LG V-net PDRYCB300 Montageanleitung Seite 20

Setting and using method
n For heat pump thermostat with B terminal signal input
CHANGE
OVER_SW
Thermostat Fan & System Switch
FAN MODE
[Auto / On] [Cool / Heat / Off]
- -
OFF
Cool
Auto
Heat
OFF
Cool
ON
Heat
Notes
• Thermostats that close contacts "O" or "B" during Cool or Heat call only have not been verified. "O"
and/or "B" contact closure must be maintained during respective cycle / mode selection.
• IDU Fan logic, depending on model selected, may delay IDU fan operation momentarily during a cold
start heat call. This function allows IDU coil to warm up prior to operating fan in some IDU models.
• Thermostats that use resistive anticipation are not supported at this time.
• Verify documentation of desired thermostat so that the logic is same as shown in the table above.
20 Dry contact for thermostat
H
24 V~
N
CN_Ther/Oper
CHANGEOVER_SW
RESET_SW
Operation
- 0
- 1
RT > SP 1
RT < SP 1
RT < SP 1
RT > SP 1
- 1
RT > SP 1
RT < SP 1
RT < SP 1
RT > SP 1
Thermostat
LG does not supply this section
(Field supply)
C R Y G B
CN_MODE
DISPLAY_LED
TEMP_SW
CN_OUT
Input
Thermal FAN
[Y] [G]
- -
0 0
1 0
0 0
1 0
0 0
0 1
1 1
0 1
1 1
0 1
H H H
CN_WIND
SETTING_SW
IDU Response
HEAT
[Mode / Thermal / Fan]
[B]
- Disable Operation
0 Enable
0 Cool / On / On
0 Enable
1 Heat/ On/On
1 Enable
0 Fan/ Off/ On
0 Cool/ On/ On
0 Fan/ Off/ On
1 Heat/ On/ On
1 Fan/ Off/ On