Honeywell Q674L- Manuals

69-0392—9 2 T874R THERMOSTATS AND Q674L SUBBASES OPERATION On a 2-heat thermostat, the two stages of heat make sequentially as the temperature drops. Make refers to the mercury switch initiating a call for heat or cool. There is about 1 ° F (0.6 ° C) between stages so the sec- ond stage makes only w...

69-0392—9 3 T874R THERMOSTATS AND Q674L SUBBASES M925 VERTICAL OUTLETBOX ADAPTERRING SUBBASE COVER PLATE MOUNTINGSCREWS (2) MOUNTINGSCREWS (2) 1 SUBBASE MOUNTINGSCREWS (2) HORIZONTALOUTLETBOX 1 2 2 NOT INCLUDED WITH UNIT. ACCESSORY PARTS AVAILABLE (193121A). 1 2 Fig. 1. Installation of subbase on ou...

69-0392—9 8 T874R THERMOSTATS AND Q674L SUBBASES Mounting the Thermostat 1. Remove the thermostat cover by pulling the bottom edge of the cover away from the base until it snapsfree from the cover clip. NOTE: The cover is hinged at the top and can beremoved by pulling out at the bottom. 2. Carefully...

69-0392—9 2 T874R THERMOSTATS AND Q674L SUBBASES OPERATION On a 2-heat thermostat, the two stages of heat make sequentially as the temperature drops. Make refers to the mercury switch initiating a call for heat or cool. There is about 1 ° F (0.6 ° C) between stages so the sec- ond stage makes only w...

69-0392—9 3 T874R THERMOSTATS AND Q674L SUBBASES M925 VERTICAL OUTLETBOX ADAPTERRING SUBBASE COVER PLATE MOUNTINGSCREWS (2) MOUNTINGSCREWS (2) 1 SUBBASE MOUNTINGSCREWS (2) HORIZONTALOUTLETBOX 1 2 2 NOT INCLUDED WITH UNIT. ACCESSORY PARTS AVAILABLE (193121A). 1 2 Fig. 1. Installation of subbase on ou...

69-0392—9 8 T874R THERMOSTATS AND Q674L SUBBASES Mounting the Thermostat 1. Remove the thermostat cover by pulling the bottom edge of the cover away from the base until it snapsfree from the cover clip. NOTE: The cover is hinged at the top and can beremoved by pulling out at the bottom. 2. Carefully...