Carrier CCU - Fault Level and Weekly Programming; 7 - FAULT LEVEL (MENU 6); Fault Descriptions and Solutions; Fault Impact Notes

7 - FAULT LEVEL (MENU 6)
Each type of fault can be forwarded to one of the following two changeover contact relays:
- Non-critical fault relay.
- Critical fault relay.
This menu is used to configure which type of fault will be forwarded to which relay (critical or non-critical).
No. Description Setting Unit Display condition
N02 No air ow (*)
0: Non-critical fault
1: Critical fault
1
N03 Fan (*)
0: Non-critical fault
1: Critical fault
1
N04
(Condensation unit
Low pressure for each circuit
High pressure or circuit breaking for each circuit)
0: Non-critical fault
1: Critical fault
1 P17 > 0
N05 Filtration fouled
0: Non-critical fault
1: Critical fault
0
N06 Filtration blocked (*)
0: Non-critical fault
1: Critical fault
1
N07 Temperature sensors (10 KΩ)
0: Non-critical fault
1: Critical fault
1
N08 Electric heater
0: Non-critical fault
1: Critical fault
0 P16 > 0
N09 Humidier
0: Non-critical fault
1: Critical fault
0 P10 > 0
N11 Water leak
0: Non-critical fault
1: Critical fault
0
N13 Temperature set high
0: Non-critical fault
1: Critical fault
0 P07 > 0 or P08 > 0
N14 Temperature set low
0: Non-critical fault
1: Critical fault
0 P07 > 0 or P08 > 0
N15 Relative humidity set high
0: Non-critical fault
1: Critical fault
0 P09 > or P10 > 0
N16 Relative humidity set low
0: Non-critical fault
1: Critical fault
0 P08 > 0 or P10 > 0
NOTE:
- Faults marked (*) shut down the machine
- If the master/slave function is used, the faults dened as critical will stop the unit.
8 - WEEKLY PROGRAMMING (MENU 5)
This menu is only accessible if at least one timer channel is used. Only the congured channels are displayed. The two channels can
be programmed over a week. Each day can have di󰀨erent time schedules. Each channel can have twenty di󰀨erent 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 congured.
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 1 and 7 of terminal block J2).
8.2 - Shifting the temperature setpoints (sub-menu 5.2)
This menu is only visible if P31 = 2 or P32 = 2 is congured.
When the channel is activated, the setpoint shift is activated.
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