Carrier KSAIC0301230, Installation Instructions Manual

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Specifications subject to change without notice. IM-KSAIC03-03
SCENARIO 2: SINGLE ZONE OUTDOOR
UNITS (38MBR) WITH APPROVED
DUCTLESS INDOOR UNITS
• Cassette (sizes 36K-48K)
• Ducted (sizes 36K-58K) (*refer to
NOTES in the adjacent column)
• Console (sizes 36K-58K)
Installation Steps:
1. Run the interconnecting piping from the indoor unit to the outdoor
unit using the correct indoor piping size.
2. Run the interconnecting wiring from the outdoor unit to the 24V
interface using terminal connections L1, L2, and G. Connect the
wiring for the S1 and S2 outdoor interface to CN8.
3. Run the interconnecting wiring from the 24V interface to the indoor
unit using terminal connections L1, L2, and G. Connect the wiring
for the S1 and S2 outdoor interface to CN9.
4. Run the thermostat wiring from the thermostat to the 24V interface
using connections R and C on CN15 and Y, W, G on CN19.
5. Configure the dip switches on the 24V interface accordingly.
6. Configure the thermostat to operate in single stage cooling and heating
scenarios ( DO NOT configure the thermostat as a Heat Pump ).
NOTES:
Follow the indoor and outdoor unit's general installation instructions.
*For Ducted units, in order to initially setup the static pressure, the
24V interface must be bridged. Temporarily connect the
communication wires, S1 and S2, from the indoor unit to the outdoor
unit until the static pressure settings are complete (see the Ducted
unit installation manual). When the static pressure is adjusted,
connect S1 and S2 to CN8 and CN9 (see Fig. 21).
On selected indoor units, the Up-Down Swing Louver functions as a
control to turn off the indoor unit display (LED) and is available on
the unit's wireless remote controller. The Wi-Fi accessories KSAIF
and wired remote controllers KSACN are not functional when using
the 24V interface.
Fig. 10 — Wiring Diagram
Refer to the Compatibility Charts on hvacpartners.com for the proper
matches and serial number compatibility. Units built prior to the generation
of this serial number would require a Control Board Replacement on the
Indoor unit.
CAUTION
The conventional thermostat must be configured for use with a single stage
air conditioner (Y output
ONLY ) and a single stage heating (W) system.
CAUTION
Do not
install T1
indoor sensor
Power supply from outdoor unit disconnect
Two wires are line voltage and the other is a ground wire.
NOTE: Dashed Lines indicate
OPTIONAL COMPONENTS
GROUND
BUS BAR
G
G
G
G