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24

SS-SVX07B-E4

Maintenance

Table 14 - Troubleshooting

Symptoms

Possible causes 

Checks

Corrective action 

No cooling or
heating 

A. Compressor or fan is not operating. 

1. Loose electrical connections. 

1. Tighten the connections if necessary. 

2. Check the fuses and wiring. 

2. Replace the fuses if necessary. 

B. The fan is operating but the compressor

does not start. 

1. Check the compressor's wiring and

winding resistors. 

1. If the check shows the motor windings

are broken or earthed, replace the
compressor. 

2. Check the capacitor 

2. Replace  if necessary. 

C. The compressor is operating but the fan

does not start. 

1. Check the fan motor, the capacitor or

the wiring. 

1. Repair or replace 

D. Control switch is defective, incorrectly

wired or adjusted. 

1. Check the control switch connections

and the temperature setting. 

1. Change the setting. Replace if defective. 

Insufficient heating
or cooling 

A. Lack of refrigerant fluid. 

1. Check there are no leaks. 

1. Drain, repair and recharge.

B. Insufficient air volume. 

1. Check the air filter. 

1. Clean and replace. 

2. Check the fin assemblies are clean. 

2. Clean if obstructed. 

3. Check the fan. 

3. If the fan is loose on its shaft, tighten the

fixing bolts. 

4. Check the wiring and capacitors. 

4. Repair or replace 

C. Obstructed capillaries or blocked orifice. 

1. Check there is no humidity in the

system. 

1. Drain and recharge.

Содержание MCD 048

Страница 1: ...Installation Operation Maintenance MCD MWD 512 518 524 530 536 048 060 Ductable ceiling suspended unit SS SVX07B E4...

Страница 2: ...f this condition is not respected the constructor warranty could be cancelled Do not release refrigerant into the atmosphere Foreword These Installation Operation and Maintenance instructions are give...

Страница 3: ...e t l i F 9 1 r e l l o r t n o c d e r i w e h t g n i l l a t s n I Operation 0 2 m u u c a v a g n i t a e r C 0 2 e g r a h c t n a r e g i r f e r l a n o i t i d d A 1 2 d e e p s n a F 1 2 n o...

Страница 4: ...lations Check that the electrical characteristics on the nameplate correspond to those of the national grid The electrical installation shall include a disconnect switch in compliance with local elect...

Страница 5: ...62 Length mm 420 755 755 855 855 Face Area m2 0 213 0 420 0 420 0 650 0 650 Number of rows 2 2 2 2 2 Number of circuits 1 2 2 4 4 Fins per feet fpf 180 180 180 180 180 Outdoor Fan Type Axial Axial Axi...

Страница 6: ...h mm 855 855 855 855 Face Area m2 0 650 0 650 1 048 1 048 Number of rows 2 2 2 2 Number of circuits 4 4 6 6 Fins per feet fpf 180 180 240 240 Outdoor Fan Type Axial Axial Axial Axial Number 1 1 2 2 Di...

Страница 7: ...Length mm 420 755 755 855 Face Area m2 0 213 0 420 0 420 0 650 Number of rows 2 2 2 2 Number of circuits 2 4 4 4 Fins per feet fpf 180 180 180 180 Outdoor Fan Type Axial Axial Axial Axial Number 1 1 1...

Страница 8: ...2 1219 1219 Length mm 855 855 855 Face Area m2 0 650 1 048 1 048 Number of rows 2 2 2 Number of circuits 4 6 6 Fins per feet fpf 180 240 240 Outdoor Fan Type Axial Axial Axial Number 1 2 2 Diameter mm...

Страница 9: ...ove Height mm 508 559 610 762 762 Length mm 420 755 855 855 855 Face Area m2 0 213 0 420 0 521 0 650 0 650 Number of rows 2 2 2 2 2 Number of circuits 2 4 2 3 3 Fins per feet fpf 180 180 240 180 180 O...

Страница 10: ...Height mm 762 762 1219 1219 Length mm 855 855 855 855 Face Area m2 0 650 0 650 1 048 1 048 Number of rows 2 2 2 2 Number of circuits 2 2 4 4 Fins per feet fpf 180 180 240 240 Outdoor Fan Type Axial A...

Страница 11: ...er Groove Height mm 508 559 559 762 Length mm 420 755 755 855 Face Area m2 0 213 0 420 0 420 0 650 Number of rows 2 2 2 2 Number of circuits 2 4 4 4 Fins per feet fpf 180 180 180 180 Outdoor Fan Type...

Страница 12: ...roove Inner Groove Height mm 762 1219 1219 Length mm 855 855 855 Face Area m2 0 650 1 048 1 048 Number of rows 2 2 2 Number of circuits 4 6 6 Fins per feet fpf 180 240 240 Outdoor Fan Type Axial Axial...

Страница 13: ...MCD MWD 524 23 578 12 305 42 9 1090 36 1 920 6 7 170 3 3 87 8 3 210 4 3 110 MCD MWD 530 23 578 12 305 48 3 1228 42 1 1069 6 7 170 3 3 87 8 3 210 4 3 110 MCD MWD 536 23 578 12 305 48 3 1228 42 1 1069 6...

Страница 14: ...x 2 5 TTK TWK 048 4 x 2 5 TTK TWK 060 4 x 2 5 1 Indoor and outdoor units are powered separately 2 Number of wires and section area are given for a maximum wire length of 50m If the wire is longer tha...

Страница 15: ...the drilling of the holes in the walls to connect the unit Make sure the maximum distances between the two units are not exceeded See Figure 3 and Table 10 Figure 3 Recommended clearances and maximum...

Страница 16: ...vertical line and an additional trap must be positioned every 7 5 m of vertical elevation to allow oil return to the compressor There are no special technical recommendations for liquid lines because...

Страница 17: ...same way as for brazing of the indoor unit s lines Line insulation To prevent heat losses and condensation both liquid and gas lines must be thoroughly insulated Unscrew the Flare nuts which are place...

Страница 18: ...iring and earthing arrangements must comply with local legislation WARNING Never open the indoor or outdoor unit without first disconnecting the power supply There is a risk of electrocution CAUTION 1...

Страница 19: ...C Intake from the back Table 12 Duct connection dimensions Unit size Length mm Height mm 512 518 748 198 524 530 536 948 248 048 060 1148 298 Filtering Filtering the air is necessary to ensure the un...

Страница 20: ...the system has been vacuum pumped and is in operation and if the distance between the units is greater than 6m it may be necessary to add an additional charge Table 13 indicates the amounts of refrige...

Страница 21: ...d discharge ducts are not blocked 11 Check the filters are correctly positioned Show the user how to change the filters 12 Power up the system and observe operation carefully make any necessary adjust...

Страница 22: ...ton 4 Sleep button 5 Mode button 6 Sweep button to turn on off the sweep motor 7 Louver button 8 Timer start button 9 Send button to transmit all parameters shown on the LCD to the main control board...

Страница 23: ...they are not damaged Clean them if necessary and verify their alignment 3 Motor check the wiring and ensure the commutators are operating correctly Replace any damaged components 4 Disconnection of p...

Страница 24: ...perating but the fan does not start 1 Check the fan motor the capacitor or the wiring 1 Repair or replace D Control switch is defective incorrectly wired or adjusted 1 Check the control switch connect...

Страница 25: ...or remove refrigerant fluid D Incorrect electric power supply 1 Check the electric power supply 1 Find cause and stabilise the power supply Internal coil frozen A Insufficient refrigerant fluid 1 Chec...

Страница 26: ...he second digit of 7 segment LED indicates that the compressor is on if lit and indicates either the freeze or defrost protection is active if blinking Figure 14 LEDs blinking signals On board setting...

Страница 27: ...SS SVX07B E4 27 Notes...

Страница 28: ...manual is the result of many years of research and continuous development To assist you in obtaining the best use of it and maintaining it in perfect operating condition over a long period of time th...

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