GENERAL

mini HE

Boiler size

G.C. appliance No.

PI No.

 

(Benchmark No.)

 

mini HE C24

47---348---38

87BQ81

mini HE C28

47---348---39

87BQ81

mini HE C32

47---348---41

87BQ81

Destination countries: GB, IE

CONTENTS

Air supply

9

Benchmark Commissioning Checklist

62

Boiler clearances

6

Boiler exploded view

14

Electrical connections

25

Electrical supply

10

Fault finding

51

Flow wiring diagram

27

Flue fitting

16

Gas conversion

33

Gas safety regulations

7

Gas supply

8

Installation

15

Mandatory requirements

7

Replacement of components

38

Safe handling

7

Servicing

34

Short list of parts

59

Thermostatic radiator valves

12

Water connections

23

Water treatment

9

Wiring diagrams

26

For GB, to comply with Building Regulations Part L1 (Part J in Scotland) the boiler should be fitted in accordance with the manufacturer’s instructions. Self ---certification that the boiler has been installed to comply with Building Regulations can be demonstrated by completing and signing the Benchmark Commissioning Checklist.

BENCHMARK COMMISSIONING CHECKLIST DETAILS

Boiler

Page

Boiler

Page

Make and model

5

Burner operating pressure

measure and record

Appliance serial no. on data badge

14

Central heating flow temp.

measure and record

SEDBUK No. %

4

Central heating return temp.

measure and record

Controls

 

For combination boilers only

 

Time and temperature control to heating

 

28/29

Time and temperature control to hot water

28/29

Heating zone valves

 

N/A

TRV’s

 

12

Auto bypass

 

12

Boiler interlock

 

12

For all boilers

 

 

Flushing to BS.7593

 

9

Inhibitor

 

9

Central heating mode

 

 

Heat input

to be calculated

Scale reducer

12

Hot water mode

 

Heat input

to be calculated

Max. operating burner pressure

measure and record

Max. operating water pressure

measure and record

Cold water inlet temp

measure and record

Hot water outlet temp.

measure and record

Water flow rate at max. setting

measure and record

For condensing boilers only

 

Condensate drain

24

For all boilers: complete, sign & hand over to customer

For assistance see Technical Helpline on the back page

NOTE TO THE INSTALLER: COMPLETE

THE BENCHMARK COMMISSIONING

CHECKLIST AND LEAVE THESE

INSTRUCTIONS WITH APPLIANCE

mini HE --- Installation & Servicing

5

Page 5
Image 5
Mamiya C24, C32, C28 manual Contents, Benchmark Commissioning Checklist Details

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.