Pro1 Technologies T855 - User Manual

Operation ManualOperation Manual

Summary

Thermostat Operation

LCD Display Overview

Details the thermostat's LCD display read out and its various components.

Glow in the Dark Light Button

Explains the function of the button that illuminates the display.

Fan Button Operation

Describes how to select fan operation modes: ON, AUTO, or IAQ.

System Button Modes

Explains how to select HVAC system modes: HEAT, COOL, OFF, AUTO, EM HEAT.

Temperature Setpoint Buttons

Details how to adjust the desired room temperature using plus and minus buttons.

Button and Battery Door

Refers to page 4 for additional information regarding the button/battery door.

Thermostat Quick Reference

Battery Door Information

Instructions for battery replacement and details on the battery door.

Thermostat Quick Reference Display

LCD Display Element Identification

Identifies and explains the various icons and indicators on the thermostat's LCD screen.

Low Battery Indicator

Explains the icon indicating low battery power and its implications.

Keypad Lockout Indicator

Shows when the thermostat keypad is locked and how to unlock it.

Programming Menu Buttons

Lists the buttons used for navigating and selecting options during programming.

Fan and System Button Functions

Explains the functions of the Fan and System buttons for operation control.

Programming

Set Time and Date

Step-by-step guide to setting the day of the week and current time.

Set Program Schedule (Weekday)

Instructions to customize the 5+1+1 program schedule for weekdays.

Programming Schedule Details

Set Program Schedule (Weekend)

Instructions to customize the 5+1+1 program schedule for Saturday and Sunday.

Customize 7 Day Program Schedule

Guidance on repeating programming steps for all days of the week.

Advanced Programming and Features

Programmable Fan Operation

Explains the programmable fan feature and IAQ mode for air circulation.

Temporary and Permanent Hold

Describes how to set temporary and permanent holds on the thermostat.

Keypad Lockout Procedure

Details how to lock and unlock the thermostat keypad.

Features and Maintenance

Filter Change Reminders

Explains how to view and reset filter change reminders.

Other Maintenance Reminders

Notes other reminders like Humidity Pad, UV lamp, and IAQ Cell.

Warranty Registration Process

Instructions for registering the thermostat to activate the 5-year limited warranty.

Pro1 Technologies T855 Specifications

Operating Environment

display temperature range	41˚F to 95˚F (5˚C to 35˚C)
control temperature range	44˚F to 90˚F (7˚C to 32˚C)
operating ambient temperature	32˚F to +105˚F (0˚C to +41˚C)
operating humidity	90% non-condensing maximum

Power

load rating per terminal	1 amp
maximum load rating all terminals	1.5 amp
power source voltage	18 to 30 VAC
power source frequency	50/60 Hz
battery power type	2 AA Alkaline batteries

Weight and Dimensions

dimensions of thermostat width	4.7”
dimensions of thermostat height	4.3”
dimensions of thermostat depth	0.9”