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NOTICE
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 unit, Hydro Kit is generally operated in whole winter season without
any system stopping.
- If system found some problem, which is not critical to system operating for yielding heating
energy, the system can temporarily continue in emergency mode operation with end user's
decision.
• Classified Trouble
- Trouble is classified two levels according to the seriousness of the problem : Slight Trouble and
Heavy trouble
- Slight Trouble : Sensor trouble.
- Heavy trouble : Compressor cycle trouble.
- 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 the system is faced with trouble, it stops and waits for userʼs 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.
High temperature cycle
Low temperature cycle
Target
DIP Switch
Leaving Water
(No.4)
Temperature
OFF
50°C(122°F)
ON
30°C(86°F)
System Set-Up
Target
Target Domestic
Room Air
Hot Water (DHW)
Temperature
Temperature
24°C(75°F)
50°C(122°F)
19°C(66°F)
50°C(122°F)
Hydro Kit Installation Manual 41
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