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IAQ TOTAL HOME COMFORT SYSTEM
15 68-0287—1
345 Dual Fuel Heat
Pump Control
0
1
2
Balance point only
Balance point plus 2° droop
Balance point/auxiliary heat lockout plus 2° droop.
See Dual Fuel Heat Pump control on page 22.
346 Dual Fuel Heat
Pump Upstage to
Furnace Timer
0
30
45
60
75
Disabled
30 minutes
45 minutes
60 minutes
75 minutes
See Dual Fuel Heat Pump control on page 22.
350 Heat Pump
Balance Point
(also compressor
lockout)
Temperature
0
5-15
10 -12
15 -9.5
20 -6.5
25 -4
30 -1
35 1.5
40 4.5
45 7
50 10
55 13
60 15.5
No heat pump compressor lockout
5°F -15.0°C
10°F -12.0°C
15°F -9.5°C
20°F -6.5°C
25°F -4.0°C
30°F -1.0°C
35°F 1.5°C
40°F 4.5°C
45°F 7.0°C
50°F 10.0°C
55°F 13.0°C
60°F 15.5°C
(Show 1/2 degree C)
Only shown for heat pump applications with an
outdoor temperature sensor present.
360 Heat Pump
Auxiliary Heat
Lockout
Temperature
0
5-15
10 -12
15 -9.5
20 -6.5
25 -4
30 -1
35 1.5
40 4.5
45 7
50 10
55 13
60 15.5
65 18.5
No heat pump auxiliary lockout
5°F -15.0°C
10°F -12.0°C
15°F -9.5°C
20°F -6.5°C
25°F -4.0°C
30°F -1.0°C
35°F 1.5°C
40°F 4.5°C
45°F 7.0°C
50°F 10.0°C
55°F 13.0°C
60°F 15.5°C
65°F 18.5°C
(Show 1/2 degree C)
Only shown for heat pump applications with an
outdoor temperature sensor present.
365 Discharge Temp
Sensor
0
1
E
None
Remote
Auto Discover
366 Zoning High
Temperature
Limit
160
0
110–170
160°F (71°C)
Disabled
110°F to 170°F (43.5°C to 76.5°C)
Only Shown if ISU110 = 1 (Master Zone Controller)
and Discharge Temperature Sensor is available.
367 Zoning Low
Temperature
Limit
40
0
35-50
160°F (71°C)
Disabled
35°F to 50°F (1.5°C to 10°C)
Only Shown if ISU110 = 1 (Master Zone Controller)
and Discharge Temperature Sensor is available.
368 Staging
Discharge
Temperature
High Limit
110
0
80-130
110°F (43.5°C)
Disabled
80°F to 130°F (26.5°C to 54.5°C)
Only Shown if ISU110 = 1 (Master Zone Controller)
and ISU174 = 2 or more. Must have Discharge
Temperature Sensor present.
369 Staging
Discharge
Temperature
Low Limit
55
0
50-60
55°F (13°C)
Disabled
50°F to 60°F (10°C to 15.5°C)
Only Shown if ISU110 = 1 (Master Zone Controller)
and ISU176 = 2. Must have Discharge Temperature
Sensor present.
370 Indoor Humidity
Sensor
0
1
2
E
Disabled
Internal—sensor in thermostat
Remote
Auto Discovered
If there is a remote sensor installed and the setting is
either auto discover or “remote” the internal thermostat
humidity sensor is disabled. If set to “internal” the
internal thermostat sensor is presented on the screen.
If set to “disabled” the internal sensor and any remote
sensors are disabled, there will be no humidity
displayed and will have no humidification/
dehumidification control.
372 Indoor
Humidification
Control
0
1
3
E
Off
Humidify with no Frost Protection
Humidify with Frost Protection
Auto Discover
Shown only if ISU370 = 1, 2 or E.
Table 3. Installer Setup Menu. (Continued)
ISU
Parameter
Number
Installer Setup
Name
Settings
(Factory Defaults Shown in Bold) Notes