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Bryant 581J - page 1
581J SINGLE P ACKAGE ROOFTOP GAS H EA TING/ELECTRIC CO OLING UNIT SIZE S 07, 08, 09 & 12 with PURON R (R- - 410A) REFIRG ERANT Installation Instructions NOTE : Read the entire instru ction manual before s tarting the ins tallation T ABLE OF CONTENTS SAFET Y CONSIDE RA TIONS 2 .................... INS T ALLA TION 7 .............................. ...
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Bryant 581J - page 2
2 SAF ETY CONSIDERA TIONS Impro per installatio n, adjus tment, alteration, s ervice, maintenance, o r use can cause explo sion , fire, electrical shock or other c onditions which m ay cause pe rsonal injury or property dam age. Consult a qual ifie d install er , service agenc y , or your di stributor or branch for infor mation or ass istance. The ...
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Bryant 581J - page 3
3 Horizontal Connections / Economizer V ertical Connections / Economizer C11110 Fig. 1 - - Unit Dimensional Drawing — S ize s 07- - 09 581J ...
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Bryant 581J - page 4
4 C11111 Fig. 1 - - Unit Dimensional Drawing — Sizes 07 - - 09 (cont.) 581J ...
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Bryant 581J - page 5
5 V ertical Connections / Economizer Horizontal Connections / Economizer C11112 Fig. 2 - - Unit Dimensional Drawing — S ize 12 581J ...
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Bryant 581J - page 6
6 C11113 Fig. 2 - - Unit Dimensional Drawing — Size 12 (c ont.) 581J ...
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Bryant 581J - page 7
7 INST ALLA TION Jobsite Survey Complete th e following checks before ins tallation. 1. Consult local building code s a nd the NEC (Nati onal Electrical Code) AN SI/NF P A 70 for special ins talla- tion requ irements. 2. Dete rmine unit l ocati on (from project pl ans) or selec t unit loca tion. 3. Chec k for possible overhea d obstructi ons which ...
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Bryant 581J - page 8
8 Ste p 2 — Plan for Seque nce of Unit I nsta llatio n The support me thod used for thi s unit will dic tate different sequence s for the steps of unit i nstalla tion. For exa mple , on curb- - mounted units, some accessories must be inst alled on th e unit before th e unit is placed on the curb . Revie w the following for re comme nded sequenc e ...
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Bryant 581J - page 9
9 581J*07-09 UNIT SIZE ROOFCURB ACCESSORY CRRFCURB003A01 CRRFCURB004A01 1’ - 2” [356] A 2’ - 0” [610] C11081 Fig. 4 - - Roof Curb Details — Size s 07- - 09 581J ...
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Bryant 581J - page 10
10 581J*12 581J*12 UNIT SIZE ROOFCURB ACCESSORY CRRFCURB003A02 CRRFCURB004A02 1’ - 2” [356] 2’ - 0” [610] C11082 Fig. 5 - - Roof Curb Details — Size 12 581J ...
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Bryant 581J - page 11
11 A-B 0.5” (13) B-C 1.0” (25) A-C 1.0” (25) MAXIMUM ALL OWABLE DIFFERENCE IN. (MM) C06110 Fig. 6 - - Un it Levelin g T olerances Ste p 5 — Field Fabr icat e Duc twork Cabinet re turn-ai r static pressure (a negat ive condition) shall not exceed 0.35 in. wg (87 P a ) with economizer or 0.45 in. wg (1 12 Pa) without e conomiz er . For vertic ...
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Bryant 581J - page 12
12 P o s i t i o n i n go nC u r b— Po sition unit on roof curb so that the followin g clearances are maintained : 1 / 4 in. (6.4 mm) clearance between the roof curb and the base rail inside the front and ba ck, 0.0 in. clearance betw een the roof cur b and the base rail insid e o n the duct end of the u nit. This will result in the distance be t ...
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Bryant 581J - page 13
13 4. Carefully l ift the hood a ssembly (with me tal t ray) through the filter access opening and ass e mble per the steps o utlined in Economizer H ood and T wo–Position Hood, below . Economize r Hood and T wo- - Position H ood — NOTE : If the pow er exhaust acces sory is to be ins talled on the unit , the hood shipped wit h the unit will not ...
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Bryant 581J - page 14
14 This unit is fac tory equippe d for use wit h Natural Gas fuel at e levat ions up to 2000 ft (610 m) above sea level . Unit may be fi eld c onverted for ope ration a t el evati ons above 2000 ft (610 m) and/ or for use with li quefied pe troleum fuel. See access ory kit installatio n instructio ns regar ding thes e access ories . NOTE : Furance ...
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Bryant 581J - page 15
15 EMBOSSMENT ST AINLES S STEEL FITTING SUPPORT BRACKET C08579 Fig. 17 - - Gas Lin e Piping Other hardware requi red to comple te the insta llat ion of the gas supply line will inc lude a manua l shutoff va lve, a sediment tra p (drip leg) and a ground - - joint uni on. A pressure re gulat or va lve ma y also be requi red (to c onvert gas pressure ...
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Bryant 581J - page 16
16 NOTE : Pressure test the ga s s upply system aft er t he gas supply piping is conne cte d t o the gas valve . The supply piping must be disconnec ted from t he gas valve duri ng the testing of t he pipi ng systems when test pressure is in exce ss of 0.5 psig (3450 Pa). Pressure test the gas supply piping system at pressures equal to or less than ...
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Bryant 581J - page 17
17 Step 12 — Ma ke E lectri cal Con n ectio ns ELECTRIC AL SHOCK HAZARD Failure t o follow this warning could re sult i n personal injury or dea th. Do not use gas piping as an e lec trical gr ound. Uni t cabine t must ha ve an unint errupted, unbroken ele ctri cal ground to minimize the poss ib ility of pers onal injury if an ele ctri cal fa ult ...
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Bryant 581J - page 18
18 Provide a ground- - fa ult and short - - c ircuit over - - c urrent prot ection device (f use or b reaker) p er NEC A rticle 440 (or loc al c odes). Re fer to uni t i nformati ve data pl ate for MOCP (Maxim um Over - - c urrent Protect ion) device siz e. All units e xcept 208/ 230-v unit s are fac tory wired for the voltage shown on the namepla ...
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Bryant 581J - page 19
19 convenience outle t; access is through th e unit’ s c ontrol box access p anel. See Fig. 26 . The prim ary le ads to the c onvenienc e outlet t ransformer are not factor y - - connected. Selection of primary p ower sou rce is a custo mer - - option. I f local cod es per mit, the trans former primary lead s can be con nected at the line- - side ...
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Bryant 581J - page 20
20 For wire runs up to 50 ft. (15 m ), use no. 18 A W G (America n W i re Gage) insula ted wire (35 _ C minimum). F o r5 0t o7 5f t .( 1 5t o2 3m ) ,u s en o .1 6 A W Gi n s u l a t e d wire (35 _ C mi nimum). For over 75 ft . (23 m), use no. 14 A WG insula ted wire (35 _ C minimum) . All wire sizes larger than no. 18 A WG c annot be di rectl y c o ...
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Bryant 581J - page 21
21 Perfect Hu mid i ty t Control C onnect ions Perfect Hu midity - - Spa ce RH C ont ro ller — NOTE : Per fect Humidity is a factory ins talled o ption which is only ava ila ble for unit s equipped with belt - - drive motors . The Per fect Humidity d ehumidif ication sys tem requires a field- - supp lied and - - ins talled space relativ e humidit ...
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Bryant 581J - page 22
22 HUMIDIST A T C11071 Fig. 32 - - T ypical Perfect Hu midity t D ehumid ification S ystem Hu midis tat W iring Rc Rh W1 G Y2 C O/W2/B Y1 OAT RRS SRTN HUM D1 D2 V+ Vg X* C G W2 W1 Y2 Y1 R Edge Programable Thermostat Unit CTB THERMOSTAT *Connection not required. Perfect Humidity™ FIOP C09501 Fig. 33 - - T ypical Rooftop Unit with Pe rfect H umidit ...
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Bryant 581J - page 23
23 R TU Op en Contr ol Syste m The R TU Open control is fact ory- - mount ed in the 48DC*D unit’ s mai n control box, to the left of the CTB. See Fig. 35. Fac tory wiring is com plete d t hrough harnesses conne cted t o the CT B. Fie ld connec tions for R TU Open sensors will be m ade at the Phoeni x connect ors on the R TU Open board. T he facto ...
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Bryant 581J - page 24
24 C11069 Fig. 35 - - R TU O pen System Contr ol Wiring Diagram 581J ...
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Bryant 581J - page 25
25 C11070 Fig. 36 - - R TU Open System Contr ol Wiring Diagram with Per fect Humidity t 581J ...
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Bryant 581J - page 26
26 T abl e 3 – RTU Open Co ntroll e r Inputs a nd Out puts POINT NAME B ACnet OBJ ECT NAM E TYPE OF I /O CON NECTION P IN NUM BE R( S) DEDICATE D INPUTS Spa ce T emp / Z one T e mp zone_tem p AI (10K Thermistor) J 2 0 --- 1 , 2 Suppl y Ai r T emper ature sa_ temp AI (10K T hermistor) J 2 --- 1 , 2 Ou tdoor Air T emp eratu re oa_temp AI (10K Therm ...
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Bryant 581J - page 27
27 EconoMi$e r2 — The R TU Open control i s used with EconoMi$er2 ( option or access ory) for outdoor air management. The damper pos ition is controlled d irectly by the R TU Open contro l; EconoMi$e r2 has no interna l logic devic e. Outdoor air m anagem ent funct ions can be enhanced with field- - installation o f these acces sor y contro l dev ...
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Bryant 581J - page 28
28 Co nn ect T- - 59: The T- - 59 spac e sensor require s a separat e, isola ted power supply of 24 V AC. See Fig. 42 for interna l connect ions at the T - - 59. Connec t t he SEN terminal (BLU ) to R TU O pen J2 0 - - 1. Con nect the C OM terminal (B RN) to J 20 - - 2. Conn ect the SET ter minal (S TO or BLK) to J20- - 3. OR SET SEN OPB COM- PWR+ ...
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Bryant 581J - page 29
29 CO VER REMO VED SIDE VIEW C07135 Fig. 45 - - O utdoor A ir Quali ty Sens or Cover Wiri ng the Out door Ai r CO 2 Se nsor: A dedicated power supply i s required for thi s sensor . A t wo- - wire cable is required t o wire the dedic ated power supply for the sensor . The two wires should be connecte d to the power supply and term inal s 1 and 2. T ...
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Bryant 581J - page 30
30 Relative Humidity Sensor (Polarized Male Connector ) J4-1 or J4-4 + 24 VDC Supply Voltage J4-2 or J4-5 (-) 4 to 20 mA Cu rrent Loop Output to RTU-OPEN 4-20 VAC GND 0-5V mA or or VDC 0-1 0V SPAN ZERO C10839 Fig. 48 - - Duct Relative Humidity Sensor T ypical Wiring Humidistat: Use of a fiel d- - supplie d humidistat provi des the R TU Open in sigh ...
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Bryant 581J - page 31
31 Com munica tio n W iring - - Pr otocols Genera l — Protocols are the com munica tion l anguages spoken by control devi ces. The m ain purpose of a protoc ol i s to communi cate infor mation in the mos t ef ficient method pos sible. Dif ferent pr otocols exist to pro vide dif ferent kinds of informat ion for different a pplica tions. In the BAS ...
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Bryant 581J - page 32
32 Loc al Access BACvi ew 6 H andhe ld: The BAC view 6 is a keypad/di splay interface us ed to connect to the R TU Open to access the control i nformat ion, rea d sensor values, a nd test the R TU, see Fig. 52. This is an accessor y interface that does n ot come with the R TU Open con troller and can o nly be us ed at the unit. Conn ect the BACview ...
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Bryant 581J - page 33
33 T able 4 – LEDs The L EDs on the R T U Open show the status of ce rtai n functions If th is LE D i s on ... Statu s is... Power R TU Open has power Rx RTU O pen is receiv ing data f rom the network segm ent Tx RTU O pen i s transmittin g data ov er the netw ork segm ent DO# The digital output is active The Run and Error LEDs indicate contr ol ...
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Bryant 581J - page 34
34 Ret urn Air Ent halpy Se nsor — Mount the return - - a ir ent halpy sensor (33CS ENTSEN) in the return- - air sectio n of the econo mizer . The return air sensor is wired to the e nthal py controll er (33CSENTHSW). See Fig. 54. GRA BLK RED – 4-20 Main + VDC Out – 4-20 Main Out + 24-36 VDC In LOW GND 24V 7 CTB ECON (RTU Open: to J2-6) PL6-1 ...
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Bryant 581J - page 35
35 take s the a ppropriate act ion to shut down fa ns and blowers, cha nge over ai r handli ng systems, notify the fire alarm contr ol panel, etc. The sens or uses a process called dif ferential sen sing to prevent gra dual environm ental c hanges from triggering false ala rms. A rapid change in environme ntal condi tions, such as s moke from a fir ...
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Bryant 581J - page 36
36 Return Air Sampling T ube C08129 Fig. 59 - - Return Air Sampling T ube Location Completing Installation of Return Air Smoke Sensor: 1. Unscrew the two screws holdi ng the Re turn Air Sensor detect or plate. See Fig. 60. Save the scre ws. 2. Rem ove the Re turn Air Sensor and its det ect or plate . 3. Rotate the det ector pla te so the sensor is ...
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Bryant 581J - page 37
37 T able 5 – U nit W ire/Fu se or HAC R Br eaker S izing Da ta UNI T NOM . V --- P h --- H z IFM TYPE COMB USTIO N FAN MOTOR FLA POWER EXHA UST FLA NO C .O. or U NPWR C .O. NO P .E . w/ P .E. (pwr d fr / un it) MCA FUSE or HACR BRKR DISC. SIZE MCA FUSE or HACR BRKR DISC. SIZE FLA LRA FLA LRA 581J*07 208/230 - - - 3 - - - 60 STD 0.48 3.8 32.0 50 ...
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Bryant 581J - page 38
38 T abl e 5 — Unit Wire /F use or H ACR Breake r Siz i ng Data (c ont) UNI T NOM . V --- P h --- H z IFM TYPE COMB USTIO N FAN MOTOR FLA POWER EXHA UST FLA w/ P WRD C.O . NO P .E . w/ P .E . (pwrd f r/ un it) MCA FUSE or HACR BRKR DISC. SIZE MCA FUSE or HACR BRKR DISC. SIZE FLA LRA FLA LRA 581J*07 208/230 - - - 3 - - - 60 STD 0.48 3.8 36.8 50 37 ...
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Bryant 581J - page 39
39 Legend and Notes for T able 5 LEG END: BRKR - - - Circuit breaker CO - - - Conve nient o utl et DISC - - - Discon ne ct FLA - - - Full loa d a mp s LRA - - - Loc ked ro tor a mps MCA - - - Min imum cir cuit amp s P E --- P o w e r e x h a u s t PWRD CO - - - P owered conve nient out let UNP WR C O - - - Unp owe red con ven ien t out let NOT ES : ...
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Bryant 581J - page 40
40 Economizer 2 Position Damper Unit Without Economizer o r 2 Position Damper C10150 Fig. 62 - - Ec onoMi$er t IV Wir ing Ste p 13 — Adjust Fac tory- -Installe d Options Sm oke Det ectors — Smoke detec tor(s) will be connec ted at the Controls Connect ions Board, at t ermina ls m arked “ Smoke Shutdown”. Remove jumpe r JMP 3 when rea dy to ...
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