Electrical Connection; Rva 43.222" Climate Controller; Important - Sime 1R OF Instrucciones De Instalación Y Mantenimiento

iron body. To fit the casing, proceed
as follows (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 boi-
ler 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-tap-
ping 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
provided;
– 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
control panel, to the side parts
and angle bars;
– unwind the capillary tubes of the
two thermostats and thermo-
meter by inserting their sensors
inside the sheath (11), securing
"1R OF/2R OF/OF S" boilers
46
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
Certificate" from inside the com-
bustion chamber and keep toge-
ther with the instructions manual.
2.7

ELECTRICAL CONNECTION

(figg. 9 - 9/a)
The boiler is fitted with an elec-
tricity cable, and requires a a
single-phase power supply of
230V - 50Hz through the main
switch protected by fuses. The
room thermostat (required for
enhanced room temperature con-
trol) must be connected to the
terminals 4-5 after removing the
link. Connect the burner cable
supplied.
NO TE: Device must be connected to
an efficient earthing system. SI ME
de cli nes all responsibility for inju-
ry caused to persons due to failure
to earth the boiler.
Always turn off the power supply
before doing any work on the elec-
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)
NO TE: When a room stat is to be fitted remove the link betwe-
en terminal 4 and 5 on the connector plug.
To connect the programmer's clock (OP), remove the link
between terminals 5 and 8.
trical panel.
2.8 RVA 43.222 CLIMAT
CONTROLLER
All functions of the "2R GT OF" boiler
"Testing
may be controlled using the control-
ler, optional code 8096303, which is
supplied with an outdoor temperatu-
re probe (SE) and a boiler immersion
probe (SC). The controller is installed
in the control panel in place of the
relating cover (fig. 11). The controller
is to be connected to an additional
series of low voltage connectors for
connection of the room temperatu-
re control unit (the connectors are
supplied in a bag inside the control
panel). The probe bulb of the exter-
nal 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 inser-
ted in the boiler sheath.
When assembling the outdoor tem-
perature probe, follow the instruc-
tions provided in the probe package.
Refer to fig. 9/a for wiring instruc-
tions.
IMPORTANT: To make sure that the
unit works properly, set the boiler
control 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).
Fig. 9