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Environmental & Combustion Controls
Q539C1020
Taupe Switching Subbase with R,G,Y,O terminals for Cooling only systems.

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Overview
Thermostat Subbases provide system and fan switching, and mounting for T87F Thermostats.

This product is obsolete. It can be purchased while supply lasts, or you can look for a replacement in the cross-reference.
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Features

• Include cooling anticipator and letter-coded screw terminals for electrical connections.
• Wide range of switching functions fits most heating, cooling or heating-cooling applications
• Mount directly on wall or on an outlet box using optional 6 in. (152 mm) cover ring or adapter plate assembly.
Product Specifications  Back To Top
Description Taupe Switching Subbase with R,G,Y,O terminals for Cooling only systems.
Application Cooling only systems
Mounting Round
Color Taupe
Stages 1 Cool
Terminal Designations R, G, Y, O
Switch Positions (Fan) ON-AUTO
Switch Positions (System) COOL-OFF
Dimensions (in.) 3 11/16 in. diameter x 1 3/4 in. deep
Dimensions (mm) 94 mm diameter x 45 mm deep
Heat Current 2A @ 30 Vac max.
Used With T87F
Tradeline Value Tradeline
Voltage 20 to 30 Vac

Literature and other Resources Download Back To Top
Product Data - (Q539A, Q539B, Q539C, Q539D, Q539F, Q539G, Q539H, Q539J, Q539M Thermostat Subbases)
Installation Instructions - (Q539A, Q539B, Q539C, Q539G, Q539H, Q539J Thermostat Subbases)
Installation Instructions - (Q539A, Q539C, Q539J, Q539P Thermostat Subbases - Tradeline)
Installation Instructions - (Q539A, Q539H, Q539J Subbases)
Installation Instructions - (Q539A, Q539H, Q539J FRENCH Plaques de Commutation)
Installation Instructions - (T87F3707, T87F3715 Zone Thermostat and 137421N,P Wallplate; T87F Zone Thermostat and Q539A,B Subbases)
Installation Instructions - (Q539A, Q539J, W884 Subbases for Comfort Control Center)
Installation Instructions - (Q539B Subbase)
Product Data - (MABS MABS 2 Zone Panel; MM-2 Minizone Panel; MAZ-1 - MAZ-7 Add-A-Zone Panel; T87F, T874, T8090, T8602, T8611, T8621 Thermostats; Q539, Q674, Q682 Subbases For TROL-A-TEMP)
Owners Guide - (Q539 Homeowner Sheet (Explains Lockout Light))
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