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Argo ASR525CL, Technical Data & Service Manual

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Argo ASR525CL Technical Data & Service Manual Download Page 28

(12) Defective Sensor.

1. Indoor (heat exchanger) coil temp. Sensor is defective.

(a) Open (=No continuity in sensor)
Compressor and outdoor fan repeatedly go ON for 10 minutes and OFF for 6 minutes when sensor opens.

(b) Short
“Freeze Prevention” does not operate when dehumidified water is frozen on the indoor coil.

2. Room temp. Sensor (in the remote control unit) is defective.

(a) Open (=No continuity in sensor)
Neither the outdoor fan nor compressor runs.

(b) Short
The outdoor fan and compressor do not stop. — Excessive cooling.

28

Summary of Contents for ASR525CL

Page 1: ...TECHNICAL DATA SERVICE MANUAL INDOOR UNIT ASR525CL ASR536CL ASR548CL SPLIT SYSTEM AIR CONDITIONER ASR548CL 0 8180 365 0 10 2004 Model No Product Code No ASR525CL 387006100 387006102 387006101 ASR536CL...

Page 2: ...w wiring to touch the refrigerant tubing compressor or any moving parts of the fan Do not use multi core cable when wiring the power supply and control lines Use separate cables for each type of line...

Page 3: ...3 1 Electric Wiring Diagram 13 3 1 Schematic Diagram 14 4 FUNCTION 15 4 1 Room Temperature Control 15 4 2 Freeze Prevention 16 5 TROUBLESHOOTING 17 6 CHECKING ELECTRICAL COMPONENTS 29 6 1 Measurement...

Page 4: ...panel Height mm Width mm Depth mm Package dimensions Unit Height mm Width mm Depth mm Volume m3 Ceiling panel Height mm Width mm Depth mm Volume m3 Weight include panel Net kg Shipping kg Ceiling pane...

Page 5: ...Depth mm Package dimensions Unit Height mm Width mm Depth mm Volume m3 Ceiling panel Height mm Width mm Depth mm Volume m3 Weight include panel Net kg Shipping kg Ceiling panel Net kg Shipping kg DAT...

Page 6: ...Depth mm Package dimensions Unit Height mm Width mm Depth mm Volume m3 Ceiling panel Height mm Width mm Depth mm Volume m3 Weight include panel Net kg Shipping kg Ceiling panel Net kg Shipping kg DAT...

Page 7: ...YEL BLK 60 2 Safety devices Type Operating temp Open C Close C Run capacitor F VAC Panel Model Flap motor rating rpm nominal output W coil resistance 25 C k Dew proof heater Heat Exch Coil Coil Rows...

Page 8: ...ty devices Type Operating temp Open C Close C Run capacitor F VAC Panel Model Flap motor rating rpm nominal output W coil resistance 25 C k Dew proof heater Heat Exch Coil Coil Rows Fin pitch mm face...

Page 9: ...y devices Type Operating temp Open C Close C Run capacitor F VAC Panel Model Flap motor rating rpm nominal output W coil resistance 25 C k Dew proof heater Heat Exch Coil Coil Rows Fin pitch mm face a...

Page 10: ...g Voltage Input Total head capacity Safety float switch Model Contact rating 45 C 2 2 5 50 C 1 8 5 10 C 10 0 5 20 C 6 3 5 30 C 4 0 5 40 C 2 7 5 15 C 8 0 5 0 C 16 5 5 5 C 12 8 5 KTEC 35 S6 55 C 1 5 5 P...

Page 11: ...3 4 566 Suspention bolt pitch 820 Ceiling opening 820 Ceiling opening 377 Panel center 757 Suspention bolt pitch 368 25 9 X Air intake grille Air outlet Refrigerant liquid line D 9 52 In case of 25 ty...

Page 12: ...8 8 3 2 2 1 4 X X view 124 124 124 338 30 48 124 1066 12 100 12 12 12 244 249 776 180 5 7 6 244 182 157 59 291 292 339 232 790 1150 860 500 Air intake grille Air outlet Refrigerant liquid line D 9 52...

Page 13: ...1 1 3 1 3 3 1 7 5 2 1 3 4 FS 3P RED 49FMI 3P WHT 7P WHT 3P WHT COM FM M 7P CONNECTOR 9P WHT CONNECTOR 4P WHT 1 2 3 4 5 6 7 8 9 1 S P RC 2 3 4 5 6 7 8 9 YEL ORG VLT WHT GRY GRY PNK BRN BLK ORG VLT WHT...

Page 14: ...01 DP LM TR RY01 RY06 RY08 TH1 TH2 INDOOR FAN MOTOR INDOOR MOTOR THERMAL PROTECTOR RUNNING CAPACITOR FUSE DRAIN PUMP DPH DEW PROOF HEATER AUTO LOUVER MOTOR FS FLOAT SWITCH POWER TRANSFORMER AUXILIARY...

Page 15: ...circuit has a built in automatic time delay to allow the internal pressure to equalize As a protective measure the control circuit switches the compressor OFF not before than 5 minutes of compressor...

Page 16: ...falls below 0 8 C the control circuit stops the compressor for at least 3 minutes The compressor does not start again until the temperature rises above 8 C or 6 minutes has elapsed ON ON ON ON OFF OFF...

Page 17: ...ne voltage are correctly connected between the indoor unit and outdoor unit 3 Check the power supply Check that the voltage is within the specified range 10 of the rating Check that power is supplied...

Page 18: ...ve inter unit power line from terminal plate in outdoor unit Check insulation resistance of outdoor unit OK Remove inter unit power line from terminal plate in indoor unit Check insulation resistance...

Page 19: ...ng Replace it with a suitable one larger capacity Check resistance of louver motor winding Neither indoor unit nor outdoor unit runs A No power is supplied Check power supply Is power being supplied t...

Page 20: ...d No 2 poles of the socket Has Operation selector switch been set to ON position YES Set Operation selector switch to ON NO Neither unit runs Switch Ass y or P C B Ass y in the indoor unit is defectiv...

Page 21: ...or twice by hand Check fan casing for foreign matter on inside Remove foreign matter or repair Repair or replace Fan cannot be rotated OK Check fan motor capacitor Fan motor burnout or foreign matter...

Page 22: ...ting button COOLER Set Operation selector switch to TEST in indoor unit YES Outdoor unit runs Is room temperature too low NO Try to run both indoor and outdoor units with another remote control unit O...

Page 23: ...y No voltage appears P C B Ass y is defective D Check the indoor unit P C B Is temperature of compressor abnormally high Insufficient refrigerant gas YES NO Compressor is defective Charge refrigerant...

Page 24: ...an motor capacitor OK P C B assy is defective Check fan rotation Rotate fan gently once or twice by hand Check fan casing for foreign matter on inside Remove foreign matter or repair Repair or replace...

Page 25: ...r or replace Fan cannot be rotated Fan motor burnout or foreign matter in bearing 8 Compressor does not run Check compressor motor capacitor Check resistance of compressor motor winding Check compress...

Page 26: ...small YES Check clogging of air filter Temperature difference between suction and discharge air is large enough approx 10 deg or more Clean filter Air filter is clogged Set fan speed to either HIGH o...

Page 27: ...eaning of LED indication LED1 POW Off Light Light Flash Light Light Off Light Normal state Low pressure switch is activated Negative phase Defective phase High pressure switch is activated Outdoor fan...

Page 28: ...10 minutes and OFF for 6 minutes when sensor opens b Short Freeze Prevention does not operate when dehumidified water is frozen on the indoor coil 2 Room temp Sensor in the remote control unit is def...

Page 29: ...sulation resistance tester and measure the resistance by placing a probe on each terminal screw on the terminal plate fig 2 Note that the ground line terminal should be skipped for the check 6 1 4 Mea...

Page 30: ...then place a probe on the capacitor terminals as shown in fig 7 Observe the deflection of the pointer setting the resistance measuring range of the multimeter to the maximum value The capacitor is go...

Page 31: ...aracteristic Curve Room temp sensor Coil sensor PBC 41E KTEC 35 Resistance kn 10 15 20 25 30 35 40 10 9 8 7 6 5 4 3 2 1 Temperature C 20 15 10 5 0 5 10 15 20 0 5 10 15 20 25 30 35 40 Temperature C Res...

Page 32: ...Via Varese 90 21013 Gallarate Va Italy Tel 39 0331 755111 Fax 39 0331 776240 www argoclima it...

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