Installation; Operating - Rothenberger NITROGEN-KIT Instrucciones De Uso

2.3

Installation

Connecting the pressure regulator to the bottle
Rotate the regulating knob anti-clockwise in order to be sure that the pressure regulator
valve is closed.
Replace the gasket when it is damaged or if it has been lost.
Make sure that the valve connection on the bottle is clean.
Screw the valve input connection of the bottle, fixing it well.
Successively, connect the flexible hose (3) and the hose with valve and the check pressure
gauge (4) and valve closed.
Opening
Rotate clockwise very slowly the regulating knob in order to reach the desired value of the
output pressure. The output pressure gauge on the regulator will indicate the value.
If the valve is opened too fast, this may damage the gauges.
Slowly open the valve on the bottle: the high pressure gauge will indicate the pressure inside
the bottle (only for bottles from 5 - 10 L)
Make sure that all connections are correctly made.
The output pressure must not, be higher than the pressure necessary for the
operation to be performed and must never rise above the red pointer on the regu-
lator low pressure gauge.
Before opening the bottle valve, make sure that the regulator is open (rotate the
regulating knob anti-clockwise).
Regulating the pressure
To increase the pressure: slowly rotate the regulating knob clockwise.
To lower the pressure: slowly rotate the regulating knob anti-clockwise.
Closing
Close the bottle valve and disconnect the 950cc cartridge.
Have the gas discharged until zero setting of the regulator pressure gauges. Rotate the
regulating knob anti-clockwise until complete closing.
2.4

Operating

1. Tightness test in pressure and checking for leaks with an electronic or a spray leak
detector
Before performing any test. A pressure to high may cause serious damage to
persons and to the equipment on which you operate. Differently, a pressure to low
may be useless for reaching the pre-established goals.
Check the correct test pressure (supplied by the manufacturer of the system or of the
component).
Introduce a few gramms of refrigerant (10 - 20 g according to the dimensions of the system)
before the system's pressurization. Use the same type of refrigerant as the one the system
is working with.
After the starting and after having checked the correct test pressure, connect the kit to the
system on which you operate (open ball valve on the hose with (4) pressure gauge).
By means of the regulator regulating valve, slowly reach the test pressure wanted.
Close the intermediate ball valve on the hose. Superimpose the red pointer to the pressure
gauge (4) pointer and let the whole for about 5-15 seconds (according to the dimensions of
the system) in this condition.
During these seconds, check the tightness by means of an electronic leak detector (XL-1A,
Art.-No. 0873.01, XP-1A, Art.-No. 0873.02 (not available in Germany) if refrigerant has been
charged or by means of special detectors in the areas of possible leaks.
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