Denso Movincool CLIMATE PRO K60 Service Manual page 87

Charging the System with R-410A Refrigerant
6. Checking gas leak
a) Remove the charging hose from the vacuum
pump and connect it to the refrigerant
cylinder.
b) Loosen the nut on the gauge manifold side of
the charging hose and open the valve of the
refrigerant cylinder. After air purging, tighten
the nut and close the valve of the refrigerant
cylinder.
c) Securely place the refrigerant cylinder on a
scale with a weighing capacity of 70 lb (30 kg)
that is graduated to 0.2 oz (5 g).
d) Open the high pressure valve of the gauge
manifold and the valve of the refrigerant
cylinder. Charge the system with refrigerant
to the specified amount.
Amount of Refrigerant: 3.97 lb (1.8 kg)
Note:
If the ambient temperature is low or the amount
of refrigerant in the cylinder is low, you may need
to place a warm blanket around the cylinder
or place it in the sun to increase the cylinder
pressure.
e) Close the high pressure valve of the gauge
manifold and the valve of the refrigerant
cylinder.
Note:
Refrigerant disposal must be conducted according
to all official laws and regulations in your state/city.
7. Removal of gauge manifold
a) Crimp the pinch-off tube with a pinch-off tool.
b) Remove the gauge manifold and the process
tube fitting. Crush the end of the pinch-off
tube.
c) Braze the end of the pinch-off tube.
d) Ensure that a gas leak is not present at the
pinched off portion and the brazed end.
Note:
Follow the standard gauge manifold procedure.
After repairing the leaks, evacuate the system
once more and check vacuum.
Valve Setting
LO HI
Closed Closed
Air Purging
Red Hose
Valve Setting
LO HI
Closed Open
Valve of
Cylinder
Pinch-Off Tube
To Refrigerant
Cycle Side
87
Open Valve
Charging Hose
Specified Amount
LO HI
of Refrigerant Closed Closed
High Pressure Valve
Process Tube Fitting
High Pressure
Side Tube
Weight
Pinch-Off Tool
To Gauge
Manifold Side
Charging Hose
Process Tube Fitting