Manuals / Mamiya / Household Appliance / Boiler

Mamiya C32, C28, C24 Servicing Overheat Thermostat Replacement, Flue Temperature Probe Replacement

Models: C28 C24 C32

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SERVICING

52OVERHEAT THERMOSTAT REPLACEMENT

1Remove outer and inner casing (refer to frame 42).

2 Remove the screws A and the plate B.

B

A

3Disconnect the wiring C .

4Remove the spring D which holds the overheat thermostat on the pipe of the primary heat exchanger and remove it.

C

D

5Re---assemble in reverse order.

6Apply an adequate quantity of heat conducting compound between the pipe and the thermostat.

SERVICING

53FLUE TEMPERATURE PROBE REPLACEMENT

1Remove outer and inner casing (refer to frame 42).

2Disconnect the wires from the flue temperature probe.

3Unscrew the steel temperature probe adaptor A (complete with the temperature probe) from the recuperator.

4Ensure the probe is positioned as shown with the metal sheath end level with the brass fixing nut B.

BA

5Ensure that on the probe, the length C that enters the recuperator is 18 mm.

C

6Fit the new probe/adaptor assembly into the recuperator and re---assemble in reverse order.

A

54TEMPERATURE PROBE REPLACEMENT

1Disconnect the electrical supply.

2Remove the front and right hand side casing panels (refer to frame 42).

Removal of CH temperature probe

3To remove the CH temperature probe close off the isolating cocks of the CH circuit at the bottom of the boiler.

4Release system pressure by opening the main circuit drainage cock.

Do not release CH pressure using the pressure relief valve. It may cause debris within the system to foul the valve.

Removal of DHW temperature probe

3To remove the DHW temperature probe close off the isolating cock of the DHW circuit at the bottom of the boiler.

4Empty the DHW circuit.

Replacement

5Disconnect the leads from the probe to be replaced and unscrew it .

6Screw in the new probe, using a new gasket, reconnect and re---assemble in reverse order.

CH temperature

DHW temperature

 

probe

probe

Drainage cock

 

 

mini HE --- Installation & Servicing

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Mamiya C32 Servicing Overheat Thermostat Replacement, Flue Temperature Probe Replacement, Removal of CH temperature probe
Page 38 Page 40

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.