Mamiya C32, C28, C24 manual General Boiler Water Connection, Boiler Clearances

Page 6

GENERAL

1BOILER WATER CONNECTION

 

 

400

Wall

 

 

mounting

 

 

 

Plate

 

 

 

31

 

50

257

 

 

 

35

16

 

 

 

803

700

 

 

 

 

 

 

 

Condensate

 

 

 

 

 

drain

 

 

 

 

 

connection

 

 

 

 

 

area

(3 1/4”)

(2 9/16”)

(2”)

(2 1/2”)

 

(2 9/16”)

83

65

52

64

 

65

CH flow

hot outlet

Gas inlet

 

cold inlet

CH return

 

DHW

 

 

DHW

 

Pipe size

O.D. mm

 

 

CH flow

22

 

 

CH return

22

 

 

Gas inlet

22

 

 

DHW cold inlet

15

 

 

DHW hot outlet

15

 

 

2BOILER CLEARANCES

All dimensions in mm (in.)

The following minimum clearances must be maintained for operation and servicing. Additional space will be required for installation, depending upon site conditions.

200 (7

7/8”)

 

25 (1”)

50 (2”)

200 (7 7/8”)

Bottom clearance

The bottom clearance, after installation, can be reduced to 20mm. However, 200mm must be available for servicing.

Front clearance

The minimum front clearance when built into a cupboard is 50mm (2”) from the cupboard door. However 450mm

(17 3/4”) overall clearance is still required, with the cupboard door open, to allow for servicing.

Side and Rear Flue

a. Provided that the flue hole is cut accurately, e.g. with a core drill, the flue can be installed from inside the building where wall thickness does not exceed 600 mm (24”).

Where the space into which the boiler is going to be installed is less than the length of flue required the flue must be fitted from the outside.

installation from inside ONLY

b. If a core boring tool is to be used inside the building the space in which the boiler is to be installed must be at least wide enough to accommodate the tool.

273 (10 3/4”)

127 (5”)

190

(7 1/2”)

 

 

95 (3 3/4”)

 

6

mini HE --- Installation & Servicing

Image 6
Contents Installation and servicing Mini HE --- Installation & Servicing Document Amendments Performance Data --- Central Heating GeneralBoiler Data Domestic Hot WaterContents Benchmark Commissioning Checklist DetailsGeneral Boiler Water Connection Boiler ClearancesOptional Extra Kits GAS SafetyIntroduction Safe HandlingSafe Handling of Substances Flue Installation RequirementsGAS Supply Location of Boiler and Flue OutletAIR Supply Water Circulation SystemWater Treatment Additional PumpsElectrical Supply RequirementsMini HE C24, mini HE C28 Size of expansion vesselHydraulic Loss Remaining pump capacity General Boiler Control Interlocks Domestic HOT Water RequirementsGeneral Boiler Water Circuit Diagram Installation Installation Boiler AssemblyHardware pack contents Installation UnpackingPack a contents Pack B contentsInstallation Fitting the Flue SystemTwin Pipe Rear Flue AssemblyRefer to the following diagram for the model mini HE C32 Flue DuctWall Mounting Template rear flue Installation Cutting the Flue RingFitting the Extension Kits Installation Fitting the Optional Roof Flue Roof Flue KIT CONTENTS/OPTIONSInstallation Flue Terminal Position Flue ArrangementAssembling the Roof Flue KIT Flue over 3 meters longMounting the Boiler Installation Fitting the Wall Mounting PlateFit the service valves, washers and tail pipes as shown ConnectionsLocate the gasket and flue turret on the top of the boiler Safety Valve DrainCondensate Drain Flues over 1 meter longFor external controls wiring see frame Incoming mains wiring detailElectrical Connections Pictorial Wiring Installation Functional Flow Diagram Control pcbExternal Electrical Controls Electrical Connections for a Combi BoilerInstallation Initial Lighting To Adjust Pressures Maximum valve settingMinimum valve setting Electrical Installation Anti Cycling SettingCommissioning and Testing Gas InstallationGeneral Checks Installation GAS Conversion Handing OverServicing Servicing ScheduleServicing Removal of Outer and Inner Casing RE---ASSEMBLY Servicing Burner Removal and CleaningCleaning the Heat Exchanger Burner Pressure CheckServicing FAN and Venturi Removal and Cleaning Remove the fan by sliding it towards left see the arrowBurner Injectors Replacement Spark and Detection Electrode ReplacementBurner Replacement When replacing any componentTemperature Probe Replacement Servicing Overheat Thermostat ReplacementFlue Temperature Probe Replacement Removal of CH temperature probeGAS Valve Replacement Expansion Vessel ReplacementServicing FAN Replacement Venturi ReplacementAIR Pressure Switch Replacement Pump Replacement Complete Servicing Electronic CONTROL/IGNITION PCB Replacement Boiler mode setting Servicing CH Flow Switch Replacement CH Flow Switch Membrane ReplacementServicing DHW Flow Switch Replacement DHW Filter and Flow Limiter ReplacementFlow limiter Servicing Primary Heat Exchanger Replacement Recuperator ReplacementServicing Diverter Valve Actuator Replacement Diverter Valve Internal Parts ReplacementServicing DHW Heat Exchanger Replacement CH Drain Cock ReplacementCondensate Trap Replacement To clean the condensate trap and drainTo replace the condensate trap Normal operation OFFFault Finding FindingFrom Fault finding Fault Finding Fault Refer back to page 52 of fault finding to continue Fault Finding From Fan mod. mini HE C28, mini HE C32 Burner mod. mini HE C28, mini HE C32075535 17398422 23 Installer Notification Guidelines GAS Boiler Commissioning Checklist Service Interval Record Technical Training Ideal boilersInstaller the contact fire not does Installer Water hot orCorrectly Ignition at attempt Maintenance CleaningGAS of Escape Lights Diagnostic Boiler the Light toClearances 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.