Pro1 Technologies T855iSH Installation Manual Download Page 2

Getting to know your thermostat

Glow in the dark light button
Setpoint buttons
Program buttons
Menu button
Fan button

LCD Display

System button
Button access door

Thermostat Quick Reference

Getting to know your thermostat

Thermostat Quick Reference

Gently slide a screwdriver into the bottom edge 

of the badge. Gently turn the screwdriver counter 

clockwise.  The badge is held on by a magnet in the 

well of the button door.  The badge should pry off 

easily.  

DO NOT USE FORCE.

About The Badge

All of our thermostats use the same universal magnetic badge.  Visit the 

company website to learn more about our free private label program.

5

6

7

8

Magnet in door

Use the bevel on lower ridge

Day of the Week

Setpoint Indicator:  

Displays the user selectable setpoint temperature.

Energy Efficient Globe:

 Indicates the setpoint temperature chosen is a 

efficient choice. 

Indicates the number of heating or cooling stages running

Keypad Lockout:

 Indicates the thermostat is in keypad lockout

Time of Day / Outdoor Temp / % Humidity

Hold Indicator: 

Displayed when the thermostat is in permanent hold

Indicates current room temperature 

Indicates if heating or cooling equipment is running

WIFI Indicator:

 Indicates if WIFI is connected.

Fan Button:

 Changes the fan operation between Auto, IAQ, 

and On.

System Button:

 Changes the system operation between Off, 

Cool, Auto, Heat, and Emergency Heat based on system tech 

setting.

Program Menu Buttons:

 Shows different options during 

programming.

Thermostat Quick Reference

Thermostat Quick Reference

Summary of Contents for T855iSH

Page 1: ...all 4 Wires should be pushed into the wall Installation Tips The thermostat should be installed approximately 4 to 5 feet above the floor Select an area with average temperature and good air circulati...

Page 2: ...e the bevel on lower ridge Day of theWeek Setpoint Indicator Displays the user selectable setpoint temperature Energy Efficient Globe Indicates the setpoint temperature chosen is a efficient choice In...

Page 3: ...gency heat relay a jumper can be installed between E and W2 to turn thermostat into a single stage control for Emergency Heat Operation 9 10 11 12 Wiring Diagrams Wiring Diagrams Typical2H 2CSystem 1T...

Page 4: ...nd stage will turn on at 2x the swing setting The second stage will turn off when 1x the swing is reached For example if the swing setting is 5 degrees for heating and the thermostat is set at 70 F th...

Page 5: ...pump applications OF DUAL FUEL Use the and buttons to select ON OFF SET STAGES 2H2C PROGRAM 7d 4 TIME PERIODS PRO RECOVERY This setting maximizes efficiency and equipment longevity by increasing the h...

Page 6: ...iods is set to 2C or 4C Use the and buttons to adjust Pre Occupancy Fan Youcanselectthe pre occupancyfanfromOFF 1 2 or3hours If1 2 or3 isselected thefanwillturn onthatmanyhourspriorto thescheduledoccu...

Page 7: ...lect OFF 10 15 20 25 30 35 40 45 50 degrees OFF BALANCE POINT OF Balance point with electric auxiliary will optimize heat pump usage When the outdoor temperature is above the AUX CUT OUT selection the...

Page 8: ...an explanation of these options 1 1 DUM Terminal Onlyshowsif dehumidifyis setto ON DUM TERMINAL HUM Terminal DHM Terminal OPTIONS 1 2 3 4 HUM terminal energizes when the ambient humidity is Below the...

Page 9: ...64 6 65 4 66 4 67 4 68 2 68 2 68 9 69 2 65 3 66 2 67 2 68 2 69 1 69 1 70 70 1 66 67 68 69 70 70 71 71 67 2 68 2 69 1 70 1 71 1 71 4 72 4 72 6 68 3 69 3 70 3 71 3 72 3 72 8 73 8 74 3 69 7 70 7 71 7 72...

Page 10: ...ng 1 Select HEAT or COOL with the SYSTEM key Note You have to program heat and cool each separately 2 Press the MENU button If menu does not appear first press RUN SCHED 3 Press SET SCHED Note Monday...

Page 11: ...F 17 C 70 F 21 C 62 F 17 C 78 F 24 C 85 F 28 C 78 F 24 C 82 F 26 C 78 F 24 C 85 F 28 C 78 F 24 C 82 F 26 C 78 F 24 C 85 F 28 C 78 F 24 C 82 F 26 C Programming Factory Default Program for 2 Time Period...

Page 12: ...g 802 11 B G N Standards 45 46 Specifications Remote Sensor Operation Option 1 Indoor Local Temperature Sensor ON 1 The displayed room temperature will display the average temperature of the thermosta...

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