CHILLER 607NT-608NT User manual N - REV20160118_EN.docx
Page 15 of 18
4.3
Alarm table
From page “
Saved Alarm show
” all the following alarms can be displayed by pressing “OK”
and “RIGHT/LEFT” step by step:
ALARM DESCRIPTION
TROUBLESHOOTING
AL 1
TXX (description) probe disconnected or broken
Sensor to be replaced - call authorized service
AL 2
Refrigerant low pressure
Check if seawater flow and fresh water flow are correct
Check for refrigerant leakage
AL 3
Refrigerant high pressure
Check if seawater flow and fresh water flow are correct
AL 4
Compressor Driver high temperature
Check cooling fan and heat sink cleanliness
AL 5
Compressor shell high temperature
Check if seawater flow and fresh water flow are correct
Check for refrigerant leakage
AL 6
SSPM driver alarm
Call authorized service
AL 7
Compressor low temperature
Check if seawater flow and fresh water flow are correct
AL 8
High compressor discharge temperature
Check if seawater flow and fresh water flow are correct
Check for refrigerant leakage
AL 17
Fresh water flow switch
Check if fresh water flow is correct/air bubbles presence
AL 24
Seawater water exchanger low temperature
Check if sea water flow is correct
AL 25
Fresh exchanger low temperature
Check if fresh water flow is correct
5.0
WORKING LIMITS
The unit operates correctly within the following ranges:
Summer cooling mode:
15°C < sea water temperature < 40°C
Winter heating mode:
5°C < sea water temperature < 20°C
Should working conditions be out of these ranges, in your particular application, please contact
Innova before installation in order to find a suitable solution.
Localized situations:
in some regions, it is common to experience a tremendous presence of
jellyfish or seaweed concentrated in back bay marinas for some periods of time. This can clog
strainers, water pumps and heat exchangers in a little while, causing shut-down faults and
sometimes equipment damage. In such particular conditions, please seek the advice of a
local Innova service representative. Any possible modification to the overall system (chiller,
pumps, strainers, etc) that could overtake the problem must be approved by Innova,
otherwise warranty coverage will decline.
The pump is not self-priming:
any damage incurred due to a pump running dry is not covered
under warranty. Air conditioning system must be switched off, as well as pumps, whenever
there is a risk of pump unpriming, due to particular seawater conditions related to the boat
type and its speed. The compressor could be damaged if the seawater flow through the heat
exchanger is considerably reduced.
This air conditioning system is designed to work under normal operation conditions.
Where
failure or malfunctions could lead to an abnormal operating condition that could cause injury
or damage to any equipment or other property, additional precautions must be designed into
the control system. Other devices (limit or safety control) or systems intended to warn of, or
protect against failure or malfunction, must be incorporated into and maintained as part of
the system.