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2
INSTALLATION
The installation must conform to the requi-
ENG
rements of the Authority having jurisdiction
or, in the absence of such requirement, to
FR
t he National Fuel Gas Code, ANSI
Z223. 1 /NFPA 54 or CAN/CSA B149. 1
natural gas and propane Installation Code.
Where required by the Authority having
jurisdiction, the installation must conform
to the Standard for Controls and Safety
Devices for Automatically Fired Boilers,
ANSI/ASME CSD-1. All boilers must be
installed with a proper pressure relief
valve. Pressure relief valves must be instal-
led to conform to ANSI/ASME Boiler and
Pressure Vessel Code, Section IV, or CSA
B51, as applicable. If the boiler is installed
above the radiation level, or as required by
the Authority having jurisdiction, the instal-
ler must provide a low water cut-off device
at a time of installation. The boiler must be
installed in a fixed location and only by a
qualified installer, service agency or the gas
supplier and is familiar with the require-
ments that are contained in this manual.
The boiler must not be installed on carpe-
ting. The boiler when used in connection
with a refrigeration system, must be instal-
led so the chilled medium is piped in paral-
lel with the boiler with appropriate valves to
prevent the chilled medium from entering
the boiler. The boiler piping system of a hot
water boiler connected to heating coils
located in air handling units where they
may be exposed to refrigerated air circula-
tion must be equipped with flow control val-
ves or other automatic means to prevent
gravity circulation of the boiler water during
the cooling cycle. Service instructions and
recommended frequency guidelines perio-
dic examination of venting systems every
six months. Venting systems, the vent-air
intake system, screens in the vent termi-
nal should be checked and cleaned every
six months. Low water cutoff should be
checked and cleaned every six months.
Remove small cover retaining screw and
remove the cover. When the pump is run-
ning and water is flowing around the boiler ,
the actuator lif ts off the micro switch.
Check that the operation of the actuator ;
Ensure that it is free and that it lifts and
returns. If necessary lubricate the pivot
point of the actuator. Flue gas passageways
should be checked and cleaned every six
months. Condensate collection and dispo-
sal system should be checked and re-sea-
led every six months. The burner should be
checked and cleaned every six months.
Inspect the burner and if necessary clean
using a soft brush and a vacuum cleaner,
taking care not to damage the front insu-
lation. Check the ignition /ionisation elec-
trode, check the ignition spark gap (4 mm
+/- 0.5 mm) (0. 1 6 in. +/- 0.02 in.).
Check the ionisation electrode, check the
distance from the burner (18.7 mm +/- 1
mm) (0.74 in. +/- 0.04 in).
Before reassembly inspect all seals and
replace as required. Furthermore, the
installation must be in accordance with cur-
rent standards and regulations.
6
2. 1
VENTILATION OF BOILER ROOM
When using air from the boiler room, an
adequate air supply shall by provided for
combustion of this boiler. An insufficient
supply can result in poor combustion and
possible sooting of the burner, combu-
stion chamber or flue passageway.
The boilers installed using inside air supply
must provide provisions for Combustion Air
and Ventilation Air in accordance with sec-
tion 5.3, Air for Combustion and Ventilation,
of the National Fuel Gas Code, ANSI Z
223, 1 /NFPA 54, or section 7,2, 7.3, or 7.4,
of CAN/CSA B 149, Installation Codes, or
local codes having jurisdiction.
Where an exhaust fan or any other air con-
suming appliance is installed in the same
space as the boiler, sufficient air openings
must be available to provide fresh air when
all appliance are operating simultaneously.
It is essential that in rooms where the boi-
ler are installed at least as much air can
arrive as required by normal combustion of
the gas consumed by the varius appliances.
Consequently, it is necessary to make ope-
nings in the walls for the air inlet into the
rooms. These openings must meet the fol-
lowing requirements:
1. Have a total free section of a least
2225 mm
2
every kW (1 in
1000 Btu/hr) of heat input, with a
minimum of 100 cm
2
(15.5 in
Installation with optional kit (code 8101528): mm (in.)
455 (18)
M2
265 (10.4)
2. Where required by jursdiction or
when required for additional opening
must be provided at the highest ele-
vation practical.
With a hermetically sealed combustion
chamber and air supply circuit from out-
doors, may be installed in any room in the
home. Keep boiler area clear and free from
combustible materials, gasoline and other
flammable vapors and liquids.
2.2
INSTALLATION
For single installations, it is also possible to
order an optional compensator kit (code
8101528). The kit can be fitted on accumu-
lation boilers with a capacity equivalent to or
above 80 liters (21 us gal). For installation
refer to the example in fig. 3. With control
unit code 8096301, supplied by Sime upon
request, a maximum of four boilers can be
controlled. The control unit kit is supplied
with assembly and use instructions.
2.3
CONNECTING UP SYSTEM
To protect the heat system from damaging
corrosion, flakes or deposits, before instal-
2
for every
lation it is extremely important to clean the
system using suitable products such as,
2
);
descaler or slug removing solution. For
C
WARNING:
- In both single and sequen-
R3
146 (5,8)
500 (20)
- When replacing one or
M
R
M2
M2 Tank flow
R3 Tank return
C
R
M
88 (3.5)
330 (13)
ce/cascade installation,
the heating system must
be
equipped
with
a
hydraulic separator and
safety components.
more boilers in existing
plants, it is advisable to
install a heat exchanger
to separate the boiler cir-
cuit from the secondary
circuits. See the pressure
curve for the boiler sup-
ply shown in figure 14.
C.H. flow
2" MNPT
C.H. return
2" MNPT
1" MNPT
1" MNPT
Charge connection 1/2" MNPT
Fig. 3
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