This article gives a table showing the proper wire connections nearly all types of White Rodgers room thermostats, new and old, used to control heating or air conditioning equipment, including the White Rodgers F90 2-wire and 3-wire thermostat installations. They are additionally valuable for making repair work. Emerson NP110. Wire color does not always correspond to the thermostat letters. Here you can find several troubleshooting instructions for the most popular thermostat models of Emerson brand. Usage electrical wiring representations to help in structure or manufacturing the circuit or digital tool. However, this product may replace a product that contains mercury. This thermostat features backlit display and precise temperature control of plus/minus 1°F. Read page 1 of our customer reviews for more information on the Emerson Single Stage Non-Programmable Thermostat NP110 The Emerson NP110 single-stage, non-programmable thermostat is compatible with single stage heating, cooling and heat pump (without aux) systems. If you need help with labeling and wiring, please contact Customer Support at 877.654.9394 or email wr.techsupport@emerson.com — we’re here to help! If you have a heat pump with reversing valve, connect Y and W with a jumper wire on your new thermostat. This information will be used in Step 4.5 to configure your thermostat. This thermostat features backlit display and precise temperature control. Thermostat Installation 2-4 Wiring 2 Installer Menu 3-4 5-6 Thermostat Overview 5 User Menu 6 Troubleshooting 7-8 Homeowner Help Line 8 INDEX MERCURY NOTICE: This product does not contain mercury. Each manual is presented in the form of a table for your convenience: it enlists the technical issue, the possible causes and ways to fix problems. Thermostat Terminals with attached wires Outdoor Equipment Setting (Used in 4.5) No wire on thermostat terminal Y No air conditioner / no heat pump AC0 DOES WIRE COLOR CORRESPOND TO THE THERMOSTAT TERMINALS? Please refer to the owner's manual of your old thermostat for clarification. * If the old thermostat has separate RC and RH wires coming out of the wall, clip the RC/RH jumper on the back of the thermostat above the battery compartment. the front cover, use the following chart, and check the box next to the settings that match your new thermostat’s wiring. Emerson Thermostat Troubleshooting. Thermostat wiring details & connections for the White Rodgers brand of room thermostats. A white wire may be attached to the “W” terminal on the old thermostat, or it may be attached to a different terminal with a different letter. 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