Honeywell CT1800 Owner's Manual - Page 4

3 SCREW HOLES WITH PLASTIC ANCHORS HEATING-ONLY WALLPLATE M9612 5 WIRE WALLPLATE OR SUBBASE NOTE: All wiring must comply with local electrical codes and ordinances. Refer to illustration and strip thermostat wire insulations as necessary. FOR STRAIGHT CONNECTION- STRIP 5/16 in. [8 mm] SPIRIT LEVEL R G FAN ON AUTO O B W Y HEAT COOL OFF M2419 3-WIRE SYSTEM R W FOR WRAPAROUND CONNECTION- STRIP 7/16 in. [11 mm] BARRIER M1556B FOR CT1800 heating-only For 2-wire system, connect either wire to R terminal and the other wire to W terminal. For 3-wire system, connect W wire to W terminal, R wire to R terminal, and remaining wire to B terminal. Firmly tighten screws. Push excess wire back into wall, and plug hole in wall with nonflammable insulation to prevent drafts from affecting thermostat operation. 2-WIRE SYSTEM R W HEATING RELAY OR VALVE COIL 1 L2 L1 (HOT) 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. M2484B B W HEATING VALVE OR MOTOR 1 L2 L1 (HOT) 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. M2485B FOR CT1801 heating/cooling Connect the wires to matching terminals on the subbase. NOTE: If there are four wires, connect wire marked R to terminal RH and add a jumper wire to connect to RC. If RC is left unconnected, the air conditioner will not turn on. The 4-wire drawing on page shows how to jumper RC to RH. Strip the insulation off the wire where it connects to the terminals. Firmly tighten screws. If the labels do not agree with the terminal designations on your new subbase: • Refer to Table 2 • Determine correct hookup from the listed control function and the equipment control circuit. Push excess wire back into wall, and plug hole in the wall with nonflammable insulation to prevents drafts from affecting thermostat operation. 69-0394-3 4