IM-KSAIC03-02 Specifications subject to change without notice. 11
DIP SWITCHES CONFIGURATION
The 24V INTERFACE KIT must be configured to operate properly
with the system components with which it is installed. To successfully
configure the system, move the Dip Switches to match the
components and functions used.
NOTE: Properly identify the DIP switch number marked
on the board of the 24V interface as SW1 through SW4
before selecting the options. On each DIP switch block the
numbers 1 and 2 would be marked.
Fig. 19 —DIP Switch Definitions
DIP Switch 1-1
Used to turn ON or OFF the diagnostic code display LED on the
control board of the 24V Interface (see Fig. 20).
Table 8 — DIP Switch 1-1
Fig. 20 —LED
DIP Switch 1-2
Used for selection of the indoor unit type.
Table 9 — DIP Switch 1-2
NOTES*:
1. Need to remove the indoor unit throttle (piston/TXV/ orifice);
2. Indoor fan will stop during defrost and will start again 30
seconds after the defrost cycle is complete on the outdoor unit.
G1, G2 and G3 on the 24V interface will not provide any fan
output signal to the Indoor Fan during the defrost cycle plus 30
seconds.
NOTE: If this 24V interface is matched with Non-Ductless
indoor unit, the DIP switch must be set to OFF.
DIP Switch 2-1
Used for selection of the system: Cooling Only or Heat Pump.
Table 10 — DIP Switch 2-1
DIP Switch 2-2
Used for freeze protection of the indoor coil (only available on
Scenarios 1 through 3).
Table 11 — DIP Switch 2-2
NOTE: Applicable only to Ductless Style Indoor Heat
Pump units in Heating Mode.
DIP Switch 3-1
On Ductless Systems, Dry is used with thermostats with a Dry
Function output.
Table 12 — DIP Switch 3-1
DIP Switch 3-2
Used to increase the compressor frequency in case the set point has
not been reached after 1 hour or 3 hours of operation. The unit will
keep operating as Variable Speed on both cases.
Table 13 — DIP Switch 3-2
DIP Switch 4-1
Not required. Used on future applications. Select the indoor unit’s fan
only mode.
Table 14 — DIP Switch 4-1
DIP Switch 4-2
Not required. Used on future applications. Select the indoor unit’s fan
speed (when selecting DIP switch 4-1).
Table 15 — DIP Switch 4-2
NOTE: If the SW4-1 is ON, the SW4-2 takes effect, otherwise the
SW1-2 takes effect.
SW1-1 Result Note
ON Display on
OFF Display off Default
SW1-2 Result Note
ON
Sets - Both Ductless Indoor and Outdoor Units
(For Scenarios 1-3)
OFF
Outdoor only (Hybrid Solution) (For Scenario 4)
----- Compatible with other 24V indoor units Fan
Coil/Furnace/Cased Coil.
Default
(see
NOTES*
below)
SW2-1 Result Note
ON Cooling Only
OFF Heat Pump Default
SW2-2 Result Note
ON Fan does not stop
OFF Fan will stop if the indoor coil temperature is low Default
SW3-1 Result Note
ON Dry Mode
OFF Used on future applications Default
SW3-2 Result Note
ON 1h
OFF 3h Default
SW4-1 Result Note
ON The SW4-2 is available under fan only mode
OFF The SW1-2 is available Default
SW4-2 Result Note
ON Medium fan speed
OFF High fan speed Default
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