Configuring The Unit; Unit Parameters - Carrier CCU Mode D'emploi

6 - CONFIGURING THE UNIT

6.1 - Unit parameters

6.1.1 - UNIT TYPE (sub-menu 3.1)
To limit the amount of different software required whilst meeting our customers' need for applications, the CCU CONTROLLER is
provided with a configuration system. It allows the composition of the unit to be configured, along with all the functions which must be
managed by the system
To configure the CCU CONTROLLER, use the menu No.3: PARAMETER and the sub-menu No. 3.1: UNIT TYPE. (Menu on CCU
CONTROLLER display)
These parameters are directly linked to the composition of the unit, and they must not be modified on site.
The procedure for saving these parameters is carried out in the workshop. (To view the type of programming specific to your control,
refer to the configuration guide attached to the unit).
To modify parameters P01 to P99, the unit must be stopped and the configuration unlocked. Parameter P99 (Locking of configuration)
is equipped with a system which counts the number of times the configuration is unlocked.
Most of the parameters can only be modified if the correct authorisation level is accessed in Menu No.8 of the CCU CONTROLLER
(See paragraph 4 in this guide).
Access level No. Description
2 1 On control
Number of speeds or variation
3 2
of air flow rate
3 3 Machine model
3 5 FMA control
Limitation via the supply air
3 6
temperature
3 7 Cooling control
3 8 Heating control
Setting
CONFIGURATION OF THE FANS
1: Outer contact (the push button on the
console acts as a forced stop)
2: Internal timer (the push button on the
console acts as a priority forced stop and
the outer contact as a forced start)
1: One speed
10: Variation of the rotation speed with
increase of the speed via an increase in
cooling control.
11: Variation of the rotation speed with
increase of the speed via an increase in
heating control.
12: Variation of the rotation speed via
cooling and heating control.
13: Variation of the rotation speed with
decrease of the speed via an increase in
dehumidification control.
14: Manual variation of the fan rotation
speed.
15: Variation of the rotation speed with
pressure increase on the raised floor.
16: Variation of the rotation speed depending
on the temperature difference (return/supply
air)
17: Variation for constant flow rate control
1: 50CJ configuration
2: 50CO configuration
0: On/off or gradual 0-10 V
1: 1 MODBUS gradual FMA
2: 2 MODBUS gradual FMA
3: 3 MODBUS gradual FMA
CONTROL SELECTION
0: No limitation
1: With limitation
(Low limit affecting cooling control, high limit
affecting heating control)
0: No cooling control
1: One chilled water coil
2: One direct expansion system
0: No heating control
1: One hot water coil
2: One electric heater
3: Electric heater or hot water coil via contact
By default Display condition
1
P05 = 0
P07 > 0
P08 > 0
P07 > 0 and P08 > 0
14
P09 > 0
P03 > 2 and P05 > 0'
1
0
P11 ≠ 0
0
0
0
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