Riello 20120382, Инструкции для установщика и технической поддержки

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PRO-
90
EN
HEATING STANDBY COOLING
Outdoor
temperature
* This threshold is not applicable for the machines of NXC series.
Heating
threshold
Cooling
threshold
PARAMETER CONDITION
ON/OFF STATUS CONTROL TYPE HEATING / COOLING
LOCAL MODE
SELECTION
HEATING / COOLING
Remote CONTACT HC_SEL OUTSIDE TEMPERATURE OPERATING
METHOD
Off - - - - - Heating
On Local Cooling - - - Heating
On Local Heating - - - Cooling
On Local Active - - > Cooling threshold Heating
On Local Auto - - < Heating threshold Heating*
On Local Auto - - Between heating and cooling thresholds Standby
On Remote Auto Cooling mode - - Heating
On Remote - Heating mode - - Heating
On Remote - Auto mode - > Cooling threshold Heating
On Remote - Auto mode - < Heating threshold Heating*
On Remote - Auto mode - Between heating and cooling thresholds Standby
On RCN - - Cooling - Heating
On RCN - - Heating - Heating
On RCN - - Auto > Cooling threshold Heating
On RCN - - Auto < Heating threshold Heating*
On RCN - - Auto Between heating and cooling thresholds Standby
3.5.3 Heating/cooling/stand-by mode
Switching from one mode to the other is possible for all NXH/
NXC units but only the NXH versions can switch to heating
mode. There is also the possibility to automatically switch
from cooling to heating mode.
This is decided by the external probe that through two pre-
set threshold values (heat and cool thresholds) adjusts the
machine operation.
Before switching from heating to cooling mode, the unit go-
es first in standby mode; in this case it is electrically powe-
red but the compressor is at a standstill. The diagram below
shows what said so far.
The table below compares, according to the machine sta-
tus and control type, the parameters that manage the au-
tomatic Cooling/Heating/Standby switching according to
the different modes, which are namely:
• Local mode: Switching is managed from the unit con-
trol panel.
• Contacts: Switching is managed through the contacts.
The control must be of the remote type.
• HC_SEL: Switching is managed if the control type is of the
CRN type.
* Not applicable to NXC series machines.