Kaden Installation Manual |
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8. Leak Testing and
Evacuation
MC
MC
Leak, pressure test and
evacuation
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).
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 familiarize yourself
with how to use them properly.
1. Connect the charge hose of the manifold gauge to service
port on 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.
Manifold Gauge
Compound gauge
Low pressure valve
High pressure
valve
Pressure hose /
Charge hose
Charge hose
Vacuum
pump
Pressure gauge
Low pressure valve
Fig. 6.1
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