Bryant 581J series Installation Instructions Manual
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Bryant 581J series Installation Instructions Manual

Bryant 581J series Installation Instructions Manual

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581J
SINGLE PACKAGE ROOFTOP
GAS HEATING/ELECTRIC COOLING UNIT
SIZES 07, 08, 09, 11, 12 WITH PURON
NOTE: Read the entire instruction manual before starting
the installation

TABLE OF CONTENTS

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(R−410A) REFRIGERANT
Installation Instructions
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Summary of Contents for Bryant 581J series

  • Page 1: Table Of Contents

    581J SINGLE PACKAGE ROOFTOP GAS HEATING/ELECTRIC COOLING UNIT SIZES 07, 08, 09, 11, 12 WITH PURON (R−410A) REFRIGERANT Installation Instructions NOTE: Read the entire instruction manual before starting All Units ....... . the installation Convenience Outlets .

  • Page 2: Safety Considerations

    SAFETY CONSIDERATIONS WARNING Improper installation, adjustment, alteration, service, ELECTRICAL SHOCK HAZARD maintenance, or use can cause explosion, fire, electrical shock or other conditions which may cause personal Failure to follow this warning could cause personal injury or property damage. Consult a qualified installer, injury or death.

  • Page 3: Rated Indoor Airflow (Cfm)

    Rated Indoor Airflow (cfm) Model Number Full Load Airflow (cfm) The table to the right lists the rated indoor airflow used 581J*07A/C/G/J 2400 for the AHRI efficiency rating for the units covered in this 581J*07D/F/K/M 2400 document. 581J*08D/F/K/M 3000 581J*09D/F/K/M 3000 581J*11D/F/K/M 3000...
  • Page 4 C160140 Fig. 2 − Unit Dimensional Drawing — Sizes 07−09...
  • Page 5 C160141 Fig. 2 − Unit Dimensional Drawing — Sizes 07−09 (cont.)
  • Page 6 C13300A Fig. 3 − Unit Dimensional Drawing — Sizes 11 and 12...
  • Page 7 C13301A Fig. 3 − Unit Dimensional Drawing — Sizes 11 and 12 (cont.)

  • Page 8: Installation

    C08337 LOCATION DIMENSION CONDITION 48-in (1219 mm) Unit disconnect is mounted on panel 18-in (457 mm) No disconnect, convenience outlet option 18-in (457) mm Recommended service clearance 12-in (305 mm) Minimum clearance 42-in (1067 mm) Surface behind servicer is grounded (e.g., metal, masonry wall) 36-in (914 mm) Surface behind servicer is electrically non-conductive (e.g., wood, fiberglass) Special...

  • Page 9: Roof Mount

    products could enter the building, and at least 4 ft (1.2 m) Rig and place unit from any adjacent building (or per local code). Locate the Convert unit to side duct connection arrangement flue assembly at least 10 ft (3.05 m) from an adjacent Install field−fabricated ductwork at unit duct openings unit’s fresh air intake hood if within 3 ft (0.91 m) of same Install outdoor air hood...
  • Page 10 C13311 Fig. 5 − Roof Curb Details — Sizes 07−12...

  • Page 11: Slab Mount (Horizontal Units Only)

    Ducts passing through unconditioned spaces must be insulated and covered with a vapor barrier. If a plenum return is used on a vertical unit, the return should be ducted through the roof deck to comply with applicable fire codes. A minimum clearance is not required around ductwork. MAXIMUM ALLOWABLE DIFFERENCE IN.

  • Page 12: Positioning On Curb

    C06005 DIMENSIONS MAX WEIGHT UNIT 581J*07 1200 88.0 2235 44.0 1120 41.5 1055 581J*08 1420 88.0 2235 44.0 1120 49.5 1255 581J*09 1420 88.0 2235 44.0 1120 49.5 1255 581J*11/12 1665 88.0 2235 32.0 49.5 1255 NOTES: 1. SPREADER BARS REQUIRED — Top damage will occur if spreader bars are not used. 2.

  • Page 13: Step 8 - Install Outside Air Hood

    Field−supplied flanges should be attached to horizontal 6. Caulk the ends of the joint between the unit top panel duct openings and all ductwork should be secured to the and the hood top. flanges. Insulate and weatherproof all external ductwork, 7.

  • Page 14: Step 9 - Install Flue Hood

    Step 10 — Install Gas Piping Installation of the gas piping must be accordance with PANEL local building codes and with applicable national codes. In U.S.A., refer to NFPA 54/ANSI Z223.1 National Fuel INDOOR COIL ACCESS PANEL Gas Code (NFGC). In Canada, installation must be accordance with the CAN/CSA B149.1 and CAN/CSA B149.2 installation codes for gas burning appliances.

  • Page 15: Factory−Option Thru−Base Connections (Gas Connections)

    CAUTION LOW VOLTAGE CONDUIT CONNECTOR EQUIPMENT DAMAGE HAZARD Failure to follow this caution may result in damage to equipment. When connecting the gas line to the unit gas valve, the installer MUST use a backup wrench to prevent HIGH VOLTAGE damage to the valve.
  • Page 16 When installing the gas supply line, observe local codes pertaining to gas pipe installations. Refer to the NFPA 54/ANSI Z223.1 NFGC latest edition (in Canada, CAN/CSA 9” (229mm) min B149.1). In the absence of local building codes, adhere to the following pertinent recommendations: Thru-Curb Adapter Union 1.

  • Page 17: Step 11 - Install External Condensate Trap And Line

    MINIMUM PITCH 1” (25mm) PER BASE RAIL 10’ (3m) OF LINE 3˝ (76mm) OPEN VENT TO ROOF SEE NOTE DRAIN BURNER ROOF ORIFICE CURB DRAIN PLUG NOTE: Trap should be deep enough to offset maximum unit static difference. A 4” (102mm) trap is recommended. C11291 A93059 Fig.

  • Page 18: Units With Factory−Installed Non−Fused Disconnect

    Units Without Disconnect Option Equip GR Lug ELECTRIC DISCONNECT SWITCH COPPER WIRE ONLY Disconnect ALUMINUM WIRE Ground A93033 (GR) 208/230-3-60 Fig. 25 − Disconnect Switch and Unit 460-3-60 575-3-60 Units with Factory−Installed Non−Fused Disconnect — Units With Disconnect Option The factory−installed option non−fused disconnect (NFD) switch is located in a weatherproof enclosure located under the main control box (see Fig.

  • Page 19: Units Without Factory−Installed Non−Fused Disconnect

    Operation on improper line voltage or 12. Re−install the unit front panel. excessive phase imbalance constitutes abuse and may cause damage to electrical components. Such operation would invalidate any applicable Bryant warranty. NOTE: Check all factory and field electrical connections for tightness. Convenience Outlets —...
  • Page 20 DISCONNECT POWER UNIT CONVENIENCE OUTLET. LOCK−OUT AND TAG−OUT ALL POWER. Remove the blank cover plate at the convenience outlet; discard the blank cover. Loosen the two screws at the GFCI duplex outlet, until approximately -in (13 mm) under screw heads are exposed.

  • Page 21: Factory−Option Thru−Base Connections (Electrical Connections)

    System RACEWAY factory−installed RTU Open controller option. Thermostat — Install a Bryant−approved accessory 2−stage thermostat according to installation instructions included with the accessory. Locate the thermostat accessory on a solid wall in the conditioned space to sense average temperature in accordance with the thermostat installation instructions.

  • Page 22: Heat Anticipator Settings

    Heat Anticipator Settings — Perfect Humidityt System Control Connections Set heat anticipator settings at 0.14 amp for the first stage Perfect Humidity System − Space RH Controller — and 0.14 amp for second−stage heating, when available. NOTE: Perfect Humidity system factory−installed option which is only available for units Low Ambient Control (Factory Option) equipped with belt−drive motors.
  • Page 23 C160109 Fig. 33 − Typical Perfect Humidityt Dehumidification System Humidistat Wiring Programable Thermostat Unit CTB THERMOSTAT O/W2/B SRTN Perfect Humidity™ FIOP *Connection not required. C12743 Fig. 34 − Typical Rooftop Unit with Perfect Humidity Dehumidification System with a Programmable Thermostat...

  • Page 24: Rtu Open Controller System

    RTU Open Controller System The RTU Open controller is an integrated component of the Bryant rooftop unit. Its internal application programming provides optimum performance and energy efficiency. The The RTU Open controller is factory−mounted in the 558J RTU Open controller enables the unit to run in 100% unit’s main control box (see Fig.
  • Page 25 C160113 Fig. 36 − Typical RTU Open Controller Wiring Diagram...
  • Page 26 C160114 Fig. 37 − Typical RTU Open Controller Wiring Diagram Wiring Diagram with Perfect Humidityt System...

  • Page 27: Supply Air Temperature (Sat) Sensor

    Refer to the input configuration and accessory sections of the Factory Installed Option RTU Open Controls, Start-Up, Operation and Troubleshooting manual for more detail. The RTU Open controller requires the use of a Bryant space sensor. A standard thermostat cannot be used with the RTU Open system.

  • Page 28: Economi$Er2

    Connections Space Temperature (SPT) Sensors — Connect T−56: See Fig. 41 for T−56 internal connections. SPT sensors available from Bryant are resistive input Install a jumper between SEN and SET terminals as non-communicating (T55, T56, and T59) sensors. These illustrated. Connect T−56 terminals to the RTU Open sensors have a variety of options consisting of: timed controller at J20−1, J20−2 and J20−3 per Fig.

  • Page 29: Indoor Air Quality (Co 2 ) Sensor

    Connect T−59: The T−59 space sensor requires a To controller separate, isolated power supply of 24 VAC. See Fig. 43 for internal connections at the T−59. Connect the SEN terminal (BLU) to the RTU Open controller at J20−1. Connect the COM terminal (BRN) to J20−2. Connect the SET terminal (STO or BLK) to J20−3.

  • Page 30: Space Humidity Sensor Or Humidistat

    Space Humidity Sensor or Humidistat — Perfect Humidityt System Control Wiring: In units equipped with the Perfect Humidity system option there are two loose wires loose in the control box (one PNK and one PNK/BLK) used to control the dehumidification function of the unit.

  • Page 31: Smoke Detector/Fire Shutdown (Fsd)

    J4-1 or J4-4 + 24 VDC Supply Voltage J4-2 or J4-5 (-)4 to 20 mA Current Loop Output to RTU Open controller Relative Humidity Sensor (Polarized Male Connector) SPAN ZERO 4-20 GND 0-5V 0-10V C12756 Fig. 49 − Duct Relative Humidity Sensor Typical Wiring Humidistat: Use of a field−supplied humidistat provides Fan Status: The fan status accessory is a field−installed the RTU Open controller insight to the relative humidity...

  • Page 32: Communication Wiring − Protocols

    Protocols do not change the function of Contact your Bryant applications engineer for more a controller; just make the front end user different. detailed information on protocols, third party wiring, and networking.

  • Page 33: Local Access

    NOTE: Refer to the RTU Open Multi−Protocol Controller Controls, Start−Up, Operation and Troubleshooting manual for complete configuration of RTU Open controller operating sequences and troubleshooting information. Contact your Bryant applications engineer for details on configuration and troubleshooting of connected networks. Access Port...

  • Page 34: Outdoor Air Enthalpy Control

    Table 7 – LEDs The LEDs on the RTU Open Controller show the status of certain functions If this LED is on... Status is... Power The RTU Open controller has power The RTU Open controller is receiving data from the network segment The RTU Open controller is transmitting data over the network segment The binary output is active The Run and Error LEDs indicate control module and network status...

  • Page 35: Smoke Detectors

    To wire the return air enthalpy sensor, perform the Return Air Smoke Detector following: (as shipped) 1. Use a 2−conductor, 18 or 20 AWG, twisted pair cable to connect the return air enthalpy sensor to the enthal- py controller. 2. Connect the field−supplied RED wire to (+) spade connector on the return air enthalpy sensor and the (+) terminal on the enthalpy controller.
  • Page 36 Legend and Notes for Tables 8 and 9 LEGEND: Example: Supply voltage is 230‐3‐60 BRKR Circuit breaker C.O. Convenience outlet AB = 224 v DISC. Disconnect BC = 231 v Full load amps AC = 226 v Locked rotor amps Minimum circuit amps P .E.
  • Page 37 Table 8 – Unit Wire/Fuse or HACR Breaker Sizing Data − Single Speed Indoor Fan Motor NO C.O. or UNPWR C.O. w/ PWRD C.O. NO P .E. w/ P .E. (pwrd fr/ unit) NO P .E. w/ P .E. (pwrd fr/ unit) UNIT NOM.V-Ph-Hz TYPE...
  • Page 38 48HC 581J Table 8 – Unit Wire/Fuse or HACR Breaker Sizing Data − Single Speed Indoor Fan Motor (cont) NO C.O. or UNPWR C.O. w/ PWRD C.O. NO P .E. w/ P .E. (pwrd fr/ unit) NO P .E. w/ P .E. (pwrd fr/ unit) UNIT NOM.V-Ph-Hz TYPE...
  • Page 39 Table 9 – Unit Wire/Fuse or HACR Breaker Sizing Data − Two Speed Indoor Fan Motor NO C.O. or UNPWR C.O. w/ PWRD C.O. NO P .E. w/ P .E. (pwrd fr/ unit) NO P .E. w/ P .E. (pwrd fr/ unit) UNIT NOM.V-Ph-Hz TYPE...
  • Page 40 48HC 581J Table 9 − Unit Wire/Fuse or HACR Breaker Sizing Data − Two Speed Indoor Fan Motor (cont.) NO C.O. or UNPWR C.O. w/ PWRD C.O. NO P .E. w/ P .E. (pwrd fr/ unit) NO P .E. w/ P .E. (pwrd fr/ unit) UNIT NOM.V-Ph-Hz TYPE...

  • Page 41: Step 13 - Adjust Factory−Installed Options

    Unit Without Economizer or Economizer 2 Position Damper 2 Position Damper C160115 Fig. 58 − EconoMi$er IV Wiring Step 13 — Adjust Factory−Installed Options Flue Discharge Deflector Flue Exhaust Heat Shield Smoke Detectors — Low Ambient Controls Smoke detector(s) will be connected at the Controls Thermostat / Sensors Connections Board,...
  • Page 42 Catalog No: II581J-7-12-02 Printed in U.S.A. Copyright 2016 Bryant Heating & Cooling Systems Edition Date: 09/16 11-16A Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. Replaces: II581J-7-12-01...

  • Page 43: Start-Up Checklist

    START-UP CHECKLIST (Remove and Store in Job File) NOTE: To avoid injury to personnel and damage to equipment or property when completing the procedures listed in this start-up checklist, use good judgement, follow safe practices, and adhere to the safety considerations/information as outlined in the preceding sections of this Installation Instructions document.
  • Page 44 REPEAT PROCESS FOR 2 COMPRESSOR SYSTEMS Catalog No: II581J-7-12-02 Printed in U.S.A. Copyright 2016 Bryant Heating & Cooling Systems Edition Date: 09/16 11-16A Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

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