System Set-Up
Installation Manual
75
ENGLISH
Emergency Operation
• Definition of terms
-
Trouble :
a problem which can stop system operation, and can be resumed temporally under
limited operation without certificated professional's assist.
-
Error :
problem which can stop system operation, and can be resumed ONLY after certificated
professional's check.
-
Emergency mode :
temporary heating operation while system met Trouble.
• Objective of introducing 'Trouble'
- Not like airconditioning product, Air-to-Water heat pump is generally operation in whole winter
season without any system stopping.
- If system found some problem, which is not critical to system operating for yielding heating en-
ergy, the system can temporarily continue in emergency mode operation with end user's deci-
sion.
• Classified Trouble
- Trouble is classified two levels according to the seriousness of the problem : Slight Trouble and
Heavy trouble
-
Slight Trouble :
a problem is found inside the indoor unit. In most case, this trouble is con-
cerned with sensor problems. The outdoor unit is operating under emergency mode operation
condition which is configured by DIP switch No. 4 of the indoor unit PCB.
-
Heavy trouble :
a problem is found inside the outdoor unit. As the outdoor unit has problem, the
emergency mode operation is performed by electric heater located in the indoor unit.
-
Option Trouble :
a problem is found for option operation such as water tank heating. In this
trouble, the troubled option is assumed as if it is not installed at the system.
• Emergency operation level
- When system met trouble, it stops operation and wait for user’s decision : Calling service center
or starting emergency operation.
- To start emergency operation, user simply push ON / OFF button once more.
- Two different levels are prepared for emergency operation : High temperature cycle and low
temperature cycle.
- In emergency operation mode, user can not adjust target temperature.
NOTICE
High temperature cycle OFF 50°C 24°C 70°C
Low temperature cycle ON 30°C 19°C 50°C
DIP
Switch
Target
Leaving Water
Temperature
Target
Room Air
Temperature
Target
Sanitary Water
Temperature
Содержание Therma V AHUW096A2
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