Commissioning - Unical MODULEX EXT Series Installation And Maintenance Instruction

commissioning must be done by professionally

qualified personnel. Unical will not be held liable

for damage to persons, animals or objects, due to

failure to comply with the aforesaid instructions.

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 3.8?

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;

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 completed operations

Switching boiler on and off

To switch the boiler on and off, see the Ufly reg-

ulator manual

Before commissioning the boiler, check the following:

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