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Honeywell TH4210D manual

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Table of contents for the manual

  • Page 1

    Installation Guide TH4210D Programmable Thermostat[...]

  • Page 2

    Product Application This thermostat provides electronic control of 24 V A C heat pump systems with aux- iliar y heat (2 heat/1 cool). Must be installed by a trained, experienced technician • Read these instructions carefully . Failur e to follow these instructions can dam- age the product or cause a hazar dous condition. • Check the ratings in [...]

  • Page 3

    PRO TH4210D Programmable Thermostat 1 Install the thermostat about 5 feet (1.5m) above the floor in an area with good air circulation at average temperatur e. Do not install in locations where the thermostat can be af fected by: • Drafts or dead spots behind doors and in corners • Hot or cold air from ducts • Sunlight or radiant heat from app[...]

  • Page 4

    Installation Guide 2 Pre-installation checklist Package contents Check to make sure y our package includes the f ollowing items: • PR O TH4210D digital thermostat (wallplate attached to back) • Operating manual • W all anchors and mounting screws (2 each) • AA alkaline batteries (2) • Quick ref erence card Required tools & supplies ?[...]

  • Page 5

    PRO TH4210D Programmable Thermostat 3 W allplate installation Remove the w allplate from the ther- mostat as shown at left, then f ollow directions below f or mounting. 1 Pull wires through wire hole. 2 P osition wallplate on wall, level and mark hole positions with pencil. 3 Drill holes at marked positions as shown below , then tap in supplied wal[...]

  • Page 6

    Installation Guide 4 Wiring 1 Loosen screw terminals, insert wires into terminal block, then re- tighten screws. 2 Push e xcess wire back into the wall opening. K eep wires in shaded area as shown at left. 3 Plug the wall opening with non- f lamma ble insulation to pr event drafts from affecting thermostat operation. T erminal Designations E E Emer[...]

  • Page 7

    PRO TH4210D Programmable Thermostat 5 1 Power supply . Provide disconnect means and overload pr otection as required. 2 Optional 24 V AC common connection. 3 Use either O or B terminals for changeover valve. 4 L terminal is powered continuously when thermostat is set to Em Heat. 5 Install field jumper between E and Aux if there is no emergency heat[...]

  • Page 8

    Installation Guide 6 AC Power The thermostat can be powered by 24 V A C power , or by batter ies. T o wire the thermostat for AC po wer , connect the common side of the transf or mer to the “C” terminal as shown at left. Connect common side of transformer to “C” terminal Install batteries in back of thermostat (optional if AC powered). Batt[...]

  • Page 9

    PRO TH4210D Programmable Thermostat 7 6 5 T o begin, pr ess and hold the and buttons until the display changes Function number Press to change settings Press to advance to next function Pr ess and hold to exit and save settings Setting Installer setup Follow the pr ocedure below to configure the thermostat to match the installed heating/cooling sys[...]

  • Page 10

    Installation Guide 8 10 0 T est 10 20 30 70 Heating system Emergency heat Cooling system Thermostat information (for refer ence only) 0 Compressor and fan turn off. 1 Compressor and fan turn on. 2 Auxiliary heat turns on. 0 Heat and fan turn off. 1 Heat and fan turn on. 2 Auxiliary heat turns on. 0 Compressor and fan turn off. 1 Compressor and fan [...]

  • Page 11

    PRO TH4210D Programmable Thermostat 9 Built-in compressor pr otection (Setup Function 15) This featur e helps prevent damage to the compressor . Damage can occur if the compressor is r e- started too soon after shutdown. This feature for ces the compressor to wait f or a few min- utes befor e restarting. During the wait time, the message Cool On or[...]

  • Page 12

    Installation Guide 10 Quick refer ence to controls • Set: Press to set time/day/ schedule • Hold: Press to override programmed temperatur e control. • Run: Press to r esume program schedule System switch • Cool: Thermostat controls only the cooling system. • Heat: Thermostat controls only the heating system. • Off: Heating and cooling s[...]

  • Page 13

    PRO TH4210D Programmable Thermostat 11 In case of difficulty If you hav e dif ficulty with your thermostat, please tr y the sugg estions below . Most problems can be corrected quickl y and easily . Display is blank • Check circuit br eaker and reset if necessary . • Make sure heating & cooling power switches ar e on. • Make sure equipment[...]

  • Page 14

    Installation Guide 12 Accessories Please contact your distributor to order accessories. Cover plate assembly ............................................Part Number 50002883-001 (Used to cover marks left by old thermostats.) Specifications T emperature Ranges • Heat: 40° to 90°F (4.5° to 32°C) • Cool: 50° to 99°F (10° to 37°C) Operating[...]

  • Page 15

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  • Page 16

    Honeywell International Inc. 1985 Douglas Drive North Golden V alley , MN 55422 http://yourhome.honeywell.com Automation and Control Solutions Printed in U.S.A. on recycled paper containing at least 10% post-consumer paper fibers. ® U.S. Registered T rademark. © 2005 Honeywell International Inc. Patents pending. All rights reserved. 69-1763 • 0[...]