Refilling Or Emptying; 2.13.1 Refill Operations - Sime Brava Slim 40 BF Manual De Instalación Y Mantenimiento

EN
MULTI ZONE system - with pump, air thermostat and external
sensor.
TZ1
TA
RL1
M
SE R
P1
SP
2.13

Refilling or emptying

Before carrying out the operations described below, make
sure that the main system switch is set to "ON" in order for the
display to show the pressure level in the system during refilling.
Make sure that the operating mode is set to "Stand-by";
the case, press the button y
mode has been selected.
ON

2.13.1 REFILL operations

Remove the front panel:
– remove the two screws (1), pull the front panel (2) forwards
and release it from the top by lifting it.
2
TZ3
TZ2
RL2 RL3
P2 P3
Fig. 26
if this is not
for at least 1 second until this
Fig. 27
1
Fig. 28
Domestic hot water circuit:
– open the isolation valves of the domestic hot water circuit (if
present)
– open one or more than one hot water valve to fill and bleed the
domestic hot water circuit
– once bleeding has been completed, close the hot water valves.
Heating circuit:
– open the isolation and air bleeding valves in the highest points
of the system
– loosen the automatic bleed valve (3)
– open the isolation valves of the heating circuit (if present)
– Open the filling valve (4)
– Fill until the water overflows from the air bleeding valves and
shut off the valves again
– Continue filling until the pressure reaches 1-1.2 bar as shown
on the display (1)
– close the filling valve (4)
– check that there is no air in the system by bleeding all the
radiators and the circuit on the high points of the system
– remove the front plug (6) of the pump and use a screwdriver
to check that the impeller is not blocked
– replace the plug (6)
4
to completely remove all air from the system, it is
NOTE:
recommended that this operation is repeated a number of times.
– check the pressure on the display and if necessary top up until
the correct pressure reading appears
– close the automatic bleed valve (3).
Refit the front panel of the boiler hooking it on at the top,
pushing it forwards and securing it with the screw (1) which was
removed previously.
6 3
Fig. 29
87