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ISU
ISU Name
ISU Options (defaults in
bold)
Notes
1013
Low
Outdoor
Temp Vent
Lockout
Off, -20 °F to -40 °F (in 5 °F
increments) or
-28.0 °C to -4.0 °C (in 2.0 °C
increments)
ISU 130 must be set to Wired or Internet. This ISU
is only displayed when ISU 1000 Ventilation Type
is set to ERV / HRV or Fresh Air Damper.
1014
High
Outdoor
Temp Vent
Lockout
Off, 80 °F to 110 °F (in 5 °F
increments) or 26 °C to 44
°C (in 2 °C increments)
ISU 130 must be set to Wired or Internet. This ISU
is only displayed when ISU 1000 Ventilation Type
is set to ERV / HRV or Fresh Air Damper.
1015
High
Outdoor
Dewpoint
Vent
Lockout
Off, 65 °F to 85 °F (in 5 °F
increments) or 18 °C to 30
°C (in 2 °C increments)
ISU 130 must be set to Internet. This ISU is only
displayed if ISU 1000 Ventilation Type is set to
ERV/ HRV or Fresh Air Damper.
1017
Vent Core
Reminder
Off, 3, 6, 9, 12 months
This ISU is displayed only if ISU 1000 is set to
ERV/HRV.
1018
Vent Filter
Reminder
Off, 3, 6, 9, 12 months
1100
UV
Devices
0 – 2
Some systems may have two UV devices, one for
the A-Coil and another for Air Treatment. A
replacement reminder can be setup for each one
separately.
1105
UV Bulb 1
Reminder
Off, 6, 12, 24 months
1106
UV Bulb 2
Reminder
Off, 6, 12, 24 months
1401
Idle
Brightness
0= Off, 0 – 5
Adjust brightness of an inactive backlight (idle
screen) from default 0 (backlight off) to 5
(maximum brightness).
1410
Clock
Format
12 hour, 24 hour
1415
Daylight
Saving
On, Off
Set to Off in areas that do not follow Daylight
Saving Time.
1420
Temp
Offset
Off, -3 °F to 3 °F (in 1 °F
increments) or
-1.5 °C to 1.5 °C (in 0.5 °C
increments)
0 °F (0 °C) – No difference in displayed
temperature and the actual room temperature.
The thermostat can display up to 3 °F (1.5 C)
lower or higher than the actual measured
temperature.
Performing a system test
You can test the system setup in ADVANCED MENU under SYSTEM TEST option.
1. Press and hold Menu on the thermostat for 5 seconds to access ADVANCED MENU options.
2. Touch or to go to SYSTEM TEST.
3. Touch Select or touch text area.
4. Touch or to select system test type. Touch Select or touch text area.
5. For the heat test and cool test, use or to activate each stage of the equipment. For the fan test, use or to turn
the fan on and off.
NOTE: The clock is used as a timer while the stages are running. The Heat On and Cool On indicators are
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