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Hysteresis active
Hysteresis for blocking active cooling. The outdoor temperature must fall
below Active block limit by at least this much for active cooling to be un-
blocked.
Passive block limit
Outdoor temperature limit for blocking passive cooling. Below this tempera-
ture no cooling is used.
Hysteresis passive
Hysteresis for blocking passive cooling. The outdoor temperature must fall
below Passive block limit by at least this much for passive cooling to be un-
blocked.
3�6�10�4 surplus cooler
The settings in this menu are used only if the plant has a surplus chiller.
Cooler set point
Set point for the surplus chiller controller. This is the temperature it will try to
cool down to.
P-area
P-area for the surplus chiller controller.
I-time
I-time for the surplus chiller controller.
3�6�11 manual override
The manual override sub menu lists all the outputs and some other signals that
can be manually overridden. In one setting the value to override the controller
is chosen, and another activates and deactivates the override. When a manual
override is deactivated the controller instantly takes over the signal.
In the event that an operator forgets to deactivate a manual override, the sig-
nal will automatically return to automatic after 30 minutes. It will also return to
automatic when the system is restarted.
The first item in the menu is the setting for fast mode. This setting can be used
when the system is tested, and makes the integral change 60 times faster than
normal. This setting will not automatically be disabled.
3�7 expansion modules
This menu is used to install and uninstall expansion modules. Every type of
expansion module has its own sub menu. All connected and working modules
are listed under respective menu. In these menus they are identified using the
serial number. The serial number is printed on each module.
Danfoss – 29
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