C0240111-04-05-GB
5
USER PROGRAMMING
The following settings can be modified using the interface.
5.1) SETTING THE OPERATING MODE
Caution:
Do not switch from the summer to winter mode unless the inlet temperature is above
15°C.
Do not switch from the winter to summer mode unless the inlet water temperature is below
30°C.
There are various ways of setting the operating mode of the unit.
The set operating mode may be any one of the following, as long as they are compatible with the unit:
Operating mode
Description
W3000
base
Chiller
ch
Chiller
rec
Chiller plus recovery
heatpump
hp
Heat pump
summer ch
Chiller in summer mode
summer ch+rec
Chiller plus recovery in summer mode
summer rec
Recovery in summer mode
recovery
Recovery only
summer auto
Automatic in summer mode
winter hp
Heat pump in winter mode
winter rec
Recovery in winter mode
winter auto
Automatic in winter mode
auto
Automatic
The following procedures have a priority: in the event of conflicts between opposing settings the following
priorities apply:
- highest priority:
change through parameter
sum/win from digital input
ch/ch+rec from digital input
- lowest priority:
change through protocol
Using the parameter:
Make sure the unit is “Off”. Access the “setpoint menu” and display the “Operating mode” parameter.
Move to the “Operating mode” parameter by pressing [Enter] and modify the parameter by pressing [Up]
or [Down]. Press [Enter] again to confirm. If the set message continues to be displayed it means that
operating mode has been changed.
In the W3000 base the key sequence is: switch off the unit using the [ON/OFF] key / press the [setpoint]
key / select MODE with the [UP] or [DOWN] keys / press [Enter] / press [Enter]. At this point the cursor
flashes. Press the [UP] or [DOWN] keys to select either “ch”= chiller or “hp”= heat pump. Press [Enter]
to confirm.
Using the Sum/Winter from digital input command:
Only for heat pump units and only if the digital input is present.
Check that the “Sum/Win enable from digital input” parameter in the “user menu” is set to “Yes”.
When the contact is open the unit is in the “winter” mode, when the contact is closed the unit is in the
“summer” mode. Switching the digital input switches the unit off, changes the operating mode and
switches the unit on again.
In the W3000 base access the “user menu” / select “DI S” by pressing the [UP or DOWN] key/ press
[Enter] to view the current setting / press [Enter] to see the current setting flashing and change it using
the [UP or DOWN] key / press [Enter] to confirm the new setting.
23
Содержание W3000 compact
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