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Due to our policy of continuous product innovation, some specications may change without notication.
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PRODUCT DATA | 37
Product Data
Table 14: NJ/NK Frame DIP Switch Settings.
Dip Switch Settings for Indoor Unit PCB
Dip Switch Settings
To operate the indoor unit without Internal Electric Heater, Dip switch 1, 2, 6, 8 must be set OFF.
To operate the indoor unit with Internal Electric heater, Dip switch 6 must be set 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 continu-
ous heater and fan operation.
• SW5 OFF: Fan discontinuous operation. There would be reduction in heating capacity while defrosting or oil return operation.
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
ELECTRICAL WIRING
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