69-1849 - PRO 4110D Programmable Thermostat - Honeywell

Product ApplicationThis thermostat provides electronic control of 24 VAC single-stage heating and coolingsystems, or 750 mV heating systems.System Types• Gas, oil, or electric heat with airconditioning• Warm air, hot water, high-efficiencyfurnaces, heat pumps, steam, gravity• Heat only• Heat only with fan• Cool only• 750 mV heating systemsPower Type• Battery power• Common wire• Common wire with battery backupSystem Settings• Heat, Off, CoolFan Settings• Auto, OnMust be installed by a trained, experienced technician• Read these instructions carefully. Failure to follow these instructions can damagethe product or cause a hazardous condition.• Check the ratings in this booklet to verify that this product is suitable for yourapplication (see page 13).• Always test for proper operation after installation (see pages 8-9).CAUTION: ELECTRICAL HAZARDCan cause electrical shock or equipment damage. Disconnect power beforebeginning installation.MERCURY NOTICEIf this product is replacing a control that contains mercury in a sealed tube, do notplace the old control in the trash. Contact your local waste management authority forinstructions regarding recycling and proper disposal.® U.S. Registered Trademark. Patents pending.Copyright © 2005 Honeywell International Inc. All rights reserved.