10SFE · 15SFE · 15SFE-1
Contents
1. 15SFE 15SFE 1 10SFE x10 kcal h x10 kcal h 103 BTU h 103 BTU h 12 3 17 6 44 gt gt E 1 m 60 40 m lt lt a 5 144 36 5 6 2 S S 128 32 lt 112 28 O 4 1 F 104 40 95 35 gt gt 95 35 30 m m 86 30 1 77 25 2 z3 a 68 N gt 77 25 gt 15 20 25 30 C 25 59 68 7 86 F 68 20 15 20 25 30 C WET BULB TEMP 59 68 77 86 F WET BULB TEMP X Control Switch Position IV HI COOL 2 Current Consumption Curve 15SFE 15SFE 1 10SFE 7 10 2 2 O 5 E E gt 8 gt gt gt 2 2 7 O 5 2 O O 1 2 2 5 6 222 212 27 oc oc 2 2 2 5 2 O O 0 a F C a 104 95 W 95 FE 86 30 m 86 30 77 25 m m gt 77 25 68 20 e 20 25 30 85 C O O 68 77 86 95 F 68 20 E BULB TEMP 2 WET BULB TEMP Control Switch Position COOL 19 3 Cool Air TEMPERATURE DIFFERENCE BETWEEN INLET AND OUTLET 15SFE 15SFE 1 C 69 15 57 2 14 55 4 13 H gt ys 53 6 12 61 8 11 lt 50 10 SJ M 482 9 St2. AUXILIARY RELAY TERMINAL BLOCK CAPACITOR FOR COMPRESSOR AUXILIARY RELAY CAPACITOR FOR COMPRESSOR EARTH TERMINAL CAPACITOR FOR COMPRESSOR CAPACITOR FOR TERMINAL BLOCK AR FAN MOTOR zs036g CONTROL BOX FOR MODEL 10SFE CONTROL BOX FOR MODEL 15SFE RESTART AUXILIARY RELAY COMPRESSOR MOTOR RELAY TIME DELAY RELAY FOR COMPRESSOR AUXILIARY RELAY TERMINAL BLOCK CAPACITOR FOR COMPRESSOR CAPACITOR FOR FAN MOTOR 250379 CONTROL BOX FOR MODEL 15SFE 1 Fig 8 5 SYSTEM COMPONENTS AND FUNCTIONS The application of each components for 10SFE 15SFE 15SFE 1 are as follows APPLICATION COMPONENTS 10SFE 15SFE 1 1 2 3 4 5 CAPACITOR FOR COMPRESSOR AND FAN MOTOR AUXILIARY RELAY COMPRESSOR RELAY OVERLOAD RELAY PROTECTOR FOR COMPRESSOR THERMOSTAT ANTI FREEZING 6 FAN MOTOR 7 CONTROL SWITCH 8 DRAIN WARNING SWITCH 9 TEMPERATURE CONTROL ROOM THERMOSTAT 10 RESTART AUXILIARY RELAY 11 TIME DELAY RELAY x O O O OO X OJO OO O O OJO OJOJOJO O O O O O X O O x 5 1 CAPACITOR The capacitor is used to improve the rotary power of the fan motor and the compressor at Rated Voltage Capacitance first The specifications of each capacitor are shown below Capacitor For fan motor 440 For compressor 400 For fan motor 400 For compre
3. Fig 16 Control Switch for 15SFE amp 15SFE 1 SW BE 214 5 6 Position FAN I LOW oH 0 OFF II LOW COOL O O O COOL O O CONTINUTY Fig 17 Control Switch for 10SFE 5 8 CONDENSATE PUMP DRAIN PUMP OPTION A condensate pump is available for three Models This pump can drain the condensate water OUTLET HOSE automatically NO MORE THAN 18 FEET 5 5m MOVINCOOL CONDENSATE 27 PUMP 240164 Fig 18 Layout for Condensate Pump 11 5 11 DRAIN WARNING SWITCH The drain switch cuts off the flow of current to both the compressor motor and the fan motors circuit when the drain water accumulates approx 16 liters in the drain tank At the DRAIN WARNING SWITCH same time it lights the drain warning lamp on DRAIN WARNING the operation panel and stops the operation POWER SOURCE This system adopts a 240V 3A rating micro RELAY switch for this function When drain water accumulates approx 16 liters in the drain tank the drain tank base plate which is supported S at its fulcrum is pushed down the arrow SARE direction as shown in the figure When the drain tank base plate is forced down portion A located at the top of the drain tank base plate turns off contacts 1 2 of the micro switch Since this breaks the auxiliary relay RX circuit the auxiliary relay contacts are turned off to b
4. 13 2 Restart auxiliary relay The restart auxiliary relay is used for sending 1 2 ON signal from the time delay relay to the compressor relay Fig 24 Restart Auxiliary Relay 3 Operation When the control switch is turned to the The Control Switch 1 4 COOL position current flows first to the time 21 delay circuit and after 75 seconds flows 50 hs through the relay coil Then two contacts are moved by the electromagnetic force 1357 0000 2714 __ RATED __3 Terminals 5 ang 9 and 8 and 12 are VOLTAGE conductive allowing current to flow to the 1 compressor motor by activating the restart relay and compressor relay 75 SEC LATER 4 75 15 seconds 5 8 9 12 dM gt 13000014 290089 Fig 25 Restart Auxiliary Relay Operation 14 6 SPECIFICATIONS 6 1 EXTERIOR DIMENSIONS MODEL 10SFE 293689 unit mm Fig 26 Exterior Dimensions of MODEL 10SFE 15 250400 unit MODEL 15SFE a 6 1 X000 XX X VYVY ee PR OOO SS KEN gt gt 2555 RZ 2222 ODO AYO ROZR D a 0000009060 A KKK LR lt lt III XS LO ROOK KK DADA
5. 20 C 68 F 50 RH RANGE 293259 Fig 32 Environmental Conditions TEMPERATURE OVER 40 C 104F NG HUMIDITY OVER 50 243260 Fig 33 DIRT AND CLOGGING SWNS W W AAU VX NM y m hit zq268g Fig 34 28 WASHING PROCEDURE 1 Washing Method Wash it with a high pressure washer Use a neutral detergent if the fins are dirty enough to require it Spine fin or plate fin washing effective conditions 1 Spray pressure Approx 60 kgf cm 20 to 80 kgf cm 2 Spray volume Approx 8 min 6 to 9 min 3 Nozzles Fan shaped pattern place at right angle with the heat exchanger surface 4 Distance The distance between the nozzles and the spine fin is 0 3 to 0 5m 5 Detergent Use a 3 concentration neutral detergent 6 Cleaning procedure Wash once simply with detergent 2 Then wash with water 3 Dry Do not use compressed air 7 Spray pattern Spray pattern Usage results Spray type The high pressure is convenient for washing Y outer plates and plate fin 269 Such pressure can bend spine fins Mist type PEN Used for cleaning the spine fins VUL x Place at right angle with the heat exchanger 202709 Surface Be careful with the spine fins They are easily crushed cleaning with compressed air crushes the fins never use it 29 _ 2 Cautions and Ch
6. 79 02 3 9 0 1 5 Outlet 2 9125 771 1 7 1 5 dia 00 1 0 3 0 5 07 09 AE N Decreasing ratio 1 w sa 0 0 3 0 5 0 7 v v0 0 0 3 05 07 10 Model 70 of outlet 105 8 5m s 9 C 1 15SFE 15SFE 1 9m s 9 C 2 At the rating condition vo Average velocity at outlet v Average velocify at point X R Ato Average temperature difference at outlet At Average temperature difference at point X R 21 MEMO 23 1 TROUBLESHOOTING If trouble occurs it is extremely important to first get a concrete grasp the nature of the problem This will facilitate accurate and speedy troubleshooting To do so carefully confirm the nature of the trouble with the customer to begin troubleshooting classify the customer complaints as follows Poor cooling Unit does not start operate Overflow of drain water Abnormal noise or vibrations Others 1 1 POOR COOLING Complaints about insufficient cooling include those where the problem lies with the cooling unit and problems involving matters other than the cooling unit that is the environment in which the unit is used If the cooling unit is malfunctioning there are cases where this has an electrical cause such as the fan motor and compressor and cases where the cause is mechanical such as the control switch or the blower motor 1 There is a possibility of insuf
7. conductivity of the brazed fitting The most important point in flame brazing is to bring the whole brazed fitting to a proper brazing temperature It is also important to take care not to cause overflow of brazing filler metal oxidization of brazing filler metal or deterioration due to the overheating of flux 1 Proper Fitting and its Clearance In general the strength of brazing filler metal is lower than that of the base metal So the shape and clearance of the brazed fitting is CLEARANCE very important 5 0 025 0 075 As for the shape of the brazed fitting it is necessary to maximize its adhesive area The clearance of the brazed fitting must be minimized to pour brazing filler metal into it FROM THE PIPE FITTING WITH TUBING TOOL by using the capillary attraction 292959 9 56 Brazed Fitting and Its Clearance 42 2 Cleaning of Brazing Filler Metal and Pipe When a joint has been removed brazing filler metal may be found sticking to the inside and outside of the pipe Brazing filler metal may also be compounded with oxygen in the air to form oxide film Fats and oils may stick to the pipe In such conditions complete brazing cannot be made It is necessary to eliminate the brazing filler metal completely by using sand paper or a solvent such as trichlene 3 Use of Dry Nitrogen Gas During brazing the inside of the pipe undergoes an oxidative reaction due to the brazing flame Conduct
8. 2 3 4 5 6 7 8 9 1 CONSTRUCTION COOLING AIR Spot cooling system MovinCool have the 555 following features 1 Compact Design The innovative design of spot cooling systems has resulted one compact design replacing two separate units 2 Easy Transportation and Installation With the whole cooling system built into one compact unit the spot cooling system requires no pipe work and can be transported and installed easily ns 3 Energy Conservation TO EVAPORATOR 243119 HOT OUTLET FILTER FILTER INTAKE AIR TO CONDENSER The spot cooling system is economical Fig 1 Air Flow of Spot Cooling System Because it cools only the area or object needed to be cooled 2 MODEL AND SPECIFICATIONS MODEL 15SFE 1 1 With Temperature Control No mark Without Temperature Control European Spec Floor Type Shows Thermal Allowable Load 5 40 50 45 50 Compressor Output 10 1HP 15 1 5HP refrigeration cycle of 15SFE and 15SFE 1 shown below Model 10SFE is almost same refrigeration cycle REFRIGERANT CYCLE CONDENSER lt E EVAPORATOR CESLA 225522 IZA U 1 A SS 222221 NS CAPILLARY TUBE 22 SSN WAGES RE 121222 fN es A Hf COMPRESSOR LINE 22 CN 2 SA DESUPERHEATER
9. 70 Wiring Diagram for MODEL 15SFE 83 9 3 155 1 MODEL 15SFE 1 al 2212 Compressor zs049g SYMBOL PART AP Attachment Plug TB Terminal Block Control Switch Fan Motor Compressor Motor Capacitor for Fan Capacitor for Compressor Overload Relay for Compressor Internal Overload Relay of Fan Motor Compressor Motor Relay Auxiliary Relay Restart Auxiliary Relay for Compressor Time Delay Relay Drain Warning Switch Anti freezing Thermostat Room Thermostat Short circuit Plate u mul AP Earth ON Copper Tube Fig 71 Wiring Diagram for MODEL 15SFE 1 84 MODEL 155 1 AC230V 50 2 UL AP zs050g SYMBOL PART Attachment Plug Terminal Block Control Switch Fan Motor Compressor Motor Capacitor for Fan Capacitor for Compressor Overload Relay for Compressor Internal Overload Relay of Fan Motor Compressor Motor Relay Auxiliary Relay Restart Auxiliary Relay for Compressor Time Delay Relay Drain Warning Switch Anti freezing Thermostat Room Thermostat Short circuit Plate Fig 72 Wiring Diagram for MODEL 15SFE 1 MEMO DENSO CORPORATION Kariya Aichi Japan Distributed by DENSO Europe B V Weesp The Netherlands First Issue December 1997 Publication No IZZ
10. ASSY 15SFE 484560 0731 0 0064 ILLUSTRATION DENSO MANUFACTURER MODIFICA NUMBER NUMBER NUMBER DATE 484560 0731 SWITCH ASSY 484390 0720 COVER SUB ASSY 484901 3990 PACKING 91050 04061 SCREW CROSSRECESS PAN 484504 0020 THERMOSTAT 484922 0080 CAP 484930 4730 WIRE ASSY M4 L6 FOR ANTIFREEZING OD M 68 COMPRESSOR ASSY 15SFE 484650 1200 OM0046 ILLUSTRATION DENSO MANUFACTURER MODIFICA COMPRESSOR ASSY 1 5 PLATE RUBBER 1 6 PLATE RUBBER 1 7 RELAY OVERLOAD 1 8 WIRE ASSY 1 9 1 10 CAP 11 BRACKET 1 12 949056 1520 NUT 138 4g4321 0180 BRACKET 2 14 90910 04301 SCREW BINDING TAPPING 2 M4 L30 15 480841 0010 CLIP 1 69 MEMO 70 AIRCONDITIONER ASSY 15SFE 1 484000 2070 0065 ILLUSTRATION NUMBER BE 484100 1680 UNIT ASSY 15SFE 1 8 NS N RAS 4 e OM0086 pe UNIT ASSY ILLUSTRATION NUMBER 1 10 UNIT ASSY FRAME SUB ASSY ROLLER ROLLER BOLT WWASHER WASHER TOOTHED WASHER PLATE SCREW CROSSRECESS PAN GROMMET GROMMET NUT HOLDER WIRE ASSY FRAME ASSY CASING SCREW W WASHER NUT HEXAGON GROMMET WASHER PLATE GROMMET SCREW WWASHER FRAME SUB ASSY BRACKET SOCKET SCREW CROSSRECESS COUNTERSUNK SWITCH SCREW W WASHER SPRING TENSION COIL COMPR
11. DISASSEMBLE 10SFE MODEL EVAPORATOR TOP COVER Dons AIR FILTER TOP PANEL CONDENSER REAR PANEL BLOWER ASSY AIR FILTER FRONT PANEL DRAIN PAN 2228 PE BULKHEAD CONTROL BOX LEFT SIDE PANEL DRAIN TANK RIGHT SIDE PANEL CASTER TANK REST 250424 Fig 35 Disassembly of MODEL 10SFE 31 155 MODEL THERMOSTAT DRAIN WARNING LAMP CONTROL SWITCH 4 29 AIR FILTER FRONT PANEL RIGHT SIDE PANEL AIR FILTER BLOWER HOUSING a BLOWER CONDENSER BLOWER EVAPORATOR CONDENSER L DRAIN PAN LEFT SIDE PANEL REAR PANEL DRAIN SWITCH L q SERVICE PANEL DRAIN TANK DRAIN TANK BRACKET i E n gt N RE x e CASTER 2 7 CASTER POWER CORD 250430 Fig 36 Disassembly of MODEL 15SFE 32 _ 15SFE 1 MODEL ROOM ANTI FREEZING THERMOSTAT THERMOSTAT UPPER DRAIN SWITCH PANEL WARNING LAMP AIR FILTER RIGHT SIDE PANEL BLOWER HOUSING I CONDENSER BLOWER HOUSING 2 EVAPORATOR 27 LEFT SIDE PANEL REAR PANEL Q SWITCH o DRAIN TANK 42 BRACKET SERVICE PANEL DRAIN a TANK CASTER CASTER POWER CORD lt 250449 Fig 37 Disassembly of MODEL 15SFE 1 3 1 REMOVAL OUT
12. OFF COOL COOL 91 E 2 RX 12 11 15 16 22 2 DS RL 2 1 RD zq348g SYMBOL PART Attachment Plug Terminal Block Control Switch Fan Motor Compressor Motor Capacitor for Fan Capacitor for Compressor Overload Relay for Compressor Internal Overload Relay of Fan Motor Auxiliary Rela Drain Warning Switch Anti freezing Thermostat Drain Warning Lamp Fig 68 Wiring Diagram for MODEL 10SFE 81 9 2 15SFE MODEL MODEL 15SFE E EEEE 25 gt ic L 1 Fan Motor Earth On Copper Tube Faston 187 terminal Faston 250 terminal O Screw zs047g SYMBOL PART AP Attachment Plug TB Terminal Block CS Control Switch Fan Motor MC Compressor Motor CF Capacitor for Fan CC Capacitor for Compressor OLC Overload Relay for Compressor RX Auxiliary Relay DS Drain Warning Switch THS Anty freezing Thermostat Fig 69 Wiring Diagram for MODEL 15SFE 8 _ MODEL 15SFE AC230V 1ph 50HZ zs048g SYMBOL PART AP Attachment Plug TB Terminal Block Control Switch Fan Motor Compressor Motor Capacitor for Fan Capacitor for Compressor Overload Relay for Compressor Internal Overload Relay of Fan Motor Auxiliary Relay Drain Warning Switch Anty freezing Thermostat Fig
13. Slowly open the low pressure valve while looking at the scale reading When the scale reads the specified amount immediately close the low pressure valve Stop the unit ACAUTION 1 The amount of refrigerant has a great effect on the cooling capacity of the cooler Charge to the correct amount by always looking at the scale graduation 2 When charging the refrigerant by above procedure written in the note do not open the high pressure valve while operating the unit 4 Remove the Manifold Gauge D Pinch off the pinch off tube with a pinch off tool PINCH OFF TOOL 2 Remove the manifold gauge and the process TO GAUGE tube fitting Crush the end of the pinch off PINCH OFF TUBE MANIFOLD tube a j 3 Braze the end of the pinch off tube Make sure that a gas leak is not detected EHE at the crushed end of the pinch off tube CHARGING HOSE YI PROCESS TUBE FITTING 293079 9 66 Removal of Manifold Gauge 48 8 PARTS CATALOG AIRCONDITIONER ASSY 10SFE 484000 2050 ILLUSTRATION NUMBER AIRCONDITIONER ASSY UNIT ASSY 49 UNIT ASSY 10SFE 484100 1690 484100 1690 DENSO MANUFACTURER MODIFICA NUMBER DESCRIPTION UNIT ASSY ILLUSTRATION NUMBER REMARKS 1 4 484100 1690 484300 0730 484310 1540 484702 0240 484702 0250 91510 08141 90051 06120 90201 06400 484921 0060
14. X NUT BLOWER HOUSING SHROUD 243799 Tightening Torque 45 5kgf cm 4 4 0 5 3 3 0 4 ft Ibf BOLT 120 20 11 8 2 0 8 8 1 4 ft Ibf 15SFE 15SFE 1 QNO 4 B gt LOWER HOUSING EVAPORATOR EVAPORATOR FAN FAN MOTOR PARTITION PLATE MOTOR BRACKET CONDENSER BLOWER HOUSING CONDENSER 293809 Tightening Torque BOLT BOLT B 150 30 14 7 2 9 10 8 2 2 ft Ibf Fig 41 Removal of Blower Assembly 35 4 INSPECTION OF THE ELECTRICAL PARTS 1 Control Switch Check the continuity between the following terminals at each position of the control switch 15SFE 15SFE 1 Switch position I COOL 1 1 Continuity Continuity No Continuity Terminals zs046g Fig 42 Inspection of Control Switch for 15SFE 15SFE 1 10SFE Switch position FAN T LOW FAN O OFF COOL No 41 NO Continuity Continuity Continuity No No Continuity Continuity N Continuity Continuity Continuity No No No Continuity Continuity Continuity No No No Continuity Continuity Continuity Continuity Continuity If there is no continuity replace the control switch 243819 Fig 43 Inspection of control switch for 10SFE 36 2 Fan Motor Condenser amp Compressor Measure the resistance betwe
15. rust and corrosion always dry the part where water can build up easily in particular for indoor only models Also wipe away any water in the fan casing because of the danger of water containing detergent being blown out during operations checking Check the heat exchangers fins for crushing and clogging Make sure there is no water left in any electrical control part before switching on the power In particular water easily builds up in the electrode sections of the condensers Run the machine and check for abnormal noises Measure the running current and cool air temperature after drying Cautions for electrical control parts during washing 1 Models with bolts and nuts at the top 1 Bolts Hanging models are sealed of the compressor in particular floor del so that rain can not get in models but floor models are not Use rubber tape or the like to keep sealed water from reaching the terminal section COMPRESSOR through gaps at the thread section CONTROLLER assy TAPE Controller Assy Watch out for water in the indentation at the top of the condenser where water remains easily CONDENSER WATER FLOW water from getting in 3 Cover the drain warning switch and the anti freezing thermostat with a plastic bag and rubber tape 30 Tape the control box with the top wrap overlaying the wrap below to prevent 3
16. with dusts clean it using a vacuum cleaner and then rinse it with cold or lukewarm water If the air filter is extremely dirty use a neutral detergent to wash it 2 2 INSPECT THE COOLING CAPACITY Measure the difference in temperature between the intake air temperature and the outlet air temperature If the difference is out of the range given in the graph page 18 inspect the related parts 242644 242654 Fig 30 Washing Air Filter COOLING AIR INTAKE AIR TO EVAPORATOR 243249 Fig 31 Inspection of Cooling Capacity 27 2 3 CHECK THE ENVIRONMENTAL CONDITIONS The temperature range of each model is as follows 40 C 104 F 50 RH MAX 20 C 68 F 50 RH MIN 35 C 95 F 60 20 C 68 F 50 RH MIN RH Relative humidity If the unit operated at a higher conditions than above change the location of installation If the unit is used in an area where this condition temperature and humidity range is exceeded the protection device may activate For example the unit might stop running or the compressor might not operate correctly 2 4 INSPECT THE HEAT EXCHANGERS Check the evaporator and the condenser for dirt and clogging If they are dirty or clogged wash them with high pressure washer 40 C 104 F 50 RH 15SFE 15SFE 1 35 95 F 60 RH 10SFE OPERATING TEMPERATURE
17. 484650 1220 94901 1 5330 90190 08651 484310 1681 949006 3130 484310 1320 484917 0200 484430 0171 484600 1300 484926 0190 949001 1570 484600 0710 484200 0430 484410 3980 484500 1580 484901 4700 480841 0010 481951 0020 481902 0030 484311 1710 484410 3990 484410 4000 484410 4860 949006 5850 484401 0590 484401 0600 484731 0052 484310 1472 484927 0510 484390 0520 949171 3050 M8 L14 M6 L12 FOR EARTH FOR EARTH SCREW CROSSRECESS PAN WASHER PLATE SPACER COMPRESSOR ASSY WASHER STEEL PLATE NUT HEXAGON FRAME SUB ASSY SCREW FRAME SUB ASSY CLIP PANASSY DRAIN SEE P 60 O G W 00 DO Jn M4 L10 HR 13 FOR EVA HR 13 FOR CON SPRING TENSION COIL SWITCH ASSY SWITCH a d MN m 51 UNIT ASSY ILLUSTRATION NUMBER 48431 1 0870 91310 03161 44410 2271 484331 4710 91051 04100 484930 4221 484926 0450 484919 0070 484311 1320 484927 0660 484311 1980 484800 0440 DENSO MANUFACTURER NUMBER NUMBER PLATE SCREW W WASHER PANEL ASSY STAY SCREW CROSSRECESS PAN WIRE ASSY GROMMET NUT HOLDER PLATE HOLDER PLATE PIPE ASSY 2152 _ 484100 1690 MODIFICA DESCRIPTION REMAR
18. AYAK M BOX SS KX KKK KRY OK ANN OOK KAA ERROR ee l A mr 00 20000000000000000000 000000000000000000000 000000000000000000000 000000000000000000000 000000000000000000000 GUGODOOOOOdOODUODOODO 16 Fig 27 Exterior Dimensions of MODEL 15SFE MODEL 15SFE 1 N 04 un A MA 7 QU 00 AA Y y i Y Q 0 X Q Y M N w y 0 N 7 N Q Q y 0 0 DU Ay x Oy xA Q X Y U Y 0 Ny KO 0 175 C MOVIN COOL 0000000000 00000000 250410 t uni Fig 28 Exterior Dimensions of MODEL 15SFE 1 17 6 2 SPECIFICATIONS 10SFE 15SFE 15SFE 1 Rating Condition Features Power frequency Line Voltage Power consumption Current consumption Power factor Starting current Power wiring Cooling Unit Cooling capability kcal h Btu h Cooling system Blower Type of fan Air volume m h Motor output w Compressor Type Output Refrigerant kw Packed amount of refrigerant kg 1bs Saftey Device Compressor overload relay Fan motor protector Drai
19. BS 03 1997 DENSO CORPORATION All rights reserved This book may not be reproduced or copied in whole or inpart without the witten permission of the publisher MOVINCOOL a registered trademark of DENSO CORPORATION Japan 9712 D 130 Printed in Japan DENSO CORPORATION IZZBS 03
20. CLOSED RED HOSE y PROCESS TUBE FITTING HIGH PRESSURE SIDE TUBE gt LOW PRESSURE y SIDE TUBE AT A STOP zq300g Fig 61 Connection of Manifold Gauge Valve Setting Low Pressure Gauge LO HI LO HI GAUGE Open Open Closed Closed 750 mmHg or larger HIGH PRESSURE GAUGE VALVE 3 HIGH PRESSURE HIGH PRESSURE SIDE TUBE IN OPERATION Fig 62 Evacuation 46 4 If the reading is not more than 750 mmHg 99 98 kPa 29 53 in Hg in vacuum or the gauge pointer on the low pressure gauge side returns to zero there is a leak somewhere in the cycle Locate the joints that are leaking and re braze them Continue evacuating the air in the cycle until the low pressure gauge indicates a vacuum of 750 mmHg 99 98 kPa 29 53 in Hg Close both the high and low pressure hand valves and stop the vacuum pump then leave the cycle in this condition for five minutes or longer and check that there is no change in the gauge reading When the gauge reading changes there is a leakage in the refrigerant cycle case inspect the refrigerant cycle and repair the leakage part In this 3 Charge Refrigerant If the cycle is evacuated in step 3 f remove the charging hose green from the vacuum pump connect it to the refrigerant cylinder and purge air from the charging hose Place the refrigerant cylinder on a scale weight capaci
21. DENSO 5 exocce _ _ AS y lt CAP C UP Biz SPOT COOLING SYSTEMS SFE S5SEE ASSEE i FOREWORD This manual has been published to service the MovinCool 10SFE 15SFE and 15SFE 1 The purpose of this manual is making up for the previous manual GMZR 03A and GMZR 06 modifying specification Please use this service manual in servicing maintenance inspection repair etc the unit TABLE OF CONTENTS CONSTRUCTION amp OPERATION CONSTRUCTION te teen de ete bi Eo net MODEL AND 8 4 4 22222221 245 CONTROL BOX RO SYSTEM COMPONENTS AND 8 SPECIFICATIONS he te Ge D Ret ue en TROUBLESHOOTING t Sad en ee RREINSPEGTION ertt ee ooi Peleo odi ds DISASSEMBLE ee INSPECTION OF THE ELECTRICAL INSPECTION OF THE REFRIGERATION CYCLE REPAIR OF REFRIGERATION 2 4 22 EVACUATING AND CHARGING seen PARTS CATALOG na ee a WIRING DIAGRAM awa eure is indi 1
22. ER PANELS 1 Remove the following parts 1 Air filter 2 Cooling air duct 3 Drain tank 4 Front panel 5 Left side panel refer to Fig 39 6 Service panel refer to Fig 39 gt gt gt SOC 2 Remove the three lead wires of the power wire from the control box Loosen the two screws fixing the conduit and disconnect the power cord COOLING AIR DUCT FRONT PANEL DRAIN TANK AIR FILTER 293309 Fig 38 Removal Panels for 15SFE 1 LEFT SIDE PANEL POWER CORD CONTROL BOX SERVICE PANEL 250450 Fig 39 Removal of Power Wire 3 2 REMOVAL OF ELECTRICAL PARTS 1 Remove the electrical parts in the control box AUXILIARY RELAY gt mock AUXILIARY ASS 5 2274 222 me MSZ AUXILIARY lt e 5 M 9 TERMINAL BLOCK v D m e 2 77 ABRAS 7 1 CAPACITOR FOR COMPRESSOR EARTH TERMINAL TERMINAL BLOCK 243779 CONTROL BOX FOR MODEL 10SFE CONTROL BOX FOR MODEL 15SFE CAPACITOR FOR Qi N CAPACITOR FOR COMPRESSOR FAN MOTOR CAPACITOR FOR ZA FAN MOTOR 250519 250529 CONTROL BOX FOR MODEL 15SFE 1 Fig 40 Control Boxs for Models 10SFE 15SFE and 15SFE 1 34 3 3 REMOVAL BLOWER ASSEMBLY UNTI FREEZING THERMOSTAT OO 10SFE PARTITION PLATE
23. ESSOR ASSY ACCESSORY KIT SERVICE CORE ASSY PAN ASSY DRAIN SCREW CORE ASSY STAY SUB ASSY PIPE ASSY PIPE ASSY BLOWER ASSY NUT FLANGE CASING NUT FAN SWITCH ASSY 484100 1680 484310 1300 484702 0240 484702 0250 91510 08141 949016 0120 90201 06400 90051 06120 484926 0450 91370 06161 90160 06051 484926 0120 90200 06711 949321 3000 91310 03161 949171 2090 484650 1200 481799 0170 484200 0720 92150 06061 484261 0070 949056 1430 484221 0122 484560 0741 78 DENSO MANUFACTURER MODIFICA NUMBER NUMBER DESORIRTION 484100 1680 REMARKS FOR EARTH M6 L12 POWER CORD a m m m Pp m M fo fa M m 4 m DO DO M4 L10 EVA WICAPILLARY M6 W WASHER a a W o Wo SEE P 78 UNIT 55 ILLUSTRATION NUMBER 30 31 SBREBR 37 39 40 55552253 49 50 51 57 58 1 59 60 1 60 2 0256 100 484100 1680 DENSO MANUFACTURER MODIFICA NUMBER NUMBER m TION DATE REMARKS 484500 1740 484311 1710 91051 04100 481902 0020 484927 0151 949006 6140 473459 0370 484927 0160 484901 3150 480841 0010 48431 1 0870 48431 1 1320 484927 0660 484901 4700 949001 1570 472818 0030 91370 04101 CONTROLLER ASSY PLATE SC
24. GROMMET NUT HOLDER WIRE ASSY FRAME ASSY CASING SCREW W WASHER NUT HEXAGON GROMMET WASHER PLATE GROMMET SCREW W WASHER FRAME SUB ASSY FOR EARTH M6 L12 POWER CORD SCREW CROSSRECESS COUNTERSUNK SWITCH SCREW W WASHER SPRING TENSION COIL COMPRESSOR ASSY ACCESSORY KIT SERVICE CORE ASSY PAN ASSY DRAIN SCREW CORE ASSY STAY SUB ASSY PIPE ASSY PIPE ASSY BLOWER ASSY NUT FLANGE CASING NUT m a N R M a Pp Pp Q a 4 DN DO 4 10 EVA W CAPILLARY M6 W WASHER a W SWITCH ASSY SEE P 68 63 UNIT ASSY INSPAC ILLUSTRATION NUMBER 30 31 502566 39 40 55525535 484500 1730 484311 1710 91051 04100 481902 0020 484927 0151 949006 6140 473459 0370 484927 0160 481902 0030 484340 0920 949350 3030 484901 3150 480841 0010 484311 0870 484311 1320 484927 0660 484901 4700 481951 0020 48491 0560 949321 3000 484410 3931 949001 1570 146690 1920 949007 3600 91060 04101 484450 1980 484410 3941 484410 4820 484410 2590 484401 0230 484411 2510 484400 0060 484300 0260 484401 0230 484731 0021 949040 6150 484930 0910 481902 0080 484800 0440 DENSO MANUFACTURER MODIFICA NUMBER NUMBER DESCRIPTION on TION DATE 484100 1660 REMA
25. I 2 SE 197 226 ACCUMULATOR FLOW OF REFRIGERANT ACCUMULATOR DESUPER HEATER CAPILLARY TUBE EVAPORATOR oo PRESSOR 293129 Except 10SFE Model Fig 2 Refrigeration Cycle of Model 15SFE 8 15SFE 1 SSE 2 1 COMPRESSOR The compressor used is a hermetic rotary type The compressor and the compressor motor are in one casing 1 Construction The construction of the rotary type compressor is divided into two mechanisms that are the drive mechanism and compression mechanism When the rotor shaft of the motor turns the roller of the compressor rotates to absorb and compress the refrigerant The main parts are the rotor drive mechanism cylinder roller and the lubricator NDENSER gt gt FROM EVAPORATOR TERMINAL Z ACCUMULATOR y STATOR 2 SS ROTOR CYLINDER VANE ROLLER DISCHARGE VALVE OIL LUBRICATOR 203130 Fig 3 Construction of Hermetic Rotary Compressor 2 Compressor Motor The compressor motor is a single phase motor and is built in the compressor 2 2 CONDENSER condenser of model 15SFE 8 15SFE 1 are heat exchanger using spain fins and tubes The condenser of Model 10SFE is a heat exchanger using plate fins and tubes The condenser is used for the purpose of cooling and robbing the heat from the refrigerant gas which has been compressed by the compressor into high temperature high p
26. Intake Air Temperature is Higher than Setting Temperature The contact plate is pressed down onto the bellows by spring force When the intake air temperature is higher than setting temperature internal pressure forces the bellows up therefore raising the contact plate and consequently C contacts with L Compressor is ON 2 When the Intake Air Temperature is Lower than Setting Temperature The internal pressure of the bellows thus the contact plate moves down by spring force and C contacts with H Compressor is OFF 5 13 COMPRESSOR OPERATION DELAY CIRCUIT 15SFE 1 ONLY A time delay relay for the compressor and circuit has been added to the electrical system to prevent a heavy load from being applied on the compressor motor when restarting the system This is due to the difference in pressure between the high and low pressure sides of the system High pressure remains after stopping operation thus a heavy load is applied to the compressor motor when restarting 1 Time delay Relay The time delay relay consists of a relay coil and contacts and a time delay circuit omitted from the figure below CONTACT L _ C OFF Fig 21 Thermostat Operation 1 DIAL e H CONTACT PLATE BELLOWS CONTACT CONTACT CONTACT L CH OFF Fig 22 Thermostat Operation 2 139 51 e EN ELMAR dE 14 1284 VOLTAGE zq366g Fig 23 Time Delay Relay
27. KS M3 L16 4110 CHARGING MEMO BLOWER ASSY 105 484200 0430 ILLUSTRATION NUMBER BLOWER ASSY FRAME SUB ASSY GROMMET GROMMET MOTOR SCREW CROSSRECESS PAN FAN BOLT HEXAGON CASING SCREW FAN ASSY NUT STAY FRAME CLAMP BRACKET SUB ASSY THERMOSTAT WIRE ASSY 54 _ DJ p NM ob OM0039 REMARKS 10SFE BLOWER ASSY ILLUSTRATION NUMBER 484200 0430 DENSO MANUFACTURER MODIFICA NUMBER NUMBER DESCRIPTION omron pare BRACKET CAP WASHER PLATE SK GROMMET 55 REMARKS 13 4 14 15 PANEL ASSY 105 484410 3980 OM0043 ILLUSTRATION DENSO MANUFACTURER MODIFICA NUMBER NUMBER NUMBER DATE PANEL 55 PANEL SUB ASSY 2 SWITCH ASSY 241 BRACKET 22 SWITCH 23 SCREW M4 L6 24 WIRE ASSY 3 SCREW M4 L10 4 KNOB 6 COVER 7 LAMP CLIP B6 MEMO 57 CONTROLLER ASSY 10SFE ILLUSTRATION NUMBER o NO 03 CONTROLLER ASSY BOX SUB ASSY CONDENSER HOLDER SCREW CONDENSER PACKING SCREW TERMINAL PLATE ORNAMENT WIRE ASSY PACKING WIRE ASSY CLAMP GROMMET RELAY HOLDER GROMMET 58 484500 1580 1 1 1 1 4 1 1 2 1 1 1 1 1 2 1 1 1 1 OMO0061 REMARKS 10SFE 15 F 400V M4 L10 5 LF 440V M4 L18 CONT
28. M 464 8 EN 44 6 7 40 50 60 70 RELATIVE HUMIDITY Temperature Difference Curve 10SFE TEMPERATURE DIFFERENCE BETWEEN INLET AND OUTLET 40 50 60 70 RELATIVE HUMIDITY Control Switch Position IV HI COOL 4 External Static Pressure And Air Volume Curve mmAq 20 4 15 3 10 2 EXT STATIC PRESS G 200 150 100 50 15SFE 15SFE 1 200 400 600 800 AIR VOLUME FLOW 1000 10SFE mmAq Pa 15 3 150 tc a N O N 10 2 100 x 4 USAGE RANGE 00 y AM 5 5 5 1 50 Y N AN I LOW FAN N Y 0 Lo N 0 100 200 300 400 m h AIR VOLUME FLOW 20 m h 5 Cool Air Velocity And Temperature Difference Decreasing Diagram Radial distance R Average Velocity Horizontal distance X Average Temperature Difference 19 7 39 4 59 inch inch m 0 5 1 0 15 m 19 7 0 5 15 7 0 4 11 8 03 mo
29. ONLY Start the compressor 75 seconds after it is set to I COOL Coil resistance of fan 5 1 or open circuit Replace motor motor 00 or Q Fan motor Open circuit or poor Replace compressor relay contact of IOLF Capacitor for fan motor Capacitor malfunction Replace capacitor Operation switch Grounding failure Exchange Air volume normal Insufficient air volume 24 Checking Area Cause Counter measure Insufficient air volume Insufficient air volume 1 Air filter Clogged air filter Clean air filter 2 Evaporator Clogged evaporator or crushed fins Repair and clean fins or replace it 3 Duct connection state Improper connection Repair duct connection 4 Fan motor 1 2 UNIT DOES NOT START OPERATE Poor rotation Replace motor Reverse rotation Change any 2 wires out of 3 Power source In this case there is a possibility of safety devise operating due to the clogged air filter So be sure to first clean the air filter and then start up again to confirm if the problem lies with the air filter Phenomenon Checking Area Cause Counter measure Does not operate at all Power indicator lamp turns off Voltage Power failure Repair power indicator Earth leakage breaker Earth leakage or defective ea
30. REW CROSSRECESS PAN STAY SUB ASSY CLIP CORD SCREW TAPPING CLIP CORD SCREW W WASHER SCREW W WASHER SCREW CROSSRECESS COUNTERSUNK PANEL ASSY PANEL ASSY PANEL ASSY FILTER PANEL FILTER ASSY FRAME ASSY FILTER TANK PANEL SUB ASSY BOLT HEXAGON KNOB WIRE ASSY 74 SIN NS mA TE ih a AAN M4 L10 FOR EARTH L185 D4 L10 M4 L10 4 1 14 HR 13 1 M8 L18 5 BLOWER ASSY 155 1 484200 0720 0045 ILLUSTRATION NUMBER REMARKS DENSO MANUFACTURER MODIFICA 484200 0720 BLOWER ASSY 484021 0112 484330 0340 STAY ASSY 484211 1010 MOTOR 484930 0900 WIRE ASSY 92150 06061 NUT FLANGE 480841 0010 CLIP 949040 6150 BOLT HEXAGON M6 1100 M8 L18 5 C n N p ol oo 75 CONTROLLER ASSY 155 1 484500 1740 0 0058 ILLUSTRATION NUMBER 0 CONTROLLER ASSY 1 BOX SUB ASSY 1 2 CONDENSER 1 25uF 3 CONDENSER 1 10uF 4 RELAY 1 RRX 5 RELAY 1 MCC 6 RELAY 1 RX 7 HOLDER 2 8 92100 03081 SCREW FLANGE 1 9 484503 0250 TERMINAL 1 10 484930 2960 WIRE ASSY 1 11 949006 3280 SCREW 2 12 949006 3250 SCREW 9 13 91051 04100 SCREW CROSSRECESS PAN 1 14 949321 3010 GROMMET 3 15 949321 3000 GROMMET 2 16 484003 0450 PLATE ORNAMENT i 17 484930 2980 WIRE ASSY 1 76 CON
31. RKS CONTROLLER ASSY SEE P 66 PLATE SCREW CROSSRECESS PAN CLAMP HOLDER SCREW CLAMP HOLDER CLAMP STAY SUB ASSY CLIP CORD PACKING CLIP PLATE M4 L10 FOR EARTH CLIP COVER GROMMET PANEL ASSY SCREW TAPPING CLAMP SCREW W WASHER SCREW CROSSRECESS COUNTERSUNK PANEL SUB ASSY PANEL ASSY PANEL ASSY PANEL ASSY FILTER PANEL FILTER ASSY FRAME ASSY FILTER TANK BOLT HEXAGON WIRE ASSY CLAMP PIPE ASSY D4 L10 M4 L10 MA L14 110 WIFILTER HR 13 41 REAR HR 13 M8 L18 5 64 BLOWER ASSY 155 484200 0710 ILLUSTRATION NUMBER REMARKS 158 BLOWER 55 STAY ASSY MOTOR WIRE ASSY NUT FLANGE CLIP BOLT HEXAGON 484200 0710 484221 0112 484330 0340 484211 1000 484930 0900 92150 06061 480841 0010 949040 6150 JO O 3 WD PDP M m 65 CONTROLLER ASSY 155 484500 1730 14 0 0057 ILLUSTRATION NUMBER CONTROLLER ASSY 1 1 BOX SUB ASSY 1 2 HOLDER 1 3 SCREW 5 4 RELAY 1 5 CONDENSER 1 6 CONDENSER 1 7 PLATE 1 8 TERMINAL 1 9 SCREW 2 10 GROMMET 2 11 949321 3010 GROMMET 3 12 91051 04100 SCREW CROSSRECESS PAN 1 13 PLATE ORNAMENT 1 14 WIRE ASSY 1 15 HOLDER 1 16 PACKING 1 66 MEMO 67 SWITCH
32. ROLLER ASSY 484500 1580 ILLUSTRATION DENSO MANUFACTURER MODIFICA NUMBER NUMBER NUMBER im on DAT REMARKS PLATE CAUTION 59 COMPRESSOR ASSY 105 484650 1220 1 0006 ILLUSTRATION NUMBER COMPRESSOR ASSY RELAY OVERLOAD HOLDER WIRE ASSY GROMMET COVER NOD ON 4 60 AIRCONDITIONER ASSY 155 484000 2060 ILLUSTRATION DENSO MANUFACTURER MODIFICA NUMBER NUMBER NUMBER PEACE HEMARBS AIRCONDITIONER ASSY UNIT ASSY 484000 2060 484100 1660 61 484100 1660 UNIT ASSY 15SFE OM0063 62 UNIT ASSY ILLUSTRATION NUMBER 484100 1660 484300 1300 484702 0240 484702 0250 91510 08141 949016 0120 90201 06400 90051 06120 484926 0450 484926 0520 484919 0070 484930 4221 484300 0850 484261 0010 91370 06161 90160 06051 484926 0120 90200 06711 949321 3000 91370 06121 484310 0541 484321 0510 480837 0030 91310 03161 949171 2090 484650 1200 481799 0170 484600 0400 484430 0120 949006 5850 484600 0300 484340 2101 484800 2160 484800 0910 484200 0710 92150 06061 484261 0070 949056 1430 484221 0122 484560 0731 DENSO MANUFACTURER MODIFICA NUMBER NUMBER DESCRIPTION TION DATE 484100 1660 REMARKS UNIT ASSY FRAME SUB ASSY ROLLER ROLLER BOLT WWASHER WASHER TOOTHED WASHER PLATE SCREW CROSSRECESS PAN GROMMET
33. TROLLER ASSY 484500 1740 DENSO MANUFACTURER MODIFICA NUMBER NUMBER DESCRIPTION TION DATE ILLUSTRATION NUMBER REMARKS a _ 77 SWITCH ASSY 15SFE 1 484560 0741 ILLUSTRATION NUMBER REMARKS SWITCH ASSY COVER SUB ASSY PACKING SCREW CROSSRECESS PAN THERMOSTAT TUBE VINYL THERMOSTAT CAP WIRE ASSY M4 L6 FOR ANTIFREEZING 78 COMPRESSOR ASSY 15SFE 1 484650 1200 OM0046 ILLUSTRATION DENSO MANUFACTURER MODIFICA COMPRESSOR ASSY 1 5 PLATE RUBBER 1 6 PLATE RUBBER 1 7 RELAY OVERLOAD 1 8 WIRE ASSY 1 9 COVER 1 10 CAP 1 11 BRACKET 1 12 949056 1520 NUT 1 13 484321 0180 BRACKET 2 14 90910 04301 SCREW BINDING TAPPING 2 15 480841 0010 CLIP 1 79 9 WIRING DIAGRAM 9 1 10SFE MODEL MODEL 10SFE 293479 SYMBOL PART AP Attachment Plug TB Terminal Block CS Control Switch Fan Motor Compressor Motor Capacitor for Fan Capacitor for Compressor Overload Relay for Compressor Internal Overload Relay of Fan Motor Auxiliary Relay Drain Warning Switch Anti freezing Thermostat Drain Warning Lamp Fig 67 Wiring Diagram for MODEL 10SFE 80 MODEL 10SFE 230 1ph 50Hz JP L1 L2 2 1 R ES 5 5 OLC 1 2 13 14 1 2 W N 67 0 LOW HI
34. as 2 Splash large quantities of cool water on eyes or skin 3 Do not attempt to treat the patient by yourself rush the patient to a doctor or hospital for immediate professional treatment Pay special attention not to release the refrigerant into the atomosphere when handling the refrigerant 45 1 Connect the Manifold Gauge D Cut off the crushed end of the pinch off tube at the high pressure side and the low pressure side with a pipe cutter 2 Fit the process tube fitting to the pinch off tube on both sides 3 Connect the charging hoses of the manifold gauge to the process tube fittings Red hose Connect to the high pressure side Blue hose Connect to the low pressure side ACAUTION Do not to connect the high pressure hose to the low pressure side and vice versa 4 Connect the green hose of manifold gauge to the vacuum pump 2 Evacuate the Refrigeration Cycle D Open both the high and low pressure valves and operate the vacuum pump 2 After about 15 minutes check that the low pressure gauge indicates more than 750 mmHg 99 98 kPa 29 53 in Hg in vacuum 3 If the reading is more than 750 mmHg 99 98 kPa 29 53 in Hg in vacuum close both valves and stop the vacuum pump N CHARGING HOSE SIDE REFRIGERANT CYCLE SIDE PINCH OFF TUBE 242990 Fig 60 Mounting of Process Tube Fitting LOW PRESSURE VALVE CLOSED HIGH PRESSURE VALVE
35. dry nitrogen gas 1 2 adjust with the flow regulator through the pinch off tube of the refrigeration cycle to prevent oxidization 4 Take care not to allow dirt water oil etc to enter into the pipe 5 Vertical Joint Heat the whole brazed fitting to a proper brazing temperature Make the brazing filler metal contact with the fitting so that the brazing filler metal starts flowing by itself Stop heating the fitting as soon as the brazing filler metal has flown into the clearance Since the brazing filler metal flows easily into the portion heated to a proper temperature it is essential to keep the whole fitting at a proper brazing temperature VERTICAL DOWN JOINT TUBE BRAZING FILLER METAL BURNER BRAZING FILLER METAL VERTICAL UP JOINT BURNER zq296g 292979 Fig 57 Vertical Down Joint Fig 58 Vertical Up Joint 43 6 2 REMOVAL RELATIVES COMPONENTS This section shows which portions to be removed when replacing the parts Portions to be removed when replacing major parts Replacement Part Portions To Be Removed Compressor Condenser Capillary tube Evaporator 293469 1 This is the 15SFE model other model 105 155 1 are almost same Before removing a brazed portion protect the other parts from the flame with a steel plate etc Before removing the brazed portion from the refrigerat
36. e inside of the cylindrical body and flow speed of the gas decreases inside it This separates the liquid refrigerant within the gas refrigerant due to the difference in specific weight causing the liquid refrigerant to accumulate at the bottom of the accumulator This protects the compressor from possible damage caused by the compression of the liquid refrigerant HIGH TEMP HIGH PRESS LIQUID REFRIGERANT LOW TEMP LOW PRESS GAS AND LIQUID MIXTURE 293159 Fig 5 Capillary Tube FROM EVAPORATOR ZN 1 GAS REFRIGERANT LIQUID REFRIGERANT TO COMPRESSOR gt 243160 Fig 6 Accumulator 3 PIPING LAYOUT All parts of the refrigeration cycle are connected by copper pipe with brazed joints indicated by circled areas below The refrigeration cycle for 15SFE and 15SFE 1 are as follows Model 10SFE is almost same refrigeration cycle EVAPORATOR P INLET PIPE CONDENSER 4 INRET PIPE j Dr 2 gt OUTLET PIPE COMPRESSOR d DISCHARGE CONDENSER H OUTLET PIPE j CONNECTING PIPE AIL EVAPORATOR TO COMPRESSOR CONNECTING PIPE CONDENSER TO CAPILLARY TUBE DESUPERHEATER COMPRESSOR SUCTION PIPE COVERED INSULATION 243179 Except 10SFE Model Fig 7 Refrigeration Cycle of Model 15SFE 8 15SFE 1 4 CONTROL BOX The interior of the control box is shown in the figure below
37. e standard values replace the compressor DEPRESS y 293429 Fig 47 Inspection of Drain Switch BIMETAL POINTS El TERMINAL 243430 Fig 48 Inspection of Overload Relay 243449 Fig 49 Inspection of Compressor Motor 38 7 Restart Auxiliary Relay 15SFE Only 1 Check the continuity between the each pair terminals shown in the right figure 2 Measure the resistance between the terminals 7 and 8 Approx 14 1660 at 200 8 Compressor Relay 15SFE 1 Only 1 Check the continuity between the terminals When the test button is depressed There is a continuity between 11 and 12 13 and 14 terminals and a no continuity between 15 and 16 shown in the right figure 2 When the test button is released There is no continuity between the pair terminals shown in the right figure 2 Measure the resistance between the terminals A and B Approx 1 2kQ at 20 C 2 6 Y 8 J 200029 VOLTAGE APPLY VOLTAGE CONTINUITY Fig 50 Inspection of Restart Auxiliary Relay TEST BUTTON 111315 121416 B 293599 Fig 51 Inspection of Compressor Relay 39 9 Auxiliary Relay 1 Check the continuity between the terminals When the test button is depressed There is a continuity between the pair terminals sho
38. eck Points Item Before washing principle it prohibits to wash the indoor only models floor types etc with water These models are not designed to withstand rain and water However the heat exchangers may only be washed with water if the following precautions are observed Never clean the heat exchangers spine fins with an air blower because this can easily crush fins Before applying water to difficult to remove parts such as the fan or fan casing wipe off and vacuum up any dust Either wash in a part where splashed water will not matter or cover the surroundings with a vinyl sheet with a radius at a little more than 3 meters For units using a drain hose such as hanging types disconnect the drain hose to prevent clogging by dirt and dirty water Prevent watr infiltration into electrical control part by masking them beforehand with cardboard plastic bags rubber tape or the like Observe the following precautions Remove the removable parts for the fan fan casing etc and then wash it Check for drain water effluence to avoid damaging the surrounding environment After washing Never dry the heat exchangers spine fins with an air blower This can easily crush the fins Check that no water has been left in any electrical control part wiring or connector If there is any water wipe it up with a cloth To prevent
39. en each terminal of the fan motor The resistance for 10SFE are as follows Terminal Resistance White Black Black Blue Blue Red The resistance for 15SFE 15SFE 1 are as follows Terminal Resistance CF1 RX12 TBL2 CF2 RX12 TBL2 X is for 15SFE 3 Thermostat Anti Freezing Check the continuity between two terminals at normal temperature 17 C or higher If there is no continuity replace the thermostat WHITE BLACK 203539 Fig 44 Inspection of Fan Motor 10SFE 243540 Fig 45 Inspection of Fan Motor for 15SFE 15SFE 1 242879 Fig 46 Inspection of Thermostat 4 Drain Warning Switch Depress the switch to check for continuity If there is no continuity replace the switch Conditions Depress Terminals Normal 1 2 Continuity No Continuity 1 3 No Continuity Continuity 5 Overload Relay Check for continuity across two terminals of the overload relay Specifications OFF Open Contact 130 5 C Model ON Open Contact 61 11 105 155 15SFE 1 150 5 C 69 10 C 6 Compressor Motor Measure resistance terminals of the compressor motor resistance are as follows At 20 C between the The Model Terminals 15SFE 15SFE 1 Approx 1 970 R C Approx 7150 5 When resistance is not comparable to the abov
40. enser Insufficient cooling of condenser 25 _ Clean condenser 1 3 OVERFLOW DRAIN WATER Phenomenon Checking Area Cause Counter measure Overflow flom the unit 1 Drain Cracks in drain pan Check and repair 2 Water level in drain pan Clogged drain hose Check and replace 3 Drain hole Reversed air flow from drain hole Insert a trap 4 Clogged air filter 1 4 ABNORMAL NOISE OR VIBRATION To deal with abnormal noise or vibration carefully determine the source of the problem and come up with proper countermeasures to solve the problem so that it does not occur again Phenomenon Checking Area Reversed air flow from drain hole due to the excessive negative pressure inside of the unit Cause Clean air filter Counter measure Abnormal noise or vibration 1 Fan Fan interference Repair interfering section Fan transformation Replace fan 2 Compressor fixing nut Looseness of nuts Tighten nuts further 3 Piping Pipe interference Repair interfering section 4 Panel fixing screws Looseness of screws 26 Tighten screws further 2 PREINSPECTION In case of trouble perform the following inspection before disassembly 2 1 INSPECT THE AIR FILTER Remove the air filter and check if it is clogged with dusts or not If it is dirty and clogged
41. ficient cooling due to clogging of the air filter So be sure to first check if the air filter is clogged or not 2 Check the power supply because of the possibility of power source failure Phenomenon Checking Area Cause Counter measure Compressor Usage conditions Operation near usage Review the installation operates high temperature limits place Dirt in condenser or Poor heat exchange Clean fins evaporator Frost in refrigeration cycle Clogging at the frost section Replace clogged section No temperature Insufficient refrigerant Check the leaking part difference between then repair and charge evaporator and condenser refrigerant Compressor does 1 Coil resistance Short or open circuit Replace compressor not operate 00 or Q In case of short check the compressor relay Compressor relay Open circuit or poor contact Replace compressor relay 15SFE 1 ONLY Capacitor for Capacitor malfunction Replace capacitor compressor motor Anti freezing thermostat Gas leakage from the Thermostat exchange temperature sensing section Contact failure Compressor overload Overload relay fault Exchange relay Room thermostat Gas leakage from the Thermostat exchange 15SFE 1 ONLY temperature sensing Correct the setting section Contact failure The set temperature is high Compressor delay relay Wire disconnection Exchange and restart auxiliary ground failure Note relay 155 1
42. ion cycle be sure to cut off the end of the pinch off tube and release the refrigerant gas from the cycle When removing a brazed portion conduct dry nitrogen gas through the pinch off tube of the refrigeration cycle to prevent oxidization 44 7 EVACUATING AND CHARGING Be sure to evacuate the cycle and charge the cycle with HCFC22 refrigerant to the specified amount as follows STEP1 CONNECTING THE MANIFOLD GAUGE P42 STEP2 EVACUATING THE CYCLE P42 lt 15 MINUTES 750mm Hg 30 in Hg OR WHEN LEAK 15 FOUND OR MORE MORE OF VACUUM REPAIR THE CONNECTION OR COMPONENTS STOP EVACUATING THE CYCLE LEAVE FOR 5 MINUTES No leak CHECK THE VACUUM Leak is found INSPECTING THE CYCLE FOR LEAK A gt STEP3 CHARGING THE REFRIGERANT P43 V STEP4 REMOVAL OF MANIFOLD GAUGE P44 Cautions for Handling the Refrigerant 1 When handling refrigerant the following precautions must be observed 1 Always wear eye protection 2 The refrigerant cylinder should never be heated Store the refrigerant cylinder below 40 C 104 F 3 Do not handle refrigerant in an enclosed area where it is exposed to an open flame 4 Care must be taken to protect eyes and skin from refrigerant If refrigerant strikes eyes or skin 1 Do not rub the affected are
43. lay for 15SFE 1 TEST BUTTON 111315 A 12 14 16 B zq359g Fig 11 Compressor Relay for Model 15SFE 1 BIMETAL POINTS TERMINAL 240254 Fig 12 Overload Relay 5 5 THERMOSTAT ANTI FREEZING The heat sensing tube of thermostat is mounted at the outlet tube of the evaporator and detects the evaporator temperature EE SENSING When the evaporator temperature reaches OFF freezing the thermostat switch opens and then the current for the compressor is interrupted The compressor stops working ON 2 1 SWITCH DIAPHRAGM 240224 Fig 13 Thermostat 5 6 FAN MOTOR The fan motor is single phase induction motor When the control switch is set to the I FAN I COOL position the fan motor is activated The overload relay is built in the fan motor Blue When the coil became abnormally high Red Gray temperature the overload relay operate So the fan motor stops operation Black White OUT PUT 40W 243600 Fig 14 Fan Motor 10SFE RX12 TBL2 CF1 CF2 OUT PUT 285W 293619 Fig 15 Fan Motor 15SFE 8 15SFE 1 10 5 7 CONTROL SWITCH The control switch is used to start or to stop the operation There are two switch positions such as 0 OFF and I COOL for models 15SFE and 15SFE 1 There are five switch positions such as 0 OFF I LOW FAN I HI FAN COOL and COOL for model 10SFE 250389
44. n warning switch Anti freezing thermostat Temperature control Compressor delay circuit Dimensions and Weight WxDxH mm inch kg 108 Weight Operating Conditions MAX MIN Intake air temperature range DB 35 C WB 28 2 C F 95 F 60 50 Single phase 230 0 84 3 9 94 14 1 00 2000 8000 Direct expansion Centrifugal fan 360 210 40 Hermetic rotary type 0 6 R 22 0 42 0 93 With With With With Without Without 440 x 400 x 1010 17 3 x 15 7 x 39 8 46 101 35 C 95 F 6096RH 20 C 68 F 50 RH 3 18 35 WB 28 2 95 F 83 F 60 50 Single phase 230 1 7 8 2 90 32 3800 15200 Direct expansion Centrifugal fan 800 470 350 Hermetic rotary type 1 10 R 22 0 68 1 50 With With With With Without Without 490 x 670x 1045 19 3 x 26 4 x 41 1 76 168 40 C 104 F 50 RH 20 C 68 F 50 RH DB 35C WB 28 2 C 95 F 83 F 60 50 Single phase 230 1 7 8 2 90 32 3800 15200 Direct expansion Centrifugal fan 800 470 350 Hermetic rotary type 1 10 R 22 0 68 1 50 490 x 670x 1045 19 3 x 26 4x 41 1 76 168 40 C 104 F 50 RH 20 C 68 F 50 RH 6 3 COOLING CAPABILITY CHARACTERISTICS 1 Cooling Capability Curve
45. reak the compressor circuit and the fan motor circuit Atthe same time the contacts 1 3 are turned on to light the drain warning lamp When the drain tank is removed or the water in the drain tank is drained portion A of the drain tank base plate returns to its original position by the elasticity of the coil spring Then contacts 1 3 turn off extinguishing the drain warning lamp At the same time the contacts 1 2 turn on Under this condition turn the control switch to FAN or COOL position to start operation PORTION A EVAPORATOR zza AD S EAE BASE PLATE 9 243220 Fig 19 Operational Principle Drain Switch 5 12 TEMPERATURE CONTROL ROOM THERMOSTAT 15SFE 1 ONLY Outlet air temperature is controlled by the thermostat which is installed in front of the evaporator This thermostat consists of heat sensing tube bellows contact dial and spring Inside of the heat sensing tube the gas is contained The internal diaphragm is operated by the thermal expansion of the gas and makes the contact turn ON or OFF This thermostat can be set to appropriate temperatures by means of the thermostat dial located below the control switch N THERMOSTAT H PLATE L BELLOWS DIAL SETTING 2 RETRUN AIR TEMPERATURE CONTACT Ty APPROX 90 85 80 75170165 gt Fig 20 Thermostat 1 When the
46. ressure gas so as to change this gas into liquid refrigerant 2 3 EVAPORATOR The evaporator of Model 15SFE amp 15SEF 1 are a heat exchanger using spain fins and tubes The evaporator of Model 10SFE is a heat exchanger using plate fins and tubes It is mounted at the front face of the unit located on the suction side of the blower The purpose of the evaporator is just opposite to that of the condenser The state of the refrigerant immediately before the capillary tube is completely liquid As soon as the liquid pressure drops it starts to boil and in doing so absorbed heat from the air passing over the cooling fins of the evaporator cooling air 2 4 CAPILLARY TUBE The capillary tube causes the high pressure high temperature liquid refrigerant sent from the condenser to evaporator as the refrigerant is sprayed out through the fixed orifice in the capillary tube As a result the temperature and state of the refrigerant become low and mist like and therefore it evaporates easily Inner Dia mm Length mm 243550 lt PLATE FIN gt Fig 4 Spain Fin amp Plate Fin 1 4 0 02 390 1 6 0 02 1300 15SFE 1 2 5 ACCUMULATOR The accumulator is mounted on the suction pipe between the evaporator and the compressor The accumulator separates the liquid refrigerant from the gas refrigerant This allows only gas refrigerant to enter the compressor In the accumulator the refrigerant gas flows to th
47. rth leakage breaker Repair earth leakage section Replace earth leakage breaker Fuse Fuse blown shorting Repair shorting section Replace fuse Power indicator lamp turns on Continuity of operation switch Defective Control switch Replace control switch Auxiliary relay RX Open circuit or poor contact Replace auxiliary switch Drain tank Drain tank is fill with the drain water Discharge the drain water Drain warning switch Open circuit or poor contact Replace drain warning switch Warning indicator lamp turns off Compressor insulation resistance Insulation failure on compressor motor Replace compressor Be sure to check the compressor relay Fan motor insulation resistance Insulation failure on fan motor Replace fan motor Power indicator lamp and warning indicator lamp turn on dimly Voltage Low voltage Repair power indicator Stops after running a while Stops immediately after starting Warning indicator lamp turns on 1 Coil resistance of fan motor Defective fan motor Replace fan motor 2 Temperature of compressor abnormally high Operation of safety device OLC due to compressor malfunction Replace compressor Service dirty areas Insufficient refrigerant or gas leakage Repair and charge refrigerant 3 Dirt on air filter or cond
48. ssor 400 5 2 AUXILIARY RELAY When the current flows through the relay coil TEST BUTTON this creates excitation in the coil and causes it to attract three or four contacts resulting in continuity between terminals 11 and 12 13 and 14 15 and 16 19 and 20 These contacts remain attracted in all operation modes I FAN or I COOL modes 111315 A In the following case the flow of current to the relay coil is cut off X 3 1 Drain warning switch turns 121416 2 The drain tank is full of the condensate water 243580 Fig 9 Auxiliary Relay for 10SFE 15SFE 5 3 COMPRESSOR RELAY 15SFE 1 ONLY This compressor relay turns on only when the unit is operating in I COOL mode and supplies power to the compressor In the following case the relay turns off and cut the power to the compressor 1 When the evaporator is frozen when turning off by Anti freezing thermostat 2 When the auxiliary relay turns off by the drain warning switch 3 When intake air temperature is dropped after that room thermostat turns on 5 4 OVERLOAD RELAY PROTECTOR An overload relay is used for protecting the compressor This protector cuts off the flow of current to the compressor motor when an overcurrent flows or became abnormally high temperature in the compressor This overload relay is attached on the compressor TEST BUTTON 11131519 A 12 14 16 20 B 202559 Fig 10 Auxiliary Re
49. ty 8 and 12 Continuity zq005g oli OB zr001g If the check resulis do not match the above table replace the time delay relay Low x Fig 55 Inspection of Time Delay Relay 5 INSPECTION OF REFRIGERATION CYCLE When something abnormal happens with the refrigeration cycle it will fail the cooling capacity Possible causes are clogging leakage or insufficient refrigerant In such a case carry out the following inspection 5 1 INSPECTION OF CLOGGING PARTS Check for clogging parts of the refrigeration cycle The clogged parts of the refrigeration cycle can be detected by the appearance of frost in the affected area In this case replace the affected parts 5 2 INSPECTION OF REFRIGERANT LEAKAGE Carefully check all connections and each component for refrigerant leakage using the gas leak detector If you find refrigerant leakage repair or replace the affected part and then charge the refrigerant 6 REPAIR OF REFRIGERATION CYCLE As all the components of the refrigeration cycle have been connected by brazing it should be brazed whenever repairing or replacing these parts 6 1 CORRECT BRAZING WORK It is desirable to use a slightly reduced flame Oxy acetylene is often used as it is easy to judge and adjust the condition of the flame Unlike gas welding a secondary flame is used for brazing It is necessary to preheat the base metal properly depending on the shape size or thermal
50. ty 30 kg 70 106 5g 0 2 oz graduation Open the high pressure valve on the manifold gauge and the valve of the refrigerant cylinder Charge the cycle with refrigerant to the specified amount while looking at the scale Charging amount of refrigerant 10SFE 420 g 0 931 6 7 OZ 15STE 15SFE 1 680 g 1 5lbs 7 OZ Close both the high pressure valve on the manifold gauge and the valve on the refrigerant cylinder Valve Setting LO HI Leave valves closed for 5 minutes ClosedlClosed Or more Pointer of low pressure gauge returns zero LOW PRESSURE GAUGE BRAZING OF PIPING 243029 Fig 63 Checking Air tightness Valve Setting LO HI Closed Closed OPEN THE VALVE 7 OF REFRIGERANT CYLINDER BLUE RED CHARGING HOSE GREEN ASA TO PROCESS TUBE FITTING Fig 64 Purging Air inside Charging Hose Valve Setting LO HI Specified Amount LO Closed Open of Refrigerant Closed Closed LOW PRESSURE VALVE VALVE OF REFRIGERANT CYLINDER CYLINDER 22 434 e e m us m REFRIGERANT 222 243069 9 65 Charging with Refrigerant 47 If the cycle cannot charge with specified amount of refrigerant under these conditions follow the steps below 1 Close the high pressure valve on the manifold gauge Operate the unit
51. wn in the right figure 2 When the test button is released There is no continuity between the pair terminals shown in the right figure 2 Measure the resistance between the terminals A and B Approx 1 2kQ at 20 C 10 Room Thermostat 15SFE 1 Model Only Check for continuity between the terminals C and L Turn the shaft anti clockwise gradually from the MAXIMUM COOL position at normal temperature 22 28 The continuity will be broken i e the contact is closed first then opened as the shaft is turned If no such change in continuity occurs replace the thermostat TEST BUTTON 11131 12141 243580 Fig 52 Inspection of Auxiliary Relay for 10SFE 15SFE TEST BUTTON 11 13 15 19 A 12 14 16 20 202559 Fig 53 Inspection of Auxiliary Relay for 15SFE 1 293459 Fig 54 Inspection of Room Thermostat 40 11 Time Delay Relay 1 Check the continuity between the terminals 1 and 9 4 and 12 Terminal Condition 1 and 9 Continuity 4 and 12 If the check results do not match the above table replace the time delay relay 2 Apply a voltage of 230 VAC between terminals 13 and 14 Then after 75 15 seconds check continuity between terminals 1 and 9 4 and Continuity 12 5 and 9 then 8 and 12 Terminal Condition 1 and 9 Continuity 4 and 12 Continuity 5 and 9 Continui
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