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Argo AMG21CDT, Technical Data & Service Manual

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Argo AMG21CDT Technical Data & Service Manual Download Page 2

Page

1. SPECIFICATIONS

3

1-1 Unit Specifications

3

1-2 Major Component Specifications

4

2. DIMENSIONAL DATA

6

2-1 Unit Dimensions

6

3. ELECTRICAL DATA

7

3-1 Electric Wiring Diagram

7

4. REFRIGERANT FLOW DATA

8

4-1 Refrigerant Flow Diagram

8

5. FUNCTION

9

5-1 Room Temperature Control

9

5-2 Heat Exchanger Frosting Prevention

9

5-3 Dry Operation (Dehumidification)

10

6. PERFORMANCE DATA

11

6-1 Performance Chart

11

7. TROUBLESHOOTING

12

7-1 The unit does not work

12

7-2 Electrical circuit interrupted after "ON" button is pressed

12

7-3 Electrical circuit interrupted 3 minutes after "ON" button is pressed

13

7-4 Fan motor does not work while "ON" button is pressed

13

7-5 Fan works at one speed only

14

7-6 Poor cooling

14

7-7 Fan motor works normally but the compressor does not operate

15

2

Summary of Contents for AMG21CDT

Page 1: ...TECHNICAL DATA SERVICE MANUAL AMG21SDT AMG21CDT 0 8180 367 0 05 2004 ...

Page 2: ... Exchanger Frosting Prevention 9 5 3 Dry Operation Dehumidification 10 6 PERFORMANCE DATA 11 6 1 Performance Chart 11 7 TROUBLESHOOTING 12 7 1 The unit does not work 12 7 2 Electrical circuit interrupted after ON button is pressed 12 7 3 Electrical circuit interrupted 3 minutes after ON button is pressed 13 7 4 Fan motor does not work while ON button is pressed 13 7 5 Fan works at one speed only 1...

Page 3: ...s Height mm Width mm Depth mm Package dimensions Height mm Width mm Depth mm Volume m Weight Net kg Shipping kg Data subject to change without notice Rating conditions 1 Cooling indoor air temperature 27 C d b 19 C w b 2 Cooling indoor air temperature 35 C d b 24 C w b 3 Dehumidification indoor air temperature 27 C d b 21 C w b 60 u r 4 Dehumidification indoor air temperature 30 C d b 27 C w b 80 ...

Page 4: ...Dia and lenght mm 1 Ø 170 L 156 No Of poles 4 Rpm Hi Lo speed 1275 1058 with flexible exhaust tube retracted Power input 230 V W Hi Lo 109 80 GREY WHITE 87 3 101 WHITE VIOLET 36 2 41 6 VIOLET YELLOW 22 8 26 3 YELLOW PINK 22 8 26 3 GREY BROWN 51 9 59 6 type Thermostat open C 150 10 close C Automatic C1 µF 3 VAC 450 Float microswitch MS CROUZET F83161 3 Contact rating 16 4 A 250 VAC up open down clo...

Page 5: ...ing 5 A 220 V Coil supply VAC 230 Coil resistance 20 C kΩ 17 2 10 Heat exchanger coil EVAPORATOR COIL Coils Aluminium fin 3 8 Copper tube Rows 4 Fin pitch mm Face area m 0 042 Heat exchanger coil CONDENSER COIL Coils Aluminium fin 7mm Copper tube Rows Fin pitch mm Face area m 0 084 Data subject to change without notice Operating temperature 1 8 5 1 3 20 450 291036 5 778 8 MRA99137 9201 145 5 C 69 ...

Page 6: ...2 DIMENSIONAL DATA 2 1 Unit Dimensions 6 ...

Page 7: ...ROTECTOR OLR K BLUE BLU ELECTRONIC CONTROL CE BROWN BRN COMPRESSOR RELAY PR RC GREEN YELLOW GRN YEL CONDENSATE PUMP PC ORANGE ORG PUMP RELAY RP RED RED DEHUMIDIFIER SWITCH ID WHITE WHT FLOAT MICROSWITCH MS YELLOW YEL ELECTRIC HEATER RELAY RR GREEN GRN SENSOR TH1 S PINK PNK THERMOFUSE TF SAFETY THERMOSTAT TS PROGRAMMER P Legend of colors 7 ...

Page 8: ...4 REFRIGERANT FLOW DATA 4 1 Refrigerant flow diagram 8 ...

Page 9: ... temperature is 1 C above the set temperature the compressor starts working if this has been OFF for at least 3 minutes 3 If the room temperature is the same or under the set temperature the compressor stops working 5 2 Heat Exchanger Frosting Prevention The electronic control stops automatically the compressor each time the coil sensor TH1 reaches a temperature of 1 C for 8 10 minutes long the co...

Page 10: ...MPRESSOR ON LOW SPEED AMBIENT THERMOSTOR BY PASSED COMPRESSOR OFF AFTER 10 MIN WITH AMBIENT TEMPERATURE AT 10 C UNIT WITHOUT AIR RXHAUSTING TUBE MIN 10 C MIN 10 MIN AMBIENT TEMPERATURE 10 C 1 C BUTTON COOL DRY COMPRESSOR OFF FAN LED YELLOW LOW SPEED ON MIN 3 MIN DRY POSITION ON OFF ON 10 ...

Page 11: ...ERFORMANCE DATA 6 1 Performance Chart 4 9 32 Operating characteristics with relative humidity around 50 2 50 3 00 3 50 4 00 4 50 5 00 18 20 22 24 26 28 30 32 34 36 Room temperature C Operating current A 11 ...

Page 12: ... 2 MT contacts YES NO Replace the electronic Check if the pilot NO Is the flickering alarm control CE lamp is burnt lamp on the control Eventually replace it panel not visible 7 2 Electrical circuit interrupted after ON button is pressed Check the unit hardness NO Insulate the short Is it insulated circuit cable YES Check if the fan motor is NO Replace the fan motor working FMI FMI YES Check the e...

Page 13: ...uited YES Replace the compressor CM 7 4 Fan motor does not work while ON button is pressed YES NO NO Check hardness and Fit the fan motor Remove obstruction various continuities properly or replace or replace fan motor YES it assembly Check the capacitor NO Replace the capacitor capacity C YES Check the fan motor INTERRUPTED Replace the fan motor windings FMI assembly YES Replace the electronic co...

Page 14: ...tor winding values MV YES Replace fan motor MV 7 6 Poor cooling Is the unit cooling capacity NO Suggest a more power suitable for the room ful unit thermal loads YES Are both air filters and heat NO Clean filters and or exchanger cleaned heat exchanger YES Check if Difference bet YES The unit works properly ween room air temperature and outlet air delivered is up to 10 C NO Low NO gas charge Proce...

Page 15: ...ed the right position position YES YES Replace klixon ORL YES Check compressor Is room tempera NO The unit cannot klixon contacts ORL ture over 15 C operate below Are they open 15 C NO YES Replace the NO Check the capaci Check the sensor NO Replace the capacitor C tor capacity C continuity TH2 sensor TH2 through 9 10 electronic control YES CE terminal blocks YES Replace the NO Check the com Check ...

Page 16: ...Via Varese 90 21013 Gallarate Va Italy Tel 39 0331 755111 Fax 39 0331 776240 www argoclima it ...

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