SAS900MTK-0
A0
9
Note** When presented with 24VAC on “L” terminal, the “Alarm” icon will flash on the display.
CHECK THERMOSTAT OPERATION----------------------------------------------------------------------------
If at any time during testing your system does not operate properly, contact a qualified service person.
Turn on power to the system
FAN OPERATION
Move the system switch to the
OFF
position. If your system does not have a “G” (Fan)
terminal connection, skip to the Heating System.
1.
Move the fan switch to the ON position. The blower should begin to operate.
2.
Move the fan switch to the AUTO - position. The blower should stop immediately.
HEATING SYSTEM
1.
Move the SYSTEM switch to the HEAT position. If the auxiliary heating system has a
standing pilot, be sure to light it.
2.
Press ▲ to adjust thermostat setting above room temperature. The 1 stage heating should
begin to operate.
3.
Both stages of heating system will begin to operate when the set point is 3
℉（
2
℃）
above
ambient. AUX +2 display will be shown. If +2 is flashing, the second stage will delay 15
minutes before starting. (See configuration menu 2)
4.
Press ▼ to adjust temperature setting below room temperature. The heating system should
stop operating.
COOLING SYSTEM
CAUTION:
To prevent compressor damage, if the outdoor temperature is below10ºC (50ºF),
DO NOT
operate the cooling system.