Denso Movincool CLIMATE PRO K60 Service Manual page 86

Charging the System with R-410A Refrigerant
Avoid working near flammable materials. Working near flammable materials may cause
explosion or fire. Refrigerant may generate toxic gas if it comes into contact with an open
flame or heated metal.
4. Checking gas leak
a) Remove the charging hose from the
vacuum pump and connect the hose to the
refrigerant cylinder.
b) Loosen the nut on the gauge manifold side
of the charging hose.
c) Open the valve of refrigerant cylinder and
perform air purging in the charging hose.
Then tighten the nut
d) Open the high pressure valve of the gauge
manifold. Charge the system with refrigerant
until the low pressure gauge indicates 57 psi
(390 kPa). After charging is complete, close
the high pressure valve.
e) Open the valve of refrigerant cylinder and
perform air purging in the charging hose.
Then tighten the nut.
f) Check for gas leaks with a gas leak detector.
g) Repair any leak.
5. Evacuation (repeat)
a) Close the valve of the refrigerant cylinder,
remove the charging hose and connect
the hose to the vacuum pump. Keep the
high and low pressure valves of the gauge
manifold closed.
b) Follow the procedure "Evacuation" on
page 85. Perform evacuation twice or
more to completely remove air or moisture
in the system before charging refrigerant.
WARNING
Valve Setting
LO HI
Closed Closed
Air Purging
Red Hose
Closed
Low Pressure
Valve (Closed)
Cylinder
Valve
(Open)
Gauge
Low Pressure
Valve
86
Open Valve
Charging Hose
Valve Setting
LO HI LO HI
Open Gauge Reading Closed Closed
57 psi
(390 kPa)
Open High Pressure
Valve
Process Tube Fitting
High Pressure
Side Tube
Valve Setting
LO HI LO
Closed Open Closed
30 inHg (100 kPa) or larger
High Pressure Gauge
High Pressure Valve
High Pressure
Side Tube
HI
Closed