22
4.5.7.3 - Description of the User 1 Configuration sub-menu
USER 1 CONFIGURATION SUB-MENU [2]
ITEM
FORMAT
UNITS
DEFAULT
COMMENTS
0
USEr MEnu
-
-
When selected this item authorises return to the previous menu.
1 [1]
0/1/2
0
Lead circuit selection
0 = automatic based on the number of start-ups and the operating hours of each circuit
1 = lead circuit A
2 = lead circuit B
2 [1]
0/1
-
0
Circuit capacity increase sequence
0 = equal charge for both circuits
1 = priority charge on one circuit
3 [1]
YES/no
-
no
Ramp loading select. For units with more than one compressor per circuit.
Yes = ramp enabled
No = ramp disabled
This configuration enables the ramp to be activated for heating or cooling (depending on configuration): the
maximum rate (in °C/min) of temperature drop or rise for the heat exchanger water (leaving or entering, upon
configuration). Ramp setting value can be configured in the Setpoint menu.
4
1 to 15
min
1
Delay at start-up. This value is reinitialised after power-up or when both circuits are halted by local, remote
or CCN command. No compressor will be started up until this pause has expired. However, the evaporator
pump command will be activated immediately. The safety lockout loop will not be checked until the pause has
expired.
5
0/1/2/3/4
-
0
Pump sequence select
0 = no pump
1 = one pump only
2 = two pumps with auto rotation
3 = pump #1 manual select
4 = pump #2 manual select
If the auto sequence is selected, the pump change-over occurs when the rotation delay is elapsed. If the
manual sequence is selected then, the selected pump is used in priority. Change-over occurs if one pump
fails.
6 [1]
24 to 3000
hours
48
Pump changeover delay. Displayed if auto pump sequence is selected. This parameter is used for pump
auto-rotation: the control tries to limit the pump run time difference to the pump changeover delay value.
Change-over between pumps occurs when this difference becomes greater than the configured pump
changeover delay.
7
0/1/2/3
-
0
Automatic heating/cooling changeover selection. Permits activation of automatic reset type
0 = none
1 = 0-10 V d.c. reference voltage
2 = temperature difference
3 = outdoor temperature
8
0/1/2
-
0
Demand limit selection
0 = demand limit not selected
1 = demand limit by contact
2 = demand limit by external signal 0-10 V d.c.
9 [1]
0 to 10
Volts
0
Voltage corresponding to 100% of the demand limit
10 [1]
0 to 10
Volts
0
Voltage corresponding to 0% of the demand limit
11
«YES/no»
-
yes
Extended menu select
Yes = menu description available
No = menu description not available
This item authorises activating or inhibiting the menu item expanded display.
12
«YES/no»
-
no
Password for all User Configurations
Yes = password required for all User Configurations (Date, Time Schedule, Broadcast)
No = password require for User menu only
When this item is validated, the User Password will be required for all configurations accessible by the User.
13
nn.n
-
-
Software version number
This item shows the number of the software version used by this controller. Access is read only.
Legend
1
This item shall be masked when not used.
2
Access to menu is read/write.
