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Bryant T2-PAC manual

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Table of contents for the manual

  • Page 1

    Instal la tio n Instructio ns T2 - - P AC, T2 - - NAC T2 - -P HP , T2 - - NHP LEGACY t SERIE S THERMOS T A TS A07047 A07046 Legacy S eries Legacy S eries Pr ogram mab le Th ermos tat Non- - Pr ogramm abl e Th ermost at Designed and Assembl ed in the U.S. A. NOTE : Rea d the e ntire in stru ctio n ma nu al b efo re star ting th e ins talla tion . US[...]

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    1 T ABLE OF CON TENTS P AGE SAFETY CONSIDERA TI ONS 2 ................................ INST ALLA TION CONSIDERA TI ONS 4 .......................... INST ALLA TION 5 ........................................... Step 1 — T herm ostat Lo catio n 5 ............................... Step 2 — In stall Therm ostat 5 .................................. Ste[...]

  • Page 4

    2 SAFE TY CONS IDE RA T IONS Read and foll ow manufacturer inst ructi ons carefull y . Fol low all local el ectri cal codes during inst all ation. Al l wi ring must confor m t o local and nati onal elect rical co de s. Impr op er wirin g or ins tallatio n ma y da ma ge th erm osta t. Reco g niz e safe ty in for matio n. Th is is the s afe ty - - al[...]

  • Page 5

    3 INTRO DUCTIO N Bryant ’ s Legacy t Ser ies programmabl e thermos tats are wal l - -mounted, low - - v olta ge th erm osta ts whic h ma inta in roo m tem per atu re by co ntro lling th e operat ion of a heat ing and/or ai r condi tioni ng syst em. Bot h heat pump and air co nd ition er mo de ls a re av aila ble , each in programmabl e and non - [...]

  • Page 6

    4 INST ALLA TION CONSIDERA TIONS Models There a re four model s in the Legacy Seri es: programmabl e and non - -programmable, AC an d HP . M o de ls T2 - - P A C an d T2 - - NA C are d es ign ed for A C sys tem s, c on tro lling on e stage of cooling and one stage of heati ng. They wil l not operate a heat pump. Models T2 - - PHP and T2 - - NH P ar[...]

  • Page 7

    5 INST ALLA TION Step 1 — Thermostat Location S Approxi mate ly 5 ft (1. 5m) fr om floor . S Close to o r in a freq uen tly u sed ro om , prefe rab ly on a n ins ide p artitio n - ing wa ll. S On a section of wall wi thout pi pes or duct work. Therm ostat shoul d NOT be mounted S Cl ose to a w indow , on an out side wa ll, or next to a door l ead[...]

  • Page 8

    6 b. Di sconnect wir es from exist ing thermost at, one at a tim e. Be careful not to allo w wires to fall ba ck in to the w all. c. As each w ire i s disconnect ed, r ecord wir e color and t ermi nal marking. d. Dis card or recycl e old ther mostat. ENVIRONMENT AL HAZARD Failur e to follo w this ca utio n ma y resu lt in env iro nm en tal dam ag e[...]

  • Page 9

    7 A07153 Fi g. 1 - - Backp lat e Moun tin g 5. Dri ll f our 3/16 - - in. mount ing holes in wall wher e marked. 6. S ecure mounti ng base to w all w ith four s crews and anchors provided. T o avoid uni ntended bending of wal l plat e plas tic , al l four screw s and anchors must be u s e d. Make s ure all wires ext end through hol e in mount ing ba[...]

  • Page 10

    8 7. Adjus t lengt h and rout ing of each wi re to r each proper t erminal and con- nector block on mounti ng base wi th 1/4 - -in. ( 6 mm) of ext ra wi re. St rip onl y 1/4 i n. of i nsulat ion fr om each wir e to prevent adjacent wi res from shor ting toget her when connected. S ee Fig. 2. A07155 Fi g. 2 - - Secur e Wi r es to T ermin al St rip 8[...]

  • Page 11

    9 O/B - reversing valv e Y1 - Cooling Low Stage Rc - 24 VAC, from cooling equipment Rh - 24 VAC, from heating equipment W - Heating C - Common 24 VAC G - Fan Y/Y2 - Cooling High or Single Stage A09271 Fi g. 3 - - T ermi nal De sign ation s ELECTRICAL O PERA TION HAZA RD Failur e to follo w this ca utio n ma y resu lt in e qu ipm en t da ma ge o r i[...]

  • Page 12

    10 A07158 Fi g. 4 - - Attach Th ermos tat to Backp late 11. Close t hermost at assem bly making s ure pins on back of ci rcuit board align wit h sockets in connect or . 12. T urn O N power t o unit . When power i s appli ed, all di splay i cons are li t f or 2 seconds t o t est the display . Fol lowi ng this , the equi pment t ype for whi ch the th[...]

  • Page 13

    11 and thei r fact ory default setti ngs. N ot all numbers are used in the Legacy Ser ies because not all options are avail able in this ser ies - - and numbering is consist ent across the T1, T2, and T6 t hermostat li nes. Co nfig ur at io n Opti ons - - Summa ry : Opti on 01 - - Equi pment type Optio n 0 3* - - Fahr en heit/Ce ntig rad e Optio n [...]

  • Page 14

    12 T o Ent er t he Co nfig ura ti on Mo de: Pr ess and hol d the F AN key f or about 10 seconds until t he displ ay changes so that only t wo pairs of digi ts are show ing. T he left (programmabl e versi on) or the l ar ge upper (non - -programmabl e versi on) display s hows the configur ation number and the ri ght (progr ammable versi on) or smal [...]

  • Page 15

    13 Opt ion 03 - - Fah ren h eit/ Cent igrad e Selec tion s: F = Fahrenhei t — Defaul t is Fahr enheit. C = Cen tigra de . Sel ects temperat ure measurement unit s. Opti on 04 - - Fan (G) ON with W outpu t Selec tion s: OF = G no t en ergize d with W — This is d efa ult. ON = G ener gized wit h W . This s electi on determines whet her the fan (G[...]

  • Page 16

    14 H — R eversi ng valve output (O/ W2/ B) i s ener gized when HE A T mode i s sel ected. C — R eversi ng valve output (O/W2/ B) i s ener gized when C OOL mode is s elected. Default is C. Opt ion 11 - - Mi nimum De adba nd Be tw ee n He a ting And Co o ling Selec tion s: 01 thr ough 06 — Defaul t i s 02. Sets the min imu m allo wab le nu mb e[...]

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    15 Option 13 - - Ro om Air T emperature Offset Selec tion s: - - 5t o5 _ F— D e f a u l ti s 0 . Thi s option sel ects the number of degrees F to be added to the dis played temp er atu re to ca libra te or d elib era tely misc alib rate th e m ea sure d ro om temperat ure. Optio n 15 - - A uto C hange ov er A v a ilability Selec tion s: O N—T h[...]

  • Page 18

    16 Option 1 8 - - Ba cklight C onfig urat ion Selec tion s: ON, OF — Default is OF . When ON i s sel ected and the thermostat is not batter y operated a low level conti nuous displ ay backlight is al ways on. W ith OF sel ected, the backl ight is only on for a short t ime after the door is opened or a key i s pressed. Cont inuous ba ck ligh t is [...]

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    17 Optio n 26 - - Minimum Co oling Setpoint Selec tion s: 52 _ Ft o9 0 _ F— D e f a u l ti s5 2 _ F. Set s the l owest cool ing set point avai labl e to the us er . Option 2 7 - - Ma ximum Heating Setpoint Selec tion s: 50 _ Ft o8 8 _ F— D e f a u l ti s8 8 _ F. Set s the hi ghest heat ing setpoi nt avai lable t o the user . Option 99 - - Reset[...]

  • Page 20

    18 St ep 4 — Check T hermos tat Op eration The Le ga cy Ser ies the rmo sta ts hav e a b uilt - - in ins taller te st cap ab ility . Use it to check thermost at and equipment operat ion wi thout del ays or set point adjustm ents to forc e he atin g or co olin g . T o enter the I nstal ler T est mode, use the s ame process as is used to enter Inst[...]

  • Page 21

    19 Check li st 1. Run equi pment t hrough sever al heati ng and cooli ng cycles to ensure proper operati on. T o operate t he thermost at i n its normal operati ng mode, cons ult the O wne r ’ s Manu al. 2. If the equipment is to be left in operat ion, the s etpoint s, operati ng mode, and possi bly progr am schedule mus t be proper ly sel ected.[...]

  • Page 22

    20 FEA TURE S AND ACCE SS ORIE S Home , A way , Slee p (pr ogrammabl e mode ls onl y) Thi s feature pr ovides thr ee button select ions whi ch select from three predetermi ned pair s of heat and cool setpoint s. In programmed versions, one of these t hree choices can be sel ected for any pr ogrammed peri od. T o change these set ti ngs, a temperat [...]

  • Page 23

    21 Door Swi tc h When the door is opened, the displ ay changes f rom i ts norma l oper ati on view . The lar ge temperatur e displ ay disappears so it wi ll be avai labl e for ot her user funct ions. If the door i s lef t open for 3 minut es, t he dis play rever ts t o normal oper ati on. Mounti ng Opt ions For those i nst alla tions requi ring i t[...]

  • Page 24

    22 OPE RA TIO NAL AND CO NNECTI ON INFO RMA TI ON Rc/R h Co nn ectio ns For i nstal lat ions having a separat e 24V AC tr ansformer f or heati ng and cooling, the R connect ion can be separ ated int o two connect ions, one for each tr ansformer . T his allo ws isola tion b etw een th e two tra nsfo rm ers to be p res erv ed . T o sep ar ate Rc from[...]

  • Page 25

    23 Minimum On Tim er Once the e quipment has been t urned on, it must r emain on for 3 minutes . A change in m od e o r se tpo int will c an ce l this time r . Cycle T im er Based on the sel ection of 2, 4, or 6 cycles per hour , t his ti mer is set t o 30, 15, or 10 minut es. T his much ti me must el apse fr om the st art of one cycle before anoth[...]

  • Page 26

    24 T a ble 1 – Out puts Equi p Conf ig Tst a t Model COOL STG 1 COOL STG 2 HEAT STG 1 HEAT STG 2 HEAT STG 3 EM HEAT SS AC Opt 1 = AC T 2 --- P A C T 2 --- N A C T 2 --- P H P T 2 --- N H P Y --- --- W --- --- --- --- --- --- SS HP Opt 1 = HP RVS = O Opt 1 0 = C T 2 --- P H P T 2 --- N H P Y, O/B --- --- Y Y, W --- --- W SS HP Opt 1 = HP RVS = B O[...]

  • Page 27

    25 WIRING DIAG RAMS * * C wire not needed for batteries ** Remove jumper when using split power (Indoor and Outdoor units utilize separate transformers). Y1 Y/Y2 W G Rh Rc C C G R R W Y COM Y ** A12246 Fi g. 5 - - Sin gle Sp eed A/C Th erm ostat T ypical In stal lati on[...]

  • Page 28

    26 WIRING DIAG RAMS (cont. ) * * C wire not needed for batteries ** Remove jumper when using split power (Indoor and Outdoor units utilize separate transformers). Y1 Y/Y2 ** A12238 Fi g. 6 - - Sin gle Sp eed HP Th ermost at T yp ical In stall ati on[...]

  • Page 29

    27 WIRING DIAG RAMS (cont. ) Single-Stage Single-Stage Therm ostat Furnace Air Conditioner O/B Heat W W Y/Y2 Y Y Fan G G 24VAC Hot Heating Rh R 24VAC Hot Cooling Rc R * 24VAC Comm on C COM COM Cool * Indicates connection may not be required/available. Y1 A09246 Fi g. 7 - - Sin gle- - stage Fu rnace wi th Air C ond iti oner an d S pl it P ower NOTE [...]

  • Page 30

    28 WIRING DIAG RAMS (cont. ) Furnace Air Conditioner Heat Stage 2 O/B W2 Heat Stage 1 W W/W1 Cool Stage 1 Y1 Y 1 Cool Stage 2 Y/Y2 Y/Y2 Y/Y2 Fan G G 24V A C Hot Heating Rh R R 24V A C Hot Cooling Rc DHUM 24V A C Comm on C COM C Y1 Thermostat (NA) * * Remove jumper when using split power (Indoor and Outdoor units utilize separate transformers). A122[...]

  • Page 31

    29 WIRING DIAG RAMS (cont. ) Furnace Heat Pump O RVS Cooling O/B W2 Heat Stage 3 (furnace) WW / W 1 W 2 * Heat/Cool Stage 1 Y1 Y1 Heat/Cool Stage 2 Y/Y2 Y/Y2 Y /Y2 Fan G G 24V A C Hot Heating Rh R R 24V A C Hot Cooling Rc DHUM 24V A C Comm on C COM C Y1 ** * Some heat pumps may designate W1. **Remove jumper when using split power (Indoor and Outdoo[...]

  • Page 32

    30 WIRING DIAG RAMS (cont. ) Fan Coil Air Conditioner O Remove J2 Jumper for heat staging Heat Stage 2 O/B W2 Heat Stage 1 W W 1 Cool Stage 1 Y1 Y1 Y1 Cool Stage 2 Y/Y2 Y/Y2 Y2 Fan G G 24V A C Hot Heating Rh R R 24V A C Hot Cooling Rc 24V A C Comm on C C C Thermostat * *Remove jumper when using split power (Indoor and Outdoor units utilize separate[...]

  • Page 33

    31 WIRING DIAG RAMS (cont. ) Fan Coil Heat Pump OO RVS Cooling O/B W1 W1 Heat Stage 3 W W 2 Heat/Cool Stage 1 Y1 Y1 Y1 Heat/Cool Stage 2 Y /Y2 Y/Y2 Y/Y2 Fan G G 24V A C Hot Heating Rh R R 24V A C Hot Cooling Rc 24V A C Comm on C C C Thermostat *Remove jumper when using split power (Indoor and Outdoor units utilize separate transformers). * A12243 F[...]

  • Page 34

    32 THE RMOS T A T CONFIG URA TI ON RECO RD In staller _________________________ Model Number _____________________________ Date _______________________ A. Hard wa re Confi gura tion __________ Seal Hole I n Wal l B. Mode Settings __________ Mode ( Off, He at, Cool, Au to, Em Heat ) __________ Heat ing Set point V alue __________ Coolin g Setpoin t [...]

  • Page 35

    33 E. Conf iguration Op tions Op tion 01 ____ Equipm en t T ype Op tion 03* ____ Fahr enh eit/Ce ntig rade Sele ction Op tion 04 ____ Fa n (G) on wit h W/W1 Select ion Op tion 07 ____ Zoning Op tion 10 ____ Rever sin g V alve Op tion 11 ____ Minim um Deadban d Betwe en Heatin g and Coolin g Setpoin ts Op tion 12 ____ Sm art Recov ery ( progr am mab[...]

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    Copyright 2012 Bryan t Corporation 7310 W Morris St. I ndianapolis, I N 46231 I I T 2 --- P A C --- 0 5 R e p l a c e s : I I T 2 --- P A C --- 0 4 Edition Date: 05/ 12 Manufa cturer reserves the right to change , a t any time, specif ica tions a nd de signs without notice and wi tho ut obl ig ati o ns.[...]