Refco DIGIMON Manual De Instrucciones página 6

Connecting the manifold to a system
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Evacuation
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Charging a system after evacuation
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Measuring by using the Superheat-Subcool function
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HVAC/R
Service Products
REFCO Manufacturing Ltd.
Industriestrasse 11
CH-6285 Hitzkirch (Switzerland)
Do not attempt to reset/zero the manifold while under pressure or in a
vacuum as incorrect pressure readings will be displayed.
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)
Turn manifold power on.
VAC
Press the VAC button.
Connect hoses.
Switch on the vacuum pump.
Open both valves (3+4).
Check vacuum display.
When the desired vacuum is reached close both valves (3+4).
VAC
Press the VAC button again to quit this function.
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 K-type thermocouple (6) or the clamp thermocouple
K- type (7) into the DIGIMON. (Jack on the right hand side of the shell.)
Install the external K-type thermocouple (6) with an adhesive tape or use
the clamp thermocouple K-type(7) on the liquid or suction line.
Choose the applicable refrigerant. (See "Setting of refrigerant.")
Activating display of temperature difference:
SUPERHEAT/SUBCOOL
Press SUPERHEAT/SUBCOOL .
To switch between superheat/subcool (liquid/suction line): Hold
ENTER ENTER and press SUPERHEAT/SUBCOOL. SUPERHEAT/SUBCOOL
Telefon +41 41 919 72 82
Telefax +41 41 919 72 83
info@refco.ch www.refco.ch
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