Firmware V1.41 V1
08.11.2022
85/219
•
•
•
•
•
5.9.4 Changes to the Control Behaviour during HRC Mode
Some functionality is handled differently in HRC mode. The key points are listed below.
Monitoring
No high pressure fault is reported.
No compressor disable / unload in the event of high-pressure fault (except for exceeding
HP EMERG.-OFF
).
The HRC mode is shown on the display of the system centre or operator terminal,
HRC mode
active
: HP-Soll
HRC
89 b
HRC-Betrieb
not active
:
HP-Soll 89 b
Regulation of the gas cooler outlet temperature
A fixed speed can be specified for the gas cooler (necessary for integrated outdoor compressor in the gas
cooler).
The request is performed via the CAN bus (HRC 3010 A required).
5.9.5 HRC mode parametrisation
Description of the parameters that are necessary for the HRC mode. The parameters mainly refer to the high
pressure and gas cooler regulation in HRC mode.
No.
Parameter
Menu
Entry
Default
Dim.
Description
1
HRC operation
3-2-2-3
YES / NO
NO
-
Enable of the HR mode
2
WRG-Modus
3-2-2-3
CAN BUS /
Digital Input
Digital
input
-
Selection menu for how HR mode should be activated.
Digital input
or
via CAN bus.
3
Standz. WRG
3-2-2-3
0...180
10
Min
Standstill time of the HRC mode after the last
deactivation. Safety function against continuous
activation and deactivation of the HR mode due to
cycling request signal at the digital input or on the
CAN bus.
4
Verz.Stör.WRG
3-2-2-3
0...720, --
360
Min
An alarm is generated in the case of cycling HRC
request signal within the Standzeit WRG. The
generation of this alarm can be delayed.
5
Sollw.Schieb.
3-2-2-3
YES / NO
NO
-
The HP setpoint shift is deactivated / activated via the
analogue input 6 with this parameter.
Attention:
Double occupancy of the analogue input
with the to shift. For the HP setpoint shift via CAN bus,
this parameter must be set to "NO" and the parameter
"
WRG-Modus
" must be set to CAN-BUS.
6
Off.ext.Sig.
3-2-2-3
0...25
0
%
Offset on the request signal for HP setpoint shift via
analogue input 6. This parameter is visible if the
parameter "
Sollw.Schieb.
" is configured to "YES".
7
tG Anheb.WRG
3-2-2-3
YES / NO
NO
-
Parameter to go to a fixed tg-setpoint in HRC mode.
This value can be configured with the "
tG-Soll WRG
"
parameter.
8
tG-Soll WRG
3-2-2-3
0...30
0
°C
tg-setpoint that can be moved to in HR mode
(dependent on the parameter "
tG Anheb.WRG
", also
the visibility of the parameter)
9
Lü. AUS im WRG
3-2-2-3
YES / NO
NO
-
The fans in HRC operation can be switched off in
HRC mode. This parameter must be configured to
"YES" and the parameter "WRG-Modus" must be set
to "CAN-BUS" for this. If the "Switch off fan" request
arrives via the CAN bus, these are unloaded in HR
mode.