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IMPORTANT NOTES:
¾
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.
¾
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.
¾
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 is activated when any Thermostat or PESM detects a temperature below 40 degrees. 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).
Indoor and Outdoor Temperature
The Model 31A00-1 Temperature Sensor is used for sensing temperatures from 0º F - 120º F and 31A00-7 Extended Range
Temperature Sensor is used for sensing temperatures from -40º F - 120º F. It features a new, high accuracy temperature sensor
that doesn’t need calibration.
The temperature can be used to activate programs for controlling temperatures indoors and in attics, garages, greenhouses,
basements, wine cellars, coolers, and freezers. The temperature can be displayed on the console or spoken over the telephone. It
can also report, log, alert, or generate an alarm if the temperature reaches freeze conditions or if the temperature goes above the
high setpoint or drops below the low setpoint programmed in the system.
Outdoor temperature zones have a High and Low temperature associated with them that can be used for control purposes. An
example of this is to program the system to turn on the bathroom heat if the outdoor temp goes below 45 degrees. High and Low
temperatures are changed the same way as a PESM.
When a temperature sensor is selected from the list of temperature devices, you may set a “Low” and “High” setpoint for
activating programs or alarms. Enter the desired temperature then press the ' # ' key.
Upstairs
2=LOW 3=HIGH #=STAT
For negative temperatures (-1
o
to -40
o
), press the ' # ' key prior to entering the temperature to make the number negative. A
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.
Temperature Control of Appliances
You can control appliances (such as a ceiling fan) using Advanced Control Programming (ACP) of the Omni IIe. For example,
the ceiling fan can be programmed to come on if the temperature goes above the High temperature.
High and Low setpoints for temperature zones are changed the same way as the PESM. However, on/off control of the ceiling
fan is done from the 1 (CONTROL) menu. Use the ceiling fan's unit number to turn it On or Off. The PESM or Model 31A00
Temperature Sensor and the ceiling fan are linked together by an event button program.
Summary of Contents for OMNI IIe
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