Hitachi RAS-3HVRNM2, Инструкция по установке и обслуживанию, Страница: 31 / 58

TC-12001 2-103
OUTDOOR UNIT
P5414950-rev.1 27
< Operation of Stop Valves >
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1P
1P
Outdoor Unit
1 Spindle Valve 2
)ODUH1XW
3 Cap
4 Check Joint for
Service Port
Gas
/LTXLG
Gas
/LTXLG
Gas
/LTXLG
Gas
/LTXLG
3HP 9-11 7-9 68-82 34-42 33-42 33-42 14-18 14-18
4-7HP 7-9 68-82 34-42 20-25 33-42 14-18 14-18
(mm)
Outdoor Unit Gas
/LTXLG
3HP 5 4
4-7HP 4
O
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View from P
P
O S O S
Spindle Type
Ball Type
Spindle Valve
Counterclockwise...Open
Clockwise...............Close
Tighten securely the cap
Position to
Apply Spanners
Perform the work after warming the spindle part by a dryer
etc. when controlling the stop valve in an cold area.
(O-ring of the spindle part will harden at the low
temperature and the refrigerant leakage may occur.)
Use securely two spanners at the following
position when removing or installing the pipe.
If not, refrigerant leakage will occur.
Do not apply
two spanners
work here.
Spindle Type
Ball Type
• This valve is opened or closed with
rotating 90 degrees at the ball valve part.
• Rotate the shaft until the pin
touches the stopper. Do not apply the
extra force. Use a slotted screwdriver
to control the shaft.
• Do not leave the ball valve partly open.
O-ring
(Rubber)
Refrigerant Pipe
(Only the charging hose
Check Joint
(Only the charging hose
Check Joint
Do not apply
two spanners
work here.
Position to
Apply Spanners
Shaft
Pin
Stopper
Refrigerant Pipe
(To open or close the
Hexagonal Wrench
Closed before shipment
Tighten the cap with 37N-m.
Refrigerant Pressure
Refrigerant
Pressure
Use the JIS based.
Refer the hexagonal wrench
size in the following table.
(Attach the cap after the work.)
Tighten the cap according
to the following torque.
can be connected.)
spindle valve)
Tighten the cap according
can be connected.)
to the following torque.
(Attach the cap after
the work.)
according to the torque.
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Spindle Valve 1
Flare Nut 2
Charge Port Cap 4
Cap 3
Cap 3
Flare Nut 2
Charge Port
Cap 4
Shaft (Stem)
(Do not apply any torque
to rotating direction.)