Bedienungsanleitung Stovax View High Output Boiler Stoves (Seite 29 von 44) (Englisch)

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Installation Instructions

10. Fully Pumped System

10.1 In many installations (especially new build) a fully pumped

system is the best choice to give increased control.

WARNING - To prevent the risk of boiling it is essential

to arrange the pipe work and position the hot water

cylinder and heat leak radiator so that gravity

circulation can take place when the pump is not

running. Any motorised valves fitted in this circuit must

return to the fully open position when the power is

interrupted.

11. Sealed (Pressurized) System

11.1 Do not fit this appliance to sealed or pressurised systems or

an unvented hot water cylinder.

12. Pipework Diagrams

12.1 See below for a typical layout of a pumped central heating

and gravity hot water circuit.

HEATING SYSTEM CONTROLS

CONTROLS GENERAL

1.1 The controls fitted to the system will provide two functions:

— To control the comfort level in the house.

— To maintain safety in the event of misuse or mechanical

failure.

COMFORT CONTROLS

1.2 This primarily consists of a time clock wired into the pump.

The pump is switched on when heat is required and when it

is not, the pump is switched off.

The time clock, when combined with a room thermostat and

or thermostatic radiator valves, enhances the comfort levels

in the house.

Some room thermostats combine the function with the

time clock and can be programmed to reduce the room

temperature rather than turning the system off. This is

effective in not allowing the rooms to become too cold and

speeding up recovery time.

1.3 The hot water cylinder can also be fitted with a thermostatic

valve which turns off the flow when the cylinder has reached

the desired temperature but the heat leak radiator will have

to be bigger to cope with the extra load when the tank is

isolated.

SAFETY CONTROLS

1.4 This primarily consists of a high limit thermostat fitted to

thegravityflowpipesetat80˚C,thisthermostatshould

be connected to the pump so that the pump is turned on if

thetemperatureexceeds80˚C.Thiswillpreventaccidental

boiling in the gravity circuit.

1.5 It is also recommended to fit a low limit thermostat on the

centralheatingreturnsetat45˚C,thisthermostatwillturnthe

pumpoffifthereturntemperaturefallsbelow45˚C.Thiswill

prevent corrosion and condensation within the appliance.

CONDENSATION

1.6 When filling the boiler with water for the first time, the cold

water entering the water jacket can cause condensation to

form on the surfaces of the appliance (inside and outside).

1.7 In certain conditions this condensation could result in a

considerable amount of water, in some cases enough to fill

the bottom of the appliance. This could be even worse if the

house has recently been re-decorated, wet plastered or any

other work has been undertaken which could result in high

humidity.

1.8 Precautions must be taken to ensure that this build up of

condensate does not overflow from the appliance onto any

surrounding fabric of the room e.g. carpets.

NOTE - THIS CONDENSATION IS NORMAL DURING

FILLING AND DOES NOT INDICATE A FAULTY OR

LEAKING APPLIANCE.

NORMAL RUNNING

1.9 During normal running this condensation should be minimal

if the system is fitted with the low limit thermostat as detailed

in 1.5. This low limit thermostat prevents the system pump

from running until the appliance has reached temperature.

SEASONAL USE

1.10 If this appliance is unused for lengthy periods of time it

should be periodically checked to ensure that condensation

is not building up within the appliance.

NOTE – THIS CONDENSATION IS NORMAL AND DOES

NOT INDICATE A FAULTY OR LEAKING APPLIANCE.

If the appliance is going to be unused for very long periods

of time it is recommended to drain the system.

NOTE – Further information on solid fuel central heating

systems can be found in the HETAS engineers training

manual.

LINK UP SYSTEMS

For information on how to link solid fuel boilers to other

heating appliances see Information For Dual System Link

Up Methods (PM286). This can be obtained through Stovax.

Call (01392) 474011, email info@stovax.com or visit

www.stovax.com for details.

Always seek the advice of a competent person* before

linking another heating system to a solid fuel boiler.

*Registered on the Competent Persons Scheme (GB

only) see page 39/ INFO (Republic of Ireland).

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