Instruction d'utilisation White Rodgers 1F78

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CONTENTS
Installation Instructions for
Preparations .................................................. 1
Thermostat Details ........................................ 1
Removing Old Thermostat ............................ 1
Heating & Air Conditioning
Mounting and Wiring ..................................... 2
Check Thermostat Operation ........................ 3
1F78
Specifications ................................................ 5
Troubleshooting ............................................ 5
Non

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REMOVING OLD THERMOSTAT 3 CAUTION ! CONTINUED FROM FIRST PAGE Take care when securing and routing wires so they do ATTENTION! This product does not contain mercury. How- not short to adjacent terminals or rear of thermostat. ever, this product may replace a unit which contains mercury. Personal injury and/or property damage may occur. Do not open mercury cells. If a cell becomes damaged, do not touch any spilled mercury. Wearing non-absorbent gloves, take TERMINAL CROSS REFERENCE CHART up the sp

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MOUNTING AND WIRING 4 CONTINUED FROM SECOND PAGE JUMPER THERMOSTAT WIRE B O Y G W RC RH THERMOSTAT SYSTEM B O Y G W RC RH SYSTEM Hot Cooling Fan Heating 24 VAC 120 VAC System Relay System Fan Heating Neutral Relay System Hot HEATING TRANSFORMER 24 VAC 120 VAC NOTE Neutral For 2-wire Heat only, Hot attach to RH and W TRANSFORMER 24 VAC 120 VAC Neutral Figure 2. Typical wiring diagram for COOLING TRANSFORMER heat only, 3-wire, single transformer systems Figure 5. Typical wiring diagram for JUMPE

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CHECK THERMOSTAT OPERATION 5 CONTINUED FROM THIRD PAGE Before you begin using your thermostat, you should be familiar 1 with its features and with the display and the location and operation of the thermostat buttons. Your thermostat consists of 2 two parts: the thermostat cover and the base. To remove the cover, gently pull it straight out from the base. To replace the cover, line up the cover with the base and press gently until the cover snaps onto the base. WHITE-RODGERS The Thermostat Button

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SPECIFICATIONS 6 ELECTRICAL DATA THERMAL DATA Electrical Rating: Setpoint Temperature Range: 0 to 30 VAC 50/60 Hz. or D.C. 45°F to 90°F (7°C to 32°C) 0.05 to 1.0 Amps (Load per terminal) Operating Ambient Temperature Range: 1.5 Amps Maximum Total Load (All terminals combined) 32°F to 105°F Operating Humidity Range: 0 to 90% RH (non-condensing) Shipping Temperature Range: -40°F to 150°F TROUBLESHOOTING 7 Reset Operation and still does not function correctly contact your heating/cooling If a volta

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TROUBLESHOOTING 7 CONTINUED FROM FIFTH PAGE Symptom Possible Cause Corrective Action Heat, Cool or Fan Runs Constantly. 1. Possible short in wiring. Check each wire connection to verify they are not 2. Possible short in thermostat. shorted or touching together. No bare wire should 3. Possible short in heat/cool/fan system. stick out from under terminal screws. Try resetting 4. FAN Switch set to Fan ON. the thermostat as described above If the condition persists the manufacturer of your system o