Version 2: March 2020
7
manual: 0009 0231EN
The gas safety device and electric components can handle a maximum temperature of 60 degrees Celsius. Be
sure that the heater is not mounted in such a way that this temperature will be reached (e.g. by other heaters in
close vicinity).
4. Gas supply information
General
Make sure that an authorised company in the country, in accordance with the local rules and requirements,
installs the gas supply system. Check first if the local gas supply situation and electric supply complies with the
information on the data plate of the heater. Make sure that the gas is clean. Install a gas filter and condensate
trap before the heaters in case the gas is dirty or wet/oily. No guarantee can be given on heaters operating on
gas that is not clean.
Always mount a (easy to be reached) gas tap at the end of the gas line. This gas tap is needed to close the gas
supply to the manually operated heaters to extinguish the flames. In addition, it makes it possible to remove the
heater after use. For data needed to calculate the dimensions of the gas line, see the technical table.
The screw of the pressure measuring nipple on the gas safety device is susceptible to damage. Use a well-
fitting screwdriver #3.
Gas line supply
In case a main gas line supplies the gas to the heaters, make sure that an authorised company in the country
installs the system. To avoid problems, use galvanised or copper tubing for the gas line. First make a calculation
to determine the capacity of the whole system and the diameters of the piping. Use the common available
calculation methods as written in gas pipe installation standards.
Gas hose (in combination with gas line supply)
According to the standard EN419 the connection of the gas heater to the gas line shall be done by a gas hose
with a length of minimal 0,5m to maximum 2,0m. This gas hose shall be made of stainless steel, shall be
approved according EN14800 or a comparable standard that is appointed by the local authorities.
Gas cylinder supply
Gas can also be supplied from LPG gas cylinders. The minimum recommended size is a 11-kg gas cylinder or
larger. Before buying a gas cylinder make sure that the connections of the gas regulator and the gas valve of
the gas cylinder are of the same type. Check with the gas cylinder supplier for the correct size of gas regulator,
and check whether the capacity is enough for the heater(s) that will be supplied. Check also whether the location
of the gas cylinder during use is a safe location and according to the local requirements. Check the technical
table for the maximum gas consumption and gas pressure.
Store the gas cylinders always on ground level in a well-ventilated place, preferably outside the room where the
heater is. In case the gas cylinder is placed in a cylinder housing, or cover, make sure that there is enough
ventilation as requested by the applicable regulations or standards. Never obstruct these ventilation holes. Make
sure that the gas cylinders are used in upright position only and are secured against tipping over during use.
Gas cylinders laying on their side will give liquid gas. This is very dangerous and will give a fire ball when it
reaches the heaters. Make sure that the gas cylinder valve always can be reached easily to close the gas supply
in an emergency. Pay special attention how to change the gas cylinders in a safe way.
Gas hose (in combination with gas cylinder supply)
A gas hose must be inspected frequently and must be changed within the prescribed intervals. Check the hose
every time the gas cylinder is changed, but at least once a month. Avoid twisting or stress of the gas hose.
Twisting or stress will shorten the lifetime of the gas hose. During inspection, check the hose for damage,
splitting, aging and cracking. Pay special attention to the connections. Keep the hoses clean from dirt, moisture
and dust.
Some countries have regulations that gas hoses must be replaced every 2 or 3 years. Please check with the
gas supplier. It is advisable to change the hose every 3 years in case there are no local regulations. Always use
official gas hoses. Replace a gas hose always by a type of the same length, internal diameter and equivalent
quality. For your own safety:
never use air hoses or water hoses.
These hoses are not suitable gas
transportation and will leak quickly!
The gas hose shall always be connected to the heater with the help of hose clips. Not using hose clips at both
ends of the gas hose is very dangerous. Make sure that the gas hose never is heated above 40 degrees Celsius.
