Refrigerant charge

 

Unit : ft (mm)

 

 

Refrigerant charge

 

Length of refrigerant Pipe

Additional refrigerant

connected to Indoor/

 

outdoor unit

 

 

 

6.6-50

None

(2-15m)

 

 

 

50-66

Add 0.22oz/ft (20g/m) of

Refrigerant for piping that exceeds

(15-20m)

50ft (15m) up to 66ft (20m)

 

 

 

*Caution during addition of refrigerant Max. amount of additional refrigerant is 0.22 lbs (100g).

Charge the refrigerant accurately. Overcharging may cause serious trouble with the compressor.

*Minimum refrigerant pipe is 6.6ft (2m).

Using pipe shorter than that may cause a malfunction of the compressor or other devices.

10-6-2. Power supply Connection and Connecting Cable

∙The power supply shall be connected to the outdoor unit by 3 wires.

∙The connecting cable between the indoor unit and outdoor unit is 4 wires.

This cable provides the power for the indoor unit and the communication signal between the outdoor unit and indoor unit.

∙Consult local building codes, NEC (National Electrical Code) or CEC (Canadian Electrical Code) for special requirements.

∙The following are the electrical requirements.

Product

FCU

RAS-15LKV-UL

RAS-22LKV-UL

Model

RAS-17LKV-UL

 

 

 

 

 

 

 

 

 

CDU

RAS-15LAV-UL

RAS-22LAV-UL

Item

RAS-17LAV-UL

 

 

 

 

 

 

 

 

Max. Current.

 

12.0A

 

13.5A

 

 

 

 

Fuse / Circuit Breaker of main

15A

 

power supply

 

 

 

 

 

 

 

 

 

 

 

 

Connect to

CDU

 

 

FCU/CDU

 

 

 

 

 

Power supply cord

 

 

 

 

No. of Core

3 (L1, L2, )

 

(Not provide)

 

 

 

 

 

 

Size

AWG14

 

 

 

 

 

 

Inter connecting

No. of Core

4 (L1, L2, S,

)

cable between

 

 

 

 

FCU & CDU

Size

AWG14

 

(Not provide)

 

 

 

 

 

FILE NO. SVM-10020

10-7. OTHERS

10-7-1. Gas Leak Test

Valve cover

Check places for ßare nut connection (indoor unit)

Check the ßare nut connections for the gas leak with a gas leak detector or soap water.

Check places for the outdoor unit.

Fig. 10-7-1

10-7-2. Test Operation

To switch the TEST RUN (COOL) mode, press RESET button for 10 seconds. (The beeper will make a short beep.)

RESET

RESET button

Fig. 10-7-2

10-7-3. Auto Restart Setting

This product is designed so that, after a power failure, it can restart automatically in the same operating mode as before the power failure.

Information

The product was shipped with Auto Restart function in the on position. Turn it off as required.

10-7-4. How to cancel the Auto Restart

1.Press and hold the RESET button on the indoor unit for 3 seconds to cancel the operation. (3 beep sound but OPERATION lamp does not blink)

2.Press and hold the RESET button on the indoor unit for 3 seconds to set the operation. (3 beep sound and OPERATION lamp blink 5 time/sec for 5 seconds)

· Do not operate ON timer and OFF timer3

Note : Default setting of auto restart operation is OK

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