LG LV240HV4 - NJ;NK Chassis DIP Switch Settings

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Electrical System Installation
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ELECTRICAL SYSTEM INSTALLATION
NJ/NK Chassis DIP Switch Settings
DIP Switch Function Off On Description
SW1
COMMUNICATION Off (default) – –
SW2
CYCLE Off (default) – –
SW3
GROUP CONTROL Master Slave
Group control setting using 7-Day Programmable Controller; selects Master /
Slave on each indoor unit
SW4
DRY CONTACT
MODE
Variable Auto
Sets operation mode for optional Dry Contact accessory
1. Variable: Auto or Manual Mode can be set through 7-Day Programmable
Controller or Wireless Remote Controller (factory default setting is Auto if
there is no setting)
2. Auto: For Dry Contact, it is always Auto mode
SW5
CONTINUOUS FAN Off On
Selects continuous fan for ducted indoor units.
1. On: Indoor unit fan will always operate at a set fan speed, except when
the system is off, or the outdoor unit is in defrost mode (when the outdoor
unit
is in defrost mode, the fan will operate at super low fan speed)
2. Off: Indoor unit fan speed can be changed by on / off
SW6
HEATER INTERLOCK Off On
Selects heater interlock function for Vertical Air Handling Units.
1. On: Automatic (heater will automatically operate during heating mode).
2. Off: Manual (heater needs to be manually turned on during heating mode).
SW7
Off
SW8
Off
To operate the indoor unit without an internal electric heater, DIP switches 1, 2, 6, and 8 must be set to Off.
To operate the indoor unit with an internal electric heater, DIP switch 6 must be set to On.
• SW6 ON: Automatic heater operation; Heater operates automatically.
• SW6 OFF: Manual heater operation; Owner’s involvement is required for on/off operation.
If you operate the indoor unit with internal electric heater with DIP switch 5, note the following:
• SW5 ON: Fan operates continuously. During defrosting or oil return operation, uninterrupted heating can be attained, as a result of continuous
heater and fan operation.
• SW5 OFF: Fan discontinues operation. There would be reduction in heating capacity while defrosting or oil return operation.
Table 20: NJ/NK Chassis DIP Switch Settings.