Instruction/ maintenance manual of the product 1F92-71 White Rodgers
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PART NO. 37-4742B Replaces 37-4742A 9309 Operator: Save these instructions for future use! WHITE-RODGERS DIVISION EMERSON ELECTRIC CO. 9797 REAVIS ROAD ST.
2 SPECIFICA TIONS Anticipation: Heating 4 to 40 Cooling 4 to 40 Auxiliary 4 to 40 THERMAL DATA Temperature Range: 40 ° F to 99 ° F (4 ° C to 37 ° C) STAGING DATA Up to 3 heating stages Up to 2 cooling stages ACCESSORIES Remote Sense Kit: W. R. Part No.
3 REPLACEMENT INST ALLA TION REMOVE OLD THERMOSTAT 1. Shut off electricity at the main fuse box until installa- tion is complete. Verify power is off with a voltmeter. 2. Remove the front cover of the old thermostat. With wires still attached, remove wall plate from the wall.
4 2. Connect wires beneath terminal screws on subbase using wiring schematic for your particular application (see figs. 3 through 6). 3. Place subbase over hole in wall and mark mounting hole locations on wall using subbase as a template. 4. Move subbase out of the way.
5 IF SAFETY CIRCUITS ARE IN ONLY ONE OF THE SYSTEMS, REMOVE THE TRANSFORMER OF THE SYSTEM WITH NO SAFETY CIRCUITS. NOTE Limit or Safety Switches Heat Relay Stage 1 Figure 5.
6 ATTACH THERMOSTAT TO SUBBASE IT IS RECOMMENDED THAT YOU SET OPTION SWITCHES TO DESIRED POSITION BEFORE ATTACH- ING ON SUBBASE (see OPERATION ). IT IS ALSO RECOMMENDED THAT YOU PROGRAM THE THERMOSTAT WITH BATTERY INSTALLED BEFORE ATTACHING ON SUBBASE (see OPERATION GUIDE for programming instructions) .
7 5. Economizer — 1st stage cooling 6. Automatic Changeover from Heat to Cool The battery maintains the stored program in the event of a power failure. When attached to the wall with 24vAC power applied, the thermostat will function normally with- out the battery.
COOLING SYSTEM To prevent compressor and/or property damage, if power to the compressor has been off or interrupted for more than 1 hour and the outdoor temperature is below 50 ° F, DO NOT operate th.
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