Setting The Cach/Cahh Controller - ECR EMI America Series Installation, Operation And Maintenance Manual

Configuration settings for CACH/CAHH
Figure 36
Setting Item Display
To access: Press MODE and PROGRAM together for 5 seconds, repeat to exit
Navigating through settings: Press PROGRAM to move to the next setting or CLOCK to move to the
previous setting; to change values, use the UP and DOWN keys; when value is reached, move to the next
setting using the PROGRAM or CLOCK button; values are stored on exit from programming mode.
Temperature
01 F-C
scale
Heat source 02 HEAT
Heat pump
03 H-P
(see Note 1)
Auto
changeover
04 d-b
differential
(see Note 2)
Check filter
05 F:Lt
time
Setting , Heat pump, is
Note 1 04
Setting , Auto changeover, is
Note 2 05
controller.
Note 3 Factory setting is ON if electric heat is installed in unit, or OFF if electric heat is not installed.
P/N 240007756, Rev. A [051509]
CACG/CAHG & CACH/CAHH
• Installation, Operation and Maintenance Manual •

Setting the CACH/CAHH Controller

Possible Value Factory
(flashing) Settings
F Fahrenheit
F
C Celsius
Available
ON
See
Note 3
Not
OFF
available
Available
ON
OFF
Not
OFF
available
x 2° – 6° 2°
2 250 hours
5 500 hours
7 750 hours 10
10 1000 hours
12 1250 hours
if setting , Heat source, is
SKIPPED 03
if setting
SKIPPED
Select temperature scale for display and operating settings.
Set this to ON if the unit is equipped with the electric heater
option.
The electric heater is required for DRY mode operation and for
automatic changeover operation.
Set this to ON if the unit is built for heat pump operation and
connected to an appropriate compressor unit.
Auto changeover automatically operates the unit in heating or
cooling based on room temperature versus setpoint.
This setting is the dead band temperature:
• Cooling is on while room temperature is at setpoint PLUS
dead band.
• Heating is on while room temperature is at setpoint MINUS
dead band.
• Example: setpoint = 68°F, dead band is 3°F — cooling is on
with room temperature at or above 71°F — heating is on
with room temperature at or below 65°F.
Set this time for automatic notice of time to change the
filter. At the end of the time period, the control will display a
FILTER CHECK warning. This warning will also appear if four
evaporator freeze-ups should occur in a 24-hour period.
Reset the warning, restarting the time period, by pressing
MODE and FAN buttons together for 3 seconds.
.
OFF
, Heat source, is . This setting is for operation with handheld
03 OFF
35
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