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This thermostat is intended for use with a low voltage NEC 
Class II system. Do not use this thermostat with a line voltage 
system. If in doubt about whether your wiring is millivolt, line, 
or low voltage, have it inspected by a qualified heating and air 
conditioning contractor or electrician.
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.

Emerson Blue Easy Set 

2H/1C 

Non-Programmable Thermostat with 3 Temperature Pre-Sets

Home, Sleep and Away

Installation Instructions and User Guide

Model: 1F89EZ-0251 
             Heat Pump

www.white-rodgers.com

www.emersonclimate.com

PART NO. 37-7208B 

Replaces 37-7208A

1106

Message to Homeowner

Congratulations on choosing the Emerson Blue Easy Set 
Thermostat. The Easy Set is designed to be the easiest 
thermostat you have ever used. This thermostat features 
Home, Sleep, and Away temperature pre-sets. Just press 
the button and go. Included with the easy set is the same 
temperature accuracy and reliability you expect from all the 
Emerson Blue thermostats.

Just Press the Button and Go!

Table of Contents

Get to know your thermostat .......................................2 

  Thermostat buttons and switches ...............................2

 Display .........................................................................2

 Batteries ......................................................................2

Using your thermostat .................................................3

  Home, Sleep and Away temperature pre-sets ............3

  Sleep Timer option ......................................................3

  Change Filter reminder option ....................................3

  Cool Savings option ....................................................3

Installation .....................................................................4 

  Remove the old thermostat .........................................4

  Install the new thermostat ...........................................4

  Set switches ................................................................4

  Check thermostat operation ........................................4

  Select configuration options ........................................5
  Configuration menu .....................................................5

Troubleshooting Guide ................................................6 

Technical Data ...............................................................7

  Wiring diagrams ..........................................................7 

  Thermostat application guide ......................................8

  Specifications ..............................................................8

3 Simple Pre-Sets

Summary of Contents for 1F89EZ-0251

Page 1: ...NO 37 7208B Replaces 37 7208A 1106 Message to Homeowner Congratulations on choosing the Emerson Blue Easy Set Thermostat The Easy Set is designed to be the easiest thermostat you have ever used This thermostat features Home Sleep and Away temperature pre sets Just press the button and go Included with the easy set is the same temperature accuracy and reliability you expect from all the Emerson Blu...

Page 2: ...ervice indicatesadiagnosticfaultintheheating cooling system It does not indicate a fault in the thermostat 13 indicates power level of batteries Change indicates batteries should be replaced 14 AUX indicates auxiliary stage is operating 15 EMER is displayed flashing when the system switch is in EMER position Batteries Two AA alkaline batteries are included with your thermostat Prior to use open th...

Page 3: ... Savings enabled the thermostat will make small adjustments to the desired temperature during periods of high demand to reduce cooling system running time and save energy When the cooling system has been running for more than 20 minutes humidity in the home will be lower and a higher temperature will feel comfortable After 20 minutes of run time the thermostat will start increasing the desired tem...

Page 4: ...ngeover relay in HEAT the O B switch must be moved to the B position Check Thermostat Operation Heating System 1 Move SYSTEM switch to HEAT position If the heating system has a standing pilot be sure to light it 2 Press to adjust thermostat setting to 1 above room temperature The heating system should begin to operate 3 Press to adjust temperature setting below room temperature The heating system ...

Page 5: ...y is pressed 09 Room Temp 0 4 LO to 4 HI Select room temperature display for 4o higher or 4o lower than the actual temperature 10 o F o C Select o F or o C Display temperature displayed in Fahrenheit or Celsius 11 FH On OFF Select fast second stage On or OFF 12 Change Filter OFF On Select filter maintenance indicator OFF or On If selected OFF item B will be skipped 13 Change Filter 200 h 25 to 197...

Page 6: ...lacement Set System Switch to Cool and lower setpoint below room temperature Verify thermostat and system wires are securely attached Same procedure 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...

Page 7: ...MOSTAT APPLICATION GUIDE Thermostat Configuration Options Thermostat Applications Maximum Stages Heat Cool Heat Pump 1 Single Stage Compressor Heat Pump HP Single Stage Compres sor Heat Pump Systems with Aux Emergency Heat 2 1 Specifications Electrical Rating Battery Power or Hardwire 20 to 30 VAC 50 60 Hz or DC Terminal Load 1 5 A per terminal 2 5 A maximum all terminals combined Setpoint Range 4...

Page 8: ...www white rodgers com www emersonclimate com White Rodgers is a division of Emerson Electric Co The Emerson logo is a trademark and service mark of Emerson Electric Co Homeowner Help Line 1 800 284 2925 ...

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