Bedienungsanleitung Saunier Duval Thelia 30 e (Seite 13 von 15) (Englisch)

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COMMISSIONING

The commissioning and first firing of the boiler must

only be done by a competent person.

Gas installation

It is recommended that any air is purged from the

supply at the gas inlet test point on the lower right

hand side of the gas valve, see diagram 15.

Filling the system

• Open shut off valves, see diagram 5 (slot of screw

corresponds to flow direction), and caps on auto-

matic air vents on top of pump and top right hand

side of boiler.

• Bleed each radiator until a continuos jet of wa-

ter is obtained.

• Do not close automatic air vent caps on boiler.

• Open various hot water taps to bleed system.

• Make sure that pressure gauge reads between

1 and 2 bar. Re-pressurise system as necessary.

Important:

- If this procedure is not carried out properly, the

boiler will go into safety lock-out until all of the air

has been purged.

- When venting air from boiler, do not touch the

schrader valve on the expansion vessel, it is NOT a

vent.

Starting the boiler

Before starting the boiler check that:

- The gas meter tap is open.

- The boiler gas service cock is open.

- The boiler is connected to the electrical supply.

First starting up

• Following the instructions given in the 'Controls

and Lighting' section, set boiler to run in central

heating mode.

• Set boiler thermostat for maximum temperature

and check that any external controls, if fitted, are

calling for heat.

• Allow the temperature to rise to the maximum

value, with all radiator valves open.

The temperature rise will cause release of the gases

contained in the water of central heating system.

- Gases driven towards the boiler will be automati-

cally released through the automatic air vents.

- The gases trapped at the highest point of the sys-

tem must be released by bleeding the radiators.

On reaching maximum temperature, the boiler

should be turned off and the system drained as

rapidly as possible whilst still hot.

• Refill system to a pressure of 1 bar and vent as

before.

• Restart boiler and operate until a maximum tem-

perature is reached. Shut down boiler and vent

heating system. If necessary, top up heating sys-

tem and make sure that a pressure of 1 bar is indi-

cated on the pressure gauge when system is COLD.

Gas pressures

The main burner pressure should be checked dur-

ing commissioning to make sure the correct input

is obtained. Proceed as follows:

• Shut down boiler.

Diagram 15

Ins 009

Diagram 16

Gas inlet

test point

Connect the pressure gauge to MP and

RMP

MP = measuring point

RMP = reference measuring point

pressure gauge

Ins 006

• Undo screws on burner pressure test points RMP

and MP below sealed combustion chamber, see

diagram 16.

• Connect a suitable pressure gauge.

• Gain access to the rear of the control panel and

locate the range rating adjuster screw, see dia-

gram 17.

• Start boiler as described in 'Instruction for Use'.

• Set OFF/Summer/Winter switch to 'Winter' (Heat-

ing and hot water ) position.

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