Mitsubishi Heavy Industries SRK63ZE-SS Page 26 Tech Manual Download

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(12) Indoor fan motor protection

When the air conditioner is operating and the indoor fan motor is turned ON, if the indoor fan motor has operated at 300 rpm or

under for more than 30 seconds, the unit enters first in the stop mode and then stops the entire system.

(13) Serial signal transmission error protection

(a)

Purpose:

Prevents malfunction resulting from error on the indoor

↔

outdoor signals.

(b)

Detail of operation:

If the compressor is operating and a serial signal cannot be received from the indoor control with

outdoor control having serial signals continuously for 1 minute and 55 seconds, the compressor is

stopped.

After the compressor has been stopped, it will be restarted after the compressor start delay if a serial

signal can be received again from the indoor control.

(14) Rotor lock

If the motor for the compressor does not turn 1/12 revolution 0.044 seconds after it has been started, it is determined that a

compressor lock has occurred and the compressor is stopped.

(15) Outdoor fan motor protection

If the outdoor fan motor has operated at 75rpm or under for more than 30 seconds, the inverter and fan motor are stopped.

Summary of Contents for SRK63ZE-SS

Page 1: ...INVERTER WALL MOUNTED TYPE ROOM AIR CONDITIONER Split system air to air heat pump type SRK20ZG S SRK25ZG S SRK35ZG S SRK50ZG S Manual No 06 SRK T 060 ...

Page 2: ... 3 Power blackout auto restart function 13 4 4 Custom cord switching procedure 13 4 5 Flap and louver control 14 4 6 3D auto operation 15 4 7 Timer operation 16 4 8 Installation location setting 16 4 9 Outline of heating operation 17 4 10 Outline of cooling operation 18 4 11 Outline of automatic operation 18 4 12 Protective control function 19 5 APPLICATION DATA 24 5 1 Selection of location for in...

Page 3: ...n of interface kit 54 7 7 Wired remote control 59 7 8 Insatallation of wired remote control 60 7 9 Setting functions using the wired remote control 61 7 10 Super link adapter 65 7 11 Operation permission prohibition control 67 7 12 External control remote display control of input signal 68 8 REFRIGERANT PIPING INSTALLATION SERVICING MANUAL FOR AIR CONDITIONERS USING R410A 69 8 1 Outline 69 8 2 Ref...

Page 4: ...ol flap louver The flap louver can be automatically controlled by operating wireless remote control Flap swing The flaps swing up and down successively Louver swing The louvers swing left and right successively 3D auto operation Fan speed and air flow direction are automatically controlled allowing the entire room to be efficiently conditioned Memory flap Once the flap louver position is set the u...

Page 5: ...afety equipment O D mm in Liquid line φ6 35 1 4 Gas line φ9 52 3 8 Connecting method Flare connecting Attached length of piping Liquid line 0 4 m Gas line 0 33 m Insulation Necessary Both sides Drain hose Connectable Power source cord 2 m 3 cores with Earth Size Core number 1 5 mm2 4 cores Including earth cable Connection wiring Connecting method Terminal block Screw fixing type Accessories includ...

Page 6: ...en 3D AUTO Green Safety equipment O D mm in Liquid line φ6 35 1 4 Gas line φ9 52 3 8 Connecting method Flare connecting Attached length of piping Liquid line 0 4 m Gas line 0 33 m Insulation Necessary Both sides Drain hose Connectable Power source cord 2 m 3 cores with Earth Size Core number 1 5 mm2 4 cores Including earth cable Connection wiring Connecting method Terminal block Screw fixing type ...

Page 7: ...een 3D AUTO Green Safety equipment O D mm in Liquid line φ6 35 1 4 Gas line φ9 52 3 8 Connecting method Flare connecting Attached length of piping Liquid line 0 4 m Gas line 0 33 m Insulation Necessary Both sides Drain hose Connectable Power source cord 2 m 3 cores with Earth Size Core number 1 5 mm2 4 cores Including earth cable Connection wiring Connecting method Terminal block Screw fixing type...

Page 8: ...ow HI POWER Green 3D AUTO Green Safety equipment O D mm in Liquid line φ6 35 1 4 Gas line φ12 7 1 2 Connecting method Flare connecting Attached length of piping Liquid line 0 4 m Gas line 0 33 m Insulation Necessary Both sides Drain hose Connectable Power source cord 2 m 3 cores with Earth Size Core number 1 5 mm2 4 cores Including earth cable Connection wiring Connecting method Terminal block Scr...

Page 9: ... cycle Max 7 times h Inching prevention 5 minutes Max 4 times h Inching prevention 10 minutes ON and OFF interval Max 3 minutes Outdoor air temperature Upper lower limits Vertical height difference between outdoor unit and indoor unit Max 10m Outdoor unit is higher Max 10m Outdoor unit is lower Max 25m Max 15m Outdoor unit is higher Max 15m Outdoor unit is lower Item Models Unit mm Piping hole ø65...

Page 10: ...nal 124 34 6 2 0 2 0 42 7 100 3 15 640 14 Model SRC50ZG S Unit mm 2 Outdoor unit Models SRC20ZG S 25ZG S 35ZG S 2 16 12 Drain holes ø20 138 4 4 0 61 9 18 9 165 1 510 104 9 439 1 111 4 99 4 349 5 313 1 43 1 290 12 50 350 23 5 312 5 14 33 5 4 0 42 5 95 9 14 540 780 Service valve Liquid Flare connection ø6 35 1 4 Service valve Gas Flare connection ø9 52 3 8 Terminal block ...

Page 11: ... Accumulator Service valve Gas Electronic expansion valve Piping Gas ø9 52 Model SRK50ZG S Outdoor unit Indoor unit Room temp sensor Heat exchanger Flare connection Heat exchanger sensor Piping Liquid ø6 35 Check joint 4 way valve Service valve Liquid Flare connection Discharge pipe temp sensor Cooling cycle Heating cycle Outdoor air temp sensor Heat exchanger Heat exchanger sensor Compressor Capi...

Page 12: ...r How to obtain the cooling and heating capacity Example The net cooling capacity of the model SRK20ZG S with the piping length of 15m indoor wet bulb temperature at 19 0 C and outdoor dry bulb temperature 35 C is Net cooling capacity 2000 0 975 1 0 1950 W Length 15m Factor by air temperatures Piping length m Cooling Heating 7 1 0 1 0 10 0 99 1 0 15 0 975 1 0 20 0 965 1 0 25 0 95 1 0 SRK20ZG S Coo...

Page 13: ...V 15A F R IN C 2 S IN N P POWER TRANSISTOR U V W RD WH BK CM CND Th4 Th5 Th6 CNA FMO CNB 20S EEV DS L G G CNE BK BL BR Y WH LB Y G RD Color symbol Black Blue Brown Yellow White Light blue Yellow Green Red Meaning of marks Symbol Parts name Symbol Parts name Symbol Parts name CM F FMI FMO SM LM1 Th1 Th2 Compressor motor Fuse Fan motor Indoor Fan motor Outdoor Flap motor Louver motor L LM2 Louver mo...

Page 14: ...Red Meaning of marks Symbol Parts name Symbol Parts name Symbol Parts name CM F FMI FMO SM LM1 Th1 Th2 Compressor motor Fuse Fan motor Indoor Fan motor Outdoor Flap motor Louver motor L LM2 Louver motor R Room temp sensor Heat exch sensor Indoor unit Th3 Th4 Th5 Th6 ZNR 20S EEV DS Humidity sensor Heat exch sensor Outdoor unit TB Terminal block Outdoor air temp sensor Discharge pipe temp sensor Var...

Page 15: ...parts are shown OPERATION MODE select button Each time the button pushed the indicator is switched over in turn ON OFF luminous button Press for starting operation press again for stopping HI POWER ECONO button This button changes the HIGH POWER ECONOMY mode AIR FLOW UP DOWN button This button changes the air flow up down mode This button changes the air flow left right mode SLEEP button This butt...

Page 16: ...e cancelled a Timer settings b High power operations Notes 1 The power blackout auto restart function is set at on when the air conditioner is shipped from the factory Consult with your dealer if this function needs to be switched off 2 When power failure ocurrs the timer setting is cancelled Once power is resumed reset the timer 3 If the jumper wire J12 AUTO RESTART is cut auto restart is disable...

Page 17: ...rocomputer the flap or louver will automatically be set at this angle when the next operation is started 5 When not operating The flap returns to the position of air flow directly below when operation has stopped COOL DRY Remote control display HEAT Angle of Flap from Horizontal Approx 10 Approx 20 Approx 20 Approx 35 Approx 30 Approx 50 Approx 45 Approx 60 Approx 60 Approx 70 Swing Flap stopped C...

Page 18: ...etermined according to the room temperature and setting temperature 2 During DRY Operation including auto DRY operation At cooling Air flow selection Operation mode AUTO HI MED LO At heating Room temp Setting temp 5 C Room temp Setting temp _ 5 C Setting temp Room temp 5 C Setting temp Room temp _ 5 C HIGH POWER AUTO HI MED LO HIGH POWER AUTO Flap Louver Cooling Up down Swing Heating Wide fixed Ce...

Page 19: ... it is not toward the side walls If you set the remote control s installation position keep it so that the air flow is within the range shown in the following figure 1 Setting 1 If the air conditioning unit is running press the ON OFF button to stop The installation location setting cannot be made while the unit is running 2 Press the AIR FLOW UP DOWN button and the AIRFLOW LEFT RIGHT button toget...

Page 20: ...efrosting operation a Starting conditions Defrosting operation can be started only when all of the following conditions are met 1 After start of heating operation When it elapsed 45 minutes 35 50 type 35 minutes Accumulated compressor operation time 2 After end of defrosting operation When it elapsed 45 minutes 35 50 type 35 minutes Accumulated compressor operation time 3 Outdoor unit heat exchang...

Page 21: ...e The unit checks the room temperature and the outdoor air temperature determines the operation mode and then begins in the automatic operation Heating Dehumidifying Cooling Room temperature C Outdoor temperature C 2 The unit checks the temperature every hour after the start of operation and if the result of check is not same as the previous operation mode changes the operation mode 3 When the uni...

Page 22: ...owever when the thermo becomes OFF the speed is reduced to 0 rps c Reset conditions When either of the following condition is satisfied 1 When the outdoor air temperature becomes 40ºC or less 2 When the inverter command speed is 0rps 3 Cooling low outdoor temperature protective control I a Operating conditions When the outdoor air temperature sensor Th5 is 22ºC or lower continues for 30 seconds wh...

Page 23: ...hanger sensor Th2 c Detail of operation A B C D Indoor unit heat exchanger temperature C 4rps 1 8rps 2 8rps 2 4rps 1 0rps After lapse of 20 sec or over 3 After lapse of 20 sec or over 3 After lapse of 20 sec or over 3 lower limit speed 20 35 rps Example Fuzzy Notes 1 When the indoor unit heat exchanger temperature is in the range of B C ºC the speed is reduced by 4 rps at each 20 seconds 2 When th...

Page 24: ...s less than 40 22 rps the command speed is forcibly set at 40 22 rps However when the thermo becomes OFF the speed is reduced 0 rps 2 Inching prevention control is activated and inching prevention control is carried out with the minimum speed set at 40 22 rps c Reset conditions When the either of the following condition is satisfied 1 When the outdoor air temperature sensor Th5 becomes 6ºC or high...

Page 25: ...arts again within 1 hour but there is no start at the third time 8 Current safe a Purpose Current is controlled not to exceed the upper limit of the setting operation current b Detail of operation Input current to the converter is monitored with the current sensor fixed on the printed circuit board of the outdoor unit and if the operation current value reaches the limiting current value the outdoo...

Page 26: ...nal cannot be received from the indoor control with outdoor control having serial signals continuously for 1 minute and 55 seconds the compressor is stopped After the compressor has been stopped it will be restarted after the compressor start delay if a serial signal can be received again from the indoor control 14 Rotor lock If the motor for the compressor does not turn 1 12 revolution 0 044 seco...

Page 27: ...ective installment execution can be the cause of electric shocks and fires Accurately connect wiring using the proper cable and insure that the external force of the cable is not conducted to the terminal connection part through properly securing it Improper connection or securing can result in heat generation or fire Take care that wiring does not rise upward and accurately install the lid servic...

Page 28: ...y of flammable gas leakage A place exposed to strong wind In a salt laden atmosphere or a place where the generation of oil mist vapor or fume is expected f In heating operation snow deposit on the heat exchanger of outdoor unit must be prevented for keeping the normal performance capacity 1 Snow hood on outdoor unit as in drawing will reduce the frequency of defrost operation When installing the ...

Page 29: ...o rear Cut off the sleeve collar that can be seen from beneath the unit Wall thickness 1 5 cm Indoor side Outdoor side Turn to tighten Paste View of sleeve when installed Inclined flange Sealing plate Sleeve Indoor side Outdoor side Look for the inside wall structures Intersediate support or pillar and firaly install the unit after level surface has been checked Mating mark for level surface 450 I...

Page 30: ... type 05 300 500 volts R Natural and or synth rubber wire insulation N Polychloroprene rubber conductors insulation R Standed core 4or5 Number of conductors G One conductor of the cable is the earth conductor yellow green 1 5 Section of copper wire mm2 Matters of special notice when piping from left or center rear of the unit Piping Drain hose Tape only the portion that goes through the wall Alway...

Page 31: ...hose c Fixing of indoor unit How to remove the indoor unit from the installation board 1 Push up at the marked portion of the indoor unit base lower latch and slightly pull it toward you both right and left hand sides The indoor unit base lower latch can be removed from the installation board 2 Push up the indoor unit upward So the indoor unit will be removed from the installation board Remove it ...

Page 32: ...ner to fix the valve Remove the flared nuts on both liquid and gas sides Remove the flared nuts on both liquid and gas sides Install the removed flared nuts to the pipes to be connected then flare the pipes Dimension A Liquid side ø6 35 9 1 mm Gas side ø9 52 13 2 mm ø12 7 16 6 mm Press Remove Remove Do not turn Spanner for fixing the piping Torque wrench Specified torquing value Liquid side ø6 35 ...

Page 33: ...ifically for R410A Please use an anti reverse flow type vacuum pump adapter so as to prevent vacuum pump oil from running back into the system Oil running back into an air conditioning system may cause the refrigerant cycle to break down Additional refrigerant charge 20 25 35 type Additional refrigerant charge is not required at all 50 type When refrigerant piping exceeds 15m conduct additional re...

Page 34: ...door side Cooling 27 C DB 19 C WB Heating 20 C DB Outdoor side Cooling 35 C DB 24 C WB Heating 7 C DB 6 C WB Low pressure MPa Temp difference between return air and supply air C High pressure MPa 220 230 240V b When manipulating the remote control mounted on a wall Make sure that it works normally i e transmission reception signal is audible before mounting Notes 1 The remote control is correctly ...

Page 35: ...ant service valve open 3 Troubleshooting procedure If the air conditioner does not run at all If the air conditioner does not run at all diagnose the trouble using the following troubleshooting procedure If the air conditioner is running but breaks down proceed to troubleshooting step 4 Important When all the following conditions are met we say that the air conditioner will not run at all 1 The RU...

Page 36: ...uble and perform an operation check The air conditioning system is operating normally Replace the faulty component then perform an operation check Identify the faulty component by using the check procedure corresponding to the content of the trouble Using the Service Mode access the self diagnosis displays generated in the past Using the Service Mode access the stop history due to protection contr...

Page 37: ...time flash Keeps flashing The inverter output current compressor motor current exceeds the set value during compressor start The air conditioner stops Compressor locking open phase on compressor output shortcircuit on power transistor closed service valve Current Cut 1 time flash ON When there is an emergency stop caused by trouble in the outdoor unit or the input current value is found to be lowe...

Page 38: ... stop occurred when the air conditioning system performed protective stops etc in the past Even if stop data alone are generated the system restarts automatically After executing the stop mode while the display is normal the system restarts automatically Data for up to 10 previous occasions are stored Data older than the 10th previous occasion are erased Important In cases where transient stop dat...

Page 39: ...e remote control information at the time the error code was displayed in the past Displays the outdoor air temperature sensor temperature at the time the error code was displayed in the past Displays the outdoor heat exchanger sensor temperature at the time the error code was displayed in the past Displays the discharge pipe sensor temperature at the time the error code was displayed in the past C...

Page 40: ...DC 280 V exceeds 350 V When it is judged that the power transistor was damaged at the time the compressor started When it is judged that the power transistor was damaged at the time the compressor started When PWM calculation results of 0 continue for 3 minutes or longer When PWM calculation results of 90 and an input current lower than the set value continue for 3 minutes or longer When the power...

Page 41: ... Protective control operation Indoor unit fan motor is abnormal Discharge pipe sensor is abnormal anomalous stop Indoor heat exchanger sensor is abnormal anomalous stop Outdoor heat exchanger sensor is abnormal anomalous stop Anti condensation control Anti frost control High pressure control Compressor overheating protection control Refrigeration cycle system protective control 16 rps or higher Ph...

Page 42: ...ber of times in If no is displayed the error display shows that the trouble has occurred once Notes 3 Automatic Recovery Does not occur Automatic recovery occurs d Remote control information tables 1 Operation switching RUN light Operation switching Display pattern when in service mode Operation switching when there is an abnormal stop 0 1 2 3 4 AUTO DRY COOL FAN HEAT 2 Fan speed switching TIMER l...

Page 43: ...6 46 56 66 76 86 96 57 47 37 27 17 7 7 17 27 37 47 57 67 77 87 97 58 48 38 28 18 8 8 18 28 38 48 58 68 78 88 98 59 49 39 29 19 9 9 19 29 39 49 59 69 79 89 99 No does not sound If no data are recorded error code is normal the display for each sensor becomes as shown below Sensor name Room temperature sensor temperature Indoor heat exchanger sensor temperature Outdoor air temperature sensor temperat...

Page 44: ... 94 114 134 56 36 16 16 36 56 76 96 116 136 58 38 18 18 38 58 78 98 118 138 No does not sound If no data are recorded error code is normal the display for each sensor becomes as shown below Sensor name Discharge pipe sensor temperature Sensor value displayed when the error code is normal 64 C Example Discharge pipe temperature 122ºC In the case of discharge pipe data multiply the reading value by ...

Page 45: ...eat exchanger sensor temperature on fourth previous occasion Remote control information on fourth previous occasion Outdoor air temperature sensor temperature on fourth previous occasion Outdoor heat exchanger sensor temperature on fourth previous occasion Discharge pipe sensor temperature on fourth previous occasion Error code on fifth previous occasion Room temperature sensor temperature on fift...

Page 46: ...7 120 1 9 55 14 125 1 6 60 12 130 1 4 65 10 135 1 3 Discharge pipe sensor temperature characteristics Indoor fan motor error Defective fan motor connector poor connection defective PCB Is connector connection good YES NO NO Is the output of the indoor unit s printed circuit board normal Normal NO YES YES Correct connector connection Is DC fan motor resistance value good Replace indoor PCB Replace ...

Page 47: ...insufficient gas refrigerant Does compressor operation Is capacitor for compressor normal Replace compressor Replace heat exchanger sensor Insufficient gas Is refrigerant amount normal Is heat exchanger sensor resistance value good Is connector for compressor connection good Does trouble persist after charging gas Clogged capillary tube or strainer defective EEV etc Replace capacitor for compresso...

Page 48: ...mission Wiring error including power cable defective indoor outdoor unit PCB Does error persist after power reset Are the lines connecting the indoor and outdoor units connected normally Is DC 0 Approx 12V detected between 2 3 terminals on indoor unit terminal block YES YES NO NO YES NO Trouble by transient cause not unit trouble Correct improper wire connection on indoor outdoor unit Defective in...

Page 49: ...es in the Dry region 12 Disconnected wire Humidity reading is 0 Operates in the Dry region 1 and 2 are short Humidity reading is 100 Operates in the Cooling region circuited Disconnected wire Short Circuit Remark Do not perform a continuity check of the humidity sensor with a tester If DC current is applied it could damage the sensor Humidity sensor element Connector CnF Humidity sensor assembly 8...

Page 50: ... NO NO NO b Indoor unit fan motor check procedure This is a diagnostic procedure for determining if the indoor unit s fan motor or the circuit board is broken down 1 Indoor unit printed circuit board output check a Turn off the power b Remove the front panel then disconnect the fan motor lead wire connector c Turn on the power If the unit operates when the ON OFF button is pressed if trouble is de...

Page 51: ...ne 1 display it is basically normal 1 Is remote control normal YES Again pushing operating switch Operating the unit NO Does unit ON OFF button operates Operating the unit NO NO YES YES Remote control defects Abnormality is not found Replace the display Control problem on main unit Is the unit operable with remote control Defective remote control NO YES Normal ...

Page 52: ...onic expansion valve when the valve opening is being changed Red to White Red to Orange Brown to Yellow Brown to Blue Normal if there is approximately DC 5 V 10 seconds after the power asupply is turned on Color symbol BK RD WH Y GN Black Red White Yellow Green Inspection of input to PCB Check the voltage between terminals 1 2 on the terminal block It is normal if AC 220 230 240V is detected Inspe...

Page 53: ... swing in the range of DC 0 Approx 12V 1 For about 50 seconds After being switched on the will be a delay of approximately one minute depending on the conditions Use a tester with a needle indicator for the inspection Do not use a digital tester Check in the AC 300 volt range 1 If there is a self diagnosis display inspect the compressor system burns wiring mistakes etc If no problems are found che...

Page 54: ...hen immediately retighten it after observing that gas is blow out from the loosened portion e Open the valve 1 and 3 after discharging air from the charge hose A then the liquid refrigerant begins flowing from the cylinder into the unit Be sure to erect the refrigerant cylinder upright to let liquid refrigerant flow into the unit f When refrigerant has been charged into the system to some extent r...

Page 55: ...devices Name Type Wired remote control RC E1R Super link adapter SC AD ER Center console SC SLA1 ER SC SLA2A ER SC SLA3 ER 7 3 Exterior dimensions 120 135 1300 29 18 2 83 5 7 4 Circuit board component layout Indoor unit connection terminals Jumper wire Address setting rotary switch Wired remote control and Super link adapter terminal block CNT terminal ...

Page 56: ... ON or OFF For users who want to exercise central control together with a package air conditioning system such as an office Remote start and stop and remote monitoring Interface kit SC BIK E Super link adapter SC AD ER Center console SC SLA1 ER SC SLA2A ER SC SLA3 ER Wired remote control RC E1R 1 The wireless remote control supplied with one unit cannot be used If it is necessary to control each r...

Page 57: ...r unit q Remove the air inlet panel lid and front panel w Take the indoor control board out of the control box e There are five terminals respectively marked with CNA CND CNI CNK and CNL for the indoor control boad In connecting an interface connect to the respective terminals securely with the connection harness supplied with an optional Interface connection kit SC BIK E r House the indoor unit c...

Page 58: ...rought in from the top or from the back Use side cutters etc to cut out the thin knockouts used to run wires into the case Connecting the interface and the indoor unit Names of each part of the interface unit Jumpers Indoor unit connection terminals Clamp for fastening indoor unit connection cables Interface board CNT terminal Clamp for fastening the wired remote control connection cable Either th...

Page 59: ... the indoor unit s address is displayed when the Air Conditioner No button on the remote control is pressed so check if the indoor unit addresses is displayed in the remote control s display when the and buttons are pressed to select each unit Wired remote control connection 䢇 Control of multiple units with a remote control Cautions when extending the connection cable length Cut jumper wire J2 on ...

Page 60: ... the jumper wire J3 䢇 XR1 4 are for the DC 12V relay 䢇 XR5 is a DC 12 24 or AC 220 240V relay 䢇 CNT connector local maker model Pulse input J1 cut Pulse input J1 cut Input Output Operation output Heating output Malfunction output ON output XR1 ON during air conditioner operation ON output XR2 ON during heating operation ON output XR3 ON during compressor operation ON output XR4 ON during an abnorm...

Page 61: ... screws M4 screws procured locally 3Mount the upper case to the lower case 1Mount the interface unit s upper case 2Mount the mounting bracket to the interface unit using the tapping screws supplied with the unit 3Mount the mounting bracket to a wall surface etc using the wood screws provided Interface installation If the unit is mounted directly to a wall Recessing the unit in a wall Mounting with...

Page 62: ...TO HI POWER or ECONO cannot be selected SET switch This switch is used to apply the timer operation setting This switch is also used to make silent mode operation settings Central control display Displayed when the air conditioning system is controlled by the option controller Timer operation display Displays the settings related to timer operation AIR CON No Air conditioning system No switch Disp...

Page 63: ...Upper Lower Lower case Upper Lower Lower case Upper Lower Board Wiring X Y Z Red White Black Upper case Remote control cord Electrical box Not included Upper Lower Cable outlet Lower case Upper Lower Cable outlet Cut off with a knife or the like thin walled parts intended for screw holes and then fix it with screws Two M4 screws Head diameter must be 8mm not included This side is not grounded Eart...

Page 64: ... 08 09 10 Function number A Default setting Hi CEILING SET FILTER SIGN SET POSITION EXTERNAL INPUT SET ROOM TEMP OFFSET FAN CONTROL FREEZE PREVENT TEMP FREEZE PREVENT CONTROL Heating room temperature offset Heating fan control Louver control setting STANDARD Mild mode Hi CEILING 1 Powerful mode NO DISPLAY AFTER 180H AFTER 600H AFTER 1000H 1000H STOP FIX 1 OF 4 4 positiion stop IN MOTION Free stop ...

Page 65: ...ll be displayed one by one Select a desired function 3 Press the SET button The screen display will be switched as follows SETTING Setting C ex AUTO RUN ON 4 Press either or button A list of Settings C will be displayed one by one Select your desired setting 5 Press the SET button The selected setting is displayed for 2 seconds then followed by SET COMPLETE and the function setting process is com ...

Page 66: ...hen followed by SET COMPLETE and the function setting process is completed Then the screen display will be switched to Function number A Function description B so if you want to continue to set another function repeat the stepa as explained above To finish the function setting process please proceed to Step 8 8 Press AIR CON No button The screen display will go back to the indoor unit selection sc...

Page 67: ... temperature is set at a value lower than the upper limit value The set temperature is transmitted 2 If the lower limit is set q When in an operating mode other than the heating mode if a temperature that is lower than the lower limit value is set from the remote control The lower limit value is transmitted However the remote control display does not approach the lower limit value but remains on t...

Page 68: ...and transmits the inspection codes to the Super link option d A maximum of 16 units can be controlled if in the same operation mode 2 Wiring connection diagram SC AD ER LED R LED G A B X Y Z X Y Z Blue Blue Red White Black Master Slave address Network address 00 47 Connection to super link total length of wires 1000 m maximum 0 75 2 0 mm2 2 core Connection to the terminal block for interface kit p...

Page 69: ...ashing Normal communication Open circuit at the wired remote control signal wire X or Z light off light off Short circuit at the wired remote control signal wire between X Z Power source of the indoor wired remote control is out of order Open circuit at the super link signal wire A or B 1 flashing flashing Short circuit at the super link signal wire between A B The super link circuit is out of ord...

Page 70: ...signal b The air conditioner operation is stopped when the CnT input is changed from ON to OFF 4 When the operation permission prohibition mode is set to effective by the indoor function setting selected by the remote control the operation depends on 1 above When the jumper wire J3 is short circuited Normal operation is enable when shipping When CnT input is set to ON the operation starts and if t...

Page 71: ... 12V relay provided by the customer is outputted during operation Heating output Power to engage DC 12V relay provided by the customer is outputted during the heating operation Compressor OPERATION output Power to engage DC 12V relay provided by the customer is outputted while the com pressor is operating MALFUNCTION output When any error occurs the power to engage DC 12V relay provided by the cus...

Page 72: ...es Pseudo azeotropic characteristics R410A is a pseudo azeotropic mixed refrigerant composed of two constituents R32 and R125 Quasi azeotropic condition refers to a state in which the dew point curve and boiling point curve gas liquid equilibrium curves pressure constant almost lie on top of each other and a multi constituent refrigerant having this chemical characteristic incurs less composition ...

Page 73: ...oisonous gas may occur 5 When an air conditioning system charged with a large volume of refrigerant e g multi type air conditioner is installed in a small room it is necessary to exercise care so that even when refrigerant leaks its concentration does not exceed the marginal level If the refrigerant gas leakage occurs and its concentration exceeds the marginal level an oxygen starvation accident m...

Page 74: ...nce outer diameter Minimum joint thickness diameter of copper pipe jointed mm mm 1 4 6 35 0 50 3 8 9 52 0 60 1 2 12 70 0 70 5 8 15 88 0 80 8 2 2 Processing of piping materials When performing the refrigerant piping installation care should be taken to ensure that water or dust does not enter the pipe interior that no other oil other than lubricating oils used in the installed air conditioner is us...

Page 75: ...e 1 4 6 35 0 8 0 0 5 1 0 1 5 1 5 2 0 3 8 9 52 0 8 0 0 5 1 0 1 5 1 5 2 0 1 2 12 70 0 8 0 0 5 1 0 1 5 2 0 2 5 5 8 15 88 1 0 0 0 5 1 0 1 5 2 0 2 5 Table 6 Dimensions related to flare processing for R22 Nominal Outer diameter Thickness A mm diameter mm mm Flare tool for R410A Conventional flare tool Clutch type Clutch type Wing nut type 1 4 6 35 0 8 0 0 5 0 5 1 0 1 0 1 5 3 8 9 52 0 8 0 0 5 0 5 1 0 1 0...

Page 76: ... and which contains less contaminants It is necessary to carefully treat store copper pipes so that they are not collapsed deformed or damaged Due care must also be exercised so that foreign matters such as dust and water do not enter the pipe interior A piping set s open end is sealed with a cap etc When storing it make sure that it is sealed securely When storing a cladded copper pipe or bare co...

Page 77: ...sing the connected parts As brazing is molten between the joined surfaces to yield high adhesive strength it is necessary to secure a wide enough space to be joined and also an adequate clearance between the joined surfaces Copper pipe joints minimum insertion depths outer pipe diameters and clearances between outer and inner pipe diameters are as shown in Table 10 In the case of bronze brazing fi...

Page 78: ...assium fluoride potas sium chloride and sodium fluoride to the borax boric acid compound Cautions 1 Remove the flux after brazing 2 When chlorine contained in the flux stays within the pipe the lubricating oil deteriorates So use a flux which does not contain chlorine 3 When adding water to the flux use water which does not contain chlorine e g distilled water or ion exchange water 4 Brazing As br...

Page 79: ...t cloth and 3 by means of heat absorbent 4 Movement during brazing Eliminate all vibration during brazing to protect brazed joints from cracking and breakage 5 Oxidation preventive In order to improve the brazing efficiency various types of antioxidant are available on the market However the con stituents of these are widely varied and some are anticipated to corrode the piping materials or advers...

Page 80: ...wo types of electronic balance for refrigerant charging are available one for 10kg cylinder and the other for 20kg cylinder Electronic balance for 10kg cylinder precision 2g Electronic balance for 20kg cylinder precision 5g Refrigerant is charged manually by opening closing the valve d Torque wrench for nominal diameters 1 2 and 5 8 Along with changes in flare nut sizes for enhanced pressure resis...

Page 81: ...g for refrigerant cylinder According to the charge hose s cap size a charge port with 1 2 UNF 20 threads per inch and corresponding packing are required j Gas leakage detector A high sensitivity gas leakage detector exclusive for HFC refrigerant is used In the case of R410A the detection sensitivity is about 23g per year 2 General tools a Vacuum pump b Torque wrench for 1 4 opposite side 17 mm for...

Page 82: ...re to make setting so that liquid can be charged When using a cylinder equipped with a siphon liquid can be charged without turning it upside down b Connect the gauge manifold s charge hose to the electronic balance s connecting port 3 2 c Open the refrigerant cylinder s valve and after opening the charging valve a little close it 1 2 d After making zero 0 adjustment open the charging valve and by...

Page 83: ...he indoor outdoor units Caution When storing the indoor unit piping in its original position be careful not to break the piping 2 Installing the unit a Proceed with the installation following the steps described in 8 3 2 New installation work 8 3 4 Replacing the unit Never use the existing refrigerant piping Use a brand new refrigerant piping 1 when replacing the air conditioner using the conventi...

Page 84: ...preventing function float switch moisture indicator drier and other accessory functions should be adjusted or replaced where necessary 4 Electrical circuit b Checking the accessories to the refrigerant recovering equipment 2 Preparations for recovering procedures a Installation of refrigerant recovering equipment Install the equipment in a place which satisfies the following requirements as much a...

Page 85: ...ccessories tools are required Shown below are standard accessories 1 Recovering cylinder Use a recovering cylinder designated by the equipment manufacturer A detachable cylinder must be such that it complies with the laws and regulations concerned Do not use an ordinary cylinder as a recovering cylinder Note 1 A cylinder available when R410A was purchased is a borrowed one Note 2 As a cylinder ava...

Page 86: ...piercing valve a A tool used to make a hole for recovery in the copper pipe when recovering R410A from equipment which has no port for charging or recovering gas Various types are available on the market and given various names b As the piercing edge tends to wear it is necessary to treat this valve as semi expendables c As vacuum rises air tends to be inhaled from the hole So care must be exercis...

Page 87: ...INVERTER WALL MOUNTED TYPE ROOM AIR CONDITIONER No 116 1 1A R Air Conditioning Refrigeration Systems Headquarters 16 5 2 chome Kounan Minato ku Tokyo 108 8215 Japan Fax 03 6716 5926 ...

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