Carrier CCU - 6 Configuring the Unit; Unit Parameters

EN
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 conguration system. It allows the composition of the unit to be congured, along with all the functions which must be
managed by the system
To congure 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 modied on site.
The procedure for saving these parameters is carried out in the workshop. (To view the type of programming specic to your control,
refer to the conguration guide attached to the unit).
To modify parameters P01 to P99, the unit must be stopped and the conguration unlocked. Parameter P99 (Locking of conguration)
is equipped with a system which counts the number of times the conguration is unlocked.
Most of the parameters can only be modied 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 Setting By default Display condition
CONFIGURATION OF THE FANS
2 1 On control
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
3 2
Number of speeds or variation
of air ow rate
1: One speed
14
P05 = 0
10: Variation of the rotation speed with
increase of the speed via an increase in
cooling control.
P07 > 0
11: Variation of the rotation speed with
increase of the speed via an increase in
heating control.
P08 > 0
12: Variation of the rotation speed via
cooling and heating control.
P07 > 0 and P08 > 0
13: Variation of the rotation speed with
decrease of the speed via an increase in
dehumidication control.
P09 > 0
14: Manual variation of the fan rotation
speed.
15: Variation of the rotation speed with
pressure increase on the raised oor.
16: Variation of the rotation speed depending
on the temperature difference (return/supply
air)
17: Variation for constant ow rate control
P03 > 2 and P05 > 0'
3 3 Machine model
1: 50CJ conguration
2: 50CO conguration
1
3 5 FMA control
0: On/off or gradual 0-10 V
1: 1 MODBUS gradual FMA
2: 2 MODBUS gradual FMA
3: 3 MODBUS gradual FMA
0
CONTROL SELECTION
3 6
Limitation via the supply air
temperature
0: No limitation
0
P11 ≠ 0
1: With limitation
(Low limit affecting cooling control, high limit
affecting heating control)
3 7 Cooling control
0: No cooling control
01: One chilled water coil
2: One direct expansion system
3 8 Heating control
0: No heating control
0
1: One hot water coil
2: One electric heater
3: Electric heater or hot water coil via contact
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