8.3 Installation instructions regarding existing flues. (see APPENDIX 3)
Instructions
The flue gas exhaust system falls within category C91 and must be built in accordance with national rules and regulations
and the instructions of the manufacturer, as specified in the documentation and installation instructions.
This means, among other things, that the existing chimney must not be smaller than 150 mm round / square, but no
larger than 200 mm, and not ventilated by grilles etc. In the case of larger chimney size, a flexible hose of around 150
mm may possibly be used in combination with a flexible hose of around 100 mm, as described below. For other
situations, you should consult your supplier / manufacturer.
8.4 Components
Check all parts for damage before commencing the installation. You will require the following parts for converting
a brickwork duct to a balanced flue concentric duct :
Note:
The renovation kit consists of parts 4, 5 and 7.
8.6
Installation
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Guide the flexible hose (6) through the existing duct.
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Attach the adjustable pipe (5) to the bottom of the flexible hose and secure this in place using 2 parkers.
*
Level the bottom side of the adjustable pipe (5) with the ceiling of existing chimney.
*
Shorten the flexible hose to approximately 100 mm above the existing chimney top.
*
Attach the mounting plate / connecting piece (7) to the flexible hose on the roof. Clamp it with a hose
band and secure it in place using a parker.
*
Attach the mounting plate / connecting piece (7) to the chimney top, using silicone sealant to make it
watertight secure with stainless steel screws.
*
Install the roof terminal (9) and secure it in place using the supplied locking band (8).
*
The adjustable pipe (5) will stick about 100mm below ceiling/existing chimney. Mount the inner ceiling
plate (4) gastight to the ceiling/existing chimney with silicone kit and fixing screws.
*
Position the unit in accordance with the instructions of the unit manufacturer.
*
Always install a minimum of 1 metre of concentric duct type THC CC (2).
8.6 Cleaning and maintenance
This appliance should be inspected and serviced once a year by a qualified, competent and registered person.
The inspection and maintenance must at least ensure that the appliance is working correctly and safely.
It is advisable to clean the appliance of any dust and debris before regularly during the heating season and
especially if the appliance has not been used for some time. This can be done with a soft brush and a vacuum
cleaner or a damp cloth and if required a non-abrasive cleaning agent. Do not use corrosive or abrasive
substances to clean the appliance.
The Concentric flue system must be inspected and cleaned every 2 years.
Also control of:
1
Gas tightness of gas fire and concentric flue system.
2
The correct operation of the gas control and the ignition of the burner.
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