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Installation Guide
Setup function
9
Stage 1 compressor
cycle rate (CPH)
10
Second Stage
Compressor
Cycle Rate
12
Manual/Auto
changeover
14
Temperature
display
15
Compressor
protection
19
Service Indicator
23
Backlight Mode
26
Aux Control
27
Heat temperature
range stops
28
Cool temperature
range stops
Installer system test
To begin, press and hold the
buttons until the display changes
System test
10
Heating system
20
Emergency heating
system
30
Cooling system
40
Fan system
69-2019EFS—02
Settings & options (factory default in bold)
3
Recommended for most compressors
[Other cycle rate options: 1, 2, 4, 5 or 6 CPH]
3
Compressor Cycle Rate
[Other options: 1, 2, 4, 5, 6 for Special Applications]
A
Auto Discover
0
Manual changeover (Heat/Cool/Off)
1
Auto changeover (Heat/Cool/Auto/Off)
2
Auto changeover only (Auto)
0
Fahrenheit
1
Celsius
5
Five-minute compressor off time
[Other options: 0, 1, 2, 3 or 4-minute off time]
00–199
Diagnostic Codes
See Special function section on page 5.
0
Disabled
1
Enabled
0
Comfort
1
Economy
See Special function section on page 5.
90
Max. heat temperature setting is 90 °F (32 °C)
[Other options: 40 °F to 89 °F (4.5 °C to 31.5 °C)]
50
Min. cool temperature setting is 50 °F (10 °C)
[Other options: 51 °F to 99 °F (10.5 °C to 37 °C)]
M23675
and
s
t
System status
0
Heat and fan turn off.
1
Stage 1 heat turns on. Fan turns on if Setup Function 1 is set to 1,
5, 9 or 10 OR Setup Function 3 is set to 1.
2
Stage 2 heat turns on.
3
Stage 3 heat turns on.
0
Heat and fan turn off
1
Heat and fan turn on
0
Compressor and fan turn off
1
Compressor and fan turn on
2
Stage 2 compressor turns on
0
Fan turns off
1
Fan turns on
Test number
System status
10
Press
/
to turn system on/off.
s
t
Press NEXT to advance to next test.
Press DONE to terminate system test.
0
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