2 Degree of vacuum Ultimate vacuum varies largely according to use of the vacuum pump Vacuum pumps used for vacuum forming cannot be used for vacuum drying A vacuum pump with a high degree of vacuum is required Whe...

Страница 50: ...e attached vacuum gauge on the gauge manifold and the degree of vacuum of the vacuum pump 4 Calibration method 1 Connect a Pirani vacuum gauge and the gauge manifold vacuum gauge 0 76 cmHg to the vacuum pump at the same time and run the pump for about 3 minutes 2 Make sure the reading of the Pirani vacuum gauge is 5 Torr 667 Pa or less The reading of conventional vacuum pumps lowers to about 0 2 T...

Страница 51: ...e the vacuum pump for a further hour If even after 3 hours the vacuum has not reached 5 mmHg then check the system for a leak 2 Carry out maintained vacuum test Produce a vacuum in excess of 755 mmHg and do not release it for an hour or more Check the vacuum gauge to make sure that it has not risen If the gauge does rise then there is still moisture in the pipe or there is a leak somewhere 3 Addit...

Страница 52: ...Vacuum drying 1st time 2 hours 2 Vacuum breaking 1st time Use nitrogen to raise pressure to 0 05MPa Since the nitrogen gas used to break the vacuum is dry nitrogen this process serves only to enhance the overall drying effect of the vacuum drying operation itself However since the effectiveness of this process is severely impaired by a high moisture level inside the pipes the utmost care is requir...

Страница 53: ... unit and the most distant indoor unit is more than 10m 3 The additional charging operation should be carried out by input of liquid into the liquid pipes from a charging cylinder following completion of the vacuum drying operation 4 When the additional charging operation cannot be satisfactorily completed use the action of the compressor to complete the additional charging during the test run Use...

Страница 54: ...Installation 1 PACD011001G2 PACD011004G3 54 Urban Multi Inverter MX1 Series ...

Страница 55: ...oor unit side use KHRP26K17T Example Line branch pipes A In the case of Line branch pipes other than the first branch select the proper branch kit model based on the total capacity sum for computation of the indoor units installed after the first branch using the following table For the total capacity see the item 1 in the section under COMBINATION at the Between outdoor unit and uppermost stream ...

Страница 56: ...anch pipes other than the first branch select the proper branch kit model based on the total capacity sum for computation of the indoor units installed after the first branch using the following table For the total capacity see the item 1 in the section under COMBINATION at the beginning Between outdoor unit and uppermost stream refrigerant branch kit Match the pipe size to that connected to outdo...

Страница 57: ...pment model For details refer to the installation manual attached with the unit For Inverter MX1 Series Make settings after activating power to the system and while both the indoor and outdoor units are stopped For other than Inverter MX1 Series ME1 Series etc Settings must be made before power is activated Changes made after power has been turned ON will be ignored Indicate the person responsible...

Страница 58: ...tput 1 ON OFF input from outside Set when ON OFF is to be controlled from outside Forced OFF ON OFF control External protection device 2 Thermostat differential changeover Set when remote sensor is to be used CS LM CS UM CS DM CS TM only 1 C 0 5 C 3 OFF by thermostat fan speed LL Set fan speed 4 Automatic mode differential automatic temperature differential setting for UM system heat recovery seri...

Страница 59: ...fter setting of setting mode 1 including C H select SS1 and setting mode 2 3 Monitor mode Select check items with the operation button Contents displayed Press the RETURN button Press the RETURN button 2 Setting mode 2 Select items with the operation button Select setting items with the operation button Press the RETURN button Press the RETURN button Press the RETURN button Contents displayed Sele...

Страница 60: ...plete GROUP MAIN cool heat selection ON low noise OFF sequential start MODE TEST L N O P SEQ IND MAIN SUB START H1P H2P H3P H4P H5P H6P H7P SET MODE TEST L N O P SEQ IND MAIN SUB START H1P H2P H3P H4P H5P H6P H7P C H SELECT SET MODE TEST L N O P SEQ IND MAIN SUB START H1P H2P H3P H4P H5P H6P H7P C H SELECT MODE TEST L N O P SEQ IND MAIN SUB START H1P H2P H3P H4P H5P H6P H7P C H SELECT SET SET MODE...

Страница 61: ...ed address Low noise demand address Forced fan switch Indoor unit forced operation Frequency fix TE setting TC setting Note 1 Defrost setting Note 1 Air NET address Description Emergency operation when inverter type outdoor unit malfunctions Address for cool heat unified operation Address for low noise demand operation Indoor unit fan turns while unit is stopped Allows operation of indoor unit fro...

Страница 62: ...ation Allows operation of indoor unit from outdoor unit Indoor unit forced operation 5 S Frequency fix Normal operation Fixes compressor frequency INV 60Hz OFF STD 1 ON OFF STD 2 ON OFF Frequency fix 6 S Address 0 Binary number 1 6 digits 2 31 Address for cool heat unified operation Cool heat unified address 2 S S S S Address 0 Binary number 1 6 digits 2 63 Address for Air Net Air Net address 10 S...

Страница 63: ...e for cooling High Normal factory set Low Defrost temperature setting for defrost Quick defrost Normal factory set Slow defrost EMG emergency operation when malfunction occurs ON OF Push the SET button and match with the LEDs No 1 15 push the RETURN button and enter the data for each setting Data such as addresses and number of units is expressed as binary numbers the two ways of expressing are as...

Страница 64: ...connected HR Boxes 0 63 units Lower 6 digits No 7 Number of connected zone units excluding outdoor and HR Boxes 0 63 units Lower 6 digits No 8 Number of outdoor units 0 63 units Lower 6 digits No 9 Number of HR Boxes 0 128 units Lower 4 digits upper No 10 Number of HR Boxes 0 128 units Lower 4 digits lower No 11 Number of zone units excluding outdoor and HR Boxes 0 63 units Lower 6 digits No 12 Nu...

Страница 65: ...ssumed that the vacuum drying operation has been completed Check for incorrectly laid power cables and loose screws Check for incorrectly laid control cables and loose screws Additional charge of refrigerant when length of refrigerant piping exceeds 10m Open gas line stop valve to the full Open liquid line stop valve to the full Measure insulation l Use a 500V insulation tester l Do not use a insu...

Страница 66: ...s been completed then you should explain to the customer how to operate the system l Urban Multi Inverter MX1 Series Pushing the test run button switches the thermostat on for 30 minutes Put into test run mode Set the operating mode to Cooling Reason To prevent liquid back Momentary operation 5 seconds Reoperate air conditioning for further 3 minutes Normal running l Operate the indoor units one b...

Страница 67: ...e unlikely event of a serious leak in the system The KHK High Pressure Gas Protection Association in Japan has established its own standard in respect of refrigerant gas concentrations for inclusion with the general standards covering refrigeration and air conditioning facilities 5 1 2 Maximum Concentration Level Dangerous concentration Dangerous concentration means the maximum concentration of CF...

Страница 68: ...nt in size to 0 15 or more of the floor area Step 3 Calculating the refrigerant density using the results of the calculations in steps 1 and 2 above If the result of the above calculation exceeds the maximum concentration level then make similar calculations for the second then third smallest room and so until the result falls short of the maximum concentration Step 4 Dealing with the situations w...

Страница 69: ...ss of the dangerous concentration level then it may be necessary to revise the system design to some extent or else take one of the following courses of action Action 1 Making openings which will allow the air to flow freely into the room Make openings above and below the door which are each equivalent in size to 0 15 or more of the floor area or make a doorless opening Action 2 Fit a mechanical v...

Страница 70: ...me on the plate on the back of the outdoor unit external notice board as this information will be required for servicing the system c Explain to the customer how to operate the equipment and let him try it d Assemble all the relevant diagrams and other printed matter which is required to operate the system and hand it all over to the customer on the spot and tell him to keep it e Make the service ...

Страница 71: ...resses such as 13 or 15 Source of Problem and Remedial Action Multiple core cable has been used for at least part of the interconnecting wiring between the remote controller and the indoor units This has resulted in signal interference leading to a transmission malfunction The multiple core cable was replaced by twin core cable and the fault disappeared Main Points Although twin core cable had bee...

Страница 72: ...g any malfunction and the system is operating but there is no flow of warm air from the indoor unit in heating mode Source of Problem and Remedial Action The connecting cables and the corresponding piping were not correctly matched Recabling was carried out and the fault disappeared Main Points Special care must be taken when the pipework and cabling are carried out by different people Run each in...

Страница 73: ...s reshaped and the fault disappeared Main Points Duct types 40 125 require a drain trap Reason There is resistance on the air inlet side caused by the heat exchanger and air filter and this in turn creates negative pressure in relation to the atmospheric pressure on the discharge side If there is no drain trap then air will be drawn in from the drain pipe and the waste water splashed around giving...

Страница 74: ...ne does not lose any pressure Maybe the gas leak is supposed to be located in the indoor unit itself Source of Problem and Remedial Action The system was pressurized from the liquid pipe side and the gas pipes were therefore not pressurized The system was then left under pressure for 24 hours but during that time gas leaked through into the gas pipes due to internal leaks within the solenoid and c...

Страница 75: ...should be installed such that branches meet the main pipe either horizontally or vertically at an angle of exactly 90 degrees 2 Header branch pipes The Header branch pipes is a lateral flow pipe and should be fitted so as to allow horizontal branch fittings Vertical or sloping fitting is not permissible Main Points Reasons for using refrigerant branch kit Fittings of Line branch pipes or Header br...

Страница 76: ...perature to vary thus the pipes have expanded and contracted which places stress on soldered parts Cracks have formed because of repeated expansion and contraction Remedial Action Fit the pipe with a loop as shown in the below drawing Main Points Take thermal expansion and contraction along the spline into consideration when installing pipe supports For Your Reference Expansion m Full length Coeff...

Страница 77: ... selected cooling with the cool heat selector Cause and Remedial Action The transmission wiring between the cool heat selector and the outdoor unit is too close to a high voltage wire An induced voltage is therefore being impressed on the transmission wiring which is causing a heating cooling malfunction in the outdoor unit PC board Bypassing the transmission wiring will allow the unit to function...

Страница 78: ...ller is OFF 2 The central remote controller or unified ON OFF controller or indoor unit is not wired to the centralized control line F1 F2 Remedial Action Supply power to either the central remote controller or unified ON OFF controller Wire the central remote controller or unified ON OFF controller or indoor unit to the centralized control line Main Points When communications with the central rem...

Страница 79: ... the master controller inside the central remote controller is disconnected Remedial Action Set a centralized control group No for each indoor unit with the respective remote controllers Connect the connector for setting the master controller in one of the central remote controller Main Points If the setting for master controller has been changed reset the power to the unit at the ON OFF switch or...

Страница 80: ...reverberation under uniform conditions the unit has been measured in a dead room with results having been compiled in the below table The actual sound produced in unit operation can be determined from Table 1 Sound pressure rise due to room reverberation Higher than catalogue data Table 1 A B C Room interior detection Floor Mortar Linoleum tile Carpet Walls Mortar Plaster Fiberglass Saroncross fin...

Страница 81: ... produced by the unit in operation is 70 dB the indicated difference comes to 5 dB Using Table 3 we recommend you correct the operating noise by about 2 dB to 68 dB Table 3 Correcting the effect of faint noises Classification Environment Example Faint noises Note 2 Recommended operating noise on site I Non active places requiring silence Reception rooms libraries sitting rooms hospitals examining ...

Страница 82: ...spectively Since L1 L2 50 49 1 the corrective value is 2 5 therefore 50 2 5 52 5 dB Sample calculation 2 When sounds of 40 dB 38 dB 37 dB and 40 dB are placed in order of magnitude we obtain the following 40 dB 40 dB 38 dB 37 dB To start the difference between 40 dB and 40 dB is 0 therefore we take a corrective value of 3dB and obtain 40 3 43 dB The compounded sound of 43 dB and 38 dB has a 5 0 dB...

Страница 83: ...CU 5MX KHRP26K11T less than 100 Suction gas side Including insulator cap pipes and tapes Liquid side KHRP26K17T 100 or more Suction gas side Including insulator cap pipes and tapes Liquid sides CU 8 10MC CU 8 10MX KHRP26K18T less than 160 Suction gas side Including insulator cap pipes and tapes Liquid side KHRP26K37T 160 or more Suction gas side Including insulator cap pipes and tapes Liquid side ...

Страница 84: ... insulator cap pipes and tapes Liquid side KHRP26K17H 8 branch fitting 100 or more Suction gas side Including insulator cap pipes and tapes Liquid side CU 8 10MC CU 8 10MX KHRP26K18H 6 branch fitting less than 160 Suction gas side Including insulator cap pipes and tapes Liquid side KHRP26K37H 8 branch fitting 160 or more Suction gas side Including insulator cap pipes and tapes Liquid side ...

Страница 85: ...y with model For details refer to system reference materials Line and Header branch pipes 1 Line branch pipes Gas line and liquird line branch pipe If the selected building pipe differs form the branch pipe in size cut the conneciton with a pipe cutter as shown below Install the branch pipe either vertically or horizontally Insulate the branch pipe as described in the kit installation manual Outdo...

Страница 86: ...pipe cutter as shown below Fit a stop end on all open branch pipe connections not in use Install the branch pipe horizontally Insulate the branch pipe as described in the kit installation manual Notes Install the Line branch pipes horizontally or vertically keeping it sithin a 30 angle when installed horizontally Install the Header branch pipes so that it branches horizontally Do not used a T join...

Страница 87: ...CS PM CS RM Refrigerant pipe connection port diameters mm Model Gas Liquid CS 20 25 32 40LM φ12 7 φ6 4 CS 20 25 32 40UM CS 25 32 40DM CS 20 25 32 40JM CS 20 25 32 40FM CS 40 50EM CS 32TM CS 25 32 40KM CS 20 25 32 40PM CS 20 25 32 40RM CS 50 63 80LM φ15 9 φ9 5 CS 50 63 80UM CS 63DM CS 50 63JM CS 50 63 80FM CS 63 80 100EM CS 63TM CS 50 63KM CS 50 63PM CS 50 63RM CS 125LM φ19 1 CS 100 125UM CU 100 12...

Страница 88: ...Appendix Check Points in Installing UM Series PACD011001G2 PACD011004G3 88 Urban Multi Inverter MX1 Series 8 3 2 Outdoor Unit CU 5MX ...

Страница 89: ...PACD011001G2 PACD011004G3 Appendix Check Points in Installing UM Series Urban Multi Inverter MX1 Series 89 CU 8 10MX ...

Страница 90: ...Appendix Check Points in Installing UM Series PACD011001G2 PACD011004G3 90 Urban Multi Inverter MX1 Series CU 5MC ...

Страница 91: ...PACD011001G2 PACD011004G3 Appendix Check Points in Installing UM Series Urban Multi Inverter MX1 Series 91 CU 8 10MC ...

Страница 92: ...lling UM Series PACD011001G2 PACD011004G3 92 Urban Multi Inverter MX1 Series 8 4 Locating Outdoor Units Be careful to allow sufficient intake space and maintenance space 8 4 1 Single Unit Installation 8 4 2 Multiple Units in Series ...

Страница 93: ... No 1 and pattern No 2 is as follows Front side 1500 mm Intake side 500 mm Lateral Unlimited 2 If exceeding the above wall height add h1 2 and h2 2 to the front and intake side maintenance space as shown in the drawing on the right 3 Determine site space in accordance with corridors and air draft and select a pattern from those shown here ...

Страница 94: ... and national codes Fit the power supply wiring with a fuse and a switch After wiring work check power to the equipment shuts OFF when switch is shut OFF WIRING OUTLINE Notes 1 The size of power supply wiring must comply with the applicable national and local codes 2 Allowable length of transmission wiring is as follows z Max 1000m Total wiring length 2000m Wiring specification Connect the wiring ...

Страница 95: ...ISSION 1 Series wiring 2 Bus type wiring Can be branched up to 16 branshings Example of 3 branchings 3 Star type wiring Can be branched up to 16 branchings Example of 3 branchings Notes 1 No branching is allowed after branching 2 Use a relay terminal board field supplied to branch more than 3 control wirings from the same terminal board ...

Страница 96: ...DOOR UNIT AND OUTDOOR UNIT Note Do not connect the power supply wiring 220 to 240V to the control terminal strip If connected by mistake it may damage or burn electrical parts of optional controllers for centralized control and indoor unit It may result in serious danger Be sure to check wirings before turning the power ON ...

Страница 97: ...n check the following items Check item Check method and criterion Pass Fail 1 Check drain piping is properly sloped Drain piping gradient should be 1 100 or more Add water to one of the indoor units and check for leaks and blockages in the system Check the same amount of water you added is drained out 2 Check wiring connections Check wiring is as shown on the system diagram Check wiring is as show...

Страница 98: ...nt from the service ports Indoor unit model number 1 2 3 4 5 6 7 8 Location Additional charge kg Total length of liquid line piping φ 12 7 1 m 0 1 Total length of liquid line piping φ 9 5 0 05 m 0 05 Total length of liquid line piping φ 6 4 0 025 m 0 025 Example of refrigerant branch with Line branch pipes a φ 12 7 30m b φ 12 7 5m c φ 12 7 5m d φ 12 7 5m e φ 9 5 3m f φ 9 5 2m g φ 9 5 5m h φ 9 5 5m...

Страница 99: ...r System name Outdoor unit Indoor unit Field Settings Location Model name Serial No Location Model Serial No Centralized control group No A B C D E F G H I J K L M N O P C H SELECT MODE 1 Remarks Installed by Checked by TC IND MASTER SLAVE H M L H M L H M L kg C H SELECT SS1 TE Low noise operation Sequential start IN D OUT D Deforost setting ON OFF Additional refrigerant charge ON OFF M052 ...

Страница 100: ...it etc NO Bad Bad No 2 MΩ Bad Room A Room E Room I Room M Room A Room E Room I Room M Room A Room E Room I Room M Room A Room E Room I Room M Room A Room E Room I Room M Room A Room E Room I Room M G B G B G B G B Room B Room F Room J Room N Room B Room F Room J Room N Room B Room F Room J Room N Room B Room F Room J Room N Room B Room F Room J Room N Room B Room F Room J Room N G B G B G B G B Ro...

Страница 101: ...0 of rated voltage Temp difference At cooling 9 13 C At heating 15 20 C Right direction None ACTUAL MEASUREMENT V V Good Good A C C INV INV kg cm2 INV kg cm2 A INV STD kg cm2 STD kg cm2 A STD No 1 C No 1 C No 1 Good Bad No 1 C No 1 C No 2 Good Bad Bad Bad Hz Room A Room E Room I Room M Room A Room E Room I Room M Room A Room E Room I Room M Room A Room E Room I Room M Room A Room E Room I Room M R...

Страница 102: ...Appendix Check Points in Installing UM Series PACD011001G2 PACD011004G3 102 Urban Multi Inverter MX1 Series ...

Страница 103: ...PACD011001G2 PACD011004G3 Appendix Check Points in Installing UM Series Urban Multi Inverter MX1 Series 103 1 ...

Страница 104: ...Appendix Check Points in Installing UM Series PACD011001G2 PACD011004G3 104 Urban Multi Inverter MX1 Series ...

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