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6 Reglermanual - VMGFF102
3.6.2 - Volt-free contact on/off /cooling/heating
If the unit works in the remote operating mode (Remote) and
the automatic heating/cooling changeover function is not
selected and if the user confi guration allows this (heat pump
and interface selection) the operation of the on/off contacts
and the heating/cooling contacts is as follows:
Without multiplexing
Off On cooling On heating
On/off contact Open Closed Closed
Heaing/cooling contact - Open Closed
With multiplexing
Off On cooling On heating On auto
On/off contact Open Closed Closed Open
Heaing/cooling contact Open Open Closed Closed
NOTE: The automatic changeover function (on auto)
selects the cooling or heating mode based on the outdoor
temperature (see chapter 5.2).
3.6.3 - Volt-free setpoint selection contact
Cooling Heating
csp 1 csp 2 hsp 1 hsp 2
Set point selection contact Open Closed Open Closed
3.6.4 - Volt-free demand limit selection contact
100% Limit 1 Limit 2 Limit 3
Demand limit 1 Open Closed Open Closed
Demand limit 2 Open Open Closed Closed
4. SETTING UP CONTROL INTERFACE
4.1 - General features
The interface includes diff erent screens that are listed below:
•
Default screens with direct display of the main
parameters,
• Menu screens for navigation,
• Data/confi guration screens listing the parameters by
type,
• Operating mode selection screen,
• Password entry screen,
• Parameter modifi cation screen.
NOTE: If the interface is not used for a long period, it will go
black. The control is always active, the operating mode
remains unchanged. The interface screen is re-animated,
when the user presses a key. Pressing the key once illumi-
nates the screen, pressing the key a second time leads to a
screen that is related to the context and the key symbol.
4.2 - Default screen characteristics
There are four default screens. Each screen shows:
•
The unit status, its screen number,
• Three displayed parameters.
LOCAL OFF 1 On the left the unit status, on the right
the screen number
Entering water temp Description of the fi rst parameter
EWT 17.2 °C Abbreviation and value with unit of
measurement of the fi rst parameter
Leaving water temp Description of the second parameter
LWT 17.2 °C Abbreviation and value with unit of
measurement of the second parameter
Outside air temperature Description of the third parameter
OAT 21.7 °C Abbreviation and value with unit of
measurement of the third parameter
Pressing the Up or Down key changes one default screen to
another default screen. The screen number is updated.
4.3 - Password screens
Enter password Description of the password entry
screen
0_** Password value
(0 = basic access) Description
The password is entered digit by digit. The cursor is shown at
the current digit that fl ashes. The arrow keys modify the digit
value. The digit modifi cation is validated with the Enter key
and the cursor is moved to the next digit.