EMERSON 1F83C-11PR Conventional Programmable Thermostat Instructions

: June 6, 2024
: Emerson

EMERSON 1F83C-11PR Conventional Programmable Thermostat

Thermostat Applications

| Maximum Stages Heat/Cool
---|---
Conventional Gas, Oil, Electric (mV and 24V), Heat Only, Cool Only or Heat/ Cool Systems|

1/1

Heat Pump (air source or geothermal) with no Aux. Heat| 1/1

MERCURY NOTICE: This product does not contain mercury. However, this product may replace a product that contains mercury. Mercury and products containing mercury must not be discarded in household trash. Refer to www .thermostat-recycle.org for information on disposing of products containing mercury.

SPECIFICATIONS

Electrical Rating:
Battery Power ………………………………. mV to 30 VAC, NEC Class II, 50/60 Hz
Input-Hardwire……………………………… 20 to 30 VAC, NEC Class II, 50/60 Hz
Terminal Load…………………………………… 1.0 A per terminal, 1.5A maximum all terminals combined
Setpoint Range …………………………………. 45° to 99° F (7° to 37° C)
Rated Differentials: Fast Med Slow
Heat (@ 6°F/ Hr)……………………………. 0.5°F 0.75°F 1.9°F
Cool (@ 6°F/ Hr)……………………………. 0.9°F 1.2°F 1.7°F
Operating Ambient……………………………. 32°F to +105°F (0° to +41°C)
Display Temperature Range ………………….. 32°F to +99°F (0 to 37°C)
Operating Humidity …………………………… 90% non-condensing max
Shipping Temperature Range………………. -20°F to + 150°F (-29° to +65°C)
Thermostat Dimensions……………………… 3-3/4” H x 6” W x 1-1/8” D

THERMOSTAT INSTALLATION

WIRING

Refer to equipment manufacturer’s instructions for specific system wiring information. After wiring, see INSTALLER MENU for proper thermostat configuration. Wiring table shown are for typical systems and describe the thermostat terminal functions.

Terminal Designations

|

Terminal Function

---|---

RC*

| Power for Cooling

RH*

| Power for Heating

O/B

| Changeover Terminal-Energized in Heat (B) or Cool (O) for Heat Pump or Damper Systems

Y**

| Cooling Relay

G

| Fan Relay

W**

| Heating Relay

C

| Common wire for 24V (optional with batteries)

*When both RC and RH wires are present, cut RC/RH jumper (see next page).
**For heat pump systems, add a jumper wire to connect terminals Y and W

Precautions

Do not exceed the specification ratings.
All wiring must conform to local and national electrical codes and ordinances.
This control is a precision instrument, and should be handled carefully. Rough handing or distorting components could cause the control to malfunction.

Do not use on circuits exceeding specified voltage. Higher voltage will damage control and could cause shock or fire hazard.
Do not short out terminals on gas valve or primary control to test. Short or incorrect wiring will burn out thermostat and could cause personal injury and/or property damage

To prevent electrical shock and/or equipment damage, disconnect electrical power to system, at main fuse or circuit breaker box,until installation is complete.

Gas/Elec Switch
If the system is a heat pump or electric furnace, the GAS/ELEC Switch must be set to Elec. If your system is a gas or oil furnace, the switch must be set to Gas.
O/B Terminal Switch
The O/B switch on this thermostat is factory set to the O position. This will accommodate the majority of heat pump applications, which require the changeover relay to be energized in Cool. If the heat pump being installed requires a B terminal, to energize the changeover relay in Heat, the O/B switch must be moved to the B position.
RC/RH Jumper Wire
This thermostat electrically connects the RC and RH terminals so a jumper wire is not required. If the application provides a separate wire for RC and RH, clip the RC/RH jumper. This will isolate both terminals so they can be independently used.

To prevent changes that may affect system performance, this thermostat has an INSTALLER’S MENU and an USER MENU. The INSTALLER’S MENU provides access to every option, while the USER MENU provides access to items that will not affect system performance. To access the INSTALLER’S MENU press the Menu button for 8 seconds. The display will show item 30 in the table below. Use Next and Back to navigate through menu items. Press ▲ or ▼ to change a menu setting.

**Installer’s Menu

| Description| Default Setting
(flashing icons)|

Settings
(Press ▲ or ▼)

---|---|---|---
| Heat Cycle Rate (how often the heat will turn on)|

MEd

| SLO – slow
MEd – medium
FAS – fast
| Cool Cycle Rate (how often the cooling will turn on)|

MEd

| SLO – slow
MEd – medium
FAS – fast
| Compressor Lockout (protects the compressor from short cycling)|

OFF

| On – 5 minute display

OFF – no delay

| Maximum Heat Limit
(maximum set point for heat mode)|

99

| 47 to 99
| Minimum Cool Limit
(minimum set point for cool mode)|

45

| 45 to 97
| Schedule Type (set as either 7-Day, 5-1-1 Day or Non-Programmable)|

5

| 7 – 7 Day
5 – 5-1-1 Day
0 – Non Programmable
| Early Start (starts heating or cooling early so your programmed temperature is reached by the programmed time)|

OFF

| On – start early
OFF – start at program period time
| Fahrenheit or Celsius|

°F

| °F – Fahrenheit
°C – Celsius
| Temperature Display Adjustment (adjust the displayed “Room Temperature”)|

0

|

-5 to +5

| Continuous Display Light (keep the backlight always on – “C” wire required)|

OFF

|

On – always on
OFF – momentarily

| Change Air Filter (set up a monthly reminder)|

OFF

| 1 to 12 – reminder time (months)
OFF – no filter reminder
| Keypad Lock (prevent unwanted changes to the thermostat)|

OFF

| On – disable buttons
OFF – all buttons are active

TEST EQUIPMENT

Turn on power to the system.

Fan Operation

If your system does not have a G terminal connection, skip to Heating System.

Move fan switch to On position. The blower should begin to operate.
Move fan switch to Auto position. The blower should stop immediately.

Heating System

Move System Switch to Heat position.
Press ▲ to adjust thermostat setting to 1° above room temperature. The system should begin to operate and the thermostat will indicate Heat On.
Press ▼ to adjust thermostat setting 1° below room temperature. The heating system should stop operating and the thermostat should indicate Heat.

Cooling System

Move System Switch to Cool position.
Press ▼ to adjust thermostat setting 1° below room temperature. The blower should come on immediately on high speed, followed by cold air circulation. The thermostat will indicate Cool On. There can be up to a 5 minute delay. (see INSTALLER MENU, item 50)
Press ▲ to adjust thermostat setting to 1° above room temperature. The cooling system should stop operating and the thermostat will indicate Cool.

Note: If Starting Soon is shown on the display, the compressor lockout feature is operating.
There will be up to a 5 minute delay before the compressor turns on.(see INSTALLER MENU, item 50)

To prevent compressor and/or property damage, if the outdoor temperature is below 50°F, DO NOT operate the cooling system.
Do not allow the compressor to run unless the compressor oil heaters have been operational for 6 hours and the system has not been operational for at least 5 minutes.

USING THE THERMOSTAT

THERMOSTAT OVERVIEW

Before you begin using your thermostat, you should be familiar with its features, display and the location/operation of the thermostat buttons and switches.

THERMOSTAT BUTTONS AND SWITCHES	THE DISPLAY
1.) Fan Switch	10.) Thermostat is protecting the equipment from short cycling

(5-minute delay)
2.) System Switch| 11.) Indicates that the system is running in cool or heat
3.) Backlight Button (located on the top of the thermostat| 12.) Displays the current time
4.) Set Correct Time| 13.) Battery status indicator
5.) Hold a Permanent Temperature| 14.) Low battery indicator
6.) Cancels Hold – Returns to Programmed Schedule| 15.) Day of the week used when programming a schedule
7.) Raises Temperature Setting| 16.) Permanent hold (bypassing the schedule)
8.) Access Menu Options| 17.) Temperature setpoint
9.) Lowers Temperature Setting| 18.) Appears when the keypad is locked (to prevent unwanted changes)
| 19.) Next (Menu button) is used to navigate within a menu
| 20.) Access the schedule and customize thermostat features
| 21.) Back (Run button) is used to navigate within a menu
| 22.) Exit (Hold button) returns to the home screen
| 23.) SEE TROUBLESHOOTING

EMERSON-1F83C-11PR-Conventional-Programmable-Thermostat-
Overview

Whenever “ ” appears in the display, new premium brand AA alkaline batteries should be installed. If the house will be unoccupied for an extended period and either “ ” or “ ” is displayed, install new batteries before leaving.

To customize thermostat settings, press and hold the Menu button for ½ second from the home screen. Use the ▲ or ▼ buttons to highlight Settings and press Next. Use Next and Back to navigate through menu items. Press ▲ or ▼ to change the setting.

User’s Menu # (Press Menu button and release)

| Description| Default Setting (flashing icons)|

Settings
(Press ▲ or )

---|---|---|---
01| Schedule Type (set as either 7-Day, 5-1-1 Day or Non Programmable)|

5

| 7 – 7 Day
5 – 5-1-1 Day
0 – Non-programmable
02| Early Start (starts heating or cooling early so your programmed temperature is reached by the programmed time)|

OFF

| On – start early
OFF – start at program period time
03| Continuous Display Light (keep the backlight always on – “C” wire required)|

OFF

| On – always on
OFF – momentarily
04| Change Air Filter (set up a monthly reminder)|

OFF

| 1 to 12 – reminder time (months)
OFF – no filter reminder

THERMOSTAT OPERATION

Set Current Time and Day
Note: Time icons will flash at initial power up or after a reset.

Press Set Time
Use ▲ or ▼ to adjust the hour
Press Next to advance to set the minutes and day of the week
Press Exit when finished.
The default program is 5-1-1 Day, but can be setup as a 7-Day or Non- Programmable thermostat (refer to the User Menu above)

Hold Temperature (bypassing the schedule) – With the System switch set to Heat or Cool, momentarily press the Hold button. Hold will be displayed. Use ▲ or ▼ to adjust the temperature. The thermostat will hold the room temperature at the selected setting until you press Run to start program operation again.
Program Override (Temporary Hold) – Press ▲ or ▼ until the desired temperature is displayed. The thermostat will override the schedule until the next programmed time period with a minimum override of 2 hours. Then the thermostat will automatically revert to the program.
Keypad Lockout – To prevent unwanted changes, the buttons can be disabled. To turn this feature On, press and hold ▲ and the Menu button until the icon appears. To turn Off, press and hold ▲ and the Menu button for 3 seconds.

THERMOSTAT SCHEDULE / PROGRAMMING

For tips on programming your thermostat to receive optimal comfort, convenience and energy savings go to: thermostathelper.com

Energy Saving Factory Schedule

This thermostat is programmed with the energy saving settings shown in the table below for all days of the week.

|

P 1 /Wake

| P 2 /Leave| P 3 /Return|

P 4 /Sleep

---|---|---|---|---

Heating Schedule

| 6:00 AM – 70°F| 8:00 AM – 62°F| 5:00 PM – 70°F| 10:00 PM – 62°F
Cooling Schedule| 6:00 AM – 78°F| 8:00 AM – 85°F| 5:00 PM – 78°F|

10:00 PM – 82°F

Note: Thermostat can be programmed on or off the subbase

Modify the Heating Schedule

Slide the system switch to Heat
Press Menu
Press Next to enter the schedule
The time icons will flash – use ▲ or ▼ to set the time for the start of a period
Press Next – the set point icons will flash – use ▲ or ▼ to set the temperature for the current period
Continue to press Next to advance through all periods (P1/Wake, P2/Leave, P3/Return, P4/Sleep) for all days of the week.

Note: Press Back to return to the previous setting. Once all days of the week have been programmed the thermostat will display End. Press Exit at any time to save changes and return to home screen.

Modify the Cooling Schedule

Slide the system switch to Cool
Repeat steps 2-6 from the heating schedule

TROUBLESHOOTING

Symptom	Possible Cause	Corrective Action
No Heat/ No Cool/ No Fan (common problem)

Blown fuse or tripped circuit breaker
Furnace power switch to OFF
Furnace blower compartment door panel loose or not properly installed
Loose connection to thermostat or system

|

Replace fuse or reset breaker
Turn switch to ON
Replace door panel in proper position to engage safety interlock or door switch
Tighten Connections

No Heat|

System Switch not set to Heat
Loose connection to thermostat or system
Heating System requires service or thermostat requires replacement

| Verify thermostat and system wires are securely attached.
Diagnostic: Set System Switch to Heat and raise the setpoint above room temperature. Within five minutes the thermostat should make a soft click sound and “Heat On” should appear on display. This sound indicates the thermostat is operating properly. If the thermostat does not click, try the reset operation listed below. If the thermostat does not click after being reset, contact your heating and cooling service person or place of purchase for a replacement. If the thermostat clicks, contact the furnace manufacturer or a service person to verify the heating system is operating correctly.
No Cool|

System Switch not set to Cool
Loose connection to thermostat or system
Cooling System requires service or thermostat requires replacement

| Verify thermostat and system wires are securely attached.
Diagnostic: Set System Switch to Cool and lower setpoint below room temperature. Same procedures as diagnostic for “No Heat” condition except set the thermostat to Cool and lower the setpoint below the room temperature. There may be up to a five minute delay before the thermostat clicks in Cooling if the compressor lock-out option is selected in the installer menu. (see INSTALLER MENU, item 50)

Heat, Cool or Fan Runs Constantly

| Possible short in wiring, thermostat, heat, cool or fan system| Check each wire connection to verify they are not shorted or touching other wires. Try resetting the thermostat. If the condition persists contact your HVAC service person.
Thermostat Display & Thermometer Disagree| Thermostat display requires adjustment| Display can be adjusted +/-5°. See User Menu item 04
Furnace (Air Conditioner) Cycles Too Fast or Slow (narrow or wide temperature swing)| The location of the thermostat and/or the size of the Heating System may be influencing the cycle rate| Digital thermostats provide precise control and cycle faster than older mechanical models. The system turns on and off more frequently but runs for a shorter time. If you would like to increase cycle time, choose SLO for slow cycle in the Installer menu. (Reference menu items 30 & 35) If an acceptable cycle rate is not achieved, contact your HVAC service person.
“Call for Service” icon appears on displayed|

Heating system is not able to heat the space to within 10 degrees of the setpoint within 2 hours
Cooling system is not able to cool the space to within 10 degrees of the setpoint within 2 hours
If “–” is displayed for the Room Temperature, a replacement thermostat is needed
None of the buttons operate on the thermostat

|

See corrective action for “No Heat”
See corrective action for “No Cool”
Replace thermostat
Make sure keypad lockout is not turned on (denoted by icon )

Resetting the Thermostat or Thermostat Settings

If the thermostat has good batteries, but has a blank display or does not respond to key presses, the thermostat should be reset by removing the batteries for 2 minutes. This reset will not change the menu settings or program. If the condition persists after reinstalling the batteries, replace the thermostat.
To conveniently reset only the schedule and user settings back to factory defaults, press Menu and Backlight buttons at the same time and hold until the display goes blank and resets.