Instruction/ maintenance manual of the product 551J Bryant
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551J SINGLE P ACKAGE ROOFTOP COOLING ONL Y SIZ ES 04 - - 06 with PURON R (R - - 410A) RE FIRGERANT Installation Instructions NOTE : Read the entire instru ction manual before s tarting the ins tallation T ABLE OF CONTENTS SAFET Y CONSIDE RA TIONS 1 ..
2 ELECTRIC AL SHOCK HAZARD Failure t o follow this warning c ould ca use pe rsonal injury or dea th. Before performi ng service or mainte nance opera tions on unit, turn off main power switch t o unit and instal l lockout ta g. Ensure ele ctric al servic e to rooftop uni t agrees w ith vo ltage and amperag e lis ted on the unit rating pla te.
3 Horizontal Connections / Economizer V ertical Connections / Economizer C10057 Fig. 1 - - Unit Dimensional Drawing 551J j.
4 C10058 Fig. 1 - - Unit Dimensional Drawing (c ont.) 551J j.
5 INST ALLA TION Jobsite Survey Complete th e follo wing checks befo re ins tallation. 1. Consult local buildi ng codes and the NEC (National Electrical Code) AN SI /NF P A 70 for special installa- tion requ irements . 2. Det ermine uni t locat ion (from project pl ans) or sele ct unit loca tion.
6 Pad- - mou nted in st allatio n — Prepare pa d and unit supports Check a nd tighte n the bottom conde nsate drain connectio n plug Rig and pla ce uni t Convert unit to side duct c onnect ion arran.
7 NO TES: 1. Roof curb accesso ry is shipped disa ssembled. 2. Insu lated pane ls. 3. Dimensions in [ ] are in millimeters. 4. Roof curb: galvanized stee l. 5. At tach ductwork to cu rb (flang es of duct rest on curb ). 6. Se rvice cleara nce: 4 ft on each side.
8 A-B 0.5” (13) B-C 1.0” (25) A-C 1.0” (25) MAXIMUM ALL OWABLE DIFFERENCE IN. (MM) C06110 Fig. 4 - - Un it Levelin g T olerances Ste p 5 — Field Fabr icat e Duc tw ork Cabinet re turn-ai r static pressure (a negat ive condition) shall not exceed 0.
9 P o s i t i o n i n go nC u r b— Po sition unit on roof curb so that the follow ing clearances are maintained : 1 / 4 in. (6.4 mm) clearance between th e roof curb and the base rail inside the front and rear , 0.0 in. clearance betw een the roof curb and th e base r ail inside on the duct en d of th e unit.
10 SEAL STRIP HOOD TOP SEAL STRIP HOOD SIDE SCREEN RET AINER HOOD SIDE SCREEN TRACKS OUTDOOR AIR INLET SCREEN SEAL STRIP OUTDOOR-AIR HOOD – UNASSEMBLED HOOD SIDES AND TOP ASSEMBLED TRACKS FOR AIR INLET SCREEN HOOD SIDE HOOD TOP C07504 Fig.
11 Ste p 9 — Insta ll Exte rnal Conde nsate T rap and Line The uni t has one 3 / 4 -in. conde nsate drai n connec tion on the e nd of the conde nsate pan a nd an alterna te connecti on on the bottom. See Fig. 13. Unit airfl ow configura tion does not dete rmine which drain c onnecti on to use.
12 C 11 23 Disconnect per NEC 208/230-1-60 or Disconnect per NEC 11 13 13 23 L1 L2 L3 TB C IFC Direct Drive IFM 208/230-3-60 460-3-60 575-3-60 Units Without Disconnect Option Units With Disconnect Option L1 L2 L3 2 4 6 1 3 5 Optional Disconnect Switch Disconnect factory test leads; discard.
13 Convenience Outlet GFCI Pwd-CO F use Switch Pwd-CO T ransformer Control Box Access Panel C08128 Fig. 17 - - Convenience O utlet Location In st alling W eatherp r oof C over – A weathe rproof while-in-use cover for the factory-i nstall ed convenienc e outlets is now required by UL standa rds.
14 NOTICE Convenience Outlet Utilization Maximum Intermittent use : 15 Amps 2 to 3 Hours Maximum Continuous use : 8 Amps 24/7 50HJ542739 3.0 A9225 Fig. 20 - - Conv enien ce Outlet Ut ilization N otice La bel Duty Cycle: the uni t - - powere d conve nienc e outlet has a duty cycle limitation.
15 X C G W2 C W2 G W1 O/B/Y2 Y2 R W1 R Y1 Y1 T H E R M O S T A T (Note 1) (Note 2) Note 1: T ypical multi-function marking. Follow manufacturer’s configuration Instructions to select Y2. Note 2: Y2 to Y2 connection required on single-stage cooling units when integrated economizer function is desired.
16 DISCONNECT MOUNTING LOCA TION EMT OR RIGID CONDUIT (FIELD-SUPPLIED) SINGLE POINT BOX CENTER POST HEA TER COVERS HEA TER MOUNTING BRACKET HEA TER MODULE (LOCA TION 2) HEA TER MODULE (LOCA TION 1) SINGLE POINT BOX MOUNTING SCREW BRACKET AND CONDUIT DRIP BOOT MAIN CONTROL BOX CONTROL WIRE TERMINAL BLOCK MANUAL RESET LIMIT SWITCH C08134 Fi g.
17 Sm oke Det ectors — Smoke detec tors are avai lable a s factory - - i nstalle d options on 551J model s. Smoke detec tors ma y be spec ified for Supply Air only or for Return Air wit hout or with econom izer or i n combina tion of Supply Air and Return Air .
18 The sens or us es a process called dif ferential sens ing to prevent gra dual environm ental c hanges from trigge ring false ala rms. A rapid change in environm ental c onditions, such as s moke from a fire , causes the sensor t o signal an alarm state b ut dus t and debris accumulated over time does not.
19 Compl etin g Ins tall atio n of Return Air Smok e Sens or : 1. Unscrew t he two screws holdi ng the Re turn Air Sensor detect or plate. See Fig. 34. Save the screws. 2. Re move the Re turn Air Sensor and its det ector pl ate . 3. Rot ate the de tect or plate so t he sensor is facing outwards and the sampling t ube connec tion is on the bottom.
20 R TU- - MP c ontr ol system — The R T U- - MP controll er , see Fig. 36, provides expanded stand - - a lone opera tion of the HV AC system pl us connec tion and c ontrol through communica tion wit h several Building Automation System s (BAS) through popular thi rd - - pa rty network systems.
21 3 C10044 Fig. 38 - - RTU- - M P System Contr ol Wiring Diagram 551J j.
22 T abl e 3 – RTU- - M P Co ntroll er Inputs and O utputs POI NT N AM E BA Cne t OBJ ECT NAME TYPE OF I/O CON N ECTI ON PIN NUMB ERS INPU TS Space T em perature S ensor sptsens AI (10K T hermistor).
23 Outdoor Air T e mpera ture (OA T ) Sensor - - The OA T i s fact ory- - mounte d in the EconoMi$er2 (FIOP or access ory ). It is a n ominal 10 k ohm thermis tor attached to an eyelet moun ting ring . EconoMi$e r2 - - The R T U- - MP control is used wit h EconoMi$er2 (option or accessory) for outdoor air management.
24 SEN J20-1 J20-2 SEN SET Jumper J20-3 SET C08461 Fig. 43 - - RTU- - M P T - - 56 Sensor Connections Connect T - - 59 - - The T - - 59 space sensor require s a separat e, isola ted power supply of 24 V AC. S ee Fig. 44 for interna l connect ions at the T - - 59.
25 requirem ents and t ermina l loca tions. See Fig. 47 for typica l CO 2 sensor wiring schemat ic. 8 7 6 5 4 32 1 2 1 HG 24 V AC OR 24 VDC NC ALARM RELA Y CONT ACTS COM NO } 0-10VDC SIG COM 4-20mA + + - + - J3 J4 C08635 Fig.
26 On 551J unit s equi pped with fa ctory - - install ed Smoke Detector (s) , the smoke detecto r contro ller implements the unit shutdown through i ts NC cont act set conne cted to t he unit’ s CTB input. The FSD func tion is initiated via the smoke de tec tor ’ s Alarm NO c ontac t set.
27 SW3 Protocol Selection PROTOC OL DS8 DS7 DS6 DS5 DS4 DS3 DS2 DS1 BAC net M S/TP (Ma ster) Unused OF F OFF OFF ON OF F Select B au d Sele ct Bau d Modb us (Slave) Unused OF F OFF ON ON OFF Select Ba.
28 T able 4 – LEDs The LEDs on the R TU- - M P s how the status of certain f unction s If th is LE D is on ... Statu s is ... Power The R TU MP has power Rx The RTU MP is receiving data from the net.
29 T a b l e5U n i tW i r e / F u s eo rH A C RB r e a k e rS i z i n gD a t a UNI T N O M . V --- P h --- H Z IFM TY PE ELEC. HTR P. E . NO C .O. or U NPWR C.O. CRHEA TER*** NOM (KW) FLA FL A NO P .E. w/P .E. (pwrd fr /un it) MCA FUSE or HACR BRKR DISC.
30 T a b l e5U n i tW i r e / F u s eo rH A C RB r e a k e rS i z i n gD a t a( c o n t ) UNI T N O M . V --- P h --- H Z IFM TY PE ELEC. HTR P. E . w/ P WRD C.O . CRHEA TER*** NOM (KW) FLA FL A NO P .E. w/P .E. (pwrd fr /un it) MCA FUSE or HACR BRKR DISC.
31 T a b l e5U n i tW i r e / F u s eo rH A C RB r e a k e rS i z i n gD a t a( c o n t ) UNI T N O M . V --- P h --- H Z IFM TY PE ELEC. HTR P. E . NO C .O. or U NPWR C.O. CRHEA TER*** NOM (KW) FLA FL A NO P .E. w/P .E. (pwrd fr /un it) MCA FUSE or HACR BRKR DISC.
32 T a b l e5U n i tW i r e / F u s eo rH A C RB r e a k e rS i z i n gD a t a( c o n t ) UNI T N O M . V --- P h --- H Z IFM TY PE ELEC. HTR P. E . w/ PWRD C. O. CRHEA TER*** NOM (KW) FLA FL A NO P .E. w/P .E. (pwr d fr/u nit) MCA FUSE or HACR BRKR DISC.
33 T a b l e5U n i tW i r e / F u s eo rH A C RB r e a k e rS i z i n gD a t a( c o n t ) UNI T N O M . V --- P h --- H Z IFM TY PE ELEC. HTR P. E . NO C .O. or U NPWR C.O. CRHEA TER*** NOM (KW) FLA FL A NO P .E . w/P .E. (pwr d fr /unit) MCA FUSE or HACR BRKR DISC.
34 T a b l e5U n i tW i r e / F u s eo rH A C RB r e a k e rS i z i n gD a t a( c o n t ) UNI T N O M . V --- P h --- H Z IFM TY PE ELEC. HTR P. E . w/ P WRD C.O . CRHEA TER*** NOM (KW) FLA FL A NO P .E . w/P .E. (pwrd f r/u nit) MCA FUSE or HACR BRKR DISC.
35 Lege nd and Note s for T able 5 LEG END: BRKR - - - Circuit breaker CO - - - Conve ni ent o utl et DD - - - Direct dr ive ind oor fan motor DISC - - - Discon nect FLA - - - Full loa d a mps IFM - -.
36 Step 12 — In sta ll Acces sori es A vailable access ories in clude: Curb Thru - - ba se connec tion kit (must be i nstall ed before unit is set on curb) Elec tric he aters and singl e - - poi ng .
An important point after buying a device Bryant 551J (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Bryant 551J 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 Bryant 551J - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Bryant 551J you will learn all the available features of the product, as well as information on its operation. The information that you get Bryant 551J will certainly help you make a decision on the purchase.
If you already are a holder of Bryant 551J, 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 Bryant 551J.
However, one of the most important roles played by the user manual is to help in solving problems with Bryant 551J. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bryant 551J 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
