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Bryant Preferred Series Installation Instructions Manual

Single package rooftop gas heating/electric cooling unit with puron (r-410a) refrigerant
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Preferred™ Series
581J 04-06 Single Package Rooftop
Gas Heating/Electric Cooling Unit
with Puron
(R-410A) Refrigerant
®
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1
Rated Indoor Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Jobsite Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Step 1 - Plan for Unit Location . . . . . . . . . . . . . . . . . . . . 10
Step 3 - Inspect Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Step 4 - Provide Unit Support . . . . . . . . . . . . . . . . . . . . . 10
Step 5 - Field Fabricate Ductwork. . . . . . . . . . . . . . . . . . 12
Step 6 - Rig and Place Unit. . . . . . . . . . . . . . . . . . . . . . . . 12
(When Required). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Step 8 - Install Outside Air Hood . . . . . . . . . . . . . . . . . . 14
Step 9 - Units with Hinged Panels Only . . . . . . . . . . . . . 15
Step 10 - Install Flue Hood . . . . . . . . . . . . . . . . . . . . . . . . 15
Step 11 - Install Gas Piping . . . . . . . . . . . . . . . . . . . . . . . 16
(GAS CONNECTIONS)
Step 13 - Make Electrical Connections . . . . . . . . . . . . . . 19
Economi$er® X (Factory Option) . . . . . . . . . . . . . . . . . . . 27
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53581010-01
Installation Instructions
Printed in U.S.A.
Form II581J-4-6-02
RTU OPEN CONTROL SYSTEM . . . . . . . . . . . . . . . . . . 37
Smoke Detectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Step 15 - Install Accessories. . . . . . . . . . . . . . . . . . . . . . . 39
Step 16 - Check Belt Tension . . . . . . . . . . . . . . . . . . . . . . 39
Pre-Start and Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . . . . . CL-1

SAFETY CONSIDERATIONS

Installation and servicing of air-conditioning equipment can be
hazardous due to system pressure and electrical components.
Only trained and qualified service personnel should install,
repair, or service air-conditioning equipment.
Untrained personnel can perform basic maintenance functions
of cleaning coils and filters and replacing filters. All other
operations should be performed by trained service personnel.
When working on air-conditioning equipment, observe
precautions in the literature, tags and labels attached to the
unit, and other safety precautions that may apply.
Follow all safety codes, including ANSI (American National
Standards Institute) Z223.1. Wear safety glasses and work
gloves. Use quenching cloth for unbrazing operations. Have
fire extinguisher available for all brazing operations.
It is important to recognize safety information. This is the
safety-alert symbol
. When you see this symbol on the unit
and in instructions or manuals, be alert to the potential for
personal injury.
Understand the signal
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.
Pg 1
words
DANGER, WARNING,
4-19
Replaces: II581J-4-6-01

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Summary of Contents for Bryant Preferred Series

  • Page 1: Table Of Contents

    Preferred™ Series 581J 04-06 Single Package Rooftop Gas Heating/Electric Cooling Unit with Puron (R-410A) Refrigerant ® Installation Instructions CONTENTS • INPUTS • OUTPUTS SAFETY CONSIDERATIONS ..... . 1 •...
  • Page 2 WARNING WARNING CARBON-MONOXIDE POISONING HAZARD Failure to follow instructions could result in severe personal Electrical shock can cause personal injury and death. Shut injury or death due to carbon-monoxide poisoning, if com- off all power to this equipment during installation. There bustion products infiltrate into the building.

  • Page 3: Model Number Nomenclature And Dimensions

    MODEL NUMBER NOMENCLATURE AND DIMENSIONS WARNING See Fig. 1 for 581J model number nomenclature. See Fig. 2 FIRE HAZARD and 3 for unit dimensional drawings. See Fig. 4 for corner weights and clearance dimensions. See Fig. 5 for base rail de- Failure to follow this warning could result in personal inju- tails.
  • Page 4 Position: 10 11 12 13 14 15 16 17 Example: Unit Type Packaging and 2-Speed Fan Motor 581 - High Efficiency Gas Heat RTU A = Standard Packaging, electro-mechanical controls that require W7212 EconoMi$er IV B = LTL Packaging, electro-mechanical Model controls that require W7212 EconoMi$er IV ®...
  • Page 5 Fig. 2 — Dimensional Drawing for Units Built On or After 4/15/19...
  • Page 6 Fig. 3 — Dimensional Drawing for Units Built On or Prior to 4/14/19...
  • Page 7 Fig. 4 — Corner Weights and Clearances...
  • Page 8 Fig. 5 — Base Rail Details...
  • Page 9 Fig. 6 — Thru-the-Base Charts...

  • Page 10: Installation

    INSTALLATION Step 2 — Plan for Sequence of Unit Installation The support method used for this unit will dictate different se- Jobsite Survey quences for the steps of unit installation. For example, on curb- Complete the following checks before installation. mounted units, some accessories must be installed on the unit Consult local building codes and the NEC (National Elec- before the unit is placed on the curb.
  • Page 11 Fig. 7 — Roof Curb Details...

  • Page 12: Slab Mount (Horizontal Units Only)

    Curb should be level. This is necessary for unit drain to func- Fabricate supply ductwork so that the cross sectional dimen- tion properly. Unit leveling tolerances are shown in Fig. 8. Re- sions are equal to or greater than the unit supply duct opening fer to Accessory Roof Curb Installation Instructions for addi- dimensions for the first 18-in.

  • Page 13: Positioning On Curb

    "B" 36"- 54" DETAIL "A" PLACE ALL SEAL STRIP IN PLACE REQUIRED (914-1371) BEFORE PLACING UNIT ON ROOF CURB. SPREADER BARS DUCT END "C" "A" SEE DETAIL "A" DIMENSIONS MAX WEIGHT UNIT 581J*04 74.5 1890 38.0 33.5 581J*05 74.5 1890 38.0 41.5 1055...

  • Page 14: Step 8 - Install Outside Air Hood

    NOTCHES NOTCHES FILTER ACCESS PANEL BASEPAN COMPRESSOR ACCESS PANEL OUTDOOR-AIR OPENING AND INDOOR COIL ACCESS PANEL Fig. 11 — Location of Notches Fig. 13 — Typical Access Panel Locations SCREWS Locate the (2) screws holding the metal tray to the basepan and remove.

  • Page 15: Step 9 - Units With Hinged Panels Only

    PANEL DIVIDER OUTSIDE HOOD CLEANABLE ALUMINUM FILTER FILTER PANEL CAULK HERE INDOOR BAROMETRIC INDOOR RELIEF COIL COIL ACCESS ACCESS FILTER PANEL PANEL CLIP Fig. 17 — Economizer Filter Installation Fig. 15 — Indoor Coil Access Panel Relocation Step 9 — Units with Hinged Panels Only Swing out indoor coil access panel and insert the hood Relocate latch shipped inside the compressor compartment be- sides under the panel (hood top).

  • Page 16: Step 11 - Install Gas Piping

    Step 11 — Install Gas Piping Install a gas supply line that runs to the unit heating section. Refer to the NFPA 54/NFGC or equivalent code for gas pipe Installation of the gas piping must be in accordance with local sizing data.
  • Page 17 Other hardware required to complete the installation of the gas HIGH VOLTAGE supply line includes a manual shutoff valve, a sediment trap BRASS FITTING FOR CONDUIT 3 TO 6 TON UNITS (drip leg) and a ground-joint union. A pressure regulator valve CONNECTOR may also be required (to convert gas pressure from pounds to inches of pressure).

  • Page 18: Step 12 - Install External Condensate Trap And Line

    NOTE: If orifice hole appears damaged or it is suspected to have been redrilled, check orifice hole with a numbered drill bit of cor- rect size. Never redrill an orifice. A burr-free and squarely aligned orifice hole is essential for proper flame characteristics. See Fig.

  • Page 19: Step 13 - Make Electrical Connections

    NOTE: Unit may be equipped with short test leads (pigtails) on the field line connection points on contactor C or optional discon- nect switch. These leads are for factory-run test purposes only; re- move and discard before connecting field power wires to unit con- MINIMUM PITCH 1˝...

  • Page 20: Units Without Factory-Installed Non-Fused Disconnect

    Field-Install the NFD Shaft and Handle Do not cover unit informative plate if mounting the disconnect on the unit cabinet. Remove unit front panel (see Fig. 2). Remove (3) hex screws on the NFD enclosure — (2) on ALL UNITS the face of the cover and (1) on the left side cover.
  • Page 21 Installing Weatherproof Cover leads can be connected at the line-side terminals on the unit- mounted non-fused disconnect switch; this will provide service A weatherproof while-in-use cover for the factory-installed power to the unit when the unit disconnect switch is open. Other convenience outlets is now required by UL standards.

  • Page 22: Factory-Option Thru-Base Connections (Electrical Connections)

    (RTU Open is available as a factory-installed option only). FACTORY-OPTION THRU-BASE CONNECTIONS (ELEC- THERMOSTAT TRICAL CONNECTIONS) Install a Bryant-approved accessory thermostat according to This service connection kit consists of a -in. NPT gas adapter installation instructions included with the accessory. For com- fitting (brass), a -in.

  • Page 23: Heat Anticipator Settings

    the terminal strip on the upper-left corner of the Controls Con- Perfect Humidity system is not available for single phase (-J volt- nection Board. See Fig. 40. age code) models. NOTE: If thru-the-bottom connections accessory is used, refer to The Perfect Humidity dehumidification system requires a field- the accessory installation instructions for information on routing supplied and field-installed space relative humidity control de- power and control wiring.
  • Page 24 Fig. 42 — Typical Perfect Humidity™ Adaptive Dehumidification System Humidistat Wiring...

  • Page 25: Low Ambient Control (Factory Option)

    LOW AMBIENT CONTROL (FACTORY OPTION) period begins. Once ignition occurs, the IGC board will contin- ue to monitor the condition of the rollout switch, the limit If the unit comes with Electro-Mechanical (EM) control, then switches, the pressure switch, and the flame sensor. Assuming no adjustment is necessary.
  • Page 26 LOCKING TAB CONNECTOR OVERCURRENT FUSE PROTECTION LOCKING REDUNDANT GAS TAB CONNECTOR VALVE RELAY SPADE CONNECT IGNITOR Fig. 44 — IGC Board Component Layout Fig. 45 — Typical IGC Control Wiring Diagram...

  • Page 27: Economi$Er® X (Factory Option)

    Economi$er ® X (Factory Option) User Interface Provides status for normal operation, setup parameters, check- The EconoMi$er X system is an expandable economizer con- out tests, and alarm and error conditions with a 2-line 16 char- trol system, which includes a W7220 economizer module (con- acter LCD display and four button keypad.

  • Page 28: Economizer Module Wiring Details

    Shipping Temperature Table 8 — Economizer Module - Right Hand Terminal –40°F to 150°F (–40°C to 65°C) Blocks Relative Humidity LABEL TYPE DESCRIPTION 5% to 95% RH non-condensing Top Right Terminal Blocks ECONOMIZER MODULE WIRING DETAILS AUX2 I 24 vac IN The first terminal is not used.

  • Page 29: Interface Overview

    To use the keypad when working with menus: Table 9 — HH57AC081 Sensor Wiring Terminations • Press the ▲ (Up arrow) button to move to the previous menu. TERMINAL TYPE DESCRIPTION • Press the ▼ (Down arrow) button to move to the next NUMBER LABEL menu.

  • Page 30: Setup And Configuration

    located after the cooling coil, in the fan section, where it is desig- The setup process uses a hierarchical menu structure that is nated as (Cooling) Supply Air Temperature or SAT sensor. easy to use. Press the ▲ and ▼ arrow buttons to move forward and backward through the menus and press the button to select SETUP AND CONFIGURATION and confirm setup item changes.
  • Page 31 Table 11 — W7220 Menu Structure* (cont) PARAMETER PARAMETER EXPANDED PARAMETER NAME MENU PARAMETER DEFAULT RANGE AND Notes VALUE INCREMENT † Displays number of times actuator has cycled. ACT COUNT 1 to 65,535 1 cycle equals 180 degrees of actuator movement in any direction.
  • Page 32 Table 11 — W7220 Menu Structure* (cont) PARAMETER PARAMETER EXPANDED PARAMETER NAME MENU PARAMETER DEFAULT RANGE AND Notes VALUE INCREMENT † 0°F to 50°F ENERGY RECOVERY VENTILATOR UNIT OUTDOOR AIR (–18°C to 10°C); ERV OAT SP †† 32°F (0°C) TEMPERATURE SETPOINT increment by Only when AUX1 O = ERV 1 degree...
  • Page 33 Table 11 — W7220 Menu Structure* (cont) PARAMETER PARAMETER EXPANDED PARAMETER NAME MENU PARAMETER DEFAULT RANGE AND Notes VALUE INCREMENT † Turns on the DCV automatic control of the dampers. Resets MAN (manual) ventilation based on the RA, OA, and MA sensor conditions. DCVCAL ENA AUTO Requires all (RA, OA, MA, CO...
  • Page 34 Table 11 — W7220 Menu Structure* (cont) PARAMETER PARAMETER EXPANDED PARAMETER NAME MENU PARAMETER DEFAULT RANGE AND Notes VALUE INCREMENT † DAMPER CALIBRATION ROUTINE RUNNING If DCV Auto enable has been programmed, this alarm will display when the W7220 is completing a calibration on the dampers. DMP CAL RUNNING Wait until the calibration is completed and the alarm will go away.
  • Page 35 Table 13 — Dry Bulb Operation without DCV (CO Sensor) — 1 Speed Fan DEMAND OUTSIDE AIR CONTROLLED GOOD TO Y1-I Y2-I FAN SPEED Y1-O Y2-O OCCUPIED UNOCCUPIED VENTILATION (DCV) ECONOMIZE High 0-v/Off 0-v/Off MIN POS Closed High 24-v/On 0-v/Off MIN POS Closed High...
  • Page 36 Table 16 — Enthalpy Operation with DCV (CO Sensor) — 1 Speed Fan DEMAND OUTSIDE AIR CONTROLLED GOOD TO Y1-I Y2-I Y1-O Y2-O OCCUPIED UNOCCUPIED SPEED VENTILATION (DCV) ECONOMIZE High 0-v/Off 0-v/Off Closed VENTMIN High 24-v/On 0-v/Off Closed VENTMIN High 24-v/On 24-v/On Closed...

  • Page 37: Enthalpy Settings

    ENTHALPY SETTINGS When the OA temperature, enthalpy and dew point are below CAUTION the respective set points, the Outdoor Air can be used for econ- omizing. Figure 51 shows the new single enthalpy boundaries EQUIPMENT DAMAGE HAZARD in the W7220. There are 5 boundaries (set points ES1 through Failure to follow this caution may result in equipment damage.

  • Page 38: Additional Application Data

    ADDITIONAL APPLICATION DATA RETURN AIR Refer to the application data document “Factory Installed SMOKE DETECTOR Smoke Detectors for Small and Medium Rooftop Units 2 to (AS SHIPPED) 25 Tons” for discussions on additional control features of these smoke detectors including multiple unit coordination. Fig.

  • Page 39: Step 14 - Adjust Factory-Installed Options

    Fig. 54 — EconoMi$er ® IV Wiring Step 14 — Adjust Factory-Installed Options • Differential enthalpy sensor • sensor SMOKE DETECTORS • Louvered hail guard Smoke detector(s) will be connected at the Controls Connec- • Motormaster ® head pressure controls tions Board, at terminals marked “Smoke Shutdown.”...

  • Page 40: Belt Tension Method

    BELT TENSION METHOD Requires belt tension gage that measures tension in belt in units of lbs force. BLOWER PULLEY V-BELT MOTOR PULLEY MOTOR BELT DEFLECTION FORCE (LBS) BELT SMALLEST UNNOTCHED NOTCHED CROSS SHEAVE BELTS BELTS SECTION DIAMETER USED USED 3.0-3.6 A, AX 3.8-4.8 MOUNTING...
  • Page 42 Copyright 2019 Bryant Heating & Cooling Systems Cat. No. 04-53581010-01 Edition Date: 4-19 Printed in U.S.A. Form No: II581J-4-6-02 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. Replaces:II581J-4-6-01...

  • Page 43: Start-Up Checklist

    START-UP CHECKLIST FOR 581J 04-06 SINGLE PACKAGE ROOFTOP GAS HEATING/ELECTRIC COOLING UNIT (REMOVE AND USE FOR 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 judgment, follow safe practices, and adhere to the safety considerations/information as outlined in preceding sec- tions of this Installation Instruction document.
  • Page 44 8. Open W1 restore unit to dehumid mode (Y/N) _____ 9. Open humidistat input compressor and outdoor fan stop; LSV and DSV solenoids de-energized (Y/N) _____ 10. Restore set-points for thermostat and humidistat (Y/N) _____ Copyright 2019 Bryant Heating & Cooling Systems Cat. No. 04-53581010-01 Edition Date: 4-19 Printed in U.S.A.

This manual is also suitable for:

581j 04 series581j 06 series581j 05 series

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