Tag: T874A

  • Honeywell T874A Zone Thermostat Installation Instruction

    Honeywell T874A Zone Thermostat Installation Instruction

    Honeywell T874A Zone Thermostat  Application These T874A,D Zone Thermostats and Q674B,D,E Subbases provide 24 to 30 Vac temperature control in Honeywell Trol-A-Temp heating/cooling zone systems. See Table 1 for thermostat/subbase and system compatibil-ity; see Table 2 for thermostat specifications. For complete Honeywell Trol-A-Temp System specification and appli-cation information, refer to the system specification in-cluded with…