Refco DIGIMON Bedienungs- Und Wartungsanleitung Seite 4

Connecting the manifold to a system
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Evacuation
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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
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Measuring by using the Superheat-Subcool function
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Refrigeration
Service Products
and Components
REFCO Manufacturing Ltd.
Industriestrasse 11
CH-6285 Hitzkirch (Switzerland)
Connect blue hose (1)
Connect red hose (2)
Connect yellow hose (5)
Close both valves (3+4)
Choose vacuum mode on digital manifold
Switch on the vacuum pump
Open both valves (3+4)
Check pressure on vacuum display
When the expected vacuum is reached close both valves (3+4)
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.
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.
Open valves (3+4).
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.
Choose the applicable refrigerant. (See "Selection of the refrigerant.")
Activating display of temperature difference: Press SUPERHEAT/SUBCOOL .
Switch between superheat/subcool (liquid/suction line): Hold ENTER
and press SUPERHEAT/SUBCOOL. SUPERHEAT/SUBCOOL
compound side of system
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pressure side of system
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vacuum pump
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Telefon +41 41 919 72 82
Telefax +41 41 919 72 83
Info@refco.ch www.refco.ch
SUPERHEAT/SUBCOOL
ENTER