Pro1 T855i Installation manual - Manual (Page 16)

FEATURES & SPECIFICATIONS
16
The display range of temperature
The control range of temperature
Load rating
Display accuracy
Swing (cycle rate or differential)
Power source
Operating ambient
Operating humidity
Dimensions of thermostat
41ºF to 95ºF (5ºC to 35ºC)
44ºF to 90ºF (7ºC to 32ºC)
1 amp per terminal, 1.5 amp maximum all terminals combined
± 1ºF
Heating is adjustable from 0.2ºF to 2.0ºF
Cooling is adjustable from 0.2ºF to 2.0ºF
18 to 30 VAC, NEC Class II, 50/60 Hz for hardwire (common wire)
32ºF to +105ºF (0º to +41ºC)
90% non-condensing maximum
4.8 ”W x 4.4”H x 1”D
Specifications
Temporary and Permanent Hold Feature
Temporary hold: The thermostat will display
HOLD and RUN on the bottom of
your screen when you press the or
key. If you do nothing, the temperature will
remain at this setpoint temporarily for 4
hours. Your program setpoint will then
replace your temporary setpoint.
Permanent hold: If you press HOLD key at
the bottom of your screen, you will see HOLD
appear below the setpoint temperature in the
display. The thermostat will now permanently
stay at this setpoint and can be adjusted
using the
or keys.
To return to program: Press the RUN
key at the bottom of your screen to exit
either temporary or permanent hold.
Filter Change and other Reminders
If your installing contractor has configured
the thermostat to remind you when the air
filter needs changed, you will see
FILT in the
display when your air filter needs changed.
FILT will be shown in the display after your
system has run long enough to require an air
filter change.
Resetting the filter change reminder: When
FILT reminder is displayed, you should
change your air filter and reset the reminder
by holding down the 2nd button from the
left side of the thermostat for 3 seconds.
This thermostat also has other maintenance
reminders (Humidity Pad, UV lamp, and IAQ
Cell), that are reset with the same procedure.
Wi-Fi
Frequencey Range
Wi-Fi Module
2.4 GHz ISM radio band
Supporting 802.11 B/G/N Standards