IM-KSAIC03-02 Specifications subject to change without notice. 3
INSTALLATION
Installation Location
The 24V INTERFACE KIT is rated for outdoor and indoor mounting
(depending on the application). It is recommended to install as close
as possible to the indoor unit and thermostat.
IMPORTANT: Follow the recommended clearances 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
2. Mount the 24V INTERFACE KIT horizontally (see Fig. 7), by
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 shown in the
System Configuration Scenarios section.
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:
• Thermostat should be configured for use with a conventional
system.
• The wireless remote controller, wired controller and Wi-Fi
cannot be used with this 24V interface Kit at the same time.
Only the Swing and LED function may be accessed with the
wireless remote.
Table 4 — Connection Wiring Specification
SYSTEM CONFIGURATION SCENARIOS
Follow the configuration scenarios for the right connections
depending on the system:
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
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 outdoors installation verify, during the mounting process, that
this arrow will point 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
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