Battery Low Indication
Step Procedure / Description
ZTS‐110 thermostat will detect the
battery level every 30 minutes;
Battery low icon will be displayed
at Home page if the battery is
1
running out.
(User is required to change new
batteries.)
Defrost Indication
Step Procedure / Description
DEFROST icon will be displayed at
Home page if temperature below
41°F/5°C
1
All heaters will be forced On,
except in cool mode.
Out of Temperature Range Indication
Step Procedure / Description
HI icon will be displayed on LCD if
temperature excess the
measurement ranges 99°F/40°C.
1
All heaters will be forced Off.
Cooler will turn on if running cool
mode.
LO icon will be displayed on LCD if
temperature below the
measurement ranges 32°F/0°C.
2
All heaters will be forced On,
except in cool mode.
LCD indication
LCD indication
LCD indication
24