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  |  Kaden Installation Manual

8.  Leak testing and evacuation

Leak, pressure test and evacuation

The interconnecting pipe work and indoor unit must be 
pressure tested at 1000kpa and leak tested before being 
evacuated. Before using the manifold gauge and vacuum 
pump, read their operation manuals to familiarise yourself  
with how to use them properly.

Fig. 8.1

1.  Connect the charge hose of the manifold gauge to the 

outdoor unit’s low pressure valve.

2.  Connect another charge hose from the manifold gauge  

to the vacuum pump.

3.    Monitor test pressure and check with a leak detector  

and bubble solution. Safely release the test pressure.

4.   Open the Low pressure side of the manifold gauge.  

Keep the High pressure side closed. 

5.  Turn on the vacuum pump to evacuate the system.

6.   Evacuate the interconnecting pipes to <=500 microns.

7.   Close the low pressure side of the manifold gauge,  

and turn off the vacuum pump.

8.   Wait for 5 minutes, then check that there has been no 

change in system vacuum. 

9.   If the vacuum does not settle, repeat from Step 1 of  

Leak, pressure test and evacuations. If there is no  
change in system vacuum, unscrew the cap from the 
packed valve (high pressure valve).

MC

MC

Manifold gauge

Compound gauge 

-76cmHg

Low pressure valve

Pressure hose/ 

charge hose

Pressure gauge

High pressure valve

Charge hose

Vacuum 

pump

Low pressure 

valve

Summary of Contents for KD Series

Page 1: ...Installation Manual DUCTED AIR CONDITIONER KD Series KD24...

Page 2: ...2 Kaden Installation Manual...

Page 3: ...npipe installation 18 Note on drainpipe installation 18 7 Refrigerant piping connection 20 Safety precautions 20 Note on pipe length and elevation 20 Refrigerant piping connection instructions 21 Note...

Page 4: ...qualified licensed personnel should install service or carry out maintenance to this air conditioning unit All electrical work is to follow local and national wiring standards and the Installation Man...

Page 5: ...ng unit contains fluorinated gases For specific information on the type of gas and the amount please refer to the relevant label on the unit itself 2 Installation decommissioning service maintenance a...

Page 6: ...may result in water leakage electrical shock and re or cause the equipment to fail Name Shape Quantity Tubing and fittings Soundproof insulation sheath 2 Cooling and heating Drain joint 1 Seal ring 1...

Page 7: ...n summary Install the indoor unit page 8 Install the outdoor unit page 15 Install the drainpipe page 18 Connect the wires page 26 Leak test and evacuation page 24 Connect the refrigerant pipes page 20...

Page 8: ...ture is too weak the unit may fall causing personal injury unit and property damage or even death CAUTION Install the indoor and outdoor units cables and wires at least 1m from televisions or radios t...

Page 9: ...room There is no direct radiation from heaters It is embedded installation CAUTION Do not install unit in the following locations Where oil drilling or fracking is taking place Coastal areas with hig...

Page 10: ...unit 1 Please refer to the following diagrams to locate the four positioning screw bolt holes on the ceiling Be sure to mark the places where you will drill ceiling hook holes B Air outlet dimensions...

Page 11: ...g the main body When choosing where to start determine the direction of the pipes to be drawn out Especially in cases where there is a ceiling involved align the refrigerant pipes drain pipes and indo...

Page 12: ...according to the following diagram Air outlet Air inlet Air dust filter Checking orifice Flexible tie in Isolation booth Fig 4 11 5 Refer to the following static pressure guidelines when installing t...

Page 13: ...er mesh fit it into the flange as illustrated in the following figure Fig 4 14 Note All the figures in this manual are for demonstration purposes only The air conditioner you have purchased may be sli...

Page 14: ...e off the ventilated panel 2 Take off the blower housing 3 Take off the motor Motor Blower housing Ventilated panel Fig 4 16 Pump maintenance 1 Remove four screws from the drain pump 2 Unplug the pump...

Page 15: ...e length between the outdoor and indoor unit may not exceed the maximum allowable pipe length If possible do not install the unit where it is exposed to direct sunlight If possible make sure the unit...

Page 16: ...nit dimensions W x H x D Mounting dimensions Distance A Distance B 946mm x 810mm x 410mm 673mm 403mm NOTE The minimum distance between the outdoor unit and walls described in the installation guide do...

Page 17: ...g heating mode Fig 5 9 If the drain joint doesn t come with a rubber seal See Fig 5 9 B do the following 5 Insert the drain joint into the hole in the base pan of the unit The drain joint will click i...

Page 18: ...ection with an additional protection tube This prevents it from pulling loose The drainpipe should slope downward at a gradient of at least 1 100 to prevent water from owing back into the air conditio...

Page 19: ...e the ground If it touches the ground the unit may become blocked and malfunction If you discharge the water directly into a sewer make sure that the drain has a U or S pipe to catch odours that might...

Page 20: ...ury Ventilate the area immediately if there is refrigerant leakage during the installation Leaked refrigerant gas is both toxic and ammable Ensure there is no refrigerant leakage after completing the...

Page 21: ...d outdoor units have been installed Insulate both the gas and liquid piping to prevent water leakage Step 1 Cut pipes When preparing refrigerant pipes take extra care to cut and flare them properly Th...

Page 22: ...in the right direction because you can t put them on or change their direction after flaring See Fig 7 5 Fig 7 5 4 Remove PVC tape from ends of pipe when ready to perform flaring work 5 Clamp flare f...

Page 23: ...e Make sure the pipe is properly connected Over tightening may damage the bell mouth and under tightening may lead to leakage Note on minimum bend radius Carefully bend the tubing in the middle accord...

Page 24: ...detector and bubble solution Safely release the test pressure 4 Open the Low pressure side of the manifold gauge Keep the High pressure side closed 5 Turn on the vacuum pump to evacuate the system 6 E...

Page 25: ...tch the pressure gauge for one minute to make sure that there is no change in pressure The pressure gauge should read slightly higher than atmospheric pressure 3 Remove the charge hose from the servic...

Page 26: ...ll wiring and piping is completed Make sure that you do not cross your electrical wiring with your signal wiring This may cause distortion and interference To prevent distortion when the compressor st...

Page 27: ...n a Using wire strippers strip the rubber jacket from both ends of the signal cable to reveal about 15cm of the wire b Strip the insulation from the ends of the wires c Using a wire crimper crimp the...

Page 28: ...atic adjustment CAUTION Do not adjust the dampers when automatic airflow adjustment is active After 3 to 6 minutes the air conditioning unit stops operating once automatic airflow adjustment has finis...

Page 29: ...280 224 168 10 SP1 SP2 SP3 SP4 STATIC PRESSURE pa SP1 SP2 SP3 SP4 STATIC PRESSURE pa SP1 L SP1 M SP1 H SP1 L SP1 M SP1 H SP2 L SP2 M SP2 H SP2 L SP2 M SP2 H SP4 L SP4 M SP4 H SP4 L SP4 M SP4 H SP3 L S...

Page 30: ...ion and with grounding resistance tester Grounding resistance must be less than 4 During test run Check for electrical leakage During the test run use an electroprobe and multimeter to perform a compr...

Page 31: ...s on the wired control and the display panel on the indoor unit work properly d Ensure the manual buttons on the indoor unit works properly e Check to see that the drainage system is unimpeded and dra...

Page 32: ...AUTO FORCED COOL OFF FORCED COOL mode In FORCED COOL mode the Operation light flashes The system will then turn to AUTO after it has cooled with a high wind speed for 30 minutes The remote control wil...

Page 33: ...9 Other twins model malfunction 10 Off E9 10 Overload protection 1 On F0 11 Outdoor temperature sensor error 2 On F1 12 Outdoor condenser pipe sensor error 3 On F2 13 Discharge air temperature sensor...

Page 34: ...34 Kaden Installation Manual...

Page 35: ...Kaden Installation Manual 35...

Page 36: ...kadenair com au...

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