1033770
We reserve the right to alter specifications
Air heater unit ATD (A, G)
GB
3
On delivery
The air heater unit is designed to withstand normal loads
during transport. After transport and unloading it is
important to check that no damage has occurred. Check
in particular the fins of the heat exchanger and the outer
casing and connecting pipes of the air heater unit. Any
transport damage should be reported immediately to the
carrier and to Luvata. Also make notes on the consign-
ment note.
Installation and pipe connections
The air heater unit must be permanently installed and
positioned so that the required air supply is obtained.
The size of the air heater unit and the premises determine
the location of the air heater unit. The normal installation
height of the air heater unit is 2.5–3 m from the floor but
always at least 2 m. The distance from the ceiling and
corner must be at least 0.5 m. The ATDA air heater unit
is designed to be installed both in ceilings or on walls
and the ATDG only on walls. Use brackets (accessories
ATDZ-03, ATDZ-10 and ATCZ-05) during installation,
refer to Accessories. Both the air heater unit and
accessories are provided with holes which are designed for
installation.
See Figure 2, Figure 3 and Table 1 for dimensions for
pipe connections.
Ø 22 x 1
Ø 22 x 1
Out
In
Figure 2. Pipe connection dimensions, ATDA
Figure 3. Pipe connection, ATDG
Table 1. Pipe connection dimensions, ATDG
ATDG
Connection A
Connection B
33
25
G25
44
32
G25
55
32
G32
Electrical connection
The fan motor must be connected to a lockable safety
switch. The safety switch must not be used to start and
stop the unit, but it must be started/stopped using other
external equipment.
Ahead of the motor a motor cut-out should be fitted
which must not be set higher than the motor’s maximum
permitted current. A motor cut-out is not necessary on
motors with an integrated temperature monitor when the
temperature monitor is connected.
The connecting electrical cable is connected as illustrated
in the wiring diagram in the section headed Connection
diagram. Then check that the fan rotates in the direction
of the rotation arrow. The arrow is located on the outside
of the fan ring.
Dismantling
When dismantling the air heater unit from a system,
it must first be drained of all liquid.
NOTE:
Environmentally hazardous liquids must be
collected in a container and left for disposal/recycling.
Installation
