RS4100004 Rev. 0
12
Operating Instructions
Rotary Control Fan Settings
Rotary fan control can be operated in two modes:
NORMAL MODE or ENERGY SAVER.
In
NORMAL MODE, fan runs continuously at selected
speed and compressor cycles on and off to maintain
room at desired temperature. When compressor is on,
room is cooled and dehumidified.
In
ENERGY SAVER, fan cycles on and off with
compressor. Fan motor comes on when compressor
cycles on, and continues running for about 45 seconds
after compressor cycles off. Periodically (approximately
every 5 minutes) fan turns on to sample room air
temperature. Fan turns off after approximately 45
seconds if room temperature is below set point of
temperature control. If room temperature is above set
point, fan continues to operate and compressor cycles
on to cool room.
In either mode, fan speed settings include:
HIGH—Fan operates at high speed for maximum air
circulation and quicker cool down during initial start up
of unit.
MED—Fan operates at medium speed. Select this
speed for a combination of reduced air circulation and
quieter operation.
LOW—Fan operates at slowest speed to provide
quietest operation.
FAN ONLY—Fan operates continuously at high speed
and compressor remains off. Use this setting to circulate
air without cooling and, with
VENT CONTROL in
EXHAUST position, to vent room of stale air, odors,
smoke, etc.
OFF—Turns air conditioner off.
NOTE: Unplug air conditioner if it is to be turned off for
an extended period of time.
Temperature Control
The
TEMPERATURE CONTROL is used to set and
adjust level of cooling. The higher control is set, the
cooler room or area being cooled becomes.
NOTE:
TEMPERATURE CONTROL setting does not
affect how quickly a room is cooled, it only
determines how cool a room becomes. Setting
control to its maximum setting will not cool a
room faster.
Control settings of 3 and below are
ECONOMY
SETTINGS. Setting control in this range can result in
energy savings by reducing amount of time compressor
operates (because room or area is not being cooled as
much as with higher settings).
On units with touch controls, turning temperature control
to
FAN ONLY position turns compressor off, but keeps
fan running. Use this setting to circulate air without
cooling and, with
VENT CONTROL in EXHAUST
position, to vent room of stale air, odors, smoke, etc.
Compressor Lockout Feature
To extend compressor life and prevent circuit overloads,
units with a rotary control have a compressor lockout
feature. Compressor lockout prevents compressor from
cycling on for 3 to 4 minutes after:
·
Compressor cycles off.
·
Unit is first turned on.
·
Temperature control is turned down (to a cooler
setting) immediately after compressor cycles off.
·
Fan control is switched from
NORMAL MODE to
ENERGY SAVER, or vice versa.
Low Voltage Protection
If supply voltage drops below specification, unit will
automatically shut down to prevent damage to any
components. When voltage returns to specified level,
unit automatically resumes operation.
NOTE: On units with rotary controls, a compressor
lockout occurs when unit resumes operation
after low voltage shut down.
