Cruisair SMXht Panduan Pengoperasian & Pemrograman - Halaman 2
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Adjusting the Fan Speed:
The FAN key is used to adjust the fan speed while in Manual Fan Speed Mode and to switch
from Manual to Automatic Fan Speed Modes. The fan may be run manually whether the
system is on or off. The word MANUAL appears in the display while in that mode. Automatic
Fan Speed Mode may be operated only when the system is on. Fan behavior also depends
on how the Fan Mode function is programmed - "C" for continuous or "I" for intermittent
running with the compressor (see Programming below).
Dimming the Display:
Press the MODE and Up Arrow keys simultaneously and repeatedly to select the display
brightness setting.
Backlight Mode:
While in the Sleep Mode (backlight is off) press any button to light the display, and then
operate as usual.
Important Memory Function:
After changing modes, programming settings, setpoint, etc., wait at least 30 seconds before
turning off main power supply in order for new settings to be maintained in memory.
Programming
SMXht keypad/display must be in the Off Mode prior to entering Programming Mode; pressing
the POWER key turns the display off or on. Once in the Off Mode, then:
1. Simultaneously press and hold the MODE and Down Arrow keys for three seconds.
Successful entry into the Programming Mode is indicated by the word "PROG" and a
flashing "1" in the display.
2. Use the Up or Down Arrow keys to scroll until the desired program Function Number is
displayed.
3. Press the MODE key to enter the desired function. The current value and the word
"PROG" will be displayed.
4. Use the Up or Down Arrow keys to change the value of that program.
5. Press the POWER key to save the new settings, exit the Programming Mode, and return
to the Off Mode.
Note: If SMXht is programmed for displaying °C (rather than the factory setting °F), then
functions 3 & 4 should be adjusted. For function 3, the factory setting of 12 (or 1.5°F) should
be changed to 7 (7/8 = 0.8°C). For function 4, the factory setting of 4 (or 0.5°F) should be
changed to 2 (2/8 = 0.3°C). For these functions, 1°F (or 8) = 0.6°C (or 5).
See Programming Summary Table.
L-2367
Programming Summary Table for SMXht Keypad/Displays
Programmable Function
Compressor Time Delay
Fahrenheit/Celsius
Compressor Differential
Fan Response Differential
Low Fan Speed
High Fan Speed
Fan Mode
AC Line Voltage Calibration
Temperature Calibration
HU (Humidity) Precirculation
HU Dehumidification
HU Time Period
Variable or 2-Speed Fan
(2-Speed Fan for SMX Net only)
High to Low Speed Adjustment
(2-Speed Fan for SMX Net only)
Software Version
Software Revision
Low Pressure Switch Test
High Pressure Switch Test
LED Segment Test
Backlight Mode
Select DX or TW power/logic board
Select SMXII power/logic board.
(SMX Net will be available in future)
L-2367
Function
Factory
Range
Setting
Number
1
0
0 - 70 sec
2
F
F or C
3
12 (12/8 = 1.5˚)
2 to 31
4
4 (4/8 = 0.5˚)
2 to 31
5
38
2 to 57
6
60
41 to 99
7
C
C or I
8
-
± 1%
9
-
± 1%
10
10 (min)
0 to 30 min
11
30 (min)
10 to 60 min
12
12 (hrs)
2 to 16 hrs
F1 or
13
F1 (variable)
F2 (2-Speed)
14
38
00 to 6E
Current Version
15
16
Current Revision
OA = Okay
17
n/a
FA = Fault
OA = Okay
18
n/a
FA = Fault
Lights all LED
19
n/a
Segments
On = continuous
20
On
SL = sleep mode
dE=DX or CH=TW
21
dE
(do not change)
II or nE (Net)
22
II
(do not change)