Instruction/ maintenance manual of the product THX9421 Honeywell
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THX932 1 /942 1 Pr estig e ® IA Q and R F EIM With wir eless accessories ® U.S . Registered T rademark. Copyright © 2011 Honeywell International Inc.
Syst em Installa tion Guide 2 6 9 - 24 9 0 — 0 3 Y ou r Honey well advant age RedLINK™ Compatible Increaseyour contentand profitper jobby including RedLINK™accessories that meet yourcustomers comfort andconvenience needs.
T H X9 3 21/9 4 21 P r e s t i g e ® IAQ a nd RF EI M 3 6 9 - 24 9 0 — 0 3 MCR29241 MCR32386 Install thermostat 1 • THX9421: Mountthe thermostat andwire toC and Rterminals of the Equipment InterfaceModule (EIM), orto a separate24 volt transformer (not provided).
Syst em Installa tion Guide 4 6 9 - 24 9 0 — 0 3 M32940 [If no wireless accessories are used, skip to Section 4.] Portable Comfort Control Install 2 fresh AAA alkaline batteries Install 3 fresh AA a.
T H X9 3 21/9 4 21 P r e s t i g e ® IAQ a nd RF EI M 5 6 9 - 24 9 0 — 0 3 MCR32941 CONNECT CONNECTED S2 S2 S1 S1 Link th ermost at to the wir eless net work (if use d with an EIM or T r ueZONEW ireles s Adapter) 4 Next, linkall components andRedLINK ™ accessories tothe wirelessnetwork.
Syst em Installa tion Guide 6 6 9 - 24 9 0 — 0 3 MCR32943 MCR32942 CONNECT WIRELESS SETUP MCR32935 MCR32934 While theAdd Device screenis displayed on thethermostat, press and r elease the CONNECT buttonon each wirelessdevice, as described below .
T H X9 3 21/9 4 21 P r e s t i g e ® IAQ a nd RF EI M 7 6 9 - 24 9 0 — 0 3 Ins tall opt ional sen sors 1 Mount thesensor on avertical exterior wall,at least 6inches below any overhang.Choose a location protectedfromdirect sunlight.
Syst em Installa tion Guide 8 6 9 - 24 9 0 — 0 3 Setu p Inst aller opti ons ( ISU ) 7 Press CREA TE SETUP to set all system settings oneby one.
T H X9 3 21/9 4 21 P r e s t i g e ® IAQ a nd RF EI M 9 6 9 - 24 9 0 — 0 3 5080 Return Air Sensor T ype B 5090 T er minals Wired to Discharge Air Sensor B 5100 Discharge Air Sensor T ype B 5110 A-C.
Syst em Installa tion Guide 10 6 9 - 24 9 0 — 0 3 T ypicalwiring of aconventional system with upto 3-stage heatand 2-stage cool with onetransformer .
T H X9 3 21/9 4 21 P r e s t i g e ® IAQ a nd RF EI M 11 6 9 - 24 9 0 — 0 3 EI M wiring gu ide — heat pum p systems T ypicalwiring of aheat pump system withup to four -stage heatand two-stage cool withone transformer .
Syst em Installa tion Guide 12 6 9 - 24 9 0 — 0 3 EI M wiring gu ide — geot hermal r adiant he at T ypicalwiring for geothermalradiant heat, geothermal for ced-air , and backup heat withone transformer . 1 2 3 U1, U2 or U3 terminals must be used for geothermal radiant heat (ISU 2010).
T H X9 3 21/9 4 21 P r e s t i g e ® IAQ a nd RF EI M 13 6 9 - 24 9 0 — 0 3 Thermo stat wirin g guide s — Prest ige THX932 1 T ypicalwiring of a2-heat / 2-cool con- ventional.
Syst em Installa tion Guide 14 6 9 - 24 9 0 — 0 3 Prest ige TH X932 1 or EI M : Usin g univers al relays to co ntrol he ating o r cooling Powering universalrelaywith separate heating.
T H X9 3 21/9 4 21 P r e s t i g e ® IAQ a nd RF EI M 15 6 9 - 24 9 0 — 0 3 Wiring g uide — IAQ equip ment ( EIM or t hermos tat ) "U" terminalscan be usedfor humidification, dehumidificationor ventilation. With po wer supply Without pow er supply T yp ica l hoo ku p of non - pow er ed hu mid ifi er.
Syst em Installa tion Guide 16 6 9 - 24 9 0 — 0 3 Economizer Module wiri ng guides T ypicalwiring of aW7220 Economizer Module fora heat pumpsystem, using a PrestigeTHX9321 thermostator Equipment Interface Module.
T H X9 3 21/9 4 21 P r e s t i g e ® IAQ a nd RF EI M 17 6 9 - 24 9 0 — 0 3 Economizer Module wiri ng guides T ypicalwiring of aW7213/W7214 Economizer Module fora heat pumpsystem, using aPrestigeTHX9321 thermostat or EquipmentInterface Module.
Syst em Installa tion Guide 18 6 9 - 24 9 0 — 0 3 The Economizercan greatlyreduceenergy costs if configur ed properly .In some climates thecooling system mayrun hundredsof hours, whenit may not be requir ed tomaintain indoor comfort.
T H X9 3 21/9 4 21 P r e s t i g e ® IAQ a nd RF EI M 19 6 9 - 24 9 0 — 0 3 Heat pu mp with o utdoor tempe ratur e lockouts Heat pu mp and ba ckup heat op erati on Outdoor temperatur e lockoutsare optional.See Installer Setup options (ISU3120).
Syst em Installa tion Guide 20 6 9 - 24 9 0 — 0 3 Backu p heat dif ferent ial an d upst age tim er Bas ic and Advan ced T em peratu re Contr ol Opt ions ( ISU 3 0 1 0 ) A backupheat differ .
T H X9 3 21/9 4 21 P r e s t i g e ® IAQ a nd RF EI M 21 6 9 - 24 9 0 — 0 3 Humidification The thermostatcan be setto controlhumidification in allmodes (Heat, Off,Cool [ISU 8060]).A discharge airsensor is requir ed tohumidify in thecool mode.
Syst em Installa tion Guide 22 6 9 - 24 9 0 — 0 3 Commercial dehumidification Dehumidification EquipmentOptions: (ISU 9000) • A/C withLow Speed Fan • A/C with.
T H X9 3 21/9 4 21 P r e s t i g e ® IAQ a nd RF EI M 23 6 9 - 24 9 0 — 0 3 Southern Dehumidification Aw ay Mode This featur e lowersthe temperatureup to 3° Fbelow the setpointas needed to preventexcessive humiditywhile the home isunoccupied.
Syst em Installa tion Guide 24 6 9 - 24 9 0 — 0 3 Indoor sensor oper ation Wireless indoor sensor T emperature control The thermostatcan be setto respondto its internal temperaturesensor , or to anoption- al r emote indoorsensor .
T H X9 3 21/9 4 21 P r e s t i g e ® IAQ a nd RF EI M 25 6 9 - 24 9 0 — 0 3 Delta T Fault Sensitivity is adjustab le in the Installer Setup (ISU 13180) Delta T diagnostics is only for non-zoned f orced air systems.
Syst em Installa tion Guide 26 6 9 - 24 9 0 — 0 3 Replacing s ystem components T o replace an Equipment In terface Module ( E IM ) or thermostat Follow stepsbelow to disconnect the thermostat andRedLINK accessories. See pages 5-6to re-link devices.
T H X9 3 21/9 4 21 P r e s t i g e ® IAQ a nd RF EI M 27 6 9 - 24 9 0 — 0 3 Specifications & replacement part s Operating Ambient T emperature Thermostat: 32 to120° F (0to 48.9°C) Portable Comfort Control: 32to 120°F (0to 48.
Regulator y inform ation FCC Compliance Statement ( Part 1 5. 1 9 ) (USA only) This device complies with P art 15 of the FCC Rules. Oper ation is subject to the following two conditions: 1 This device.
An important point after buying a device Honeywell THX9421 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Honeywell THX9421 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Honeywell THX9421 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Honeywell THX9421 you will learn all the available features of the product, as well as information on its operation. The information that you get Honeywell THX9421 will certainly help you make a decision on the purchase.
If you already are a holder of Honeywell THX9421, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Honeywell THX9421.
However, one of the most important roles played by the user manual is to help in solving problems with Honeywell THX9421. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Honeywell THX9421 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
