Mamiya C28, C32, C24 manual Anti Cycling Setting, Commissioning and Testing, Electrical Installation

Page 31

INSTALLATION

ABC D E

12Press and hold the reset button D for about 10 seconds until the lock---out signal lamp E blinks.

13Press the reset button D repeatedly (4 times) until the lamps A give the follow indication:

Where:

Lamp ON

 

 

Lamp OFF

14Turn the DHW temperature control B to the minimum (fully counterclockwise) and then on the position noted on step 10. By turning the control B the lock---out signal lamp E blinks quickly (2 per second) indicating that the setting has changed and must be memorized.

15To memorize the setting press and hold the reset button D for about 5 seconds until the lamps A briefly blink simultaneously.

16To reset the boiler to the normal operation turn it off and on by the main switch C checking the ignition pressure and that the burner lights up uniformly. The boiler automatically resets to its normal operation after 10 minutes if the above reset operation is not performed.

INSTALLATION

36 ANTI CYCLING SETTING

The lamps A will flash a number of times corresponding to the

It is possible to set the minimum delay time that must pass

setting.

4 To change the setting turn the DHW temperature control B

between two ignitions of the burner in c.h. function mode.

to a position corresponding to the desired delay. By

1 Turn the boiler on positioning the main switch C as follow:

turning the control B, the lock---out signal lamp E blinks

 

 

 

quickly (2 per second) indicating that the setting has

 

 

 

 

 

 

changed and must be memorized.

ABC D E

2Press and hold the boiler reset button D for about 10 seconds until the lock---out signal lamp E blinks

3The lamps A should give the indication as in next figure (reignition frequency). If not, press the reset button D repeatedly to obtain it.

Where:

Lamp ON

 

 

Lamp OFF

At this time it is possible to determine the current setting by keeping the reset button D pressed for more than 5 seconds.

 

 

3

 

4

5 1/2

 

 

 

3

4

 

 

 

 

5

 

 

 

 

 

 

1 1/2

 

 

 

7

2

 

 

6

0

1

 

 

7

8 1/2

 

 

 

 

 

 

Delay (minutes)

 

 

B

 

 

 

Setting No.

5To memorize the setting press and hold the reset button D for about 5 seconds until the lamps A briefly blink simultaneously.

6To reset the boiler to the normal operation turn it off and on by the main switch C. The boiler automatically resets to its normal operation after 10 minutes if the above reset operation is not performed.

The factory setting anti cycling time is 3 minutes.

37 COMMISSIONING AND TESTING

The benchmark Logbook or equivalent self certification should be completed and signed to demonstrate compliance with Building Regulations.

A. Electrical Installation

Checks to ensure electrical safety should be carried out by a competent person.

ALWAYS carry out the preliminary electrical system checks, i.e. earth continuity, polarity, resistance to earth and short circuit, using a suitable test meter.

B. Gas Installation

1The whole of the gas installation, including the meter, should be inspected and tested for tightness and purged in accordance with the recommendations of BS. 6891. In IE refer to I.S. 813:2002.

2Purge air from the gas installation by loosening the gas cock union and purge until gas odour is detected.

3Retighten the union and test for gas tightness.

WARNING. Whilst effecting the required gas tightness test and purging air from the gas installation, open all windows and doors, extinguish naked lights and DO NOT SMOKE.

mini HE --- Installation & Servicing

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Contents Installation and servicing Mini HE --- Installation & Servicing Document Amendments Domestic Hot Water GeneralBoiler Data Performance Data --- Central HeatingBenchmark Commissioning Checklist Details ContentsBoiler Clearances General Boiler Water ConnectionSafe Handling GAS SafetyIntroduction Optional Extra KitsLocation of Boiler and Flue Outlet Flue Installation RequirementsGAS Supply Safe Handling of SubstancesAdditional Pumps Water Circulation SystemWater Treatment AIR SupplyRequirements 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 B contents Installation UnpackingPack a contents Hardware pack contentsFitting the Flue System InstallationFlue Duct Rear Flue AssemblyRefer to the following diagram for the model mini HE C32 Twin PipeWall 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 KITConnections Installation Fitting the Wall Mounting PlateFit the service valves, washers and tail pipes as shown Mounting the BoilerFlues over 1 meter long Safety Valve DrainCondensate Drain Locate the gasket and flue turret on the top of the boilerIncoming 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 Gas Installation Anti Cycling SettingCommissioning and Testing Electrical InstallationGeneral Checks Handing Over Installation GAS ConversionServicing Schedule ServicingServicing Removal of Outer and Inner Casing Burner Pressure Check Servicing Burner Removal and CleaningCleaning the Heat Exchanger RE---ASSEMBLYRemove the fan by sliding it towards left see the arrow Servicing FAN and Venturi Removal and CleaningWhen replacing any component Spark and Detection Electrode ReplacementBurner Replacement Burner Injectors ReplacementRemoval of CH temperature probe Servicing Overheat Thermostat ReplacementFlue Temperature Probe Replacement Temperature Probe ReplacementExpansion 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 173984 Burner mod. mini HE C28, mini HE C32075535 Fan mod. mini HE C28, mini HE C3222 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.
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