22
Rittal air/water heat exchanger assembly instructions
6 Operation
EN
6.2.4 Editable parameters
See also Fig. 20 on page 23.
Tab. 4: Editable parameters
Progr.
level
Display
screen
Parameter
Min.
value
Max.
value
Factory
setting
Description
1
St
Internal enclosure
temperature
setpoint T
i
20
68
35
The setting of the enclosure internal temperature
is preset at the factory to 35°C and may be altered
within a range of 20 – 55°C.
2
Mod
Control mode
0
1
0
Control mode setting. The temperature control is
made as factory setting with the magnetic valve
(0). It is, however, possible to change the tempe-
rature control by starting and stopping the internal
fan (1); the magnetic valve then remains perma-
nently open. You must obtain the manufacturer’s
consent before changing to control mode (1).
3
Ad
Master-slave
identifier
0
19
0
See “6.2.7 Setting the master-slave identifier”,
page 24.
4
CF
Temperature
conversion
°C/°F
0
1
0
The temperature display can be switched from
°C (0) to °F (1). The corresponding LED displays
the current unit of temperature.
5
H1
Setting for
switching
difference
(hysteresis)
2
10
5
The air/water heat exchanger is preset in the
factory to a switching hysteresis of 5 K. This
parameter should only be changed in consultation
with us. Please contact us for advice.
6
H2
Differential for error
message A2
3
15
5
If the internal enclosure temperature exceeds the
set value by more than 5 K, then error message
A2 (enclosure internal temperature too high)
appears on the display terminal. If necessary, the
differential may be altered here within the range of
3 – 15 K.
Summary of Contents for SK 3209. Series
Page 2: ......
