Installation Regulations - Riello RESIDENCE HM Series Instructions For The User

4 INSTALLATION
4.1 Cleaning the system and characteristics of
the water
In the case of a new installation or replacement of the boiler, it is nec-
essary to clean the heating system. To ensure the device works well,
top up the additives and/or chemical treatments (e.g. anti-freeze liquids,
filming agents, etc.) and check the parameters in the table are within the
values indicated.
HEATING CIRCUIT
PARAMETERS udm
pH value -
Hardness °F
Appearance -
Fe mg/kg
Cu mg/kg
The boiler must be connected to a heating system and a DHW network
both sized according to its performance and output.
Before installation, wash all system piping carefully in order to remove
any residues that may impair the operation of the appliance.
Under the safety valve, install a water collecting funnel with the
corresponding discharge in the event of leaks due to the overpressure
of the heating system. The domestic hot water circuit does not need a
safety valve, but make sure that the pressure of waterworks does not
exceed 6 bar. In case of doubts, install a pressure reducer.
b
Prior to ignition, make sure that the boiler is designed to operate
with the gas available; this can be checked by the wording on the
packaging and by the adhesive label indicating the gas type.
b
It is very important to emphasise that, in some cases, flues are
pressurised and therefore the joints of the various elements must
be airtight.
4.2

Installation regulations

Installation must be carried out by qualified personnel in accordance with
the following standards:
- UNI 7129-7131, CEI 64-8.
b
The use of protective clothing is recommended during the
installation of the boiler, to avoid any risk of personal injury.
Always comply with the local regulations of the fire brigade and gas com-
pany, and with any possible municipal regulations.
This type C wall-hung condensing boiler is able to operate as follows:
A CASE: only heating with no external water tank connected. The boiler
does not provide domestic hot water.
B CASE: only heating with an external water tank managed by a ther-
mostat: in this condition, the boiler delivers hot water to the water tank
for the preparation of DHW whenever a demand is made by the relative
thermostat.
C CASE: only heating with an external water tank (accessory kit avai-
lable by request) managed by a temperature probe for the production of
DHW. If the water tank is not supplied by our company, make sure that
the relative NTC probe has the following characteristics: 10 kOhm at
25°C, B 3435 ±1%.
POSITION
Depending on the fume discharge accessory used, it is classified in:
1. B23P-B53P boiler type - forced open installation, with flue gas
discharge pipe and pickup of combustion air from the installation
area. If the boiler is not installed outdoors, air intake in the installation
area is compulsory;
2. C(10)3; C13,C13x; C33,C33x; C43,C43x; C53,C53x; C63,C63x;
C83,C83x, C93,C93x boiler type: appliance with airtight chamber,
with flue gas discharge pipe and pick-up of combustion air from
outside. It does not require an air intake point in the installation area.
The appliance can be installed indoors (fig. A) or outdoors, but in a
partially protected place (fig. B), where it is not directly exposed to the
infiltration of rain, snow or hail. The temperature range in which it can
operate is: >0°C to +60°C.
C33
C53 C33
C83 C43
C13
FILLING
WATER WATER
7-8 -
- <15
- clear
<0,5 -
<0,1 -
C93
B23
C43
C53 C13
* rear outlet
** max 50 cm
fig. A
ANTI-FREEZE SYSTEM
The boiler comes as standard with an automatic anti-freeze system,
which activates when the temperature of the primary circuit water
drops below 5°C. This system is always active and provides protec-
tion for the boiler up to an air temperature in the installation area of
>0°C.
b
To take advantage of this protection (based on burner opera-
tion), the boiler must be able to switch itself on; any lockout
condition (e.g. a lack of gas or electricity, or the intervention of a
safety device) therefore deactivates the protection.
If the machine is left without power for long periods in areas where tem-
peratures may fall below >0°C, and you do not want to drain the heating
system, you are advised to add a good quality anti-freeze liquid to the
primary circuit to protect the machine from any risk of freezing. Carefully
follow the manufacturer's instructions with regards not only the percent-
age of anti-freeze liquid to be used for the minimum temperature at which
you want to keep the machine circuit, but also the duration and disposal
of the liquid itself.
For the DHW part, we recommend you drain the circuit.
The boiler components are made of materials resistant to antifreeze
liquids containing ethylene glycol.
MINIMUM CLEARANCES
Access the inside of the boiler for routine maintenance tasks, respecting
the minimum installation clearances.
When positioning the appliance, bear in mind that:
- it must be installed on a wall that can support its weight
- it must not be placed above a cooker or other cooking device;
- it is forbidden to leave flammable products in the room where the boil-
er is installed.
MINIMUM DISTANCES FOR MAINTENANCE
A: see section "Flue gas discharge configura-
tion" measurements in mm
7
fig. B