Heater connection diagram
Important. Application of adequate thermal control systems on feeder lines is mandatory. Performance of all electric
heaters must be periodically controlled to avoid damage due to ice build-up. Modine is not liable in any way for defects
caused by non detected malfunctions. For models supplied with wiring in a junction box, remove the cover to make the
connection. It is compulsory to use power cables with a minimum cross-section according to the technical standards
in force in the country of installation, depending also on the laying method, the length of the cables and their type. To
minimise the risk of indirect contact, it is advisable to earth the unit, using the earth pole (where present). For further
information please refer to the diagrams supplied with the model.
AGD2 - Ø230 mm fan diameter unit
Model
Rows
Total power
230V/1/50-60Hz Connection PRESET
RBB1
L
42
www.modine.com
AGD "ED"
21E49R
21A49
Ø315
21E49
-
4
6
W
560
560
RBB2
SD
N
22E49
22A49
-
-
4
6
1120
1120
=
yellow-green
L
=
black
N
=
black
RBB
=
low power electric heater in coil
SD
=
junction box (heaters)
23A49
24A49
25A49
-
-
-
6
6
6
1680
2100
2520