Riello RESIDENCE HM Series Instructions For The User page 11

-
-
- the dimensions of the connection to the shared pipes
- a warning concerning the air outlet and combustion product input
be closed and a check must be made when the boiler is discon-
nected, to make sure they are airtight
-
b
company's logo
See applicable legislation for the discharge of the combustion prod-
b
ucts as well as local regulations.
ing parameters.
maximum length
4,5 + 4,5
ø 80-80
4,5
ø 80/125
b
Before attempting any operation, disconnect the appliance from the
b electrical supply.
Before assembling, lubricate the gaskets with a non-corrosive glide
lubricant.
b
the boiler.
b
The number and characteristics of the appliances connected to the
smoke pipe must be suitable for the real characteristics of the pipe
itself.
b
The terminal of the collective pipe must create a draught.
b
b
The maximum permitted recirculation rate in windy conditions is 10%.
b
gas inlet and the air outlet of a collective smoke pipe cannot be ex-
ceeded when n-1 boilers are working at the maximum nominal heat
output while 1 boiler is working at the minimum heat output permitted
by the controls.
b
b
C(10)3
-
minimum length UM
0,5 m
0,5 m
-
Bends and extensions, available as accessories, can be installed according
to the desired type of installation.
shown in chapter "4.8 Flue gas exhaust and combustion air suction".
With C(10)3
label applied alongside the appliance serial number.
4.10 Filling the heating system and removing air
NOTE: operations for
) ensuring that the boiler is electrically powered.
A
NOTE: whenever the boiler is powered electrically, the automatic vent
cycle is carried out.
NOTE: the presence of a water alarm (E040, E041 o E042) does not
allow the vent cycle to be performed.
A) by turning it anticlockwise
check that the pressure value reaches 1-1.5 bar by means of a hy-
drometer placed under the bracket
A).
NOTE:
( A
To start the vent cycle:
connect the power again leaving the boiler OFF
check that the gas tap is closed.
At the end of the cycle, if the circuit pressure has decreased, act on the
A) to bring the pressure to the recommended value (1-
1.5 bar).
After the vent cycle, the boiler is ready.
Remove any air in the domestic system (radiators, zone manifolds,
.
etc.) using the bleed valves.
Once again check that the system pressure is correct (ideally 1-1.5
bar), restoring the right level if necessary.
If air is noticed when operating, repeat the vent cycle.
boiler.
At this point it is possible to carry out any heat request.
4.11 Emptying the boiler heating circuit
setting the main system switch to OFF.
Close the heating system taps (if present).
Connect a pipe to the system drain tap (C), then manually turn it
NOTE: act on the system drain tap (C) with a size 13 wrench
close it.
4.12 Emptying the boiler DHW circuit
Whenever there is a risk of freezing, the DHW system must be emptied
as follows:
turn on all the hot and cold water taps
drain the lowest points.
11
A C
the system must be carried out using the
:
.
C) and