Mamiya C24, C32, C28 manual Installation Initial Lighting

Page 29

INSTALLATION

34 INITIAL LIGHTING

A

B

C

D

E

F

G

Central Heating flow

 

Domestic hot

 

water outlet

Gas inlet

 

Domestic cold

 

water inlet

 

Central Heating return

INSTALLATION

Legend

A Appiance On lamps

B Domestic hot water temperature control

CMain switch and radiator temperature control D Boiler reset button

E Lock---out signal lamp F Programmer (optional)

G System pressure and temperature gauge

IMPORTANT Before lighting the boiler you should note especially that:

1Check that all the drain cocks are closed and any valves in the flow and return are open.

2Check that the system has been filled and pressurised and that the boiler is not air locked.

3Remove boiler front panel.

4Ensure the dust cap on the automatic air vent is open at least one full turn and leave this permanently open

5Ensure that the pump is free to rotate i Remove the vent plug

iiUsing a screwdriver, rotate the shaft several times

iiiReplace the vent plug

Note. Some slight water leakage will occur

6Remove the screw in the burner pressure test point indicated on the following picture and connect a gas pressure gauge via a flexible tube.

Be sure to select the correct pressure test point. Refer to Tables for pressures.

7Check that the gas service cock is ON.

8Switch the electricity supply ON and check that all external controls are calling for heat.

9Set the main switch C to ’ON’. Following a pre---purge period the gas control solenoid valve should open and the spark commence, continuing until the burner is established.

10Check that the burner lights smoothly. If this does not occur within 20 seconds, turn the main switch to ’O’ position, wait for 5 seconds then try again by pressing the reset button ’D’. If the burner still does not light, refer to the ’Fault Finding’ section.

11Test for gas tightness around ALL boiler gas components, using leak detection fluid.

12Operate the boiler for 10 minutes to stabilise the burner temperature.

13Check that the burner pressures are correct. The boiler is factory pre---set and should not need adjustment. However if adjustment is required refer to frame 35.

14Set the boiler main switch to ’O’.

15Remove the pressure gauge and tube. Replace the sealing screw in the pressure test point. Ensure a gas tight seal is made.

16Refit the boiler front panel using the screws previously removed.

17Switch the boiler on again.

mini HE --- Installation & Servicing

29

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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 SupplyHydraulic Loss Remaining pump capacity Mini HE C24, mini HE C28Size of expansion vessel 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 Fitting the Extension Kits Installation Cutting the FlueRing 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 longElectrical Connections For external controls wiring see frameIncoming mains wiring detail Pictorial Wiring Control pcb Installation Functional Flow DiagramElectrical Connections for a Combi Boiler External Electrical ControlsInstallation Initial Lighting Minimum valve setting To Adjust PressuresMaximum 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 ReplacementAIR Pressure Switch Replacement Servicing FAN ReplacementVenturi Replacement Pump Replacement Complete Servicing Electronic CONTROL/IGNITION PCB Replacement Boiler mode setting CH Flow Switch Membrane Replacement Servicing CH Flow Switch ReplacementFlow limiter Servicing DHW Flow Switch ReplacementDHW Filter and Flow Limiter Replacement Recuperator Replacement Servicing Primary Heat Exchanger ReplacementDiverter Valve Internal Parts Replacement Servicing Diverter Valve Actuator ReplacementCH Drain Cock Replacement Servicing DHW Heat Exchanger ReplacementTo replace the condensate trap Condensate Trap ReplacementTo clean the condensate trap and drain 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 TrainingCorrectly Ignition at attempt Installer the contact fire not doesInstaller Water hot or GAS of Escape MaintenanceCleaning Clearances Minimum Lights DiagnosticBoiler the Light to

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.

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