ATDC
GB
WWW.LUVATA.COM 9
Subject to alteration.
Technical data
Operating data
Max air temperature around the motor: +40°C
Min air temperature around the motor: -15°C
ATDC:
Max permitted operating pressure: 1,6 MPa at 100°C
1,0 MPa at 150°C
All heat exchangers are leakage tested using dry air
under water.
Heat exchanger
The unit heater’s heat exchanger is manufactured of tubes
that are mechanically expanded onto the fins. The fins are
manufactured of whole plates without slots to avoid dust
and fibres collecting on the fin structure. The fin is lined
with a hydroscopic material to prevent condensated water
to enter the air flow.
Motor/Fan
The fan unit’s motor is an outer rotor motor, journalled
on ball-bearings and an automatically resetting thermal
cut-out (not size 44-3). Fan blades are made of formed,
galvanised sheet steel or aluminium. The fan unit has an
enamelled black finish.
Protection classes
The degree of protection provided by the fan unit casing is
shown in table 4a.
Motor data
Stated on the unit heater’s data plate.
Weight and volume
The net weight and inner fluid volume of the ATDC is
stated on the unit heater’s data plate.
ATDC
Speed
(rpm)
Rated
output
(kW)
Rated current (A), 50 Hz
Thermal
cut-out
Protec-
tion
class
1-phase
230 V
3-phase
400 V
∆
3-phase
400 V
Y
33-1-2
1360
980
1)
0,11
0,54
0,45
-
-
-
-
Yes
IP44
44-1-2
1400
0,16
0,73
-
-
Yes
IP44
44-3-2
1430
0,15
-
0,55
-
No
IP44
55-1-2
920
0,29
1,65
-
-
Yes
IP54
55-3-2
1350
980
1)
0,65
0,46
-
-
1,15
-
-
0,79
Yes
IP54
66-1-1
908
0,37
1,7
-
-
Yes
IP54
66-3-1
1394
1153
1)
0,84
0,64
-
-
1,65
-
-
1,05
Yes
IP54
1) The speed is obtained through reconnections in the motor,
see electrical connection.
Table 4 a. Technical data, fan unit.
Table 4 b. Speed with accessories for fan control.
ATDC-33-1
ATDC-44-1
ATDC-55-1
ATDC-66-1
230 V
1360
1400
920
900
150 V
1160
1030
420
640
130 V
980
750
340
505
115 V
850
600
280
430
100 V
680
500
240
355
80 V
500
380
190
270
= Supplied speed