Electrical Connection; Rva 43.222" Climate Controller; Important - Sime 1R OF Serie Manual De Uso

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ges. The housing package also con-
tains the boiler documents and the
glass wool for insulating the cast iron
body. To fit the casing, proceed as fol-
lows (fig. 8):
– insert the front crosspiece (4) into
the lower tie-rods;
– fix the left front side angle bar (2)
and the right front side angle bar (3)
to the tie-rods of the boiler body,
blocking them with the four blind
nuts provided;
– insulate the cast iron body with the
glass wool provided;
– fix the side parts (5) and (6) to the
angle bars using the ten self-tapping
screws provided, and secure them
at the back with the nuts placed on
the tie rods;
– assemble the lower rear panel (7)
with the eight self-tapping screws
provided;
– assemble the upper rear panel (8)
with the six self-tapping screws pro-
vided;
– fix the control panel (12) to the angle
bars using the four screws provided.
For vers. "2R OF/OF S/ GT OF", fix
the left bracket (1) using three self-
tapping screws and the right
bracket (1), before installing the con-
trol panel, to the side parts and
angle bars;
– unwind the capillary tubes of the two
"1R OF/2R OF/OF S" boilers
46
thermostats and thermometer by
inserting their sensors inside the
sheath (11), securing the assembly
in position using the capillary tube
retaining spring provided;
– complete assembly by fixing the
cover (10) and the front panel (9) to
the side parts.
NOTE: Remove the "Testing Certifi-
cate" from inside the combustion
chamber and keep together with
the instructions manual.
2.7

ELECTRICAL CONNECTION

(figg. 9 - 9/a)
The boiler is fitted with an electricity
cable, and requires a a single-phase
power supply of 230V - 50Hz throu-
gh the main switch protected by
fuses. The room thermostat (requi-
red for enhanced room temperatu-
re control) must be connected to
the terminals 4-5 after removing
the link. Connect the burner 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 electri-
cal panel.
2.8
RVA 43.222 CLIMAT
CONTROLLER
All functions of the "2R GT OF" boiler
may be controlled using the controller,
optional code 8096303, which is sup-
plied with an outdoor temperature
probe (SE) and a boiler immersion
probe (SC). The controller is installed in
the control panel in place of the rela-
ting cover (fig. 11). The controller is to
be connected to an additional 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 inser-
ted 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 tempe-
rature probe, follow the instructions
provided in the probe package. Refer to
fig. 9/a for wiring instructions.
IMPORTANT: To make sure that the
unit works properly, set the boiler con-
trol thermostat as high as it will go.
NOTE: The brown (capped off)
cable has to be exclusively used
in case of permanent feeding
burners (type B1).
KEY
L
Line
N
Neutral
IG
Main switch
TS
Safety stat
TC
Boiler stat
SA
Green voltage LED
P
C.H. pump
B
Direct Feeding Burner (not supplied)
B1
Permanent Feeding Burner (not supplied)
TA
Room stat
OP
Programmer's clock (optional)
NOTE: When a room stat is to be fitted remove the link
between terminal 4 and 5 on the connector plug.
To connect the programmer's clock (OP), remove the link
between terminals 5 and 8.
Fig. 9

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