LG THERMA V Installation Manual page 142

CONFIGURATION
142
NOTE
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 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 : a problem is found inside the unit. In most case, this trouble is concerned
with sensor problems. The outdoor unit is operating under emergency mode operation
condition which is configured by DIP switch No. 4 of the 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
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.
• When the AWHP has any trouble,
(1) If there is not a function to judge possibility of operation :
Once an error occurs mainly in indoor unit, AWHP stops. On the other hand, Remocon
allows the product to activate On/ Off operation. (On : emergency operation)
- Slight / Heavy trouble : Heating Operable only
- Critical trouble : Full stop
- Treatment priority : Critical>Heavy>Slight
(2) If there is a function to judge possibility of operation :
Depending on the status of slight / heavy / critical trouble, pop-up phrase is guided
separately on display.
- Slight trouble : Heating/Cooling Operable
- Heavy trouble : Heating Operable only
- Critical trouble : Service center request
AWHP operates when user pressed OK button on pop-up window.