GEA Grasso 5 Bedienungsanleitung

Reciprocating compressors for industrial

refrigeration

GEA Grasso V

Installation and Maintenance instructions (Original text)

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means of printing, photocopying, microfilm or otherwise without prior written

consent of GEA.

This restriction also applies to the corresponding drawings and diagrams.

LEGAL NOTICE

This publication has been written in good faith. However, GEA cannot be held

responsible, neither for any errors occurring in this publication nor for their

consequences.

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SYMBOLS USED

Danger

Stands for an immediate danger leading to severe physical injuries or death.

► Description for avoiding the danger.

Warning!

Stands for a potentially dangerous situation leading to severe physical

injuries or death.

► Description for avoiding the dangerous situation.

Caution!

Stands for a potentially dangerous situation which could lead to minor

physical injuries or damage to property.

► Description for avoiding the dangerous situation.

Notice

Stands for important information that must be observed for the intended use

and function of the product.

► Description of the required action for the intended function of the product.

SAFETY INSTRUCTIONS

Hint!

This manual must be careful read and understood prior to installing

and servicing the compressor (package)

Safety

This manual is written with great care, but the contractor/installer is held

responsible to examine this information and to take care of possible additional

and/ or deviated safety measures.

Safety instructions

It is the task of the contractor/installer to inform and explain to his client the

operation of the compressor (Package).

Do respect all federal, state or local safety regulations/legislations during

installing, connecting and operating this compressor (package).

Construction changes

Warning!

In compliance with the regulations of the Pressure Equipment

Directive it is mandatory that no changes be made to the construction

of pressurised parts such as the crankcase housing, suction filter

housing etc.

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Installer oriented information

The compressor (package) is filled with nitrogen to prevent penetration of

moisture. Therefore, keep the compressor closed until the compressor (package)

is being installed.

Never store the compressor filled with compressed air. Compressed air contains

moisture that will corrode the inside and working components of the compressor.

To store the compressor, fill it with dry nitrogen after fully evacuating it.

Warning!

The compressor, oil filters, oil lines, etcetera, are not filled with oil.

Pre-lubrication is obligatory. Refer Section 4.7, Page 61

Hint!

After the successful initial run of the compressor (package) the

warranty chart must be filled in and returned to Grasso. A warranty

chart is attached to each compressor.

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PREFACE

General

1. All documentation can be downloaded via our web site.

2. GEA technical manuals includes “generic paragraphs”; this means that it can

occur that not all data as described is relevant for the current compressor

series as mentioned in this manual. (For instance, not all compressor series

are suitable for all mentioned refrigerants or not all compressor series

includes two-stage compressors)

Directives

Equipment is based on Pressure Equipment Directive (PED 2014/68/EU)

regulations and according to Machine Directive (MD 2006/42/EG) regulations.

The applied standards are:

NEN-EN-IEC 60204, NEN-EN-ISO 12100, NEN-EN-ISO 13857, NEN-EN 378

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CYLINDER NUMBERING, BOOSTER AND SINGLE-STAGE OPERATION

Cylinder numbering

Fig.1: Example cylinder numbering 6 cylinder compressor

Booster or single-stage operation

1. Booster operation applies if condensing temperature < +5 oC

2. Single-stage operation applies if condensing temperature >= +5 oC

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GENERAL INFO

Main setup data

Description

Value

Remark

Grasso V 300 (T) .. V 600 (T) Grasso V 700 (T) .. V 1800 (T)

General limits of operation

Caution!

Refer to Product Information Section 4.2, Page 51

Start frequency max. 6 starts per hour

The NO-solenoid has to be

de-energised 20 seconds

after starting the compressor

motor to enabel the motor to

reach the minimum speed and

the compressor to develop the

required oil pressure.

Time interval between stopping

and re-starting min. 2 minutes

Time interval between starting

and re-starting min. 10 minutes

Time interval between loading

and unloading min. 3 minutes

For continuous minimum part-

load (i.e. more than 30

minutes) consult Grasso.

Adjust the steps between up

and down loading, in such a

way that the system is running

stable.

Oil level 25-75% crankcase sight glass

Control oil pressure suction pressure + 8 bar (g)

Lubricating oil pressure

difference between 1.3 and 4.5 bar Setting approx. 2.0 bar (g)

After a mimimum of 15 minutes

running time at an oil

temperature of approx. 50 oC

Superheat >0 K

Oil discharge - running in -

filter

Factory mounted; to be replaced after max. 100 running hours by “normal” oil discharge filter

element

Oil discharge filter Supplied loose; replacement for factory mounted running in filter

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