Assembly, Commissioning, And Operation; Mounting Fastening Elements W01, W02, W04 And W05; Mounting The Pressure Gauge; Pressure Gauge With Radial Seal - Emerson AVENTICS NL1 Operating Instructions Manual

5 Assembly, commissioning, and operation

Danger of injury if assembled under pressure or voltage!
Assembling when under pressure or electrical voltage can lead to injuries and
damage to the product or system components.
1. Make sure that the relevant system component is without pressure and
voltage before you assemble the product.
2. Protect the system against being restarted.
Sudden pressure increase during commissioning!
The system is exposed to sudden pressure on commissioning if no SSU filling
unit is used! This may result in dangerous erratic cylinder motions.
Please ensure when commissioning a system without a SSU filling unit that
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the cylinders are in their end position or that no danger can emit from
those not in end position.
System is operating under pressure!
Incorrect installation may damage the air preparation unit/apparatus and
cause serious injury.
Before commissioning, check that all connections, ports, and maintenance
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equipment have been correctly installed.

5.1 Mounting fastening elements W01, W02, W04 and W05

Please heed figures g Fig. , g Fig. 11, g Fig. , g Fig. 12, g Fig. 13 and
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g Fig. 15.

5.2 Mounting the pressure gauge

g Fig. 1-I
If a pressure gauge is not mounted, the blanking screw must be
screwed into the pressure regulator and sealed.
The blanking screw must be ordered separately.

5.2.1 Pressure gauge with radial seal

1. Firmly screw the pressure gauge for installation into the pressure gauge
thread until the seal is completely screwed into the thread.
2. Tighten the pressure gauge with an open-end wrench (SW 14) by at least a
1/2 turn and align it visually at the same time.

5.2.2 Pressure gauge with axial (metal) seal

If the pressure gauge was ordered separately, the compression ring is
supplied as a separate part.
1. Mount the compression ring on the pressure gauge.
2. Rotate the pressure gauge into the pressure gauge thread until the compres-
sion ring is flush against the sealing face.
3. Seal off the connection whilst aligning the pressure gauge at the same time by
tightening with max. one turn (open-end wrench SW 14). Max. tightening
torque 7 – 8 Nm
During commissioning
1. Let the product acclimatize for several hours before commissioning, other-
wise, water may condense in the housing.
2. Check that all the electrical and pneumatic connections are allocated or
closed. Only commission fully installed products.
5.3 Adjusting the pressure
g Fig. 2
1. Push up the handwheel (a).
2. Set the required pressure by turning the handwheel (a).
3. Push down the handwheel (a).
This relocks the handwheel.
AVENTICS™ NL1 | NL2 | NL4 | NL6 | R412015552-BAL-001-AE | English
CAUTION
CAUTION
CAUTION
5.4 Lock handwheel
g Fig. 3
The pressure regulator handwheel can be secured by a key to prevent unautho-
rized changing of the pressure setting.

5.4.1 Version with E11 locking

1. To lock handwheel:
Turn key to right and then pull it out.
2. To unlock handwheel:
Turn key to left and then pull it out.
RGP precision pressure regulators and some RGS pressure regulators
permanently release the internal air consumption to the atmosphere.
A leakage noise is emitted during this process.
5.5 Semi- and fully automatic condensate drain
g Fig. 4
Potential impairment of compressed air system by condensate!
In the case of the semi-automatic condensate drain, condensate is only dis-
charged when the reservoir is without pressure. If in operation for an extended
period, the condensate may exceed the maximum filling level and find its way
into the compressed air system. This may result in damage to the compressed
air system.
1. Regularly check the filling level in the reservoir.
2. Drain condensate manually once it reaches the maximum filling level.
3. Do not let the condensate run off into the surroundings.

5.5.1 Semi-automatic condensate drain

g Fig. 4-I
The condensate drain opens and closes depending on operating pressure:
• Pressure < 1.5 bar: drain open
• Pressure > 1.5 bar: drain closed
Set semi-automatic mode:
Open the drain screw by turning it all the way to the left.
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You may leave the screw one turn deep in the thread or remove it completely.
Draining condensate manually
g Fig. 4-III
The condensate can also be manually drained (b = maximum filling level).
1. Turn drain screw (a) all the way to the right (closed position).
2. Turn drain screw (a) to the left a few times until condensate runs out.
5.5.2 Fully automatic condensate drain
g Fig. 4-II
The fully automatic condensate drain is available in versions "open without pres-
sure" and "closed without pressure". In both versions the valve opens automati-
cally as soon as the floater reaches the highest point and closes again when the it
reaches the lowest point.
Version "open without pressure"
The condensate drain opens and closes depending on operating pressure:
• Pressure < 1.5 bar: drain open
• Pressure > 1.5 bar: drain closed
Setting the automatic mode:
Turn the drain screw to the right as far as it will go.
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Version "closed without pressure"
The condensate drain is closed regardless of the operating pressure.
Draining condensate manually
g Fig. 4 -III
The condensate can also be manually drained (b = maximum filling level).
Turn the drain screw (a) to the left as far as it will go.
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CAUTION
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