Generalities; Connection - Aletra ATLX 55 Installation And Maintenance Manual

6– GAS CONNECTION

6.1 Generalities

First of all it is necessary to check that the device is in conformity with the type of gas distributed. For this
purpose, you must refer to the indications shown on the identification plate.
The gas supply must be appropriated to the power of the heater and be equipped with all the security and
inspection devices required by current standards.
A precise study must be carried out on the diameters of the piping depending on the type and the flow of
gas and the length of the piping. It is necessary to make sure that pressure drops in the piping do not
exceed 5 % of the supply pressure.
The gas connections must be made in conformity with the recommendations for indoor installations
whatever the type of gas, by qualified personnel holder of necessary approvals.
In case of LPG use, be careful with the evaporation capacity of the tank.
Caution: before opening the gas network, check the sealing up to the unit heater solenoid valve

6-2 Connection

The gas connection is made on male gas connection 3/4, located under the device on the left side.
Make sure that the passage for gas is clean and non obstructed (leaves, cobweb, soil, etc.)
Gas connection type :
A- Under 50 mbar natural gas supply (shut off valve + gas filter)
B- Over 50 mbar natural gas supply (shut off valve + gas filter + gas pressure regulators)
C- LPG supply (shut off valve + gas filter + gas pressure regulators)
Gas connection kit*
1– Gas seal
2– Gas flexible F/F 3/4
Connection with air heater (supplied)
3– Gas seal
4– Gas connection M/M
5– Gas pressure regulator
6– Filter gas
7– Gas valve 1/4
For more detail on kit gas, refer to their notice.
7
5
7
6
5
7
6
1
2
C
B
1
4
1
A
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