Installer setup options (ISU) (continued)
# ISU ISU Name
711
Air Filter
Replacement
Reminder
Note: Set a reminder for when to change your air filter. Choose either calendar or
equipment run time-based reminder.
1400
Backlighting
Note: Common wire needed for continuous.
1401
Backlight
brightness
Note: Only displayed if continuous backlight selected.
1415
Daylight Saving
Time
Note: Set to Off in areas that do not follow Daylight Saving Time.
1420
Temperature
Display Offset
Note: 0 °F - 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.
Specifications
Temperature Setpoint Ranges
Heat: 40 °F to 90 °F (4.5 °C to 32.0 °C)
Cool: 50 °F to 99 °F (10.0 °C to 37.0 °C)
Operating Ambient Temperature
37 °F to 102 °F (2.8 °C to 38.9 °C)
Shipping Temperature
-20 °F to 120 °F (-28.9 °C to 48.9 °C)
Electrical Ratings
Terminal
W Heating
W2 (Aux) Heating (PSTSP21AWH only)
E Emergency Heat (PSTSP21AWH only)
Y Compressor Stage 1
G Fan
O/B Changeover
ISU Options (factory default in bold)
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
0 = On Demand
1 = Continuous
1 - 5
0 = Off
1 = On
-3 to 3F (0)
-1.5 to 1.5C (0)
Voltage (50/60Hz)
20-30 Vac
20-30 Vac
20-30 Vac
20-30 Vac
20-30 Vac
20-30 Vac
9
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
Operating Relative Humidity
5% to 90% (non-condensing)
Physical Dimensions in inches (mm)
(H x W x D)
3.86" H x 5.19" W x 1.08" D
98.24 mm H x 132 mm W x 27.5 mm D
Running Current
0.02-1.0 A
0.02-1.0 A
0.02-0.5 A
0.02-1.0 A
0.02-0.5 A
0.02-0.5 A