63
INSTALLER
USERMAINTENANCE TECHNICIAN
TECHNICAL DATA
3
INSTRUCTIONS FOR
MAINTENANCE AND INITIAL
CHECK
3.1 GENERAL RECOMMENDATIONS
Operators who install and service the ap-
pliance must wear the personal protec-
tive equipment (PPE) required by appli-
cable law.
e list of possible PPE is not complete as
they are indicated by the employer.
Before carrying out any maintenance
work, make sure that:
– you have disconnected the power to the
appliance;
– you have discharged the pressure from
the system and domestic hot water cir-
cuit.
Supply of spare parts
e device’s warranty shall be rendered null and void if
unapproved or unsuitable parts are used for mainte-
nance or repairs. ese will also compromise the prod-
uct’s compliance, and the said product may no longer be
valid and fail to meet the current regulations. in regard
to the above, only use original Immergas spare parts
when replacing components.
If additional documentation needs to be consulted for
extraordinary maintenance, contact the Authorised Af-
ter-Sales Service.
e appliance operates with R32 refrig-
erant gas.
is gas is ODOURLESS.
Pay the utmost attention
Strictly follow the instruction handbook
of the UE Audax Pro outdoor unit before
installation and any type of operation on
the chiller line.
R32 refrigerant gas belongs to the low
ammability refrigerant category: class
A2L according to standard ISO 817. It
guarantees high performance with low
environmental impact. e new gas re-
duces the potential environmental im-
pact by one third compared to R410A,
having less eect on global warning
(GWP 675).
3.2 INITIAL CHECK
To commission the package, you must:
- make sure that the type of gas used corresponds to indoor unit
settings;
- check connection to a 230V-50Hz power mains, correct L-N
polarity and the earthing connection;
- make sure the central heating system is lled with water and the
indoor unit pressure gauge reads a pressure of 1-1.2 bar;
- check that the air vent valve cap is open and that the system is
well-vented;
- switch the indoor unit on and check correct ignition;
- check the ∆p gas values in domestic hot water and central heat-
ing modes;
- check the CO2 ow rate in the ue:
• maximum
• minimum
- check activation of the safety device in the event of no gas, as
well as the relative activation time;
- make sure the chiller circuit has been lled according to what is
described in the Audax Pro V2 condensing unit instructions
booklet;
- check the activation of the main switch located upstream of the
indoor unit;
- check that the intake and/or exhaust terminals are not blocked;
- ensure activation of all adjustment devices;
- seal the gas ow regulation devices (if the settings are changed);
- ensure production of domestic hot water;
- check the tightness of the hydraulic circuits;
- check ventilation and/or aeration of the installation room
where provided.
Even if just one single safety check pro-
vides a negative result, do not commis-
sion the system.
To Next Page
Loading...
Need help?
General