Blizzard Turbo Split System Manual
OPERATING THE SYSTEM WITH QT CONTROLS
L-3448 ENGLISH
19
To adjust low fan speed:
While in OFF mode, enter programming mode by pressing the MODE and minus (-) keys for three seconds. The display will
flash "PO" during the three seconds. After the three-second flash, a flashing 1 will appear on the display, which is function #1.
While in program mode, the OFF LED will flash, which indicates program mode. Scroll through the function numbers by
pressing the plus (+) or minus (-) key until #5 is displayed. Press the MODE key and the current value is displayed. The low fan
LED will flash. Factory default is 38. Range is 2 to 57. Use the plus (+) or minus (-) key to change value and then, press the fan
key once to save information and continue programming or press the fan key twice to save and exit program mode.
NOTE: 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.
Table 2: PROGRAMMABLE FUNCTION CHART
Programmable Function
Qt Display Indicators
Function #
Factory
Setting
Range
Fahrenheit/Celsius
Displays F
OFF mode flashes
2
F
°F or °C
Low Fan Speed
Displays 38
OFF mode flashes
Low fan speed LED
5
38
2 to 57
High Fan Speed
Displays 60
OFF mode flashes
All fan speed LED
6
85
41 to 99
Fan Mode
Displays C
OFF mode flashes
7
C
C or I
AC Line Voltage Calibration
Displays last two digits of line voltage
OFF mode flashes
8
—
±1%
Temperature Calibration
Displays inside temperature
OFF mode flashes
9
—
±1%
Software Version
Displays version #
OFF mode flashes
10
n/a
n/a
Software Revision
Displays revision #
OFF mode flashes
11
n/a
n/a
High Pressure Switch Test
Displays OA or FA
OFF mode flashes and COOL LED flashes
(dot in upper-left corner of display is lit if
compressor is on)
12
OA=Okay
FA=Fault
n/a
LED Test
Displays all LEDs
OFF mode flashes
13
Lights all
LEDs
n/a
LED Sleep Mode
Displays ON=LEDs
or SL=LEDs
Dims settings 10 seconds from last key
touched
14
ON
ON=Continuous
SL=Sleep mode
Power Saver Mode
Displays “—”
OFF mode flashes
15
“---” =
Normal mode
“---” =
Normal mode
P1=Power
saver mode
