Bryant 551J Installation Instructions Manual
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Bryant 551J Installation Instructions Manual

Bryant 551J Installation Instructions Manual

Single package rooftop cooling only sizes 04-06 with puron (r-410a) refirgerant
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551J
SINGLE PACKAGE ROOFTOP
COOLING ONLY
SIZES 04 - - 06 with PURON
NOTE: Read the entire instruction manual before starting
the installation

TABLE OF CONTENTS

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R
(R- -410A) REFIRGERANT
Installation Instructions
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SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service,
maintenance, or use can cause explosion, fire, electrical
shock or other conditions which may cause personal
1
injury or property damage. Consult a qualified installer,
service agency, or your distributor or branch for
5
information or assistance. The qualified installer or
5
agency must use factory- - authorized kits or accessories
5
when modifying this product. Refer to the individual
instructions packaged with the kits or accessories when
6
installing.
6
Follow all safety codes. Wear safety glasses and work
8
gloves. Use quenching cloths for brazing operations and
8
have a fire extinguisher available. Read these instructions
thoroughly and follow all warnings or cautions attached to
9
the unit. Consult local building codes and appropriate
national electrical codes (in USA, ANSI/NFPA70,
9
National Electrical Code (NEC); in Canada, CSA C22.1)
for special requirements.
It is important to recognize safety information. This is the
safety- - alert symbol
unit and in instructions or manuals, be alert to the
potential for personal injury.
Understand the signal words DANGER, WARNING,
CAUTION, and NOTE. These words are used with the
safety- - alert symbol. DANGER identifies the most serious
hazards which will result in severe personal injury or
death. WARNING signifies hazards which could result in
personal injury or death. CAUTION is used to identify
unsafe practices, which may result in minor personal
injury or product and property damage. NOTE is used to
highlight suggestions which will result in enhanced
installation, reliability, or operation.
. When you see this symbol on the

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Summary of Contents for Bryant 551J

  • Page 1: Table Of Contents

    551J SINGLE PACKAGE ROOFTOP COOLING ONLY SIZES 04 - - 06 with PURON (R- -410A) REFIRGERANT Installation Instructions SAFETY CONSIDERATIONS NOTE: Read the entire instruction manual before starting the installation Improper installation, adjustment, alteration, service, TABLE OF CONTENTS maintenance, or use can cause explosion, fire, electrical shock or other conditions which may cause personal SAFETY CONSIDERATIONS .
  • Page 2 WARNING WARNING PERSONAL INJURY AND ENVIRONMENTAL ELECTRICAL SHOCK HAZARD HAZARD Failure to follow this warning could cause personal Failure to follow this warning could cause personal injury or death. injury or death. Before performing service or maintenance operations Relieve pressure and recover all refrigerant before on unit, turn off main power switch to unit and install system repair or final unit disposal.
  • Page 3 Vertical Connections / Economizer Horizontal Connections / Economizer C10057 Fig. 1 - - Unit Dimensional Drawing...
  • Page 4 C10058 Fig. 1 - - Unit Dimensional Drawing (cont.)

  • Page 5: Installation

    INSTALLATION Do not install unit in an indoor location. Do not locate air inlets near exhaust vents or other sources of contaminated Jobsite Survey air. Complete the following checks before installation. Although unit is weatherproof, avoid locations that permit water from higher level runoff and overhangs to fall onto 1.

  • Page 6: Step 3 - Inspect Unit

    Pad- - mounted installation — Step 4 — Provide Unit Support Prepare pad and unit supports Roof Curb Mount — Check and tighten the bottom condensate drain Accessory roof curb details and dimensions are shown in connection plug Fig. 3. Assemble and install accessory roof curb in Rig and place unit accordance with instructions shipped with the curb.
  • Page 7 D ALT ROOF CURB CONNECTOR CONTROL ACCESSORY UNIT SIZE DRAIN POWER ACCESSORY PKG. ACCY. POWER HOLE 1’-2” CRRFCURB001A01 [356] 551J*04-06 CRBTMPWR003A01 ” [19] NPT 2’-0” 1’-9 ” 1’-4” ” ” [12.7] ” [12.7] CRRFCURB002A01 [610] [551] [406] [44.5] CRBTMPWR004A01 ” [31.7] NOTES: 1.

  • Page 8: Step 5 - Field Fabricate Ductwork

    For units with accessory electric heaters: Horizontal applications require a minimum clearance to combustible surfaces of 1- - in (25 mm) from duct for first 12- - in (305 mm) away from unit. Vertical applications do not require a minimum clearance around ductwork. Step 6 —...

  • Page 9: Step 7 - - Convert To Horizontal And Connect Ductwork

    Positioning on Curb — Do not cover or obscure visibility to the unit’s informative data plate when insulating horizontal ductwork. Position unit on roof curb so that the following clearances Step 8 — Install Outside Air Hood are maintained: in. (6.4 mm) clearance between the roof curb and the base rail inside the front and rear, 0.0 in.
  • Page 10 SCREEN SEAL STRIP RETAINER HOOD TOP HOOD SIDE SEAL STRIP SIDE SEAL STRIP PANEL SCREEN TRACKS HOOD SIDE OUTDOOR AIR INLET SCREEN OUTDOOR-AIR HOOD – UNASSEMBLED SIDE PANEL CAULK HERE HOOD TOP INDOOR INDOOR COIL COIL ACCESS ACCESS PANEL PANEL HOOD SIDE C06025...

  • Page 11: Step 9 - Install External Condensate Trap And Line

    Step 9 — Install External Condensate Trap Step 10 — Make Electrical Connections and Line WARNING The unit has one -in. condensate drain connection on the end of the condensate pan and an alternate connection ELECTRICAL SHOCK HAZARD on the bottom. See Fig. 13. Unit airflow configuration Failure to follow this warning could result in personal does not determine which drain connection to use.
  • Page 12 Units Without Factory- - Installed Disconnect — Units Without Disconnect Option When installing units, provide a disconnect switch per 1-ph Belt Drive IFM NEC (National Electrical Code) of adequate size. Direct Drive IFM Disconnect sizing data is provided on the unit informative plate.
  • Page 13 Non- - powered type: This type requires the field Pwd-CO Transformer installation of a general- - purpose 125- - volt 15- - A circuit Convenience Outlet powered from a source elsewhere in the building. Observe GFCI national and local codes when selecting wire size, fuse or breaker requirements and disconnect switch size and Pwd-CO location.
  • Page 14 RESET button to clear the tripped condition. System. Factory- - Option Thru- - Base Connections — Thermostat — Install a Bryant- - approved accessory thermostat according This service connection kit consists of a - - in electrical bulkhead connector and a - - in electrical bulkhead to installation instructions included with the accessory.
  • Page 15 NOTE: If thru- - the- - bottom connections accessory is Typical Central used, refer to the accessory installation instructions for Thermostat Terminal information on routing power and control wiring. Connections Board Heat Anticipator Settings — Set heat anticipator settings at 0.14 amp for the first stage and 0.14 amp for second- - stage heating, when available.
  • Page 16 DISCONNECT EMT OR RIGID CONDUIT SINGLE CENTER MANUAL RESET CONTROL MOUNTING (FIELD-SUPPLIED) POINT BOX POST LIMIT SWITCH LOCATION HEATER COVERS BUSHING SINGLE POINT BOX MOUNTING SCREWS DRIP BOOT BRACKET MOUNTING SCREWS POWER WIRES SINGLE POINT FOAM MAIN BRACKET AND HEATER HEATER HEATER BUSHING...
  • Page 17 Smoke Detectors — Smoke detectors are available as factory- - installed options on 551J models. Smoke detectors may be specified for Supply Air only or for Return Air without or with economizer or in combination of Supply Air and Return Air.
  • Page 18 The sensor uses a process called differential sensing to Return Air Detector module (shipping position shown)* prevent gradual environmental changes from triggering false alarms. A rapid change in environmental conditions, such as smoke from a fire, causes the sensor to signal an alarm state but dust and debris accumulated over time Controller module does not.
  • Page 19 Completing Installation of Return Air Smoke Sensor: 1. Unscrew the two screws holding the Return Air Sensor detector plate. See Fig. 34. Save the screws. 2. Remove the Return Air Sensor and its detector plate. 3. Rotate the detector plate so the sensor is facing outwards and the sampling tube connection is on the bottom.
  • Page 20 RTU- - MP control system — The RTU- - MP control is factory- - mounted in the 551J unit’s main control box, to the left of the CTB. See The RTU- - MP controller, see Fig. 36, provides expanded Fig. 37. Factory wiring is completed through harnesses stand- - alone operation of the HVAC system plus connected to the CTB.
  • Page 21 C10044 Fig. 38 - - RTU- - MP System Control Wiring Diagram...
  • Page 22 Table 3 – RTU- - MP Controller Inputs and Outputs BACnet OBJECT CONNECTION PIN POINT NAME TYPE OF I/O NAME NUMBERS INPUTS Space Temperature Sensor sptsens AI (10K Thermistor) J20---1, 2 Supply Air Temperature AI (10K Thermistor) J2---1, 2 Local Outside Air Temperature Sensor oatsens AI (10K Thermistor) J2---3, 4...
  • Page 23 Outdoor Air Temperature (OAT) Sensor - - The OAT is factory- - mounted EconoMi$er2 (FIOP accessory). It is a nominal 10k ohm thermistor attached to an eyelet mounting ring. EconoMi$er2 - - The RTU- - MP control is used with RED(+) EconoMi$er2 (option or accessory) for outdoor air WHT(GND)
  • Page 24 Locate the enthalpy control in the economizer next to the J20-1 Actuator Motor. Locate two GRA leads in the factory harness and connect the gray lead labeled “ESL” to the terminal labeled “LOW”. See Fig. 45. Connect the J20-2 enthalpy control power input terminals to economizer Jumper actuator power leads RED (connect to 24V) and BLK (connect to GND).
  • Page 25 requirements and terminal locations. See Fig. 47 for IAQ Sensor typical CO sensor wiring schematic. J4-2 J4-3 24 VAC C08462 Fig. 48 - - RTU- - MP / Indoor CO Sensor (33ZCSENCO2) Connections 0-10VDC Outdoor Air Quality Sensor (PNO 33ZCSENCO2 plus SIG COM 4-20mA weatherproof enclosure) —...
  • Page 26 Also set MENU Schedules occupancy source to DI On 551J units equipped with factory- - installed Smoke → → Detector(s), the smoke detector controller implements the on/off. Input 8 or 9 is recommended for easy of unit shutdown through its NC contact set connected to the installation.
  • Page 27 The Admin password is 1111 and cannot be changed. There is a 10 minute auto logout if a screen is idle. Contact your Bryant applications engineer for details The LEDs indicate if the controller is speaking to the on navigation and screen content.
  • Page 28 Format the RTU ---MP . Download memory to the RTU ---MP . Replace the RTU ---MP . NOTE: Contact your Bryant applications engineer for details on configuration of RTU- - MP, operating sequences and troubleshooting information, as well as details on...
  • Page 29 Table 5 Unit Wire/Fuse or HACR Breaker Sizing Data ELEC. HTR P .E. NO C.O. or UNPWR C.O. NO P .E. w/P .E. (pwrd fr/unit) FUSE FUSE DISC. SIZE DISC. SIZE CRHEATER*** (KW) HACR HACR BRKR BRKR NONE 29.2 31.1 101A00 3.3/4.4 15.9/18.3...
  • Page 30 Table 5 Unit Wire/Fuse or HACR Breaker Sizing Data (cont) ELEC. HTR P .E. w/ PWRD C.O. NO P .E. w/P .E. (pwrd fr/unit) FUSE FUSE DISC. SIZE DISC. SIZE CRHEATER*** (KW) HACR HACR BRKR BRKR NONE 34.0 35.9 101A00 3.3/4.4 15.9/18.3 35.1/38.1...
  • Page 31 Table 5 Unit Wire/Fuse or HACR Breaker Sizing Data (cont) ELEC. HTR P .E. NO C.O. or UNPWR C.O. NO P .E. w/P .E. (pwrd fr/unit) FUSE FUSE DISC. SIZE DISC. SIZE CRHEATER*** (KW) HACR HACR BRKR BRKR NONE 36.1 38.0 101A00 3.3/4.4...
  • Page 32 Table 5 Unit Wire/Fuse or HACR Breaker Sizing Data (cont) ELEC. HTR P .E. w/PWRD C.O. NO P .E. w/P .E. (pwrd fr/unit) FUSE FUSE DISC. SIZE DISC. SIZE CRHEATER*** (KW) HACR HACR BRKR BRKR NONE 40.9 42.8 101A00 3.3/4.4 15.9/18.3 40.9/40.9 60/60...
  • Page 33 Table 5 Unit Wire/Fuse or HACR Breaker Sizing Data (cont) ELEC. HTR P .E. NO C.O. or UNPWR C.O. NO P .E. w/P .E. (pwrd fr/unit) FUSE FUSE DISC. SIZE DISC. SIZE CRHEATER*** (KW) HACR HACR BRKR BRKR NONE 40.1 42.0 102A00 4.9/6.5...
  • Page 34 Table 5 Unit Wire/Fuse or HACR Breaker Sizing Data (cont) ELEC. HTR P .E. w/ PWRD C.O. NO P .E. w/P .E. (pwrd fr/unit) FUSE FUSE DISC. SIZE DISC. SIZE CRHEATER*** (KW) HACR HACR BRKR BRKR NONE 44.9 46.8 102A00 4.9/6.5 23.5/27.1 44.9/49.1...

  • Page 35: Step 11 - Adjust Factory- -Installed Options

    Legend and Notes for Table 5 LEGEND: Example: Supply voltage is 230-3-60 BRKR --- Circuit breaker AB = 224 v --- Convenient outlet BC = 231 v --- Direct drive AC = 226 v indoor fan motor DISC --- Disconnect (224 + 231 + 226) --- Full load amps Average Voltage =...

  • Page 36: Step 12 - Install Accessories

    Refer to the unit’s Service Manual for detailed Pre- - Start and Start- - Up instructions. Catalog No: II551J---02 Copyright 2010 Bryant Heating & Cooling Sysemts D 7310 W. Morris St. D Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 01/10 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

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