IOM / Rooftop Smart and Linéa™ Range - Page 41
PRELIMINARY CHECKS ON
COMMISSIONING
NOTE: Any work on the gas system must only be carried
out by suitably qualified personnel.
Check that the gas supply line can provide the burners with
the pressure and the gas flow rate necessary to provide the
heating output duty.
Measure the pressure on the gas solenoid valve inlet.
Make sure that the gas supply line installation conforms to
the local safety regulations.
Check that the supply air flow is correct.
Check that the air inlet combustion vents and the flue outlet
are fitted and not blocked.
PIPEWORK SOUNDNESS TESTS
All gas pipework must be tested for soundness using
approved methods only. The pipework must not be
connected to the unit during testing at pressure in excess of
60 mbar, as this may cause damage to the gas valve.
Regulations may require that a manual gas shut-off valve is
mounted on the supply pipework external to the unit (not
supplied).
This valve should be suitable for isolating the unit in the
event of an emergency.
When the connections have all be made check the system
for any leaks using approved methods.
ALTITUDE SETTINGS
Natural gas units can operate up to a height of 610 m above
sea level without being altered.
GAS BURNER
GAS BURNER
GAS BURNER
GAS BURNER
GAS BURNER
GAS TYPES
Before installation, check that the local distribution
conditions, nature of gas and pressure, and adjustment of
the appliance are compatible.
These appliance are suitable for use under the conditions
defined by the gas categories listed in the following table
(on next page) for the country of installation.
LG/LD series heating units are factory adjusted for "G20"
type natural gas for direct installation in Great Britain, Spain,
Italy, Denmark, Ireland, Germany, Belgium and France.
For installation in The Netherlands (cat. I
2L
) the gas pressure
should be adjusted for natural gas type G25 as shown in
the following table.
In Belgium this adjustment may be made if the appliance is
installed permanently on a network supplying gas type G25
(Ei).
In France this adjustment may be made if supplied with gas
type G25 (Ei) BUT the appliance MUST be returned to the
factory setting above if it is subsequently supplied with gas
type G20 (Es).
