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1.With the handles turned
back all the way (valve closed), install the adaptor valve
to the low-pressure side of the gauge
manifold.
2.Connect the charging hose (blue) to
the adaptor valve.
3.Connect the quick joint (for
low-pressure) to the charging hose
(blue).
4.
| caution |
- Use tools that are suited
to R134a.
- To install the quick joint, press
section when connecting, run your hand
along the
hose while pressing to ensure that there
are no bends in the hose.
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Connect the quick joint (for low-pressure) to the
low- pressure service valve.
| note |
The low-pressure service valve
should be connected to the flexible suction
hose.
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5.Close the high and low-pressure valves of
the gauge manifold.
6.
| caution |
Be sure to connect the power
plug of the vacuum pump
to the vacuum pump adapter, and then connect the
power plug of the adapter to a 100-V
outlet.
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Install the vacuum pump adaptor to the vacuum
pump.
7.Connect the charging hose (yellow) to the
R-134a connection port of the vacuum pump
adaptor.
8.Tighten the adaptor valve handle (valve
open).
9.Open the low-pressure valve of the gauge
manifold.
10.Turn the power switch of the vacuum
pump to the ON position.
| note |
Even if the vacuum pump power
switch is turned ON, the vacuum pump will not
operate because
of the power supply connection in step
(6).
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11.
| caution |
Do not operate the compressor
for evacuation.
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Turn the vacuum pump adaptor switch to the R134a
side to start the vacuum pump.
12.Evacuate to a
vacuum reading of 100 kPa or higher (takes approx. 10
minutes).
13.
| caution |
Do not operate the compressor
in the vacuum condition;
damage may occur.
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Loosen the valve of the adapter valve fully (valve
closed), and turn off the vacuum pump
adapter switch. Then leave it for five
minutes.
14.Check the system for proper sealing
(negative pressure should not decrease).
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15.Connect the service can
valve to the service can with the handle loosened fully
(valve
closed).
16.Turn the handle of the adaptor valve
back all the way (valve closed), remove it from
the gauge manifold and install the service
can.
17.Tighten the handle of the charging valve
(valve closed) to puncture the service can.
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18.
| caution |
If the service can is
inverted, liquid refrigerant may be drawn into
the
compressor damaging it by liquid compression.
Keep the service can upright to ensure that
refrigerant
is charged in gas state.
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Turn the handle of the charging valve back (valve
open) and tighten the handle of the
adaptor valve (valve open) to charge the system with
refrigerant.
19.If the refrigerant is not drawn
in, turn the handle of the adaptor valve back all
the way (valve closed).
20.Check for gas leaks
using a leak detector. If a gas leak is detected, re-tighten
the
connections, and then repeat the charging procedure from
evacuation in step (11).
| caution |
The leak detector for R-134a
should be used.
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21.Start the engine.
22.Operate the
A/C and set to the lowest temperature (MAX.
COOL).
23.Fix the engine speed at 1,500
r/min.
24.
| caution |
If the service can is
inverted, liquid refrigerant may
be drawn into the compressor damaging it by
liquid compression. Keep the service can upright
to ensure that refrigerant is charged in gas
state.
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Tighten the handle of the adaptor valve (valve open)
to charge the required volume of
refrigerant.
25.After charging with refrigerant,
turn the handle of the adaptor valve back all the
way (valve closed).
26.Tighten the charging valve
handle (valve closed). Remove the quick joint (for
low-pressure)
from the low-pressure service valve.
27.Remove the
service can.
| note |
If the service can is not
emptied completely, keep the handles of the
charging valve and
adaptor valve closed for the next
charging.
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