Panasonic R410A - Manuals

iv 3-2. Use R410A exclusive cylinder only. When charging with a refrigerant cylinder, use an electronic scale for charging refrigerant. In this case,if the volume of refrigerant in the cylinder becomes less than 20% of the fully-charged amount, thecomposition of the refrigerant starts to change. Thu...

vi Section 1: SPECIFICATIONS ..................................................................................................... 1-1 1-1 Unit SpecifIcations .............................................................................................. 1-2 1-2 Major Component SpecifIcations ..........

1. SPECIFICATIONS 1-1. Unit Specifications.................................................................................................... 1-2 1-2. 1-20 Major Component Specifications .......................................................................... 1-63 1-3. 1-35 Other Component Specif...

1-2 1. Specifications 1-1 Unit Specifications 4-Way Cassette Type Cooling: Rating conditions (*) : Room temperature 80 °F DB / 67 °F WB, Ambient temperature 95 °F DB / 75 °F WB Heating: Rating conditions (*) : Room temperature 70 °F DB / 60 °F WB, Ambient temperature 47 °F DB / 43 °F WBLow temp cond...

1-20 1. Specifications 1-2 Major Component Specifications (A) Indoor Unit MODEL No . S-26PU1U6 Source 230 - 208 VAC / 1 phase / 60 Hz Remote c o n t r o l l e r ( S u p p l i e d / O p t i o n a l ) Wired / Wireless (See Unit Specifications) Controller P. C. B Ass'y CR-26PU1U6-P Control circuit fuse...

1-27 1. Specifications 1-2 Major Component Specifications (A) Indoor Unit MODEL No . S-26PF1U6 Source 230 - 208 V / 1 phase / 60 Hz Remote controller ( S u p p l i e d / O p t i o n a l ) Wired / Wireless (See Unit Specification) Controller P. C. B Ass'y CR - TH2672 Control circuit fuse 250 V, 5 A F...

1-35 1. Specifications 1-3 Other Component Specifications Outdoor Unit U-26PE1U6, U-26PS1U6 . o N L E D O M Thermistor (Coil sensor) : TH2 to 5 Coil resistance k Ω 14 ° F : 23.7 , 50 ° F : 9.7 23 ° F : 18.8 , 68 ° F : 6.5 32 ° F : 15.0 , 86 ° F : 4.4 41 ° F : 12.1 , 104 ° F : 3.1 113 ° F : 2.6 Therm...

1-37 1. Specifications U-42PE1U6, U-42PS1U6 . o N L E D O M Thermistor (Coil sensor) : TH2 to 5 Coil resistance k Ω 14 ° F : 23.7 , 50 ° F : 9.7 23 ° F : 18.8 , 68 ° F : 6.5 32 ° F : 15.0 , 86 ° F : 4.4 41 ° F : 12.1 , 104 ° F : 3.1 113 ° F : 2.6 Thermistor (Comp. discharge gas sensor) : TH6 Coil re...

1-40 1. Specifications 1-4 Dimensional data Dimension : inch Refrigerant liquid line (3/8") Flare connectionRefrigerant gas line (5/8") Flare connectionDrain hose OD 45/64 Drain and wiring port (3-5/32) Indoor unit : Wall Mounted Type 1 SM830203-01̲PAC-i̲US-letter.indb40   40 SM830203-01̲PAC...

1-41 1. Specifications 1-4 Dimensional data Indoor unit : Ceiling Type 26 Type Drain connectionDrain connection for left sideRefrigerant liquid line (3/8") Flare connectionRefrigerant gas line (5/8") Flare connectionHole for rear side refrigerant tubingHole for through-the-wall refrigerant t...

1-43 1. Specifications 1-4 Dimensional data Indoor unit : Low Silhouette Duct Type 26 Type Refrigerant liquid line (3/8") Flare connectionRefrigerant gas line (5/8") Flare connectionUpper drain port (O.D. 1-1/4)Bottom drain port (O.D. 1-1/32)Suspension lugPower supply inlet (conduit size 1/2...

1-45 1. Specifications 23/32 1-7/32 F G H G F 11/32 E D B (O.D.) A (Hole) C-ø1/8 (Hole) 1/4 (Hole) 12-1/32 10-1/4 (O.D.) 29/32 7-7/8 1-25/32 5/16 1-25/32 31/32 13/32 2118_U_I 2-ø1/8 13/32 31/32 8-9/32 31/32 A B C* * ø 1/8 Number of holes D E F G H I 26 type 39-9/32 37-7/8 5 7-3/32 5 × 7-3/32 = 35-7/...

1-46 1. Specifications 1-4 Dimensional Data (B) Outdoor Unit: U-26PE1U6, U-26PS1U6 U-36PE1U6, U-36PS1U6 1 SM830203-01̲PAC-i̲US-letter.indb46   46 SM830203-01̲PAC-i̲US-letter.indb46   46 2012/01/19   22:39:25 2012/01/19   22:39:25

1-48 1. Specifications 1-5 Refrigerant Flow Diagram Outdoor Unit : U-26PE1U6, U-26PS1U6 Indoor Unit : 26, 30, 36 Types U-36PE1U6, U-36PS1U6 SM830203-00̲PAC-i̲US-letter.indb48   48 2011/11/09   20:22:21 1 SM830203-01̲PAC-i̲US-letter.indb48   48 SM830203-01̲PAC-i̲US-letter.indb48   48 2012/01/19   22:...

1-49 1. Specifications 1-5 Refrigerant Flow Diagram Outdoor Unit: U-42PE1U6, U-42PS1U6 Indoor Unit: 42 Type 1-6 Operating Range Temperature Indoor Air Intake Outdoor Air Intake Cooling Maximum 90 ° F DB / 77 ° F WB 115 ° F DB Minimum 64 ° F DB / 57 ° F WB 14 ° F DB Heating Maximum 86 ° F DB 64 ° F W...

1-51 1. Specifications 1-8 Noise Criterion Curves 4-Way Cassette Type MODEL : S-26PU1U6 SOUND LEVEL : HIGH 38 dB(A), NC 31 LOW 31 dB(A), NC 23 CONDITION : Center, Under the unit 4.9 ft. SOURCE : 208 - 230 V, 1 Phase, 60 Hz MODEL : S-42PU1U6 SOUND LEVEL : HIGH 45 dB(A), NC 38 LOW 34 dB(A), NC 27 COND...

1-52 1. Specifications 1-8 Noise Criterion Curves Wall Mounted Type SOURCE : 208 - 230 V, 1 Phase, 60 Hz CONDITION : Distance 3.3 ft., Under the unit 3.3 ft. S-26PK1U6 1 SM830203-01̲PAC-i̲US-letter.indb52   52 SM830203-01̲PAC-i̲US-letter.indb52   52 2012/01/19   22:39:26 2012/01/19   22:39:26

1-55 1. Specifications 1-8 Noise Criterion Curves Outdoor Units REMARKS: 1. Value obtained in the actual place where the unit is installed may be slightly higher than the values shown in this graph because of the conditions of operation, the structure of the building, the background noise andother f...

1-56 1. Specifications 1-9 Increasing the Fan Speed Jumper cable Jumper cable Electrical component box (At shipment) (Jumper cable installed) 2159_M_I Fan motor socket Fan motor 900 Air Flow (CFM) External Static Pressure 0 50 0 0.1 0.2 0.3 0.4 0.5 150 700 500 300 Limit line L 100 1982_U_I H HH (Pa)...

1-57 1. Specifications 1-10 Air throw distance chart 4-Way Cassette Type 0 3 7 10 13 17 20 0 3 7 10 13 HORIZONTAL DISTANCE (ft.) AXIS AIR VELOCITY (ft./sec) VER TICAL DIST ANCE (ft.) AXIS AIR VELOCITY 2111_X_I Model: 26 Type Model: 36, 42 Type : LOUVER ANGLE 20˚ in Cooling mode : LOUVER ANGLE 60˚ in...

1-58 1. Specifications 1-10 Air throw distance chart Wall Mounted Type COOLING - - - - - HEATING FAN SPEED HIGH HIGH ROOM AIR TEMP. 80 ° F 70 ° F FLAP ANGLE 0 ° , 22.5 ° , 45 ° 45 ° , 67.5 ° Axis air velocity (ft./sec.) Vertical distance (ft.) Horizontal distance (ft.) 10 13 5 0 Model: 26 Type 1 SM8...

1-61 1. Specifications Inter-unit power wiring Power wiring Inter-unit control wiring 8P terminal board Outdoor Unit Indoor Unit U1 U2 1 2 G L1 L2 Wiring System Diagrams Basic wiring diagram for standard control NOTE Disconnect switch may be needed by the National/Local code. ALWAYS COMPLY WITH NATI...

1-62 1. Specifications WARNING Loose wiring may cause theterminal to overheat or resultin unit malfunction. A firehazard may also exist.Therefore, ensure that allwiring is tightly connected. How to Connect Wiring to the Terminal For stranded wiring (1) Cut the wire end with a wire cutter or wire-cut...

1-63 1. Specifications 1-12. Installation Instructions 1. Tubing Size Outdoor Unit Single type Refrigerant tubing between the indoor and outdoor unitsshould be kept as short as possible.The length of the refrigerant tubes between the indoorand outdoor units are limited by the elevation differencebet...

1-64 1. Specifications CAUTION 1. This unit requires no additional refrigerant charge up to 100 ft. tubing length. In case of more than 100 ft., additional refrigerant charge is required. Refer to Table 1-3. 2. In case of multi type installation, indoor units should be installed within the same room...

1-65 1. Specifications 3. SELECTING THE INSTALLATION SITE 3-1. Outdoor Unit AVOID: heat sources, exhaust fans, etc. (Fig. 1-3) damp, humid or uneven locations DO: choose a place as cool as possible. choose a place that is well ventilated and outside air temperature does not exceed maximum 115°F cons...

1-69 1. Specifications Reference diagram for air-discharge chamber (fi eld supply) U-26PE(S)1U6 / U-36PE(S)1U6 / U-42PE(S)1U6 Required space around outdoor unit If the air discharge chamber is used, the space shown below must be secured around the outdoor unit.If the unit is used without the require...

1-71 1. Specifications Dimensions of outdoor unit with snow-proof vents (fi eld supply) U-26PE(S)1U6 / U-36PE(S)1U6 unit U-42PE(S)1U6 unit 11-57/64 16-47/64 15-15/16 14-61/64 2 5/64 19/3 2 25/32 30-5/64 25-25/64 7-3/64 3/4 30-45/64 37-1/64 Wind direction Wind direction Wind direction Wind direction ...

1-72 1. Specifications Reference diagram for snow-proof vents – 1 Space requirements for setting – (1) U-26PE(S)1U6 / U-36PE(S)1U6 / U-42PE(S)1U6 ] t i n u f o t n o r f e h t o t e l c a t s b O [ ] t i n u f o r a e r e h t o t e l c a t s b O [ : n e p o s i p o T : n e p o s i p o T Top is block...

1-74 1. Specifications 4. HOW TO INSTALL THE OUTDOOR UNIT 4-1. Installing the Outdoor Unit Use concrete or a similar material to create the base, and ensure good drainage. Ordinarily, ensure a base height of 2". or more. If a drain pipe is used, or for use in cold-weather regions, ensure a heigh...

1-75 1. Specifications 5. SELECTING THE INSTALLATION SITE 5-1. Indoor Unit AVOID: areas where leakage of flammable gas may be expected. places where large amounts of oil mist exist. direct sunlight. locations near inverter lamps which may affect the performance of the unit. locations near heat sourc...

1-76 1. Specifications 6. HOW TO INSTALL THE INDOOR UNIT 4-Way Cassette Type(U1 Type) 6-1. Suspending the Indoor Unit This unit uses a drain pump. Use a level gauge to check that the unit is level. 6-2. Preparation for Suspending (1) Fix the suspension bolts securely in the ceiling using the method ...

1-82 1. Specifications 6-9. Duct for Fresh Air There is a duct connection part on side of the indoor unit. (Fig. 1-27) (1) Accessories Check that the following parts are in the box when unpacking. (2) Installation Fit the duct connection box into the rectangular hole of air-intake plenum with the ac...

1-83 1. Specifications (d) Installing the ceiling panel Attach the ceiling panel to the air-intake plenum. Drawing the panel downwards sets the panel in position temporarily with the panel catch (at 2 locations). Remove the socket cover of the air-intake plenum and pass the 8P sockets through it. (F...

1-84 1. Specifications Wall Mounted Type (K1 Type) 6-10. Removing the Wall Fixture from the Unit Remove the set screws and take off the rear panel. (Fig. 1-30) N O T E Tubing can be extended in 3 directions as shown in Fig. 1-31. Select the direction that provides the shortest run to the outside uni...

1-85 1. Specifications 6-12. Installing the Rear Panel on the Wall Be sure to confirm that the wall is strong enough to suspend the unit. See either Item a) or b) below depending on the wall type. a) If Wooden Wall (1) Attach the rear panel to the wall with the 10 screws pro- vided. (Fig. 1-36) If y...

1-86 1. Specifications 6-13. Removing the Grille to Install the Indoor Unit Basically, these models can be installed and wired without removing the grille. If access to any internal part is needed, follow the steps given below: How to remove the grille (1) Set the 2 flaps in the horizontal position....

1-88 1. Specifications 6-17. Shaping the Tubing (1) Shape the refrigerant tubing so that it can easily go into the hole. (Fig. 1-45) (2) Push the wiring, refrigerant tubing and drain hose through the hole in the wall. Adjust the indoor unit so it is securely seated on the wall fixture. (3) Carefully...

1-92 1. Specifications 6-20. Duct for Fresh Air There is a duct connection port (knock-out hole) at the right-rear on the panel top of the indoor unit for drawing in fresh air. If it is necessary to draw in fresh air, remove the cover by knocking it out and connect the duct to the indoor unit throug...

1-93 1. Specifications Low Silhouette Ducted Type (F1 Type) 6-22. Required Minimum Space for Installation and Service This air conditioner is usually installed above the ceiling so that the indoor unit and ducts are not visible. Only the air intake and air outlet ports are visible from below. The mi...

1-95 1. Specifications Fig. 1-73 shows an example of installation. 6-24. Installing the Drain Piping (1) Prepare standard hard PVC pipe for the drain and use the supplied hose band to prevent water leaks. The PVC pipe must be purchased separately. When doing this, leave a gap between the drain socke...

1-97 1. Specifications 6-26. Increasing the Fan Speed If external static pressure is too great (due to long extension of ducts, for example), the air flow volume may drop too low at each air outlet. This problem may be solved by increasing the fan speed using the following procedure: (1) Remove 4 sc...

1-98 1. Specifications 6-27. When Installing the Indoor Unit Confirm that the indoor unit should be installed in a horizontal position. Use the level gauge or vinyl tube and check every four corner of the unit is in horizontal. If the air outlet duct flange is positioned with downward gradient, ther...

1-100 1. Specifications 7. HOW TO INSTALL THE WIRELESS REMOTE CONTROLLER I M P O R TA N T When using this air conditioner with the wireless remote controller it may sometimes be impossible to change the operation modes while other indoor unit is running. When this happens, a double beep tone sounds,...

1-101 1. Specifications 7-2. Room Temperature Sensor Setting The room temperature sensors are built into the indoor unit and the wireless remote controller. Either of these room temperature sensors can operate.The system is shipped from the factory set to the indoor unit sensor. To switch to the rem...

1-102 1. Specifications <CZ-RWSU1U> 4-Way Cassette Type (U1 Type) 7-5. Indicator Section Installation Remove the ceiling panel and indicator cover and install the indicator section. (1) Remove the ceiling panel. (2) Remove the corner cover behind the mark section. (3 screws) (3) Remove the mar...

1-104 1. Specifications 7-9. Electrical Wiring 7-10-1. How to use the test run setting (U1, T1 Types) (1) Set DIP switch [DS] No. 1 on the wireless receiver unit PCB from OFF to the ON position. (2) Press the ON/OFF operation button on the wireless remote controller. (3) Make a test run using the ai...

1-105 1. Specifications 7-11. Misoperation Alarm Indicators Alarm indicator lamps on the indoor unit indicate the error cause if the air conditioner fails to operate upon being switched on. The possible alarm indications are given in Table 1-9. Fig. 1-95 shows the location of the alarm lamps on the ...

1-106 1. Specifications <CZ-RWSC1U> CAUTION If the signal receiving unit is installed near a rapid-start or inverter type fluorescent lamp (neither one uses glow lamps), it may be impossible to receive signals from the wireless remote controller. To avoid signal interference from fluorescent l...

1-108 1. Specifications 7-13. Electrical Wiring CAUTION Be sure to do the wiringcorrectly (incorrectwiring will damage theequipment). Recommended wire diameter and allowable length for signal receiving unit wiring and its branch wiring:AWG #18, MAX 1,300 ft. 7-14. Test Run Switch (1) Remove the cove...

1-110 1. Specifications 7-16. Basic Wiring Diagram CAUTION Be sure to do the wiringcorrectly (incorrect wiringwill damage the equipment). Wiring procedure Carry out the wiring according to the above wiringdiagram. Address setting is automatically executed after turning on the system.An indoor unit a...

1-111 1. Specifications 7-17. Wiring System Diagram for Group Control This diagram shows when several units (maximum of8) are controlled by a signal receiving unit (mainunit). In this case, a signal receiving unit can beconnected at any indoor unit. Group control using 2 signal receiving units It do...

1-112 1. Specifications 7-18. Wiring System Diagram for Multiple Remote Controllers To operate 1 indoor unit with 2 signal receiving units set at different locations. CAUTION Carry out the wiring correctly(incorrect wiring will damagethe equipment). When installing multiple remote controllers This m...

1-113 1. Specifications <CZ-RWSK1U> 7-19. Test Run Procedure Wall mounted Type (K1 Type) 7-20. Check Items Before the Test Run (1) Turn ON the remote power switch at least 12 hours before the test run in order to charge the crankcase heater. (2) Fully open the service valves on the gas-tube an...

1-114 1. Specifications 7-21. Preparing for the Test Run 7-21-1. Changing the room temperature sensor Room temperature sensors are installed inside the indoor unit and the wireless remote controller. Either room temperature sensor can be used. When “Unit Sensor” is indicated on the wireless remote c...

1-118 1. Specifications 1-13. HOW TO PROCESS TUBING 8. HOW TO INSTALL THE TIMER WIRED REMOTE CONTROLLER The liquid tubing side is connected by a flare nut, and Refer to the Instraction Manual attaehed to the Timer Remote Controller. the gas tubing side is connected by brazing. 1. Connecting the Refr...

1-119 1. Specifications Caution Before Connecting Tubes Tightly (1) Apply a sealing cap or water-proof tape to prevent dust or water from entering the tubes before they are used. (2) Be sure to apply refrigerant lubricant to the matching surfaces of the fl are and union before connecting them togeth...

1-121 1. Specifications 4. Taping the Tubes (1) At this time, the refrigerant tubes (and electrical wiring if local codes permit) should be tapedtogether with armoring tape in 1 bundle. Toprevent condensation from overfl owing the drainpan, keep the drain hose separate from therefrigerant tubing. (2...

1-122 1. Specifications 1-14. LEAK TEST, EVACUATION AND ADDITIONAL REFRIGERANT CHARGE Perform an air-tightness test for this package A/C. Check that there is no leakage from any of the connections. Air and moisture in the refrigerant system may have undesirable effects as indicated below. pressure i...

1-123 1. Specifications (3) Pressurize the system up to 4.15 MPa (42 kgf/cm 2 G) with dry nitrogen gas and close the cylinder valve when the gauge reading reaches4.15 MPa (42 kgf/cm 2 G). Then, test for leaks with liquid soap. CAUTION To avoid nitrogen entering therefrigerant system in a liquidstate...

1-124 1. Specifications CAUTION To avoid gas from leakingwhen removing the chargehose, make sure the stemof the gas tube is turned allthe way out (“BACK SEAT”)position. 3. Charging Additional Refrigerant Charging additional refrigerant (calculated from the liquid tube length as shown in Section "...

2-1 Room Temperature Control .......................................................................................... 2-22-2 Cold Draft Prevention (Heating Cycle) ........................................................................ 2-42-3 Automatic Fan Speed (Indoor Unit) ........................

2-2 2. Processes and functions Fig. 1 (THERMO. OFF) (THERMO. ON) ROOM TEMP. THERMO. ON 5 MINUTES MORE THAN5 MINUTES 3 MINUTES SET TEMP COMPRESSOR OUTDOOR FAN (H OR M) INDOOR FAN F F O F F O F F O F F O 1 1. Refer to 2-4 Outdoor Fan Speed Control MORE THAN3 MINUTES MORE THAN5 MINUTES N O N O N O N O ...

2-4 2. Processes and functions Fig. 3 92 88 81 77 50 SETFANSPEED AUTO OR H M L LL LL/OFF LL L L L LL LL/OFF LL L M M LL LL/OFF LL L M H MAX. 6 MINUTES “STANDBY”INDICATOR INDOOR UNIT COIL TEMP. E2 ( ° F) LL= Very low speedL= Low speed M= Medium speedH= High speed “STANDBY” APPEARS 1135_THS_I Chart Su...

2-5 2. Processes and functions Fig. 4 INDOOR FAN SPEED L H M M H 1923_M_S ROOM TEMP. (deg) SET TEMP. +3 +2 +1 HM : High: Middle L : Low Chart Explanations and notes When the fan speed changes, it keeps the speed step for at least 3 minutes, even if thetemperature changes to another speed step during...

2-6 2. Processes and functions 124 142 2-4 Control Functions Electronic control valve controlOpening of the electronic control valve is controlled sothat the appropriate operating conditions are maintained,based on the signal from each sensor (dischargetemperature [TD], intake temperature [TS], outd...

2-7 2. Processes and functions 36 (36, 48 types) Overcurrent protection control (1) If the overcurrent protection circuit detects abnormal current, the compressor is stopped. (Errorcount = 1.) The compressor then restarts after 3minutes. (2) If compressor start/stop is repeated 4 times (error count ...

2-8 2. Processes and functions 1 ••••• 2 3 Defrost control Defrost sequence Heating operation (25-minute mask) Frost detection Defrost start (reverse cycle defrost) Defrost in progress Defrost cancel Start-up operation Operating frequency: 61.8 HzOutdoor unit fan: OFFElectronic control valve: step 3...

2-9 2. Processes and functions Fan motor plug (CN004) EEPROM IC MDC Heat exchanger temperature (C2) sensor Heat exchanger temperature (C1) sensor Suction temperature (TS) sensor Outdoor air temperature (TO) sensor Compressor discharge temperature (TD) sensor Refrigerant recovery switch (S005) Quiet ...

2-11 2. Processes and functions 3P plug (black): Terminal plug for the communications line• At the time of shipment from the factor y, the shor t-circuiting socket (2P, black) is installed between pins 1 and 2 on the terminal plug (terminal = yes). • When central control is used for multiple systems...

4-1. Meaning of Alarm Messages ......................................................................................... 4-24-2. Symptoms and Parts to Inspect ................................................................................... 4-54-3. Details of Alarm Messages ..........................

4-2 4. Service procedures Remote controller isdetecting error signal from indoor unit E01 E02 E10 E11 E14 E03 E08 E09 E04 E05 E06 E07 E15 E12 E16 E20 E17 E18 E31 L01 L02 L03 L04 L07 L08 L09 L10 L11 L13 Indoor unit is detecting error signal from remote controller (and system controller) Error in rece...

4-4 4. Service procedures (2) LED Indicator Messages on Outdoor Control PCB Power ON sequence 1. No communication from indoor units in system 2. Communication received from 1 or more indoor units in system 3. Regular communication OK (Capacity and unit quantity match) If it is not possible to advanc...

4-8 4. Service procedures No No No No No No No No No Yes Yes Yes Yes Yes Yes Yes Yes Yes [Alarm “P29”](MDC trouble) (1) Input power detection circuit trouble Compressor does not run. Breakdown Motor current detection circuit trouble Is power OK? Correct power line. Is current detection circuit wirin...

4-9 4. Service procedures No No No No No No No Yes Yes Yes Yes Yes Yes Yes Replace outdoor unit control PCB. (2) [Alarm “P26”] HIC PCB trouble) IGBT short-circuit protection on inverter control (IPDU) PCB Is power OK? Correct power line. Are circuit wiring, connector connections, and reactor connect...

4-10 4. Service procedures HIC + Between terminals Resistance HIC + HIC + HIC + HIC – HIC – HIC – HIC – U V W U V W Resistance 200 k Ω or more 300 k Ω or more 300 k Ω or more 300 k Ω or more 200 k Ω or more 200 k Ω or more 200 k Ω or more No Yes Replace outdoor unit control PCB. (3) [Alarm “E31”] (c...

4-11 4. Service procedures No No No No Yes Yes Yes Yes (4) [Alarm "P22"] Outdoor unit fan motor drive circuit trouble Are connectors CN003 and CN004 connected correctly to the outdoor unit control PCB? Correct the connector connections. Disconnect connectors CN003 and CN004 from outdoor unit...

4-12 4. Service procedures No No Yes Yes Check the outdoor unit control PCB. Replace if PCB has failed. Sensor trouble (5) [Alarms “F04,” “F06,” “F07,” “F08,” “F12”] Are connectors CN020, 021, 022, 023, and 024 (TD, TO, C1, C2, and TS sensors) connected correctly to the outdoor unit control PCB? Cor...

4-13 4. Service procedures Sensor installation Sensor Sensor type Sensor Sensor type s s e r d d a s s e r d d a n o i t a c o l 00 Room temp. 05 – (temp. used for control)* 01 Remote controller temp. 06 Discharge temp. Indoor unit 02 Indoor intake temp. 07 – 03 Indoor heat exchanger temp. (E1 ) 08 ...

4-14 4. Service procedures Check Pin Short-circuit the cooling check pin (or heating check pin) on the outdoor unit control PCB to perform the controldescribed below. 1. Thermistor checks The checks listed below are performed for 1 second each, in order from the top down. The results are displayedby...

5-1. Overview ......................................................................................................................... 5-25-2. Functions ................................................................................................................. ...... 5-25-3. Normal Display Op...

5-2 5. Outdoor unit maintenance remote control 5-1. Overview What is the outdoor unit maintenance remote controller? Beginning with the DC-INV series of outdoor units, nonvolatile memory (EEPROM) isused in the outdoor unit PCB. In this way, the setting switches that were located onearlier PCBs have ...

5-3 5. Outdoor unit maintenance remote control Remote controller Assy Special service checker wiring Relay connector (2P, white) PCB connector (3P, blue) RC (3P, blue) Outdoorunit PCB 5-3. Normal Display Operations and Functions Normal display functions • Connect the special service checker wiring t...

5-4 5. Outdoor unit maintenance remote control Display (functions) • Use the temperature setting and buttons to change the item code. s k r a m e R s t n e t n o c y a l p s i D e d o c m e t I 00 (1) s u t a t s l a i t i n i t A l a m r o n n e h w F F O : ) e d o c ( s t n e t n o c m r a l a t i...

5-5 5. Outdoor unit maintenance remote control *2: 7-segment, 4-digit display for remote controller timer display The connected unit Nos. are displayed as shown below, using the 7-segment 4-digit ( ) display and the colon. — — — — — — — — 1 7 1 2 1 7 2 8 1 3 1 3 8 9 1 4 1 4 9 5 10 15 20 6 1 1 1 6 21...

5-6 5. Outdoor unit maintenance remote control 5-4. Monitoring Operations: Display of Indoor Unit and Outdoor Unit Sensor Temperatures <Operating procedure> (1) Press and hold the button and button simultaneously for 4 seconds or longer to switch to temperature monitor mode.During temperature ...

5-7 5. Outdoor unit maintenance remote control 5-5. Monitoring the Outdoor Unit Alarm History: Display of Outdoor Unit Alarm History * Displays outdoor unit alarms only. Does not display indoor unit alarms. * Check the indoor unit alarm histories separately using the indoor unit remotecontrollers or...

5-8 5. Outdoor unit maintenance remote control List of Item Codes r e t e m a r a P e d o c m e t I 01 Control system schedule 02 Control system schedule 03 Control system schedule 04 Snowfall sensor operatio n 0 = No sensor, control performed 1 = No sensor, control not performed Do not set Do not s...

5-9 5. Outdoor unit maintenance remote control Setting mode 2 <Operating procedure> (1) Press and hold the button, button, and button simultaneously for 4 seconds or longer. (2) Use the temperature setting and buttons to change the item code. The item codes and setting data are shown in the ta...

6-2 6. Test run 6. TEST RUN 6-1. Preparing for Test Run Before attempting to start the air conditioner,check the following: (1) All loose matter is removed from the cabinet espe- cially steel filings, bits of wire, and clips. (2) The control wiring is correctly connected and all electrical connectio...

6-4 6. Test run 6-4. Items to Check Before the Test Run (1) (2) Turn the breaker ON at least 12 hours in advance in order to energize the crank case heater. Fully open the closed valves on the liquid tube and gas tube sides. 6-5. Test Run Using the Remote Controller (1) Press and hold the remote con...

6-6 6. Test run 6-8. Examples of Wiring Diagrams Basic wiring diagram 1 Single-type system Be careful to avoid miswiring when connecting the wires. (Miswiring will damage the units.) 1 2 1 2 0 L2 U1 RC U2 L1 U2 U1 G 1 2 System address rotary switch(Set to “0” at the time of shipment.) Outdoor unit I...

6-7 6. Test run 1 2 1 2 L2 U1 RC U2 L1 U2 U1 G 1 2 1 2 L2 U1 RC U2 L1 U2 U1 G 1 2 System address rotary switch(Set to “ 0 ” at the time of shipment.) Outdoor unit Indoor unit Wired remotecontroller WHT BLK (Optional) Remote controller wiring(Field supply) System address rotary switch(Set to “ 0 ” at...

6-8 6. Test run Setting the outdoor unit system addresses For basic wiring diagram 2 (Set the system addresses: 1, 2, 3...) ON 1 2 0 System address rotary switch(Set to “0” at time of shipment) System address rotary switch System address DIPswitch OFF ON 10s 20s 3 – 5HP Outdoorunit control PCB Fig. ...