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3.0 Important Information & Operation
3.1
Important Information
1. The Assure FGHR must only be fitted with one of the
range of boilers specified (see p.2). It must be installed in
accordance with these instructions, and by a competent
person.
2. The current Gas Safety (Installation & Use) Regulations
must be observed, along with all relevant Building
Regulations/Standards, Water Regulations/Standards and
the B.S. Codes of Practice listed in the boiler instructions.
3. A dedicated wall frame (Section 1.2, item ii) is supplied
to mount the Assure FGHR and boiler on - this MUST be
used and fitted in accordance with these instructions and
as shown on the template supplied.
4. When installing direct rear flue 7210434 the collar
(Section 1.2, item iii) must also be used and the hole for
the flue must be cut Ø150 mm. Also Internal Fitting Kit
7215374 should be acquired and the foam seal from this
kit employed.
5. The Assure FGHR must be fitted on a flat vertical
surface.
6. The Assure FGHR is in effect part of the flue system
and should be considered as such.
IMPORTANT: These instructions must be read in
conjunction with those supplied with the boiler.
3.2
Operation
1. There are no moving parts in the Assure FGHR and it
does not need any electrical supply. It is connects to the
boiler flue adaptor and is mounted on a special wall frame
on which the boiler is also hung.
2. A gas-to-water heat exchanger extracts heat from the
discharged products of combustion (hot flue gases) during
boiler operation. This heat is used to pre-heat the
incoming cold mains before it is heated for domestic hot
water purposes.
3. In central heating mode the cylinder captures the heat
from the hot flue gases which is stored for later use.
4. Additionally, as the flue gases leaving the Assure FGHR
contain considerably less moisture, the amount of pluming
is reduced.
5
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