| Thermostat Subbase provides system and fan switching, and mounting for T87F Thermostats Includes cooling anticipator and letter-coded screw terminals for electrical connections. Wide range of switching functions fit most heating, cooling or heating-cooling applications Mounts directly on wall or on an outlet box using optional 6 in. (152 mm) cover ring or adapter plate assembly Product Specifications: Description: Switching Subbase with R,B,P,W,Y,O,G terminals for Single stage heat pump and electric heat systems Application: Single stage heat pump and electric heat systems Mounting: Round Changeover: Determined by thermostat Color: Premier WhiteŽ Terminal Designations: R, B, P, W, Y, O, G Switch Positions (Fan): AUTO-ON Switch Positions (System): COOL-OFF-HEAT Dimensions (in): 3 11/16 in. diameter x 1 3/4 in. deep Dimensions (mm): 94 mm diameter x 45 mm deep Electrical Ratings: 2A @ 30 Vac max. Comments: Same as Q539J1006, except Premier White Used With: T87F Additional Information: Installation Guide Product Specification Honeywell Subbase for T87F Thermostats Q539-J-1154
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