gea bock open type compressors f - gafco-altron compressoren gea bock voor... · gea refrigeration...

GEA Refrigeration Technologies

The full range of open type compressors and units

GEA Bock Open Type Compressors F

engineering for a better world

2 | www.gea.com 01/2013 - RT-002-0210-US-EU – 96023-05.2013-Gb Subject to change without notice

GEA Refrigeration Technologies, part of the internationally active GEA Group, is a syn-

onym for industrial refrigeration technology. Since the end of the 19th century, it has been

our business to cool processes and products, and to control the temperature of goods in

transport.

You will find our solutions in the food and beverage sector; in the petrochemical, che-

mical, and pharmaceutical industries; on fishing ships; in natural gas liquefaction; in

infrastructure facilities; and in ice factories. We are also at the top with know-how when

it comes to refrigeration at leisure facilities. After all, we have been excited about refrige-

ration for decades now. As a result, our staff enthusiastically goes about its development

and production projects – to include preventive and remedial maintenance of your refri-

geration systems.

This enthusiasm is highly apparent in the daily work of all companies in our Segment.

Whether it’s complete systems or individual valves: we have the experience in every sec-

tion of our company to optimally design, manufacture, and install refrigeration systems.

And to take full advantage of this experience, we not only carry out development in our

own company: we also manufacture, assemble, and test the core components. A chain is,

after all, only as strong as its weakest link: and this also applies equally well to refrigera-

tion technology, cooling processes, and cooling chains.

This makes it all the more important that you have a partner – in GEA Refrigeration

Technologies – that has learned to master refrigeration from A to Z. And all of this since

1896, when Willem Grasso founded his refrigeration division. From this history of GEA

Refrigeration Technologies, you will profit in the form of technical expertise and top

sector know-how.

But we all live in the present and think about the future. We ponder a future in which

more and more processes need energy around the world, and fewer natural resources are

available. As a result, we have taken it as our goal to create solutions that are not only long-

life and cost-effective, but also energy-saving and environment-protecting. We feel obliga-

ted to sustainability in many respects. Our objective is to produce longlife and material-

saving products over the long run – as well as products that use environmentally benign

refrigerants. And we aim to produce efficiently. But our responsibility does not end at

the factory gate. As a result, we take great pains to ensure that our systems are energy-

efficient and that they protect the climate. With GEA Refrigeration Technologies, you can

also count on optimal economy: saving energy indeed means reducing money spent for

energy. At the same time, you protect the environment. Thanks to our refrigeration tech-

nology, your processes will run more economically and more ecologically. To maintain our

standard of living and to assure quality of life for future generations as well.

Our claim of combining economy with saving natural resources is reflected in all com-

ponents of our company, such as the following: compressors, chillers, heat pumps, ice

machines, fittings and valves, control systems, and many, many more. You can find proof

of the above throughout the world. Our international corporate network – and above all

our reference projects – are spread all over the globe.

In touch with our customers

GEA Refrigeration Technologies:Your partner for low temperatures

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Over 75 years ago, when the refrigeration and air-conditioning

industry was still in its infancy, our company's founder, Wilhelm

Bock, had a vision: He wanted to build first-class and reliable refri-

geration machines. In the following decades Bock developed into

one of the world's leading manufacturers of refrigeration and air-

conditioning compressors.

Today, GEA Bock offers as part of GEA Refrigeration Technologies

the right compressor for all fields of commercial-, industrial-, rail-,

bus- and transport refrigeration.

The F model series provides modern open type compressors for se-

parate drive systems (using V belts or direct couplings) in 7 model

sizes and 10 capacity stages from 10,5 to 282 m³/h. Load transfer

through a V pair.

GEA Bock F compressors are compact, robust and due to their open

type construction they are easy to handle in almost all application

fields of refrigeration technology.

As an alternative to the established F compressor series, a special-

ly modified compressor series F NH3 is available for use with the

refrigerant R 717. The F NH3 series is especially suitable for small

to medium capacities.

No matter what your application is – we offer you the ideal

compressor for your individual demand.

Be inspired. By our new products, our established product series

and the entire passion that goes into each of our products.

GEA Bock - More than a compressor

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GEA Bock Open Type Compressors FSpecial features

Low-wearing long-lifed mechanism

Solid construction and design -

Classic crankshaft construction with hardened surface -

Classic crankshaft construction with carbonated plasma-nitrite -

surface (F18)

Low-friction, wear-resistant plain bearings -

Aluminium pistons with two-ring assembly, -

F14, F16, F18 three-ring assembly, compression ring chromehardened

Aluminium con-rod in divided, screwed design, -

F14, F16, F18 with high-strength small end bearings

Reliable and safe oil supply

Classic lubricating oil circuit with oil pump independent of rotating -

direction

High-volume oil sump -

F14, F16 option of expanding the oil volume by 2.5 litres by raising the -

base plate (accessories)

F14, F16, F18 with connection facility for oil pressure monitoring -

via Δ P oil differential pressure sensor

F14, F16 and F18 with practical oil service valve for clean oil changes -

without intervening in the refrigeration cycle (accessories).

Maximum slant of 30° short-term possible in both axes -

(e.g. marine applications)

8-cylinder drive

Open type 2-, 4-, 6- and 8-cylinder compressors

Compact construction -

Robust - and easy to handle

Suitable for v-belt or coupling drive -

Large number of applications with a wide r.p.m. range -

Naturally with oil pump lubrication -

Universal

e.g. R134a, R404A, R507, R407C, R22 -

One compressor design for all conventional refrigerants, -

for air-conditioning applications, normal or deep-freezing.

Maximum permissible operating pressure: 28 bar

Compressor designs for NH - 3

Compressor designs for CO - 2 on request

Quiet with low vibrations

Large-dimensioned crankshaft area -

Dynamic mass balance -

High volume pressure area to dampen pulsations -

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Special features

Simply constructed fl oating ring seals

Tried and tested construction for decades -

Only one o-ring seal, counter ring designed as the screw-on cover -

With oil washing for cooling and lubricating the whole unit -

Easy to change the shaft seal for maintenance purposes -

F14, F16 and F18 - design with piece of tube for controlled oil drain option

Example: assembly shaft seal F16

only one O-ring seal

practical drain-option via freely

accessible piece of tube

Valve plate construction for safe operation

Universally proven valve design with intake and discharge finger reed valves clamped on one side -

(F14, F16 intake side formed as ring fins)

Valves made out of high-quality, impact-resistant spring steel -

mexxFlow valve system - F18

Valve plate with highly efficient double ring fins -

Fins made out of high-quality, impact-resistant spring steel -

Flow optimized system of valve plate and cylinder head -

mexxFlow by GEA – the new benchmark for effi ciency

With mexxFlow GEA Bock presents in the F18 compressor its new gene-ration of highly effi cient and reliable valve systems for higher refrigerating capacity at a lower power consumption!

Further information is available on www.mexxFlow.com

double ring fins

ring finstongue fins

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GEA Bock Open Type Compressors FSpecial features

Economic performance regulation (accessories)

Blocking of the intake of a cylinder bank with an electromagnetic pilot valve -

Possible regulating steps: -

4-cylinder compressor: 50 % 6-cylinder compressor: 33 % / 66 % 8-cylinder compressor: 25 % / 50 % / 75 %

Continuously variable speed control (up to 60 Hz) via external frequency converter possible -

Full load operation(Principle F14/16)

Partial load operation(Principle F14/16)

Oil sump heater (accessories)

- Design with immersion sleeve

- Changes possible without intervening in the refrigeration cycle

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Special features

Various drive options

Conical shaft end for safe force transmission and exact installation of the drive elements -

Drive via v-belt or coupling, with all the conventional drive sources -

(electric motors, combustible motors, hydraulic motors, etc.)

Coupling bell for quick and easy installation -

direct

Acceptance by classifi cation societies (accessories)

Further classification

societies on request.

belt drive

40 | www.gea.com

GEA Bock Open Type Compressors F NH3

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Based on the F compressor series, a specially modified selection

of compressors is available for use with the refrigerant R 717.

The special features:

2, 4 and 6 cylinder models with displacements of 10 to 180 m³/h (1450 rpm)

Deviations from the basis compressor F:

Pistons with three-ring assembly -

Connecting rod with additional oil supply oil to the small end -

Valve plate with optimized pressure unit -

Shut-off valve with steel connector for welded joints -

All connections are designed as compression joints for steel pipes -

F14 NH3, F16 NH3 with increased oil volume by elevated base plate -

Special oil filling for NH3 (Fuchs Reniso KC 68). If R723 or other oils are used, -

please consult our application engineering department.

You will find further information on the F basis compressors in -

the chapter entitled „F series single-stage compressors“ from page 8 onwards.

At a glance

Type key

Refrigerant

Swept volume 1)

Size

Series

1) Indication only at F14, F16

F 14 / 1166 NH3

Models availableDisplacement (1.450 rpm)

[m³/h]

F2 NH3 10,5

F3 NH3 20,3

F4 NH3 40,5

F5 NH3 73,7

F14 NH3 101,5 / 118,9

F16 NH3 152,2 / 178,4

F18 NH3 in planning stage

The current program

...6 model sizes with 8 capacity stages from 10,5 to 178,4 m³/h (1.450 rpm)

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Operating limits

NH3 Operating limits F2 NH3, F3 NH3, F4 NH3, F5 NH3, F14 NH3, F16 NH3

Unlimited application range

Supplementary cooling necessary (e.g. water-cooled cylinder covers)

tO Evaporating temperature (°C)

tC Condensing temperature (°C)

∆tOh

Suction gas overheating (K)

1) LP = low pressure HP = high pressure

NH3 Notes

Operating limits

Compressor operation is possible within the examples in the diagram

showing the limitations of use. The meaning of the surfaces marked

in colour are to be observed. Limiting areas should not be selected for

layout or continuous operating points.

Performance data

Performance specifications for the NH3 are based on 5 K suction gas

overheating without liquid subcooling. Compressor speed 1450 rpm.

The values can be stated to judge the overall performance at other

speed with the help of the calculation factors below.

For additional technical data for other operating points see GEA Bock

software.

Operation with NH3 and R723

NH3 is a refrigerant traditionally used in industry and largescale

refrigeration systems, as NH3 has considerably more vapouration heat

and thus a larger volumetric refrigerating capacity than most F gases.

That is why operating NH3 at small capacities (< 30 KW, e.g. in the

commercial sector) can be problematic.

NH3 has a high adiabatic index and thus significantly higher pressure

gas temperatures. On one hand, this greatly limits the application ran-

ge with regard to lower temperatures; on the other hand, this requires

thermally highly stable refrigeration oils. Nonsoluable mineral oils with

a viscosity of 68 are used as standard - Fuchs Reniso KC 68. Flooded

operation is customary.

In case of dry expansion, please note that the necessary overheating

in the evaporator results in higher hot gas temperatures. This is why

only low compression ratios are possible and accordingly multi-stage

refrigeration systems are necessary.

Compared to mineral oil, PAO (poly-alpha-olefin) oil has better thermal

and chemical characteristics and higher lubricating properties. For ap-

plications with PAO oil a suitable shaft seal is used in the compressor.

The PAO oil “Fuchs Reniso Synth 68” is approved for these systems.

The compressors can also be operated with R723 (60 % NH3 + 40 %

dimethyl ether). It is recommended to use the oil „Fuchs Reniso Synth

68“. The use of the mentioned PAO oils and the use of R723 have to

be explicity when ordering a compressor.

Maximum permissible operating pressure (LP/HP)1): 19/25 bar

Cooling capacity Q0

Power required P

42 | www.gea.com



Performance data

Based on 5 K suction gas overheatingwithout liquid subcooling

Supplementary cooling necessary

Type Cond.

temp.

°C

Cooling capacity QO [W] Power consumption P [kW]

Evaporating temperature °C

15 10 5 0 -5 -10 -15 -20 -25 -30

F2 NH3

10QP

20QP

30QP

40QP

50QP

F3 NH3

10QP

20QP

30QP

40QP

50QP

F4 NH3

10QP

20QP

30QP

40QP

50QP

F5 NH3

10QP

20QP

30QP

40QP

50QP

NH3 Performance data 1.450 rpm

9670 7740 6080 4690 3520 2570 1,30 1,26 1,19 1,11 1,02 0,94 13700 11200 8920 7020 5400 4050 2940 1,44 1,47 1,45 1,41 1,33 1,24 1,1418700 15500 12600 10200 7970 6140 46101,67 1,77 1,81 1,80 1,75 1,66 1,5417300 14200 11400 9020 7000 2,28 2,32 2,29 2,21 2,0815900 12900 10300 8070 2,99 2,92 2,79 2,61 18700 15000 11800 9050 6800 4970 2,51 2,43 2,31 2,15 1,98 1,81 26500 21600 17300 13600 10500 7820 5680 2,80 2,84 2,82 2,72 2,58 2,40 2,20

36100 29800 24400 19600 15400 11900 89103,24 3,43 3,50 3,48 3,38 3,21 2,9833400 27300 22100 17500 13600 4,42 4,48 4,43 4,28 4,03

30600 24900 19900 15600 5,78 5,65 5,40 5,04 37300 29900 23500 18100 13600 9910 5,02 4,86 4,61 4,30 3,96 3,61 52700 4300 34400 27100 20900 15600 11400 5,58 5,68 5,62 5,44 5,16 4,80 4,4071900 59500 48600 39000 30800 23700 17800 6,47 6,84 6,99 6,96 6,75 6,41 5,9566500 54500 43900 34800 27000 8,83 8,95 8,85 8,54 8,0561100 49600 69700 31200 11,50 11,20 10,70 10,00 67900 54300 42700 32900 24700 18100 9,13 8,84 8,39 7,83 7,21 6,57

95900 78200 62600 49300 37900 28400 20700 10,10 10,30 10,20 9,90 9,39 8,74 8,01131000 109000 88400 71000 55900 43100 32400 11,70 12,40 12,70 12,60 12,20 11,60 10,8012100 99100 79900 63300 49200 16,00 16,30 16,10 15,50 14,60112000 90200 72100 56700 21,00 20,50 19,60 18,30

•

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Performance data

Type Cond.

temp.

°C

Cooling capacity QO [W] Power consumption P [kW]

Evaporating temperature °C

15 10 5 0 -5 -10 -15 -20 -25 -30

F14/1166 NH3

10QP

20QP

30QP

40QP

50QP

F14/1366 NH3

10QP

20QP

30QP

40QP

50QP

F16/1751 NH3

10QP

20QP

60QP

40QP

50QP

F16/2051 NH3

10QP

20QP

30QP

40QP

50QP

NH3 Performance data 1.450 rpm

93500 74800 58800 45300 34000 24900 12,50 12,10 11,50 10,70 9,93 9,05 133000 108000 86300 67900 52200 39100 28400 14,00 14,20 14,10 13,60 12,90 12,00 11,00

181000 149000 12200 97700 77000 59400 44600 16,20 17,10 17,50 17,40 16,90 16,00 14,90167000 137000 111000 87200 67700 22,10 22,40 22,10 21,40 20,10153000 125000 99300 78000 28,90 28,20 27,00 25,20 110000 87600 68900 53100 39900 29100 14,70 14,20 13,50 12,60 11,60 10,60 155000 127000 101000 79500 61100 45800 33300 16,40 16,60 16,50 15,90 15,10 14,10 12,90211000 175000 143000 115000 90200 69500 52200 19,00 20,00 20,50 20,40 19,80 18,80 17,40196000 160000 129000 103000 79300 25,90 26,20 25,90 25,00 23,602180000 146000 117000 91400 33,90 33,10 31,60 29,50 141000 113000 88200 67900 51000 37300 18,80 18,20 17,30 16,10 14,80 13,50 199000 162000 130000 102000 78300 58600 42600 21,00 21,30 21,10 20,40 19,30 18,00 16,50270000 224000 183000 147000 116000 89000 66800 24,30 25,70 26,30 26,10 25,30 24,10 22,30250000 205000 165000 131000 102000 33,10 33,60 33,20 32,00 30,20230000 187000 149000 117000 43,40 42,40 40,50 37,80 165000 132000 104000 79600 59800 43700 22,10 21,40 20,30 18,90 17,40 15,90 233000 190000 152000 120000 91700 68700 49900 24,60 25,00 24,70 23,90 22,70 21,10 19,30317000 262000 214000 172000 136000 105000 78300 28,50 30,10 30,80 30,60 29,70 28,20 26,20293000 240000 194000 154000 119000 38,90 39,40 38,90 37,60 35,40269000 219000 175000 138000 50,80 49,70 47,50 44,30

•

Based on 5 K suction gas overheatingwithout liquid subcooling

Supplementary cooling necessary

44 | www.gea.com



Technical data

F NH3

Type

Number

of

cylinders

Displacement

(1.450 rpm)

Weight Connections 1 Oil

charge

Speed

rangeDischarge line

DV

Suction line

SV

m³/h kg mm mm Ltr. rpm

F2 NH3 2 10,5 18 18 18 0,8 960 - 1450

F3 NH3 2 20,3 28 25 30 1,5 960 - 1450

F4 NH3 4 40,5 51 30 38 2,6 700 - 1450

F5 NH3 4 73,7 85 38 2 x 38 3,8 700 - 1450

F14/1166 NH3 4 101,5 157 49 60 6,3 700 - 1450

F14/1366 NH3 4 118,9 158 49 60 6,3 700 - 1450

F16/1751 NH3 6 152,2 183 49 60 7,5 700 - 1450

F16/2051 NH3 6 178,4 183 49 60 7,5 700 - 1450

1 for welded connections

Oil sump heater: 230 V – 1 – 50/60 Hz

F2 NH3: 40 W (accessories)

F3 NH3: 60 W (accessories)

F4 NH3, F5 NH3: 80 W (accessories)

F14 NH3, F16 NH3: 140 W (accessories)

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4

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Shaft end

F2 NH3

Connections see page 51 -Dimensions for view X see page 51 -

Dimensions in mm

Dimensions and connections

46 | www.gea.com



Shaft end

F3 NH3


Dimensions in mm Connections see page 51 -Dimensions for view X see page 51 -

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2

3

4

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Shaft end

F4 NH3

ca.240

ca

.20

0

4x 11

ca.305

39

8

B

213

ca.450

17

0

130 169

H

DVB1L

SV

A1

A

C/E

K

F

G

D

D1

210

240

25

ca

.42

5

X



Dimensions in mm

Centre of gravity

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Shaft end

F5 NH3

8xM10 Ø150

6xM8 Ø72

A5x9 DIN 6888

1:5

Ø9

0

2

x3

0

40

Ø

50

100

53

M1

2

Ø1

70

h8


Dimensions in mm Connections see page 51 -Dimensions for view X see page 51 -

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4

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Shaft end

F14 NH3 F14/1166 NH3 F14/1366 NH3

2

12xM10

1:5

210

8xM8 111

53,5

50

50

94

M12x26

13

0h

8

A5x9 DIN 6888



Dimensions in mm

50 | www.gea.com



Shaft end

F16 NH3 F16/1751 NH3 F16/2051 NH3

290 143,5

305ca.

ca.2

95

290

L

A

SV

DV

D

X

342

363 170

ca.580

B2

B1

B

F

G

K

CD1H

ÖV1

E

A1

B

Y Y

ca.515

20

320

25

0

50

2

52

058

5ca

.

4x 13,5


Dimensions in mm

Centre of gravity Connections see page 51 -Dimensions for view X see page 51 -

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2

3

4

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View X,Y

- Oil sight glass- Connection facility for parallel operation

Position view X:F2 NH3, F3 NH3, F4 NH3, F5 NH3, F14 NH3, F16 NH3

4 hole sight glass

Position view Y:F14 NH3, F16 NH3

Second oil sight glass can be attached as accessories(available as original equipment only)

1) Compression joint for steel pipes

2) Second sight glass can be attached, Positioning view Y (accessories, only as original equipment)

Connections F2 NH3 F3 NH3 F4 NH3 F5 NH3 F14 NH3 F16 NH3

SV

DV

Suction line

Discharge lineplease refer to technical data page 44

AConnection suction side,

not lockable- Ø 6 mm 1) Ø 6 mm 1) Ø 6 mm 1) 1/

8 " NPTF 1) 1/

8 " NPTF 1)

A1Connection suction side,

lockableØ 6 mm 1) Ø 6 mm 1) Ø 6 mm 1) Ø 6 mm 1) Ø 6 mm 1) Ø 6 mm 1)

BConnection discharge side,

not lockable1/

8 " NPTF Ø 6 mm 1) Ø 6 mm 1) Ø 6 mm 1) 1/

8 " NPTF 1/

8 " NPTF

B1Connection discharge side,

lockableØ 6 mm 1) Ø 6 mm 1) Ø 6 mm 1) Ø 6 mm 1) Ø 6 mm 1) Ø 6 mm 1)

B2Connection discharge side,

not lockable- - - - Ø 6 mm 1) Ø 6 mm 1)

CConnection oil pressure

safety switch OIL- Ø 6 mm 1) Ø 6 mm 1) Ø 6 mm 1) Ø 6 mm 1) Ø 6 mm 1)

DConnection oil pressure

safety switch LP- Ø 10 mm 1) Ø 6 mm 1) Ø 6 mm 1) Ø 6 mm 1) Ø 6 mm 1)

D1Connection oil return

from oil separatorØ 10 mm 1) Ø 10 mm 1) Ø 10 mm 1) Ø 10 mm 1) Ø 10 mm 1) Ø 10 mm 1)

EConnection

oil pressure gauge- Ø 6 mm 1) Ø 6 mm 1) Ø 6 mm 1) Ø 6 mm 1) Ø 6 mm 1)

F Oil drain R 3/8 " M 22 x 1,5 M 22 x 1,5 M 22 x 1,5 M 26 x 1,5 M 26 x 1,5

G Oil sump heater plug R 3/8 " M 22 x 1,5 M 22 x 1,5 M 22 x 1,5 M 22 x 1,5 M 22 x 1,5

H Oil charge plug Ø 10 mm 1) Ø 10 mm 1) M 22 x 1,5 M 22 x 1,5 M 22 x 1,5 M 22 x 1,5

K Sight glass 4 Loch M 6 4 Loch M 6 4 Loch M 6 4 Loch M 6 4 Loch M 6 2) 4 Loch M 6 2)

LConnection thermal

protection thermostat1/

8 " NPTF 1/

8 " NPTF 1/

8 " NPTF 1/

8 " NPTF 1/

8 " NPTF 1/

8 " NPTF

ÖV1 Oil service valve (accessories) - - - - Ø 6 mm 1) Ø 6 mm 1)

4 x M6, 10 mm deep

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Scope of supply

Scope of supply F2 NH3 F3 NH3 F4 NH3 F5 NH3 F14 NH3 F16 NH3

Open type compressor for NH3 with

suction and discharge shut-off valve

Two cylinder, cylinder arrangement in row

Four cylinder, cylinder arrangement in V

Six cylinder, cylinder arrangement in W

Seat front bearing flange

1 Shaft seal with piece of tube for controlled oil collection

Oil pump

Oil charge: FUCHS Reniso KC 68 1) 1) 1) 1) 1) 1)

Sight glass

Decompression valve

2 Elevated base plate (oil volume plus 2,5 litres)

Inert gas charge

Shaft seal with piece of tube

1

1) If R723 or other oils are used, please consult our application engineering department

Elevated base plate

2

1

2

3

4

5

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Accessories

Accesories F2 NH3 F3 NH3 F4 NH3 F5 NH3 F14 NH3 F16 NH3

1 Oil sump heater 220-240 V - 1 - 50/60 Hz

2 Compressor flywheel 1) 1) 1) 1) 1) 1)

3 Shaft coupling for direct drive 1) 2) 1) 2) 1) 2) 1) 2) 1) 2) 1) 2)

4 Capacity regulator 230 V - 1 - 50/60 Hz, IP65

1 capacity regulator = 50 % residual capacity

Capacity regulator 230 V - 1 - 50/60 Hz, IP65

1-2 capacity regulator = 66/33 % residual capacity

5 Start unloader 230 V - 1 - 50/60 Hz, IP65, without check valve,

including thermal protection thermostat (bimetal sensor)

6 Thermal protection thermostat (bimetal sensor)

7 Oil pressure safety switch MP 55A for NH3

230 V - 1 - 50/60 Hz, IP20 1) 1) 1) 1) 1)

Oil service valve

8 Two additional sight glasses (both-sided), positioning view Y 3) 3)

9 Water-cooled cylinder covers

Sea water resistant water-cooled cylinder covers

1) Enclosure

2) Please state motor Ø and feather key groove dimensions when ordering shafts

3) Available as original equipment only

Compressor flywheel

F2 NH3: Ø 165,2 x SPA

F3 NH3: Ø 210,2 x SPA

F4 NH3: Ø 210,3 x SPA

F5 NH3: Ø 230,4 x SPA

F14 NH3: Ø 322 x SPB

F16 NH3: Ø 322 x SPB

Capacity regulator Start unloader

Oil pressure safety switch

Shaft coupling

F2 NH3: WK 42.44

F3 NH3: WK 42.44

F4 NH3: WK 70.40

F5 NH3: WK 70.40

F14 NH3: WK 190.50

F16 NH3: WK 190.60

Water-cooled cylinder coversThermal protection thermostat Sight glass

1 2

3

6 97 8

4

Oil sump heater

F2 NH3: 40 Watt

F3 NH3: 60 Watt

F4 NH3: 80 Watt

F5 NH3: 80 Watt

F14 NH3: 140 Watt

F16 NH3: 140 Watt

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