BREEZAIRE SENTRY III Plus Controller - Manual (Page 2)

4. The computer memory will retain all settings currently in use (see 7, below) if there is a power interruption for any
period of time, or if the unit is unplugged. There is no need to “re-program” the controller in such an event.
5.
When the compressor shuts off, the evaporator fan will continue to run for 45 seconds in order to “harvest” all
possible cooling, as an energy-saving feature.
6. In the unlikely event that the storage temperature rises above 75°F (24°C), the unit will automatically shut off after 10
minutes, and the display will alternately flash
“OH” and the temperature. The unit will remain shut off for a minimum of
30 minutes, after which you may attempt to re-start the unit with a manual RESET (see below). Or, during the 30
minute delay, a re-start of the unit may be attempted by unplugging and re-plugging the power to the unit for any
amount of time. Re-start will only occur if the temperature is below 75°. If the same shut-off occurs, contact your
Breezaire dealer.
7. You may adjust several operating conditions of the controller; namely, (a) the desired storage temperature (set-
point), (b) the units of temperature display, (c) the degrees above and below the set-point for the unit to turn on and off
(bandwidth), (d) the alarm temperature desired, and (e) the desired operating mode of the evaporator fan. Proceed as
follows:
(a) Press and hold the SET button to adjust the set-point, as described in (1) above. (Factory setting is
55
o
F).
Note: If the SET button is held more than 5 seconds while adjusting set-point, the display will enter the
control’s user-adjustable setting mode, as described next.
For other user-adjustable settings:
Hold the SET button for more than 5 seconds, until it changes to:
(b) Temperature display units (°F or °C), then let go of the SET button. (Factory setting is
o F). Change
the display mode by alternately pressing either the WARMER or COOLER button. After making this setting (or
not), you may proceed to the next setting by pressing the SET button once until the display changes to:
(c) Bandwidth setting: (Factory setting is +/- 1.0
o
F). You may reduce this setting to +/-0.5°F by pressing
the COOLER button. You may increase the setting to +/-1.5°F by pressing the WARMER button. The
equivalent changes will apply if the temperature units are °C. After making this setting (or not), you may
proceed to the next setting by pressing the SET button once until the display changes to:
(d) Alarm setting: (Factory setting is 62
o
F). The display will flash “AL”, then the setting. You may adjust
this higher or lower by pressing the WARMER or COOLER button. After making this setting (or not), you may
proceed to the next setting by pressing the SET button once until the display changes to:
(e)
Evaporator Fan mode: (Factory setting is Automatic “Au”). You may change this to always “On” by
pressing either the WARMER or COOLER button, and vice versa. After making this setting (or not), pressing
the SET button once will return the display to normal, showing the storage temperature.
NOTE: After any of the setting steps above, if no further action is taken after one minute, the display will revert
to normal. The prior setting adjustments will be retained in memory, until further change(s). If necessary, the
factory default settings may be re-set by simultaneously holding the WARMER and COOLER button down
for more than 5 seconds. The display will indicate
“Fr”.
8. If the temperature falls below 43°F (6°C), the display will flash the temperature to draw your attention. If the
temperature sensor inputs below 32°F (0°C) the display will flash
“LO”, and if above 99°F (37°C) it will flash “HI”.
9. A faulty sensor will be indicated by a display of
“Er”. The unit will shut off, but may be manually operated with the
COOLER button to turn ON, allowing for the “call for cooling” 5-minute delay. The WARMER button may be used to
turn the unit OFF, which will be followed by a 5-minute delay before the unit may be re-activated.
RESET: The controller may be manually RESET by pressing and holding the WARMER button for at least 5 seconds.
The display will momentarily show
“8.8.”, then the current version of software, then “ o F”, then the storage temperature.
If this action is taken before the unit has been OFF for about 7-8 minutes, it will not re-start for five minutes, regardless
of storage temperature at the time of RESET. NOTE: All user settings and parameters will be retained in memory
upon a manual RESET operation.
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