4
Specifications subject to change without notice. IM-KSAIC03-03
INSTALLATION
Installation Location
The 24V INTERFACE KIT
is rated for outdoor and indoor mounting
(depending on the application). It is recommended that the kit
installation be as close as possible to the indoor unit and the
thermostat.
IMPORTANT: Follow the recommended clearances
(see“CLEARANCES” on page 3) and install in an area
above the ground away from locations where water could
enter.
Fig. 4 — Installation Floor Mount View (right way)
Fig. 5 — Installation Floor Mount View (wrong way)
1. Remove the cover of the
24V INTERFACE KIT.
Remove the six
screws of the
24V INTERFACE KIT
with a screwdriver or
similar tool. Rotate the lid along the hem to disassemble.
Fig. 6 — Remove the cover
NOTE: Minimum free space required around the kit is 7"
(180 mm) for service purposes
2. Mount the
24V INTERFACE KIT
fastening the back plate to the wall with 3 screws (M4x20) and
anchors.
Fig. 7 —24V Interface Kit
NOTE: Place the unit on a flat surface. Be careful not to
distort the back plate of the 24V INTERFACE KIT by over
tightening the screws.
3.
WIRING
- Based on the system used, wire the unit as described in
“SYSTEM CONFIGURATION SCENARIOS” on page 4).
4. Cover the
24V INTERFACE KIT
lid, and lock back in place
using the six screws previously removed.
Fig. 8 — Cover the screw
SYSTEM CONFIGURATION
NOTES:
• The thermostat should be configured for use with a as a single
stage Cooling and Heating (DO NOT configure the thermostat as a
Heat Pump).
• The wireless remote controller, wired controller KSACN and Wi-
Fi kits KSAIF cannot be used with this 24V interface Kit at the
same time. The Swing and LED function may be accessed with
the wireless remote controller.
Table 4 — Connection Wiring Specification
SYSTEM CONFIGURATION SCENARIOS
Based on the system, utilize the appropriate configuration scenario:
Scenario 1:
Single Zone Ductless System with 38MPRA, 38MA*R,
38MHR
Scenario 2:
Single Zone Ductless System with 38MBR
Scenario 3:
Multi-zone Ductless System with 38MGR
Scenario 4:
Single Zone Fan Coils FMA/FMC/FMU with 38MA*R
Scenario 5:
Single Zone Fan Coils FV4C with 38MA*R
Right
Wrong
DO NOT
install the 24V INTERFACE KIT near flammable liquids or
gases such as gasoline or hydrogen sulfide. Doing so creates a fire hazard.
CAUTION
The 24V Interface kit cover has a directional arrow on the cover. In case
of an outdoor installation be sure to verify, during the mounting process,
that this arrow points
UP
upon installation. Failure to mount the kit
correctly can cause water ingress into the box which may compromise the
electrical component integrity.
CAUTION
Connection
Wiring
Outdoor
L1, L2, S & G,
S1, S2
Indoor
L1, L2, S & G,
S1, S2
R,C
Y/W/G/G1/
G2/G3/Dry
Size
Refer to the
outdoor
connecting
wires size
Refer to the
indoor
connecting
wires size
18AWG
(minimum)
18AWG
(minimum)
Back plate
Screws (M4×20)
