62-11863 3-10
FN0: Defrost Interval
The Defrost Interval is displayed with the description DEFR or FN0. The data for the interval is displayed with one dec-
imal place and then the capital letter H for hours (i.e., DEFR 12.0H). The defrost intervals are 1.5, 3, 6, or 12 hours.
FN1: Speed Control Selection
This feature is disabled on the Supra 950MT as it is a single-speed only machine.
FN2: Minimum Off-Time
The Off-Time selection for the AUTO START mode is displayed with the description OFF T or FN2. The off-times
are 10, 20, 30, 45 or 90 minutes. The data for the off-time is displayed with two digits and then the capital letter M
for minutes (i.e. OFF T 20M).
FN3: On-Time
The On-Time selection for the AUTO START mode is displayed with the description ON T or FN3. The on-times are
four or seven minutes. The data for the on-time is displayed with two digits and then the capital letter M for minutes
(i.e. ON T4 M).
FN4: Standard Units Select
Standard Unit Select controls how all parameters are displayed. The two choices are DEGREES F and DEGREES
C. This parameter also controls units that data is displayed in psig or bars (i.e, Degrees F or Degrees C). The code
display is FN4. The selections are F or C.
FN5: Maximum Off-Time
The setting for the Maximum Off-Time is within the parameters TEMP STRT (FN6 OFF) or TIME STRT (FN6 ON).
With the unit in TIME STRT, the control forces the engine to restart 30 minutes after shutoff.
FN7: Auto/Manual Start Operation
The selection for starting the unit is displayed AUTO OP (FN7 ON) for Auto Start operation or MAN OP (FN7 OFF)
for Manual Start operation. AUTO OP must be used to start the Supra 950MT; Manual Start is no longer in use.
FN8: Out-of-Range Tolerance
The Out-of-Range Temperature tolerance selection is displayed with the description T RANGE or code FN11. The
selection are A, B, and C.
A = 3.6°F (2°C), B = 5.4°F (3°C), and C = 7.2°F (4C°).
Table 3–1 Function Parameters
Code English Data
FN0 DEFR Defrost Interval
FN1 ON CITY SPD Feature disabled
FN1 OFF HIGH SPD Feature disabled
FN2 OFF T Minimum off-time
FN3 ON T On-time
FN4 DEGREES F or C Temperature Unit °C or °F
FN5 ON TIME STRT Maximum off-time 30 minutes
FN5 OFF TEMP STRT Temperature Based Restarting
FN6 MOP
FN7 ON AUTO OP Auto Start Operation
FN7 OFF MAN OP Not operational
FN8 T RANGE Out-of-Range Tolerance
Code / English = Code or English display format
Alarm RST = Alarm Reset Required
Alarm CLR = No Alarm Active
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