![background image](http://html.mh-extra.com/html/pentair/spectracool-n28/spectracool-n28_instruction-manual_1524286013.webp)
© 2014 Pentair Equipment Protection
89074139
- 13 -
DISPLAYING AND CHANGING PROGRAM VARIABLES
Access:
To view and/or change parameters, press and hold the Prg and Sel buttons for greater than 5 seconds.
Press the up or down arrow buttons until “22” is displayed, then press Sel button. When “S-P” is displayed, press
Sel.
Navigation:
Press up or down arrows to display sub-menus then press Sel to select the desired sub-menu. In the
sub-menu, use up or down arrows to display parameters for viewing or changing and press Sel. Use Prg button to
back out of menu levels as desired.
Adjust:
Use the up or down arrows to change the parameter value then push Sel to save that setting. If Sel is not
pressed, the change to the value will not be saved. Navigate to and change other parameters as desired. When
finished, push Prg to back out of the sub-menus to the main menu.
NOTE: The display will revert to normal temperature display mode if no buttons are pressed
for 60 seconds.
OPERATING PARAMETERS
Parameter
Default Value
Range
Description
r01
80 F
72 F to 120 F
Cooling set-point
r02
7 F
-
Cooling differential
A04
50 F*
32 F to 60 F
Heating set-point*
A05
7 F*
-
Heating differential*
Cooling turns on at r01 + r02, and off at r01
Heating turns on at A04, and off at A04 + A05
*Functional only on units with heater option
ALARM PARAMETERS
Parameter
Default Value
Description
P16
125 F
High Temperature Alarm
P19
40 F
Low Temperature Alarm
DISPLAYING TEMPERATURE SENSOR #2
Sensor number 2, the air outlet or condenser coil sensor, can be viewed at any time by pressing the up or down
arrow button on the front panel of the controller display. The display will revert to displaying temperature sensor
number 1 (the AC inlet temperature) after 60 seconds. Both sensors can also be read through the Ethernet and
USB connections.
COMPRESSOR RESTART TIME DELAY
A factory set 6 minute (360 second) restart delay exists to reduce residual back pressure before allowing the
compressor to restart. The compressor will stay off for the entire restart duration after the compressor is
disabled. A flashing “1” on the controller display will indicate the unit is in a compressor restart delay while
calling for cooling.
ALARM OUTPUT CONTACT
The Remote Access Control has a normally open dry contact alarm output with a resistive load rating of 250 VAC
at 3 amps. Two yellow 18 AWG wires located at the back of the air conditioner provide a connection to this output.