Carrier Programmable Dual Fuel Thermostats Installation, Start-up, And Operating Instructions Manual

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Carrier Programmable Dual Fuel Thermostats Installation, Start-up, And Operating Instructions Manual Manual pdf 1 page image

Programmable Dual Fuel ThermostatsInstallation, Start-Up, and Operating InstructionsNOTE: Read the entire instruction manual before starting theinstallation.This symbol → indicates a change since the last issue.INDEXPageSAFETY CONSIDERATIONS .....................................................1INTRODUCTION ..........................................................................1SYSTEM CONSIDERATIONS ....................................................1APPLICATION ..............................................................................2DESCRIPTION OF OPERATION ............................................2-3INSTALLATION CONSIDERATIONS .......................................3INSTALLATION......................................................................3-12Thermostat Location .................................................................3Set DIP Switches...................................................................3-4Install Thermostat .....................................................................4Set Thermostat Configuration ...............................................4-6Check Thermostat Operation....................................................6Final Settings ............................................................................7Checklist....................................................................................7WIRING DIAGRAMS .............................................................7-10OPERATIONAL INFORMATION.............................................11TROUBLESHOOTING ...............................................................11CONFIGURATION RECORD....................................................12SAFETY CONSIDERATIONSRead and follow manufacturer instructions carefully. Follow alllocal electrical codes during installation. All wiring must conformto local and national electrical codes. Improper wiring or installa-tion may damage thermostat.Recognize safety information. This is the safety-alert symbol .When you see this symbol on the equipment and in the instructionmanual, be alert to the potential for personal injury.Understand the signal words DANGER, WARNING, and CAU-TION. These words are used with the safety-alert symbol. DAN-GER identifies the most serious hazards which will result in severepersonal injury or death. WARNING signifies a hazard whichcould result in personal injury or death. CAUTION is used toidentify unsafe practices which would result in minor personalinjury or product and property damage.INTRODUCTIONCarrier’s 7-day programmable dual fuel thermostat is a wall-mounted, low-voltage thermostat which provides proper control ofa heat pump (HP) and furnace combination without using aHP/furnace interface kit. Separate heating and cooling set points,plus auto changeover allow setback programming for maximumenergy savings. Up to 4 time/temperature settings per 24 hourperiod for 7 independent days may be programmed. Batteries arenot required; during a power interruption, the internal memorystores programs for an unlimited time and the clock continues torun for at least 72 hrs.→ SYSTEM CONSIDERATIONSThe dual fuel thermostat is designed to be used only in HP/furnaceinstallations. It replaces a conventional 2-stage HP thermostat anda HP/furnace interface kit. An outdoor temperature sensor, PartNo. TSTATXXSEN01-B MUST be used with this thermostat. It issupplied with thermostat.If HP is not already equipped with a high-pressure switch, onemust be added for dual fuel applications. It protects HP fromoverpressure which would occur if a failure resulted in bothHP and furnace operating at same time. Kit No.KSAHI0201HPS includes required switch and instructionsfor its proper installation.A HP/furnace installation has several special requirements. Fore-most is that furnace and HP must not be allowed to operate at sametime, except during HP defrost. A second is to have furnacecomplete a heating cycle once it is turned on. A third is the needto have HP not operate at all when outdoor temperatures are belowa certain value. A fourth is to have the furnace not operate at allwhen outdoor temperatures are above a certain higher value.Finally, HP and furnace must work together properly to provide anefficient and comfortable defrost. These requirements are ad-dressed by the dual fuel thermostat itself and an interface kit isNOT required.As an ENERGY STAR Partner, Carrier Corporation hasdetermined that this product meets the ENERGY STARguidelines for energy efficiency.→ Fig. 1—Carrier Programmable ThermostatA98426HEIGHT (IN.) WIDTH (IN.) DEPTH (IN.)4-1/4 7-1/2 1-3/8Visit www.carrier.comManufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Book 1 4Tab misc. misc. PC 101 Catalog No. 03TS-TA9 Printed in U.S.A. Form TSTAT-18SI Pg 1 10-98 Replaces: TSTAT-9SI