Instruction/ maintenance manual of the product 1F89EZ-0251 White Rodgers
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This thermostat is intended for use with a low v oltage NEC Class II system. Do not use this thermostat with a line voltage system. If in doubt about whether y our wiring is millivolt, line, or low v oltage, ha ve it inspected b y a qualified heating and air conditioning contractor or electrician.
2 Get to know y our thermostat Bef ore y ou beg in using your thermostat, y ou sho uld be f amil iar with i ts f eatures and with the displ ay and the l ocation a nd operation of the thermostat buttons and s witches. The Thermostat Buttons and Switches 1 Raises temperature setting.
3 Using y our thermostat Home, Sleep and A way T emperature Pre-Sets Y ou can set y our (Home , Sleep , Aw ay) temperatures for use when you get home, go to sleep , or leav e home. Then, just press the button y ou want and go . F av orite T emperatures are set at the f actory as indicated in the f ollowing table .
4 Remove the Old Thermostat 1. T urn off power to the heating and cooling system. 2. Remov e the front cov er of the old ther mostat, this usually pulls off . 3. Loosen the screws that hold the thermostat to the wall. 4. Identify each wire attached to the old thermostat.
5 Configuration Menu Menu Screen Number Display ed (Factory Default) Press or to select options 01 Sleep (OFF) On Select Sleep Timer On or OFF If selected OFF , skip to menu screen 04 02 h (8) 1 to 12 Select 1 to 12 hours f or Sleep Timer On.
6 T r oubleshooting Reset Operation If a v oltage spike or static discharge blanks out the display or causes erratic ther mostat operation, you may need to reset the thermostat. T o reset, the System Switch must be in Cool, HEA T , or EMER . Simultaneously hold the and buttons f or appro ximately 10 seconds until the displa y goes b lank.
7 T echnical Data L R C 24 VA C 120 VA C Hot SYSTEM MONITOR SWITCH Neutral THERMOS TAT SYSTEM G W2 Figure 2. T ypical wiring diagram f or single transformer systems TRANSFORMER (Class II Current Limit.
www .white-rodgers.com www .emersonc limate .com White-Rodgers is a division of Emerson Electric Co. The Emerson logo is a trademark and service mar k of Emerson Electric Co.
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