18
Rittal air/water heat exchanger assembly instructions
6 Operation
EN
6.2.5 Editable parameters
See also fig. 25 on page 20.
Tab. 8: Editable parameters
Progr.
level
Display
screen
Parameters
Min.
value
Max.
value
Factory
setting
Description
1
St
Internal enclosure
temperature
setpoint T
i
20
55
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
temperature control by starting and stopping
the internal fan (1); the magnetic valve then
remains permanently open. To use this control
mode, the Eco parameter must be changed from
1 (on) to 0 (off).
3
Ad
Master-slave
identifier
0
19
0
See “6.2.9 Setting the master-slave identifier”,
page 21.
4
CF
Change-over °C/°F
0
1
0
The temperature display can be switched from
°C (0) to °F (1). The corresponding LED displays
the current temperature unit.
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.
26
ECO
Eco-mode operation 0
1
1
Eco-mode OFF: 0 / Eco-mode ON: 1
