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Step 6 — Position and Connect Controller —
Controllers are ordered separately.
Wired controllers should be installed in a position that
maintains good temperature control:
• Position the thermostat approximately 48 in. above floor
level.
• Do not position thermostat where it can be directly
affected by the unit’s discharge airstream.
• Avoid external walls and drafts from window and doors.
• Avoid positioning near shelves and curtains as these
restrict air movement.
• Avoid heat sources such as direct sunlight, heaters, dim-
mer switches, and other electrical devices.
WIRELESS REMOTE CONTROLLER — Before installa-
tion, operate the remote controller to determine the appropriate
location for reception range. Avoid direct sunlight exposure or
heating sources. Use proper mounting screws and controller
bracket to mount the controller on the wall (see Fig. 9). For set-
up instructions, refer to the controller installation manual.
WIRED REMOTE CONTROLLER (PROGRAMMA-
BLE) — To connect a wired remote controller (thermostat) to
the indoor unit, use 4-core shielded cable and 4-pin connector
from electrical box of indoor unit (see Fig. 10). For setup in-
structions, refer to the controller installation manual.
WIRED REMOTE CONTROLLER (NON-PROGRAM-
MABLE) — To connect wired remote controller (thermostat)
to the indoor unit, use 5-core shielded cable and 5-pin connec-
tor from unit display panel (see Fig. 11). For setup instructions,
refer to the controller installation manual.
CENTRAL CONTROLLER — The central controller is
connected to the indoor unit through outdoor unit with 3-core
shielded cable (see Fig. 12). For setup instructions, refer to the
controller installation manual.
REMOTE
CONTROLLER
MOUNTING
SCREWS
REMOTE CONTROLLER
HOLDER
A40-1712
Fig. 9 — Wireless Remote Controller
Fig. 10 — Wired Remote Controller
(Programmable) Wiring
SHIELDED
4-CORE
CABLE
BACK OF
CONTROLLER
INDOOR UNIT
ELECTRICAL BOX
CONTROL
BOARD
a40-1779
INDOOR UNIT
DISPLAY PANEL
5-CORE CABLE
5-CORE SHIELDED CABLE
INDOOR UNIT
ELECTRIC CONTROL BOX
INDOOR UNIT
ELECTRIC CONTROL
PANEL
WIRED CONTROLLER
BACK
A40-1714
5-CORE CABLE
Fig. 11 — Wired Remote Controller
(Non-Programmable) Wiring
X Y E F1 F2 E
FORCED ON
EMG. STOP
R
C
TO INDOOR UNIT
X,Y,E
DAISY CHAIN
NOT USED
FORCED
ON
SWITCH
EMERGENCY
STOP
SWITCH
24 VAC
a40-1774
Fig. 12 — Central Controller Wiring