7
Step 6 — Position and Connect Controller —
Wired controllers should be installed in a position that main-
tains 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 windows 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.
REMOTE WIRED CONTROLLER (PROGRAMMA-
BLE) — To connect a remote programmable wired controller
(thermostat) to the indoor unit, use 4-core shielded cable and 4-
pin connector from electrical box of indoor unit (see Fig. 6).
For setup instructions, refer to the controller installation
manual.
REMOTE WIRED CONTROLLER (NON-PROGRAM-
MABLE) — To connect remote non-programmable wired
controller (thermostat) to the indoor unit, use 5-core shielded
cable and 5-pin connector from unit display panel (see Fig. 7).
For setup instructions, refer to the controller installation
manual.
ALARM
ON/OF
F
P
Q (E)
X
Y (E)
L2
REMOTE ON/OFF
a40-1752
Fig. 5 — 40WAV018-048 Typical Wiring Diagram
LEGEND
CS
— Water Level Switch
EEV
— Electronic Expansion Valve
FM
— Indoor Fan
PUMP
— Pump Motor
T1
— Inlet Air Temperature
T2
— Coil Temperature
T2B
— Evap. Outlet Temperature in Cooling Mode
TR
— Transformer
XP1-10 — Plug
XS1-10 — Jack
XT1-2
— Terminal Block
----------
Optional Component or Field Wiring
WIRED REMOTE
CONTROLLER
4-PIN CONNECTOR
FROM ELECTRICAL BOX
INDOOR
UNIT
a40-1726
Fig. 6 — Remote Wired Controller
(Programmable) Wiring
