GEA Bock F76 Series Bedienungsanleitung

GEA Bock F76

F76/1570 FX76/1570

F76/1800 FX76/1800

F76/2050 FX76/2050

F76/2425 FX76/2425

Assembly instructions

96438-02.2020-Gb

Translation of the

original instructions

96438-02.2020-DGbRu

About these instructions

Read these instructions before assembly and before using the compressor. This will avoid misunder-

standings and prevent damage. Improper assembly and use of the compressor can lead to serious

or fatal injury.

Observe the safety instructions contained in these instructions.

These instructions must be passed onto the end customer along with the unit in which the compres-

sor is installed.

GEA Bock GmbH

72636 Frickenhausen

GEA Bock GmbH

Benzstraße 7

72636 Frickenhausen

Germany

Telephone +49 7022 9454-0

Fax +49 7022 9454-137

gea.com

gea.com/contact

Manufacturer

Contact

96438-02.2020-DGbRu

Contents Page

1 Safety 4

1.1 Identication of safety instructions

1.2 Qualications required of personnel

1.3 Safety instructions

1.4 Intended use

2 Product description 6

2.1 Short description

2.2 Name plate

2.3 Type code

3 Areas of application 8

3.1 Refrigerants

3.2 Oil charge

3.3 Operating limits

4Compressor assembly 10

4.1 Storage and transport

4.2 Setting up

4.3 Maximum permissible inclination

4.4 Pipe connections

4.5 Pipes

4.6 Start unloader (external)

4.7 Laying suction and discharge lines

4.8 Operating the shut-off valves

4.9 Operating mode of the lockable service connections

4.10 Drive

5 Commissioning 16

5.1 Preparations for start-up

5.2 Pressure resistance test

5.3 Leak test

5.4 Evacuation

5.5 Refrigerant charge

5.6 Shaft seal

5.7 Start-up

5.8 Avoiding slugging

5.9 Oil separator

6 Maintenance 19

6.1 Preparation

6.2 Work to be carried out

6.3 Spare parts recommendation

6.4 Shaft seal change

6.5 Excerpt from the lubricant table

6.6 Decommissioning

7 Accessories 20

7.1 Oil sump heater

7.2 Capacity regulator

7.3 Elevated base plate

8 Technical data 23

9 Dimensions and connections 24

10 Declaration of incorporation 26

11 Service 27

96438-02.2020-DGbRu

1.1 Identication of safety instructions

1|Safety

1.2 Qualications required of personnel

WARNING Inadequately qualied personnel poses the risk of accidents, the

consequence being serious or fatal injury. Work on compressors

is therefore reserved for personnel which is qualied to work on

pressurized refrigerant systems:

• For example, a refrigeration technician, refrigeration mechatronic engi-

neer. As well as professions with comparable training, which enables

personnel to assemble, install, maintain and repair refrigeration and

air-conditioning systems. Personnel must be capable of assessing the

work to be carried out and recognising any potential dangers.

DANGER Indicates a dangerous situation which, if not avoided,

will cause immediate fatal or serious injury.

WARNING Indicates a dangerous situation which, if not avoided,

may cause fatal or serious injury.

CAUTION Indicates a dangerous situation which, if not avoided,

may cause fairly severe or minor injury.

ATTENTION Indicates a situation which, if not avoided,

may cause property damage.

INFO Important information or tips on simplifying work.

96438-02.2020-DGbRu

These assembly instructions describe the standard version of the compressor named in the title

manufactured by GEA Bock. GEA Bock refrigerating compressors are intended for installation in a

machine (within the EU according to the EU Directives 2006/42/EC Machinery Directive, 2014/68/EU

Pressure Equipment Directive).

Commissioning is permissible only if the compressor has been installed in accordance with these as-

sembly instructions and the entire system into which it is integrated has been inspected and approved

in accordance with legal regulations.

The compressors are intended for use in refrigeration systems in compliance with the limits of

application.

Only the refrigerant specied in these instructions may be used.

Any other use of the compressor is prohibited!

1.4 Intended use

1.3 Safety instructions

WARNING Risk of accidents.

Refrigerating compressors are pressurised machines and as such

call for heightened caution and care in handling.

The maximum permissible overpressure must not be exceeded,

even for testing purposes.

Risk of burns!

- Depending on the operating conditions, surface temperatures of

over 60 °C on the discharge side or below 0 °C on the suction side

can be reached.

- Avoid contact with refrigerant necessarily.

Contact with refrigerant can cause severe burns and skin

damage.

WARNING The compressor may not be used in potentially explosive

environments!

1|Safety

96438-02.2020-DGbRu

2|Product description

6-cylinder open type compressor for external drive (V-belt or coupling)

with oil pump lubrication

2.1 Short description

Fig. 1

Fig. 2

Transport eyelet

Discharge

shut-off valve

Cylinder cover

Valve plate

Suction

shut-off valve

Leak oil

drain hose

Shaft end

Shaft seal

Base plate

Dimension and connection values can be found in Chapter 9.

Name plate

Oil pump

Sight glass

96438-02.2020-DGbRu

F76 2425

Fig. 3

2.3 Type code (example)

¹) X - Ester oil charge (HFC refrigerant R134a, R404A/R507, R407C)

Swept volume

Size

Oil charge ¹)

Series

2.2 Name plate (example)

FX76/2425

500 72,8

261,9

BC12756A001

SE55

19/28

GEA Bock GmbH

72636 Frickenhausen, Germany

Observe the limit of

application diagrams!

1 Type designation

2 Machine number

3 Rotation speed minimum with a corresponding displacement

4 Rotation speed maximum with a corresponding displacement

5 ND(LP): Max. admissible operating pressure Suction side

HD(HP): Max. admissible operating pressure

High-pressure side

6 Oil type charged at factory

2|Product description

96438-02.2020-DGbRu

3|Areas of application

The compressors are lled with the following oil type at the factory:

- for R134a, R404A/R507, R407C FUCHS Reniso Triton SE 55

- for R22 FUCHS Reniso SP 46

Compressors with ester oil charge (FUCHS Reniso Triton SE 55) are marked with an X in the type

designation (e.g. FX76/2425).

3.1 Refrigerants

• HFKW / HFC: R134a, R404A/R507, R407C

• (H)FCKW / (H)CFC: R22

3.2 Oil charge

INFO For refilling, we recommend the above oil types.

Alternatives: see lubricants table, Chapter 6.4

ATTENTION The correct oil level is shown

in Figure 4.

Damage to the compressor

is possible if overfilled or

underfilled!

max.

min.

1.3 Ltr.

oil level

Fig. 4

3.3 Operating limits

ATTENTION Compressor operation is possible within the operating limits shown

in the diagrams. Please note the signicance of the shaded areas.

Thresholds should not be selected as design or continuous operat-

ing points.

- Permissible ambient temperature (-20 °C) - (+60 °C)

- Max. permissible discharge end temperature: 140 °C

- Max. permissible switching frequency: Please refer to the

instructions of the engine manufacturer.

- A minimum running time of 3 min. steady-state condition

(continuous operation) must be achieved.

Avoid continuous operation near the threshold.

For operation with supplementary cooling:

- Use only oils with high thermal stability.

For operation with capacity regulator:

- The suction gas superheat temperature may need to be reduced

or set individually when operating near to the threshold.

When operating in the vacuum range, there is a danger of air

entering on the suction side. This can cause chemical reactions, a

pressure rise in the condenser and an elevated compressed-gas

temperature. Prevent the ingress of air at all costs!

96438-02.2020-DGbRu

R134a

Fig. 5

R404A/R507

Fig. 6

R407C

Fig. 7

R22

Fig. 8

>10K

3.3 Operating limits

Unlimited

application range

Reduced suction gas

temperature

Evaporating temperature (°C)

Condensing temperature (°C)

Suction gas superheat (K)

Suction gas temperature (°C)

Permissible rotation speeds:

500 - 1800 rpm

Maximum permissible

operating pressure

(LP/HP)1): 19/28 bar

Design for other

areas on request

1) LP = Low pressure

HP = High pressure

3|Areas of application

96438-02.2020-DGbRu

Fig. 11

4|Compressor assembly

INFO New compressors are factory-lled with inert gas. Leave this ser-

vice charge in the compressor for as long as possible and prevent

the ingress of air. Check the compressor for transport damage

before starting any work.

4.1 Storage and transport

Use transport eyelet.

Do not lift manually!

Use lifting gear with sufcient load capacity!

Transport and suspension unit on the eyebolt (Fig. 11).

Storage at (-30 °C) - (+70 °C), maximum permissible relative

humidity 10 % - 95 %, no condensation

Do not store in a corrosive, dusty, vaporous atmosphere or in a com-

bustible environment.

Fig. 10

Fig. 9

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