Carrier 42NS15 Manual De Instalación Y De Uso página 29

NTC Control
Operation of STATUS and CCN leds Fig. 29d
Make all connections and position the covers of the
switchboard.
After the unit has been connected to the mains, the red led
"Status" blinks and this can be seen through the window of
cover 1.
If the unit is transmitting or receiving data from the remote
controls, the CCN green led lashes.
Warning:
Prior to any other operation on the electric components of
the electric panel, make sure power supply is disconnected.
Operation of STATUS and CCN leds
Alarm number Description of alarm (60msec on, 60msec of if not otherwise indicated)
ND Unit not fed or card not powered because of failure
ND Card fed but microprocessor not active or broken
Card is working without application software or Bootloader is initialised (normally at
ND
start-up for a few seconds)
ALARM 1
The RAT sensor detects an out-of-range value for 192 consecutive seconds
ALARM 2 The changeover sensor detects an out-of-range value for 192 consecutive seconds
ALARM 3 The Supply Air sensor detects an out-of-range value for 192 consecutive seconds
The Air sensor of SUI remote control detects an out-of-range value for at least 192
ALARM 4
consecutive seconds
CO2 sensor (if any) detects a value lower than 300ppm (15%) for at least 192
ALARM 5
consecutive seconds
Incorrect operation of the condensate drainage pump (if any)
ALARM 6 The contact is open for 10 consecutive minutes
The contact is still active after the 4
ALARM 7 UV lamp (if any) not working
Communication error with a remote control (CRC2, ZUI if failure after 3 consecutive
ALARM 8
communication attempts
Communication error with Master unit. If "temperature check" message is not received
ALARM 9
within more than 10 minutes
Communication error with Leader unit. If "temperature check" message is not received
ALARM 10
within more than 10 minutes
CO2Tvoc reading error. If no Co2Tvoc reading is received by the Leader unit within more
ALARM 11
than 10 minutes
Communication error with Master Zonig. If no Zoning value is received by the Master
ALARM 12
within more than 10 minutes
ALARM 13
Maintenance required
ALARM 14 EEprom error. If checksum is wrong
Electric heaters (if any) error
ted value for 10 consecutive minutes
ALARM 15
Or
ted value for 5 consecutive seconds
ALARM 16 Coniguration error. An inaccurate coniguration value of the card is detected
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
ALARM 17
this alarm is displayed. When any bit in Alarm Status is set, the alarm displayed will be
"Summary Alarm – Alarm Status XX"
ALARM XX The card is not working correctly
Check through the special window (shown at the side) that the
STATUS RED led is always of.
The Status red led can lash in two diferent ways:
Normal operation: regular lashing, one second on, one
second of.
Abnormal operation: the led emits a certain number of pulses
depending on the irregularity detected on the unit. The led
remains on for 60 sec. and of for other 60 sec. with 5 seconds
between the two lashings.
The detectable failures are the following:
reading
th
Pulse number
Always of
Always on
On for 800ms of for 200ms (1 HZ)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
-
15
-
16
17
42N_S 42N_E
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