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Programmable Function
Factory Memory Reset
Compressor Time Delay
Fahrenheit/Celsius
Compressor Differential
Fan Response Differential
Low Fan Speed
High Fan Speed
Fan Mode (Cont. or Int.)
AC Line Voltage Calibration
Temperature Calibration
HU Precirculation
HU Dehumidification
HU Time Period
EPROM Version
EPROM Revision
Fan Response Differential
(Factory Default: 4 = 0.5°)
When the fan is in the automatic mode, its speed is gov-
erned by how far the room temperature differs from the
setpoint. The fan runs faster when the difference is great. As
the room cools or warms, the temperature approaches
setpoint, and the fan slows down automatically. The amount
of temperature rise in the room above setpoint needed to
cause the fan to increase in speed one step is called "fan
speed differential". It can be adjusted from 1/4° to 4°, in 1/8°
increments.
The fan speed range is divided by the SMX microprocessor
in five equal increments. If the fan response differential is set
at 1/2°, the fan speed will change 20% for each 1/2° of
temperature deviation from setpoint. Lowering the fan speed
differential will cause the fan to increase speed quickly as
temperature changes. Raising the fan speed differential will
result in slower fan speed changes for a given temperature
change. The factory setting of 1/2° Fahrenheit is good for
most applications, but you may wish to try a slightly higher
setting in your salon and a lower setting in your sleeper
compartment.
To adjust fan response differential:
• Enter the programming mode: Press OFF, Press SET
• Press COOL and SLOW. The differential will be displayed
in increments of 1/8°.
• Use the UP or DOWN key to raise or lower this value.
• Press OFF to exit the programming mode.
L-2347K Operation
Keystroke Combination
OFF & SET & FAN, then SET
DOWN & SET & UP
DOWN & TEMP & UP
SLOW & FAN
COOL & SLOW
(SLOW & FAN & FAST Before 8/98)
DOWN & SET
SET & SLOW
DOWN & FAN & UP
DOWN & UP
SET & UP
TEMP & DOWN
TEMP & SET
TEMP & UP
COOL & DOWN
COOL & DOWN, then UP
13
Factory Setting
See table below before reset
0
F
12
4
32
60
C
-
10 Min.
30 Min.
12 Hrs.
Low Fan Speed Adjustment
(Factory Default: 32)
You can adjust the lowest fan speed to suit individual
preferences. For instance, you may wish to decrease the low
fan speed setting in your sleeper compartment to minimize
fan noise.
To adjust low fan speed:
• Enter the programming mode: Press OFF, Press SET
• Press DOWN and SET simultaneously. The current low
speed reference number will be displayed (factory set
at 32).
• Press UP or DOWN to raise or lower speed reference
number.
• Press OFF to exit the programming mode.
Hint
For most efficient operation of your system, you should
normally keep the low fan speed at the highest possible
setting consistent with a comfortable noise level. Running the
fan speed too slow can damage the compressor.
High Fan Speed Adjustment
(Factory Default: 60)
A blower will often reach its highest speed at a voltage lower
than full line voltage. For example, at a line voltage of 120V,
the blower might reach its fastest speed at 110V. At higher
voltages, the bower speed will not increase significantly.
The SMX High Fan Speed Adjustment allows you to set the
maximum high-speed voltage to the threshold of the blower
high-speed response. Because SMX breaks up the fan
Range
0 to 70 sec.
F or C
4 to 24
2 to 8
30 to 56
41 to 90
C or I
-
± 1%
± 1%
10 Min.
See "Humidity
Control Program"
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