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

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Image 29
Mamiya C24, C32, C28 manual Installation Initial Lighting

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.

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