Carrier 42N_S - NTC Control Alarm Status; NTC Control LED Status Summary; NTC Control Alarm Codes

29
42N_S 42N_E
English
NTC Control
Operation of STATUS and CCN leds
Alarm number Description of alarm (60msec on, 60msec o if not otherwise indicated) Pulse number
ND Unit not fed or card not powered because of failure Always o
ND Card fed but microprocessor not active or broken Always on
ND
Card is working without application software or Bootloader is initialised (normally at start-
up for a few seconds)
On for 800ms o for 200ms (1 HZ)
ALARM 1 The RAT sensor detects an out-of-range value for 192 consecutive seconds 1
ALARM 2 The changeover sensor detects an out-of-range value for 192 consecutive seconds 2
ALARM 3 The Supply Air sensor detects an out-of-range value for 192 consecutive seconds 3
ALARM 4
The Air sensor of SUI remote control detects an out-of-range value for at least 192
consecutive seconds
4
ALARM 5
CO2 sensor (if any) detects a value lower than 300ppm (15%) for at least 192 consecutive
seconds
5
ALARM 6
Incorrect operation of the condensate drainage pump (if any)
t 8JUIQVNQDPOUBDUJOTJEFUIFVOJU
The contact is open for 10 consecutive minutes
t 8JUIQVNQDPOUBDUPVUTJEFUIFVOJU
The contact is still active after the 4
th
reading
6
ALARM 7 UV lamp (if any) not working 7
ALARM 8
Communication error with a remote control (CRC2, ZUI if failure after 3 consecutive
communication attempts
8
ALARM 9
Communication error with Master unit. If “temperature check” message is not received
within more than 10 minutes
9
ALARM 10
Communication error with Leader unit. If “temperature check” message is not received
within more than 10 minutes
10
ALARM 11
CO2Tvoc reading error. If no Co2Tvoc reading is received by the Leader unit within more
than 10 minutes
11
ALARM 12
Communication error with Master Zonig. If no Zoning value is received by the Master
within more than 10 minutes
12
ALARM 13 Maintenance required 13
ALARM 14 EEprom error. If checksum is wrong 14
ALARM 15
Electric heaters (if any) error
t *GUIF4VQQMZ"JSUFNQFSBUVSFTFOTPSEFUFDUTBWBMVFMPXFSUIBOUIFNJOJNVNBENJUUFE
value for 10 consecutive minutes
Or
t *GUIF4VQQMZ"JSTFOTPSUFNQFSBUVSFEFUFDUTBWBMVFIJHIFSUIBOUIFNBYJNVN
admitted value for 5 consecutive seconds
15
ALARM 16 Conguration error. An inaccurate conguration value of the card is detected 16
ALARM 17
ALARM 1 or ALARM 2 or ALARM 3 or ALARM 4 or ALARM 5 or… ALARM 15
If the “Summary Alarm Enable” decision indicated in table ALRMDEF is correct, only
this alarm is displayed. When any bit in Alarm Status is set, the alarm displayed will be
“Summary Alarm – Alarm Status XX”
17
ALARM XX The card is not working correctly