Infinity 800 HD UBL, Instruction For User, Installation & Servicing

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LT 7941 Issue No 3 (04/22)
800 HD with UBL INSTALLATION INSTRUCTIONS
Checking the flue fire opening and fire opening.
Check that the chimney conforms to the required specification as previously stated. Examine
the condition and carry out any remedial work including removing any debris from the base.
If the flue has been used for solid fuel it should be swept prior to installation.
Prior to installing the appliance a smoke test (using a bomb) should be carried out to check that
satisfactory smoke clearance has been established. If all the smoke is not drawn into the flue,
pre-heat the flue with a blowtorch or similar and retest. If there is any uncertainty examine for
the cause and if necessary seek expert advice.
When installing the appliance against a dry lined plasterboard wall ensure that the void
between the plaster board and wall is sealed with a non-combustible material.
No combustible material should be fitted inside the fireplace opening.
Installation with a flexible liner
The 800 HD with UBL is designed for installation within the masonry chimney with or without a
flexible line.
If the flexible liner option is required the following two methods should be followed.
Method 1
A 125mm minimum diameter liner conforming to BS 715 may be used. Providing a suitable
sealing plate is fitted to the base of the liner and the appliance does not restrict the opening
into the liner. Ensure a smooth lead into the flue way and no combustible materials are used. A
void of 50mm must be maintained from the top of the firebox into flue.
Method 2
Using the flexible liner gather hood (Part No A-0662). Using again 125mm minimum diameter liner
conforming to BS 715, route the flexible liner within the masonry as of the requirements stipulated
by the liner manufacturer.
Attach the gather hood to the liner using a suitable fixing at a height that clears the firebox
assembly.
You will need to remove the entire burner tray assembly to be able to fit the gather hood.
Remove the ceramic liners to access the inner and outer inspection plates situated within the
rear of the fire box assembly (Please see Fig 1).