Technical data

8
the gas supply seals, both internal and external;•
the gas flow rate setting as required by the generator’s power rating;•
the gas supplied to the appliance is of the type for which it is designed;•
the gas supply pressure in relation to the admitted range specified on the •
nameplate;
the gas supply system is correctly rated for the capacity required by the appliance, •
and that it is equipped with all safety and control devices prescribed by current
regulations.
Do not use gas pipes to ground electrical appliances.
IF YOU SMELL GAS:
Do not operate electrical switches, the phone or any other equipment which may •
generate sparks.
Immediately open the doors and windows to allow fresh air to enter the area.•
Close the gas valve.•
Contact professionally qualified personnel for assistance.•
2.2 NOTES ON OPERATION OF THE APPLIANCE
The series B15 hot air generator is an independent heating appliance with sealed circuit
and forced draw.
The appliance can be used with natural gas (G20).
It is designed for installation inside the room to be heated.
The combustion circuit is sealed in relation to the room and corresponds to the require-
ments of EN 1020 for type C appliances: the combustion air intake and fumes exhaust are
outdoors and are driven by a blower in the combustion circuit.
The appliance is homologated as type B for installations in which the combustion air is
drawn directly from the room itself.
The generator is controlled by a room thermostat (not supplied). When the thermostat
trips, the controller waits for a pre-plunge delay of around 40 seconds, and then ignites
the burner.
The detection electrode senses the flame. If it fails to detect a flame, the controller locks
out the appliance.
Combustion products are sent through the heat exchangers which are subject to an ex-
ternal flow of air from the fan, thus delivering hot air to the room.
The flow of air can be adjusted vertically with the horizontal fins of the delivery grille.
On request, a vertical fins kit is available to enable the direction of the flow of air to be
adjusted horizontally.
If the heat exchangers overheat due to a malfunction, a limit thermostat trips and shuts
off power to the gas valve, which in turn cuts off the supply of gas to the burner. The gen-
erator must be reset manually once the limit thermostat has tripped, using the remote
control.
A blower upline of the burner mixes the air and gas and expels the combustion fumes.
The generator can run in HEATING mode (WINTER mode) and also provides a pleasant
flow of fresh air during the summer in FAN ONLY mode (SUMMER mode). For further
information see paragraph "4.1 SWITCHING ON AND SWITCHING OFF → 29".
2.3 TECHNICAL MANUFACTURING CHARACTERISTICS
Series B15 hot air generators are supplied complete with: