Installation Instructions

Installation and Service Manual Epsilon-Series
19
We advise to build a simple ue gas system and air supply system. For further information
about the available components of the ue gas and air supply system we recommend
you to contact A.O. Smith.
The A.O. Smith ue gas system is meant and designed solely the use on
A.O. Smith central heating boilers adjusted for Nat gas or LPG. The maximum ue gas
temperatures are below 70°C (full load 80/60°C)
The proper operation can be inuenced harmfully by changes of or adjustments to the
correct set up.
Possible warranty claims will not be honoured if incorrect changes result in non compliance
with the installation manual or local rules and regulations.
The ue gas system should be built up using only A.O. Smith program products. Com-
binations with other brands or systems are without written permission from A.O. Smith
is not permitted.
Horizontal ue system should always be installed sloping towards the boiler, in order to
avoid condensate lying in the ue system.
The minimum gradient is 50mm/Mtr. With the condensate running back to the boiler the
risk of ice forming at the terminal is reduced.
The terminal should be located where dispersal of combustion products is not impeded
and with due regard for the damage or discolouration that might occur to building products
in the vicinity (see g 6.7.c).
In certain weather conditions condensation may also accumulate on the outside of the
air inlet pipe. Such conditions must be considered and where necessary insulation of
the inlet pipe may be required.
In cold and/or humid weather water vapour may condense on leaving the ue terminal.
The eect of such ‘plumeing’ must be considered.
terminal position for fan assisted boiler
minimum
distance
A
directly below an open window or other opening
(e.g. air brick)
mm
300
B below gutters, soil pipes or drain pipes
mm 75
C
below eaves
mm
200
D below balconies or car port roof
mm 200
E from vertical drain pipes and soil pipes
mm
75
F from internal or external corners
mm 300
G
above ground or below balcony level
mm
300
H from a surface facing a terminal
mm 600
I from a terminal facing a terminal
mm 1200
J
from an opening in the car port (e.g. door
window) into dwelling
mm 1200
K
vertically from a terminal on the same wall
mm 1500
L horizontally from a terminal on the same wall
mm 300
M horizontally from a vertical terminal to a wall
mm 300
Dimensions     table6.7.a
gure 6.7.c