Operating Idu Low Noise; In Cooling Idu Eev Max. Pulse - LG MULTI V 5 Manual Book

6.5 Operating IDU Low Noise

This function is used to reduce refrigerant noise when the indoor unit starts to run
for heat recovery system.
■ Setting the function
Function
Operating IDU Low Noise Id 8
■ Option Selection
Step seg1
1 -
2 1 (Cooling) / 2 (Heating)
Cooling
-
('1' in step 2)
3
Heating
-
('2' in step 2)
• Impossible to set all indoor unit at once ※Only possible to set each indoor unit
■ Detailed information
• This function is used with heat recovery.
·Ask an authorized technician to setting a function.
·Maintain setting EEV pulse when the indoor unit starts to run for about 3min.
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Step Option
seg1, seg2 : -
1
seg3, seg 4 : IDU No.
seg1 : 1, 2
2
seg2, seg3, seg4 : -
seg,1, seg 2 : -
3
seg 3,4 : EEV pulse
seg2 seg3, seg4
- 1 ~ 64
- -
0, 13 ~ 17
-
(13 0 ~ 170pls)
- 0, 1 (140pls)

6.6 In Cooling IDU EEV Max. Pulse

It is the function to prevent excessive opening by setting EEV maximum pulse of indoor unit in cooling.
■ Setting the function
Function
In Cooling IDU EEV Max. Pulse Id 9
■ Option Selection
seg1, seg2
1 ~ 64
• Maximum EEV pulse can be set in units of 10pls from 150 to 300pls. ('0': No setting)
• Set EACH IDU : Select "Idu" → "Id9" → EACH → Select Indoor Unit No. → Set Value
• Set All IDU : Select "Idu" → "Id9" → ALL → Set Value
■ Detailed information
• This function is used with heat pump and heat recovery.
• In cooling mode, the typical normal maximum pulse is 600. If superheat is too low,
you can restrict IDU max pulse to reduce noise in cooling caused by valve hunting.
• Adjust operating range to stop hunting and stop noise
EEV valve normal range 0 ~ 1350 pulse
EEV in cooling typically open < 600 pulse, never greater than 1000 pulse
EEV in heating typically 8 ~ 1350 pulse
Maximum open can be adjusted down to 300 pulse
· Ask an authorized technician to setting a function.
Option
seg1, seg2 : IDU No.
seg3, seg4 : Max. EEV * 10pls
seg3, seg4
150 ~300 * 10pls
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