R410A PUHZ-SW75VHA-BS.UK PUHZ-SW75VHAR3-BS.UK PUHZ-SW75VHAR4-BS.UK PUHZ-SW100VHA-BS.UK PUHZ-SW100VHAR3-BS.UK

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1 SPLIT-TYPE, AIR TO WATER HEAT PUMP SERVICE MANUAL Outdoor unit [Model Name] PUHZ-SW75VHA PUHZ-SW00VHA PUHZ-SW00YHA PUHZ-SW0VHA PUHZ-SW0YHA Salt proof model PUHZ-SW75VHA-BS PUHZ-SW00VHA-BS PUHZ-SW00YHA-BS PUHZ-SW0VHA-BS PUHZ-SW0YHA-BS [Service ref.] PUHZ-SW75VHA.UK PUHZ-SW75VHAR4.UK PUHZ-SW00VHA.UK PUHZ-SW00VHAR4.UK PUHZ-SW00YHA.UK PUHZ-SW00YHAR.UK PUHZ-SW0VHA.UK PUHZ-SW0VHAR4.UK PUHZ-SW0YHA.UK PUHZ-SW0YHAR.UK R40A PUHZ-SW75VHAR.UK PUHZ-SW00VHAR.UK PUHZ-SW00YHAR.UK PUHZ-SW00YHAR4.UK PUHZ-SW0VHAR.UK PUHZ-SW0YHAR.UK PUHZ-SW0YHAR4.UK PUHZ-SW75VHA-BS.UK PUHZ-SW75VHAR-BS.UK PUHZ-SW75VHAR4-BS.UK PUHZ-SW00VHA-BS.UK PUHZ-SW00VHAR-BS.UK PUHZ-SW00VHAR4-BS.UK PUHZ-SW00YHA-BS.UK PUHZ-SW00YHAR-BS.UK PUHZ-SW00YHAR-BS.UK PUHZ-SW00YHAR4-BS.UK PUHZ-SW0VHA-BS.UK PUHZ-SW0VHAR-BS.UK PUHZ-SW0VHAR4-BS.UK PUHZ-SW0YHA-BS.UK PUHZ-SW0YHAR-BS.UK PUHZ-SW0YHAR-BS.UK PUHZ-SW0YHAR4-BS.UK August 05 No. OCH5 REVISED EDITI-D Revision: Added PUHZ-SW75VHAR4.UK, PUHZ-SW75VHAR4-BS.UK, PUHZ-SW00VHAR4.UK, PUHZ-SW00VHAR4-BS.UK, PUHZ-SW00YHAR4.UK, PUHZ-SW00YHAR4-BS.UK, PUHZ-SW0VHAR4.UK, PUHZ-SW0VHAR4-BS. UK, PUHZ-SW0YHAR4.UK and PUHZ-SW0YHAR4-BS.UK in REVISED EDITI-D. Some descriptions have been modified. Please void OCH5 REVISED EDITI-C. Note: This manual describes service data of the outdoor units only. CTENTS. TECHNICAL CHANGES.... REFERENCE MANUAL.... SAFETY PRECAUTI FEATURES SPECIFICATIS DATA OUTLINES AND DIMENSIS WIRING DIAGRAM WIRING SPECIFICATIS REFRIGERANT SYSTEM DIAGRAM...5. TROUBLESHOOTING...7. DISASSEMBLY PROCEDURE...8 PARTS CATALOG (OCB5) PUHZ-SW75VHA.UK PUHZ-SW75VHA-BS.UK

2 TECHNICAL CHANGES Service ref. have been changed as follows. PUHZ-SW75VHAR(-BS).UK PUHZ-SW75VHAR4(-BS).UK PUHZ-SW00VHAR(-BS).UK PUHZ-SW00VHAR4(-BS).UK PUHZ-SW00YHAR(-BS).UK PUHZ-SW00YHAR4(-BS).UK PUHZ-SW0VHAR(-BS).UK PUHZ-SW0VHAR4(-BS).UK PUHZ-SW0YHAR(-BS).UK PUHZ-SW0YHAR4(-BS).UK A compliance with ErP directive Lot has been authorized. All circuit boards (C.B./P.B./N.F./CV.B) have been changed (including a change of production site). PUHZ-SW75VHA(-BS).UK PUHZ-SW75VHAR(-BS).UK PUHZ-SW00VHA(-BS).UK PUHZ-SW00VHAR(-BS).UK PUHZ-SW00YHAR(-BS).UK PUHZ-SW00YHAR(-BS).UK PUHZ-SW0VHA(-BS).UK PUHZ-SW0VHAR(-BS).UK PUHZ-SW0YHAR(-BS).UK PUHZ-SW0YHAR(-BS).UK Added a new function "Energy Monitor" which allows remote controller to display power consumption and heat output. PUHZ-SW00YHA(-BS).UK PUHZ-SW0YHA(-BS).UK Power circuit board (P.B.) has been changed. PUHZ-SW00YHAR(-BS).UK PUHZ-SW0YHAR(-BS).UK

3 REFERENCE MANUAL INDOOR UNIT SERVICE MANUAL Model name Service ref. Service manual No. EHST0C-VM6HB EHST0C-YM9HB EHST0C-TM9HB EHST0C-VMB EHST0C-VM6B EHST0C-YM9B EHST0C-VM6EB EHST0C-YM9EB EHST0C-VM6SB EHSC-VMB EHSC-VM6B EHSC-YM9B EHSC-TM9B EHSC-VM6EB EHSC-YM9EB ERSC-VMB EHST0C-VMC EHST0C-VM6C EHST0C-YM9C EHST0C-TM9C EHST0C-VMEC EHST0C-VM6EC EHST0C-YM9EC EHST0C-MHCW EHST0C-MEC ERST0C-VMC ERST0C-MEC EHSC-MEC EHSC-VMC EHSC-VMEC EHSC-VM6C EHSC-VM6EC EHSC-YM9C EHSC-YM9EC EHSC-TM9C ERSC-MEC ERSC-VMC EHST0C-VM6HB.UK EHST0C-YM9HB.UK EHST0C-TM9HB.UK EHST0C-VMB.UK EHST0C-VM6B.UK EHST0C-YM9B.UK EHST0C-VM6EB.UK EHST0C-YM9EB.UK EHST0C-VM6SB.UK EHSC-VMB.UK EHSC-VM6B.UK EHSC-YM9B.UK EHSC-TM9B.UK EHSC-VM6EB.UK EHSC-YM9EB.UK ERSC-VMB.UK EHST0C-VMC(R).UK EHST0C-VM6C(R).UK EHST0C-YM9C(R).UK EHST0C-TM9C(R).UK EHST0C-VMEC(R).UK EHST0C-VM6EC(R).UK EHST0C-YM9EC(R).UK EHST0C-MHCW(R).UK EHST0C-MEC(R).UK ERST0C-VMC(R).UK ERST0C-MEC(R).UK EHSC-MEC(R).UK EHSC-VMC(R).UK EHSC-VMEC(R).UK EHSC-VM6C(R).UK EHSC-VM6EC(R).UK EHSC-YM9C(R).UK EHSC-YM9EC(R).UK EHSC-TM9C(R).UK ERSC-MEC(R).UK ERSC-VMC(R).UK OCH5 OCH5 OCH570 OCH57

4 SAFETY PRECAUTI -. ALWAYS OBSERVE FOR SAFETY Before obtaining access to terminal, all supply circuits must disconnected. Preparation before the repair service. Precautions during the repair service. Prepare the proper tools. Prepare the proper protectors. Provide adequate ventilation. After stopping the operation of the air conditioner, turn off the power-supply breaker. Discharge the condenser before the work involving the electric parts. Do not perform the work involving the electric parts with wet hands. Do not pour water into the electric parts. Do not touch the refrigerant. Do not touch the hot or cold areas in the refrigerating cycle. When the repair or the inspection of the circuit needs to be done without turning off the power, exercise great caution not to touch the live parts. -. CAUTIS RELATED TO NEW REFRIGERANT Cautions for units utilizing refrigerant R40A Use new refrigerant pipes. In case of using the existing pipes for R, be careful with the following: Be sure to perform replacement operation before test run. Change flare nut to the one provided with this product. Use a newly flared pipe. Avoid using thin pipes. Make sure that the inside and outside of refrigerant piping is clean and it has no contamination such as sulfur hazardous for use, oxides, dirt, shaving particles, etc. In addition, use pipes with specified thickness. Contamination inside refrigerant piping can cause deterioration of refrigerant oil, etc. Store the piping indoors, and both ends of the piping sealed until just before brazing. (Leave elbow joints, etc. in their packaging.) If dirt, dust or moisture enters into refrigerant cycle, that can cause deterioration of refrigerant oil or malfunction of compressor. Use ester oil, ether oil or alkylbenzene oil (small amount) as the refrigerant oil applied to flares and flange connections. If large amount of mineral oil enters, that can cause deterioration of refrigerant oil, etc. Charge refrigerant from liquid phase of gas cylinder. If the refrigerant is charged from gas phase, composition change may occur in refrigerant and the efficiency will be lowered. Ventilate the room if refrigerant leaks during operation. If refrigerant comes into contact with a flame, poisonous gases will be released. Do not use refrigerant other than R40A. If other refrigerant (R, etc.) is used, chlorine in refrigerant can cause deterioration of refrigerant oil etc. Use a vacuum pump with a reverse flow check valve. Vacuum pump oil may flow back into refrigerant cycle and that can cause deterioration of refrigerant oil, etc. Use the following tools specifically designed for use with R40A refrigerant. The following tools are necessary to use R40A refrigerant. Tools for R40A Gauge manifold Flare tool Charge hose Size adjustment gauge Handle tools with care. If dirt, dust or moisture enters into refrigerant cycle, that can cause deterioration of refrigerant oil or malfunction of compressor. Do not use a charging cylinder. If a charging cylinder is used, the composition of refrigerant will change and the efficiency will be lowered. 4 Gas leak detector Torque wrench Use the specified refrigerant only. Vacuum pump adaptor Electronic refrigerant charging scale Never use any refrigerant other than that specified. Doing so may cause a burst, an explosion, or fire when the unit is being used, serviced, or disposed of. Correct refrigerant is specified in the manuals and on the spec labels provided with our products. We will not be held responsible for mechanical failure, system malfunction, unit breakdown or accidents caused by failure to follow the instructions.

5 [] Cautions for service () Perform service after recovering the refrigerant left in unit completely. () Do not release refrigerant in the air. () After completing service, charge the cycle with specified amount of refrigerant. (4) When performing service, install a filter drier simultaneously. Be sure to use a filter drier for new refrigerant. [] Additional refrigerant charge When charging directly from cylinder Check that cylinder for R40A on the market is a syphon type. Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.) Unit Gravimeter [] Service tools Use the below service tools as exclusive tools for R40A refrigerant. No. Tool name Specifications Gauge manifold Only for R40A Use the existing fitting specifications. (UNF/) Use high-tension side pressure of 5.MPa G or over. Charge hose Only for R40A Use pressure performance of 5.09MPa G or over. Electronic scale 4 Gas leak detector Use the detector for R4a, R407C or R40A. 5 Adaptor for reverse flow check Attach on vacuum pump. 6 Refrigerant charge base 7 Refrigerant cylinder Only for R40A Top of cylinder (Pink) Cylinder with syphon 8 Refrigerant recovery equipment 5

6 -. PRECAUTIS WHEN REUSING EXISTING R REFRIGERANT PIPES Flowchart Refer to the flowchart below to determine if the existing pipes can be used and if it is necessary to use a filter dryer. If the diameter of the existing pipes is different from the specified diameter, refer to technological data materials to confirm if the pipes can be used. Measure the existing pipe thickness and check for damage. The existing pipe thickness meets specifications and the pipes are not damaged. The existing pipe thickness does not meet specifications or the pipes are damaged. Check if the existing outdoor unit can operate. After operating the cooling system for about 0 minutes, do a pump down work. If the existing outdoor unit cannot operate, use a refrigerant recovery device to collect the refrigerant. Disconnect the existing outdoor unit from the pipes. Use new pipes for SW75, SW00 and SW0 models. Attach the new outdoor unit Perform the airtight test, vacuum air purging, additional refrigerant charging (if necessary), and gas leak check. The existing pipes cannot be reused. Use new pipes. -4. PRECAUTIS FOR SALT PROOF TYPE "-BS" MODEL Although "-BS" model has been designed to be resistant to salt damage, observe the following precautions to maintain the performance of the unit.. Avoid installing the unit in a location where it will be exposed directly to seawater or sea breeze.. If the cover panel may become covered with salt, be sure to install the unit in a location where the salt will be washed away by rainwater. (If a sunshade is installed, rainwater may not clean the panel.). To ensure that water does not collect in the base of the outdoor unit, make sure that the base is level, not at angle. Water collecting in the base of the outdoor unit could cause rust. 4. If the unit is installed in a coastal area, clean the unit with water regularly to remove any salt build-up. 5. If the unit is damaged during installation or maintenance, be sure to repair it. 6. Be sure to check the condition of the unit regularly. 7. Be sure to install the unit in a location with good drainage. 6

7 Cautions for refrigerant piping work New refrigerant R40A is adopted for replacement inverter series. Although the refrigerant piping work for R40A is same as for R, exclusive tools are necessary so as not to mix with different kind of refrigerant. Furthermore as the working pressure of R40A is.6 times higher than that of R, their sizes of flared sections and flare nuts are different. Thickness of pipes Because the working pressure of R40A is higher compared to R, be sure to use refrigerant piping with thickness shown below. (Never use pipes of 0.7mm or below.) Diagram below: Piping diameter and thickness Outside Thickness (mm) Nominal dimensions(inch) /4 /8 / 5/8 /4 diameter (mm) R40A R Dimensions of flare cutting and flare nut The component molecules in HFC refrigerant are smaller compared to conventional refrigerants. In addition to that, R40A is a refrigerant, which has higher risk of leakage because its working pressure is higher than that of other refrigerants. Therefore, to enhance airtightness and strength, flare cutting dimension of copper pipe for R40A has been specified separately from the dimensions for other refrigerants as shown below. The dimension B of flare nut for R40A also has partly been changed to increase strength as shown below. Set copper pipe correctly referring to copper pipe flaring dimensions for R40A below. For / and 5/8 inch pipes, the dimension B changes. Use torque wrench corresponding to each dimension. Dimension A Dimension B Flare cutting dimensions Nominal dimensions(inch) /4 /8 / 5/8 /4 Outside diameter (mm) +0 Dimension A ( -0.4 ) R40A R Flare nut dimensions Nominal dimensions(inch) /4 /8 / 5/8 /4 Outside diameter R40A Dimension B R (mm) Tools for R40A (The following table shows whether conventional tools can be used or not.) Tools and materials Use R40A tools Can R tools be used? Gauge manifold Air purge, refrigerant charge Charge hose and operation check Gas leak detector Gas leak check Refrigerant recovery equipment Refrigerant recovery Refrigerant cylinder Refrigerant charge Applied oil Apply to flared section Safety charger Charge valve Vacuum pump Flare tool Bender Pipe cutter Welder and nitrogen gas cylinder Refrigerant charging scale Vacuum gauge or thermistor vacuum gauge and vacuum valve Charging cylinder Prevent compressor malfunction when charging refrigerant by spraying liquid refrigerant Prevent gas from blowing out when detaching charge hose Vacuum drying and air purge Flaring work of piping Bend the pipes Cut the pipes Weld the pipes Refrigerant charge Check the degree of vacuum. (Vacuum valve prevents back flow of oil and refrigerant to thermistor vacuum gauge) Refrigerant charge Tool exclusive for R40A Tool exclusive for R40A Tool for HFC refrigerant Tool exclusive for R40A Tool exclusive for R40A Ester oil and alkylbenzene oil (minimum amount) Tool exclusive for R40A Tool exclusive for R40A Tools for other refrigerants can be used if equipped with adapter for reverse flow check Tools for other refrigerants can be used by adjusting flaring dimension Tools for other refrigerants can be used Tools for other refrigerants can be used Tools for other refrigerants can be used Tools for other refrigerants can be used Tools for other refrigerants can be used Tool exclusive for R40A : Prepare a new tool. (Use the new tool as the tool exclusive for R40A.) : Tools for other refrigerants can be used under certain conditions. : Tools for other refrigerants can be used. (Usable if equipped with adapter for reverse flow) (Usable by adjusting flaring dimension) Can R407C tools be used? Ester oil: Alkylbenzene oil: minimum amount (Usable if equipped with adapter for reverse flow) (Usable by adjusting flaring dimension) 7

8 4 FEATURES PUHZ-SW75VHA PUHZ-SW75VHA-BS PUHZ-SW00VHA PUHZ-SW00YHA PUHZ-SW0VHA PUHZ-SW0YHA PUHZ-SW00VHA-BS PUHZ-SW00YHA-BS PUHZ-SW0VHA-BS PUHZ-SW0YHA-BS CHARGELESS SYSTEM PRE-CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT. (Maximum 0 m (PUHZ-SW75 0)) The refrigerant circuit with LEV (Linear Expansion Valve) and accumulator always control the optimal refrigerant level regardless of the length (0 m maximum and 5 m minimum) of piping. The additional refrigerant charging work during installation often causes problems. Heretofore it is completely eliminated. This unique system improves the quality and reliability of the work done. It also helps to speed up the installation time. 8

9 5 SPECIFICATIS <Reference data> Plate heat exchanger (ACH70-40 plates) PUHZ-SW75VHA(-BS).UK PUHZ-SW0VHA(-BS).UK PUHZ-SW0VHAR(-BS).UK PUHZ-SW75VHAR(-BS).UK PUHZ-SW0YHA(-BS).UK PUHZ-SW0YHAR/R(-BS).UK Nominal water flow L/min.9 Nominal water flow L/min 45.9 Heating Capacity kw 8.00 Heating Capacity kw 6.0 (A7/W5) COP 4.40 (A7/W5) COP 4.0 Power input kw.8 Power input kw.90 Heating Capacity kw 8.00 Heating Capacity kw 6.0 (A7/W45) COP.40 (A7/W45) COP. Power input kw.5 Power input kw 4.95 Heating Capacity kw 7.50 Heating Capacity kw.0 (A/W5) COP.40 (A/W5) COP.4 Power input kw.0 Power input kw.70 Heating Capacity kw 7.50 Heating Capacity kw.0 (A/W45) COP.8 (A/W45) COP.5 Power input kw.65 Power input kw 4.76 Nominal water flow L/min 8.9 Nominal water flow L/min 5.8 Cooling Capacity kw 6.60 Cooling Capacity kw.5 (A5/W7) EER.55 (A5/W7) EER. Power input kw.59 Power input kw 5.8 Cooling Capacity kw 7.0 Cooling Capacity kw 4.0 (A5/W8) EER 4.0 (A5/W8) EER 4.08 Power input kw.77 Power input kw.4 PUHZ-SW00VHA(-BS).UK PUHZ-SW00VHAR(-BS).UK PUHZ-SW00YHA(-BS).UK PUHZ-SW00YHAR/R(-BS).UK Nominal water flow L/min. Heating Capacity kw. (A7/W5) COP 4.45 Power input kw.5 Heating Capacity kw. (A7/W45) COP.4 Power input kw.7 Heating Capacity kw 0.0 (A/W5) COP. Power input kw.0 Heating Capacity kw 0.0 (A/W45) COP.66 Power input kw.76 Nominal water flow L/min 6. Cooling Capacity kw 9.0 (A5/W7) EER.75 Power input kw. Cooling Capacity kw 0.0 (A5/W8) EER 4.5 Power input kw.0 Note: "COP" and "Power input" in the above table do NOT contain the "pump input (based on EN 45)". Rating conditions Nominal operating condition Heating (A7/W5) Outside air temperature (Dry-bulb) + 7 C Outside air temperature (Wet-bulb) + 6 C Water temperature (inlet/outlet) + 0 C/+ 5 C Heating (A7/W45) Outside air temperature (Dry-bulb) + 7 C Outside air temperature (Wet-bulb) + 6 C Water temperature (inlet/outlet) + 40 C/+ 45 C Heating (A/W5) Outside air temperature (Dry-bulb) + C Outside air temperature (Wet-bulb) + C Water temperature (inlet/outlet) + 0 C/+ 5 C Heating (A/W45) Outside air temperature (Dry-bulb) + C Outside air temperature (Wet-bulb) + C Water temperature (inlet/outlet) + 40 C/+ 45 C Cooling (A5/W7) Outside air temperature (Dry-bulb) + 5 C Outside air temperature (Wet-bulb) + 4 C Water temperature (inlet/outlet) + C/+ 7 C Cooling (A5/W8) Outside air temperature (Dry-bulb) + 5 C Outside air temperature (Wet-bulb) + 4 C Water temperature (inlet/outlet) + C/+ 8 C 9

10 PUHZ-SW75VHAR4(-BS).UK Nominal water flow L/min.9 Heating Capacity kw 8.00 (A7/W5) COP 4.40 Power input kw.8 Heating Capacity kw 8.00 (A7/W45) COP.40 Power input kw.5 Heating Capacity kw 7.50 (A/W5) COP.40 Power input kw.0 Heating Capacity kw 7.50 (A/W45) COP.8 Power input kw.65 Nominal water flow L/min 8.9 Cooling Capacity kw 6.60 (A5/W7) EER.86 Power input kw. Cooling Capacity kw 7.0 (A5/W8) EER 4.4 Power input kw.60 PUHZ-SW00VHAR4(-BS).UK PUHZ-SW00YHAR4(-BS).UK Nominal water flow L/min. Heating Capacity kw. (A7/W5) COP 4.45 Power input kw.5 Heating Capacity kw. (A7/W45) COP.4 Power input kw.7 Heating Capacity kw 0.0 (A/W5) COP. Power input kw.0 Heating Capacity kw 0.0 (A/W45) COP.66 Power input kw.76 Nominal water flow L/min 6. Cooling Capacity kw 9.0 (A5/W7) EER.75 Power input kw. Cooling Capacity kw 0.0 (A5/W8) EER 4.5 Power input kw.0 PUHZ-SW0VHAR4(-BS).UK PUHZ-SW0YHAR4(-BS).UK Nominal water flow L/min 45.9 Heating Capacity kw 6.0 (A7/W5) COP 4.0 Power input kw.90 Heating Capacity kw 6.0 (A7/W45) COP. Power input kw 4.95 Heating Capacity kw.0 (A/W5) COP.4 Power input kw.70 Heating Capacity kw.0 (A/W45) COP.5 Power input kw 4.76 Nominal water flow L/min 5.8 Cooling Capacity kw.5 (A5/W7) EER. Power input kw 5.9 Cooling Capacity kw 4.0 (A5/W8) EER 4.08 Power input kw.4 Rating conditions Nominal operating condition Heating (A7/W5) Outside air temperature (Dry-bulb) + 7 C Outside air temperature (Wet-bulb) + 6 C Water temperature (inlet/outlet) + 0 C/+ 5 C Heating (A7/W45) Outside air temperature (Dry-bulb) + 7 C Outside air temperature (Wet-bulb) + 6 C Water temperature (inlet/outlet) + 40 C/+ 45 C Heating (A/W5) Outside air temperature (Dry-bulb) + C Outside air temperature (Wet-bulb) + C Water temperature (inlet/outlet) + 0 C/+ 5 C Heating (A/W45) Outside air temperature (Dry-bulb) + C Outside air temperature (Wet-bulb) + C Water temperature (inlet/outlet) + 40 C/+ 45 C Cooling (A5/W7) Outside air temperature (Dry-bulb) + 5 C Outside air temperature (Wet-bulb) + 4 C Water temperature (inlet/outlet) + C/+ 7 C Cooling (A5/W8) Outside air temperature (Dry-bulb) + 5 C Outside air temperature (Wet-bulb) + 4 C Water temperature (inlet/outlet) + C/+ 8 C 0

11 Service Ref. OUTDOOR UNIT REFRIGERANT PIPING Power supply (phase, cycle, voltage) Max. current External finish Refrigerant control Compressor Model Motor output Starter type Protection devices Crankcase heater Heat exchanger Fan Defrost method Noise level Dimensions Fan(drive) o No. Fan motor output Airflow Weight Refrigerant Charge Oil (Model) Pipe size O.D. Connection method Between the indoor & outdoor unit Cooling Heating W D H A kw W kw K/min(CFM) db db mm (in) mm (in) mm (in) kg (lb) kg (lb) L Liquid mm (in) Gas mm (in) Indoor side Outdoor side Height difference Piping length PUHZ-SW75VHA.UK PUHZ-SW75VHAR.UK PUHZ-SW75VHA-BS.UK PUHZ-SW75VHAR-BS.UK Single, 50Hz, 0V 9 Munsell Y 7.8/. Linear Expansion Valve Hermetic TNB0FLHMT. Inverter HP switch Comp. surface thermo Discharge thermo Over current detection Plate fin coil Propeller fan o (,940) Reverse cycle (7-/8) 0+0(+-/6) 94(7-/8) 75(65) R40A.(7.0) 0.87(FV50S) 9.5(/8) 5.88(5/8) Flared Flared Maximum 0 m to 40 m Service Ref. OUTDOOR UNIT REFRIGERANT PIPING Power supply (phase, cycle, voltage) Max. current External finish Refrigerant control Compressor Model Motor output Starter type Protection devices Crankcase heater Heat exchanger Fan Defrost method Noise level Dimensions Fan(drive) o No. Fan motor output Airflow Weight Refrigerant Charge Oil (Model) Pipe size O.D. Connection method Between the indoor & outdoor unit Cooling Heating W D H A kw W kw K/min(CFM) db db mm (in) mm (in) mm (in) kg (lb) kg (lb) L Liquid mm (in) Gas mm (in) Indoor side Outdoor side Height difference Piping length PUHZ-SW75VHAR4.UK PUHZ-SW75VHAR4-BS.UK Single, 50Hz, 0V 7 Munsell Y 7.8/. Linear Expansion Valve Hermetic SNB0FAGMC-L.5 Inverter HP switch Comp. surface thermo Discharge thermo Over current detection Plate fin coil Propeller fan o (,940) Reverse cycle (7-/) 0+0(+-/6) 94(7-/8) 75(66) R40A.(7.0) 0.60(FV50S) 9.5(/8) 5.88(5/8) Flared Flared Maximum 0 m to 40 m

12 Service Ref. OUTDOOR UNIT REFRIGERANT PIPING Power supply (phase, cycle, voltage) Max. current External finish Refrigerant control Compressor Model Motor output Starter type Protection devices Crankcase heater Heat exchanger Fan Fan(drive) o No. Fan motor output Airflow Defrost method Noise level Dimensions Weight Refrigerant Charge Oil (Model) Pipe size O.D. Connection method Between the indoor & outdoor unit Cooling Heating W D H A kw W kw K/min(CFM) db db m (in) mm (in) mm (in) kg (lb) kg (lb) L Liquid mm (in) Gas mm (in) Indoor side Outdoor side Height difference Piping length PUHZ-SW00VHA.UK PUHZ-SW00VHAR.UK PUHZ-SW00VHAR4.UK PUHZ-SW00VHA-BS.UK PUHZ-SW00VHAR-BS.UK PUHZ-SW00VHAR4-BS.UK Single 50Hz, 0V 9.5 Munsell Y 7.8/. Linear Expansion Valve Hermetic ANBFNEMT.5 Inverter HP switch LP switch Discharge thermo Comp. surface thermo Over current detection Plate fin coil Propeller fan o (,5) Reverse cycle 950(7-/) 0+0(+-/6),50(5-/8) 8(6) R40A 4.6(0.).40(FV50S) 9.5(/8) 5.88(5/8) Flared Flared Maximum 0 m to 75 m PUHZ-SW0VHA.UK PUHZ-SW0VHAR.UK PUHZ-SW0VHAR4.UK PUHZ-SW0VHA-BS.UK PUHZ-SW0VHAR-BS.UK PUHZ-SW0VHAR4-BS.UK ANB4FNEMT Service Ref. OUTDOOR UNIT REFRIGERANT PIPING Power supply (phase, cycle, voltage) Max. current External finish Refrigerant control Compressor Model Motor output Starter type Protection devices Crankcase heater Heat exchanger Fan Fan(drive) o No. Fan motor output Airflow Defrost method Noise level Dimensions Weight Refrigerant Charge Oil (Model) Pipe size O.D. Connection method Between the indoor & outdoor unit Cooling Heating W D H A kw W kw K/min(CFM) db db m (in) mm (in) mm (in) kg (lb) kg (lb) L Liquid mm (in) Gas mm (in) Indoor side Outdoor side Height difference Piping length PUHZ-SW00YHA.UK PUHZ-SW00YHAR.UK PUHZ-SW00YHAR4.UK PUHZ-SW00YHA-BS.UK PUHZ-SW00YHAR-BS.UK PUHZ-SW00YHAR4-BS.UK ANBFNDMT phase, 50Hz, 400V Munsell Y 7.8/. Linear Expansion Valve Hermetic Inverter HP switch LP switch Discharge thermo Comp.surface thermo Over current detection Plate fin coil Propeller fan o (,5) Reverse cycle 950(7-/) 0+0(+-/6),50(5-/8) 0(87) R40A 4.6(0.).40(FV50S) 9.5(/8) 5.88(5/8) Flared Flared Maximum 0 m to 75 m PUHZ-SW0YHA.UK PUHZ-SW0YHAR.UK PUHZ-SW0YHAR4.UK PUHZ-SW0YHA-BS.UK PUHZ-SW0YHAR-BS.UK PUHZ-SW0YHAR4-BS.UK ANB4FNDMT

13 6 DATA 6-. REFILLING REFRIGERANT CHARGE (R40A : kg) Service Ref. Piping length (one way) 0 m 0 m 0 m 40 m 50 m 60 m 75 m Initial charged PUHZ-SW75VHA(-BS).UK PUHZ-SW75VHAR(-BS).UK PUHZ-SW75VHAR4(-BS).UK PUHZ-SW00VHA(-BS).UK PUHZ-SW00VHAR(-BS).UK PUHZ-SW00YHA(-BS).UK PUHZ-SW00YHAR(-BS).UK PUHZ-SW00YHAR(-BS).UK PUHZ-SW00V/YHAR4(-BS).UK PUHZ-SW0VHA(-BS).UK PUHZ-SW0VHAR(-BS).UK PUHZ-SW0YHA(-BS).UK PUHZ-SW0YHAR(-BS).UK PUHZ-SW0YHAR(-BS).UK PUHZ-SW0V/YHAR4(-BS).UK Additional charge is required for pipes longer than 0 m. 6-. COMPRESSOR TECHNICAL DATA (at 0 C) Service Ref. PUHZ-SW75VHA.UK PUHZ-SW75VHAR.UK PUHZ-SW75VHA-BS.UK PUHZ-SW75VHAR-BS.UK PUHZ-SW75VHAR4.UK PUHZ-SW75VHAR4-BS.UK PUHZ-SW00VHA.UK PUHZ-SW00VHAR.UK PUHZ-SW00VHAR4.UK PUHZ-SW00VHA-BS.UK PUHZ-SW00VHAR-BS.UK PUHZ-SW00VHAR4-BS.UK Compressor model TNB0FLHMT SNB0FAGMC-L ANBFNEMT Winding Resistance ( " ) U-V U-W W-V (at 0 C) Service Ref. PUHZ-SW0VHA.UK PUHZ-SW0VHAR.UK PUHZ-SW0VHAR4.UK PUHZ-SW0VHA-BS.UK PUHZ-SW0VHAR-BS.UK PUHZ-SW0VHAR4-BS.UK PUHZ-SW00YHA.UK PUHZ-SW00YHAR.UK PUHZ-SW00YHAR.UK PUHZ-SW00YHAR4.UK PUHZ-SW00YHA-BS.UK PUHZ-SW00YHAR-BS.UK PUHZ-SW00YHAR-BS.UK PUHZ-SW00YHAR4-BS.UK PUHZ-SW0YHA.UK PUHZ-SW0YHAR.UK PUHZ-SW0YHAR.UK PUHZ-SW0YHAR4.UK PUHZ-SW0YHA-BS.UK PUHZ-SW0YHAR-BS.UK PUHZ-SW0YHAR-BS.UK PUHZ-SW0YHAR4-BS.UK Compressor model ANB4FNEMT ANBFNDMT ANB4FNDMT Winding Resistance ( " ) U-V U-W W-V

14 6-. NOISE CRITERI CURVES MICROPHE m UNIT.5m GROUND PUHZ-SW75VHA(-BS).UK MODE PUHZ-SW75VHAR(-BS).UK PUHZ-SW75VHAR4(-BS).UK COOLING HEATING OCTAVE BAND SOUND PRESSURE LEVEL, db (0 db = µbar) APPROXIMATE THRESHOLD OF HEARING FOR CTINUOUS NOISE SPL(dB) BAND CENTER FREQUENCIES, Hz LINE NC-70 NC-60 NC-50 NC-40 NC-0 NC-0 PUHZ-SW00VHA(-BS).UK PUHZ-SW00VHAR(-BS).UK PUHZ-SW00VHAR4(-BS).UK PUHZ-SW00YHA(-BS).UK PUHZ-SW00YHAR(-BS).UK PUHZ-SW00YHAR(-BS).UK PUHZ-SW00YHAR4(-BS).UK OCTAVE BAND SOUND PRESSURE LEVEL, db (0 db = µbar) APPROXIMATE THRESHOLD OF HEARING FOR CTINUOUS NOISE MODE COOLING HEATING SPL(dB) LINE BAND CENTER FREQUENCIES, Hz NC-70 NC-60 NC-50 NC-40 NC-0 NC-0 PUHZ-SW0VHA(-BS).UK PUHZ-SW0VHAR(-BS).UK PUHZ-SW0VHAR4(-BS).UK PUHZ-SW0YHA(-BS).UK PUHZ-SW0YHAR(-BS).UK PUHZ-SW0YHAR(-BS).UK PUHZ-SW0YHAR4(-BS).UK OCTAVE BAND SOUND PRESSURE LEVEL, db (0 db = µbar) APPROXIMATE THRESHOLD OF HEARING FOR CTINUOUS NOISE MODE COOLING HEATING SPL(dB) 5 54 LINE BAND CENTER FREQUENCIES, Hz NC-70 NC-60 NC-50 NC-40 NC-0 NC-0 4

15 7 OUTLINES AND DIMENSIS PUHZ-SW75VHA.UK PUHZ-SW75VHAR.UK PUHZ-SW75VHAR4.UK PUHZ-SW75VHA-BS.UK PUHZ-SW75VHAR-BS.UK PUHZ-SW75VHAR4-BS.UK Unit : mm Rear Air Intake Handle for moving Handle for moving Air Intake 950 Terminal Connections Earth terminal Left Power supply wiring Right Indoor/Outdoor wiring * 4 * 447 A Side Air Intake Side Air Intake Handle for moving Handle for moving Rear Air Intake -U Shaped notched holes (Foundation Bolt M0) Installation Feet Air Discharge o 6 oval holes (Foundation Bolt M0) Service panel Handle for moving Front piping cover Rear piping cover FREE SPACE (Around the unit) The diagram below shows a basic example. Explanation of particular details is given in the installation manuals etc. SERVICE SPACE Dimensions of space needed for service access are shown in the below diagram. FOUNDATI BOLTS Please secure the unit firmly with 4 foundation (M0) bolts. (Bolts and washers must be purchased locally.) 4 PIPING-WIRING DIRECTIS Piping and wiring connections can be made from 4 directions: front, right, rear and below. over 0mm over 0mm Over0 Service space Over 500 Example of Notes Refrigerant GAS pipe connection (FLARE)[5.88(5/8 inch) Refrigerant LIQUID pipe connection (FLARE)[9.5(/8 inch) *...Indication of STOP VALVE connection location. Piping Knockout Hole Details Power supply wiring hole (-[7Knockout) Front trunking hole (Knockout) Right piping hole (Knockout) Power supply wiring hole (-[7Knockout) Right trunking hole (Knockout) Bottom piping hole (Knockout) Drain hole (5-[) [ [9 Front piping hole (Knockout) Power supply wiring hole (-[7Knockout) Rear trunking hole (Knockout) [9 Rear piping hole (Knockout) Over 500 Less than 0 FREE Over00 <Foundation bolt height> FOUNDATI over 500mm over 00mm VHA/R VHAR4 A

16 PUHZ-SW00VHA.UK PUHZ-SW00VHAR.UK PUHZ-SW00VHAR4.UK PUHZ-SW00VHA-BS.UK PUHZ-SW00VHAR-BS.UK PUHZ-SW00VHAR4-BS.UK PUHZ-SW00YHA.UK PUHZ-SW00YHAR.UK PUHZ-SW00YHAR.UK PUHZ-SW00YHAR4.UK PUHZ-SW00YHA-BS.UK PUHZ-SW00YHAR-BS.UK PUHZ-SW00YHAR-BS.UK PUHZ-SW00YHAR4-BS.UK PUHZ-SW0VHA.UK PUHZ-SW0VHAR.UK PUHZ-SW0VHAR4.UK PUHZ-SW0VHA-BS.UK PUHZ-SW0VHAR-BS.UK PUHZ-SW0VHAR4-BS.UK PUHZ-SW0YHA.UK PUHZ-SW0YHAR.UK PUHZ-SW0YHAR.UK PUHZ-SW0YHAR4.UK PUHZ-SW0YHA-BS.UK PUHZ-SW0YHAR-BS.UK PUHZ-SW0YHAR-BS.UK PUHZ-SW0YHAR4-BS.UK Unit : mm Rear Air Intake Side Air Intake Example of Notes Refrigerant GAS pipe connection (FLARE){5.88(5/8 inch) Refrigerant LIQUID pipe connection (FLARE){ 9.5(/8 inch) * Indication of STOP VALVE connection location. Handle for moving Handle for moving Handle for moving Air intake Piping Knockout Hole Details Rear Air Intake -U Shaped notched holes (Foundation Bolt M0) Side Air Intake (9) Installation Feet Air Discharge Front trunking hole (Knockout) Right piping hole (Knockout) Power supply wiring hole (-{7Knockout) Rear trunking hole (Knockout) Rear piping hole (Knockout) - x 6 Oval holes (Foundation Bolt M0) 950 Handle for moving Earth terminal Terminal connection Left Power supply wiring Right Indoor/Outdoor wiring Service panel Handle for moving Front piping cover Rear piping cover { Power supply wiring hole (-{7Knockout) Right trunking hole (Knockout) { * 4 * 447 A FREE SPACE (Around the unit) The diagram below shows a basic example. Explanation of particular details is given in the installation manuals etc. Over 500 Front piping hole (Knockout) Power supply wiring hole (-{7Knockout) { Bottom piping hole (Knockout) Drain hole (5-{) VHA YHA A, Over Over FREE Less than 0 Over 0 Service space SERVICE SPACE Dimensions of space needed for service access are shown in the below diagram. FOUNDATI BOLTS Please secure the unit firmly with 4 foundation (M0) bolts. (Bolts and washers must be purchased locally.) <Foundation bolt height> FOUNDATI 4 PIPING-WIRING DIRECTIS Piping and wiring connections can be made from 4 directions: front, right, rear and below. Over 50mm Over 0mm Over 0mm Over 000mm 6

17 8 WIRING DIAGRAM PUHZ-SW75VHA.UK PUHZ-SW75VHA-BS.UK PUHZ-SW75VHAR.UK PUHZ-SW75VHAR-BS.UK SYMBOL NAME SYMBOL NAME SYMBOL NAME TB Terminal Block <Power Supply, Indoor/Outdoor> P. B. Power Circuit Board SW5 Switch <Function Switch, Model Select> MC MF S4 6H 6HS TH TH4 TH6 TH7 TH8 TH4 Motor for Compressor Fan Motor Solenoid Valve (Four-Way Valve) High Pressure Switch High Pressure Sensor Thermistor <Liquid> Thermistor <Discharge> Thermistor <-Phase Pipe> Thermistor <Ambient> Thermistor <Heat Sink> Thermistor <Comp. Surface> R, S U, V, W IPM PFC CB, CB, CB N. F. LI, LO NI, NO EI, E, E 5C C. B. Connection Terminal <L/N-Phase> Connection Terminal <U/V/W-Phase> Power Module Converter Main Smoothing Capacitor Noise Filter Circuit Board Connection Terminal <L-Phase> Connection Terminal <N-Phase> Connection Terminal <Ground> 5C Relay Controller Circuit Board SW6 SW7 SW8 SW9 SWP CN CNDM CN5 SV/CH SS CNM Switch <Model Select> Switch <Function Switch> Switch <Function Switch> Switch <Function Switch> Switch <Pump Down> Connector <Emergency Operation> Connector <Connection for Option> Connector <Connection for Option> Connector <Connection for Option> Connector <Connection for Option> Connector <Connection for Option> LEV-A, LEV-B Linear Expansion Valve Switch <Manual Defrost, Defect History, LED, LED LED <Operation Inspection Indicators> SW ACL Reactor Record Reset, Refrigerant Address> F, F, F, F4 Fuse <T6.AL50V> CY, CY Capacitor SW4 Switch <Test Operation> X5, X5, X54 Relay MF MS ~ C. B. CNS CNF 7 C N F 7 CNDC (PNK) F F 6H TRAN S TH7 TH6 CNAC 4 TH TH4 t t t t t 4 TH7/6 TH (RED) TH4 6HS TH4 (RED) CN 7 F F4 6HS TH4 6L 6H (RED) (YLW) 5 LED S4 (GRN) LEV-A LEV-B M LED S4 CN4 X5 M 5 5 LEV-A LEV-B (RED) 5 C N VM N T C N M N T C N M 4 X54 SV /CH (GRY) CN5C (RED) X5 SW5 SW8 SW4 SWP SS * SW6 SW * CNS RED P. B. M C MS ~ W U V BLK WHT RED CB CB CB CN5 (RED) CN4 CN CN 7 TH8 t 5 CNAC (RED) LO N O N. F. CN5 (RED) CNAC RED RED PFC R S RED W H T U V W W H T AC L IPM W H T 5C W H T CN5C (BLK) E E CN SW7 SW9 CNDM CN5 5 YLW ORN BRN LI N I EI * MODEL SELECT The black square ( ) indicates a switch position. MODEL 75V SW SW5-6 * * SW5 - to 5 : Function Switch RED BLU GRN/YLW L N S S S TB POWER SUPPLY ~/N 0V 50Hz INDOOR UNIT CY CY 7

18 PUHZ-SW75VHAR4.UK PUHZ-SW75VHAR4-BS.UK SYMBOL NAME SYMBOL NAME TB Terminal Block <Power Supply, Indoor/Outdoor> C. B. Controller Circuit Board MC Motor for Compressor F, F, F, F4 Fuse <T6.AL50V> MF Fan Motor Switch <Manual Defrost, Defect History Record Reset, SW S4 Solenoid Valve (4-Way Valve) Refrigerant Address> 6H 6HS TH TH4 TH6 TH7 TH8 TH4 LEV-A, LEV-B ACL CY, CY P. B. High Pressure Switch High Pressure Sensor Thermistor <Liquid> Thermistor <Discharge> Thermistor <-Phase Pipe> Thermistor <Ambient> Thermistor <Heat Sink> Thermistor <Comp. Surface> Linear Expansion Valve Reactor Capacitor Power Circuit Board SW4 SW5 SW6 SW7 SW8 SW9 SWP CNDM SV/CH SV/SS CNM Switch <Function Switch> Switch <Function Switch, Model Select> Switch <Model Select> Switch <Function Switch> Switch <Function Switch> Switch <Function Switch> Switch <Pump Down> Connector <Connection for Option> Connector <Connection for Option> Connector <Connection for Option> Connector <Connection for Option> * MODEL SELECT MODEL SW6 75V The black square ( ) indicates a switch position. SW5-6 * * SW5 - to 5 : Function Switch TH7 TH6 TH TH4 6H 6HS TH4 LEV-A M LEV-B M C. B. t t t t t MF MS ~ 4 TH7/6 (RD) TH (WH) TH4 (WH) 6HS (WH) TH4 (RD) 5 LEV-A (WH) LEV-B (RD) 5 SW5 * * SW6 SW7 7 CNF (WH) 6H (YE) LED LED C N M 4 (WH) SW8 SW4 SWP SW SW9 CNDC (PK) TRAN S 7 CN (RD) 7 CN4 (WH) CNDM (WH) CNS (WH) F F CNAC (WH) 4 F F4 X5 S4 (GN) X54 SV/CH (GY) X5 SV/SS (WH) S4 P. B. TH8 t CN4 CN6 (WH) (WH) S/N CNAC (WH) R/L BK W MS V WH ~ U MC RD Wo Vo Uo IC70 + Q DB DB DB ~ ~ ~ ~ ~ 7 CN 7 (RD) CNAC (RD) EI E E4 BK BK BK RD WH GNYE YE OG BN L N S S S CY CY TB CNDC (PK) ~ TBL4 AC L TBL POWER SUPPLY ~/N 0V 50Hz TO INDOOR UNIT 8

19 PUHZ-SW00VHA.UK PUHZ-SW00VHA-BS.UK PUHZ-SW0VHA.UK PUHZ-SW0VHA-BS.UK PUHZ-SW00VHAR.UK PUHZ-SW00VHAR-BS.UK PUHZ-SW0VHAR.UK PUHZ-SW0VHAR-BS.UK SYMBOL NAME SYMBOL NAME SYMBOL NAME TB Terminal Block <Power Supply, Indoor/Outdoor> P. B. Power Circuit Board SW7 Switch <Function Switch> MC MF, MF S4 6H 6L 6HS TH TH4 TH6 TH7 Motor for Compressor Fan Motor Solenoid Valve (Four-Way Valve) High Pressure Switch Low Pressure Switch High Pressure Sensor Thermistor <Liquid> Thermistor <Discharge> Thermistor <-Phase Pipe> Thermistor <Ambient> U, V, W LI NI P N DCL, DCL IGBT EI, E, E, E4 5C C. B. Connection Terminal <U/V/W-Phase> Connection Terminal <L-Phase> Connection Terminal <N-Phase> Connection Terminal Connection Terminal Connection Terminal <Reactor> Power Module Connection Terminal <Ground> 5C Relay Controller Circuit Board SW8 SW9 SWP CN CNDM CN5 SV/CH SS CNM LED, LED Switch <Function Switch> Switch <Function Switch> Switch <Pump Down> Connector <Emergency Operation> Connector <Connection for Option> Connector <Connection for Option> Connector <Connection for Option> Connector <Connection for Option> Connector <Connection for Option> LED <Operation Inspection Indicators> TH8 Thermistor (internal) <Heat Sink> Switch <Manual Defrost, Defect History, F, F, F, F4 Fuse <T6.AL50V> SW TH4 Thermistor <Comp. Surface> Record Reset, Refrigerant Address> X5, X5, X54 Relay LEV-A, LEV-B DCL CB CY, CY Linear Expansion Valve Reactor Main Smoothing Capacitor Capacitor SW4 SW5 SW6 Switch <Test Operation> Switch <Function Switch, Model Select> Switch <Model Select> P. B. C N4 7 C N 5C CN5C (RED) WHT C B N 5C E B LK RED + P + - MF MS ~ MF MS ~ C. B. CNS CNF 7 CNF 7 CNDC (PNK) F F 6H 6L 6HS TH7 TH6 TH TH4 TH4 TRANS CNAC 4 t t t t 4 TH7/6 TH (RED) TH4 6HS TH4 (RED) 6L (RED) 6H (YLW) CN 7 F F4 7 t LED LEV-A M LED S4 SV /CH (GRN) (GRY) S4 LEV-B M 5 5 LEV-A LEV-B (RED) X5 C N4 5 CNVMNT CNMNT CNM 4 X54 X5 SW5 SW8 SW4 SWP SS * CN5C (RED) SW6 SW * CN SW7 SW9 CNS CNDM CN5 5 7 CNDC (PNK) + t TH8 IGBT ~ ~ E4 E (RED) CNAC CNAC B LK RED W H T 00V 0V W V U BLK WHT RED V W U MS ~ MC DCL DCL * MODEL SELECT The black square ( ) indicates a switch position. MODEL SW6 SW5-6 * * SW5 - to 5 : Function Switch DCL 9 B LK RED BLU EI B LK L N S S S TB POWER SUPPLY ~/N 0V 50Hz GRN/YLW YLW NI ORN BRN INDOOR UNIT LI CY CY

20 + - PUHZ-SW00VHAR4.UK PUHZ-SW00VHAR4-BS.UK PUHZ-SW0VHAR4.UK PUHZ-SW0VHAR4-BS.UK SYMBOL NAME SYMBOL NAME SYMBOL NAME TH7 TH8 TH4 SW5 SW6 SW7 TB MC MF, MF S4 6H 6L 6HS TH TH4 TH6 Terminal Block <Power Supply, Indoor/Outdoor> Motor for Compressor Fan Motor Solenoid Valve (4-Way Valve) High Pressure Switch Low Pressure Switch High Pressure Sensor Thermistor <Liquid> Thermistor <Discharge> Thermistor <-Phase Pipe> Thermistor <Ambient> Thermistor internal <Heat Sink> Thermistor <Comp. Surface> LEV-A, LEV-B Linear Expansion Valve DCL Reactor CY, CY Capacitor P. B. Power Circuit Board C. B. Controller Circuit Board SW Switch <Manual Defrost, Defect History Record Reset, Refrigerant Address> SW4 Switch <Function Switch> SW8 SW9 SWP CNDM SV/CH SV/SS CNM F, F, F, F4 Switch <Function Switch, Model Select> Switch <Model Select> Switch <Function Switch> Switch <Function Switch> Switch <Function Switch> Switch <Pump Down> Connector <Connection for Option> Connector <Connection for Option> Connector <Connection for Option> Connector <Connection for Option> Fuse <T6.AL50V> * MODEL SELECT The black square ( ) indicates a switch position. MODEL SW6 SW5-6 * 00V 0V * SW5 - to 5 : Function Switch H 6L TH7 TH6 TH TH4 6HS TH4 LEV-A M LEV-B M MF MS ~ C. B. CNF 7 (WH) t t t t 4 TH7/6 TH TH4 (RD) (WH) (WH) 6HS (WH) t TH4 (RD) 5 LEV-A (WH) LEV-B (RD) 5 * * MF MS ~ CNF 7 (WH) CNDC (PK) TRANS 6H (YE) CN (RD) 7 6L (RD) CN4 (WH) CNM 4 (WH) CN5C (RD) CNS (WH) F F CNAC (WH) 4 F F4 S4 SV/CH (GN) (GY) S4 7 P. B. CN4 (WH) CN5C (RD) CNDC (PK) E BK + IGBT ~ BK BK WH RD V W U MS ~ DCL MC RD BU GNYE YE OG SW5 SW6 BN SW7 LED LED SW8 SW4 SWP SW SW9 CNDM (WH) 7 X5 X54 X5 SV/SS (WH) CN 7 (RD) CNAC (RD) E t TH8 ~ E4 CNAC (WH) W V U DCL DCL EI NI LI BK WH BK BK CY CY L N S S S TB POWER SUPPLY ~/N 0V 50Hz 0 TO INDOOR UNIT

21 PUHZ-SW00YHA.UK PUHZ-SW00YHA-BS.UK PUHZ-SW0YHA.UK PUHZ-SW0YHA-BS.UK SYMBOL NAME SYMBOL NAME SYMBOL NAME TB Terminal Block <Power Supply> P. B. Power Circuit Board C. B. Controller Circuit Board TB Terminal Block <Indoor/Outdoor> TB-U/V/W Connection Terminal <U/V/W-Phase> SW Switch <Manual Defrost, Defect History, MC Motor for Compressor TB-L/L/L Connection Terminal <L/L/L-Power Supply> Record Reset, Refrigerant Address> MF, MF Fan Motor TB-N Connection Terminal SW4 Switch <Test Operation> S4 Solenoid Valve (Four-Way Valve) X5CA 5C Relay SW5 Switch <Function Switch, Model Select> 6H 6L High Pressure Switch Low Pressure Switch N. F. LI/LI/LI/NI Noise Filter Circuit Board Connection Terminal <L/L/L/N-Power Supply> SW6 SW7 Switch <Model Select> Switch <Function Switch> 6HS High Pressure Sensor LO/LO/LO/NO Connection Terminal <L/L/L/N-Power Supply> SW8 Switch <Function Switch> TH Thermistor <Liquid> GD, GD Connection Terminal <Ground> SW9 Switch <Function Switch> TH4 Thermistor <Discharge> CV. B. Converter Circuit Board SWP Switch <Pump Down> TH6 Thermistor <-Phase Pipe> L-A/IN Connection Terminal <L-Power Supply> CN Connector <Emergency Operation> TH7 Thermistor <Ambient> L-A/OU Connection Terminal <L-Power Supply> CNDM Connector <Connection for Option> TH8 Thermistor <Heat Sink> L-A/OU Connection Terminal <L-Power Supply> CN5 Connector <Connection for Option> TH4 Thermistor <Comp. Surface> L-A/OU Connection Terminal <L-Power Supply> SV/CH Connector <Connection for Option> LEV-A, LEV-B Linear Expansion Valve N-IN Connection Terminal SS Connector <Connection for Option> ACL, ACL, ACL, ACL4 CY, CY CK Reactor Capacitor Capacitor CK-OU Connection Terminal CNM LED, LED F, F, F, F4 Connector <Connection for Option> LED <Operation Inspection Indicators> FUSE <T6.AL50V> RS Rush Current Protect Resistor X5, X5, X54 Relay MF MS ~ MF MS ~ C. B. CNS CNDC (PNK) CNF 7 CNF 7 F F 6H TRANS 6L CNAC 4 TH7TH6 TH TH4 t t t t 4 TH7/6 TH TH4 (RED) 6H (YLW) CN 7 F F4 P. B. 6HS TH4 6L (RED) 7 t 6HS TH4 (RED) LED LEV-A M 5 LEV-A LED X5 S4 SV /CH (GRN) (GRY) S4 LEV-B 5 LEV-B (RED) TH8 t M CN4 7 5 CNVMNT CNMNT CNM 4 X54 X5 SW5 SW8 SW4 SWP SS * CN5C (RED) SW6 SW * CN SW7 SW9 CNS CNDM CN5 5 * MODEL SELECT The black square ( ) indicates a switch position. MODEL SW6 SW5-6 * 00Y Y * SW5 - to 5 : Function Switch 7 CN7 CN6 CN5 CN CN4 (RED) BLK WHT RED RED RED TB-L TB-L TB-L RS X5CA TB-N INDOOR UNIT CY CY TB S S S YLW ORN BRN TB-U TB-V TB-W RED WHT BLK V W U MS ~ MC BLK CK BLK L-OU BLK CN7 L-A L-A WHT L-OU L-IN WHT L-A RED L-OU CV. B. N-IN RED L-A CK-OU N. F. BLK POWER SUPPLY N~ 400V 50Hz TB L L L N RED WHT BLK BLU LI LI LI NI CNAC CNCT (RED) CNAC (RED) LO LO LO NO RED WHT BLK BLU RED RED BLU ACL ACL ACL GRN/YLW BLK GD GD BLK CNDC CNL (PNK) (BLU) BRN BRN ACL4

22 PUHZ-SW00YHAR.UK PUHZ-SW00YHAR-BS.UK PUHZ-SW0YHAR.UK PUHZ-SW0YHAR-BS.UK PUHZ-SW00YHAR.UK PUHZ-SW00YHAR-BS.UK PUHZ-SW0YHAR.UK PUHZ-SW0YHAR-BS.UK SYMBOL NAME SYMBOL NAME SYMBOL NAME TB Terminal Block <Power Supply> P. B. Power Circuit Board C. B. Controller Circuit Board TB Terminal Block <Indoor/Outdoor> TB-U/V/W Connection Terminal <U/V/W-Phase> SW Switch <Manual Defrost, Defect History, MC Motor for Compressor TB-L/L/L Connection Terminal <L/L/L-Power Supply> Record Reset, Refrigerant Address> MF, MF Fan Motor TB-N Connection Terminal SW4 Switch <Test Operation> S4 Solenoid Valve (Four-Way Valve) X5CA/B 5C Relay SW5 Switch <Function Switch, Model Select> 6H 6L High Pressure Switch Low Pressure Switch N. F. LI/LI/LI/NI Noise Filter Circuit Board Connection Terminal <L/L/L/N-Power Supply> SW6 SW7 Switch <Model Select> Switch <Function Switch> 6HS High Pressure Sensor LO/LO/LO/NO Connection Terminal <L/L/L/N-Power Supply> SW8 Switch <Function Switch> TH Thermistor <Liquid> GD, GD Connection Terminal <Ground> SW9 Switch <Function Switch> TH4 Thermistor <Discharge> CV. B. Converter Circuit Board SWP Switch <Pump Down> TH6 Thermistor <-Phase Pipe> L-A/IN Connection Terminal <L-Power Supply> CN Connector <Emergency Operation> TH7 Thermistor <Ambient> L-A/OU Connection Terminal <L-Power Supply> CNDM Connector <Connection for Option> TH8 Thermistor <Heat Sink> L-A/OU Connection Terminal <L-Power Supply> CN5 Connector <Connection for Option> TH4 Thermistor <Comp. Surface> L-A/OU Connection Terminal <L-Power Supply> SV/CH Connector <Connection for Option> LEV-A, LEV-B Linear Expansion Valve N-IN Connection Terminal SS Connector <Connection for Option> ACL, ACL, ACL, ACL4 CY, CY CK Reactor Capacitor Capacitor CK-OU Connection Terminal CNM LED, LED F, F, F, F4 Connector <Connection for Option> LED <Operation Inspection Indicators> FUSE <T6.AL50V> RS Rush Current Protect Resistor X5, X5, X54 Relay MF MS ~ MF MS ~ C. B. CNS CNDC (PNK) CNF 7 CNF 7 F F 6H TRANS 6L CNAC 4 TH7TH6 TH TH4 t t t t 4 TH7/6 TH TH4 (RED) 6H (YLW) CN 7 F F4 P. B. 6HS TH4 6L (RED) 7 t 6HS TH4 (RED) LED LEV-A M 5 LEV-A LED S4 SV /CH (GRN) (GRY) S4 X5 LEV-B 5 LEV-B (RED) TH8 t M CN4 7 5 CNVMNT CNMNT CNM 4 X54 X5 SW5 SW8 SW4 SWP SS * CN5C (RED) SW6 SW * CN MODEL SW6 SW5-6 * 00Y Y * SW5 - to 5 : Function Switch BLK WHT X5CA RED RED BLK BLK WHT WHT RED RED SW7 SW9 CNS CNDM CN5 5 * MODEL SELECT The black square ( ) indicates a switch position. 7 CN7 CN6 CN5 CN CN4 (RED) LOUT TB-L BLK X5CB LIN TB-L RED RS TB-L TB-U TB-V TB-W TB-N CY CY INDOOR UNIT TB S S S YLW ORN BRN RED WHT BLK V W U MS ~ MC BLK CK L-OU CN7 L-A L-A L-OU L-IN L-A L-OU CV. B. N-IN L-A CK-OU N. F. BLK POWER SUPPLY N~ 400V 50Hz TB L L L N RED WHT BLK BLU LI LI LI NI CNAC CNCT (RED) CNAC (RED) LO LO LO NO RED WHT BLK BLU RED RED BLU ACL ACL ACL GRN/YLW BLK GD GD BLK CNDC CNL (PNK) (BLU) BRN BRN ACL4

23 PUHZ-SW00YHAR4.UK PUHZ-SW00YHAR4-BS.UK PUHZ-SW0YHAR4.UK PUHZ-SW0YHAR4-BS.UK SYMBOL NAME SYMBOL NAME SYMBOL NAME TB Terminal Block <Power Supply> TH4 Thermistor <Comp. Surface> SW4 Switch <Function Switch> TB Terminal Block <Indoor/Outdoor> LEV-A, LEV-B Linear Expansion Valve SW5 Switch <Function Switch, Model Select> MC Motor for Compressor ACL, ACL, SW6 Switch <Model Select> Reactor MF, MF Fan Motor ACL, ACL4 SW7 Switch <Function Switch> S4 6H 6L 6HS Solenoid Valve (4-Way Valve) High Pressure Switch Low Pressure Switch High Pressure Sensor CY, CY CK RS P. B. Capacitor Capacitor Rush Current Protect Resistor Power Circuit Board SW8 SW9 SWP CNDM Switch <Function Switch> Switch <Function Switch> Switch <Pump Down> Connector <Connection for Option> TH Thermistor <Liquid> N. F. Noise Filter Circuit Board SV/CH Connector <Connection for Option> TH4 Thermistor <Discharge> CV. B. Converter Circuit Board SV/SS Connector <Connection for Option> TH6 Thermistor <-Phase Pipe> C. B. Controller Circuit Board CNM Connector <Connection for Option> TH7 Thermistor <Ambient> F, F, F, F4 Fuse <T6.AL50V> SW Switch <Manual Defrost, Defect History TH8 Thermistor <Heat Sink> Record Reset, Refrigerant Address> * MODEL SELECT The black square ( ) indicates a switch position. MODEL 00Y SW6 MODEL SW SW5-6 * 0Y SW5-6 * * SW5 - to 5 : Function Switch 6H 6L TH7 TH6 TH TH4 6HS TH4 LEV-A M LEV-B M MF MS ~ C. B. CNF 7 (WH) t t t t 4 TH7/6 TH TH4 (RD) (WH) (WH) 6HS (WH) t TH4 (RD) 5 LEV-A (WH) LEV-B (RD) 5 SW5 * * SW6 SW7 MF MS ~ CNF 7 (WH) CNDC (PK) TRANS 6H (YE) 6L (RD) CN (RD) 7 LED LED CN4 (WH) CNM 4 (WH) SW8 SW4 SWP SW SW9 CNDM (WH) CNS (WH) F F CNAC (WH) 4 F F4 7 X5 X54 S4 SV/CH (GN) (GY) X5 SV/SS (WH) S4 P. B. TH8 t 7 CN 7 CN7 CN6 CN5 (RD) CN4 (WH) (WH) (RD) (WH) LOUT TB-L BK X5CB BK LIN TB-L ~ ~ ~ WH X5CA RD RD RS + TB-L RD TB-N TO INDOOR UNIT TB S S S CY CY YE OG BN N. F. TB-U TB-V TB-W RD WH BK U V W MS ~ MC + + BK CK BK L-OU BK CN7 (WH) L-A L-A WH L-OU L-IN WH L-A RD L-OU CV. B. N-IN RD L-A CK-OU BK POWER SUPPLY N~ 400V 50Hz TB L L L N RD WH BK BU LI LI LI NI CNAC (WH) CNCT (RD) CNAC (RD) LO LO LO NO RD WH BK BU RD RD BU ACL ACL ACL GNYE ~ ~ BK GD GD BK CNDC CNL (PK) (BU) ACL4

24 9 WIRING SPECIFICATIS FIELD ELECTRICAL WIRING (power wiring specifications) Outdoor unit model SW75V SW00V SW0V SW00, 0Y Outdoor unit power supply ~/N (single), 50 Hz, 0 V ~/N (single), 50 Hz, 0 V ~/N (single), 50 Hz, 0 V N~ ( ph 4-wires), 50 Hz, 400 V Outdoor unit input capacity Main switch (Breaker) * 5 A A 40 A 6 A Wiring Wire No. size (mm ) Circuit rating Outdoor unit power supply Min..5 Min. 4 Min. 6 5 Min..5 Indoor unit-outdoor unit *.5 (Polar).5 (Polar).5 (Polar).5 (Polar) Indoor unit-outdoor unit earth * Min..5 Min..5 Min..5 Min..5 Remote controller-indoor unit * 0. (Non-polar) 0. (Non-polar) 0. (Non-polar) 0. (Non-polar) Outdoor unit L-N (single) Outdoor unit L-N, L-N, L-N ( phase) *4 0 V AC 0 V AC 0 V AC 0 V AC Indoor unit-outdoor unit S-S *4 0 V AC 0 V AC 0 V AC 0 V AC Indoor unit-outdoor unit S-S *4 4 V DC 4 V DC 4 V DC 4 V DC Remote controller-indoor unit *4 V DC V DC V DC V DC *. A breaker with at least.0 mm contact separation in each pole shall be provided. Use earth leakage breaker (NV). Make sure that the current leakage breaker is one compatible with higher harmonics. Always use a current leakage breaker that is compatible with higher harmonics as this unit is equipped with an inverter. The use of an inadequate breaker can cause the incorrect operation of inverter. *. Maximum 45 m If.5 mm is used, maximum 50 m. If.5 mm is used and S is separated, maximum 80 m. *. The 0 m wire is attached in the remote controller accessory. *4. The figures are NOT always against the ground. S terminal has 4 V DC against S terminal. However between S and S, these terminals are NOT electrically insulated by the transformer or other device. Notes:. Wiring size must comply with the applicable local and national codes.. Power supply cables and the cables between Interface unit/flow temp. controller and outdoor unit shall not be lighter than polychloroprene sheathed flexible cables. (Design 6045 IEC 57). Be sure to connect the cables between Interface unit/flow temp. controller and outdoor unit directly to the units (no intermediate connections are allowed). Intermediate connections may result in communication errors. If water enters at the intermediate connection point, it may cause insufficient insulation to ground or a poor electrical contact. (If an intermediate connection is necessary, be sure to take measures to prevent water from entering the cables.) 4. Install an earth longer than other cables. 5. Do not construct a system with a power supply that is turned and frequently. Power supply Isolator poles isolator S S Outdoor Unit S S S S Indoor unit (Interface unit / Flow temp. controller) Warning: In case of A-control wiring, there is high voltage potential on the S terminal caused by electrical circuit design that has no electrical insulation between power line and communication signal line. Therefore, please turn off the main power supply when servicing. And do not touch the S, S, S terminals when the power is energized. If isolator should be used between indoor unit and outdoor unit, please use -pole type. Never splice the power cable or the indoor-outdoor connection cable, otherwise it may result in smoke emission, a fire or communication failure. 4

25 0 REFRIGERANT SYSTEM DIAGRAM PUHZ-SW75VHA.UK PUHZ-SW75VHAR.UK PUHZ-SW75VHAR4.UK PUHZ-SW75VHA-BS.UK PUHZ-SW75VHAR-BS.UK PUHZ-SW75VHAR4-BS.UK Refrigerant GAS pipe connection [5.88(5/8) Stop valve (with service port) Strainer #50 Charge plug (Low pressure) Pressure sensor 6HS 4-way valve Charge plug (High pressure) High pressure switch 6H Thermistor TH7 (Ambient) Heat exchanger Thermistor TH6 (-phase pipe) Thermistor TH (Liquid) Distributor unit: mm (in) Thermistor TH4 (Discharge) Strainer #00 Thermistor TH4 (Comp. surface) Refrigerant LIQUID pipe connection [9.5(/8) Linear expansion valve B Stop valve (with service port) Strainer #00 Power receiver Strainer #00 Compressor Linear expansion valve A PUHZ-SW00VHA.UK PUHZ-SW00VHAR.UK PUHZ-SW00VHAR4.UK PUHZ-SW00VHA-BS.UK PUHZ-SW00VHAR-BS.UK PUHZ-SW00VHAR4-BS.UK PUHZ-SW00YHA.UK PUHZ-SW00YHAR.UK PUHZ-SW00YHAR.UK PUHZ-SW00YHAR4.UK PUHZ-SW00YHA-BS.UK PUHZ-SW00YHAR-BS.UK PUHZ-SW00YHAR-BS.UK PUHZ-SW00YHAR4-BS.UK PUHZ-SW0VHA.UK PUHZ-SW0VHAR.UK PUHZ-SW0VHAR4.UK PUHZ-SW0VHA-BS.UK PUHZ-SW0VHAR-BS.UK PUHZ-SW0VHAR4-BS.UK PUHZ-SW0YHA.UK PUHZ-SW0YHAR.UK PUHZ-SW0YHAR.UK PUHZ-SW0YHAR4.UK PUHZ-SW0YHA-BS.UK PUHZ-SW0YHAR-BS.UK PUHZ-SW0YHAR-BS.UK PUHZ-SW0YHAR4-BS.UK Strainer #00 P.B TH8 Thermistor TH7 (Ambient) Heat exchanger Thermistor TH6 (-phase pipe) Pressure sensor 6HS Refrigerant GAS pipe connection ø5.88(5/8) Ball valve Strainer #50 4-way valve Charge plug (High pressure) Distributor Charge plug (Low pressure) Strainer #00 Low pressure switch 6L High pressure switch 6H Thermistor TH (Liquid) Thermistor TH4 (Discharge) Strainer #00 Thermistor TH4 (Comp. surface) Refrigerant LIQUID pipe connection ø9.5(/8) COMP H/P SW L/P SW REV/V Charge plug P-Sensor LEV-A LEV-B TH TH4 TH6 TH7 TH4 Linear expansion valve B Stop valve (with service port) Strainer #00 Compressor High pressure switch (6H) Low pressure switch (6L) Reversing (4-way) valve (S4) Charge plug Pressure sensor (6HS) Linear expansion valve -A Linear expansion valve -B Liquid temperature thermistor Discharge temperature thermistor -phase pipe temperature thermistor Ambient temperature thermistor Comp.surface temperature thermistor Power Receiver Power receiver Strainer #00 Linear expansion valve A 5 Compressor Symbol Part name Detail Power Receiver Strainer #00 P.B TH8 DC inverter twin rotary compressor (Mitsubishi Electric Corporation) For protection (:4.5MPa) For protection (:-0.0MPa) (SW00/0) Change the refrigerant circuit (Heating / Cooling) and for Defrosting High pressure / Low pressure / For production test use For calculation of the condensing temperature from high pressure Heating:Secondary LEV Cooling:Primary LEV Heating:Primary LEV Cooling:Secondary LEV Heating:Evaporating temperature Cooling:Sub cool liquid temperature For LEV control and for compressor protection Outdoor -phase pipe temperature For fan control and for compressor frequency control For compressor protection For accumulation of refrigerant Refrigerant flow in cooling Refrigerant flow in heating

26 0-. Refrigerant collecting (pump down) When relocating or disposing of the indoor/outdoor unit, pump down the system following the procedure below so that no refrigerant is released into the atmosphere. Turn off the power supply (circuit breaker). Connect the low-pressure valve on the gauge manifold to the charge plug (lowpressure side) on the outdoor unit. Close the liquid stop valve completely. 4 Supply power (circuit breaker). Even if power can be supplied, the pump down procedure cannot be completed depending on the unit's status. For more information, refer to the FTC Installation Manual or Service Manual. Startup of the indoor-outdoor communication takes about minutes after the power (circuit breaker) is turned on. Start the pump-down operation to 4 minutes after the power (circuit breaker) is turned on. 5 Perform the refrigerant collecting operation (cooling test run). Push the pump-down SWP switch (push-button type) on the control board of the outdoor unit. The compressor and ventilators (indoor and outdoor units) start operating (refrigerant collecting operation begins). (LED and LED on the control board of the outdoor unit are lit.) Only push the pump-down SWP switch if the unit is stopped. However, even if the unit is stopped and the pump-down SWP switch is pushed less than minutes after the compressor stops, the refrigerant collecting operation cannot be performed. Wait until the compressor has been stopped for minutes and then push the pump-down SWP switch again. 6 Fully close the ball valve on the gas pipe side of the outdoor unit when the pressure gauge on the gauge manifold shows 0.05 to 0 MPa [Gauge] (approx. 0.5 to 0 kgf/cm²) and quickly stop the air conditioner. Since the unit automatically stops in about minutes when the refrigerant collecting operation is completed (LED off, LED lit), be sure to quickly close the gas ball valve. However, if LED is lit, LED is off, and the unit is stopped, open the liquid stop valve completely, close the valve completely after minutes or more have passed, and then repeat step 5. (Open the gas ball valve completely.) If the refrigerant collecting operation has been completed normally (LED off, LED lit), the unit will remain stopped until the power supply is turned off. Note that when the extension piping is very long with a large refrigerant amount, it may not be possible to perform a pumpdown operation. In this case, use refrigerant recovery equipment to collect all of the refrigerant in the system. 7 Turn off the power supply (circuit breaker), remove the gauge manifold, and then disconnect the refrigerant pipes. Warning: When pumping down the refrigerant, stop the compressor before disconnecting the refrigerant pipes. If the refrigerant pipes are disconnected while the compressor is operating and the stop valve (ball valve) is open, the pressure in the refrigeration cycle could become extremely high if air is drawn in, causing the pipes to burst, personal injury, etc. 0-. Unit replacement operation When reusing the existing pipes that carried R refrigerant for the SW75/00/0 models, replacement operation must be performed before performing a test run. If new pipes are used, these procedures are not necessary. If existing pipes that carried R refrigerant are used for the SW75/00/0 models, these procedures are not necessary. (The replacement operation cannot be performed.) During replacement operation, C5 is displayed on A-Control Service Tool (PAC-SK5ST). (This is applied to only SW75/00/0 models.) 6

27 TROUBLESHOOTING -. TROUBLESHOOTING <Check code displayed by self-diagnosis and actions to be taken for service (summary)> Present and past check codes are logged, and they can be displayed on the control board of outdoor unit. Actions to be taken for service, which depends on whether or not the trouble is reoccurring in the field, are summarized in the table below. Check the contents below before investigating details. Unit conditions at service Check code Actions to be taken for service (summary) The trouble is reoccurring. The trouble is not reoccurring. Displayed Not displayed Logged Not logged Judge what is wrong and take a corrective action according to -. SELF-DIAGNOSIS ACTI TABLE. Conduct troubleshooting and ascertain the cause of the trouble. Consider the temporary defects such as the work of protection devices in the refrigerant circuit including compressor, poor connection of wiring, noise, etc. Recheck the symptom, and check the installation environment, refrigerant amount, weather when the trouble occurred, matters related to wiring, etc. Reset check code logs and restart the unit after finishing service. There is no abnormality in electrical component, controller board, etc. Re-check the abnormal symptom. Conduct troubleshooting and ascertain the cause of the trouble. Continue to operate unit for the time being if the cause is not ascertained. 4 There is no abnormality concerning of parts such as electrical component, controller board, etc. 7

28 -. SELF-DIAGNOSIS ACTI TABLE <Abnormalities detected when the power is turned on> Note: Refer to indoor unit section for code P and code E. Check code Abnormal point and detection method Case Judgment and action None No voltage is supplied to terminal block (TB) of outdoor unit. a) Power supply breaker is turned off. b) Contact failure or disconnection of power supply terminal c) Open phase (L or N phase) Electric power is not charged to power supply terminal of outdoor power circuit board. a) Contact failure of power supply terminal b) Open phase on the outdoor power circuit board SW75V: Disconnection of connector R or S SW00/0V: Disconnection of connector LI or NI Electric power is not supplied to outdoor controller circuit board. a) Disconnection of connector (CNDC) 4 Disconnection of reactor (DCL or ACL) 5 Disconnection of outdoor noise filter circuit board or parts failure in outdoor noise filter circuit board As for SW75VHA(R), it is especially needed to check the resistance RS on the noise filter circuit board. 6 Defective outdoor power circuit board 7 Defective outdoor controller circuit board Check following items. a) Power supply breaker b) Connection of power supply terminal block (TB) c) Connection of power supply terminal block (TB) Check following items. a) Connection of power supply terminal block (TB) b) Connection of terminal on outdoor power circuit board SW75V: Check connection of the connector R or S. Refer to "-6. TEST POINT DIAGRAM". SW00/0V: Check connection of the connector LI or NI. Refer to "-6. TEST POINT DIAGRAM". Check connection of the connector (CNDC) on the outdoor controller circuit board. Check connection of the connector, CNDC on the outdoor power circuit board(v)/the noise filter(y). Refer to "-6. TEST POINT DIAGRAM". 4 Check connection of reactor. (DCL or ACL) SW75VHA(R) : Check connection of LO and NO on the outdoor noise filter circuit board. Check connection of "R" and "S" on the outdoor power circuit board. Refer to "-6. TEST POINT DIAGRAM". SW75VHAR4:Check connection of "TBL" and "TBL4" on the outdoor power circuit board. "-6. TEST POINT DIAGRAM". SW00/0V: Check connection of "DCL" and "DCL" on the outdoor power circuit board. Refer to "-6. TEST POINT DIAGRAM". 5 a) Check connection of outdoor noise filter circuit board. b) Replace outdoor noise filter circuit board. Refer to "-6. TEST POINT DIAGRAM". 6 Replace outdoor power circuit board. 7 Replace controller board (When items above are checked but the units cannot be repaired). F F5 6L connector open (SW00/0 only) Abnormal if 6L connector circuit is open for minutes continuously after power supply. 6L: Low-pressure switch 6H connector open Abnormal if 6H connector circuit is open for minutes continuously after power supply. 6H: High-pressure switch Disconnection or contact failure of 6L connector on outdoor controller circuit board Disconnection or contact failure of 6L 6L is working due to refrigerant leakage or defective parts. 4 Defective outdoor controller circuit board Disconnection or contact failure of 6H connector on outdoor controller circuit board Disconnection or contact failure of 6H 6H is working due to defective parts. 4 Defective outdoor controller circuit board Check connection of 6L connector on outdoor controller circuit board. Refer to "-6. TEST POINT DIAGRAM". Check the 6L side of connecting wire. Check refrigerant pressure. Charge additional refrigerant. Check continuity by tester. Replace the parts if the parts are defective. 4 Replace outdoor controller circuit board. Check connection of 6H connector on outdoor controller circuit board. Refer to "-6. TEST POINT DIAGRAM". Check the 6H side of connecting wire. Check continuity by tester. Replace the parts if the parts are defective. 4 Replace outdoor controller circuit board. 8

29 Check code Abnormal point and detection method Case Judgment and action F9 connector open (SW00/0 only) Abnormal if both 6H and 6L connector circuits are open for three minutes continuously after power supply. 6H: High-pressure switch 6L: Low-pressure switch Disconnection or contact failure of connector (6H,6L) on outdoor controller circuit board Disconnection or contact failure of 6H, 6L 6H and 6L are working due to defective parts. 4 Defective outdoor controller board Check connection of connector (6H,6L) on outdoor controller circuit board. Refer to "-6. TEST POINT DIAGRAM". Check the 6H and 6L side of connecting wire. Check continuity by tester. Replace the parts if the parts are defective. 4 Replace outdoor controller circuit board. EA Eb Indoor/outdoor unit connector miswiring, excessive number of units (4 units or more). Outdoor controller circuit board can automatically check the number of connected indoor units. Abnormal if the number cannot be checked automatically due to miswiring of indoor/outdoor unit connecting wire and etc. after power is turned on for 4 minutes.. Abnormal if outdoor controller circuit board recognizes excessive number of indoor units. Miswiring of indoor/outdoor unit connecting wire (converse wiring or disconnection) Outdoor controller circuit board can automatically set the unit number of indoor units. Abnormal if the indoor unit number cannot be set within 4 minutes after power on because of miswiring (converse wiring or disconnection) of indoor/outdoor unit connecting wire. Contact failure or miswiring of indoor/outdoor unit connecting wire Diameter or length of indoor/ outdoor unit connecting wire is out of specified capacity. Excessive number of indoor units are connected to outdoor unit ( units or more). 4 Defective transmitting receiving circuit of outdoor controller circuit board 5 Defective transmitting receiving circuit of indoor controller board 6 Defective indoor power board 7 or more outdoor units have refrigerant address 0. (In case of group control) 8 Noise has entered into power supply or indoor / outdoor unit connecting wire. Contact failure or miswiring of indoor/outdoor unit connecting wire Diameter or length of indoor/ outdoor unit connecting wire is out of specified capacity. 4 Defective transmitting receiving circuit of outdoor controller circuit board 5 Defective transmitting receiving circuit of indoor controller board 6 Defective indoor power board 7 or more outdoor units have refrigerant address 0. (In case of group control) 8 Noise has entered into power supply or indoor/outdoor unit connecting wire. Check disconnection or looseness or polarity of indoor/outdoor unit connecting wire of indoor and outdoor units. Check diameter and length of indoor/outdoor unit connecting wire. Total wiring length: 80 m (including wiring connecting each indoor unit and between indoor and outdoor unit) Also check if the connection order of flat cable is S, S, S. Check the number of indoor units that are connected to one outdoor unit. (If EA is detected) 4 6 Turn the power off once, and on again to check. Replace outdoor controller circuit board, indoor controller board or indoor power board if abnormality occurs again. 7 Check if refrigerant addresses (SW- to SW-6 on outdoor controller circuit board) are overlapping in case of group control system. 8 Check transmission path, and remove the cause. Note: The descriptions above, 8, are for EA, Eb and EC. EC Startup time over The unit cannot finish startup process within 4 minutes after power on. Contact failure of indoor/ outdoor unit connecting wire Diameter or length of indoor/ outdoor unit connecting wire is out of specified capacity. 7 or more outdoor units have refrigerant address 0. (In case of group control) 8 Noise has entered into power supply or indoor/outdoor unit connecting wire. EE Incorrect connection The outdoor unit does not receive the signals of I/F or FTC. A device other than Interface unit or Flow temp. controller unit is connected to the unit. Connect I/F or FTC to the unit. 9

30 <Abnormalities detected while unit is operating> Check code Abnormal point and detection method Case Judgment and action High pressure (High-pressure switch Check if stop valve is fully open. 6H operated) Abnormal if high-pressure switch 6H Check piping and repair defect. operated (4.5 MPa) during compressor 6 Check outdoor unit and repair defect. operation. U 6H: High-pressure switch Defective operation of stop valve (Not fully open) Clogged or broken pipe Locked outdoor fan motor 4 Malfunction of outdoor fan motor 5 Short cycle of outdoor unit 6 Dirt of outdoor heat exchanger 7 Decreased airflow caused by defective inspection of outside temperature thermistor (It detects lower temperature than actual temperature.) 8 Disconnection or contact failure of connector (6H) on outdoor controller board 9 Disconnection or contact failure of 6H connection 0 Defective outdoor controller board Defective action of linear expansion valve Malfunction of fan driving circuit 7 Check the detected temperature of outside temperature thermistor on LED display. (SW on A-Control Service Tool : Refer to "-7. FUNCTI OF SWITCHES, CNECTORS AND JUMPERS".) 8 0 Turn the power off and check F5 is displayed when the power is turned again. When F5 is displayed, refer to Judgment and action for F5. Check linear expansion valve. Refer to "-4. HOW TO CHECK THE PARTS". Replace outdoor controller board. U High discharge temperature () Abnormal if discharge temperature thermistor (TH4) exceeds 5: or 0: continuously for 5 minutes. Abnormal if discharge temperature thermistor (TH4) exceeds 0: or more continuously for 0 seconds after 90 seconds have passed since the defrosting operation started. () Abnormal if discharge superheat (Cooling: TH4 T6HS / Heating: TH4 T6HS) exceeds 70: continuously for 0 minutes. High comp. surface temperature Abnormal if comp. surface temperature (TH4) exceeds 5:. In the case of high comp. surface temperature error, compressor does not restart unless the thermistor (TH4) becomes less than 95:. Overheated compressor operation caused by shortage of refrigerant Defective operation of stop valve Defective thermistor 4 Defective outdoor controller board 5 Defective action of linear expansion valve 6 Clogging with foreign objects in refrigerant circuit Note: Clogging occur in the parts which become below freezing point when water enters in refrigerant circuit. Check intake superheat. Check leakage of refrigerant. Charge additional refrigerant. Check if stop valve is fully open. 4 Turn the power off and check if U is displayed when the power is turned on again. When U is displayed, refer to Judgment and action for U. 5 Check linear expansion valve. Refer to "-4. HOW TO CHECK THE PARTS". 6 After recovering refrigerant, remove water from entire refrigerant circuit under vacuum more than hour. U Open/short circuit of discharge temperature thermistor (TH4) / Comp. surface temperature thermistor (TH4) Abnormal if open (: or less) or short (7: or more) is detected during compressor operation. (Detection is inoperative for 0 minutes of compressor starting process and for 0 minutes after and during defrosting.) Disconnection or contact failure of connector (TH4/TH4) on the outdoor controller circuit board Defective thermistor Defective outdoor controller circuit board Check connection of connector (TH4/TH4) on the outdoor controller circuit board. Check breaking of the lead wire for thermistor (TH4/TH4). Refer to "-6. TEST POINT DIAGRAM". Check resistance value of thermistor (TH4/ TH4) or temperature by microprocessor. (Thermistor/TH4/TH4: Refer to "-4. HOW TO CHECK THE PARTS".) (SW on A-Control Service Tool: Refer to "-7. FUNCTI OF SWITCHES, CNECTORS AND JUMPERS". ) Replace outdoor controller board. 0

31 Check code Abnormal point and detection method Case Judgment and action U4 U5 Open/short of outdoor unit thermistors (TH, TH6, TH7, and TH8) Abnormal if open or short is detected during compressor operation. Open detection of thermistors TH and TH6 is inoperative for 0 seconds to 0 minutes after compressor starting and 0 minutes after and during defrosting. Note: Check which unit has abnormality in its thermistor by switching the mode of SW. (PAC-SK5ST) (Refer to "-7. FUNCTI OF SWITCHES, CNECTORS AND JUMPERS". ) Note: SW00/0V, Heat sink thermistor(th8) is in the power module. Temperature of heat sink Abnormal if heat sink thermistor (TH8) detects temperature indicated below. SW75VHA(R) 79 C SW75VHAR4 77 C SW00V 94 C SW00Y 84 C SW0V 94 C SW0Y 84 C Disconnection or contact failure of connectors Outdoor controller circuit board: TH, TH7/6 Outdoor power circuit board: ( ) CN Defective thermistor Defective outdoor controller circuit board The outdoor fan motor is locked. Failure of outdoor fan motor Air flow path is clogged. 4 Rise of ambient temperature 5 Defective thermistor 6 Defective input circuit of outdoor power circuit board 7 Failure of outdoor fan drive circuit Check connection of connector (TH, TH7/6) on the outdoor controller circuit board. Check connection of connector (CN) on the outdoor power circuit board. Check breaking of the lead wire for thermistor (TH, TH6,TH7,TH8). Refer to "-6. TEST POINT DIAGRAM". Check resistance value of thermistor (TH, TH6,TH7,TH8) or check temperature by microprocessor. (Thermistor/TH,TH6,TH7,TH8: Refer to "-4. HOW TO CHECK THE PARTS".) (SW on A-Control Service Tool: Refer to "-7. FUNCTI OF SWITCHES, CNECTORS AND JUMPERS".) Replace outdoor controller circuit board. Note: Emergency operation is available in case of abnormalities of TH, TH6 and TH7. Thermistors Symbol Name Open detection Short detection TH Thermistor <Liquid> 40 C or below 90 C or above TH6 Thermistor <-phase pipe> 40 C or below 90 C or above TH7 Thermistor <Ambient> 40 C or below 90 C or above TH8 Thermistor <Heat sink> SW75V SW00/0Y 7 C or below 0 C or above TH8 Internal thermistor SW00/0V 5 C or below 70 C or above Check outdoor fan. Check air flow path for cooling. 4 Check if there is something which causes temperature rise around outdoor unit. (Upper limit of ambient temperature is 46:.) Turn off power, and on again to check if U5 is displayed within 0 minutes. If U4 is displayed instead of U5, follow the action to be taken for U4. 5 Check resistance value of thermistor (TH8) or temperature by microprocessor. (Thermistor/TH8: Refer to "-4. HOW TO CHECK THE PARTS".) (SW on A-Control Service Tool: Refer to "-7. FUNCTI OF SWITCHES, CNECTORS AND JUMPERS".) 6 Replace outdoor power circuit board. 7 Replace outdoor controller circuit board. U6 U7 Power module Check abnormality by driving power module in case overcurrent is detected. (UF or UP error condition) Too low superheat due to low discharge temperature Abnormal if discharge superheat is continuously detected less than or equal to 5: for minutes even though linear expansion valve has minimum open pulse after compressor starts operating for 0 minutes. Outdoor stop valve is closed. Open stop valve. Decrease of power supply voltage Looseness, disconnection or converse of compressor wiring connection 4 Defective compressor 5 Defective outdoor power circuit board Disconnection or loose connection of discharge temperature thermistor (TH4) Defective holder of discharge temperature thermistor Disconnection or loose connection of linear expansion valve s coil 4 Disconnection or loose connection of linear expansion valve s connector 5 Defective linear expansion valve Check facility of power supply. Correct the wiring (U V W phase) to compressor. Refer to "-6. TEST POINT DIAGRAM" (Outdoor power circuit board). 4 Check compressor referring to "-5. HOW TO CHECK THE PARTS". 5 Replace outdoor power circuit board. Check the installation conditions of discharge temperature thermistor (TH4). Check the coil of linear expansion valve. Refer to "-5. HOW TO CHECK THE COMPENTS". 4 Check the connection or contact of LEV-A and LEV-B on outdoor controller circuit board. 5 Check linear expansion valve. Refer to "- 4. HOW TO CHECK THE PARTS". U8 Outdoor fan motor Failure in the operation of the Abnormal if rotational frequency of the fan DC fan motor motor is not detected during DC fan motor Failure in the outdoor circuit operation. controller board Fan motor rotational frequency is abnormal if; 00 rpm or below detected continuously for 5 seconds at 0: or more outside air temperature. 50 rpm or below or 500 rpm or more detected continuously for minute. Check or replace the DC fan motor. Check the voltage of the outdoor circuit controller board during operation. Replace the outdoor circuit controller board. (When the failure is still indicated even after performing the action above.)

32 Check Code Abnormal point and detection method Case Judgment and action U9 Detailed codes 0 0 To find out the details about U9 error, turn SW-, -, -, -4, -5 and -6 when U9 error occurs. To find out the detail history (latest) about U9 error, turn SW-, - and -6. Refer to "-7. FUNCTI OF SWITCHES, CNECTORS AND JUMPERS". Overvoltage error Increase in DC bus voltage to SW75VHA(R): 40 V SW75VHAR4: 400 V SW00, 0V: 400 V SW00, 0Y: 760 V Undervoltage error Instantaneous decrease in DC bus voltage to SW75, 00, 0V: 00 V SW00, 0Y: 50 V Abnormal increase in power source voltage Disconnection of compressor wiring Defective outdoor power circuit board 4 Compressor has a ground fault. Decrease in power source voltage, instantaneous stop Disconnection or loose connection of CN5C on the outdoor power circuit board/controller circuit board (SW00, 0V) Disconnection or loose connection of CN5C on the outdoor noise filter circuit board/controller circuit board (SW75VHA(R)) 4 Defective converter drive circuit in outdoor power circuit board (SW V) 5 Defective 5C drive circuit in outdoor power circuit board (SW00, 0V/Y, SW75VHAR4) 6 Defective 5C drive circuit in outdoor noise filter circuit board (SW75VHA(R)) 7 Defective outdoor converter circuit board (SW Y) 8 Disconnection or loose connection of rush current protect resistor RS (SW Y) 9 Defective rush current protect resistor RS (SW Y) 0 Disconnection or loose connection of main smoothing capacitor CB (SW00,0V) Disconnection or loose connection of CN on the outdoor power circuit board /controller circuit board (SW00,0V) Power circuit failure on DC supply for 8V DC output on outdoor controller circuit board (SW00,0V) Check the field facility for the power supply. Correct the wiring (U. V. W phase) to compressor. Refer to "-6. TEST POINT DIAGRAM" (Outdoor power circuit board). Replace outdoor power circuit board. 4 Check compressor for electrical insulation. Replace compressor. Check the field facility for the power supply. Check CN5C wiring. (SW V excluding SW75VHAR4) 4 Replace outdoor power circuit board. (SW V) 5 Replace outdoor power circuit board. (SW00,0V/Y, SW75VHAR4) 6 Replace outdoor noise filter circuit board. (SW75VHA(R)) 7 Replace outdoor converter circuit board. (SW Y) 8 Check RS wiring. (SW Y) 9 Replace RS. (SW Y) 0 Check CB wiring. (SW00,0V) Check CN wiring. (SW00,0V) Replace outdoor controller circuit board. (SW00,0V) 04 Input current sensor error/ L-phase open error Decrease in input current through outdoor unit to 0. A only if operation frequency is more than or equal to 40 Hz or compressor current is more than or equal to 6 A. L-phase open (SW Y) Disconnection or loose connection between TB and outdoor noise filter circuit board (SW75V(R), SW Y) Disconnection or loose connection of CN5 on the outdoor power circuit board/ CNCT on the outdoor noise filter board (SW75V(R), SW Y) 4 Defective ACCT (AC current trans) on the outdoor noise filter circuit board (SW75V(R), SW Y) 5 Defective input current detection circuit in outdoor power circuit board 6 Defective outdoor controller circuit board Check the field facility for the power supply. (SW Y) Check the wiring between TB and outdoor noise filter circuit board. (SW75V(R), SW Y) Check CN5/CNCT wiring. (SW75V(R), SW Y) 4 Replace outdoor noise filter circuit board. (SW Y) 5 Replace outdoor power circuit board. 6 Replace outdoor controller circuit board. 08 Abnormal power synchronous signal No input of power synchronous signal to power circuit board Power synchronous signal of 44 Hz or less, or 65 Hz or more is detected on power circuit board. Distortion of power source voltage, Noise superimposition. Disconnection or loose connection of earth wiring Disconnection or loose connection of CN on the outdoor power circuit board /controller circuit board 4 Defective power synchronous signal circuit in outdoor controller circuit board 5 Defective power synchronous signal circuit in outdoor power circuit board Check the field facility for the power supply. Check earth wiring. Check CN wiring. 4 Replace outdoor controller circuit board. 5 Replace outdoor power circuit board.

33 Check Code Abnormal point and detection method Case Judgment and action U9 Detailed codes 0 PFC error (Overvoltage/ Undervoltage/Overcurrent) PFC detected any of the following a) Increase of DC bus voltage to 40 V (SW75VHA(R),SW V), 400 V (SW75VHAR4) b) Decrease in PFC control voltage to V DC or lower c) Increase in input current to 50A peak (SW75V only) Abnormal increase in power source voltage Decrease in power source voltage, instantaneous stop Disconnection of compressor wiring 4 Misconnection of reactor (ACL) 5 Defective outdoor power circuit board 6 Defective reactor (ACL) 7 Disconnection or loose connection of CN on the outdoor power circuit board/ controller circuit board Check the field facility for the power supply. Correct the wiring (U. V. W phase) to compressor. Refer to "-6. TEST POINT DIAGRAM" (Outdoor power circuit board). 4 Correct the wiring of reactor (ACL). 5 Replace outdoor power circuit board. 6 Replace reactor (ACL). 7 Check CN wiring. 0 PFC/IGBT error (Undervoltage) When Compressor is running, DC bus voltage stays at 0V or lower for consecutive 0 seconds (SW V only) Incorrect switch settings on the outdoor controller circuit board for model select Defective outdoor power circuit board Defective outdoor controller circuit board Correction of a model select Replace outdoor power circuit board. Replace outdoor controller circuit board. Ud Overheat protection Abnormal if liquid thermistor (TH), condensing temperature T6HS detects 70: or more during compressor operation. Defective outdoor fan (fan motor) or short cycle of outdoor unit during cooling operation Defective liquid thermistor (TH), condensing temperature T6HS Defective outdoor controller board Check outdoor unit air passage. Turn the power off and on again to check the check code. If U4 is displayed, follow the U4 processing direction. UE UF Abnormal pressure of pressure sensor (6HS) Abnormal if pressure sensor (6HS) detects 0. MPa or less. Detection is inoperative for minutes after compressor starting and minutes after and during defrosting. Compressor overcurrent interruption (When compressor locked) Abnormal if overcurrent of DC bus or compressor is detected within 0 seconds after compressor starts operating. Disconnection or contact failure of connector (6HS) on the outdoor controller circuit board Defective pressure sensor Defective outdoor controller circuit board Stop valve is closed. Decrease of power supply voltage Looseness, disconnection or converse of compressor wiring connection 4 Defective compressor 5 Defective outdoor power board Check connection of connector (6HS) on the outdoor controller circuit board. Check breaking of the lead wire for thermistor (6HS). Check pressure by microprocessor. (Pressure sensor/ 6HS) (SW: Refer to "-7. FUNCTI OF SWITCHES, CNECTORS AND JUMPERS". ) Replace outdoor controller board. Open stop valve. Check facility of power supply. Correct the wiring (U V W phase) to compressor. Refer to "-6. TEST POINT DIAGRAM". (Outdoor power circuit board). 4 Check compressor. Refer to "-4. HOW TO CHECK THE PARTS". 5 Replace outdoor power circuit board. UH UL Current sensor error or input current error Abnormal if current sensor detects.0a to.0a during compressor operation. (This error is ignored in case of test run mode.) Abnormal if 40A (SW00/0V, SW75VHAR4) of input current is detected or 7A (SW00/0V, SW75VHAR4) or more of input current is detected for 0 seconds continuously. Low pressure (6L operated) (SW00/0 only) Abnormal if 6L is operated (under 0.0MPa) during compressor operation. 6L: Low-pressure switch Disconnection of compressor wiring Defective circuit of current sensor on outdoor power circuit board Decrease of power supply voltage 4 Leakage or shortage of refrigerant Stop valve of outdoor unit is closed during operation. Disconnection or loose connection of connector (6L) on outdoor controller board Disconnection or loose connection of 6L 4 Defective outdoor controller board 5 Leakage or shortage of refrigerant 6 Malfunction of linear expansion valve Correct the wiring (U V W phase) to compressor. Refer to "-6. TEST POINT DIAGRAM" (Outdoor power circuit board). Replace outdoor power circuit board. Check the facility of power supply. 4 Check leakage of refrigerant. Check stop valve. 4 Turn the power off and on again to check if F is displayed on restarting. If F is displayed, follow the F processing direction. 5 Correct to proper amount of refrigerant. 6 Check linear expansion valve. Refer to "-4. HOW TO CHECK THE PARTS".

34 Check Code Abnormal point and detection method Judgment and action Case UP Compressor overcurrent interruption Abnormal if overcurrent DC bus or compressor is detected after compressor starts operating for 0 seconds. Stop valve of outdoor unit is closed. Decrease of power supply voltage Looseness, disconnection or converse of compressor wiring connection 4 Defective fan of outdoor units 5 Short cycle of outdoor units 6 Defective input circuit of outdoor controller board 7 Defective compressor 8 Defective outdoor power circuit board 9 Dip switch setting difference of outdoor controller circuit board Open stop valve. Check facility of power supply. Correct the wiring (U V W phase) to compressor. Refer to "-6. TEST POINT DIAGRAM" (Outdoor power circuit board). 4 Check outdoor fan. 5 Solve short cycle. 6 Replace outdoor controller circuit board. Note: Before the replacement of the outdoor controller circuit board, disconnect the wiring to compressor from the outdoor power circuit board and check the output voltage among phases, U, V, W, during test run. No defect on board if voltage among phases (U-V, V-W and W-U) is same. Make sure to perform the voltage check with same performing frequency. 7 Check compressor. Refer to "-4. HOW TO CHECK THE PARTS". 8 Replace outdoor power circuit board. 9 Check the DIP switch setting of outdoor controller circuit board. E0 or E4 Remote controller transmission error (E0)/ signal receiving error (E4) Abnormal if main or sub remote controller cannot receive normally any transmission from indoor unit of refrigerant address 0 for minutes. (Check code : E0) Abnormal if sub remote controller could not receive any signal for minutes. (Check code: E0) Abnormal if indoor controller board cannot receive normally any data from remote controller board or from other indoor controller board for minutes. (Check code: E4) Indoor controller board cannot receive any signal from remote controller for minutes. (Check code: E4) Contact failure at transmission wire of remote controller All remote controllers are set as sub remote controller. In this case, E0 is displayed on remote controller, and E4 is displayed at LED (LED, LED) on the outdoor controller circuit board. Miswiring of remote controller 4 Defective transmitting receiving circuit of remote controller 5 Defective transmitting receiving circuit of indoor controller board of refrigerant address 0 6 Noise has entered into the transmission wire of remote controller. Check disconnection or looseness of indoor unit or transmission wire of remote controller. Set one of the remote controllers main if there is no problem with the action above. Check wiring of remote controller. Refer to the indoor unit's Installation Manual for remote controller connection. If the cause of trouble is not in above, 4 Diagnose remote controllers. a) When RC OK is displayed, Remote controllers have no problem. Turn the power off, and on again to check. If abnormality generates again, replace indoor controller board. b) When RC NG is displayed, Replace remote controller. c) When "RCE" or "ERC00-66" is displayed, noise may be causing abnormality. Note: If the unit is not normal after replacing indoor controller board in group control, indoor controller board of address 0 may be abnormal. E or E Remote controller control board Abnormal if data cannot be normally read from the nonvolatile memory of the remote controller control board. (Check code: E) Abnormal if the clock function of remote controller cannot be normally operated. (Check code: E) Defective remote controller Replace remote controller. 4

35 Check code Abnormal point and detection method Judgment and action Case E or E5 E6 Remote controller transmission error (E)/ signal receiving error (E5) Abnormal if remote controller could not find blank of transmission path for 6 seconds and could not transmit. (Check code: E) Remote controller receives transmitted data at the same time, compares the data, and when detecting it, judges different data to be abnormal 0 continuous times. (Check code: E) Abnormal if indoor controller board could not find blank of transmission path. (Check code: E5) Indoor controller board receives transmitted data at the same time, compares the data, and when detecting it, judges different data to be abnormal 0 continuous times. (Check code: E5) Interface unit/flow temp. controller or outdoor unit communication error (Signal receiving error) Abnormal if Interface unit/flow temp. controller cannot receive any signal normally for 6 minutes after turning the power on. Abnormal if Interface unit/flow temp. controller cannot receive any signal normally for minutes. remote controller are set as main. (In case of remote controllers) Remote controller is connected with indoor units or more. Repetition of refrigerant address 4 Defective transmitting receiving circuit of remote controller 5 Defective transmitting receiving circuit of indoor controller board 6 Noise has entered into transmission wire of remote controller. Contact failure, short circuit or, miswiring (converse wiring) of Interface unit/flow temp. controller or outdoor unit connecting wire Defective transmitting receiving circuit of outdoor controller circuit board Defective transmitting receiving circuit of Interface unit/flow temp. controller 4 Noise has entered into Interface unit/flow temp. controller or outdoor unit connecting wire. Set a remote controller to main, and the other to sub. Remote controller is connected with only one indoor unit. The address changes to a separate setting. 4 6 Diagnose remote controller. a) When RC OK is displayed, remote controllers have no problem. Turn the power off, and on again to check. When becoming abnormal again, replace indoor controller board. b) When RC NG is displayed, replace remote controller. c) When RC E or ERC is displayed, noise may be causing abnormality. Note: Check LED display on the outdoor controller circuit board. (Connect A-control service tool, PAC-SK5ST.) Check disconnection or looseness of Interface unit/flow temp. controller or outdoor unit connecting wire of Interface unit/ Flow temp. controller or outdoor unit. 4 Turn the power off, and on again to check. If abnormality generates again, replace Interface unit/flow temp. controller or outdoor controller circuit board. E8 E9 Indoor/outdoor unit communication error (Signal receiving error) (Outdoor unit) Abnormal if outdoor controller circuit board could not receive anything normally for minutes. Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit) Abnormal if 0 receiving is detected 0 times continuously though outdoor controller circuit board has transmitted. Abnormal if outdoor controller circuit board could not find blank of transmission path for minutes. Contact failure of indoor/ outdoor unit connecting wire Defective communication circuit of outdoor controller circuit board Defective communication circuit of indoor controller board 4 Noise has entered into indoor/ outdoor unit connecting wire. Indoor/ outdoor unit connecting wire has contact failure. Defective communication circuit of outdoor controller circuit board Noise has entered power supply. 4 Noise has entered indoor/ outdoor unit connecting wire. Check disconnection or looseness of indoor/ outdoor unit connecting wire of indoor or outdoor units. 4 Turn the power off, and on again to check. Replace indoor controller board or outdoor controller circuit board if abnormality is displayed again. Check disconnection or looseness of indoor/ outdoor unit connecting wire. 4 Turn the power off, and on again to check. Replace outdoor controller circuit board if abnormality is displayed again. EF Non defined check code This code is displayed when non defined check code is received. Noise has entered transmission wire of remote controller. Noise has entered indoor/ outdoor unit connecting wire. Outdoor unit is not inverter models. Turn the power off, and on again to check. Replace indoor controller board or outdoor controller circuit board if abnormality is displayed again. Replace outdoor unit with inverter type outdoor unit. Ed Serial communication error Breaking of wire or contact Abnormal if serial communication between failure of connector CN outdoor controller circuit board and between the outdoor controller outdoor power circuit board is defective. circuit board and the outdoor power circuit board Breaking of wire or contact failure of connector CN4 between the outdoor controller circuit board and the outdoor power circuit board Defective communication circuit of outdoor power circuit board 4 Defective communication circuit of outdoor controller circuit board for outdoor power circuit board Check connection of each connector CN and CN4 between the outdoor controller circuit board and the outdoor power circuit board. Replace outdoor power circuit board. 4 Replace outdoor controller circuit board. 5

36 Check Code Abnormal point and detection method Judgment and action Case P6 Freezing/overheating protection is working Overheating protection <Heating mode> Abnormal if condensing temperature of pressure sensor (6HS) detects Tcond. C or more and compressor operation frequency is less than or equal to 5 Hz. Detection is inoperative during defrosting. Tcond stage-g stage-f stage-e Overcharge of refrigerant Defective refrigerant circuit (clogs) Malfunction of linear expansion valve 4 Reduced water flow Clogged filter Leakage of water 5 High temperature Over-load Inlet water is too warm. 6 Defective water pump stage-d stage-c Check operating condition of refrigerant circuit. Check linear expansion valve. 45 Check water piping. 6 Check water pump. stage-b stage-a stage-s Tcond stage-a stage-b stage-c stage-d stage-e stage-f stage-g stage-s SW SW00/ Ambient temperature (TH7) [ C] P9 Actual tank temperature thermistor (TH5) The unit is -minute resume prevention mode if short/open of thermistor is detected. Abnormal if the unit does not reset normally after minutes. (The unit returns to normal operation, if it has been reset normally) Constantly detected during cooling, heating, heating ECO, anti freeze and hot water operation. -. TROUBLESHOOTING Phenomena Factor Countermeasure. Remote controller display does not work.. PLEASE WAIT display is remained on the remote controller. Defective thermistor characteristics Contact failure of interface unit/ Flow temp. controller Refer to the indoor unit's Installation Manual for TH5 connection. Breaking of wire or contact failure of thermistor wiring 4 Defective PCB of interface unit/flow temp. controller V DC is not supplied to remote controller. (Power supply display is not indicated on LCD.) 5 V DC is supplied to remote controller, however, no display is indicated. PLEASE WAIT is not displayed. PLEASE WAIT is displayed. At longest minutes after the power supply PLEASE WAIT is displayed to start up. Communication error between the remote controller and indoor unit Communication error between the indoor and outdoor unit 4 Outdoor unit protection device connector is open. 6 Check resistance value of thermistor. 0: k" 0:... 0: k" 9.6 k" 40: 0: k" 6. k" If you put force on (draw or bend) the lead wire with measuring resistance value of thermistor, breaking of wire or contact failure can be detected. Check contact failure of Interface unit/flow temp. controller. Refer to the indoor unit's Installation Manual. Turn the power on again and check restart after inserting connector again. 4 Check actual tank temperature display on remote controller. Replace PCB of Interface unit/flow temp. controller if there is abnormal difference with actual tank temperature. Turn the power off, and on again to operate after check. Check LED on indoor controller board. () When LED is lit. Check the remote controller wiring for breaking or contact failure. () When LED is blinking. Check short circuit of remote controller wiring. () When LED is not lit. Refer to No. below. Check the following. Failure of remote controller if PLEASE WAIT is not displayed Refer to No. below if PLEASE WAIT is displayed. Normal operation Self-diagnosis of remote controller PLEASE WAIT is displayed for 6 minutes at most in case of indoor/outdoor unit communication error. Check LED on indoor controller board. () When LED is not blinking. Check indoor/outdoor connecting wire for miswiring. (Converse wiring of S and S, or break of S wiring.) () When LED is blinking. Indoor/outdoor connecting wire is normal. 4 Check LED display on outdoor controller circuit board. Refer to "-7. FUNCTI OF SWITCHES, CNECTORS AND JUMPERS". Check protection device connector (6L and 6H) for contact failure. Refer to "-6. TEST POINT DIAGRAM".

37 Phenomena. When pressing the remote controller operation switch, the OPERATI display is appeared but it will be turned off soon. Factor After cancelling to select function from the remote controller, the remote controller operation switch will be not accepted for approx. 0 seconds. Countermeasure Normal operation 4. Even controlling by the wireless remote controller, no beep is heard and the unit does not start operating. Operation display is indicated on wireless remote controller. The pair number settings of the wireless remote controller and indoor controller board are mismatched. Check the pair number settings. 5. When operating by the wireless remote controller, beep sound is heard, however, unit does not start operating. No operation for minutes at most after the power supply. Local remote controller operation is prohibited. Remote controlling adaptor is connected to CN on the indoor controller board. Local remote controller operation is prohibited by centralized controller etc. since it is connected to MELANS. Phenomena of No.. Normal operation Normal operation Check the phenomena No.. 6. Remote controller display works Refrigerant shortage normally and the unit performs cooling operation, however, the capacity cannot be fully obtained. (The air does not cool well.) Filter clogging Heat exchanger clogging 4Air duct short cycle If refrigerant leaks, discharging temperature rises and LEV opening increases. Inspect leakage by checking the temperature and opening. Check pipe connections for gas leakage. Open intake grille and check the filter. Clean the filter by removing dirt or dust on it. If the filter is clogged, indoor pipe temperature rises and discharging pressure increases. Check if heat exchanger is clogged by inspecting discharging pressure. Clean the heat exchanger. 4Remove the blockage. 7. Remote controller display works normally and the unit performs heating operation, however, the capacity cannot be fully obtained. Linear expansion valve fault Opening cannot be adjusted well due to linear expansion valve fault. Refrigerant shortage Lack of insulation for refrigerant piping 4Filter clogging 5Heat exchanger clogging 6Air duct short cycle 7Bypass circuit of outdoor unit fault Discharging temperature and indoor heat exchanger temperature does not rise. Inspect the failure by checking discharging pressure. Replace linear expansion valve. If refrigerant leaks, discharging tempera ture rises and LEV opening increases. Inspect leakage by checking the temperature and opening. Check pipe connections for gas leakage. Check the insulation. 4Open intake grille and check the filter. Clean the filter by removing dirt or dust on it. 5 If the filter is clogged, indoor pipe temperature rises and discharging pressure increases. Check if heat exchanger is clogged by inspecting discharging pressure. Clean the heat exchanger. 6Remove the blockage. 7Check refrigerant system during operation. 8. For minutes after temperature adjuster turns off, the compressor will not start operating even if temperature adjuster is turned on. For minutes after temperature adjuster turns on, the compressor will not stop operating even if temperature adjuster is turned off. (Compressor stops operating immediately when turning off by the remote controller.) Normal operation (For protection of compressor) Normal operation 7

38 Phenomena A flowing water sound or occasional hissing sound is heard. Water does not heat or cool well. Water or vapour is emitted from the outdoor unit. Countermeasure These sounds can be heard when refrigerant and/or water is (are) flowing in the indoor unit or refrigerant pipe, or when the refrigerant and/or water is (are) chugging. Clean the filter of water piping. (Flow is reduced when the filter is dirty or clogged.) Check the temperature adjustment and adjust the set temperature. Make sure that there is plenty of space around the outdoor unit. During cooling mode, water may form and drip from the cool pipes and joints. During heating mode, water may form and drip from the heat exchanger of outdoor unit. During defrosting mode, water on the heat exchanger of outdoor unit evaporates and water vapour may be emitted. The operation indicator does not appear in the remote controller display. Turn on the power switch. will appear in the remote controller display. appears in the remote controller display. During external signal control, appears in the remote controller display and FTC operation cannot be started or stopped using the remote controller. When restarting the outdoor unit soon after stopping it, it does not operate even though the / button is pressed. FTC operates without the / button being pressed. FTC stops without the / button being pressed. Remote controller timer operation cannot be set. PLEASE WAIT appears in the remote controller display. An check code appears in the remote controller display. Wait approximately minutes. (Operation has stopped to protect the outdoor unit.) Is the on timer set? Press the / button to stop operation. Is the FTC connected to a external signal? Consult the concerned people who control the FTC. Does appear in the remote controller display? Consult the concerned people who control the FTC. Has the auto recovery feature from power failures been set? Press the / button to stop operation. Is the off timer set? Press the / button to restart operation. Is the air conditioner connected to a central remote controller? Consult the concerned people who control the FTC. Does appear in the remote controller display? Consult the concerned people who control the FTC. Are timer settings invalid? If the timer can be set, WEEKLY, SIMPLE, or AUTO appears in the remote controller display. The initial settings are being performed. Wait approximately minutes. If the remote controller is not only for FTC, change it. The protection devices have operated to protect the FTC and outdoor unit. Do not attempt to repair this equipment by yourself. Turn off the power switch immediately and consult your dealer. Be sure to provide the dealer with the model name and information that appeared in the remote controller display. If the unit cannot be operated properly after test run, refer to the following table to find the cause. Symptom Wired remote controller LED, (PCB in outdoor unit) PLEASE WAIT PLEASE WAIT Check code Display messages do not appear even when operation switch is turned (operation lamp does not light up). For about minutes after power-on Subsequent to about minutes after power-on After LED, are lighted, LED is turned off, then only LED is lighted. (Correct operation) Only LED is lighted. LED, blink. Only LED is lighted. LED blinks twice, LED blinks once. Cause For about minutes following power-on,operation of the remote controller is not possible due to system start-up. (Correct operation) Connector for the outdoor unit s protection device is not connected. Reverse or open phase wiring for the outdoor unit s power terminal block (L, L, L) Incorrect wiring between FTC and outdoor (incorrect polarity of S, S, S) Remote controller wire short Note: Operation is not possible for about 0 seconds after cancellation of function selection. (Correct operation) For description of each LED (LED,, ) provided on the FTC, refer to the following table. LED (power for microprocessor) Indicates whether control power is supplied. Make sure that this LED is always lit. LED (power for remote controller) Indicates whether power is supplied to the remote controller. This LED lights only in the case of the FTC which is connected to the outdoor unit refrigerant addresses 0. LED (communication between FTC and outdoor units) Indicates state of communication between the FTC and outdoor units. Make sure that this LED is always blinking. 8

39 Symptoms: PLEASE WAIT is kept being displayed on the remote controller. Diagnosis flow Cause Inspection method and troubleshooting Check the display time of PLEASE WAIT after turning on the main power. 6 minutes or more How long is PLEASE WAIT kept being displayed on the remote controller? to 6 minutes minutes or less PLEASE WAIT will be displayed during the start-up diagnosis after turning on the main power. Normal The start-up diagnosis will be over in around minutes. Are any check codes displayed on the remote controller? NO Check the LED display of the outdoor controller circuit board. YES Are any check codes displayed on the LED? NO YES Miswiring of indoor/ outdoor connecting wire Breaking of indoor/ outdoor connecting wire (S) Defective indoor controller board Defective outdoor controller circuit board Refer to Self-diagnosis action table in order to solve the trouble. In case of communication errors, the display of remote controller may not match the LED display of the outdoor unit. Defective indoor controller board Defective remote controller 9

40 Symptoms: Nothing is displayed on the remote controller. LED display of the indoor controller board LED : LED : LED : Diagnosis flow Cause Inspection method and troubleshooting Check the voltage between S and S on the terminal block (TB4) of the indoor unit which is used to connect the indoor unit and the outdoor unit. 98 to 64 V AC? YES NO Check the voltage among L(L) and N on the terminal block (TB) of the outdoor power circuit board. 98 to 64 V AC? YES Check the voltage between S and S on the terminal block (TB) of the outdoor unit which is used to connect the indoor unit and the outdoor unit. NO Troubles concerning power supply Check the power wiring to the outdoor unit. Check the breaker. Check the voltage of indoor controller board (CND). 98 to 64 V AC? YES NO Bad wiring of the outdoor controller board The fuses on the outdoor controller circuit board are blown. Check the wiring of the outdoor unit. Check if the wiring is bad. Check if the fuses are blown. The fuses on the outdoor controller circuit board will be blown when the indoor /outdoor connecting wire short-circuits. to 6 V DC? NO Check the voltage of the unit after removing the indoor power board (CNS). YES Bad wiring of the outdoor controller board The fuses on the outdoor controller circuit board are blown. Defective indoor controller board Check if miswiring, breaking or poor contact is causing this problem. Indoor/outdoor connecting wire is polarized -core type. Connect the indoor unit and the outdoor unit by wiring each pair of S, S and S on the both side of indoor/outdoor terminal blocks. Replace the indoor controller board. to 6 V DC? NO YES Miswiring, breaking or poor connection of indoor/outdoor connecting wire Check if there is miswiring or breaking of wire. Defective indoor power board Replace the indoor power board. 40

41 Symptoms: Nothing is displayed on the remote controller. LED display of the indoor controller board LED : LED : LED : or Diagnosis flow Check the voltage between S and S on the terminal block (TB4) of the indoor unit which is used to connect the indoor unit and the outdoor unit. Cause Inspection method and troubleshooting 98 to 64 V AC? NO YES Check the status of the indoor controller board LED display. Blinking. Check the refrigerant address of the outdoor unit. (SW- to -6) Not lighting. Check the looseness or disconnection of the indoor/outdoor connecting wire. Are there looseness or disconnection of the indoor/ outdoor connecting wire? NO YES Breaking or poor contact of the indoor/outdoor connecting wire Fix the breaking or poor contact of the indoor/outdoor connecting wire. Is the refrigerant address 0? NO YES Check the LED display of the outdoor unit after turning on the main power again. Normal Only the unit which has the refrigerant address 0 supplies power to the remote controller. Set the refrigerant address to 0. In case of the multiple grouping system, recheck the refrigerant address again. Is anything displayed? Displayed. Not displayed. Defective outdoor controller circuit board Replace the outdoor controller circuit board. Is EA or Eb displayed? NO YES Is E8 displayed? NO YES Defective outdoor controller circuit board Replace the outdoor controller circuit board. Can the unit be restarted? Check the voltage between S and S on the terminal block of the outdoor unit. 7 to 8 V DC? YES NO Can all the indoor unit be operated? YES NO Defective indoor controller board Influence of electromagnetic noise Defective outdoor power circuit board Defective indoor power board Replace the indoor controller board of the indoor unit which does not operate. Not abnormal. There may be the influence of electromagnetic noise. Check the transmission wire and get rid of the causes. Replace the outdoor power circuit board. Replace the indoor power board. 4

42 Symptoms: Nothing is displayed on the remote controller. LED display of the indoor controller board LED : LED : or LED : Diagnosis flow Cause Inspection method and troubleshooting Check the voltage of the terminal block (TB6) of the remote controller. 0 to 6 V DC? YES Defective remote controller Replace the remote controller. NO Check the status of the LED. Blinking Check the status of the LED after disconnecting the remote controller wire from the terminal block of the indoor unit. Lighting Breaking or poor contact of the remote controller wire Check if there is breaking or poor contact of the remote controller wire. Check the voltage of the terminal block connecting the remote controller wire. If it is not between 0 and 6 V DC, the indoor controller board must be defective. Check the status of the LED. Blinking Lighting The remote controller wire short-circuits Check if the remote controller wire is short-circuited. Defective indoor controller board Replace the indoor controller board. 4

43 -4. HOW TO CHECK THE PARTS PUHZ-SW75VHA.UK PUHZ-SW75VHAR.UK PUHZ-SW75VHAR4.UK PUHZ-SW75VHA-BS.UK PUHZ-SW75VHAR-BS.UK PUHZ-SW75VHAR4-BS.UK PUHZ-SW00VHA.UK PUHZ-SW00VHAR.UK PUHZ-SW00VHAR4.UK PUHZ-SW00VHA-BS.UK PUHZ-SW00VHAR-BS.UK PUHZ-SW00VHAR4-BS.UK PUHZ-SW00YHA.UK PUHZ-SW00YHAR.UK PUHZ-SW00YHAR.UK PUHZ-SW00YHAR4.UK PUHZ-SW00YHA-BS.UK PUHZ-SW00YHAR-BS.UK PUHZ-SW00YHAR-BS.UK PUHZ-SW00YHAR4-BS.UK PUHZ-SW0VHA.UK PUHZ-SW0VHAR.UK PUHZ-SW0VHAR4.UK PUHZ-SW0VHA-BS.UK PUHZ-SW0VHAR-BS.UK PUHZ-SW0VHAR4-BS.UK PUHZ-SW0YHA.UK PUHZ-SW0YHAR.UK PUHZ-SW0YHAR.UK PUHZ-SW0YHAR4.UK PUHZ-SW0YHA-BS.UK PUHZ-SW0YHAR-BS.UK PUHZ-SW0YHAR-BS.UK PUHZ-SW0YHAR4-BS.UK Parts name Thermistor (TH) <Liquid> Thermistor (TH4) <Discharge> Thermistor (TH6) <-phase pipe> Thermistor (TH7) <Ambient> Thermistor (TH8) <Heat sink> (SW75V, SW00/0Y) Thermistor (TH4) <Comp. surface> Fan motor (MF,MF) Check points Disconnect the connector then measure the resistance with a tester. (At the ambient temperature 0 to 0:) TH4 TH4 TH TH6 TH7 TH8 Refer to the next page. Normal 60 to 40 k" 4. to 9.6 k" 9 to 05 k" Abnormal Open or short Solenoid valve coil <4-way valve> (S4) Measure the resistance between the terminals with a tester. (At the ambient temperature 0:) Normal 45i50 " Abnormal Open or short Motor for compressor (MC) U V W Linear expansion valve (LEV-A/LEV-B) Measure the resistance between the terminals with a tester. (Winding temperature 0:) SW75V (R/R/R) 0.88 " Normal SW75VR " SW00/0V Disconnect the connector then measure the resistance with a tester. (Winding temperature 0:) SW00/0Y 0.9 " 0.0 " Abnormal Open or short M Gray Orange Red Yellow 4 Black 5 Normal Gray - Black Gray - Red Gray - Yellow Gray - Orange 46i " Abnormal Open or short 4

44 Check method of DC fan motor (fan motor/outdoor controller circuit board) Notes High voltage is applied to the connecter (CNF, ) for the fan motor. Pay attention to the service. Do not pull out the connector (CNF, ) for the motor with the power supply on. (It causes trouble of the outdoor controller circuit board and fan motor.) Self check Symptom : The outdoor fan cannot rotate. Fuse check Check the fuse (F5) on outdoor controller board. Did the fuse blow? No Wiring contact check Contact of fan motor connector (CNF, ) Yes Replace the outdoor controller board (C.B) and the fan motor (MF, ). Is there contact failure? Yes Recover wiring. No Power supply check (Remove the connector (CNF, )) Measure the voltage in the outdoor controller circuit board. TEST POINT : VDC (between (+) and 4 ( ) of the fan connector):vdc 50 0 V DC TEST POINT : VCC (between 5 (+) and 4 ( ) of the fan connector):vcc 5 V DC Is the voltage normal? No Replace the outdoor controller board. OK Yes Replace the fan motor. Yes OK Check the operation of fan. Fail Replace the outdoor controller board. END Check the operation. END Fail Replace the fan motor. -5. HOW TO CHECK THE COMPENTS <HIGH PRESSURE SENSOR> Vout (V) SENSOR Vout WHT BLU BLK MULTI CTROLLER BOARD 5 V DC MICRO PROCESSOR 0.5 6HS GND.5 5 PRESSURE (MPa) - : 5 V (DC) - : Output Vout (DC) 44

45 <Thermistor feature chart> Low temperature thermistors Thermistor <Liquid> (TH) Thermistor <-phase pipe> (TH6) Thermistor <Ambient> (TH7) Thermistor R0 = 5 k" ± % B constant = 480 ± % Rt =5exp{480( 7+t 7 )} 0: 5 k" 0: 9.6 k" 0: 6. k" 5: 5. k" 0: 4. k" 40:.0 k" Resistance (k") Temperature (:) Medium temperature thermistor 00 Thermistor <Heat sink> (TH8) (SW75V, SW00/0Y only) Thermistor R50 = 7 k" ± % B constant = 450 ± % Rt =7exp{450( 7+t )} 0: 80 k" 5: 50 k" 50: 7 k" 70: 8 k" 90: 4 k" Resistance (k") Temperature (:) High temperature thermistor Thermistor <Discharge> (TH4) Thermistor <Comp. surface> (TH4) Thermistor R0 = k" ± % B constant = 4057 ± % Rt =7.465exp{4057( 7+t 9 )} 0: 50 k" 0: 60 k" 40: 04 k" 50: 70 k" 60: 48 k" 70: 4 k" 80: 4 k" 90: 7.5 k" 00:.0 k" 0: 9.8 k" Resistance (k") Temperature (:) 45

46 Linear expansion valve () Operation summary of the linear expansion valve Linear expansion valve opens/closes through stepping motor after receiving the pulse signal from the outdoor controller board. Valve position can be changed in proportion to the number of pulse signal. <Connection between the outdoor controller board and the linear expansion valve> Outdoor controller board V DC LEV Gray Drive circuit 6 M 5 4 [4 [ [ Orange Red Yellow 4 [4 [ [ [ Black 5 [ Connector LEV-A LEV-B <Output pulse signal and the valve operation> Output (Phase) [ Output Opening a valve : Closing a valve : The output pulse shifts in above order. [ [ When linear expansion valve operation stops, all output phases become. [4 () Linear expansion valve operation Valve position (capacity) Close Open A C 500 pulse Opening a valve all the way When the power is turned on, 700 pulse closing valve signal will be sent till it goes to A point in order to define the valve position. (The pulse signal is being sent for about 0 seconds.) When the valve moves smoothly, there is no sound or vibration occurring from the linear expansion valve : however, when the pulse number moves from B to A or when the valve is locked, more sound can be heard. No sound is heard when the pulse number moves from B to A in case coil is burnt out or motor is locked by open-phase. Sound can be detected by placing the ear against the screw driver handle while putting the screw driver to the linear expansion valve. B Pulse number Extra tightening (about pulse) 46

47 () How to attach and detach the coil of linear expansion valve <Composition> Linear expansion valve is separable into the main body and the coil as shown in the diagram below. Coil Stopper Main body Lead wire <How to detach the coil> Hold the lower part of the main body (shown as A) firmly so that the main body does not move and detach the coil by pulling it upward. Be sure to detach the coil holding main body firmly. Otherwise pipes can bend due to stress. A <How to attach the coil> Hold the lower part of the main body (shown as A) firmly so that the main body does not move and attach the coil by inserting it downward into the main body. Then securely attach the coil stopper to main body. (At this time, be careful that stress is not added to lead wire and main body is not wound by lead wire.) If the stopper is not firmly attached to main body, coil may be detached from the main body and that can cause defective operation of linear expansion valve. To prevent piping stress, be sure to attach the coil holding the main body of linear expansion valve firmly. Otherwise pipe may break. Be sure to attach the stopper. A 47

48 -6. TEST POINT DIAGRAM Outdoor controller circuit board PUHZ-SW75VHA(-BS).UK PUHZ-SW75VHAR(-BS).UK PUHZ-SW00VHA(-BS).UK PUHZ-SW00VHAR(-BS).UK PUHZ-SW0VHA(-BS).UK PUHZ-SW0VHAR(-BS).UK PUHZ-SW00YHA(-BS).UK PUHZ-SW0YHA(-BS).UK PUHZ-SW00YHAR(-BS).UK PUHZ-SW00YHAR(-BS).UK PUHZ-SW0YHAR(-BS).UK VCC (TEST POINT ) (voltage between pins of C6B): 5 V DC PUHZ-SW0YHAR(-BS).UK CNDC V DC Connect from outdoor power circuit board for VHA, connect from noise filter board for YHA(CNDC) } + VDC (TEST POINT ) (voltage between pins of C5E) : V DC CNS (Indoor/outdoor unit connecting wire) VSP (TEST POINT ) (voltage between pins of C5A, C5B): 0 V DC (when stopped), 6.5 V DC (when operated) 6H High pressure switch VFG (TEST POINT 4) (voltage between right pins of PC5C and PC5D, pin and pin 4) CNAC 4: Power supply for outdoor controller circuit board (0 V AC) : Power supply for indoor and outdoor unit connection wire (0 V AC) CN Connect to the outdoor power circuit board (CN) 5: Power circuit board Transmitting signal to the controller circuit board (0 5 V DC) 5: Zero cross signal (0-5V DC) 4: Not used (SW75V,00/0Y) 8 V DC (SW00/0V) 6 5: 6 V DC 7 5: 6 V DC [5:,,6,7: + ] TH6 Thermistor <-phase pipe> TH7 Thermistor<Ambient> TH Thermistor <Liquid> TH4 Thermistor <Discharge> 6HS High pressure sensor TH4 Thermistor <Comp. surface> LEV-A,-B Linear expansion valve S4 4-way valve CN4 Transmission to outdoor power circuit board (CN4) 6L Low pressure switch (SW00/0) SW4 Test operation SW5 Function switch, Model select SW6 Model select SW Manual defrost, detect history record reset, refrigerant address CN5C (Connect to the outdoor noise filter circuit board (SW75V)/ the outdoor power circuit board (SW00/0V)) Only for SW VHA CN5 External signal output Compressor operating signal Abnormal signal SW9 Function switch SWP Pump down CNDM : Input of low-level sound priority mode : Input of external contact point SW7 Demand control setting 48

49 Outdoor controller circuit board PUHZ-SW75VHAR4.UK PUHZ-SW00VHAR4.UK PUHZ-SW0VHAR4.UK PUHZ-SW75VHAR4-BS.UK PUHZ-SW00VHAR4-BS.UK PUHZ-SW0VHAR4-BS.UK PUHZ-SW00YHAR4.UK PUHZ-SW0YHAR4.UK PUHZ-SW00YHAR4-BS.UK PUHZ-SW0YHAR4-BS.UK <CAUTI> TEST POINT is high voltage. CNS (Indoor/outdoor unit connecting wire) CNDC V DC Connect from outdoor power circuit board for VHA, connect from noise filter board for YHA(CNDC) } + VDC (TEST POINT ) (voltage between pins of C5E) : V DC VSP (TEST POINT ) (voltage between pins of C5A, C5B): 0 V DC (when stopped), 6.5 V DC (when operated) 6H High pressure switch VCC (TEST POINT ) (voltage between pins of C8): 5 V DC VFG (TEST POINT 4) (voltage between right pins of PC5C and PC5D, pin and pin 4) CNAC 4: Power supply for outdoor controller circuit board (0 V AC) : Power supply for indoor and outdoor unit connection wire (0 V AC) CN Connect to the outdoor power circuit board (CN) 5: Power circuit board Transmitting signal to the controller circuit board (0 5 V DC) 5: Zero cross signal (0-5V DC) 4: Not used. (SW75V,00/0Y) 8 V DC (SW00/0V) 6 5: 6 V DC 7 5: 6 V DC [5:,,6,7: + ] S4 4-way valve CN4 Transmission to outdoor power circuit board (CN4) TH6 Thermistor <-phase pipe> TH7 Thermistor<Ambient> TH Thermistor <Liquid> TH4 Thermistor <Discharge> 6L Low pressure switch (SW00/0) 6HS High pressure sensor TH4 Thermistor <Comp. surface> LEV-A,-B Linear expansion valve SW4 Test operation SW5 Function switch, Model select SW6 Model select SW Manual defrost, detect history record reset, refrigerant address CN5C (Connect to the outdoor noise filter circuit board (SW75V)/ the outdoor power circuit board (SW00/0V)) Only for SW VHA SW9 Function switch SWP Pump down CNDM : Input of low-level sound priority mode : Input of external contact point SW7 Demand control setting 49

50 Outdoor noise filter circuit board PUHZ-SW75VHA.UK PUHZ-SW75VHA-BS.UK PUHZ-SW75VHAR.UK PUHZ-SW75VHAR-BS.UK EI, E Connect to the earth LI, NI Voltage of 0 V AC is input. (Connect to the terminal block (TB)) CNAC, CNAC 0 V AC (Connect to the outdoor controller circuit board (CNAC)) E Connect to the earth CN5 Primary current (Connect to the outdoor power circuit board (CN5)) CN5C 5C relay signal (Connect to the outdoor controller circuit board (CN5C)) LO, NO Voltage of 0 V AC is output. (Connect ACL) 50

51 Outdoor noise filter circuit board PUHZ-SW00YHA.UK PUHZ-SW0YHA.UK PUHZ-SW00YHA-BS.UK PUHZ-SW0YHA-BS.UK PUHZ-SW00YHAR.UK PUHZ-SW00YHAR.UK PUHZ-SW00YHAR-BS.UK PUHZ-SW00YHAR-BS.UK PUHZ-SW0YHAR.UK PUHZ-SW0YHAR.UK PUHZ-SW0YHAR-BS.UK PUHZ-SW0YHAR-BS.UK LI, LI, LI, NI POWER SUPPLY LI-LI/LI-LI/LI-LI : 400 V AC input LI-NI/LI-NI/LI-NI : 0 V AC input (Connect to the terminal block (TB)) GD Connect to the earth CNAC 0 V AC (Connect to the outdoor controller circuit board (CNAC)) GD Connect to the earth CNDC (Connect to the outdoor controller circuit board (CNDC)) CNL Connect to the ACL4 NO Connect to the outdoor converter circuit board(n-in) LO, LO, LO POWER SUPPLY LO-LO/LO-LO/LO-LO : 400 V AC OUTPUT (Connect to the outdoor converter circuit board (L-IN), ACL and ACL) 5 CNCT Primary current (Connect to the outdoor power circuit board (CN5))

52 Outdoor noise filter circuit board PUHZ-SW00YHAR4.UK PUHZ-SW0YHAR4.UK PUHZ-SW00YHAR4-BS.UK PUHZ-SW0YHAR4-BS.UK LI, LI, LI, NI POWER SUPPLY LI-LI/LI-LI/LI-LI : 400 V AC input LI-NI/LI-NI/LI-NI : 0 V AC input (Connect to the terminal block (TB)) GD Connect to the earth PCB maker trade mark lot number UL mark CNAC, CNAC 0 V AC (Connect to the outdoor controller circuit board (CNAC)) GD Connect to the earth CNDC (Connect to the outdoor controller circuit board (CNDC)) CNL Connect to the ACL4 CNCT Primary current (Connect to the outdoor power circuit board (CN5)) LO, LO, LO POWER SUPPLY LO-LO/LO-LO/LO-LO: 400 V AC OUTPUT (Connect to the outdoor power circuit board (TB-L, L, L)) 5

53 Outdoor power circuit board PUHZ-SW75VHA.UK PUHZ-SW75VHAR.UK PUHZ-SW75VHA-BS.UK PUHZ-SW75VHAR-BS.UK Brief Check of DIP-IPM and DIP-PFC Usually, they are in a state of being short-circuited if they are broken. Measure the resistance in the following points (connectors, etc.). If they are short-circuited, it means that they are broken.. Check of DIP-IPM P - U, P - V, P - W, N - U, N - V, N - W. Check of DIP-PFC P - L, P - N, L - N, N - N Note:The marks L, N, N, N, P, P, U, V and W shown in the diagram are not actually printed on the board. R, S Connect to the ACL 0 V AC U, V, W Connect to the compressor (MC) Voltage among phases: 5 to 80 V AC DIP-PFC LD-LD V DC Connect to the outdoor controller circuit board (CNDC) P N L N N N W V U P LD9 Connect to the earth DIP-IPM CN Connect to the outdoor controller circuit board (CN) 5:Outdoor power circuit board Transmitting signal to the outdoor controller circuit board (0 5 V DC) 5: Zero cross signal (0 5 V DC) 4: Not used 6 5: 6V DC,, 6, 7 : + [ 5 : ] 7 5: 6 V DC CN Thermistor <Heat sink> (TH8) CN4 Connect from the outdoor controller circuit board (CN4) CN5 Primary current detection (Connect to the outdoor noise filter circuit board (CN5)) 5

54 Outdoor power circuit board PUHZ-SW75VHAR4.UK PUHZ-SW75VHAR4-BS.UK Brief Check of DIP-IPM and D.B. Usually, they are in a state of being short-circuited if they are broken. Measure the resistance in the following points (connectors, etc.). If they are short-circuited, it means that they are broken.. Check of DIP-IPM P - U, P - V, P - W, N - U, N - V, N - W. Check of IGBT (Q600) DB + - DB. Check of diode bridge P - L, P - N, N - L, N - N Note: The marks N, N, P, P, U, V, W, L, N, + and shown in the diagram are not actually printed on the board. U, V, W Connect to the compressor (MC) Voltage among phases: 0 80 V AC IGBT (Q600) DIP-IPM CN4 Connect to the outdoor controller circuit board (CN4) CN6 Thermistor (TH8) <Heat sink> CNAC, CNAC Connect to the outdoor controller circuit board (0 V AC) R/L, S/N Voltage of 0 V AC is input. (Connect to the terminal block (TB)) EI, E Connect to the earth U W P V N N N N P + P L L N CNDC V DC Connect to the outdoor controller circuit board (CNDC) Diode bridge (DB, DB) TBL, TBL4 Connect to ACL E4 Connect to the earth CN Connect to the outdoor controller circuit board (CN) 5: Outdoor power circuit board Transmitting signal to the outdoor controller circuit board (0 5 V DC) 5: Zero cross signal (0 5 V DC) 4: 5 V DC,, 6, 7 : + 6 5: 6 V DC [ 5 : ] 7 5: 6 V DC 54

55 Outdoor power circuit board PUHZ-SW00VHA.UK PUHZ-SW00VHAR.UK PUHZ-SW0VHA.UK PUHZ-SW0VHAR.UK PUHZ-SW00VHA-BS.UK PUHZ-SW00VHAR-BS.UK PUHZ-SW0VHA-BS.UK PUHZ-SW0VHAR-BS.UK Brief Check of POWER MODULE Usually, they are in a state of being short-circuited if they are broken. Measure the resistance in the following points (connectors, etc.). If they are short-circuited, it means that they are broken.. Check of POWER MODULE Check of DIODE circuit R - L, S - L, R - N, S - N Check of IGBT circuit L - N Check of INVERTER circuit P - U, P - V, P - W, N - U, N - V, N - W Note: The marks R, S, L, L, P, N, U, V and W shown in the diagram are not actually printed on the board. Power module CN4 Connect to the outdoor controller circuit board (CN4) N Connect to the smoothing capacitor CB CN Connect to the outdoor controller circuit board (CN) 5:Transmitting signal to outdoor controller circuit board (0 5 V DC) 5: Zero cross signal (0 5 V DC) 4: 8 V DC 6 5: 6 V DC 7 5: 6 V DC CN5C 5C driving signal Connect to the outdoor controller circuit board (CN5C) CNDC V DC (+, ) Connect to the outdoor controller circuit board (CNDC) E, E Connect to the earth S R W V U L P N L U/V/W Connect to the compressor (MC) Voltage among phases: 0 80 V AC P Connect to the smoothing capacitor CB + DCL, DCL Connect to DCL EI, E4 Connect to the earth CNAC, CNAC 0 V AC Connect to the outdoor controller circuit board (CNAC) NI, LI Voltage of 0 V AC is input (Connect to the terminal block (TB)) 55

56 Outdoor power circuit board PUHZ-SW00VHAR4.UK PUHZ-SW0VHAR4.UK PUHZ-SW00VHAR4-BS.UK PUHZ-SW0VHAR4-BS.UK Brief Check of POWER MODULE Usually, they are in a state of being short-circuited if they are broken. Measure the resistance in the following points (connectors, etc.). If they are short-circuited, it means that they are broken.. Check of POWER MODULE Check of DIODE circuit R - L, S - L, R - N, S - N Check of IGBT circuit L - N Check of INVERTER circuit P - U, P - V, P - W, N - U, N - V, N - W Note: The marks R, S, L, L, P, N, U, V and W shown in the diagram are not actually printed on the board. Power module CN4 Connect to the outdoor controller circuit board (CN4) CN Connect to the outdoor controller circuit board (CN) 5:Transmitting signal to outdoor controller circuit board (0 5 V DC) 5: Zero cross signal (0 5 V DC) 4: 8 V DC 6 5: 6 V DC 7 5: 6 V DC CN5C 5C driving signal Connect to the outdoor controller circuit board (CN5C) CNDC V DC (+, ) Connect to the outdoor controller circuit board (CNDC) E, E Connect to the earth S R W V U L P N L U/V/W Connect to the compressor (MC) Voltage among phases: 0 80 V AC DCL, DCL Connect to DCL EI, E4 Connect to the earth CNAC, CNAC 0 V AC Connect to the outdoor controller circuit board (CNAC) NI, LI Voltage of 0 V AC is input (Connect to the terminal block (TB)) 56

57 Outdoor power circuit board PUHZ-SW00YHA.UK PUHZ-SW0YHA.UK PUHZ-SW00YHA-BS.UK PUHZ-SW0YHA-BS.UK Brief Check of POWER MODULE Usually, they are in a state of being short-circuited if they are broken. Measure the resistance in the following points (connectors, etc.). If they are short-circuited, it means that they are broken.. Check of DIODE MODULE L - P, L - P, L - P, L - N, L - N, L - N. Check of DIP-IPM P - U, P - V, P - W, N - U, N - V, N - W Note: The marks L, L, L, N, N, P, P, U, V and W shown in the diagram are not actually printed on the board. TB-N Connect to the CK capacitor TB-U, TB-V, TB-W Connect to the compressor (MC) Voltage among phases: V AC Diode module N W V U P DIP-IPM P L L L N TAB connector on X5CA Connect to the RS resistor CN4 Connect to the outdoor controller circuit board (CN4) CN5 Detection of primary current (Connect to the outdoor noise filter circuit board (CNCT)) CN Connect to the outdoor controller circuit board (CN) 5: Power circuit board Transmitting signal to the controller board (0 5 V DC) 5: Zero cross signal (0 5 V DC) 4: Not used 6 5: 6 V DC 7 5: 6V DC [ 5 :,, 6, 7 : + ] CN7 Connect to the outdoor converter circuit board (CN7) CN6 Thermistor <Heat sink> (TH8) 57 TB-L, TB-L, TB-L Connect to the outdoor converter circuit board (L-OU, L-OU, L-OU) 400 V AC

58 Outdoor power circuit board PUHZ-SW00YHAR.UK PUHZ-SW00YHAR.UK PUHZ-SW00YHAR4.UK PUHZ-SW0YHAR.UK PUHZ-SW0YHAR.UK PUHZ-SW0YHAR4.UK PUHZ-SW00YHAR-BS.UK PUHZ-SW00YHAR-BS.UK PUHZ-SW00YHAR4-BS.UK PUHZ-SW0YHAR-BS.UK PUHZ-SW0YHAR-BS.UK PUHZ-SW0YHAR4-BS.UK Brief Check of POWER MODULE Usually, they are in a state of being short-circuited if they are broken. Measure the resistance in the following points (connectors, etc.). If they are short-circuited, it means that they are broken.. Check of DIODE MODULE L - P, L - P, L - P, L - N, L - N, L - N. Check of DIP-IPM P - U, P - V, P - W, N - U, N - V, N - W Note: The marks L, L, L, N, N, P, P, U, V and W shown in the diagram are not actually printed on the board. TB-N Connect to the CK capacitor TB-U, TB-V, TB-W Connect to the compressor (MC) Voltage among phases: V AC Diode module N W V U P DIP-IPM TAB connector on X5CA Connect to the RS resistor P L L L N TB-L, TB-L, TB-L Connect to the outdoor converter circuit board (L-OU, L-OU, L-OU) 400 V AC CN4 Connect to the outdoor controller circuit board (CN4) CN5 Detection of primary current (Connect to the outdoor noise filter circuit board (CNCT)) CN Connect to the outdoor controller circuit board (CN) 5: Power circuit board Transmitting signal to the controller board (0 5 V DC) 5: Zero cross signal (0 5 V DC) 4: Not used 6 5: 6 V DC 7 5: 6 V DC [ 5 :,, 6, 7 : + ] CN7 Connect to the outdoor converter circuit board (CN7) CN6 Thermistor <Heat sink> (TH8) LOUT-LIN Lead connect 58