T874A Zone Thermostat Manuals - thermostat.guide https://thermostat.guide/tag/t874a-zone-thermostat/ Thermostat Manuals Fri, 24 Feb 2023 06:24:21 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 Honeywell T874A Zone Thermostat Installation Instruction https://thermostat.guide/honeywell/honeywell-t874a-zone-thermostat-installation-instruction/ https://thermostat.guide/honeywell/honeywell-t874a-zone-thermostat-installation-instruction/#respond Mon, 13 Feb 2023 13:40:31 +0000 https://thermostat.guide/?p=29708 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 […]

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