27
ENGLISH
Installation Instructions
Commissioning must be done by professionally
qualified personnel. Unical AG S.p.A. will not be
held liable for damage to persons, animals or
objects due to failure to comply with the above
instruction.
Before commissioning the boiler, check that:
3.10 - COMMISSIONING
does the installation meet the specific standards and regulations in force, both relating to the
gas part as well as the electrical part?
do the combustion air intake and flue gas exhaust take place properly according to what is defined by the specific
rules and regulations in force?
is the fuel supply system sized according to the capacity required by the boiler?
Is it equipped with all safety and control devices required by the standards in force?
is the power supply of the boiler 230V - 50Hz?
has the system been filled with water (approximately 0.8/1 bar pressure on the pressure gauge with the pump
stopped)?
Has the condensation drain trap been filled with water as indicated in chapter 3.7?
are any system shut-off gate valves open?
does the gas to be used correspond to the boiler calibration gas?: otherwise, perform the boiler conversion in order to
use the gas available (see section: 4.3”);
this operation must be carried out by technical staff qualified in compliance with the standards in force;
is the gas supply valve open?
has the system been checked for gas leaks?
is the outside main switch ON?
is the system safety valve efficient and is it connected to the drains?
is the condensation drain trap connected to the drains?
has the system been checked for water leaks?
are the ventilation conditions and minimum distances to perform any maintenance
ensured?
have the GAS, HEATING and DOMESTIC HOT WATER pipes been cleaned thoroughly with products suitable for
each circuit?
has a surveillance and protection system against gas leaks been installed? (Optional)
are the system pipes NOT used as the electrical system earthing?
has the system been sized properly bearing in mind the radiator pressure drops?
thermostatic valves, radiator stop valves
has the operator been trained and has the documentation been supplied?
Please tick the operations performed
Switching boiler on and off
NOTE!
For more information
See Technical Info
from site indicated at pag. 2