Taylor Made Environmental SMX Series Operation Manual - page 12
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English
12
To adjust fan response differential:
SMX II (Before 8-1-98)
• Press SLOW, FAN and FAST simultaneously.
All SMX Models
(After 8-1-98)
• Press COOL and SLOW. The differential will be displayed in
increments of 1/8 degrees Fahrenheit (factory set at 4, for 1/2
degree).
• Use the UP or DOWN key to raise or lower this value.
• Press OFF to exit the programming mode.
Auxiliary Heat
(Factory set: disabled)
Normally, the aux heat function is disabled, so that the
compressor runs in reverse cycle heating mode without aux
heat. When aux heat is enabled (see below), press the HEAT key
once to run Reverse-Cycle heating only. Press the HEAT key
twice quickly to run aux heat.
To enable or disable aux heat:
• Enter the programming mode:
Press OFF.
Press SET.
• Press HEAT and SET simultaneously.
• Use the UP or DOWN key to toggle the aux heat on or off. When
aux heat is enabled the letters AH will be displayed . When aux
heat is disabled, the Null sign (--) will appear.
• Press OFF to exit the programming mode.
AC Line Voltage Calibration
(Factory set: +/- 1%)
The SMX control assembly has a built-in voltmeter which
senses AC line voltage. The microprocessor automatically
responds to sustained low-voltage conditions by shutting down
the air conditioning system to prevent compressor damage.
At installation, the SMX voltmeter is calibrated to line voltage
within +/- 1%.
To check or recalibrate AC line voltage:
• Enter the programming mode.
Press OFF.
Press SET.
• Press DOWN and UP simultaneously. Line voltage will be
displayed in two digits. For 115V systems, 70-99 appears as
70-99, and 100-160 appears as 00-60. For 230V systems, the
display shows one-half the line voltage.
• To check accuracy or to calibrate, turn off all on-board AC
loads and measure the line voltage with an accurate voltmeter.
• If the SMX displayed voltage is not correct, press the UP or
DOWN key to enter the correct value.
• Press OFF to exit the programming mode.
Temperature Calibration
(Factory set: +/- 1 deg. Fahrenheit)
The SMX II has one thermistor for cabin temperature. The SMX
Online Net has both inside and outside thermistors. These
sensors are calibrated at installation.
To check or recalibrate the thermistors:
• Use the TEMP key to select inside temperature
(SMX Online Net only).
• Enter the programming mode:
Press OFF.
Press SET.
• Press SET and UP simultaneously. The temperature will be
displayed in degrees Fahrenheit or Celsius, depending on
which you have selected.
• Place an accurate thermometer beside the thermistor you are
using and compare the temperatures.
• Use the UP or DOWN key to adjust the displayed temperature
to the correct value.
• Press OFF to exit the programming mode.
Two-Speed Or Variable Blower Control
(Factory set: Variable)
SMX Online Net Only
The SMX Online Net control can be programmed for use with
variable-speed or two-speed blowers. The SMX II can only be
used with variable-speed blowers.
To program for variable or two-speed blower
control:
• Enter the programming mode.
Press OFF.
Press SET.
• Press SET and FAST simultaneously.
• Use the UP or DOWN key to toggle the display for F1 for
variable-speed or F2 for 2-speed.
• Press OFF to exit the programming mode.
Two-Speed blower, high-to-low speed coast
adjustment.
• Enter the programming mode.
Press OFF.
Press SET.
• Press SET and FAST simultaneously.
• Use the UP or DOWN key to increase the number for
longer coast time or decrease the number for shorter coast
time.
• Press OFF to exit the programming mode.