Dantherm HEX 70 Service Manual page 8

Functional description of HEX 70/90/120 and parts,
Control strategy
Internal
fan strategy
External fan strate-
gy
8
The control board controls fans according to the air temperature in the cabinet of the
top. Higher temperatures equal higher fan speed.
This illustration and the tables below show the speed of the internal fan according to
different temperatures.
Internal
HEX 70
temp.
IT 0 18°c
IT 1 20°c
IT 2 30°c
IT 3 50°c
This illustration and the tables below the speed of the external fan according to differ-
ent temperatures.
Internal
HEX 70
temp.
IT 0 28°c
IT 1 30°c
IT 2 35°c
IT 3 50°c
Rotation
HEX 90/120
speed
16°c IR 1
20°c IR 2
30°c
50°c
Rotation
HEX 90/120
speed
26°c IR 1
30°c IR 2
35°c
55°c
continued
Top temperature inside the cabinet
HEX 70 HEX 90/120
1100 RPM 1400 RPM
1920 RPM 2250 RPM
Top temperature inside the cabinet
HEX 70 HEX 90/120
1100 RPM 950 RPM
1850 RPM 1400 RPM