Rittal 3363 Series, Assembly And Operating Instructions Manual

Page: 14 / 34

14 Rittal air/water heat exchanger assembly instructions
6 Operation
EN
6.1.6 Setting of system messages
To change the system messages keep the H4 “set”
key pressed for 5 seconds. The controller is now in
programming mode. While in programming mode,
if you do not press any buttons for approx. 60 sec.,
the display will first flash, then the controller will
switch back to normal display mode.
You can then navigate in the levels with the H2 (
▲
K
1
)
or H3 (
▼
K
2
) keys (see tab. 4).
The level is selected by pressing the H4 button.
The parameters are changed with the H2 (
▲
K
1
) or
H3 (
▼
K
2
) keys. Press the H4 “set” key for 5 seconds
to confirm the new value.
6.1.7 Programming and control
of the Basic controller
See also fig. 25 on page 20.
Tab. 6: Setting the setpoint
Tab. 7: Setting the system messages, monitoring of the min./max. enclosure internal temperature
Progr.
level Display
screen Parameters Min.
value Max.
value Factory
setting Description
1 °1 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 with-
in a range of +20°C to +55°C. When the setpoint is
reached, the H2 (
▲
K
1
) key is lit continuously.
Progr.
level Display
screen Parameters Min.
value Max.
value Factory
setting Description
0 Ps – – – – No function
2 H5 Software version
number – – – Displays the current version number of the device
software.
3 AH Alarm – maximum
temperature AL +150 50 Maximum temperature alarm (NOT in relation to the
nominal value). HI is displayed alternating with the
internal temperature. The “HI” alarm is displayed
when the internal temperature > AH.
The alarm stops when the internal temperature
< AH –2K.
4 AL Alarm – minimum
temperature –50 AH 20 Minimum temperature alarm (NOT in relation to the
nominal value). LO is displayed alternating with the
internal temperature. The “LO” alarm is displayed
when the internal temperature < AL.
The alarm stops when the internal temperature
> AL +2K.
5 r8 Reset of r6 and r7 0 1 0 Reset of r6 and r7. Set this parameter to 1 to reset the
stored maximum and minimum values of r6 and r7 to
the respective current actual value.
6 r7 Querying of the
min. internal
temperature –50 +150 0 Stores the min. internal enclosure temperature
occurring after > 1 min.
7 r6 Querying of the
max. internal
temperature –50 +150 0 Stores the max. internal enclosure temperature
occurring after > 1 min.
6.1.8 Reset r6 and r7
(min./max. internal temperature)
To reset the stored internal temperatures keep the
H4 “set” key pressed for 5 seconds. Navigate to level
r8 with the H2 (
▲
K
1
) or H3 (
▼
K
2
) keys. Press the
H4 “set” key and change the parameter from 0 to
1 using the H2 (
▲
K
1
) or the H3 (
▼
K
2
) keys.
Press the H4 “set” key for 5 seconds to confirm
resetting the values.