Saswell SAS900MTK-0, Operating Instructions Manual, Page: 3 / 20

SAS900MTK-0 A0
2

Low Battery Indicator.

Display temperature calibration.
IMPORTANT SAFETY INFORMATION: ---------------------------------------------------------------------------------------

Always turn off power at the main power source by removing the fuse, or switching the circuit
breaker to the off position before installing, removing, cleaning, or servicing this
thermostat.

Read all of the information in this manual before installing this thermostat.

Use a professional contractor to install this thermostat.

This is a 24VAC low-voltage thermostat. DO NOT INSTALL ON VOLTAGES HIGHER THAN
30 VAC.

ALL wiring must conform to local and national building and electrical codes and ordinances.

Do not short (jumper) across terminals on the gas valve or at the system control to test
installation. This will damage the thermostat and void the warranty.

Do not switch the system to cool if the temperature is below 50ºF (10ºC). This can damage
the air conditioning system.

This thermostat will not control your heating/air conditioning system without power. Two “AAA”
alkaline batteries are only used to provide continuous time and temperature display
during power loss. Installed batteries will allow programming prior to installation.

Replace batteries when the battery icon indicates the low battery message.

Change the air filter when the Filter Change Icon begins blinking.

Use this thermostat only as described in this manual.