Ta21W01 Thermostat Operation - WaterFurnace Geothermal heating and cooling system Owner's Manual

THERMOSTAT OPERATION
TA21W01 Thermostat
The Thermostat Buttons and Switches
1 (Up arrow) Raises temperature setting.
(Down arrow) Lowers temperature setting.
2
3 FAN switch (ON,AUTO).
4
SYSTEM key (HEAT ( ), EMER*, OFF, COOL ( ),
AUTO ( ).
*EMER is available when H.P. is selected in the configuration menu.
The Display
5 Indicates a malfunction with the system.
6 Flame icon( ) is displayed when the SYSTEM mode is in HEAT.
Flame icon ( ) is displayed flashing when 2nd-stage heat (Aux or
Emergency) is energized. Snowflake icon ( ) is displayed
(non-flashing) when the SYSTEM mode is in COOL. Snowflake
and Flame icons are displayed when the SYSTEM mode is in AUTO. Snowflake and Flame icons are displayed
(flashing) if the thermostat is in lockout mode to prevent the compressor from cycling too quickly.
7 EMER is displayed flashing when the system switch is in EMER position.
Displays current temperature.
8
20
SYSTEM FAN
MODE AUTO
ON
EMER
STG1+2
6