Installer Setup (ISU)
Installer Options
On initial setup the thermostat will enter the ISU menu. If entering the ISU menu after initial setup, follow the steps below:
-
Press and hold the bottom left button and Up arrow
button for 5 seconds to access the INSTALLER SETUP (ISU).
-
The ISU number is on the left. The ISU setting is on the right.
When an ISU number is displayed, press
or 
to change the setting. -
After choosing the correct setting for an ISU, press NEXT to advance to the next ISU setting.
-
To finish setup, press the SAVE button.
Installer Setup Options (ISU)
Note: Depending on system settings, not all options may be available.
|
# ISU |
ISU Name |
ISU Options (factory defaults are bold) |
||
|---|---|---|---|---|
|
1050 |
Temperature Indication Scale |
F = Fahrenheit C = Celsius |
||
|
1060 |
Outdoor Sensor (TH1320U4002 only. For lockouts only. Does not display) |
0 = None 1 = Wired Outdoor Sensor |
||
|
2000 |
Heating System Type |
1 = Conventional Forced Air Heat 2 = Heat Pump 3 = Radiant Heat 5 = None (Cool Only) |
||
|
2010 |
Heating Equipment Type |
Conventional Forced Air Heat: 1 = Standard Efficiency Gas Forced Air 2 = High Efficiency Gas Forced Air 3 = Oil Forced Air 4 = Electric Forced Air 5 = Hot Water Fan Coil
Heat Pump: 7 = Air to Air Heat Pump 8 = Geothermal Heat Pump
Radiant Heat: 9 = Hot Water Radiant Heat 12 = Steam |
||
|
2060 |
Reversing Valve O/B |
0 = O (O/B in Cool) 1 = B (O/B in Heat) |
||
|
2070 |
Compressor Stages |
0, 1, 2 Note: Only 1 compressor stage available on TH1110U4000. |
||
|
2071 |
Heat Stages / Backup Heat Stages |
Heat Stages: 1, 2 Backup Heat Stages: 0, 1 (TH1320U4002 only) |
||
|
2110 |
Fan Control in Heat |
1 = Equipment Controls Fan 2 = Thermostat Controls Fan Note: Only shown if 2010 = 4 or 5 |
||
|
2175 |
Aux/E terminal control
|
0 = Drive both Aux & E together 1 = Aux and E independent |
||
|
2180 |
Backup Heat Source (Heat Pump Only)
|
31 = Electric Forced Air 32 = Standard Efficiency Gas Forced Air 33 = High Efficiency Gas Forced Air 34 = Oil Forced Air, Hot Water Fan Coil 35 = Hot Water Radiant Heat 36 = Other |
||
|
2185 |
Emergency Heat Source
|
|||
|
3000 |
System Changeover |
0 = Manual 1 = Automatic |
||
|
3015 |
Auto Changeover Differential |
0 °F to 5 °F 0.0 °C to 2.5 °C Note: The Differential setting is the minimum number of degrees from set-point needed to switch from the last mode running (Heat or Cool) to the opposite mode when the thermostat is in auto-changeover. |
||
|
3020 |
Finish With High Heat Stage |
0 = No 1 = Yes Note: TH1320U4002 only. |
||
|
3021 |
Finish With High Cool Stage |
0 = No 1 = Yes Note: TH1320U4002 only. |
||
|
3090 |
Backup Heat Droop |
[0] = Comfort 2 °F to 15 °F (in 1 °F increments) 1.0 °C to 7.5 °C (in 0.5 °C increment). Note: 0 (comfort) setting only available if Backup Heat (ISU 2180) is set to Electric. (TH1320U4002 only.) |
||
|
3110 |
Upstage Timer for Backup Heat |
Note: (TH1320U4002 only) If 3090 = 0 and 2180 = 31, 3110 only has settings 0-3). |
||
|
3120 |
Compressor Lockout / Balance Point (TH1320U4002 only) |
|
||
|
3121 |
Outdoor Lockout Backup Heat (TH1320U4002 only) |
|
||
|
3125 |
Lockout Fan after a Cool call |
|
||
|
3140 |
Compressor Cycle Rate (Stage 1) |
1 - 6 |
||
|
3141 |
Compressor Cycle Rate (Stage 2) |
1 - 6 (TH1320U4002 only) |
||
|
3150 |
Heating Cycle Rate (Stage 1) |
1 - 12 |
||
|
3151 |
Heating Cycle Rate (Stage 2) |
1 - 12 (TH1320U4002 only) |
||
|
3160 |
Heating Cycle Rate Auxiliary Heat |
1 - 12 (TH1320U4002 only) |
||
|
3165 |
Heating Cycle Rate Emergency Heat |
1 - 12 (TH1320U4002 only) |
||
|
3240 |
Compressor Protection |
0 = Off 1 - 5 minutes |
||
|
4100 |
Maximum Cool Setpoint |
50°F to 99°F 10.0°C to 37.0°C |
||
|
4101 |
Minimum Cool Setpoint |
50°F to 99 °F 10.0°C to 37.0 °C |
||
|
4102 |
Maximum Heat Setpoint |
40°F to 90°F 4.5°C to 32.0°C |
||
|
4103 |
Minimum Heat Setpoint |
32 °F to 50 °F (Default is 40 °F) 0 °C to 10.0 °C (Default is 4.5 °C) |
||
|
7110 |
Air Filter Replacement Reminder |
|
||
|
14003 |
Backlighting |
0 = On Demand 1 = Continuous Note: Common wire needed for continuous. |
||
|
14004 |
Backlight brightness |
1 - 5 Note: Only displayed if Continuous backlight selected. |
||
|
14005 |
Idle screen selection |
0 - Minimum Information shown 2 - Maximum display information shown |
||
|
14020 |
Temperature Display Offset |
-3°F to 3°F (0) -1.5°C to 1.5°C (0) |
ISU#: 1050
Temperature Indication Scale
F = Fahrenheit
C = Celsius
ISU#: 1060
Outdoor Sensor (TH1320U4002 only. For lockouts only. Does not display)
0 = None
1 = Wired Outdoor Sensor
ISU#: 2000
Heating system type
1 = Conventional Forced Air Heat
2 = Heat Pump
3 = Radiant Heat
5 = None (Cool Only)
ISU#: 2010
Heating equipment type
Conventional Forced Air Heat:
1 = Standard Efficiency Gas Forced Air
2 = High Efficiency Gas Forced Air
3 = Oil Forced Air
4 = Electric Forced Air
5 = Hot Water Fan Coil
Heat Pump:
7 = Air to Air Heat Pump
8 = Geothermal Heat Pump
Radiant Heat:
9 = Hot Water Radiant Heat
12 = Steam
ISU#: 2060
Reversing Valve O/B
0= O (O/B in Cool)
1=B (O/B in Heat)
ISU#: 2070
Compressor Stages
0, 1, 2
Only 1 compressor stage available on TH1110U4000
ISU#: 2071
Heat Stages/Backup Heat Stages
Heat Stages: 1, 2
Backup Heat Stages: 0, 1 (TH1320U4002 only)
ISU#: 2110
Fan Control in Heat
1 = Equipment Controls Fan
2 = Thermostat Controls Fan
(Only shown if 2010 = 4 or 5)
ISU#: 2175
Aux/E terminal control (TH1320U4002 only)
0 = Drive both Aux & E together
1 = Aux and E independent
ISU#: 2180
Backup Heat Source (Heat Pump Only) (TH1320U4002 only)
31 = Electric Forced Air
32 = Standard Efficiency Gas Forced Air
33 = High Efficiency Gas Forced Air
34 = Oil Forced Air, Hot Water Fan Coil
35 = Hot Water Radiant Heat
36 = Other
ISU#: 2185
Emergency Heat Source (TH1320U4002 only)
31 = Electric Forced Air
32 = Standard Efficiency Gas Forced Air
33 = High Efficiency Gas Forced Air
34 = Oil Forced Air, Hot Water Fan Coil
35 = Hot Water Radiant Heat
36 = Other
ISU#: 3000
System Changeover
0 = Manual
1 = Automatic
ISU#: 3015
Auto Changeover Differential
0 °F to 5 °F
0.0 °C to 2.5 °C
The Differential setting is the minimum number of degrees from set-point needed to switch from the last mode running (Heat or Cool) to the opposite mode when the thermostat is in auto-changeover.
ISU#: 3020
Finish With High Heat Stage
0 = No
1 = Yes
(TH1320U4002 only)
ISU#: 3021
Finish With High Cool Stage
0 = No
1 = Yes
(TH1320U4002 only)
ISU#: 3090
Backup Heat Droop
0 = Comfort
2 °F to 15 °F (in 1 °F increments)
1.0 °C to 7.5 °C (in 0.5 °C increment).
0 (comfort) setting only available if Backup Heat (ISU 2180) is set to Electric.(TH1320U4002 only)
ISU#: 3110
Upstage Timer for Backup Heat
0 = Off
1 = 30 minutes
2 = 45 minutes
3 = 60 minutes
4 = 75 minutes
5 = 90 minutes
6 = 2 hours
7 = 3 hours
8 = 4 hours
9 = 5 hours
10 = 6 hours
11 = 8 hours
12 = 10 hours
13 = 12 hours
14 = 14 hours
15 = 16 hours
TH1320U4002 only: If 3090 = 0 and 2180 = 31, 3110 only has settings 0-3).
ISU#: 3120
Compressor Lockout / Balance Point (TH1320U4002 only)
0 = Off
1 = -15°F (-26°C)
2 = -10°F (-23.5°C)
3 = -5°F (-20.5°C)
4 = 0°F (-18°C)
5 = 5°F (-15°C)
10 = 10°F (-12°C)
15 = 15°F (-9.5°C)
20 = 20°F (-6.5°C)
25 = 25°F (-4°C)
30 = 30°F (-1°C)
35 = 35°F (1.5°C)
40 = 40°F (4.5°C)
45 = 45°F (7°C)
50 = 50°F (10°C)
55 = 55°F (13°C)
60 = 60°F (15.5°C)
ISU#: 3121
Outdoor Lockout Backup Heat (TH1320U4002 only)
0 = Off
5 = 5°F (-15°C)
10 = 10°F (-12°C)
15 = 15°F (-9.5°C)
20 = 20°F (-6.5°C)
25 = 25°F (-4°C)
30 = 30°F (-1°C)
35 = 35°F (1.5°C)
40 = 40°F (4.5°C)
45 = 45°F (7°C)
50 = 50°F (10°C)
55 = 55°F (13°C)
60 = 60°F (15.5°C)
65 = 65°F (18.5°C)
ISU#: 3125
Lockout Fan after a Cool call
[0] = Off
1 = 5 min
2 = 10 min
3 = 15 min
4 = 20 min
5 = 25 min
6 = 30 min
7 = 35 min
8 = 40 min
9 = 45 min
10 = 50 min
11 = 55 min
12 = 60 min
13 = 65 min
14 = 70 min
15 = 75 min
16 = 80 min
17 = 85 min
18 = 90 min
19 = 95 min
20 = 100 min
21 = 105 min
22 = 110 min
23 = 115 min
24 = 120 min
ISU#: 3140
Compressor Cycle Rate (Stage 1)
1 – 6
ISU#: 3141
Compressor Cycle Rate (Stage 2)
1 – 6 (TH1320U4002 only)
ISU#: 3150
Heating Cycle Rate (Stage 1)
1 – 12
ISU#: 3151
Heating Cycle Rate (Stage 2)
1 – 12 (TH1320U4002 only)
ISU#: 3160
Heating Cycle Rate Auxiliary Heat
1 – 12 (TH1320U4002 only)
ISU#: 3165
Heating Cycle Rate Emergency Heat
1 – 12 (TH1320U4002 only)
ISU#: 3240
Compressor Protection
0 = Off
1 - 5 minutes
ISU#: 4100
Maximum Cool Setpoint
50°F to 99°F
10°C to 37°C
ISU#: 4101
Minimum Cool Setpoint
50°F to 99 °F
10.0°C to 37.0 °C
ISU#: 4102
Maximum Heat Setpoint
40°F to 90°F
4.5°C to 32.0°C
ISU#: 4103
Minimum Heat Setpoint
32 °F to 50 °F (Default is 40 °F)
0 °C to 10.0 °C (Default is 4.5 °C)
ISU#: 7110
Air Filter Replacement Reminder
0 = Off
1 = 10 Run Time Days
2 = 20 Run Time Days
3 = 30 Run Time Days
4 = 45 Run Time Days
5 = 60 Run Time Days
6 = 90 Run Time Days
7 = 120 Run Time Days
8 = 150 Run Time Days
9 = 30 Calendar Days
10 =45 Calendar Days
11 =60 Calendar Days
12 =75 Calendar Days
13 =3 Calendar Months
14 =4 Calendar Months
15 =5 Calendar Months
16 =6 Calendar Months
17 =9 Calendar Months
18 =12 Calendar Months
19 =15 Calendar Months
ISU#: 14003
Backlighting
0 = On Demand
1 = Continuous
Common wire needed for Continuous.
ISU#: 14004
Backlight brightness
1 - 5
Only displayed if Continuous Backlight selected.
ISU#: 14005
Idle screen selection
0 - Minimum Information shown
2 - Maximum display information shown
ISU#: 14020
Temperature Display Offset
-3°F to 3°F (0)
-1.5°C to 1.5°C (0)
Video: Configure ISU Settings
Watch this video to see how to configure ISU settings on the FocusPRO® N100 Series Thermostat
Video: Lock out fan after call for Cool
Watch this video to understand the importance of using the fan lockout feature after a cooling call and learn how to configure it on the FocusPRO® N100 Series Thermostat.
Video: Control Options for Heat Pump Applications on the FocusPRO® N100 Series Thermostat
Watch this video to explore the control options available for heat pump applications on the FocusPRO® N100 Series Thermostat.