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Bryant 581J Installation Instructions Manual

Single package rooftop gas heating/electric cooling unit sizes 07, 08, 09 & 12 with puron (r--410a) refirgerant
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581J
SINGLE PACKAGE ROOFTOP
GAS HEATING/ELECTRIC COOLING UNIT
SIZES 07, 08, 09 & 12 with PURON
NOTE: Read the entire instruction manual before starting
the installation

TABLE OF CONTENTS

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(R- -410A) REFIRGERANT
Installation Instructions
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Summary of Contents for Bryant 581J

  • Page 1: Table Of Contents

    581J SINGLE PACKAGE ROOFTOP GAS HEATING/ELECTRIC COOLING UNIT SIZES 07, 08, 09 & 12 with PURON Installation Instructions NOTE: Read the entire instruction manual before starting the installation TABLE OF CONTENTS SAFETY CONSIDERATIONS ....

  • Page 2: Safety Considerations

    SAFETY CONSIDERATIONS Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock or other conditions which may cause personal injury or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance. The qualified installer or agency must use factory- - authorized kits or accessories when modifying this product.
  • Page 3 Vertical Connections / Economizer Horizontal Connections / Economizer C11110 Fig. 1 - - Unit Dimensional Drawing — Sizes 07- - 09...
  • Page 4 C11111 Fig. 1 - - Unit Dimensional Drawing — Sizes 07- - 09 (cont.)
  • Page 5 Vertical Connections / Economizer Horizontal Connections / Economizer C11112 Fig. 2 - - Unit Dimensional Drawing — Size 12...
  • Page 6 C11113 Fig. 2 - - Unit Dimensional Drawing — Size 12 (cont.)

  • Page 7: Installation

    18” (457) 42" (1067) Required bottom condensate drain connection. Otherwise, 36” (914mm) for condensate connection. Fig. 3 - - Service Clearance Dimensional Drawing NOTE: Consider also the effect of adjacent units. 581J* Base Unit Economizer Vertical Horizontal Powered Outlet Perfect Humidity™ System...

  • Page 8: Step 2 - Plan For Sequence Of Unit Installation

    Step 2 — Plan for Sequence of Unit Installation The support method used for this unit will dictate different sequences for the steps of unit installation. For example, on curb- - mounted units, some accessories must be installed on the unit before the unit is placed on the curb. Review the following for recommended sequences for installation steps.
  • Page 9 ROOFCURB UNIT SIZE ACCESSORY 1’ - 2” CRRFCURB003A01 [356] 581J*07-09 2’ - 0” CRRFCURB004A01 [610] Fig. 4 - - Roof Curb Details — Sizes 07- - 09 C11081...
  • Page 10 ROOFCURB UNIT SIZE ACCESSORY 1’ - 2” CRRFCURB003A02 [356] 581J*12 581J*12 2’ - 0” CRRFCURB004A02 [610] Fig. 5 - - Roof Curb Details — Size 12 C11082...

  • Page 11: Step 5 - Field Fabricate Ductwork

    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. MAX WEIGHT UNIT 581J*07 1200 581J*08 1420 581J*09 1420...

  • Page 12: Positioning On Curb

    Positioning on Curb — Position unit on roof curb so that the following clearances are maintained: in. (6.4 mm) clearance between the roof curb and the base rail inside the front and back, 0.0 in. clearance between the roof curb and the base rail inside on the duct end of the unit.

  • Page 13: Economizer Hood And Two- - Position Hood

    4. Carefully lift the hood assembly (with metal tray) through the filter access opening and assemble per the steps outlined in Economizer Hood and Two–Position Hood, below. Economizer Hood and Two- - Position Hood — NOTE: If the power exhaust accessory is to be installed on the unit, the hood shipped with the unit will not be used and must be discarded.

  • Page 14: Factory- - Option Thru- - Base Connections (Gas Connections)

    Table 2 – Natural Gas Supply Line Pressure Ranges UNIT MODEL UNIT SIZE 4.0 in. wg 581J 07, 08, 09, 12 (996 Pa) CAUTION EQUIPMENT DAMAGE HAZARD Failure to follow this caution may result in damage to equipment.
  • Page 15 EMBOSSMENT STAINLESS STEEL FITTING Fig. 17 - - Gas Line Piping Other hardware required to complete the installation of the gas supply line will include a manual shutoff valve, a sediment trap (drip leg) and a ground- - joint union. A pressure regulator valve may also be required (to convert gas pressure from pounds to inches of pressure).

  • Page 16: Step 11 - Install External Condensate Trap And Line

    NOTE: Pressure test the gas supply system after the gas supply piping is connected to the gas valve. The supply piping must be disconnected from the gas valve during the testing of the piping systems when test pressure is in excess of 0.5 psig (3450 Pa).

  • Page 17: Step 12 - Make Electrical Connections

    FIRE HAZARD Failure to follow this warning could result in intermittent operation or performance satisfaction. Do not connect aluminum wire between disconnect switch and 581J unit. Use only copper wire. (See Fig. 25.) ELECTRIC DISCONNECT SWITCH Fig. 25 - - Disconnect Switch and Unit Units with Factory- - Installed Disconnect —...

  • Page 18: Convenience Outlets

    Fuse Switch Control Box Access Panel Fig. 26 - - Convenience Outlet Location Two types of convenience outlets are offered on 581J models: Non- - powered and unit- - powered. Both types provide 125- - volt GFCI circuit- - interrupter) duplex receptacle rated at 15- - A behind a hinged waterproof access cover, located on the end panel of the unit.

  • Page 19: Factory- - Option Thru- - Base Connections (Electrical Connections)

    - party Building Management System. 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 20: Unit Without Thru- - Base Connection Kit

    For wire runs up to 50 ft. (15 m), use no. 18 AWG (American Wire Gage) insulated wire (35_C minimum). For 50 to 75 ft. (15 to 23 m), use no. 16 AWG insulated wire (35_C minimum). For over 75 ft. (23 m), use no. 14 AWG insulated wire (35_C minimum).

  • Page 21: Perfect Humidityt Control Connections

    CTB terminal R and the PINK lead to the LTLO switch with field- - supplied wire nuts. Refer to the installation instructions included with the Bryant Edge Programmable Thermidistat device for more information. Fig. 31 - - Edge Programmable Thermostat...
  • Page 22 HUMIDISTAT Fig. 32 - - Typical Perfect Humidityt Dehumidification System Humidistat Wiring Edge Programable Thermostat O/W2/B SRTN Fig. 33 - - Typical Rooftop Unit with Perfect Humidity Dehumidification System with Edge Programmable Thermostat Unit CTB THERMOSTAT Perfect Humidity™ FIOP *Connection not required. C11071 C09501...

  • Page 23: Rtu Open Control System

    RTU Open enables the unit to run in 100% stand- - alone control mode, Bryant’s I- - Vu Open network, or a Third Party Building Automation System (BAS). On- - board DIP switches allow you to select your protocol (and baud rate) of choice among the four most popular protocols in use today: BACnet, Modbus, Johnson N2 and LonWorks.
  • Page 24 C11069 Fig. 35 - - RTU Open System Control Wiring Diagram...
  • Page 25 C11070 Fig. 36 - - RTU Open System Control Wiring Diagram with Perfect Humidityt...

  • Page 26: Supply Air Temperature (Sat) Sensor

    RTU Open system. Supply Air Temperature (SAT) Sensor — On FIOP- - equipped 581J unit, the unit is supplied with a supply- - air temperature (SAT) sensor (33ZCSENSAT). This sensor is a tubular probe type, approx 6- - inches (12.7 mm) in length.

  • Page 27: Economi$Er2

    Phoenix connectors and then reconnect the connectors to the board. Space Temperature (SPT) Sensors — There are 2 types of SPT sensors available from Bryant, resistive input non-communicating (T55, T56, and T59) and Rnet communicating (SPS, SPPL, SPP, and SPPF) sensors.

  • Page 28: Indoor Air Quality (Co 2 ) Sensor

    Connect T- - 59: The T- - 59 space sensor requires a separate, isolated power supply of 24 VAC. See Fig. 42 for internal connections at the T- - 59. Connect the SEN terminal (BLU) to RTU Open J20- - 1. Connect the COM terminal (BRN) to J20- - 2.

  • Page 29: Smoke Detector/Fire Shutdown (Fsd)

    Fig. 46 - - RTU Open / Outdoor CO (33ZCSENCO2) Connections Smoke Detector/Fire Shutdown (FSD) — On 581J units equipped with factory- - installed Smoke Detector(s), the smoke detector controller implements the unit shutdown through its NC contact set connected to the unit’s CTB input.

  • Page 30: Connecting Discrete Inputs

    J4-1 or J4-4 + 24 VDC Supply Voltage J4-2 or J4-5 (-) 4 to 20 mA Current Loop Output to RTU-OPEN Fig. 48 - - Duct Relative Humidity Sensor Typical Wiring Humidistat: Use of a field- - supplied humidistat provides the RTU Open insight to the relative humidity in the space.

  • Page 31: Communication Wiring - - Protocols

    RTU Open is through plug J19. See Fig. 51 for wiring. NOTE: Power must be cycled after changing the SW1- - 3 switch settings. Contact your Bryant applications engineer for more detailed information on protocols, 3rd party wiring, and networking. SW3 Protocol Selection...

  • Page 32: Local Access

    0000 but can be changed. 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 on navigation and screen content.

  • Page 33: Outdoor Air Enthalpy Control

    Run LED NOTE: Refer to Catalog No. TS- - 5580J- - 01 for complete configuration of RTU Open operating sequences. Contact your Bryant applications engineer for details on configuration and troubleshooting of connected networks. Outdoor Air Enthalpy Control...

  • Page 34: Return Air Enthalpy Sensor

    Smoke Detectors Smoke detectors are available as factory- - installed options on 581J 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 35: Smoke Detector Locations

    takes the appropriate action to shut down fans and blowers, change over air handling systems, notify the fire alarm control panel, etc. The sensor uses a process called differential sensing to 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 does not.
  • Page 36 Fig. 59 - - Return Air Sampling Tube Location Completing Installation of Return Air Smoke Sensor: 1. Unscrew the two screws holding the Return Air Sensor detector plate. See Fig. 60. Save the screws. 2. Remove the Return Air Sensor and its detector plate. 3.
  • Page 37 Table 5 – Unit Wire/Fuse or HACR Breaker Sizing Data COMBUSTION NOM. FAN MOTOR V ---Ph---Hz TYPE 208/230--- 3--- 60 0.48 HIGH 460--- 3--- 60 0.25 HIGH 575--- 3--- 60 0.24 HIGH 208/230--- 3--- 60 0.48 HIGH 460--- 3--- 60 0.25 HIGH 575--- 3--- 60...
  • Page 38 Table 5 — Unit Wire/Fuse or HACR Breaker Sizing Data (cont) COMBUSTION NOM. FAN MOTOR V ---Ph---Hz TYPE 208/230--- 3--- 60 0.48 HIGH 460--- 3--- 60 0.25 HIGH 575--- 3--- 60 0.24 HIGH 208/230--- 3--- 60 0.48 HIGH 460--- 3--- 60 0.25 HIGH 575--- 3--- 60...
  • Page 39 Legend and Notes for Table 5 LEGEND: BRKR --- Circuit breaker --- Convenient outlet DISC --- Disconnect --- Full load amps --- Locked rotor amps --- Minimum circuit amps --- Power exhaust PWRD CO --- Powered convenient outlet UNPWR CO --- Unpowered convenient outlet NOTES: 1.

  • Page 40: Step 13 - - Adjust Factory- - Installed Options

    LP conversion kit Manual outside air damper Copyright 2011 Bryant Heating & Cooling Systems D 7310 W. Morris St. D Indianapolis, IN 46231 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

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