6 | Installation guide
6 | Installation guide
Home Screen
At Home screen, LCD displays time, room
temperature, fan speed, heat/cool output status
icons.
LCD backlight stays on for 3 seconds after key
presses.
Clock and Date setting
• Press [CLOCK] to start the setting
• Press [
▲
] / [
▼
] to change the day of week
• Press [CLOCK] again to confirm day of week
setting and start to adjust hour
• Press [
▲
] / [
▼
] to change the hour
• Press [CLOCK] again to confirm hour setting and
start to adjust minutes
• Press [
▲
] / [
▼
] to change the minutes
• Press [CLOCK] again to confirm minutes setting
and start to adjust day of week
• Press [middle key] to confirm and exit. Or it will
automatically exit in 20 seconds
Anti-Freeze mode
When the room temperature is below 40 °F / 5 °C or
remote water temperature sensor is below 34 °F /
1 °C, or 24VAC trigger signal is ON at FZ, fan-speed
is to Low and All Water valves open (Both W and
Y outputs are turned on). “ ”defrost indicator is
shown on the screen.
2-pipe system:
Valve output (W) should be On to keep water
flowing.
4-pipe system:
Cool output should On and Heat output should
On.(Both W and Y outputs should be ON)
Drain Pan mode
When +24VAC signal is triggered at DP terminal then
Fan forces to OFF and All Water valves Close (Both W
and Y outputs are turned OFF).
“Water droplet” indicator is visible on the screen.
Until the unit is ready for use again. Please contact
your HVAC service provider
