Mamiya C28, C32, C24 manual General Boiler Water Circuit Diagram

Page 13

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

Image 13
Contents Installation and servicing Mini HE --- Installation & Servicing Document Amendments Boiler Data GeneralPerformance Data --- Central Heating Domestic Hot WaterBenchmark Commissioning Checklist Details ContentsBoiler Clearances General Boiler Water ConnectionIntroduction GAS SafetyOptional Extra Kits Safe HandlingGAS Supply Flue Installation RequirementsSafe Handling of Substances Location of Boiler and Flue OutletWater Treatment Water Circulation SystemAIR Supply Additional PumpsRequirements Electrical SupplySize of expansion vessel Mini HE C24, mini HE C28Hydraulic Loss Remaining pump capacity Domestic HOT Water Requirements General Boiler Control InterlocksGeneral Boiler Water Circuit Diagram Installation Boiler Assembly InstallationPack a contents Installation UnpackingHardware pack contents Pack B contentsFitting the Flue System InstallationRefer to the following diagram for the model mini HE C32 Rear Flue AssemblyTwin Pipe Flue DuctWall Mounting Template rear flue Ring Installation Cutting the FlueFitting the Extension Kits Roof Flue KIT CONTENTS/OPTIONS Installation Fitting the Optional Roof FlueFlue Arrangement Installation Flue Terminal PositionFlue over 3 meters long Assembling the Roof Flue KITFit the service valves, washers and tail pipes as shown Installation Fitting the Wall Mounting PlateMounting the Boiler ConnectionsCondensate Drain Safety Valve DrainLocate the gasket and flue turret on the top of the boiler Flues over 1 meter longIncoming mains wiring detail For external controls wiring see frameElectrical Connections Pictorial Wiring Control pcb Installation Functional Flow DiagramElectrical Connections for a Combi Boiler External Electrical ControlsInstallation Initial Lighting Maximum valve setting To Adjust PressuresMinimum valve setting Commissioning and Testing Anti Cycling SettingElectrical Installation Gas InstallationGeneral Checks Handing Over Installation GAS ConversionServicing Schedule ServicingServicing Removal of Outer and Inner Casing Cleaning the Heat Exchanger Servicing Burner Removal and CleaningRE---ASSEMBLY Burner Pressure CheckRemove the fan by sliding it towards left see the arrow Servicing FAN and Venturi Removal and CleaningBurner Replacement Spark and Detection Electrode ReplacementBurner Injectors Replacement When replacing any componentFlue Temperature Probe Replacement Servicing Overheat Thermostat ReplacementTemperature Probe Replacement Removal of CH temperature probeExpansion Vessel Replacement GAS Valve ReplacementVenturi Replacement Servicing FAN ReplacementAIR Pressure Switch Replacement Pump Replacement Complete Servicing Electronic CONTROL/IGNITION PCB Replacement Boiler mode setting CH Flow Switch Membrane Replacement Servicing CH Flow Switch ReplacementDHW Filter and Flow Limiter Replacement Servicing DHW Flow Switch ReplacementFlow limiter Recuperator Replacement Servicing Primary Heat Exchanger ReplacementDiverter Valve Internal Parts Replacement Servicing Diverter Valve Actuator ReplacementCH Drain Cock Replacement Servicing DHW Heat Exchanger ReplacementTo clean the condensate trap and drain Condensate Trap ReplacementTo replace the condensate trap OFF Normal operationFinding Fault FindingFrom Fault finding Fault Finding Fault Refer back to page 52 of fault finding to continue Fault Finding From 075535 Burner mod. mini HE C28, mini HE C32Fan mod. mini HE C28, mini HE C32 17398422 23 Installer Notification Guidelines GAS Boiler Commissioning Checklist Service Interval Record Ideal boilers Technical TrainingInstaller Water hot or Installer the contact fire not doesCorrectly Ignition at attempt Cleaning MaintenanceGAS of Escape Boiler the Light to Lights DiagnosticClearances Minimum

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.