Ideal Air 700870 Service Manual Download | Manualshive

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700870,700875,700877

SERVICE MANUAL

Portable Air Condi oners

Evaporator Fan Motor

• The fan motor is a single phase, induc on type.
The motor rotates the fan.
• The following table shows the speciﬁ ca ons of
the fan motor used for each model.

NOTE:

An internal overload relay is used to protect

the fan motor. This relay is built into the fan motor
and interrupts the ﬂ ow of current when there is an
over current situa on, or if abnormally high
temperature builds up in the fan motor.

Condenser Fan Motor

• The fan motor is a single phase, induc on type.
The motor rotates the fan.
• The following table shows the speciﬁ ca ons of
the fan motor used for each model.

NOTE:

An internal overload relay is used to protect

the fan motor. This relay is built into the fan motor
and interrupts the ﬂ ow of current when there is an
over current situa on, or if abnormally high
temperature builds up in the fan motor.

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Summary of Contents for 700870

Page 1: ...IDEAL AIR Portable Air Condi oners Models 700870 700875 700877 SERVICE MANUAL ...

Page 2: ...eristics CONSTRUCTION 9 Internal Structure REFRIGERANT SYSTEM CONSTRUCTION 12 Compressor Compressor lubrication Condenser Capillary Tube Evaporator Accumulator ELECTRICAL SYSTEM 17 Circuit Diagram Control panel Program Setting Controller Board Control Speci ications Self Diagnostic Codes Compressor Evaporator Fan Motor Condenser Fan Motor Capacitor Molded Case Circuit Breaker Magnetic Contact Ther...

Page 3: ... 36 Disassembly Control panel removal Electrical parts and relay board removal Fan motor removal DISASSEMBLY For 700875 700877 43 Disassembly Control panel removal Electrical parts and relay board removal Fan motor removal REFRGERANT SYSTEM REPAIR 50 Brazing Removal of Refrigerant System Components Charging the System with R 410A Refrigerant Refrigerant Charging Work ...

Page 4: ...ooler which directs cool air to par cular areas or objects 2 The 700870 700875 700877 has the following features 3 The innova ve design of the 700870 700875 700877 has resulted in one compact unit replacing the need for two separate units 4 With the whole cooling system built into one compact unit the 700870 700875 700877 requires no piping and can be easily transported and installed 5 The 700870 ...

Page 5: ...page 5 700870 700875 700877 SERVICE MANUAL Portable Air Condi oners SPECIFICATIONS Exterior Dimension Diagram 700870 4 36 2 2 9 12 5 5 9 36 2 17 5 19 8 13 1 12 5 6 20 ...

Page 6: ...700870 700875 700877 SERVICE MANUAL 6 page Portable Air Condi oners 700875 22 1 17 3 16 3 7 8 7 1 4 8 36 4 5 6 1 9 16 3 5 9 42 1 20 24 4 ...

Page 7: ...page 7 700870 700875 700877 SERVICE MANUAL Portable Air Condi oners 700877 6 2 4 7 4 7 6 2 22 1 22 1 17 3 16 3 4 8 36 4 5 6 16 3 42 1 20 1 9 5 9 24 4 ...

Page 8: ...h Refrigerant Wheels Safety Devices 10 3 17 12 1 64 113 18 45 64 86 18 30 32 86 0 30 377 35 R 410A Toshiba 15 9 451 LG 15 5 440 3 17 12 2 64 113 18 45 64 86 18 30 32 86 0 30 527 50 R 410A 42 3 1200 450 250 3 17 12 3 64 113 18 45 64 86 18 30 32 86 0 30 743 70 R 410A 39 9 1130 450 280 4 76mm 12 300 16 5 4 102mm 16 400 30 9 4 102mm 16 400 30 9 17 5 x 54 9 x 19 9 445 x 1395 x 505 22 0 x 62 x 24 4 560 ...

Page 9: ...rs Condenser Condenser Motor Evaporator Cooling Air Duct Condenser Air Outlet Control Box Relay Board Capacitor Drain Tank Drain Tank Switch Compressor Locking Swivel Caster Caster Rear Eva Scroll Control Panel Evaporator Motor CONSTRUCTION Internal Structure 700870 ...

Page 10: ...ble Air Condi oners Control Panel Eva Scroll Drain Tank Drain Tank Switch Condenser Condenser Motor Control Box Relay Board Capacitor Caster Rear Locking Swivel Caster Compressor Evaporator Evaporator Motor Cooling Air Duct Condenser Air Outlet 700875 ...

Page 11: ...ble Air Condi oners Control Panel Eva Scroll Drain Tank Drain Tank Switch Condenser Condenser Motor Control Box Relay Board Capacitor Caster Rear Locking Swivel Caster Compressor Evaporator Evaporator Motor Cooling Air Duct Condenser Air Outlet 700877 ...

Page 12: ...SERVICE MANUAL 12 page Portable Air Condi oners REFRIGERANT SYSTEM CONSTRUCTION 700870 700875 700877 Flow of Refrigerant Condenser Air Outlet Condenser Motor Compressor Accumulator Evaporator Capillary tube Drier Condenser ...

Page 13: ... two mechanisms the drive mechanism compressor motor and the compression mechanism compressor When the rotor sha of the motor drive mechanism turns the roller compression mechanism rotates to compress the refrigerant To Condenser Accumulator Strainer From Evaporator Blade Discharge Valve Oil Lubricator Roller Cylinder Rotor Stator Terminal ...

Page 14: ...e of the cylinder 3 The discharge valve remains closed 3 Discharge 1 The pressure in the cylinder exceeds that in the discharge chamber and the discharge valve opens 2 On the suc on side refrigerant suc on con nues 4 Comple on of compression 1 When compression is completed all of the refrigerant has been drawn from the suc on chamber 2 Opera on then returns to step 1 Start of compression and the a...

Page 15: ...pplied to the lubrica on groove for each sha journal lubrica ng the bearing In this lubrica on system oil enters into each bearing separately and returns to the oil reservoir This system eﬀec vely prevents bearing temperature increases and oﬀers high reliability In addi on the specially treated sha journal keeps the bearing from being damaged during high temperature opera on Condenser 1 The conden...

Page 16: ...ger covered with slit ﬁns Heat is removed from the air being pulled across the evaporator by the centrifugal fan The resul ng cool air is expelled through the cooling air ducts Accumulator The accumulator is mounted on the suc on gas pip ing between the evaporator and the compressor The accumulator separates the liquid refrigerant from the gas refrigerant allowing only the gas refrig erant to ente...

Page 17: ...page 17 700870 700875 700877 SERVICE MANUAL Portable Air Condi oners ELECTRICAL SYSTEM Circuit Diagram 700870 TH1 TH2 TH3 DRAIN PUMP ...

Page 18: ...700870 700875 700877 SERVICE MANUAL 18 page Portable Air Condi oners 700875 700877 TH1 TH2 TH3 DRAIN PUMP ...

Page 19: ...low speed If POWER BUTTON is pressed during opera on unit stops 2 BLOWER BUTTON Changes fan speed from LOW to HIGH when pressed 3 SPOT COOL BUTTON Ac vates compressor and begins producing cool air 5 seconds a er bu on is pressed Regulates temperature based on outlet cool air temperature 4 ROOM COOL BUTTON Ac vates compressor and produces cool air 5 seconds a er bu on is pressed Regulates temperatu...

Page 20: ...a on stops when ALARM light is ac vated blinking longer than 3 minutes 7 CURRENT TEMP Room cool mode displays current room temperature in display in Fahrenheit SPOT COOL Mode displays outlet cool air temperature during normal opera ons In order to change F to C press SPOT COOL and ROOM COOL bu ons together for 2 seconds C will blink 2 mes and the ﬁgure will change to C ALARM codes blink and are di...

Page 21: ...reven on sensor Temperature Correc on Temperature Correc on 1 5minutes control is available per 1 minute 1 c 5 c Descrip on the range of se ng Temperature Se ng Program Se ng Auto restored when no se ng is made in each mode Power Switch Target Temperature ON OFF when keep depressing more than 1 seconds Keep depressing more than 3 seconds Delay me Change Devia on temperature se ng Change Temperatur...

Page 22: ...nel assembly 1 Power supply requirements The 700870 requires a single phase 115 V 60 Hz power supply while the 700875 700877 requires a single phase 208 230 V 60 Hz power supply 2 Relay board fuse The relay board fuse is the only serviceable component on the relay board assembly This fuse provides protec on against damage to the step down transformer The fuse must be replaced with the exact same p...

Page 23: ... POWER BUTTON is pressed during opera on unit stops ON OFF Bu on Indica on Func on Connector Control Panel Input Symbol CO On Between 10 to 20 mA at DC12 V Oﬀ No signal On Between 10 to 20 mA at DC12 V Oﬀ signal On Between 10 to 20 mA at DC12 V Oﬀ signal On Between 10 to 20 mA at DC12 V Oﬀ signal On Ac vates Defect control Contact Normally open LED shows CO Output signal ON Oﬀ Ac vates Defect cont...

Page 24: ...ard turns on opera ng the compressor Speciﬁca ons RL4 Compressor On Oﬀ relay output 5 A at AC 250 V 3 An freeze control An freeze controls turns the compressor on and oﬀ by turning the RL4 relay on in accordance with the freeze protec on thermistor TH3 temperature As a result decreases in cooling performance due to frost buildup on the evaporator are prevented Compressor oﬀ condi ons Freeze protec...

Page 25: ... any me the compressor is turned on by either the POWER ON OFF bu on or ROOM COOL or SPOT COOL ON OFF bu on Speciﬁca ons Time Delay 120 sec 5 Automa c restart and recovery func on The microprocessor contains a feature that automa cally restart the unit a er power is lost and regained and also has memory to store and recover opera on status in the even of a power loss Status of memory during power ...

Page 26: ...ure control changes the RL4 compressor on oﬀ relay status according to TH3 temperature in the available range 4 F to 140 F 20 C to 60 C ON OFF RL4 Compressor Relay Set Temp 3 F Set Temp 1 7 C Set Temp Inlet Air Temperature When compressor opera on con nues within this range for more than 5 minutes the RL4 relay stops ...

Page 27: ...on including kink or blockage Ambient temperature is too high Unstable voltage supply Defec ve compressor Do not use the air condi oner if ambient temperature is lower than 18 C 64 F Contact a qualiﬁed service agent Clean air ﬁlter Ensure exhaust duct is not blocked kinked Do not use the air condi oner if ambient temperature is higher than 45 C 113 F Contact a qualiﬁed service agent Contact a qual...

Page 28: ...or Speciﬁca ons 2 Compressor overload relay The compressor overload relay is used to protect the compressor motor The relay interrupts the ﬂow of current when there is an overload condi on and high temperature builds up in the compressor 2000W 1980W 1175W 5 Rated Voltage Rated Output 2700W 2715W 5 700875 700870 700877 208 230 V 115V 208 230 V Run capacitor AUX MAIN R S C COMPR MOTOR Inner protecto...

Page 29: ...r and interrupts the ﬂow of current when there is an over current situa on or if abnormally high temperature builds up in the fan motor Condenser Fan Motor The fan motor is a single phase induc on type The motor rotates the fan The following table shows the speciﬁca ons of the fan motor used for each model NOTE An internal overload relay is used to protect the fan motor This relay is built into th...

Page 30: ...evaporator outlet piping and detects low temperature on the evaporator as a resistance value Check capacitance 700875 700870 Compressor Evaporator Fan Motor Condenser Fan Motor Compressor Evaporator Fan Motor Condenser Fan Motor Compressor Evaporator Fan Motor Condenser Fan Motor Capacitor Rated Voltage Capacitance 700877 450 v 450 v 450 v 450 v 450 v 450 v 250 v 370 v 370 v 10uF 8uF 5uF 3 5uF 8uF...

Page 31: ...system uses a 250 V 0 1 A ra ng micro switch for this func on When approximately 3 17 gal 12 L of drain water accumulates in the drain tank the drain tank base plate which is supported at fulcrum a is pushed down in the direc on of the arrow When the drain tank base plate is forced down por on A located at the top of the drain tank base plate turns oﬀ micro switch contacts 1 2 Evaporator Drain Pan...

Page 32: ...e screws enclosed inside of box with cool air outlet hose s to install the cool air outlet hose s on the air condi oner as shown in Figure 5 Op onal A warm air top exhaust duct can be purchased separately Exhaust duct ﬁts over the top exhaust fan duct improving cooling eﬃciency allowing hot air to be exhausted to another loca on 1 Remove duct from carton 2 Place duct on the top of air condi oner 3...

Page 33: ...outlet grilles 8 DO NOT use the unit in areas where it will be exposed to rain or water 9 NEVER unplug the unit while it is opera ng 10 DO NOT place any foreign objects on the unit 11 DO NOT operate the unit with wet or damp hands 12 DO NOT allow chemical substances to come into contact with the unit 13 DO NOT operate the unit in the presence of ﬂammable substances or va pors such as alcohols pes ...

Page 34: ...e electrical outlet 20 Regularly clean the ﬁlters to maintain eﬃciency If the ﬁlters are not cleaned regularly the units output performance and eﬃciency will decline and energy consump on will increase 21 DO NOT operate the unit with a damaged power cord or plug a er it mal func ons has been dropped or damaged 22 Only use in the upright posi on on an even ﬂat surface Unit must be posi oned at leas...

Page 35: ...ted No cause Spring is possibly broken The unit doesn t work No cold air ﬂows from the cold air outlet Water ﬂow can be heard a er compressor shuts oﬀ Alarm displays FT with less than half of condensate water in the tank Spring is possibly broken 1 Clean the ﬁlter 2 Wait 2 minutes a er unit is turned oﬀ before turning the unit back on 3 The temperature of the compressor can be higher when the ambi...

Page 36: ...700870 Disassembly 1 Remove the drain tank 2 Take out the four 4 screws and then remove the cooling air duct 3 Take out the three 3 screws and then remove the electric cover 4 Oﬀ the circuit breaker For safety Cooling Air Duct Screws 4 Drain Tank Screws 3 electric cover Circuit Breaker ...

Page 37: ...seven 7 screws Unfasten two 2 screws to a half point Pull the front panel forward 6 Disconnect the connector from the control panel and then remove the front panel 7 Take out the ﬁve 5 screws and then remove the upper panel Screws 7 Screws 2 Front Panel Connector Control panel Screws 5 ...

Page 38: ...r from the right side panel 10 Take out the ten 10 screws and then remove the Right side panel 11 Remove the air ﬁlter from the le side panel 12 Take out the eight 8 screws and then remove the Le side panel Screws 5 Back Cover Screws 10 Right Side Panel Air Filter Screws 8 Le Side Panel Air Filter Be careful not to damage temperature sensor CAUTION ...

Page 39: ...page 39 700870 700875 700877 SERVICE MANUAL Portable Air Condi oners 1 Take out the four 4 screws and then remove the control panel Screws 4 Control Panel Control Panel Removal ...

Page 40: ... Electrical parts and relay board removal 700870 MCCB Mold Case Current Braker OCR Over Current Relay Fan Motor for Condenser Compressor R C MC Magne c Contactor Data Cable Connector TH1 Capacitor For Compressor R Compressor S C Condenser Motor TH2 TH3 Full Drain Switch ...

Page 41: ...700870 700875 700877 SERVICE MANUAL Portable Air Condi oners 700870 Control Box Capacitor for Compressor Cable Tie Stand Oﬀ Relay Board MC Magne c Contactor OCR Over Current Relay MCCB Mold Case Current Braker ...

Page 42: ...e 3 bolts of evaporator top cover 2 Loosen the set screw with a hex key and then remove the evaporator fan 3 Take oﬀ the ﬁve 5 bolts of the Eva scroll and then remove the Eva scroll 4 Loosen the set screw with a hex key and then remove the condenser axial fan 5 Take oﬀ the four 4 hex bolts from the condenser motor bracket and then remove the condenser fan motor 6 Take oﬀ the four 4 hex bolts from ...

Page 43: ...nk 2 Remove two 2 support lines and remove front panel 3 Take out the twelve 12 screws and then remove the cooling air duct 700875 eight 8 screws 4 Take out the three 3 screws and then remove the service panel 5 Oﬀ the circuit breaker For safety Cooling Air Duct Screws 12 Front Panel Drain Tank Screws 3 Service Panel Circuit Breaker ...

Page 44: ... and then remove the upper panel 7 Unfasten the connector from the control panel and then remove the front panel 8 Remove the air ﬁlter from the back panel 9 Take out the two 2 screws and then remove the back plate panel Screws 14 Upper Panel Control panel Connector Screws 2 Back Plate Panel Air Filter ...

Page 45: ...ews and then remove the back cover panel 11 Take out the four 4 screws Unfasten two 2 screws to a half point and then remove the low cover panel 12 Take out the eight 8 screws and then remove the right side panel Screws 8 Back Cover Panel Low Cover Panel Screws 4 Screws 2 Screws 8 Right Side Panel ...

Page 46: ...NUAL 46 page Portable Air Condi oners 13 Take out the eight 8 screws and then remove the le side panel 1 Take out the four 4 screws and then remove the control panel Screws 8 Le Side Panel Screws 4 Control Panel Control Panel Removal ...

Page 47: ...y board removal 700875 700877 MC Magne c Contactor Data cable connector Capacitor for Evaporator Motor Capacitor for Condenser Motor Fan Motor for Condenser Compressor R C R Compressor S C Full Drain Switch TH1 TH2 TH3 MCCB Mold case Current Braker OCR Over Current Relay Capacitor for Compressor ...

Page 48: ...48 page Portable Air Condi oners 700875 700877 Control Box Capacitor for Compressor Cable Tie Capacitor for Eva motor Capacitor for Cond motor Stand Oﬀ Relay Board MC Magne c Contactor OCR Over Current Relay MCCB Mold Case Current Braker ...

Page 49: ...hree 3 bolts of evaporator top cover 2 Loosen the set screw with a hex key and then remove the evaporator fan 3 Take oﬀ the ﬁve 5 bolts of the Eva scroll and then remove the Eva scroll 4 Loosen the set screw with a hex key and then remove the condenser axial fan 5 Take oﬀ the four 4 hex bolts from the condenser motor bracket and then remove the condenser fan motor 6 Take oﬀ the four 4 hex bolts fr...

Page 50: ...uc vity of the brazed ﬁ ng The most important point in ﬂame brazing is to bring the en re brazed ﬁ ng to a proper brazing temperature Care should be taken not to cause overﬂow of the brazing ﬁller metal oxida on of the brazing ﬁller metal or ﬁller metal deteriora on due to overhea ng the ﬂux 2 Brazed ﬁ ngs and ﬁ ng clearance In general the strength of the brazing ﬁller metal is lower than that of ...

Page 51: ... of the pipe undergoes an oxida ve reac on due to the brazing ﬂame Introduce dry nitrogen gas 0 3 gal min 1 L min adjust with the ﬂow regulator through the pinch oﬀ tube of the refrigerant cycle to prevent oxida on NOTE Do not get foreign ma er such as dirt water or oil into the piping 5 Ver cal joints For ver cal joints heat the en re brazed ﬁ ng to the proper brazing temperature Bring the brazin...

Page 52: ...be observed Always wear proper eye protec on while handling refrigerant Maintain the temperature of the refrigerant container below 104 F 40 C Perform repairs in a properly ven lated area Never in an enclosed envi ronment Do not expose refrigerant to an open ﬂame Never smoke while performing repairs especially when handling refrigerant Be careful the liquid refrigerant does not come in contact wit...

Page 53: ...e vacuum pump to start evacu a on Evacuate the system for approxi mately 30 min 3 When the low pressure gauge indicates 30 inHg 100 kPa turn oﬀ the vacuum pump and close the Low pressure valves of the gauge manifold 4 Leave the high pressure valve and the lowpressure valve of the gauge manifold closed for ﬁve min or more and con ﬁrm that the gauge pointer does not return to zero Tube Fitting High ...

Page 54: ... valve of the re frigerant cylinder Charge the system with refrigerant to the speciﬁed amount Standard Amount of Refrigerant 700870 Toshiba 15 9 oz 451 g LG 15 5 oz 400 g 700875 42 3 oz 1200 g 700877 51 8 oz 1470 g 5 Close the high pressure valve of the gauge manifold and the valve of the refrigerant cylinder Do not a empt any repair on a charged system Before checking for gas leaks fully conﬁrm t...

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