Touch Screen
33
4.12
SECONDARY CIRCULATOR
It allows the management of a secondar or re-launching circulator to serve the plant. The following functions should be active:
•
Secondary circulator management function, see the related paragraph in the user’s-installer’s manual of the unit;
•
Ambient thermostat function, see paragraph 4.7.5.
The secondary pump will be activated if there is the thermostat call (zone of Touch Screen is fulfilled).
After the end of the plant call (zone of Touch Screen is fulfilled), the secondary pump will turn off after a delay of
P02
(post-
pumping).
The thermoregulation of the heat pump is independent of the thermostat call.
When the heat pump is off, the secondary (re-launching) circulator will be off regardless of the thermostat call.
4.13
OTHER FUNCTIONS
For any information related to other functions of the chillers of fancoil units that are reported in the display of Touch Screen remote
control panel (e.g. enablement or activation of plant electrical heater, sanitary electrical heater, boiler integration, defrosting cycle,
water-side or air-side anti-freeze heaters, etc…), please refer to chillers’ and fancoils instructions manuals.
4.14
SPECIAL FUNCTIONS
From the main menu, choosing the icon “additional functions”, you go to the following menu:
Figure 35. Page of "Special functions".
The available functions are described in the following paragraphs.
4.14.1
SCREED FUNCTION
By pressing the icon related to the screed function you access to a new menu in which you can choose which units should be
enabled to this function:
Figure 36. Chiller multiple choice, screed function.
Once you choose the chillers which participate to this regulation, the system has the following behaviour:
•
All the heat pumps enabled in the screed function are forced to heat mode.
•
All the heat pumps not enabled in the screed function are forced to off mode.
•
The heat pumps set-point is given by the parameter “Screed function set”, which can be set among the service parameters
(
Configuration -> Service menu -> Keyboard ->
Par 36/65
: ”
Screed function Set”
).
•
The function has a duration given by the service parameter:
Configuration -> Service menu -> Keyboard ->
Par 37/65
:
”Duration screed function”
. After such period the system returns to the previous settings.
Summary of Contents for TOUCH SCREEN N
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