HAI OMNI LT, Owner'S Manual

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To set a temperature setpoint, press 2 (HEAT) or 3 (COOL).
For Celsius temperatures, press the ' # ' key prior to entering the temperature to make the number negative. The Celsius
temperature may also be specified in 0.5 degree steps if three numeric digits are entered. The third digit adds a .5 to the first two
digits if it is any- thing other than zero. Enter a leading zero if necessary.
In additions to setpoint changes, an energy saver may be turned On or Off. It may also be turned On or Off for a specific
duration.
To turn the energy saver Off, select 0 (OFF). To turn the energy saver On, select 1 (ON). To turn the energy saver On or Off for
a specific duration, select 9 (TIME) prior to selecting On or Off. Enter the time as described under Control - Unit Commands.
Downstairs
0=OFF 1=ON 2=HEAT
↓
Downstairs
3=COOL 9=TIME #=STAT
↑
ENTER TIME
MINUTES (1-99) #=H/M/S
Downstairs FOR 15M
0=OFF 1=ON
↓
The current status of a temperature zone may be displayed by selecting ' # ' (STAT) key from the main temperature menu. The
status display differs depending on the temperature zone type.
When you are finished, press the ' * ' key twice to return to the top-level display.
IMPORTANT NOTES:
! There is a 3-minute minimum on and off time for PESMs designed to prevent short cycling your HVAC compressor. If
the PESM has just turned the HVAC system on or off, it will wait 3 minutes before changing it, even though the display
does change.
!
If you change the Heat or Cool setback temperature on the PESM, the system will insure that there is always at least four
degrees Fahrenheit difference between the Heat and Cool temperatures by altering the other setback temperature as
necessary.
! PESMs are
NOT
affected by All On or All Off commands.
Freeze Alarms
Thermostats and PESMs can also be used to report potential freeze conditions before damage to pipes and appliances can occur.
An alarm will be generated if a temperature below 40 degrees is detected by any Thermostat or PESM in the system. The alarm
will not clear until the temperature exceeds 45 degrees.
When the alarm is initiated, the console beeper will be turned on and an alarm dial-out sequence will be initiated after the normal
dial-out delay. Both voice and digital communicator dial-outs may be used. The voice dial-out will follow the Dial Order as
specified in Set Up Dial. The digital communicator will report the Freeze Alarm Code to the Central Station.
The sounder is not activated for freeze alarms (this feature must be activated by your installer).
Outdoor Temperature
A Model 14A00 Outdoor Temperature Sensor is available which may be mounted outdoors to read the outdoor temperature. The
zone used for the outdoor sensor is set up as an outdoor temperature zone type, rather than as a PESM zone type. When set up
this way, the corresponding auxiliary output is not dedicated to the Model 14A00 and may be used for other purposes. Also,
freeze alarms will not be generated by the outdoor temperature.