5407934-UIM-C-1119
42 Johnson Controls Ducted Systems
Line
Frequency
60 HZ 50 HZ or 60 HZ
Used to ensure the thermostat opera-
tion timers are accurate and allow for
preemptive control if a power-out
occurs. The thermostat uses the line
frequency as a timing source for the tim-
ers it controls. If you choose the incor-
rect line frequency, the timers are
inaccurate. For example, if you select
the 50 Hz option when operating on a
60 Hz power grid, a timer that is nor-
mally 5 minutes is 6 minutes. Similarly,
if you select the 60 Hz option when
operating on a 50 Hz power grid, a timer
that is normally 6 minutes is 5 minutes.
If the correct line frequency is selected
and the timers are not accurate, this
may be due to an impending power
cycle or an abnormality in the power
quality.
Brands York
None, York,
Coleman,
Luxaire,
Champion,
Fraser-Johnson
Allows you to specify which brand dis-
plays on the Sleep screen
TABLE 7:
General System Settings (Continued)
Name
Default
Setting
Available
Settings
Explanation
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