5FILLING AND BLEEDING THE APPLIANCE AND INSTALLATION
NB: Switch the appliance off with the key. Do not switch the appliance on again until after filling and bleeding.
5.1 Central heating system
In order to guarantee a successful operation of the CH installation the water pressure in the system in case of a cold system should be
between 1 and 2 bar (Indicated on the temperature display when the appliance is in off mode ( - on display)).
If the pressure is too low, the system should be topped up.
If the pressure comes below 0,3 bar when the appliance is acti e the water pressure alue will be displayed (flashing digit) instead of
the time read-out. The system should be topped up.
Proceed as follows:
•Connect the filling hose to the drinking water tap and fill the hose with water until there is no longer any air in the hose.
Filling is only allowed ia an appro ed filing loop that has check al es fitted.
•Connect the filling hose to the filling / drain tap at the bottom of the appliance.
•Open the drinking water tap and then the filling / drain tap.
•Fill the appliance and the system until a cold water pressure between 1 and 2 bar is reached.
•Close the filling / drain tap and then the drinking water tap.
•Bleed the system and the appliance.
The appliance bleeding point is located at the top left on the appliance
The system can be bled via the bleed taps on the radiators and/or an air bleed in the piping
•Check that after bleeding the system the water pressure in the installation is still between 1 and 2 bar; if not, repeat the procedure.
If the system has to be filled more frequently than a few times a year, notify your installer since this means that there is probably a leak.
5.2 Domestic hot water supply
Pressurise the DHW part of the appliance by opening the main tap and/or the inlet assembly.
Remo e air from the appliance and the pipe work by opening a hot water tap. Lea e the tap open until all the air
has disappeared from the appliance and the pipe work. Close the hot water tap.
Check the connections for leakage.
5.3 Frost protection
To pre ent freezing of the condensate drain, the appliance should be installed in a frost-free room.
The appliance is equipped with frost protection which, as long as mains current is present, switches on the CH pump
and if necessary the burner when the heat exchanger temperature falls too far.
NB: If an internal or external frost thermostat has been installed in the system and connected to the appliance, it is not acti e when the
appliance has been switched off at the operating panel ( - on ser ice display).
5.4 Condensate outlet.
The condensate outlet shall under no circumstances be modified or blocked. When a condensate neutralisation system is installed this must be
maintained and ser iced in accordance to the regulations pro ided by the supplier of the condensate neutralisation system..
6MAINTENANCE
The appliance can be cleaned with a damp cloth. Do not use aggressi e or abrasi e cleaning agents or sol ents.
The appliance and the installation should be checked and where necessary cleaned annually by a registered
installer. The same applies to the flue pipe and air supply pipe.
If you smell gas or are worried about gas safety please call the National Gas Emergency Ser ice at 0800 111 999.
For more details isit the website of the National Grid www.nationalgrid.com/uk/Gas/Safety/Emergency.
Always use a Gas Safe registered engineer to fit, fix or ser ice your gas appliance. To find or check an engineer call Gas Safe
Register’s free helpline on 0800 408 5500 or isit www.GasSafeRegister.co.uk.
Intergas boilers are manufactured in a Kiwa ISO 9001 certified production faccility
Intergas Heating Ltd 884597-00
Intergas Heating Limited Telephone: 01527 888000
Building 94 Fax : 01384 279480
Bay 1 Vantage Point info@intergasheating.co.uk
The Pensnett Estate www.intergasheating.co.uk
Kingswinford
DY6 7FS
