KIRLOSKAR KAC - Troubleshooting

KIRLOSKAR CHILLERS PRIVATE LIMITED
A Kirloskar Group Company IOM-KAC-ENG - Page 53
This screen shows the percentage of
expansion valve open. And it also
indicates the amount of superheat in
Kelvin.
This screen is displayed when we press
key & there is no any active alarm in
the system.
After entering the Supervisory password we can able to access user level parameters also. Only
after entering the supervisor level password we can change the tripping parameters of the
pressures, tripping parameters of the temperatures, all alarm delays, anti-recycle timers etc. The
authorization code is a special four-character code that enables access in to the CAREL
controller system. The code must be numeric with values between 1 and 9 if it is to be entered
from the Keypad/Display. Each system can have three different authorization levels & for each
level there are different passwords. This provides the capability of issuing different codes to
different people if desired. The authorization code cannot display. The authorization codes must
be protected and remain confidential, if they are compromised unauthorized personnel can gain
access to the system.
6.6. Troubleshooting:
Problem
Check points
The unit does not start (power
LED off)
1. The mains power supply;
2. 24 Vac/Vdc is available downstream of the power
transformer;
3. The 24 Vac/Vdc power connecter is plugged in correctly;