Bosch GREENSTAR II HE OIL 12/22 Service Manual download pdf (Page 18)

11.1 After unpacking the appliance it is recommended that the

top and front cabinet panels are removed, as described in Section

5, and stored in a safe place to avoid damage during installation

and allow easy inspection for any leaks after the system has

been filled.

11.2 Remove the burner as described below and store in a safe

place until the appliance is ready for commissioning.

1. Remove the air tube from the burner by loosening the jubilee

clip and pulling the tube up and away.

2. Remove the 13mm nut at the top of the burner and pull the

burner out, taking care not to put any tension on the electrical

cable.

11.3 Flue system installation.

Install the appliance flue system as described in Section 7.

11.4 Heating system installation.

Before the appliance is fitted to the heating system

flush the system and mains water supply.

1. Plumb the boiler into the central heating system.

2. Check that all unused sockets have been plugged.

3. Fit the auto air vent to the boiler.

4. Fill the system and vent all radiators and high points to

remove air from the system.

5. Check the boiler and all pipework connections for leaks.

11.5 Oil supply installation.

(See Fig. 16).

NOTE: Never route the oil supply pipe/hose directly below the

combustion chamber base.

NOTE: Connection of rigid copper pipe to the oil pump is not rec-

ommended. Connection to the oil pump should be made with

flexible oil hoses.

(a) Single pipe suction lift with de-aerator.

For connection of single pipe suction lift with de-aerator follow

the procedure as for a double pipe system as described below.

(b) Double pipe system oil return pipe.

1. fit the oil return pipe, from the tank, down the left hand side

of the boiler along the base. Terminate the end approximately

200mm from the front of the base.

2. Connect a flexible hose, of the same type as the one supplied, to

the pipe using a suitable adaptor.

Ensure that the connections are properly sealed.

3. Fit the oil supply pipe as described in the following section.

1. Bend a piece of 10mm or 12mm copper tube (as selected) to

the correct profile to allow the pipe to be fed down the side of

the appliance. The pipe may be routed along either the right or

left hand side of the boiler as required. When using 12mm pipe

fit a 12mm to 10mm compression coupling and connect to the

valve with a short piece of 10 mm pipe, otherwise connect direct

to the valve.

Note: never use soldered joints on oil supply pipes as this could

cause a hazard in the case of a fire.

2. Route the pipe back to the oil supply tank ensuring that it is

hard against the boiler, to allow installation of the side panel.

3. With the isolating valve in the correct orientation tighten the

back-nut.

4. Turn the isolating cock fully clockwise to close the valve.

5. Open the main oil supply valve at the tank and check for any

leaks.

6. Place a suitable container below the bulkhead fitting and

open the valve.

7. Draw off at least 2.5 litres of oil until a steady flow of clear

uncontaminated oil can be seen and turn off the isolating valve.

Note: This method may not be possible on some installations

where a sub-gravity system is used. Where this problem arises

bleed the system using the oil pump as described in Section 12

and remove and clean the oil pump filter to remove any debris

collected as a result of installation.

11.6 Replace the electrical control panel and side panels in

reverse order to the removal procedure of Section 5 and connect

the electrical supply as described in Section 10.

11.7 Condense drain connection

When connecting the condensate drain to the waste water

drain, it is essential to maintain a downwards slope towards the

waste drain.

Note: The maximum production of condensate is 1.5 L/h. This

flow rate does not require any specific treatment.

11. Installation

Fig. 25. Frost Protection.

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 27 28

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Bosch GREENSTAR II HE OIL 12/22 Service Manual Page 18

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