10
RRDQ220V1
① Set each valve as above.
② Set Auto Shut-off/Manual Mode Setting to [Auto Shut-off] position.
＊
When using the Auto Shut-off mode, Suction Pressure must be higher than
atmospheric pressure for operation.
③ Set the Power Switch to [ON] position.
Push Start Switch once.
④ Open the suction hose ball valve from the manifold slowly so as not to raise Suction Pressure
suddenly.
⑤ The unit automatically stops when Suction Pressure becomes -0.03MPa (psi).
⑥ Close the suction hose ball valve.
⑦ Set Power Switch to [OFF] position.
⑧ Close high pressure side of the manifold and liquid valve of the cylinder to be recycled.
3）Recycle procedure
Operation time
Suction
Discharge
OPEN
Liquid valve
OPEN
CLOSE
Vapor valve
Cylinder
Manifold
OPEN
Ball valve
OPEN
Suction Valve
RECYCLE
Switching Valve
OPEN
Discharge Valve
OPEN
CLOSE
8
CLOSE
8
CLOSE
Low
pressure side
High
pressure side
OFF
Power
O N
Start
OFF
Power
O N
Auto
Shut-off
Manual
Auto Shut-off
2
ON
3
OFF
7
kg
MED
RESOLUTION
Cy Scale
RRDQ220V1
CLOSE
Vapor valve
Liquid valve
CLOSE
CLOSE
Ball valve
SLOWLY
OPEN
4
CLOSE
6
OPEN
Ball valve
Ball valve
Auto Shut-off
2
◆ Warm up the unit when ambient temperature is under 10℃ .
Refer to page 16 "Warm Up Operation"
◆ A scale must be used to prevent overfilling of cylinder.
CAUTION
◆ When the operation time of the unit has passed 20 hours with Auto Stop Timer, the unit
stops automatically to maintain the recycle performance.
◆ Replace Molecular Sieve Replacement Kit and Filter according to the following
procedure.
① Press Reset Key of Auto Stop Timer once to cancel the automatic stop.
② Close the valve of the manifold and remove the refrigerant in the unit by operating.
[Recycle → Purge operation].
③ Replace Molecular Sieve Replacement Kit and Filter.
④ Restart recycle operation after pressing Reset Key of Auto Stop Timer.
Caution (for Timer)
HOW TO USE
