CACG/CAHG & CACH/CAHH
Air Handlers
• Installation, Operation and Maintenance Manual •
P/N 240008108, Rev. B [082509]
43
Configuration mode, the unit will run
heating operation as described under
Heat mode.
Set Time mode
The clock is used by the 7-day programming
mode.
The
1.
CLOCK button is used to enter
or exit the Set Time mode.
The Set Time mode can be entered while
2.
the control is in any mode, including the
Off mode.
To enter the Set Time mode, press the
3.
CLOCK button for three (3) sec-
onds.
Pressing the PROGRAM
4.
button will
advance to the next item.
The order is (1) Day of week, (2) Hour
5.
and (3) Minute.
The time of day and day of week can be
6.
changed using the UP or DOWN AR-
ROW buttons.
When the
7.
CLOCK button is pressed
again or left idle for twenty (20) seconds,
the control will save the new settings and
return to the previous mode.
NOTICE
The unit will not automatically adjust for
Day Light Savings time.
7-Day Programming mode
The 7-day Programming mode is used to store
the settings for Pre-Program Run mode.
When the unit is in either the Off or On
1.
mode, the 7-Day Programming mode can
be entered by pressing the PROGRAM
+
CLOCK buttons simultane-
ously for three seconds.
When the PROGRAM
2.
+
CLOCK buttons are pressed simultane-
ously again or left idle for twenty seconds,
the control will save the new settings and
return to the previous interface mode.
While in the 7-Day Programming mode,
3.
the words “7-DAY PROGRAM” are dis-
played on the LCD.
Use the UP or DOWN ARROW buttons
4.
to change the time, temperature or period
settings.
Use the
5.
CLOCK or PROGRAM
buttons to select the mode to be
changed.
Settings can be entered for:
6.
Day of week
a.
Period of day
b.
Hour
c.
Minute
d.
Cooling setpoint temperature
e.
Heating setpoint temperature
f.
Auto setpoint temperature.
g.
Quick Copy
Quick copy is a feature of the 7-Day Program-
ming mode. It is used to copy the settings of
any day to the rest of the week.
While in 7-Day Programming, select the day
to be copied. Then press the FAN + PRO-
GRAM
buttons simultaneously for three
seconds. The selected day will be copied to
the rest of the week.
Manual Run mode
This is the normal operating non Pre-Program
Run mode. Settings for temperature, mode
and fan speed are selected by the user and
will not change with the passing of time. The
word “PROGRAM” does NOT display on
the LCD.
Pre-Program Run mode
This feature allows the setpoint temperature
to be changed according to the pre-program
setpoint and time of day settings. The setpoint
and time settings are programmed into the
CACH/CAHH Microprocessor Controller Operation
(continued)
