Page 1 September 28, 2018 TECHNICAL MANUAL INVERTER PACKAGED AIR-CONDITIONERS (Split system, air to air heat pump type) HYPER INVERTER MICRO INVERTER WALL MOUNTED TYPE WALL MOUNTED TYPE Twin type Twin type SRK100VNXPZSX SRK100VNPZSX 100VSXPZSX 100VSPZSX 125VNXPZSX 125VNPZSX 125VSXPZSX 125VSPZSX Triple Type Triple type...
Page 2 '17 • PAC-T-257 TABLE OF CONTENTS 1. HYPER INVERTER PACKAGED AIR-CONDITIONERS ........2. MICRO INVERTER PACKAGED AIR-CONDITIONERS ........154 3. OPTION PARTS .....................191...
Page 3: Table Of Contents
'17 • PAC-T-257 1. HYPER INVERTER PACKAGED AIR-CONDITIONERS CONTENTS 1.1 SPECIFICATIONS ................1.2 EXTERIOR DIMENSIONS ..............10 (1) Indoor units ..................10 (2) Outdoor units ................... 11 (3) Remote control ................12 1.3 ELECTRICAL WIRING ................ 15 (1) Indoor units ..................15 (2) Outdoor units ...................
Page 4 '17 • PAC-T-257 1.9.4 Operation control function by the outdoor control ......73 (1) Determination of comressor speed (Frequency) ........73 (2) Compressor start control ..............73 (3) Compressor soft start control .............. 74 (4) Outdoor unit fan control ............... 75 (5) Defrost operation .................
Page 5: Specifications
'17 • PAC-T-257 1.1 SPECIFICATIONS Wall mounted type (SRK) SRK100VNXPZSX Model Item Indoor unit SRK50ZSX-S (2 units) Outdoor unit FDC100VNX Power source 1 Phase 220-240V 50Hz / 220V 60Hz Nominal cooling capacity (range) 10.0 [ 4.0(Min.)-11.2(Max.)] Nominal heating capacity (range) 11.2 [ 4.0(Min.)-12.5(Max.)]...
Page 6 '17 • PAC-T-257 SRK125VNXPZSX Model Item Indoor unit SRK60ZSX-S (2 units) Outdoor unit FDC125VNX Power source 1 Phase 220-240V 50Hz / 220V 60Hz Nominal cooling capacity (range) 12.5 [ 5.0(Min.)-14.0(Max.)] Nominal heating capacity (range) 14.0 [ 4.0(Min.)-17.0(Max.)] Cooling 3.60 Power consumption Heating 3.48 Max power consumption...
Page 7 '17 • PAC-T-257 SRK140VNXTZSX Model Item Indoor unit SRK50ZSX-S (3 units) Outdoor unit FDC140VNX Power source 1 Phase 220-240V 50Hz / 220V 60Hz Nominal cooling capacity (range) 14.0 [ 5.0(Min.)-16.0(Max.)] Nominal heating capacity (range) 16.0 [ 4.0(Min.)-18.0(Max.)] Cooling 3.98 Power consumption Heating 3.68 Max power consumption...
Page 8 '17 • PAC-T-257 SRK100VSXPZSX Model Item Indoor unit SRK50ZSX-S (2 units) Outdoor unit FDC100VSX Power source 3 Phase 380-415V 50Hz / 380V 60Hz Nominal cooling capacity (range) 10.0 [ 4.0(Min.)-11.2(Max.)] Nominal heating capacity (range) 11.2 [ 4.0(Min.)-16.0(Max.)] Cooling 2.66 Power consumption Heating 2.60 Max power consumption...
Page 9 '17 • PAC-T-257 SRK125VSXPZSX Model Item Indoor unit SRK60ZSX-S (2 units) Outdoor unit FDC125VSX Power source 3 Phase 380-415V 50Hz / 380V 60Hz Nominal cooling capacity (range) 12.5 [ 5.0(Min.)-14.0(Max.)] Nominal heating capacity (range) 14.0 [ 4.0(Min.)-18.0(Max.)] Cooling 3.60 Power consumption Heating 3.48 Max power consumption...
Page 10 '17 • PAC-T-257 SRK140VSXTZSX Model Item Indoor unit SRK50ZSX-S (3 units) Outdoor unit FDC140VSX Power source 3 Phase 380-415V 50Hz / 380V 60Hz Nominal cooling capacity (range) 14.0 [ 5.0(Min.)-16.0(Max.)] Nominal heating capacity (range) 16.0 [ 4.0(Min.)-20.0(Max.)] Cooling 3.98 Power consumption Heating 3.68 Max power consumption...
Page 11: Exterior Dimensions
'17 • PAC-T-257 1.2 EXTERIOR DIMENSIONS (1) Indoor units Models SRK50ZSX-S, 60ZSX-S RLF000Z201...
Page 12: Outdoor Units
'17 • PAC-T-257 (2) Outdoor units Models FDC100VNX, 125VNX, 140VNX 100VSX, 125VSX, 140VSX PCA001Z569 PCA001Z569...
Page 13: Remote Control
'17 • PAC-T-257 (3) Remote control (3) Remote control (a) Wireless remote control Unit : mm...
Page 14 '17 • PAC-T-257 (b) Wired remote control (Option parts) Interface kit (SC-BIKN-E) is required to use the wired remote control. Model RC-EX3 Installation space Exterior appearance Pearl White white (Munsell color) (N8.5) near equivalent allen R/C cable：0.3mm × 2 cores cores cores cores...
Page 15 '17 • PAC-T-257 Model RC-E5 Wiring outlet Cut off the upper thin part of remote control lower case with a nipper or knife, and grind burrs with a file etc. Exposed mounting In case of pulling out In case of pulling out from upper left from center 0.3mm...
Page 16: Electrical Wiring
'17 • PAC-T-257 1.3 ELECTRICAL WIRING (1) Indoor units Models SRK50ZSX-S, 60ZSX-S RWA000Z412...
Page 17: Outdoor Units
'17 • PAC-T-257 (2) Outdoor units Models FDC100VNX, 125VNX, 140VNX PCA001Z570...
Page 18 '17 • PAC-T-257 Models FDC100VSX, 125VSX, 140VSX PCA001Z571...
Page 19: Noise Level
'17 • PAC-T-257 1.4 NOISE LEVEL (1) Indoor units Model SRK50ZSX-S Condition ISO-T1, JIS B 8616 (Indoor Unit) Mike position Model SRK50ZSX-S Noise Cooling 44 dB(A) 0.8m Level Heating 46 dB(A) Unit Mike position (Center & Low points) × ..Cooling, Heating N 70 N 60...
Page 20 Cooling noise level 51 dB (A) Heating noise level 48 dB (A) '17 • PAC-T-257 4.2 Outdoor units (2) Outdoor units Measured based or JIS B 8616 or JIS C 9612 Mike position: at highest noise level in position as mentined below. 1000 2000 4000...
Page 21: Piping System
'17 • PAC-T-257 1.5 PIPING SYSTEM (1) Twin type Models 100, 125 Gas branch pipe (φ12.7) Indoor unit Indoor unit Outdoor unit Cooling cycle Heating cycle Check joint Temperature sensor (ThO-A) Gas line (φ15.88) Service valve (Flare connecting) Flare connecting Check joint 4-way valve Heat...
Page 22 '17 • PAC-T-257 Preset point of the protective devices Equipped Parts name Mark 100, 125, 140 model unit Temperature sensor OFF 16℃ (for protection ON 17℃ overloading in heating) Indoor unit Temperature sensor OFF 8℃ (for frost prevention) ON 2.5℃ Temperature sensor OFF 51℃...
Page 23: Range Of Usage & Limitations
'17 • PAC-T-257 1.6 RANGE OF USAGE & LIMITATIONS See the next page. Operating temperature range When used below -5˚C, install a snow hood. Considering to get sufficient heating capacity, the area where the averaged lowest ambient Recommendable area to install air temperature in day time during winter is above 0˚C, and it has no accumulation of snow.
Page 24 '17 • PAC-T-257 Operating temperature range ■ Cooling 43℃DB Usage range in cooling -15℃DB Indoor air temperature (℃WB) ■ Heating Usage range in heating Outdoor air temperature (℃WB) Decline in cooling and heating capacity or operation stop may occur when the outdoor unit is installed in places where natural wind can increase or decrease its design air flow rate.
Page 25 '17 • PAC-T-257 PJF000Z195...
Page 26 '17 • PAC-T-257 PJF000Z195...
Page 27: Selection Chart
Wall mounted type (SRK) Wall mounted type (SRK) (1) Twin type (1) Single type (1) Single type Indoor unit SRK50ZSX-S (2 units) Outdoor unit FDC100VNX SRK100VNXPZSX Model FDTC71VNXPVF FDTC71VNXPVF Model Model Indoor unit Indoor unit FDTC40VF (2 units) FDTC40VF (2 units)
Page 28 '17 • PAC-T-257 Indoor unit SRK60ZSX-S (2 units) Outdoor unit FDC125VNX SRK125VNXPZSX Model Cooling Mode Heating Mode:HC (kW) (kW) Indoor air temperature Indoor air temperature Outdoor Outdoor air temp. 18˚CDB 21˚CDB 23˚CDB 26˚CDB 27˚CDB 28˚CDB 31˚CDB 33˚CDB ˚CDB air temp. ˚CDB ˚CWB 12˚CWB 14˚CWB...
Page 29 '17 • PAC-T-257 (2) Triple type Indoor unit SRK50ZSX-S (3 units) Outdoor unit FDC140VNX SRK140VNXTZSX Model Cooling Mode Heating Mode:HC (kW) (kW) Indoor air temperature Indoor air temperature Outdoor Outdoor air temp. 18˚CDB 21˚CDB 23˚CDB 26˚CDB 27˚CDB 28˚CDB 31˚CDB 33˚CDB ˚CDB air temp.
Page 30 '17 • PAC-T-257 [References data] 　Capacity variation against outdoor and indoor temperature at the maximum compressor speed capacity compensation coefficient shows the ratio to nominal capacity. Models FDC100, 125, 140VNX, 100, 125, 140VSX Models SRC40, 50, 60ZMX-S ① Cooling ① Cooling Indoor air Indoor air temperature 24℃WB...
Page 31: Correction Of Cooling And Heating Capacity In Relation To Air Flow Rate Control (Fan Speed)
'17 • PAC-T-257 '10 • PAC-DB-136 1.7.2 Correction of cooling and heating capacity in relation to air flow rate control (fan speed) Fan speed P-Hi or Hi Coefficient 1.00 0.97 0.95 1.7.3 Correction of cooling and heating capacity in relation to one way length of refrigerant piping It is necessary to correct the cooling and heating capacity in relation to the one way equivalent piping length between the indoor and outdoor units.
Page 32 How to obtain the cooling and heating capacity Example : The net cooling capacity of the model SRK100VNXPZSX with the air flow “Hi”, the piping length of 15m, the outdoor unit located 5m lower than the indoor unit, indoor wet-bulb temperature at 19.0℃ and outdoor dry-bulb temperature 35℃ is .
Page 33: Application Data
'17 • PAC-T-257 1.8 APPLICATION DATA RLF012A200 1.8.1 Installation of indoor unit Model SRK20,25,35,50,60ZSX-S R410A REFRIGERANT USED • This installation manual deals with an indoor unit installation only. For an outdoor unit installation, refer to page 49. SAFETY PRECAUTIONS • Before installation, read the “SAFETY PRECAUTIONS” carefully and strictly follow it during the installa- • B e sure to confirm no operation problem on the equipment after completing the installation. If unusual tion work in order to protect yourself.
Page 34 '17 • PAC-T-257 2. SELECTING INSTALLATION LOCATION After getting customer’s approval, select installation location according to following guidelines. 6.5 cm minimum from the ceiling (In the case of less than 10 cm, Installation example 1. Indoor unit there is a possibility of performance 2 cm degradation.) •...
Page 35 '17 • PAC-T-257 6. FORMING PIPING AND DRAIN HOSE 1. Forming piping Piping is possible in the right, rear, downward, left, left rear or left downward direction. Pipings Forming of pipings Taping of the exterior NOTE • Hold the bottom of the •...
Page 36 '17 • PAC-T-257 10. HOW TO OPEN, CLOSE, REMOVE AND INSTALL 13. INSTALLING TWO AIR-CONDITIONERS IN THE SAME ROOM THE AIR INLET PANEL 1. Open In case two air-conditioners are installed in the same room, apply this setting so that one unit can be Air inlet panel operated with only one wirelesss remote control.
Page 37: Installation Of Wired Remote Control (Option)
'17 • PAC-T-257 8.2 Installation of wired remote control (Option) PJZ012A131 (1) Model RC-EX3 　 1. Safety precautions ● Please read this manual carefully before starting installation work to install the unit properly. Every one of the followings is important information to be observed strictly. Failure to follow these instructions properly may result in serious WARNING consequences such as death, severe injury, etc.
Page 38 '17 • PAC-T-257 　 WARNING Do not install the unit in appropriate environment or where inﬂammable gas could generate, ﬂow in, accumulate or leak. If the unit is used at places where air contains dense oil mist, steam, organic solvent vapor, corrosive gas (ammonium, sulfuric compound, acid, etc) or where acidic or alkaline solution, special spray, etc.
Page 39 '17 • PAC-T-257 　 CAUTION Do not install the remote control at following places. (1) It could cause break-down or deformation of remote control. ・Where it is exposed to direct sunlight ・Where the ambient temperature becomes 0 ° C or below, or 40 ° C or above ・Where the surface is not ﬂat ・Where the strength of installation area is insufﬁcient (2) Moisture may be attached to internal parts of the remote control, resulting in a display...
Page 40 '17 • PAC-T-257 　 2 . Accessories & Prepare on site Following parts are provided. Accessories R/C main unit, wood screw (ø3.5 x 16) 2 pcs, Quick reference Following parts are arranged at site. Prepare them according to the respective installation procedures. When the cable length is longer than 100 m, Item name Q’ty Remark the max size for wires used in the R/C case Switch box is 0.5 mm . Connect them to wires of larger For 1 piece or 2 pieces (JIS C 8340 or equivalent) size near the outside of R/C. When wires are Thin wall steel pipe for electric These are not required when installing connected, take measures to prevent water, appliance directly on a wall.
Page 41 '17 • PAC-T-257 　 4 . Installation procedure Perform installation and wiring work for the remote control according to the PCB side (Viewed from rear) following procedure. Dimensions (Viewed from front) 固定穴 Fixing holes センサー端子 Sensor USB port Terminal block To remove the upper case from the bottom cases of R/C · I nsert the tip of flat head screw driver or the like in the recess at the lower part of R/C and twist it lightly to remove. It is recommended that the tip of the screw driver be wrapped with tape to avoid damaging the case. Conduit 電線管...
Page 42 ブッシングパテでシールすること '17 • PAC-T-257 　リモコン配線 ③ C onnect wires from X and Y terminals of R/C to X and Y terminals of indoor unit. R/C wires (X, Y) have no polarity. Fix wires such that the wires will run around the terminal screws on the top case of R/C. Wiring hole on 下ケース配線穴 ④ Install the upper case with care not to pinch wires of R/C. bottom case Cautions for wire connection Use wires of no larger than 0.5 mm for wiring running through the remote control case.
Page 43 '17 • PAC-T-257 　 5 . Main/Sub setting when more than one remote control are used ○: operable ×: not operable Up to two units of R/C can be used R/C operations Main Sub R/C operations Main Sub Run/Stop, Change set temp, Service Installation Installation date ○ × at the maximum for 1 indoor unit or 1 setting settings Change flap direction, Auto swing, Change fan...
Page 44 '17 • PAC-T-257 (2) Model RC-E5 Installation manual for wired remote controller PJA012D730 Connect the remote control terminal block. Connect the terminal of rem Read together with indoor unit's installation manual. with the terminal of indoor u WARNING (X and Y are no polarity) Wiring route is as shown in Fasten the wiring to the terminal securely and hold the cable securely so as not to apply unexpected stress on the depending on the pulling ou...
Page 45 '17 • PAC-T-257 emote controller Connect the remote control cord to the Sheath Sheath The range of temperature setting Upper Upper terminal block. When shipped, the range of set tempe Connect the terminal of remote control (X,Y) Upper case Upper case Board Board Heating : 16-30°C (55 - 86°F)
Page 46 '17 • PAC-T-257 P J A 0 12 D 7 3 0 Sheath Sheath The range of temperature setting Upper When shipped, the range of set temperature differs depending on the operation mode as below. pper case Upper case Board Heating : 16-30°C (55 - 86°F) Except heating (cooling, fan, dry, automatic) : 18 - 30°C (62 - 86°F) Upper limit and lower limit of set temperature can be changed with remote control.
Page 47 '17 • PAC-T-257 The functional setting The initial function setting for typical using is performed automatically by the indoor unit connected, when remote control and indoor unit are connected. As long as they are used in a typical manner, there wiil be no need to change the initial settings. If you would like to change the initial setting marked “...
Page 48 '17 • PAC-T-257 Note 1: The initial setting marked “ ” is decided by connected indoor and outdoor unit, and is automatically defined as following table. Function No. Item Default Model "Auto-RUN" mode selectable indoor unit. Remote control function02 Indoor unit without "Auto-RUN" mode Indoor unit with two or three step of air flow setting Remote control function06...
Page 49 '17 • PAC-T-257 PJA0 12D 730 nd is automatically defined as following table. Operation message How to set function ectable indoor unit. Function description: Function No. Stop air-conditioner and press (SET) (MODE) setting description: uto-RUN" mode buttons at the same time for over three seconds, and the three step of air flow setting "FUNCTION SET "...
Page 50: Installation Of Outdoor Unit
'17 • PAC-T-257 1.8.3 Installation of outdoor unit Models FDC100-140VNX, 100-140VSX 　...
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Page 58: Instructions For Branching Pipe Set (Dis-Wa1,Wb1,Ta1,Tb1)
'17 • PAC-T-257 2-1　D INSTRUCTIONS FOR BRANCHING PIPE SET INSTALLATION FOR TWIN/TRIPLE/ W-TWIN CONFIGURATION SYSTEMS Supp 1.8.4 Instructions for branching pipe set (DIS-WA1, WB1, TA1, TB1) Outdoor unit For R410A PSB012D865 PSB012D865 WARNING / CAUTION ● This set is for R410A refrigerant. ●...
Page 59 '17 • PAC-T-257 2-1　DIS-WA1 2-2　DIS-WB1 STEMS Supported combinations Supported combinations Liquid branching pipe Gas branching pipe Liquid branching pipe Gas branching pipe Outdoor unit model Indoor unit model Outdoor unit model Indoor unit model ID15.88 ID9.52 ② 3HP＋5HP ② ID12.7 ①...
Page 60 '17 • PAC-T-257 2-6. Triple type for same model/different capacity or different model/different capacity Applicable to the difference in length of pipes after the branch being less than 3 m * Connection is not allowed when the difference in length of pipes is larger than 3 m. Outdoor unit model Indoor unit model Branching pipe...
Page 61: Outline Of Operation Control By Microcomputer
'17 • PAC-T-257 1.9 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER 1.9.1 Remote control (1) Wireless remote control Transmission section OPERATION MODE select button ON/OFF (luminous) button Each time the button is pressed, the Press to start operation, press again mode changes. to stop.
Page 62 '17 • PAC-T-257 (2) Wired remote control Model RC-EX3 ⑤ LCD (With backlight) ③ F2 switch ④ Operation ⑥ USB port (mini-B) ① Run/Stop switch ② F1 switch Touch panel system, which is operated by tapping the LCD screen with a finger, is employed for any operations other than the ①Run/Stop, ②F1 and ③F2 switches.
Page 63 '17 • PAC-T-257 Wired remote control Model RC-E5 The figure below shows the remote control with the cover opened. Note that all the items that may be displayed in the liquid crystal display area are shown in the figure for the sake of explanation Characters displayed with dots in the liquid crystal display area are abbreviated.
Page 64: Operation Control Function By The Wired Remote Control
'17 • PAC-T-257 1.9.2 Operation control function by the wired remote control Model RC-EX3 (1) Switching sequence of the operation mode switches of remote control (a) Tap the change operation mode button on the TOP screen. (b) When the change operation mode screen is displayed, tap the button of desired mode. (c) When the operation mode is selected, the display returns to the TOP screen.
Page 65 '17 • PAC-T-257 ●Content memorized with the power failure compensation are as follows. Note(1) Items (f) and (g) are memorized regardless whether the power failure compensation is effective or not while the setting of silent mode is cancelled regardless whether the power failure compensation is effective or not. At power failure –...
Page 66 '17 • PAC-T-257 Model RC-E5 Switching sequence of the operation mode switches of remote control COOL HEAT AUTO CPU reset This functions when “CHECK” and “ESP” buttons on the remote control are pressed simultaneously. Operation is same as that of the power source reset. Power failure compensation function (Electric power source failure) •...
Page 67: Operation Control Function By The Indoor Control
'09•SRK-DB-087D '17 • PAC-T-257 1.9.3 Operation control function by the indoor control (1) Unit ON/OFF button (a) Operation (b) Details of operation room whether to go into the COOL, DRY or HEAT modes. Function Room temperature Fan speed Flap/Louver Timer switch setting Operation mode COOL...
Page 68: Timer Operation
'17 • PAC-T-257 (b) RC-E5 (i) Louver control Press the “LOUVER” button to operate the swing louver when the air-conditioner is operating. “SWING ” is displayed for 3 seconds and then the swing louver moves up and down continuously. To fix the swing louver at a position, press one time the “LOUVER” button while the swing louver is moving so that four stop positions are displayed one after another per second.
Page 69: Remote Control Display During The Operation Stop
'17 • PAC-T-257 (vii) Combination of patterns which can be set for the timer operations Weekly timer Sleep time Set OFF timer by hour Set ON timer by hour Set OFF timer by clock Set ON timer by clock Sleep time Set OFF timer by hour Set ON timer by hour Set OFF timer by clock...
Page 70: Indoor Fan Motor Protection
'17 • PAC-T-257 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 min under for more than 30 seconds, the unit enters first in the stop mode and then stops the entire system. Serial signal transmission error protection (a)　Purpose: Prevents malfunction resulting from error on the indoor ↔...
Page 71: Filter Sign
'17 • PAC-T-257 In case of anomaly If any anomaly occurs on a unit in a group (a protective function operates), that unit stops with the anomalous stop but any other normal units continue to run as they are. Signal wiring procedure Signal wiring between indoor and outdoor units should be made on each unit same as the normal wiring.
Page 72: Frost Prevention Control
'09•SRK-DB-087D '17 • PAC-T-257 (12) Frost prevention control (a) Operating conditions compressor speed (b) Detail of anti-frost operation Lower limit Indoor heat exchanger temperature 5°C or lower 2.5°C or lower speed Item 25 rps Lower limit of compressor command speed 0 rps Keep the fan speed before Indoor fan...
Page 73: Outline Of Defumidifying (Dry) Operation
'17 • PAC-T-257 When this control has continued for more than 30 minutes continuously,the following wind direction control is performed. a) When the vertical wind direction is set at other than the vertical swing,the flaps change to the horizontal position. b) When the horizontal wind direction is set at other than the horizontal swing,the louver changes to the vertical position.
Page 74: Operation Control Function By The Outdoor Control
'17 • PAC-T-257 1.9.4 Operation control function by the indoor control (1) Determination of compressor speed (Frequency) Required frequency Cooling/dehumidifying operation Unit: rps Model FDC100 FDC125 FDC140 Usual operation 95(92) 95(92) Max. required frequency Silent mode, outdoor temperature ≦ 15°C Min.
Page 75: Compressor Soft Start Control
'17 • PAC-T-257 (2) Compressor start control Compressor starts upon receipt of the thermostat ON signal from the indoor unit. (b) However, at initial start after turning the power source breaker, it may enter the standby state for maximum 30 minutes (“...
Page 76: Outdoor Unit Fan Control
'17 • PAC-T-257 Outdoor unit fan control (a) Outdoor unit fan tap and fan motor speed Unit: min Model Mode Fan motor tap ➀ speed ➁ speed ➂ speed ➃ speed ➄ speed ➅ speed ➆ speed FDC100, 125, 140 Cooling/Dehumidifying Heating (b) Fan tap control during Cooling/Defumidifying operation...
Page 77 '17 • PAC-T-257 (ii) The outdoor unit heat exchanger temperature is detected always and, when the number of revolutions of the outdoor fan speed has been increased or decreased, there is no change of fan speed for 20 seconds. (iii) Range of the outdoor unit fan speed under this control is as follows. 1) Lower limit: 130 min 2) Upper limit: 500 min (iv) As any of the following conditions is established, this control terminates.
Page 78: Defrost Operation
Defrost operation start temperature zone '17 • PAC-T-257 Defrost operation Model FDC100-140 (a) Starting conditions Outdoor air temp. (℃)［Tho-A］ If all of the following defrost conditions A or conditions B Model FDC71 are satisfied, the defrost operation starts. Defrost conditions A Cumulative compressor operation time after the end of defrost operation has elapsed 37 minutes, and the cumulative compressor operation time...
Page 79: Protective Control/Anomalous Stop Control By Compressor S Number Of Revolutions
'17 • PAC-T-257 (c) Switching of defrost control with SW3-1 (i) If SW3-1 on the outdoor unit control PCB is turned to ON, it becomes easier to enter the defrost operation. Use this when installing a unit at snowing regions. (ii) Control contents It allows entering the defrost operation under the defrost condition A when the cumulative heating operation time becomes 30 minutes.
Page 80 '17 • PAC-T-257 (c) Heating high pressure protection (i) Protective control As the indoor unit heat exchanger temperature (Th2) exceeds the setting value, the compressor speed (frequency) is controlled to suppress the rise of high pressure. Control value A is updated to an optimum value automatically according to the operating conditions. Existing piping adaptation switch: SW5-1 Reduces compressor frequency Model...
Page 81 '17 • PAC-T-257 (g) Over-current protection current safe controls I, II Detecting the outdoor unit inverter input (primary) current and the output (secondary) current, if the current values exceed setting values, the compressor speed (frequency) is controlled to protect the inverter. Reduces frequency Cooling Heating...
Page 82 '17 • PAC-T-257 Dewing prevention control [Control condition] During cooling and dehumidifying operation, if all the following conditions are established, the compressor speed (frequency) is reduced to prevent dewing and water splash. (i) Cooling electronic expansion valve aperture (EEVC) is 500 pulses. (ii) Suction overheat is 10°C or higher.
Page 83: Silent Mode
'17 • PAC-T-257 Silent mode As “Silent mode start” signal is received from the remote control, it operates by dropping the outdoor unit fan tap and the compressor speed (frequency). (b) For details, refer to items (1) and (4) above. Test run (a) It is possible to operate from the outdoor unit using the dip switch on the outdoor unit control PCB.
Page 84: Base Heater On/Off Output Control (Option)
'17 • PAC-T-257 (10) Base heater ON/OFF output control (Option) Base heater ON conditions When all of following conditions are met, the base heater is turned ON. ・ Outdoor air temperature (detected with Tho-A) is 3°C or lower. ・ In the heating mode ・...
Page 85: Maintenance Data
'17 • PAC-T-257 1.10 MAINTENANCE DATA 1.10.1 Diagnosing of microcomputer circuit (1) Selfdiagnosis function Check Indicator Table At the indoor unit side, errors are displayed with the combination of RUN light and TIMER light on the display panel. (i) Indoor unit SRK series Remote control Indoor unit display...
Page 86 '17 • PAC-T-257 (ii) Outdoor unit Remote control Indoor unit display Outdoor control PCB Outdoor inventer PCB Reference Location of trouble Description of trouble Repair method FDC100-140VNX, 100-140VSX page TIMER Error code Red LED RUN light Red LED Green LED Yellow LED light FDC100-140VN, 100-140VS...
Page 87 '17 • PAC-T-257 (iv) Display sequence of error codes or inspection indicator lamps ■ Occurrence of one kind of error Displays are shown respectively according to errors. ■ Occurrence of plural kinds of error Section Category of display Error code on remote •...
Page 88: Troubleshooting Procedure
'17 • PAC-T-257 ■ Error log and reset Error indicator Memorized error log Reset Remote control display • Higher priority error is memorized. • Stop the unit by pressing the ON/OFF switch of remote control. Red LED on indoor control PCB •...
Page 89 '17 • PAC-T-257 SRK series Cautions Cautions a) If you are disassembling and checking an air-conditioner, be sure to turn off the power before beginning. a) If you are disassembling and checking an air-conditioner, be sure to turn off the power before beginning. When working on indoor units, let the unit sit for about 1 minute after turning off the power before you begin work.
Page 90 '09•SRK-DB-087D '17 • PAC-T-257 4) Inspection procedures corresponding to detail of trouble Sensor error Broken sensor wire, connector poor connection Sensor temperature characteristics (Room temp., indoor heat exchanger temp.) - 10 Temperature (˚C) Indoor fan motor error Defective fan motor, connector poor connection, defective indoor PCB 92 for the fan motor and indoor PCB check procedure.
Page 91 '17 • PAC-T-257 Error of signal transmission Wiring error including power cable, defective indoor/ outdoor PCB ② ③ ② ③ ① ②...
Page 92 '17 • PAC-T-257 5) Phenomenon observed after shortcircuit, wire breakage on sensor Phenomenon Operation Sensor mode Shortcircuit Disconnected wire Cooling Room temperature sensor Heating Freezing cycle system protection trips and stops the compressor. Cooling Heat exchanger sensor Heating Cooling Humidity sensor Heating '09•SRK-DB-087D ■...
Page 93 Replace indoor PCB. blocks ② and ③ oscillating between DC 0 and 20V? '17 • PAC-T-257 Indoor electrical components are normal. Indoor unit fan motor check procedure i) Indoor PCB output check iii) ① ④ ⑤ DC several V (–) DC 308-336V (4-6 V) Measuring...
Page 94: Troubleshooting At The Outdoor Unit
'17 • PAC-T-257 Troubleshooting at the outdoor unit When troubleshooting the outdoor unit, firstly assess the overview of malfunction and try to presume the cause and the faulty part by checking the error code dispalyed on the remote control and flashing pattern of indicator lamps (Red LED and Green LED), and then proceed further inspection and remedy it.
Page 95 '17 • PAC-T-257 Models FDC100VNX, 125VNX, 140VNX,100VN, 125VN, 140VN PCA012D043 Model FDC100VSX, 125VSX, 140VSX, 100VS, 125VS, 140VS Replace the PCB after elapsing 3 minutes from power OFF. (Be sure to measure voltage (DC) on both capacitor terminals located in control back, and check that the voltage is discharged sufficiently.) Disconnect the connectors from the control PCB.
Page 96 '17 • PAC-T-257 (c) Outdoor inverter PCB replacement procedure Precautions for Safety • Since the following precaution is the important contents for safety, be sure to observe them. WARNING and CAUTION are described as follows: WARNING Indicates an imminently hazardous situation which will result in death or serious injury if proper safety procedures and instructions are not adhered to.
Page 97 '17 • PAC-T-257 Models FDC100VNX, 125VNX, 140VNX PCA012D025D 100VN, 125VN, 140VN Replace the PCB after elapsing 3 minutes from power OFF. (Be sure to measure voltage (DC) on both capacitor terminals located in control back, and check that the voltage is discharged sufficiently.(Refer to Fig.1)) Take off the connection of inverter PCB terminal block connector and remove the screw of power transistor then remove the PCB.
Page 98 '17 • PAC-T-257 (ii) Models FDC100VSX, 125VSX, 140VSX PCA012D025F 100VS, 125VS, 140VS Replace the PCB after elapsing 3 minutes from power OFF. (Be sure to measure voltage (DC) on both capacitor terminals located in control back, and check that the voltage is discharged sufficiently.(Refer to Fig.1)) Take off the connection of inverter PCB terminal block connector and remove the screw of power transistor then remove the PCB.
Page 99 '17 • PAC-T-257 DIP switch setting list (Outdoor unit) Models FDC100, 125, 140VNX, 100, 125, 140VSX (1) Control PCB Models FDC100,125,140VNX,100,125,140VSX Switches Description Default setting Remarks Pump down operation Normal*/Pump down Normal JSW1-1 JSW1-2 Model selection As per model See table 1 JSW1-3 JSW1-4 Defrost condition...
Page 100 '17 • PAC-T-257 Models FDC100, 125, 140VN, 100, 125, 140VS (1) Control PCB Switches Description Default setting Remarks Pump down operation Normal*/Pump down Normal JSW1-1 JSW1-2 Model selection As per model See table 1 JSW1-3 JSW1-4 SW3-1 Defrost condition Normal*/Cold region Normal Snow protection control Normal...
Page 101: Check Of Anomalous Operation Data With The Remote Control
'17 • PAC-T-257 Check of anomalous operation data with the remote control (a) In case of RC-EX3 remote control [Operating procedure] ➀ On the TOP screen, touch the buttons in the order of “Menu” ➝ “Service setting” ➝ “Service & Maintenance” ➝ “Service password”...
Page 102 '17 • PAC-T-257 Models FDC100, 125, 140VN, 100, 125, 140VS Reference Page Contents of display Note(1) Operation data display on the remote control. "0" Normal Data is dispalyed until canceling the protection control. In case of multiple protections controlled, only the younger No. is displayed. "1"...
Page 103: Power Transistor Module (Including The Driver Pcb) Inspection Procedure
'17 • PAC-T-257 Power transistor module (including the driver PCB) inspection procedure Is the power transistor module cracked or burnt? Is there a short circuit between the power transistor module ∗ terminals? Compressor operation Is there any difference in the compressor current If there is a 10% or greater difference between phases? in the current in different phases.
Page 104: Inverter Checker For Diagnosis Of Inverter Output
'17 • PAC-T-257 (7) Inverter checker for diagnosis of inverter output Models FDC100, 125, 140VNX,100, 125, 140VSX FDC100, 125, 140VN, 100, 125, 140VS 　●Checking method Model: FDC100-140 1) Setup procedure of checker. a) Power OFF (Turn off the breaker). b) Remove the terminal cover of compressor and disconnect the wires (U, V, W) from compressor. c) Connect the wires U (Red) , V (White) and W (Black) of checker to the terminal of disconnected wires (U, V, W) from compressor respectively.
Page 105: Outdoor Unit Control Failure Diagnosis Circuit Diagram
'17 • PAC-T-257 Outdoor unit control failure diagnosis circuit diagram t° t° t° t° t° t°...
Page 106 '17 • PAC-T-257 t° t° t° t° t° t°...
Page 107 '17 • PAC-T-257...
Page 108 '17 • PAC-T-257...
Page 109: Troubleshooting Flow
'17 • PAC-T-257 1.10.2 Troubleshooting flow (1) List of troubles Remote control display Description of trouble Reference page None Operates but does not cool. None Operates but does not heat. None Earth leakage breaker activated None Excessive noise/vibration (1/3) None Excessive noise/vibration (2/3) None Excessive noise/vibration (3/3)
Page 110: Troubleshooting
'17 • PAC-T-257 (2) Trouble shooting RUN light TIMER light Indoor Content Error code display – – Operates but does not cool None Remote control: Green LED Red LED Outdoor unit control PCB Keeps flashing Stays OFF 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure...
Page 111 '17 • PAC-T-257 RUN light TIMER light Indoor Content Error code display – – Operates but does not heat None Remote control: Green LED Red LED Outdoor unit control PCB Keeps flashing Stays OFF 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Check the indoor unit fan operation.
Page 112 '17 • PAC-T-257 RUN light TIMER light Indoor Content Error code display – – Earth leakage breaker activated None Remote control: Green LED Red LED Outdoor unit control PCB Stays OFF Stays OFF 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Are OK the...
Page 113 '17 • PAC-T-257 RUN light TIMER light Indoor Content Error code display – – Excessive noise/vibration (1/3) None Remote control: Green LED Red LED Outdoor unit control PCB – – 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure If excessive noise/vibration persists when sufficient Does time has elapsed after...
Page 114 '17 • PAC-T-257 RUN light TIMER light Indoor Content Error code display – – Excessive noise/vibration (2/3) None Remote control: Green LED Red LED Outdoor unit control PCB – – 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure From previous page Rearrange the piping to Are the pipes...
Page 115 '17 • PAC-T-257 RUN light TIMER light Indoor Content Error code display – – Excessive noise/vibration (3/3) None Remote control: Green LED Red LED Outdoor unit control PCB – – 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure From previous page If insufficient cooling/ Adjustment...
Page 116 '17 • PAC-T-257 RUN light TIMER light Indoor Content Error code display – – Louver motor failure None Remote control: Green LED Red LED Outdoor unit control PCB Keeps flashing Stays OFF 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure L Check at the indoor unit side.
Page 117 '17 • PAC-T-257 RUN light TIMER light Indoor Power source system error Content Error code display – – None Remote control: (Power source to indoor unit control PCB) Green LED Red LED Outdoor unit control PCB Stays OFF 2-time flash 5.
Page 118 '17 • PAC-T-257 RUN light TIMER light Indoor Content Error code Power source system error display – – None (Power source to remote control) Remote control: Green LED Red LED Outdoor unit control PCB Keeps flashing Stays OFF 5. Troubleshooting 1.
Page 119 '17 • PAC-T-257 RUN light TIMER light Indoor Content Error code display Stays OFF Keeps flashing Limit switch anomaly None Remote control: Green LED Red LED Outdoor unit control PCB Keeps flashing Stays OFF 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Is the inlet...
Page 120 '17 • PAC-T-257 RUN light TIMER light Indoor Content Error code display – – INSPECT I/U INSPECT I/U Remote control: Green LED Red LED Outdoor unit (When 1 or 2 remote controls are connected) control PCB Keeps flashing 2-time flash 5.
Page 121 '17 • PAC-T-257 RUN light TIMER light Indoor Content Error code display – – INSPECT I/U INSPECT I/U Remote control: Green LED Red LED Outdoor unit (Connection of 3 units or more remote control) control PCB Keeps flashing 2-time flash 5.
Page 122 '17 • PAC-T-257 RUN light TIMER light Indoor Content Error code display – – Communication error at Remote control: WAIT Green LED Red LED Outdoor unit initial operation (1/3) control PCB Keeps flashing 2-time flash 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure...
Page 123 '17 • PAC-T-257 RUN light TIMER light Indoor Content Error code display – – Communication error at Remote control: WAIT Green LED Red LED Outdoor unit initial operation (2/3) control PCB Keeps flashing 2-time flash 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure...
Page 124 '17 • PAC-T-257 RUN light TIMER light Indoor Content Error code display – – Communication error at Remote control: WAIT Green LED Red LED Outdoor unit initial operation (3/3) control PCB Keeps flashing 2-time flash 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure...
Page 125 '17 • PAC-T-257 RUN light TIMER light Indoor Content Error code display – – No display None Remote control: Green LED Red LED Outdoor unit control PCB Stays OFF Stays OFF 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Remote control does not display anything after the power on.
Page 126 '17 • PAC-T-257 RUN light TIMER light Indoor Content Error code display – – Remote control Remote control: Green LED Red LED Outdoor unit communication circuit error control PCB Keeps flashing Stays OFF 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Malfunction by noise...
Page 127 '17 • PAC-T-257 RUN light TIMER light Indoor Content Error code display 6-time flash Communication error during operation Remote control: Green LED Red LED Outdoor unit control PCB Keeps flashing See below 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure In case that the outdoor unit red LED flashes 2-times Note (1) Inspect faulty connections (disconnection,...
Page 128 '17 • PAC-T-257 RUN light TIMER light Indoor Content Error code Indoor heat exchanger display 1(3)-time flash Remote control: Green LED Red LED temperature sensor anomaly Outdoor unit control PCB Keeps flashing Stays OFF Note(1) Value in ( ) are the Th2 5.
Page 129 '17 • PAC-T-257 RUN light TIMER light Indoor Content Error code Room temperature display 2-time flash None Remote control: Green LED Red LED sensor anomaly Outdoor unit control PCB Keeps flashing Stays OFF 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Is the...
Page 130 '17 • PAC-T-257 RUN light TIMER light Excessive number of connected Indoor Content Error code display – – indoor units (more than 17 units) Remote control: Green LED Red LED Outdoor unit by controlling with one remote control control PCB Keeps flashing Stays OFF 5.
Page 131 '17 • PAC-T-257 RUN light TIMER light Indoor Content Error code display Communication error – – Remote control: Green LED Red LED Outdoor unit between master and slave indoor units control PCB Keeps flashing Stays OFF 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure...
Page 132 '17 • PAC-T-257 RUN light TIMER light Indoor Content Error code display 6-time flash Remote control: Indoor fan motor anomaly Green LED Red LED Outdoor unit control PCB Keeps flashing Stays OFF 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure Does any foreign material...
Page 133 '17 • PAC-T-257 RUN light TIMER light Indoor Content Error code Remote control display – – Remote control: temperature thermistor anomaly Green LED Red LED Outdoor unit control PCB Keeps flashing Stays OFF 5. Troubleshooting 1. Applicable model All models Diagnosis Countermeasure 2.
Page 134 '17 • PAC-T-257 RUN light TIMER light Error code Indoor display Content Keeps flashing Remote control: Green LED Red LED Outdoor unit Cooling overload operation Keeps flashing 1-time flash control PCB Yellow LED Outdoor unit Keeps flashing inverter PCB 5. Troubleshooting 1.
Page 135 '17 • PAC-T-257 RUN light TIMER light Error code Indoor display Content 5-time flash Remote control: Discharge pipe Green LED Red LED Outdoor unit Keeps flashing 1-time flash control PCB temperature error Yellow LED Outdoor unit Keeps flashing inverter PCB 5.
Page 136 '17 • PAC-T-257 RUN light TIMER light Error code Indoor display Content Keeps flashing 2-time flash Remote control: Outdoor heat exchanger Green LED Red LED Outdoor unit Keeps flashing 1-time flash control PCB temperature thermistor anomaly Yellow LED Outdoor unit Keeps flashing inverter PCB 5.
Page 137 '17 • PAC-T-257 RUN light TIMER light Error code Indoor display Content Keeps flashing 1-time flash Remote control: Outdoor air temperature Green LED Red LED Outdoor unit Keeps flashing 1-time flash control PCB thermistor anomaly Yellow LED Outdoor unit Keeps flashing inverter PCB 5.
Page 138 '17 • PAC-T-257 RUN light TIMER light Error code Indoor display Content Keeps flashing 4-time flash Remote control: Discharge pipe Green LED Red LED Outdoor unit Keeps flashing 1-time flash control PCB temperature thermistor anomaly Yellow LED Outdoor unit Keeps flashing inverter PCB 5.
Page 139 '17 • PAC-T-257 RUN light TIMER light Error code Indoor display Content – – Remote control: High pressure error Green LED Red LED Outdoor unit Keeps flashing 1-time flash control PCB (63H1 activated) Yellow LED Outdoor unit Keeps flashing inverter PCB 5.
Page 140 '17 • PAC-T-257 RUN light TIMER light Error code Indoor display Content – – Remote control: Green LED Red LED Outdoor unit 　　 Power transistor overheat Keeps flashing 1-time flash control PCB Yellow LED Outdoor unit 6-time flash inverter PCB 5.
Page 141 '17 • PAC-T-257 RUN light TIMER light Error code Indoor display Content 1-time flash Remote control: Green LED Red LED Outdoor unit Current cut (1/2) Keeps flashing 1-time flash control PCB Yellow LED Outdoor unit 1-time flash inverter PCB 5. Troubleshooting 1.
Page 142 '17 • PAC-T-257 RUN light TIMER light Error code Indoor display Content 1-time flash Remote control: Green LED Red LED Outdoor unit Current cut (2/2) Keeps flashing 1-time flash control PCB Yellow LED Outdoor unit 1-time flash inverter PCB 5. Troubleshooting 1.
Page 143 '17 • PAC-T-257 RUN light TIMER light Error code Indoor display Content – – Remote control: Communication error between Green LED Red LED Outdoor unit Keeps flashing 1-time flash control PCB inverter PCB and outdoor unit control PCB Yellow LED Outdoor unit Keeps flashing inverter PCB...
Page 144 '17 • PAC-T-257 RUN light TIMER light Error code Indoor display Content 7-time flash Remote control: Outdoor fan motor anomaly Green LED Red LED Outdoor unit Keeps flashing 1-time flash control PCB Yellow LED Outdoor unit Keeps flashing inverter PCB 5.
Page 145 '17 • PAC-T-257 RUN light TIMER light Error code Indoor display Content – – Remote control: Low pressure error or Green LED Red LED Outdoor unit Keeps flashing 1-time flash control PCB low pressure sensor anomaly (1/2) Yellow LED Outdoor unit Keeps flashing inverter PCB 5.
Page 146 '17 • PAC-T-257 RUN light TIMER light Error code Indoor display Content – – Remote control: Low pressure error or Green LED Red LED Outdoor unit Keeps flashing 1-time flash control PCB low pressure sensor anomaly (2/2) Yellow LED Outdoor unit Keeps flashing inverter PCB 5.
Page 147 '17 • PAC-T-257 RUN light TIMER light Error code Indoor display Content 4-time flash Remote control: Green LED Red LED Outdoor unit Inverter and fan motor anomaly Keeps flashing 1-time flash control PCB Yellow LED Outdoor unit 6-time flash inverter PCB 5.
Page 148 '17 • PAC-T-257 RUN light TIMER light Error code Indoor display Content Keeps flashing 5-time flash Remote control: Suction pipe temperature Green LED Red LED Outdoor unit Keeps flashing 1-time flash control PCB thermistor anomaly Yellow LED Outdoor unit Keeps flashing inverter PCB 5.
Page 149 '17 • PAC-T-257 RUN light TIMER light Error code Indoor display Content – – Remote control: Green LED Red LED Outdoor unit Low pressure sensor anomaly Keeps flashing 1-time flash control PCB Yellow LED Outdoor unit Keeps flashing inverter PCB 5.
Page 150 '17 • PAC-T-257 RUN light TIMER light Error code Indoor display Content 7-time flash Remote control: Insufficient refrigerant amount Green LED Red LED Outdoor unit Keeps flashing 1-time flash control PCB or detection of service valve closure Yellow LED Outdoor unit Keeps flashing inverter PCB 5.
Page 151 '17 • PAC-T-257 RUN light TIMER light Error code Indoor display Content – – Remote control: Green LED Red LED Outdoor unit Compressor startup failure (1/2) Keeps flashing 5-time flash control PCB Yellow LED Outdoor unit Stays OFF inverter PCB 5.
Page 152 '17 • PAC-T-257 RUN light TIMER light Error code Indoor display Content – – Remote control: Green LED Red LED Outdoor unit Compressor startup failure (2/2) Keeps flashing 5-time flash control PCB Yellow LED Outdoor unit Stays OFF inverter PCB 5.
Page 153: Technical Information
Rated air flow(outdoor) 6000 m3/h Contact details for obtaining Name and address of the manufacturer or of its authorised representative. more information Mitsubishi Heavy Industries Air-Conditioning Europe, Ltd. 7 Roundwood Avenue, Stockley Park, Uxbridge, Middlesex, UB11 1AX, United Kingdom PCA001Z717...
Page 154 Rated air flow(outdoor) 6000 m3/h Contact details for obtaining Name and address of the manufacturer or of its authorised representative. more information Mitsubishi Heavy Industries Air-Conditioning Europe, Ltd. 7 Roundwood Avenue, Stockley Park, Uxbridge, Middlesex, UB11 1AX, United Kingdom PCA001Z717...
Page 155 '17 • PAC-T-257 2. MICRO INVERTER PACKAGED AIR-CONDITIONERS CONTENTS 2.1 SPECIFICATIONS ...................156 2.2 EXTERIOR DIMENSIONS ................162 (1) Indoor units ....................162 (2) Outdoor units ....................162 (3) Remote control (Option parts) ..............162 2.3 ELECTRICAL WIRING ..................163 (1) Indoor units ....................163 (2) Outdoor units ....................163 2.4 NOISE LEVEL ....................165 2.5 PIPING SYSTEM...
Page 156 '17 • PAC-T-257 Example: SRK 100 VN P ZSX Series code P : Twin type T : Triple type Applicable power source...See the specification Product capacity Model name SRK : Wall mounted type FDC : Outdoor unit...
Page 157: Specifications
'17 • PAC-T-257 2.1 SPECIFICATIONS Wall mounted type (SRK) SRK100VNPZSX Model Item Indoor unit SRK50ZSX-S (2 units) Outdoor unit FDC100VN Power source 1 Phase 220-240V 50Hz / 220V 60Hz Nominal cooling capacity (range) 10.0 [ 4.0(Min.)-11.2(Max.)] Nominal heating capacity (range) 11.2 [ 4.0(Min.)-12.5(Max.)] Cooling 2.84...
Page 158 '17 • PAC-T-257 SRK125VNPZSX Model Item Indoor unit SRK60ZSX-S (2 units) Outdoor unit FDC125VN Power source 1 Phase 220-240V 50Hz / 220V 60Hz Nominal cooling capacity (range) 12.5 [ 5.0(Min.)-14.0(Max.)] Nominal heating capacity (range) 14.0 [ 4.0(Min.)-16.0(Max.)] Cooling 4.25 Power consumption Heating 4.29 Max power consumption...
Page 159 '17 • PAC-T-257 SRK140VNTZSX Model Item Indoor unit SRK50ZSX-S (3 units) Outdoor unit FDC140VN Power source 1 Phase 220-240V 50Hz / 220V 60Hz Nominal cooling capacity (range) 14.0 [ 5.0(Min.)-14.5(Max.)] Nominal heating capacity (range) 16.0 [ 4.0(Min.)-16.5(Max.)] Cooling 4.53 Power consumption Heating 4.05 Max power consumption...
Page 160 '17 • PAC-T-257 SRK100VSPZSX Model Item Indoor unit SRK50ZSX-S (2 units) Outdoor unit FDC100VS Power source 3 Phase 380-415V 50Hz / 380V 60Hz Nominal cooling capacity (range) 10.0 [ 4.0(Min.)-11.2(Max.)] Nominal heating capacity (range) 11.2 [ 4.0(Min.)-12.5(Max.)] Cooling 2.84 Power consumption Heating 2.86 Max power consumption...
Page 161 '17 • PAC-T-257 SRK125VSPZSX Model Item Indoor unit SRK60ZSX-S (2 units) Outdoor unit FDC125VS Power source 3 Phase 380-415V 50Hz / 380V 60Hz Nominal cooling capacity (range) 12.5 [ 5.0(Min.)-14.0(Max.)] Nominal heating capacity (range) 14.0 [ 4.0(Min.)-16.0(Max.)] Cooling 4.25 Power consumption Heating 4.29 Max power consumption...
Page 162 '17 • PAC-T-257 SRK140VSTZSX Model Item Indoor unit SRK50ZSX-S (3 units) Outdoor unit FDC140VS Power source 3 Phase 380-415V 50Hz / 380V 60Hz Nominal cooling capacity (range) 14.0 [ 5.0(Min.)-14.5(Max.)] Nominal heating capacity (range) 16.0 [ 4.0(Min.)-16.5(Max.)] Cooling 4.53 Power consumption Heating 4.05 Max power consumption...
Page 163: Exterior Dimensions
'17 • PAC-T-257 2.2 EXTERIOR DIMENSIONS (1) Indoor units ………………………………………………………………………………………………… See page 10. (2) Outdoor units Models FDC100VN, 125VN, 140VN FDC100VS, 125VS, 140VS PCA001Z535 (3) Remote control (Option parts) ………………………………………………………………………… See page 12.
Page 164: Electrical Wiring
'17 • PAC-T-257 2.3 ELECTRICAL WIRING (1) Indoor units ………………………………………………………………………………………………… See page 15. (2) Outdoor units Models FDC100VN, 125VN, 140VN PCA001Z539...
Page 165 '17 • PAC-T-257 Models FDC100VS, 125VS, 140VS PCA001Z540...
Page 166: Noise Level
'17 • PAC-T-257 2.4 NOISE LEVEL Notes(1) The data are based on the following conditions. Ambient air temperature: Indoor unit 27℃WB. Outdoor unit 35℃DB. (2) The data in the chart are measured in an anechoic room. (3) The noise levels measured in the field are usually higher than the data because of reflection. (1) Indoor units ……………………………………………………………………………………...
Page 167: Piping System
'17 • PAC-T-257 2.5 PIPING SYSTEM (1) Twin type Models 100, 125 Gas branch pipe (φ12.7) Indoor unit Indoor unit Outdoor unit Cooling cycle Heating cycle Check joint Temperature sensor (ThO-A) Gas line (φ15.88) Service valve (Flare connecting) Flare connecting Check joint 4-way valve Heat...
Page 168 '17 • PAC-T-257 Preset point of the protective devices Equipped Parts name Mark 100, 125, 140 models unit Temperature sensor OFF 16˚C (for protection over- Th 1 ON 17˚C loading in heating) Indoor unit Temperature sensor OFF 8˚C Th 2 (for frost prevention) ON 2.5˚C Temperature sensor...
Page 169: Range Of Usage & Limitations
'17 • PAC-T-257 2.6 RANGE OF USAGE & LIMITATIONS See next page. Operating temperature range When used below -5˚C, install a snow hood Considering to get sufficient heating capacity, the area where the averaged lowest ambient Recommendable area to install air temperature in day time during winter is above 0˚C, and it has no accumulation of snow.
Page 170 '17 • PAC-T-257 Operating temperature range ■ Cooling 43℃DB Usage range in cooling -15℃DB Indoor air temperature (℃WB) ■ Heating Usage range in heating Outdoor air temperature (℃WB) Decline in cooling and heating capacity or operation stop may occur when the outdoor unit is installed in places where natural wind can increase or decrease its design air flow rate.
Page 171 '17 • PAC-T-257...
Page 172 '17 • PAC-T-257...
Page 173: Selection Chart
'17 • PAC-T-257 2.7 SELECTION CHART Correct the cooling and heating capacity in accordance with the operating conditions. The net cooling and heating capacity can be obtained in the following way. Net capacity = Capacity shown in the capacity tables (2.7.1) × Correction factors shown in the table (2.7.2) (2.7.3) (2.7.4). Caution: In case that the cooling operation during low outdoor air temperature below -5°C is expected, install the outdoor unit where it is not influenced by natural wind.
Page 174 '17 • PAC-T-257 SRK125VNPZSX Model Indoor unit SRK60ZSX-S (2 units) Outdoor unit FDC125VN (kW) (kW) Cooling Mode Heating Mode:HC Indoor air temperature Outdoor Indoor air temperature Outdoor air temp. 18 DB 21 DB 23 DB 26 DB 27 DB 28 DB 31 DB 33 DB air temp.
Page 175 '17 • PAC-T-257 (2) Triple type SRK140VNTZSX Model Indoor unit SRK50ZSX-S (3 units) Outdoor unit FDC140VN (kW) (kW) Cooling Mode Heating Mode:HC Indoor air temperature Indoor air temperature Outdoor Outdoor air temp. 18 DB 21 DB 23 DB 26 DB 27 DB 28 DB 31 DB...
Page 176 '17 • PAC-T-257 [References data] 　Capacity variation against outdoor and indoor temperature at rated capacity condition. Ⅰ Models FDC100, 125, 140VN, 100, 125, 140VS ① Cooling Indoor air temperature 24℃WB Indoor air temperature 19℃WB Indoor air temperature 15℃WB Indoor air temperature 12℃WB Indoor air temperature 17℃WB...
Page 177: Correction Of Cooling And Heating Capacity In Relation To Air Flow Rate Control (Fan Speed)
'17 • PAC-T-257 2.7.2 Correction of cooling and heating capacity in relation to air flow rate control (fan speed) Fan speed 1.00 0.97 0.95 Coefficient 2.7.3 Correction of cooling and heating capacity in relation to one way length of refrigerant piping It is necessary to correct the cooling and heating capacity in relation to the one way equivalent piping length between the indoor and outdoor units.
Page 178: Application Data
'17 • PAC-T-257 2.8 APPLICATION DATA 2.8.1 Installation of indoor unit …………………………………………… See page 32. 2.8.2 Installation of wired remote control (Option) …………………… See page 36. 2.8.3 Installation of outdoor unit ………………………………………… See page 49. 2.8.4 Installation for branching pipe set (DIS-WA1, WB1, TA1, TB1) … See page 57.
Page 179: Outline Of Operation Control By Microcomputer
'17 • PAC-T-257 2.9 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER 2.9.1 Remote control ………………………………………………………… See page 60. 2.9.2 Operation control function by the wired remote control ……… See page 63. 2.9.3 Operation control function by the indoor control ……………… See page 66.
Page 180: Operation Control Function By The Outdoor Control
'17 • PAC-T-257 2.9.4 Operation control function by the outdoor control Models FDC100-140VN, 100-140VS (1) Determination of compressor speed (Frequency) Required frequency (a) Cooling/dehumidifying operation Unit: rps Model FDC100 FDC125 FDC140 Usual operation Max. required frequency Silent mode, outdoor temperature ≦15°C Min.
Page 181: Compressor Soft Start Control
'17 • PAC-T-257 Compressor soft start control (a) Compressor protection start I [Control condition] Normally, the compressor operation frequency is raised in this start pattern. [Control contents] (i) Starts with the compressor’s target frequency at A rps. However, when the ambient air temperature (Tho-A) is 35°C or higher during cooling/ dehumidifying or the indoor return air temperature (Th1) is 25°C or higher during heating, it starts at C rps.
Page 182 '17 • PAC-T-257 (c) Fan tap control during heating operation Fan taps are selected depending on the outdoor unit heat exchanger temperature (Tho-R1, R2) and the outdoor air temperature (Tho-A). Note (1) It is detected by Tho-R1 or R2, whichever the lower. Note (1) If the “silent mode start”...
Page 183 '17 • PAC-T-257 (e) Outdoor unit fan control by the power transistor radiator fin temperature When all the following conditions are established later than 3 minutes after the start of compressor, the following control is implemented. Cooling/dehumidifying 1) Outdoor air temperature Tho-A 33°C A rps 2) Compressor’s actual frequency C °C...
Page 184: Defrost Operation
'17 • PAC-T-257 Model 71 ~ 250 Outdoor air temp. (℃)［Tho-A］ Defrost operation Model 71 (a) Starting conditions If all of the following defrost conditions A or conditions B are satisfied, the defrost operation starts. Defrost conditions A Cumulative compressor operation time after the end of defrost operation has elapsed 37 minutes, Defrost operation start and the cumulative compressor operation time...
Page 185: Protective Control/Anomalous Stop Control By Compressor S Number Of Revolutions
'17 • PAC-T-257 Protective control/anomalous stop control by compressor’s number of revolutions (a) Compressor discharge pipe temperature protection Protective control As the discharge pipe temperature (detected with Tho-D) exceeds the setting value, the compressor speed (frequency) is controlled to suppress the rise of discharge pipe temperature. Reduces compressor speed at each minute.
Page 186 '17 • PAC-T-257 (d) Anomaly detection control by the high pressure switch (63H1) If the pressure rises and operates the high pressure switch (opens at 4.15MPa/closes at 3.15MPa), the compressor stops. (ii) Under any of the following conditions, E40 is displayed and it enters the anomalous stop mode. When it occurs 5 times within 60 minutes that pressure rises and the compressor is stopped by 63H1.
Page 187 '17 • PAC-T-257 (h) Power transistor temperature protection Protective control (single phase model only) If the power transistor temperature (detected with TIP) exceeds the setting value, the compressor speed (frequency) is controlled to suppress the rise of power transistor temperature. Reduces compressor frequency at each minute.
Page 188: Silent Mode
'17 • PAC-T-257 (n) Broken wire detection on temperature thermistor and low pressure sensor Outdoor unit heat exchanger thermistor, outdoor air thermistor and low pressure sensor If the following is detected for 5 second continuously within 2 minutes to 2 minutes and 20 seconds after the compressor ON, the compressor stops.
Page 189: Pump-Down Control
'17 • PAC-T-257 Pump-down control Turning ON the pump-down switch SW1 for 2 seconds during the operation stop or anomalous stop (excluding the thermostat OFF), the pump-down operation is performed. (This is invalid when the indoor unit is operating. This is effective even when the indoor unit is stopped by the anomalous stop or the power source is turned OFF.) (a) Contents of control Close the service valve at the liquid side.
Page 190: Technical Information
Rated air flow(outdoor) 4500 m3/h Contact details for obtaining Name and address of the manufacturer or of its authorised representative. more information Mitsubishi Heavy Industries Air-Conditioning Europe, Ltd. 7 Roundwood Avenue, Stockley Park, Uxbridge, Middlesex, UB11 1AX, United Kingdom PCA001Z717...
Page 191 Rated air flow(outdoor) 4500 m3/h Contact details for obtaining Name and address of the manufacturer or of its authorised representative. more information Mitsubishi Heavy Industries Air-Conditioning Europe, Ltd. 7 Roundwood Avenue, Stockley Park, Uxbridge, Middlesex, UB11 1AX, United Kingdom PCA001Z717...
Page 192 '17 • PAC-T-257 3. OPTION PARTS CONTENTS ............192 (1) SIMPLE WIRED REMOTE CONROL (RCH-E3) (2) INTERFACE KIT .....................198 (a) Interface kit (SC-BIKN-E) .................198 (b) Cable connection for SRK twin / triple installation ........202 (3) SUPERLINK E BOARD (SC-ADNA-E) ..............203...
Page 193: Simple Wired Remote Conrol (Rch-E3)
'17 • PAC-T-257 (1) SIMPLE WIRED REMOTE CONTROL (RCH-E3) Names and functions of sections Remo Remote control sensor ON/OFF button Operation/Inspection lamp Button to start/stop the air - conditioner During operation: Green failure: Red Wiring o (In case of embe 12×7 slo MODE button Use to select the mode.
Page 194 '17 • PAC-T-257 MITSUBISHI HEAVY INDUSTRIES,LTD. AIR-CONDITIONING & REFRIGERATION SYSTEMS HEADQUARTERS Remote control installation dimensions In case of embedding wiring Wall surface Wiring Wiring outlet Electrical box (In case of embedding wiring) （Prepare on site） 12×7 slot hole Installation hole 9×4.5 slot hole （2 places）...
Page 195 '17 • PAC-T-257 3. Master/ In case of exposing cord Simple Remote Control Installation Manual PJZ012D069 ⑴　 Make certain to remove a screw on the bottom surface of the ⑴　 Up to two remote control. Read together with indoor unit's installation manual. WARNING ⑴...
Page 196 '17 • PAC-T-257 3. Master/ slave setting when more than one remote control are used ⑴　 Up to two remote controls can be connected to one unit (or one group) of indoor unit. Switch Setting Function detail Slave remote control indoor unit SW1-1 Master remote control...
Page 197 unit. (No polarity of X and Y) 100 - 200m･････････････････0.5mm × 2 cores Under 300m･････････････････0.75mm × 2 cores ⑹　 Mount the upper case for restoring to its former state so as not to crimp the remote control cord, Under 400m･････････････････1.25mm ×...
Page 198 t failure. “88” blinks on the temperature setting indicator. (blinking for approximately 2 to 10 seconds while × 2 cores data is read) Then, the return air temperature is displayed. When AIR CON No. is pressed, return × 2 cores to the indoor unit selection display (example, “U 000”).
Page 199: Interface Kit
'17 • PAC-T-257 (2) INTERFACE KIT (a) Interface kit (SC-BIKN-E) RKZ012A088B Accessories included in package Safety precautions Before use, please read these Safety Precautions thoroughly before installation. Be sure to check all the accessories included in package. ●All the cautionary items mentioned below are important safety related items to be taken into consideration, so be sure to observe them at all times.
Page 200 '17 • PAC-T-257 Installation of the interface ・Install the interface within the range of the connection cable length (approximately 1.3m) from the indoor unit. Wiring inlet ・Be sure not to extend the connection cable on site. If the connection cable is extended, malfunction may occur. ・Fix the interface on the wall, pillar or the like.
Page 201 '17 • PAC-T-257 Functions of CnT connector It is available to operate the air-conditioner unit and to monitor the operation status with the external control unit (remote display) by sending the input/output signal through CnT connector on the indoor control PCB. 0.3mm ×2m 0.75mm...
Page 202 '17 • PAC-T-257 Connection of wired remote control Regarding the connection of wired remote control, refer to the instruction manual of wired remote control. ①Switch ON the DIP switch SW2-2 (Factory setting : ON) on the interface PCB. DIP suitch Caution:Wireless remote control attached to the indoor unit can be used in parallel, after connecting the wired remote control.
Page 203: (B) Cable Connection For Srk Twin / Triple Installation
'17 • PAC-T-257 (b) Cable connection for SRK twin / triple installation Connect the same pairs number of terminal block " , ,and "and " " between master and slave indoor units. Do the same address setting of all inside units belong to same refrigerant system by rotary switch SW1 on SC-BIKN-E’s PCB (Printed circuit board).
Page 204: Superlink E Board (Sc-Adna-E)
'17 • PAC-T-257 (3) SUPERLINK E BOARD (SC-ADNA-E) Superlink Superlink ground Superlink Superlink air-conditioner Superlink Superlink Superlink...
Page 205 '17 • PAC-T-257 Superlink Superlink...
Page 206 MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD. 16-5 Konan 2-chome, Minato-ku, Tokyo, 108-8215, Japan http://www.mhi-mth.co.jp/en/ Because of our policy of continuous improvement, we reserve the right to make changes in all specifications without notice. Copyright MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.

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Mitsubishi Heavy Industries SRK100VNXPZSX Technical Manual

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