
ROU250
ROU250
en
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8
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Operation
6.2
Purging Procedure
1.
Close the ports of the system being serviced that
are connected to the input port of the machine.
2.
Turn off the recovery machine.
3.
Turn the Input valve to the PURGE position.
4.
Turn the MODE valve to the PURGE position.
5.
Restart the machine.
6.
Run until desired vacuum is achieved.
7.
Close the ports on the recovery tank and the
machine.
8.
Turn the machine off.
9.
Return the MODE valve to the RECOVER position.
10.
Disconnect and store all hoses and dry filter.
6.3
Liquid push/pull procedure
Push/pull procedure only works with large systems where
the liquid refrigerant is no less than 6.8kg (15lbs.).
1.
Turn MODE valve knob to RECOVER.
2.
Open OUTPUT valve.
3.
Open INPUT valve.
4.
When the scale stops rising, close all ports.
5.
Switch off the machine.
CAUTION:
CAUTION:
CAUTION:
CAUTION:
When using the
When using the
When using the
When using the
“
“
“
“
Push/pull
Push/pull
Push/pull
Push/pull
”
”
”
”
method, a scale must
method, a scale must
method, a scale must
method, a scale must
be used to avoid over filling the storage tank, once the
be used to avoid over filling the storage tank, once the
be used to avoid over filling the storage tank, once the
be used to avoid over filling the storage tank, once the
siphon
siphon
siphon
siphon is started, it can continue and overfill the
is started, it can continue and overfill the
is started, it can continue and overfill the
is started, it can continue and overfill the
storage tank even if
storage tank even if
storage tank even if
storage tank even if the tank is equipped with a
the tank is equipped with a
the tank is equipped with a
the tank is equipped with a float
float
float
float
level
level
level
level sensor. The siphon can
sensor. The siphon can
sensor. The siphon can
sensor. The siphon can continue even when the
continue even when the
continue even when the
continue even when the
machine is turned off. You must
machine is turned off. You must
machine is turned off. You must
machine is turned off. You must manually close the
manually close the
manually close the
manually close the
valves on the tank and the unit to prevent
valves on the tank and the unit to prevent
valves on the tank and the unit to prevent
valves on the tank and the unit to prevent overfilling of
overfilling of
overfilling of
overfilling of
the recovery tank
the recovery tank
the recovery tank
the recovery tank
Summary of Contents for ROU250
Page 1: ...MAHLE ROU250 EN Operation Manual Recovery Only Unit...
Page 13: ...ROU250 en 13 System Kits 8 5 ROU250 Complete Kit R1234yf R134a With Tank P N 460 80425 00...
Page 15: ...ROU250 en 15 Schematics 9 Schematics 9 1 Electrical Schematic...
Page 16: ...Notes ROU250 ROU250 en 16 Schematics 9 2 Flow Schematic...
Page 18: ...Notes ROU250 en 18 Notes ROU250 en 18 Notes...
Page 19: ...ROU250 en 19 Parts Diagram...