4.9 Service procedure
Maintenance
When required
WA470-6H – VEAM946100
4-49
Check air conditioner
Check level of refrigerant (gas)
WARNING
If the refrigerant of the conditioner system gets into your eyes or
on your hands, it may cause loss of sight or frostbite. Do not
touch the refrigerant. Never loosen any part of the refrigerant cir-
cuit. Do not bring any flame close to any point where the refriger-
ant gas is leaking.
1. Start the engine and set the engine speed to approx. 1500 rpm.
2. Press main power switch (1) of the air conditioner to turn the
power ON.
3. Press fan switch (2) and set the air flow to “Hi“.
4. Press temperature control switch (3) to set the temperature
to the lowest setting.
5. Open the door and window fully.
6. Press air conditioner switch (4) to turn the air conditioner
switch ON.
7. Use sight glass (6) (inspection window) of receiver drier (5)
to check the condition of the refrigerant gas (freon 134a)
flowing in the refrigerant circuit.
A: Quantity of refrigerant
B: Condition of sight glass
a: Proper:
After air conditioner switch is turned ON, few bubbles are
seen and refrigerant becomes milk-white and then becomes
pale milk-white.
b: Insufficient refrigerant:
After air conditioner switch is turned ON, bubbles are seen
continuously.
X: Condition of refrigerant flow
Y: Condition of sight glass
x: There are bubbles:
Gas and liquid of refrigerant are mixed.
y: There are not bubbles:
All refrigerant is liquefied and transparent.
z: Refrigerant is milk-white:
Oil and refrigerant are separated from each other and their
mixture is pale milk-white.
GK047038
GK047038
GK047039
2
4
1
3
GK038106
5
6
Содержание WA470-6 2006
Страница 2: ......
Страница 3: ...Foreword WA470 6H VEAM946100 1 1 1 Foreword...
Страница 22: ...1 5 Contents Foreword 1 20 WA470 6H VEAM946100 7 Index 7 1 7 1 Index 7 2 8 Notes 8 1...
Страница 28: ...1 7 CE Conforming equipment Foreword 1 26 WA470 6H VEAM946100...
Страница 250: ...3 7 Troubleshooting Operation 3 178 WA470 6H VEAM946100...
Страница 340: ...4 9 Service procedure Every 12000 hours service Maintenance 4 90 WA470 6H VEAM946100...
Страница 341: ...Technical Data WA470 6H VEAM946100 5 1 5 Technical Data...
Страница 343: ...Technical Data 5 1 Technical data WA470 6H VEAM946100 5 3 GK032301 A B H I G C E F D...
Страница 348: ...5 4 Limit values for slopes Technical Data 5 8 WA470 6H VEAM946100...
Страница 381: ...Index WA470 6H VEAM946100 7 1 7 Index...
Страница 387: ...Notes WA470 6H VEAM946100 8 1 8 Notes...
Страница 388: ...Notes 8 2 WA470 6H VEAM946100...
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