Emerson 1F83H-21NP Non-Programmable Thermostats Instruction Manual

Emerson 1F83H-21NP Non-Programmable Thermostats

 

Thermostat Applications	Maximum Stages Heat/ Cool
Single Stage Compressor, Heat Pump Systems (air source or geothermal) – 1 Stage Aux/Emergency Heat	2/1

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	20 to 30 VAC, NEC Class II, 50/60 Hz
Input- Hardwire	20 to 30 VAC, NEC Class II, 50/60 Hz
Terminal Load	1.5 A per terminal, 2.5A maximum all terminals combined
Setpoint Range	45° to 99° F (7° to 37° C)
Rated Differentials (@ 6° F/ Hr):	Fast	Med	Slow
Heat Pump (Heat)	0.9°F	1.2°F	1.7°F
Heat Pump (Cool)	0.9°F	1.2°F	1.7°F
Auxiliary Heat	0.5°F	0.75°F	1.9°F
Operating Ambient	32°F to +105°F (0° to +41°C)
Display Temperature Ran ge	32°F to +99°F (0 to 37°C)
Operating  Humidity	90% non-condensing maximum
Shipping Temperature Ra nge	-20°F to + 150°F (-29° to +65°C)
Thermostat Dimensions	3-3/4” H x 6” W x 1-1/8” D

PART NO. 37-7569002 Replaces 37-7569001
2042
emerson.com/white-rodgers

THERMOSTAT INSTALLATION

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

Terminal Designations	Terminal Function
R	Power (24V)
O/B	Changeover Terminal-Energized in Cool (O) or Heat (B) for Heat Pump or Damper Syst ems
Y	Heat and Cool Mode 1st Stage Compressor
G	Fan Relay
E*	Auxiliary only Heat Mode (Emergency Heat)
C	Common wire for 24V (optional with batteries)
L	Heat Pump malfunction / Diagnostic terminal (input signal requires common)
W2*	Heat Mode – 2nd stage

Cut W2/E jumper when separate heat sources are used for W2 and E.
IMPORTANT: For Dual Fuel Heat Pump applications, be sure to turn on the Duel Fuel Logic option (found in the Installer’s Menu)

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 handling or distorting components could cause the control to malfunction.

WARNING!

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

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

Battery Location

Premium AA alkaline batteries are required when C-wire is not available. When C-wire is available, the batteries provide a backup source of power (this will maintain the clock in the event of a power outage).

1. W2/E Jumper Wire
   This thermostat electrically connects the W2 and E terminals so that you do not need to do this with a jumper wire. If your system has separate W2 and E wires, clip the W2/E jumper located on the back of the thermostat. This will isolate both terminals so they can be used independently.
2. 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 is installed requires a B terminal to energize the changeover relay in Heat, the O/B switch must be moved to the B position.

INSTALLER MENU
To prevent changes that may affect system performance, this thermostat has an INSTALLER’S MENU and a 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 to navigate through menu items.
Press or to change a menu setting.

Installer’s Menu # (Hol d Menu 8 Seconds)

Description

Default Setting (flashi ng icons)

Settings (Press or )

30	Heat Cycle Rate (how often th e heat will turn on)	MEd	SLO – slow MEd – medium FAS – fast
32	Aux Cycle Rate (how often the auxiliary heat will turn on)	MEd	SLO – slow MEd – medium FAS – fast
35	Cool Cycle Rate (how often th e cooling will turn on)	MEd	SLO – slow MEd – medium FAS – fast
50	Compressor Lockout (protects the compressor from short cycling)	OFF	On – 5 minute delay OFF – no delay
60	Duel Fuel Logic (turn On whe n using gas as the auxiliary heat source)	OFF	On-gas auxiliary heat OFF- electric auxiliary heat
65	Maximum Heat Limit (maximum set point for heat m ode	99	47 to 99
66	Minimum Cool Limit (minimum set point for cool mo de)	45	45 to 97
79	Fahrenheit or Celsius	°F	°F – Fahrenheit °C – Celsius
81	Temperature Display Adjust ment (adjust the displayed “Room Temperature”)	0	-5 to +5
83	Continuous Display Light (ke ep the backlight always on – “C ” wire required)	OFF	On – always on OFF – momentarily

99

Keypad Lock (prevent unwant ed changes to the thermostat)

OFF

On – disable buttons OFF – all buttons are act ive

TEST EQUIPMENT

Turn on power to the system.

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

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

Heating System

1. Move System Switch to Heat position. If the auxiliary heating system has a standing pilot, be sure to light it.
2. Press to adjust thermostat setting to 1° above room temperature. The heat pump the system should begin to operate and the thermostat will indicate Heat On.
3. Press to adjust thermostat setting to 3° above room temperature. The auxiliary heat should begin to operate and the thermostat will indicate Heat On Auxiliary.
4. Press to adjust the thermostat setting 1° below room temperature. The heating system should stop operating and the thermostat should indicate Heat.

Auxiliary System

1. Move System Switch to Aux position. If the auxiliary heating system has a standing pilot, be sure to light it.
2. Pressto adjust thermostat setting to 1° above room temperature. The auxiliary heating system should begin to operate and the thermostat will indicate Heat On Auxiliary.
3. Press to adjust the thermostat setting 1° below room temperature. The auxiliary heating system should stop operating and the thermostat should indicate Heat Auxiliary.4

Cooling System

1. Move System Switch to Cool position.
2. Pressto adjust the thermostat setting 1° below room temperature. The blower should come on immediately at 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)
3. Pressto 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)

CAUTION!
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	7.) Thermostat is protecting the equipment from short cycling (5-minute delay)
2.) System Switch	8.) Indicates that the system is running in cool, heat, or auxiliary mode (The auxiliary will run in Heat mode wh en the heat the pump cannot maintain the set temperature.) Backlight Button (located on the top
3.) Backlight Button (located on the top of the thermos tat	9.) Battery status indicator
4.) Raises Temperature Setting	10.) Low battery indicator
5.) Access Menu Options	11.) Temperature setpoint
6.) Lowers Temperature Setting	12.) Appears when the keypad is locked (to prevent un wanted changes)
	13.) Next (Menu button) is used to advance through t he menu
	14.) SEE TROUBLESHOOTING

Whenever “ Replace” 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 “ Replace ” is displayed, install new batteries before leaving.

USER MENU

To customize thermostat settings, press and hold the Menu button for ½ second from the home screen. Use Next to advance through menu items. Press or to change the setting.

User’s Menu # (Press Menu button and release)	Description	Default Setting (flashin g icons)	Settings (Press          or)
01	Continuous Display Lig ht (keep the backlight always on – “C” wire required)	OFF	On – always on OFF – momentarily

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 (this can also be turned on in the menu). To turn Off, press and hold and the Menu button for 3 seconds.

Symptom

Possible Cause

Corrective Action

No Heat/ No Cool/ No Fan (common problem)	1.) Blown fuse or tripped circuit breaker 2.) Furnace power switch to OF F 3.) Furnace blower compartment door panel loose o r not properly installed 4.) Lose connection to thermost at or system	1.) Replace fuse or reset the breaker 2.) Turn the switch to ON 3.) Replace the door panel in the proper posi tion to engage the safety interlock or door sw itch 4.) Tighten Connections
No Heat	1.) System Switch not set to He at 2.) Lose connection to thermost at or system 3.) Heating System requires ser vice or thermostat requires repla cement	Verify thermostat and system wires are secur ely attached. Diagnostic: Set System Switch to Heat and r aise the setpoint above room temperature. Within five minutes the thermostat should ma ke a soft click sound and “Heat On” should a ppear on display. This sound indicates the th ermostat is operating properly. If the thermos tat does not click, try the reset operation liste d below. If the thermostat does not click after being reset, contact your heating and cooling service person or place of purchase for a rep lacement. If the thermostat clicks, contact th e furnace manufacturer or a service person t o verify the heating system is operating corre ctly.
No Cool	1.) System Switch not set to Co ol 2.) Lose connection to the therm ostat or system 3.) Cooling System requires ser vice or thermostat requires repla cement	Verify thermostat and system wires are secur ely attached. Diagnostic: Set System Switch to Cool and l ower setpoint below room temperature. Sam e procedures as diagnostic for “No Heat” con dition except set the thermostat to Cool and l ower the setpoint below the room temperatur e. There may be up to a five-minute delay be fore the thermostat clicks in Cooling if the co mpressor lock-out option is selected in the in staller menu. (see INSTALLER MENU, item 50)
Heat, Cool, or Fan Runs Con stantly	Possible short in wiring, thermos tat, heat, cool or fan system	Check each wire connection to verify they ar e not shorted or touching other wires. Try res etting the thermostat. If the condition persists contact your HVAC service person.
Thermostat Display & Therm ometer Disagree	Thermostat display requires adj ustment	The display can be adjusted +/-5°. See User Menu item 04
Furnace (Air Conditioner) Cy cles Too Fast or Slow (narro w or wide temperature swing )	The location of the thermostat a nd/ or the size of the Heating Sy stem may be influencing the cyc le rate	Digital thermostats provide precise control and cycle faster than older mechanical models. The system turns on and off more fr equently but runs for a shorter time. If you wo uld like to increase cycle time, choose SLO f or the slow cycle in the Installer menu. (Refe rence menu items 30 & 35) If an acceptable cycle rate is not achieved, contact your HVA C service person.

The “Call for Service” icon ap pears on the display

1.) Heating system is not able to heat the space to within 10 degr ees of the setpoint within 2 hour s 2.) Cooling system is not able to cool the space to within 10 degr ees of the setpoint within 2 hour s 3.) If “–” is displayed for the Roo m Temperature, a replacement t hermostat is needed 4.) None of the buttons operate on the thermostat 5.) If “Call for Service” is flashing, compressor self- diagnostic is detecting an issue with the outdoor unit

1.) See corrective action for “No Heat” 2.) See corrective action for “No Cool” 3.) Replace the thermostat 4.) Make sure keypad lockout is not turned o n (denoted by the icon) 5.) Contact a service person to verify the equ ipment is operating correctly

Resetting the Thermostat or Thermostat Settings
If the thermostat has good batteries, but has a blank display or does not respond to keypresses, 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 the Menu and Backlight buttons at the same time and hold until the display goes blank and resets.
WARNING: This product contains a chemical known to the state of California to cause cancer and birth defects and other reproductive harm.
HOMEOWNER HELPLINE: 1-800-284-2925
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Emerson and White-Rodgers are trademarks of Emerson Electric Co. ©2020 Emerson Electric Co.
All rights reserved.

Documents / Resources

EMERSON 1F83H-21NP Heat Pump Thermostat [pdf] Instruction Manual 1F83H-21NP, Heat Pump Thermostat

References

• Thermostat Recycling Corporation (TRC)
• White-Rodgers Brand | Emerson US

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Emerson 1F83H-21NP Non-Programmable Thermostats Instruction Manual

Emerson 1F83H-21NP Non-Programmable Thermostats Instruction Manual