Manual Saunier Duval Thelia 30 e (page 14 of 15) (English)

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COMMISSIONING

• Set boiler thermostat to maximum and check

that any external controls are calling for heat.

• Check that the reading on the gauge matches

that given in 'Technical Data' for the type of gas

being used.

• Adjust the range rating adjuster screw as neces-

sary to obtain the desired input.

• Shut down boiler.

• Remove pressure gauge, tighten up test point

screws and check for gas soundness.

• Using a ball point pen, clearly indicate on the

data label the input the boiler is set to.

Note: This adjustment does not affect the domes-

tic hot water output.

If measured burner pressure differs greatly from the

given figure, check the gas inlet pressure as follows:

• Shut down boiler.

• Remove screw from inlet test point on the side of

the gas valve, see diagram 15.

• Connect a suitable pressure gauge.

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

• Check that the inlet pressure reading matches

that given in 'Technical Data' for the type of gas

being used.

Reg 014

Diagram 17

• Shut down boiler.

• Remove pressure gauge, tighten up test point

screws and check for gas soundness.

• If the gas pressure is incorrect, refer to the Fault

Finding section in 'Servicing Instructions'.

• If the inlet pressure is below that given, the gas

supply pipework/meter must be checked and any

fault corrected.

• In the case of an LPG installation, check the stor-

age tank or cylinder, regulator and pipework.

OPERATING SAFETY DEVICES

Important notice: A central heating system cannot

operate satisfactorily unless it is properly filled with

water and unless the air initially contained in the

piping systems has been properly bled off. If these

conditions are not satisfied, air noise will occur

within the system.

Air in the heating system

Persistent air in the heating system may indicate

leaks in the system or corrosion taking place. Call

your Installation/Servicing company.

Overheat safety

In the event of a problem, the overheat safety

devices cause safety shutdown of the boiler. If this

happens, call your Installation/Servicing company.

The THELIA 30 E boiler has a built in frost protection

device that protects the boiler from freezing. If the

boiler is to be left and there is a risk of frost, ensure

that the gas and electrical supplies are left con-

nected and that the OFF/Summer/Winter switch is

left in the'Summer' or 'Winter' position.The frost pro-

tection device will light the boiler when the tem-

perature of the boiler water falls below 6°C. When

the temperature reaches 16°C, the boiler stops.

Note: This device works irrespective of any room

thermostat setting and only protects the boiler. Al-

ways ensure that adequate frost protection is given

to the entire system where necessary.

Gas leak or fault

If a gas leak or fault exists or is suspected, turn the

boiler off and consult the local gas undertaking or

your installation/servicing company.

In case of power supply failure

The boiler no longer operates.

As soon as power supply is restored, the boiler will

be automatically restarted.

Air flow rate safety device

If an obstruction, even partial, of the flue occurs,

for any reason whatsoever, the built in safety sys-

tem of the boiler will turn the boiler OFF and the

fan will continue to run.

The boiler will be ready to operate when the fault

has been cleared.

In case of loss of water in the system

CAUTION. The boiler is installed as part of a sealed

system which must only be

drained and filled by a com-

petent person.

If the pressure shown on the

pressure gauge is less than 1

bar or if the red loss of water

warning light is ON, the sys-

tem

must be filled up immediately. Call your Installation/

Servicing company.

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Saunier Duval Thelia 30 e Manual

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