LG Multi V PRHR033 Installation Manual page 49

Function setting
Setting
oFF
op1
op2
op3
op4
op5
op6
op7
op8
op9
CAUTION
!
• Ask an authorized technician to setting a function.
• If use a function, first install a Central controller.
Central Control Connection at Indoor Unit side (Fn 19)
Mode setting method
Master unit PCB DIP switch on : No.5
Select the mode using '▶', '◀' Button : "Func" Push
the '●' button
Select the Function using '▶', '◀' Button : "Fn16"
Push the '●' button
Select the Option using '▶', '◀' Button : "Fn19" Push
the '●' button
Select the Option using '▶', '◀' Button : "on","oFF"
Push the '●' button
Central Control Connection at Indoor
Unit side Mode is set
Compressor Input Current Limit Mode (Fn 20)
System Input Current Control
Mode setting method
Master unit PCB DIP switch on : No.5
Select the mode using '▶', '◀' Button : "Func" Push
the '●' button
Select the Function using '▶', '◀' Button : "Fn20"
Push the '●' button
Select the Option using '▶', '◀' Button :
"oFF","op1"~"op10" Push the '●' button
Compressor Input Current Limit mode is set
Compressor Input Current Limit
Frequency (Hz)
-
143 Hz
135 Hz
128 Hz
120 Hz
113 Hz
105 Hz
98 Hz
90 Hz
83 Hz
Geothermal mode setting (Fn 40)
If you want to use the product with heat source water of the low
temperature such as ground heat, it is the function that enables the
use of ground heat mode.
How to set the mode
Use '▶' and '◀' button to select between "ON" and
Mode setting
- ON: Set to operate in geothermal mode
- OFF: Set to operate in general mode
Ethylene glycol (%)
Propylene glycol (%)
Mode
oFF
op1
op2
op3
op4
op5
op6
op7
op8
op9
op10
CAUTION
!
• Ask an authorized technician to setting a function.
• If do not use a function, set an off-mode.
• If use a function, capacity may go down.
Turn on DIP switch No.5 of the master unit PCB
Use '▶' and '◀' button to mark "Func" in the 7
segment, and press '●' button.
Use '▶' and '◀' button to mark "Fn40" in the 7
segment, and press '●' button.
"OFF" in the 7 segment, and press '●' button.
Decide the Geothermal mode according to
the setting mode.
Minimum temperature for anti freezing [°C(°F)]
Anti freeze type
0 -5 (23) -10 (14) -15 (5) -20 (-4) -25 (-13)
0 12 (54) 20 (68) 30 (86)
0 17 (63) 25 (77) 33 (91)
Methanol (%) 0 6 (43) 12 (54) 16 (61) 24 (75) 30 (86)
CAUTION
!
• Request the function settings to the installation specialist during
the outdoor unit installation.
• When the function is not used, set it to OFF.
• Before changing the mode, make sure to check if the antifreeze is
added to the heat source water with appropriate ratio.
(If it is set to geothermal mode with inappropriate addition of
antifreeze or without antifreeze, there is a risk of product damage,
and we will not be responsible for such damage of the product.)
• When you add antifreeze, there may be increase of pressure
difference in the heat source water system and product
performance degradation.
• If it is in geothermal mode, add antifreeze according to the
temperature condition of at least -10 °C (14 °F).
(If the added amount is of -10 °C (14 °F) or more, it may cause
freeze and burst of the heat source water.)
49
Compressor Input Current Limit
100 %
95 %
90 %
85 %
80 %
75 %
70 %
65 %
60 %
55 %
50 %
- -
- -