Weekly Programming (Menu 5); Ventilation On Sub-Menu; Shifting The Temperature Setpoints (Sub-Menu 5.2); Using The Weekly Programming - Carrier CCU Controller Bedienungsanleitung

8 - WEEKLY PROGRAMMING (menu 5)

This menu is only accessible if at least one timer channel is used. Only the configured channels are displayed. The two
channels can be programmed over a week. Each day can have different time schedules. Each channel can have twenty different
programmes.
A program includes the hours and the days for activation and deactivation of the channel.
TIMER CHANNELS:

8.1 Ventilation on sub-menu 5.1

This menu is only visible if P01 = 2 is configured.
When the channel is activated, the fan is authorised to start up. (To ensure this channel is active, check that no shunt has been
created on terminals 4 and 5 of terminal block J5).

8.2 Shifting the temperature setpoints (sub-menu 5.2)

This menu is only visible if P31 = 2 or P32 = 2 is configured.
When the channel is activated, the setpoint shift is activated.

8.3 Using the weekly programming

Weekly program
V E N T I L A T I O N
P R O G . : 0 1
S C H E D U L E :
D A Y :
The first line indicates the timer channel (example VENTILATION ON). On the second line, the digit indicates the step for the
programme currently being viewed. The cursor positioned on the box using the ⇑ and ⇓ buttons allows us to scroll through the
program steps.
The third line is used to enter the time for activating and deactivating the displayed program step. You can enter the hours and
minutes using the number pad.
With the cursor positioned on the NO box, press the ⇑ button to bring up the word "YES"; this program step is taken into account.
Press the ⇓ button to bring up the word "NO"; this program step is not taken into account. The cursor switches to the "NO" box
after having moved to the fourth line.
The fourth line is used to select the days of the week. They are in the following order: Monday, Tuesday, Wednesday, Thursday,
Friday, Saturday, Sunday.
Position the cursor on the selected day and press the ⇑ button to bring up the abbreviation for the day or press the⇓ key to clear
the text. Only the displayed days are taken into account.
Each operating day needs to be programmed.
The text "0: MENU" is only displayed if the cursor is on the box on line 2. In this position only, the 0 digit key can be used to return
to the previous menu.

9 - CONTROL

●
Progressive control
This may be proportional or proportional integral.

- Proportional control

To obtain the strictly proportional, set the integral time (setting configuration) to the value of 0 seconds. Control is carried
out continuously. At each scan, the controller compares the measurement and the setpoint and calculates the control value
proportionally to the discrepancy. With this type of control, there is always a discrepancy between the measurement and the
setpoint.
To stabilise the control, the proportional band must be increased. This type of control is recommended if all stages are controlled
as on/off (example: electric heater).
- Proportional-integral control
Proportional control is carried out continuously (see above). The integral calculation is carried out every 15 seconds. The value
obtained is added to that calculated proportionally. The proportional action allows the response to the measurement to be
accelerated based on the discrepancy between the measurement/setpoint. A high proportional band value allows the control loop
to be stabilised, but decreases the response speed. A value which is too large will lead to oscillations of a high amplitude during
start-up.
The integral action allows this discrepancy between the measurement and the setpoint to be cancelled. A high integral time allow
the control loop to be stabilised, but increases the time taken to cancel the discrepancy.
- Staged control
If the value measured differs from the setpoint upwards or downwards depending on the type of control to be obtained, the first
stage is triggered. If this value differs from the differential calculated between stages, the second stage is triggered, and so on
and so forth.
●
Control of the "Target" temperature
This is proportional or proportional integral.
- Cooling control
The master control is increased if the temperature exceeds the setpoint.This value is broken down according to the parameter
settings (unit type parameter) and is:
• Progressive for the chilled water valve control.
O N T I M E R
A C T I V A T E D E A C T I V A T E
0 0 : 0 0
M O T U W E T H
EN - 22
P R O G R A M
C O N F I R M
0 0 : 0 0
F R S A S U
N O
0 : M E N U