OWNER’S MANUAL -
RAH-123M, 183M
12
Complete Installation
NOTICE:
Handle air conditioner gently.
1. Insert air conditioner into cabinet.
3. Install ground screws on both sides of cabinet .
4. Insert front tabs of front panel into top of cabinet and swing
front into place.
5. Attach bottom front of panel with front panel screws. Replace
control knobs (on some models).
NOTICE:
For through-the-wall installations, if needed, install
molding around room side of cabinet.
6. Plug into a grounded 3 prong outlet.
7. Press RESET on the power supply cord plug.
WARNING
Excessive Weight Hazard
Use two or more people to move and install
air conditioner.
Failure to do so can result in back or other injury.
WARNING
Electrical Shock Hazard
Install two ground screws on both sides of cabinet.
Failure to do so can result in death or electrical shock.
Electrical Shock Hazard
Plug into a grounded 3 prong outlet.
Do not remove ground prong.
Do not use an adapter.
Do not use an extension cord.
Failure to follow these instructions can result in death,
fire, or electrical shock.
WARNING
13
13
General Operating Instructions
While operation of all units is similar, controls vary slightly
from model to model. Operating Controls section shows
control panel of unit purchased and gives detailed information
about operation of controls.
Airflow Around Unit
Select the highest fan speed and set temperature control to
its coldest position. When the desired temperature is
reached, slowly move the temperature control toward a
warmer setting until the compressor shuts off. The thermo-
stat will then cycle the compressor on and off to maintain this
selected temperature. Adjust the fan speed for desired air
circulation.
OUTDOOR
LOUVERS
INDOOR
GRILLE
BAFFLES
Se
t
+
-
TIMER
ME
D
HI
GH
LO
W
AU
TO
PO
W
ER
FAN
SPEED
MO
DE
CO
OL
EN
ERG
Y S
AV
ER
FA
N
ON
LY
HE
AT
1-2
4 HR
TEMP/T
IME
R
Changing Airflow Direction Baffles
Airflow on unit may be diverted left or right from center by
baffles. Upward and downward air discharge is provided by
tilting louvers. Adjust baffles and tilt louvers for desired
airflow pattern.
Airflow Around Unit
Check the indoor grille and outdoor louvers for obstructions
to airflow. Do not block the airflow to and from the unit. If air
is obstructed and/or deflected back into the unit, the air
conditioner’s compressor may cycle on and off rapidly. This
could damage your unit.
Drain Cup Installation and Use (on some models)
Your air conditioner uses a system where the water removed
from the indoor air (condensate) is channeled to the outdoor
side of the unit. The outdoor fan blade has a “slinger” ring
attached to it that dips into the water and slings the water
onto the outdoor coil surface. This is the sound of water you
hear during normal operation. The water quickly evaporates
on this warm surface and improves the efficiency of your air
conditioner. In normal conditions the unit can evaporate the
water as fast as it is removed from the indoor air.
However, in very humid conditions excess amounts of water
may drip off the unit chassis. If this proves to be a problem,
install the condensate drain cup included with the unit to
route excess water where it would not be a problem (see
illustration).
To install, remove the unit chassis from the outer case. Insert
the condensate drain cup through the recessed ½” hole on
the back center of the outer case. Once inserted, place a ½”
diameter hose or tube on the drain cup bottom spout. The
hose allows you to route where you want the excess water to
go. Reinsert the unit chassis into the outer case. The unit
basepan overflow hole will be positioned directly above the
drain cup and will catch any water that might run out.
1/2" Diameter
Hose
Condensate
Drain Cup
Outer Case
Switchover Thermostat Control
Emergency heat switch overrides heat pump (compressor)
and starts auxiliary electrical heater. When switch is ON,
heat pump is locked out.
•
Use emergency switch only when heat pump fails to
provide adequate heat. Cause of heat pump malfunc-
tion should be determined by authorized servicer. Cost
of operating unit will increase when emergency heat
switch is engaged.
Only for Qualified Service Personnel
To access and engage emergency switch:
•
Unplug unit.
1. Remove front grille, air filter, and plastic front, as described
in Installation Instructions.
2. Slide chassis out of case about two inches.
3. Locate access hole for emergency switch above label on
right front of control box.
4. Remove control panel for access.
5. Remove outdoor thermostat from control box and locate
"flat head" adjustment screw on back of thermostat.
6. To start emergency heat, insert flathead screwdriver into
slot and turn counterclockwise until switch-stop is reached.
7. Return chassis to case.
8. Re-install lthermostat and mount control panel door.
9. Replace plastic front, air filter, and front
grille.
8. Re-install thermostat and mount control panel door.
