Sime ESTELLE HE Manual Download

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2.1

BOILER ROOM

The boiler room should feature all the char-
acteristics required by standards governing
liquid fuel heating systems.

2.2

BOILER ROOM
DIMENSIONS

Position  the  boiler  body  on  the  foundation
bed,  which  should  be  at  least  10  cm  high.
The body should rest on a surface allowing
shifting, possibly by means of sheet metal.
Leave  a  clearance  between  the  boiler  and
the wall of at least 0.60 m, and between the
top  of  the  casing  and  the  ceiling  of  1  m
(0.50 m in the case of boilers with incorpo-
rated D.H.W. tank).
The ceiling height of the boiler room should
not be less than 2.5 m.

2.3

CONNECTING
UP SYSTEM

When connecting up the water supply to
the boiler, make sure that the specifications
given in fig. 1 are observed.
All connecting unions should be easy to dis-
connect by means of tightening rings.
A closed expansion tank system must be
used.

2.3.1

Filling the
water system

Before connecting the boiler, thoroughly
flush the system to eliminate scale which
could damage the appliance.

Filling must be done slowly to allow any air
bubbles to be bled off through the air valves.
In  closed-circuit  heating  systems,  the  cold
water filling pressure and the pre-charging
pressure of the expansion vessel should be
no  less  than  or  equal  to  the  height  of  the
water head of the installation (e.g. for water
head  of  5  meters,  the  vessel  pre-charging
pressure  and  installation  filling  pressure
should be at least 0.5 bar).

2.3.2

Characteristics
of feedwater

Water  supplying  the  heating  circuit  must
be  treated  in  accordance  with  UNI-CTI
8065 standards.
It  is  absolutely  essential  to  treat  water  in
the heating system in the following cases:

– For extensive systems (with high con-

tents of water).

– Frequent addition of water into the

system.

– Should it be necessary to empty the sys-

tem either partially or totally.

2.3.3

D.H.W. storage tank

The

“ESTELLE HE”

boilers may be matched

with the separate boiler units

“BA100-

BA150 -BA200”

The glass enamelled D.H.W. storage tank
comes with a magnesium anode to protect
the boiler and an inspection flange for
checking and cleaning.

The magnesium anode must be checked
annually and replaced if it is worn.

Fit a safety valve calibrated to 6 bar on the
tubing of the cold water supply to the boiler
unit. An case the system pressure is exces-
sive fit an appropriate pressure reducer. If
the  safety  valve  calibrated  to  6  bar  fre-
quently  intercepts,  fit  an  expansion  vessel
with  a  capacity  of  8  litres  and  a  maximum
pressure of 8 bar. The tank should be of the
membrane  type,  made  of  natural  rubber
“caoutchouc”, which is suitable for foods.

2.4

CONNECTING UP FLUE

The  flue  is  of  fundamental  importance  for
the  proper  operation  of  the  boiler;  if  not
installed in compliance with the standards,
starting the boiler will be difficult and there
will be a consequent formation of soot, con-
densate and encrustation.
The flue used to expel combustion products
into the atmosphere must meet the follow-
ing requirements:
– be  constructed  with  waterproof  materi-

als, and resistant to smoke temperature
and condensate;

– be of adequate mechanical resilience and

of low heat conductivity;

– be perfectly sealed to prevent cooling of

the flue itself;

– be as vertical as possible; the terminal

section of the flue must be fitted with a
static exhaust device that ensures con-
stant and efficient extraction of products
generated by combustion;

– to prevent the wind from creating pres-

sure  zones  around  the  chimney  top
greater than the uplift force of combus-
tion gases, the exhaust outlet should be
at  least  0.4  m  higher  than  structures
adjacent to the stack  (including the roof
top) within 8 m;

– have a diameter that is not inferior to

that of the boiler union: square or rec-
tangular-section flues should have an
internal section 10% greater than that of
the boiler union;

– the useful section of the flue must con-

form to the following formula:

resulting section in cm

reduction coefficient for liquid fuels:
– 0.045 for firewood
– 0.030 for coal
– 0.024 for light oil
– 0.016 for gas

boiler input in kcal/h

height of flue in meters, measured
from the flame axis to the top of the
flue reduced by:
– 0.50 m for each change of direc-

tion of the connection union
between boiler and flue;

– 1.00 m for each metre of union

itself.

2.5

ELECTRICAL CONNECTION

The boiler is fitted with an electricity cable,
and  requires  a  1ph  -  230V  -  50Hz  power
supply  through  the  main  switch  protected
by  fuses.  The  room  thermostat  (required
for  enhanced  room  temperature  control)
should be installed as shown in fig. 6.
Connect the burner with the cable supplied.

NOTE:  Device  must  be  connected  to  an
efficient earthing system.
SIME  declines  all  responsibility  for  injury
caused to persons due to failure to earth
the boiler.
Always  turn  off  the  power  supply  before
doing any work on the electrical panel.

2.5.1

RVA 43.222 climat controller

All functions of the boiler may be controlled
using  the  contr oller,  optional  code
8096303, which is supplied with an outdoor
temperature probe (SE) and a boiler immer-
sion probe (SC). The controller is installed in
the  control  panel  in  place  of  the  relating
cover (fig. 7).
The controller is to be connected to an addi-
tional  series  of  low  voltage  connectors  for
connection of the room temperature control
unit  (the  connectors  are  supplied  in  a  bag
inside  the  control  panel).  The  probe  bulb  of
the external hot water tank, if any, (SS) code
6277110, must be inserted in the hot water
tank  sheath,  while  the  bulb  of  the  boiler
probe  (SC)  must  be  inserted  in  the  boiler
sheath. When assembling the outdoor tem-
perature probe, follow the instructions provi-
ded in the probe package. Refer to fig. 6 for
wiring instructions.