Honeywell CT3611 Owner's Manual - Page 8

IMPORTANT If you have any wiring questions, contact Honeywell at www.honeywell.com/yourhome or call Honeywell Customer Relations Center, toll-free, 1-800-468-1502. Table 1. Terminal Designations on Old and New Thermostats. CT3611a C R Typical Terminal Designations from the Existing Thermostat C C or X C R R R Y Y or Y1 Y or Y1 Y or Y1 W1c - - - W2 W or W, W1 W or W1 or W2 W1 G G G G Oa Oa Oa Oa Ba Ba Ba Ba L L L or X L E E E E or X - - - - Alternative Terminal Designations Trane American Standard Lennox York Borg Warner General Electric B X B C or B R V or VRb R R Y M Y Y - - - - W or W1 jumped to U G Oa - W1 or Y W or W2 W or W1 F or G G G R or Oa Oa Oa - H - F or L X2 or E Td or Ad L F F or L E X or E E or X2 Ad Td Td Rheem Ruud X R Y or Y1 - W2 Function Description Common Power Compressor Stage 1 heating relay Auxiliary heat relay G Fan relay Oa Cooling changeover relay - Heating changeover relay L System monitor E Emergency heat relay - Tape off, not needed for CT3611 a Never attach wires to both the O and B terminals on the CT3611. If the old thermostat had wires on both the O and B terminals, be sure to attach the B wire to the CT3611 C terminal. If another wire is already matched to the C terminal, contact Honeywell. b If the old thermostat had separate wires on both the V and VR terminals, some system modification is required. Call your local heating and cooling contractor for assistance. c If the old thermostat had wires on W1, Y1 and W2 terminals, then remove the CT3611 factory-installed jumper between Y and W1 terminals and match the old W1 to W1, Y1 to Y and W2 to W2. d Use electrical tape to tape off the end of the wire and push the taped end back into the wall wiring hole. 69-1081-3 8