Connecting the manifold to a system
Connect blue hose (1) » compound side of system
•
Connect red hose (2) » pressure side of system
•
Connect yellow hose (5) » vacuum pump
•
Close both valves (3+4)
•
evacuation
Choose vacuum mode on digital manifold
•
Switch on the vacuum pump
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Open both valves (3+4)
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Check pressure on vacuum display
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When the expected vacuum is reached close both valves (3+4)
•
Please note:
The evacuation time may vary depending on the size of a system. A minimal time of 20 minutes must
be observed to evacuate a small to middle sized system.
Charging a system after evacuation
Keep all valves closed (3+4).
•
Disconnect the yellow hose from the vacuum pump and connect this hose to the refrigerant gas cylinder.
•
Open valve from refrigerant gas cylinder.
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Open blue valve (compound side). The system is now being charged with refrigerant. Check the correct quantity
•
of refrigerant with a charging scale (REF-METER from REFCO) and observe the pressure on the compound side.
When the correct filling quantity has been reached close all valves.
•
After the charging process check the pressure on the high pressure and compound side of the unit.
•
Disconnect all hoses from the system.
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Open valves (3+4).
•
Measuring by using the superheat-subcool function
See “connecting the manifold to a system.”
•
Plug in the external temperature sensor (6) into the DIGIMON. (Jack on the left hand side of the shell.)
•
Install temperature probe of the external sensor (6) on the liquid or suction line.
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Choose the applicable refrigerant. (See “Selection of the refrigerant.”)
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Activating display of temperature difference: Press
•
sUPerHeaT/sUBCool
.
Switch between superheat/subcool (liquid/suction line): Hold
•
enTer
and press
sUPerHeaT/sUBCool.
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