Pro1 Technologies T855iSH Wall Thermostat Instruction Manual

Pro1 Technologies T855iSH Wall Thermostat

Product Information

The T855iSH Wall Thermostat is a product manufactured by Pro1 Technologies. It is designed to control various HVAC systems, including gas or oil heat, electric furnaces, heat pumps, multi-stage systems, heat-only systems, cool- only systems, and systems with wired remote sensing. The thermostat is compatible with any HVAC system up to 5H/3C with a standard low voltage controlled humidifier or de-humidifier. It also requires hardwire installation with a common wire.

The thermostat features an LCD display with a glow-in-the-dark light button for easy visibility in low-light conditions. It has setpoint buttons, program buttons, a menu button, a fan button, a system button, and a button access door for convenient operation. The product is mercury-free and environmentally friendly. However, if you are replacing a thermostat that contains mercury, it is important to dispose of it properly according to local waste management authority guidelines.

Product Usage Instructions

1. Installation Tips:
   • Select an installation location approximately 4 to 5 feet above the floor with average temperature and good air circulation.
   • Ensure the location is easy for the user to access.
   • Mount the subbase of the thermostat securely to a flat wall using the screws provided.
   • If required, use drywall anchors that are flush with the wall.
   • Push the wires into the wall for a neat installation.
   • Make sure to disconnect the power before starting the installation to avoid electrical shock or equipment damage.
   • A trained and experienced technician should handle the installation process.
2. Thermostat Quick Reference:
   • Familiarize yourself with the thermostat components, including the LCD display, glow-in-the-dark light button, setpoint buttons, program buttons, menu buttons, fan buttons, system buttons, and button access doors.
3. About The Badge:
   • All Pro1 thermostats use the same universal magnetic badge.
   • Visit the company website to learn more about their free private label program.

Thermostat Application Guide

Description|
---|---
Gas or Oil Heat| Yes
Electric Furnace| Yes
Heat Pump (No Aux. or Emergency Heat)| Yes
Heat Pump (With Aux. or Emergency Heat)| Yes
Multi-Stage Systems| Yes
Heat Only Systems| Yes
Cool Only Systems| Yes
Millivolt| No
Wired Remote Sensing| Yes
Any HVAC system up to 5H/3C with standard low voltage controlled humidifier.| Yes
Any HVAC system up to 5H/3C with standard low voltage controlled de- humidifier.| Yes

Power Type
Hardwire (Common Wire)

A trained, experienced technician must install this product.
Carefully read these instructions. You could damage this product or cause a hazardous condition if you fail to follow these instructions.

Installation Tips

Wall Locations
The thermostat should be installed approximately 4 to 5 feet above the floor. Select an area with average temperature and good air circulation.

Do not install thermostat in these locations:

• Close to hot or cold air ducts
• That are in direct sunlight
• With an outside wall behind the thermostat
• In areas that do not require conditioning
• Where there are dead spots or drafts (in corners or behind doors)
• Where there might be concealed chimneys or pipes

Installation Tip
Pick an installation location that is easy for the user to access. The temperature of the location should be representative of the building.

Subbase Installation

1. Horizontal Mount For horizontal mount put one screw on the left and one screw on the right.
2. Vertical Mount For vertical mount put one screw on the top and one screw on the bottom.

Installation Tip: Electrical Hazard
Failure to disconnect the power before beginning to install this product can cause electrical shock or equipment damage.

Mercury Notice
All of our products are mercury free. However, if the product you are replacing contains mercury, dispose of it properly. Your local waste management authority can give you instructions on recycling and proper disposal.

Mount Thermostat

Align the 4 tabs on the subbase with corresponding slots on the back of the thermostat, then push gently until the thermostat snaps in place.

Note: To ensure a solid fit between the thermostat and the subbase:

1. Mount subbase to a flat wall
2. Use screws provided
3. Drywall anchors should be flush with the wall
4. Wires should be pushed into the wall

Thermostat Quick Reference

Getting to know your thermostat

1. Day of the Week
2. Setpoint Indicator: Displays the user-selectable setpoint temperature.
3. Time of Day/Outdoor Temp/% Humidity
4. Indicates current room temperature
5. Indicates if heating or cooling equipment is running
6. Energy Efficient Globe: Indicates the setpoint temperature chosen is an efficient choice.
7. Hold Indicator: Displayed when the thermostat is in permanent hold
8. Indicates the number of heating or cooling stages running
9. Keypad Lockout: Indicates the thermostat is in keypad lockout
10. WIFI Indicator: Indicates if WIFI is connected.
11. Program Menu Buttons: Shows different options during programming.
12. Fan Button: Changes the fan operation between Auto, IAQ, and On.
13. System Button: Changes the system operation between Off, Cool, Auto, Heat, and Emergency Heat based on system tech setting.

• 1. LCD Display
• 2. Glow in the dark light button
• 3. Setpoint buttons
• 4-6. Program buttons
• 5. Menu button
• 6. Fan button
• 7. System button
• 8. Button access door

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.

Gently slide a screwdriver into the bottom edge of the badge. Gently turn the screwdriver counterclockwise. 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.

Wiring

Caution: Electrical Hazard
Failure to disconnect the power before beginning to install this product can cause electrical shock or equipment damage.

Warning:
All components of the control system and the thermostat installation must conform to Class II circuits per the NEC Code.

Wiring

1. If you are replacing a thermostat, make note of the terminal connections on the thermostat that is being replaced. In some cases, the wiring connections will not be color-coded. For example, the green wire may not be connected to the G terminal.
2. Loosen the terminal block screws. Insert wires then retighten the terminal block screws.
3. Place non-flammable insulation into the wall opening to prevent drafts.

Installation Tip
Do not overtighten terminal block screws, as this can damage the terminal block. A damaged terminal block can keep the thermostat from fitting on the subbase correctly or cause system operation issues.

• Max Torque = 6in-lbs.

Wiring Tips

C Terminal
This thermostat requires a 24V common wire to the C terminal.

Wire Specifications
Use shielded or non-shielded 18-22 gauge thermostat wire.

Note:
In many heat pump systems with no emergency heat relay, a jumper can be installed between E and W2 to turn the thermostat into a single-stage control for Emergency Heat Operation.

Note:
Outdoor temperature sensor, Indoor temperature sensors, and Slab sensor wiring diagrams are located in the R250S and R251S manuals.

Terminal Designations

This thermostat is shipped from the factory to operate a conventional heating and cooling system. This thermostat may also be configured for a heat pump system. See the “heat pump” configuration step on page 16 of this manual to configure the thermostat for heat pump applications.

Terminal

| 2 Heat 2 Cool Conventional System| 2 Heat 1 Cool Heat Pump System| 4 Heat 2 Cool Heat Pump System| 5 Heat 3 Cool Heat Pump System
---|---|---|---|---
RC| Transformer power (cooling)| Transformer power (cooling)| Transformer power (cooling)| Transformer power (cooling)
RH| Transformer power (heating)| Transformer power (heating)| Transformer power (heating)| Transformer power (heating)
C| Transformer common| Transformer common| Transformer common| Transformer common
B| Reversing valve

/ configurable terminal

| Reversing valve

/ configurable terminal

| Reversing valve

/ configurable terminal

| Reversing valve / 3rd stage of heat & cool
O| Reversing valve

/ configurable terminal

| Reversing valve

/ configurable terminal

| Reversing valve

/ configurable terminal

| Reversing valve / 3rd stage of heat & cool
G| Fan relay| Fan relay| Fan relay| Fan relay
W/E| First stage of heat| Emergency Heat| First stage of auxiliary heat| First stage of

auxiliary heat (4th stage of heat)

Y| First stage of cool| First stage of heat & cool| First stage of heat & cool| First stage of heat & cool
Y2| Second stage of cool| N/A| Second stage of heat & cool| Second stage of heat & cool
W2| Second stage of heat| Auxiliary heat| Second stage of auxiliary heat| Second stage of auxiliary heat

(5th stage of heat)

S1/S2| Remote Sensor| Remote Sensor| Remote Sensor| Remote Sensor
H| Humidify| Humidify| Humidify| Humidify
D| Dehumidify| Dehumidify| Dehumidify| Dehumidify

Wiring Diagrams

1. Power supply

2. Factory-installed jumper. Remove only when installing on 2-transformer systems
   Typical 2H/2C System: 1 Transformer
   Typical Cool-Only System With Fan Typical Heat-Only System With Fan
   

3. Use either O or B terminals for the changeover valve

4. A 24 VAC common connection is required with this thermostat.

5. If the DEHUM relay requires a normally energized input, set the Dehumidify relay to NC in Technician Setup.

Typical 2H/2C System: 2 Transformer

Typical 2H/1C Heat Pump System

Note:
In many systems with no emergency heat relay a jumper can be installed between E and W2.

1. Power supply

2. Factory-installed jumper. Remove only when installing on 2 transformer systems.

3. Use either O or B terminals for the changeover valve.
   Typical 2H/2C system with 24 VAC Humidifier
   Typical 2H/2C system with Dehumidify Terminal

4. A 24 VAC common connection is required with this thermostat.

5. If DEHUM relay requires a normally-energized input, set Dehumidify relay to NC in Technician Setup.

Typical 2H/2C system with Dry Contact Humidifier

Typical 5H/3C Heat Pump System

Technician Setup Menu

This thermostat has a technician setup menu for easy installer configuration. To set up the thermostat for your particular application:

1. Press the MENU button.

2. Press and hold the TECH SET button for 3 seconds. This 3-second delay is designed so that homeowners do not accidentally access the installer settings.

3. Configure the installer options as desired using the table below. Use the or keys to change settings and the NEXT or PREV key to move from one step to another.
   Note: Only press the DONE key when you want to exit the Technician Setup options.

4. Press the DONE key to exit.

Swing Setting Tip
The second 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, the first stage will turn on at approximately 69.5˚F. The second stage will turn on at 69˚F. The second stage will turn off at 69.5˚F and the first will turn off at 70.5˚F. If the third stage is used, it will turn on at 68.5˚F and turn off at approximately 69˚F.

System Mode

• PTAC (conventional)
• PTAC (Heat Pump)
• Heat Pump
• Conventional

Keypad Lockout Note:
The selected keypad lockout functionality must be activated after exiting the tech setup. If you do not perform this procedure, all keys will function freely. To lock the keypad hold down the and keys for 3 seconds. You will see a lock in the display. To unlock the display hold down the and keys for 3 seconds.

Contractor Call Number Note
If the contractor call number is selected ON, the phone number entered will show in the display if there has been a continuous call for heating or cooling for 24 hours or if the light button is held down for 3 seconds. To remove the phone number from the display, hold the light button down for 3 seconds.

A Note about IAQ Mode
This programmable/selectable mode will operate the fan for 1-4 cycles per hour, 1-45 minutes per cycle. Once programmed in tech setup, to enable this mode select “IAQ” with the fan key. Disable this mode by selecting “ON” or “AUTO” with the fan key.

S1/S2 Terminal

This table references different humidity levels the thermostat will conform to, based on the outdoor temperature measurements. When the Automatic Humidity Adjusting tech setting selection is ON1 or ON2, the thermostat humidity will stay adjusted to the humidity level that corresponds to the outdoor temperature based on the chart index below.

Automatic Humidity Adjusting Index

When The Outdoor Temperature Is:| On 1| On 2
---|---|---
> +40˚F| 45%| 50%
+30˚F to 40˚F| 40%| 45%
+20˚F to 29˚F| 35%| 40%
+10˚F to 19˚F| 30%| 35%
0˚F to 9˚F| 25%| 30%
-1˚F to -10˚F| 20%| 25%
-11˚F to -20˚F| 15%| 20%
< -20| 10%| 15%

HUM Terminal

for humidity.
4| Below the humidity setpoint.

DHM Terminal

for dehumidity.
3| Above the humidity setpoint.
4| Above the humidity setpoint and the compressor is not running.

WIFI Technician Setup Menu

These steps/options are only used for troubleshooting, re-setting or restoring to default the WIFI settings of the thermostat. They are not needed for installation or initial setup.

1. Press the MENU button.
2. Press the WIFI button.
3. Configure the WIFI options as desired using the table below. Use the + or – keys to change settings and the NEXT or PREV key to move from one step to another.

Note: Only press the DONE key when you want to exit the WIFI Menu.

Setting the Humidity

Comfort Temperature Index

Temperature

50

| 20%- 25%

50

| 26%- 35%

50

| 36%- 45%

50

| 46%- 55%

50

| 56%- 65%

50

| 66%- 75%

50

| 76%- 85%

50

| 86%- 90%

50

---|---|---|---|---|---|---|---|---
51| 50.6| 50.7| 50.7| 50.9| 51| 51| 51| 51.2
52| 51.2| 51.5| 51.5| 51.7| 52| 52| 52| 52.5
53| 52.3| 52.5| 52.5| 52.8| 53| 53| 53| 53.5
54| 52.9| 53.3| 53.3| 53.6| 54| 54| 54| 54.8
55| 53.5| 54| 54| 54.5| 55| 55| 55| 56
56| 54.1| 54.6| 54.7| 55.3| 56| 56| 56| 57
57| 54.7| 55.2| 55.4| 56.2| 56.9| 56.9| 56.9| 57.9
58| 55.8| 56.3| 56.6| 57.3| 58.1| 58.1| 58.1| 59.1
59| 56.4| 56.9| 57.3| 58.2| 59| 59| 59| 60
60| 57| 57.5| 58| 59| 60| 60| 60| 61
61| 58| 58.5| 59.1| 60.1| 60.9| 60.9| 61.1| 61.9
62| 58.9| 59.4| 60.1| 61.1| 61.9| 61.9| 62.1| 62.9
63| 60.1| 60.6| 61.4| 62.4| 63.1| 63.1| 63.4| 64.1
64| 61| 61.6| 62.4| 63.4| 64.1| 64.1| 64.4| 65.1
65| 62| 62.5| 63.5| 64.5| 65| 65| 65.5| 66
66| 62.7| 63.3| 64.3| 65.3| 65.9| 65.9| 66.5| 66.9
67| 63.4| 64.1| 65.1| 66.1| 66.8| 66.8| 67.6| 67.8
68| 64.6| 65.4| 66.4| 67.4| 68.2| 68.2| 68.9| 69.2
69| 65.3| 66.2| 67.2| 68.2| 69.1| 69.1| 70| 70.1
70| 66| 67| 68| 69| 70| 70| 71| 71
71| 67.2| 68.2| 69.1| 70.1| 71.1| 71.4| 72.4| 72.6
72| 68.3| 69.3| 70.3| 71.3| 72.3| 72.8| 73.8| 74.3
73| 69.7| 70.7| 71.7| 72.7| 73.7| 74.2| 75.2| 75.8
74| 70.8| 71.9| 72.9| 73.9| 74.9| 75.6| 76.6| 77.4
75| 72| 73| 74| 75| 76| 77| 78| 79
76| 72.9| 73.9| 74.9| 76.1| 77.1| 78.6| 79.6| 80.6
77| 73.8| 74.7| 75.7| 77.2| 78.2| 80.2| 81.2| 82.7
78| 75.2| 76.3| 77.3| 78.8| 79.8| 81.8| 82.8| 84.3
79| 76.1| 77.1| 78.1| 79.9| 80.9| 83.4| 84.4| 86.2
80| 77| 78| 79| 81| 82| 85| 86| 88
81| 77.9| 79.1| 80.3| 82.3| 83.6| 86.6| 88.3| 91
82| 78.7| 80.2| 81.7| 83.7| 85.1| 88.1| 90.6| 94.1
83| 80.3| 81.8| 83.3| 85.3| 86.9| 89.9| 92.4| 96
84| 81.1| 82.9| 84.7| 86.7| 88.4| 91.4| 94.7| 99
85| 82| 84| 86| 88| 90| 93| 97| 102
86| 82.8| 85.1| 87.3| 89.5| 92| 95.8| 100.5| 106.4
87| 83.7| 86.1| 88.6| 91.1| 94.1| 98.5| 104| 110.9
88| 85.3| 87.9| 90.4| 92.9| 96| 100.5| 106.1| 113.1
89| 86.2| 88.9| 91.7| 94.5| 98| 103.2| 109.5| 117.6
90| 87| 90| 93| 96| 100| 106| 113| 122

Setting Target Humidity Setpoint
Follow the steps below to change your target humidity setpoint.

Press the HUMIDITY key

• Use the or key to select the target humidity setpoint.
• Press DONE when completed.

Note:

• The target humidity setpoint is not programmable. Unlike temperature, humidity does not change quickly and should not be programmed.
• Humidity is only energized during heat. Dehumidify is only energized during cool. Heat and Cool each have their own target setpoints.

Setting Target Humidity Setpoint

• Ambient humidity will flash in the time field when Humidify or De-Humidify is set to ON.
• HON will also flash when the Humidity terminal is energized. dON will also flash when the De-Humidify terminal is energized.

Recommended Heating Settings:

Increasing Humidity
The table below shows recommended indoor humidity levels in relation to outdoor temperatures during heating (adding humidity).

Recommended Cooling Settings:
Consult your professional HVAC technician for recommended settings for your climate.

Programming

Set Time
Follow the steps below to set the day of the week and current time:

1. Press the MENU button.
2. Press SET TIME.
3. Day of the week is flashing. Use the or key to select the current day of the week.
4. Press NEXT.
5. The current hour is flashing. Use the or key to select the current hour. When using 12-hour time, make sure the correct a.m. or p.m. choice is selected.
6. Press NEXT.
7. Minutes are now flashing. Use the or key to select current minutes.
8. Press DONE when completed.

Programming

• All our programmable thermostats are shipped with an energy saving default program. You can customize this default program by following the instructions in the set program schedule section starting on page 24.
• Your thermostat can be programmed to have each day of the week programmed uniquely (7 days) or non-programmable. For the 7-day programming modes, there are three time period options.

1. “4” Residential (WAKE, LEAVE, RETURN, SLEEP)
2. “2C” Commercial (OCCUPIED, UNOCCUPIED)
3. “4C” Commercial (OCCUPIED 1, UNOCCUPIED 1, OCCUPIED 2, UNOCCUPIED 2)

This thermostat has a programmable fan feature, which allows you to run the fan continually during any time period.

Reminders
Once a reminder has been turned on and set, the elapsed time can be checked by navigating to its tech setup step. The elapsed time will then appear in the text field. It can also be reset at that time by holding down the set time/run sched button for 3 seconds. Resetting an expired reminder can be done without entering tech setup, by holding down the set time/run sched button for 3 seconds from the home screen.

Staging Delay Note:
This step will not appear if using an outdoor balance point temperature.

Custom Program

Day of the Week| Events| Time| Setpoint Temperature (HEAT)| Setpoint Temperature (COOL)
---|---|---|---|---

Weekday

| Wake/OCC1|  |
Leave/UNOCC1|  |
Return/OCC2|  |
Sleep/UNOCC2|  |
Occupied|  |
Unoccupied|  |

Saturday

| Wake/OCC1|  |
Leave/UNOCC1|  |
Return/OCC2|  |
Sleep/UNOCC2|  |
Occupied|  |
Unoccupied|  |

Sunday

| Wake/OCC1|  |
LeaveUNOCC1|  |
Return/OCC2|  |
Sleep/UNOCC2|  |
Occupied|  |
Unoccupied|  |

To customize your 7 day 4 time period Program schedule, follow these steps:

Monday:

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 is displayed and the WAKE/OCC1 icon is shown. You are now programming the WAKE/OCC1 time period for that day.

4. Time is flashing. Use the or key to make your time selection for that day’s WAKE/OCC1 time period.
   Note: If you want the fan to run continuously during this time period, select ON with the FAN key. If you want to use IAQ mode during this time period, select IAQ with the FAN key.

5. Press NEXT.

6. The setpoint temperature is flashing. Use the or key to make your setpoint selection for that day’s WAKE/OCC1 period.

7. Press NEXT.

8. Repeat steps 4 through 7 for that day’s LEAVE/UNOCC1 time period, for that day’s RETURN/OCC2 time period, and for that day’s SLEEP/UNOCC2 time period.

Repeat steps 4 through 8 for the remaining days of the week.

A Note About Auto Changeover:
In Auto you have the ability to switch between Auto Heat or Auto Cool by pressing the system key. This can be done once the current mode has reached its setpoint. For example: if in Auto Heat, the heat setpoint must be satisfied before the thermostat will allow you to switch to Auto Cool. You can switch out of Auto by holding down the system key. To get back into Auto, you must toggle the system key to Auto.

To customize your 7 day 2 time period program schedule, follow these steps:

Monday:

1. Select HEAT or COOL with the SYSTEM key.
   Note: You have to program heat and cool each seperately.

2. Press the MENU button (If menu does not appear first press RUN SCHED).

3. Press SET SCHED. Note: Monday is displayed and the OCCUPIED text is shown. You are now programming the OCCUPIED time period for that day.

4. Time is flashing. Use the or key to make your time selection for that day’s OCCUPIED time period.
   Note: If you want the fan to run continuously during this time period, select ON with the FAN key. If you want to use IAQ mode during this time period, select IAQ with the fan key.

5. Press NEXT.

6. The setpoint temperature is flashing. Use the or key to make your setpoint selection for that day’s OCCUPIED period.

7. Press NEXT.

8. Repeat steps 4 through 7 for that day’s UNOCCUPIED time period.

Repeat steps 4 through 8 for the remaining days of the week.

A Note About Programmable Fan:
The programmable fan feature will run the fan continuously during any time period it is programmed to be on. This is the best way to keep the air circulated and to eliminate hot and cold spots in your building. If using IAQ mode, set fan to IAQ for any time period.

Default Programming

Factory Default Program

Day of the Week| Events| Time| Setpoint Temperature (HEAT)| Setpoint Temperature (COOL)
---|---|---|---|---

Weekday

| Wake/OCC1| 6 AM| 70˚F (21˚C)| 78˚F (24˚C)
Leave/UNOCC1| 8 AM| 62˚F (17˚C)| 85˚F (28˚C)
Return/OCC2| 6 PM| 70˚F (21˚C)| 78˚F (24˚C)
Sleep/UNOCC2| 10 PM| 62˚F (17˚C)| 82˚F (26˚C)

Saturday

| Wake/OCC1| 6 AM| 70˚F (21˚C)| 78˚F (24˚C)
Leave/UNOCC1| 8 AM| 62˚F (17˚C)| 85˚F (28˚C)
Return/OCC2| 6 PM| 70˚F (21˚C)| 78˚F (24˚C)
Sleep/UNOCC2| 10 PM| 62˚F (17˚C)| 82˚F (26˚C)

Sunday

| Wake/OCC1| 6 AM| 70˚F (21˚C)| 78˚F (24˚C)
LeaveUNOCC1| 8 AM| 62˚F (17˚C)| 85˚F (28˚C)
Return/OCC2| 6 PM| 70˚F (21˚C)| 78˚F (24˚C)
Sleep/UNOCC2| 10 PM| 62˚F (17˚C)| 82˚F (26˚C)

Default Programming

Factory Default Program for 2 Time Periods

Day of the Week| Events| Time| Setpoint Temperature (HEAT)| Setpoint Temperature (COOL)
---|---|---|---|---

Weekday

| OCCUPIED| 8 AM| 70˚F (21˚C)| 78˚F (26˚C)
UNOCCUPIED| 6 PM| 62˚F (17˚C)| 85˚F (29˚C)

Saturday

| OCCUPIED| 8 AM| 70˚F (21˚C)| 78˚F (26˚C)
UNOCCUPIED| 6 PM| 62˚F (17˚C)| 85˚F (29˚C)

Sunday

| OCCUPIED| 8 AM| 70˚F (21˚C)| 78˚F (26˚C)
UNOCCUPIED| 6 PM| 62˚F (17˚C)| 85˚F (29˚C)

You can use the table on the next page to plan your customized program schedule if using 5+1+1.

Features

Filter Change & Other Reminders

If the filter change reminder is enabled, you will see a reminder in the display when your air filter needs changed. The reminder 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 the reminder is displayed, you should change your air filter and reset the reminder by holding down the 3rd 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.

Temporary & Permanent Hold Feature

Temporary Hold:
The thermostat will display HOLD and RUN SCHED on the bottom of the screen when you press the or key. If you do nothing, the temperature will remain at this setpoint temporarily for 4 hours. The program setpoint will then replace the temporary setpoint.

Permanent Hold:
With a temporary hold set, If you press the 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 SCHED key at the bottom of the screen to exit temporary and permanent holds.

Remote Sensor Operation

Remote Sensor Operation Options

Option #1 – Indoor / Local Temperature Sensor “ON”:

1. The displayed room temperature will display the average temperature of the thermostat and all remote sensors.
2. By pressing the far left (Prev Step) button, the average temperature of just the remote sensor(s) will be displayed briefly in the clock field.

Option #1 – Indoor / Local Temperature Sensor OFF”:

1. The displayed room temperature will only show the average temperature of the remote sensor(s).

Option #2 – Outdoor:

1. The outdoor temperature will alternate briefly with the clock display.

Option #3 (Floor)

1. By pressing the far left (Prev. Step) button, the temperature of the floor sensor will be displayed briefly in the clock field.

Specifications

• The display range of temperature … 41˚F to 95˚F (5˚C to 35˚C)
• The control range of temperature…. 44˚F to 90˚F (7˚C to 32˚C)
• Load Rating……………………………………….. 1 amp per terminal, 1.5 amp maximum all terminals combined
• Swing (cycle rate or differential) ……
  • Heating is adjustable from 0.2˚ to 2.0˚
  • Cooling is adjustable from 0.2˚ to 2.0˚
• Power source …………………………………….18 to 30 VAC, NEC Class II, 50/60 Hz for hardwire. 500 mA
• Operating ambient …………………………. 32˚F to +105˚F (0˚C to +41˚C)
• Operating humidity ………………………… 90% non-condensing maximum
• Dimensions of thermostat …………….. 4.7” W x 4.3” H x 0.9” D
• Frequency Range……………………………… 2.4 GHz ISM radio band
• WIFI…………………………………………………….. Supporting 802.11 B/G/N Standards

Pro1 Technologies

• P.O. Box 3377 Springfield, MO 65808-3377
• Toll Free: 888-776-1427
• Web: www.pro1iaq.com.
• Hours of Operation: M-F 9AM – 6PM Eastern

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References

• Pro1 IAQ Thermostats - Non Programmable | Programmable | Wireless

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