Perfect Honeywell T874r Wiring Diagram

T874r thermostats and q674l subbases fig.

Honeywell t874r wiring diagram. These wiring diagrams are for guidance only and at the time of publication represent the latest information available to us from other manufacturers. Honeywell super tradeline t874r pdf user manuals. Honeywell reserve the right at any time and without notice to change any product specification or any other information contained in this publication and cannot accept any responsibility for loss or damage arising out of any errors that may.

Jul 21 2008 04 59 am. Replaces ge ay28x078 ay28x139. I have a trane xe 1100 and my son tried to put a new digital thermostat in for me in place of an old honeywell mercury thermostat model t874r 1053.

Internal schematic and typical wiring diagram for t874r q674l in heat pump system. Replaces ge ay28x078 ay28x139. Push excess wire back into the hole.

Internal schematic and typical wiring diagram for y594r1763 t874r1954 q674l1827. And honeywell y594r1136 therm ostats. H1 fall c1 l1 hot l2 1 g w u b f r t x2 o y fan relay aux.

Run wires as close as possible to the subbase keeping wire length to a minimum. Led grn relay fan relay b relay g cool changeover valve em. When he unhooked the wires he didn t tag.

View and download honeywell t874g installation instructions manual online. And honeywell y594r1136 thermostats. Schematic and hookup.