GENERAL

7

BOILER WATER CIRCUIT DIAGRAM

7

Central heating flow cock

 

 

 

 

 

 

8

By ---pass valve

34

35

24

 

 

 

9

Central heating (CH) return cock

 

 

 

10

3 bar pressure relief valve

 

 

 

 

 

 

 

 

25

 

 

 

11

Gas cock

 

 

23

 

 

 

12

Expansion vessel

 

 

 

 

 

 

13

Gas valve inlet pressure tap

 

21

22

 

 

 

14

Modulating gas valve

 

 

 

 

15

Burner pressure tap

20

 

 

 

 

27

 

 

 

16

Flame detection electrode

 

 

 

 

 

17

Ignition electrodes

 

 

 

 

 

1

 

19

 

 

 

18

Burner

 

33

 

 

 

 

18

28

 

 

 

19

Combustion chamber

 

 

 

 

20

Primary heat exchanger

 

29

 

 

 

 

 

 

 

 

 

 

 

 

 

21

Fan

17

16

26

 

 

 

 

 

 

22

Air pressure switch

36

15

30

 

 

 

 

 

 

23

Venturi device

 

 

 

 

 

 

 

14

31

5

2

 

24

Flue outlet pipe

 

 

12

 

25

Air intake pipe

 

 

 

 

 

37

13

10

 

 

 

26

Automatic air vent

 

 

 

 

 

 

27

Overheat thermostat

 

 

8

 

 

32

28

Pump

 

 

6

 

4

3

29

Pump vent plug

 

11

9

7

30

CH temperature probe

 

 

 

 

 

 

1 Domestic hot water (DHW) heat exchanger

 

 

31

CH flow switch

 

 

32

DHW temperature probe

2 Domestic hot water (DHW) flow switch

 

 

 

33

CH circuit temperature/pressure gauge

3 Domestic hot water (DHW) outlet pipe

 

 

 

34

Recuperator

4 Domestic cold water inlet cock

 

 

 

35

Flue temperature probe

5 Three---way diverter valve

 

 

 

36

Condensate trap

6 Main circuit drainage cock

 

 

 

37

Condensate drain pipe

mini HE --- Installation & Servicing

13

Page 13
Image 13
Mamiya C28, C32, C24 manual General Boiler Water Circuit Diagram

C28, C24, C32 specifications

The Mamiya C series is celebrated among photography enthusiasts for its unique twin-lens reflex (TLR) design, offering both a classic aesthetic and innovative features that set it apart in the world of medium format cameras. The C32, C24, and C28 models represent a range of technology and design advancements that cater to various shooting needs.

The Mamiya C32, introduced in the early 1970s, is renowned for its precision engineering and versatility. This model features interchangeable lenses, allowing photographers to switch between different focal lengths for creative flexibility. The camera supports 120 and 220 film formats, enabling higher film capacities for extended shooting sessions. An essential feature of the C32 is its built-in light meter, which enhances exposure accuracy by providing real-time readings. The camera's bright waist-level finder offers excellent viewing comfort and composition aid, attracting those who appreciate a more hands-on shooting experience.

Next in line, the Mamiya C24 offers a slightly more compact and lighter design, making it an appealing option for documentary and street photographers. While still featuring the electronic leaf shutter system utilized in the C32, the C24 omits built-in metering, which encourages users to develop their exposure skills. The lens selection remains robust, with options ranging from wide-angle to telephoto, allowing for creative versatility. The C24's rugged build quality and reliable shutter performance make it a trusted companion in various shooting conditions.

Lastly, the Mamiya C28 provides a perfect blend of portability and advanced capabilities. With its ergonomic design and improved lens coatings, the C28 offers enhanced image quality with better contrast and sharpness. Similar to its predecessors, it utilizes an interchangeable lens system but enhances user convenience through quick-to-use shutter speeds and aperture settings. The camera is also compatible with a range of accessories, such as flash units and close-up attachments, further expanding its creative potential.

In summary, the Mamiya C32, C24, and C28 each present unique features and technological advancements that cater to various types of photographers. Whether it's the precision of the C32, the compact convenience of the C24, or the versatile performance of the C28, these cameras maintain a special place in the hearts of medium format enthusiasts, showcasing the blend of craftsmanship and innovation that Mamiya is known for.