HoneywellメーカーTH4210Dの使用説明書/サービス説明書
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Installation Guide TH4210D Programmable Thermostat.
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.
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.
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) • Op.
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.
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.
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.
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).
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 hol.
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.
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.
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.
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 .
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.
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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.
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