Bryant DURAPAC 579F Installation, Start-Up And Service Instructions Manual
  1. Manuals
  2. Brands
  3. Bryant Manuals
  4. Gas Heater
  5. DURAPAC 579F
  6. Installation, start-up and service instructions manual
Bryant DURAPAC 579F Installation, Start-Up And Service Instructions Manual

Bryant DURAPAC 579F Installation, Start-Up And Service Instructions Manual

Single package rooftop gas heating/electric cooling units durapac series sizes 180-300 15 to 25 tons
Hide thumbs Also See for DURAPAC 579F:
Table of Contents

Advertisement

Quick Links

See also: User's Information Manual , User Manual
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . 1
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-22
I. Step 1 - Provide Unit Support. . . . . . . . . . . . . . . . . 1
II. Step 2 - Rig and Place Unit . . . . . . . . . . . . . . . . . . . 3
III. Step 3 - Field Fabricate Ductwork . . . . . . . . . . . . . 8
VI. Step 6 - Trap Condensate Drain . . . . . . . . . . . . . . . 8
VII. Step 7 - Orifice Change. . . . . . . . . . . . . . . . . . . . . . 9
VIII. Step 8 - Install Gas Piping . . . . . . . . . . . . . . . . . . 10
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
XI. Step 11 - Install Outdoor-Air Hood. . . . . . . . . . . . 11
XII. Step 12 - Install All Accessories . . . . . . . . . . . . . 13
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22-28
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28-37
TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . .38-42
INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . . . . . . . . CL-1

SAFETY CONSIDERATIONS

Installation and servicing of air-conditioning equipment can
be hazardous due to system pressure and electrical compo-
nents. 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 oper-
ations 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. Wear safety glasses and work gloves.
Use quenching cloth for unbrazing operations. Have fire
extinguishers available for all brazing operations.
WARNING: Before performing service or mainte-
nance operations on unit, turn off main power switch
to unit and install lockout tag on disconnect switch.
Electrical shock could cause personal injury.
installation, start-up and

service instructions

SINGLE PACKAGE ROOFTOP
GAS HEATING/ELECTRIC COOLING UNITS
Cancels: II 579F-180-7
WARNING:
1. Improper installation, adjustment, alteration,
service, or maintenance can cause property dam-
age, personal injury, or loss of life. Refer to the
User's Information Manual provided with this
Page
unit for more details.
2. Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance.
What to do if you smell gas:
1. DO NOT try to light any appliance.
2. DO NOT touch any electrical switch, or use any
phone in your building.
3. IMMEDIATELY call your gas supplier from a
neighbor's phone. Follow the gas supplier's
instructions.
4. If you cannot reach your gas supplier, call the
fire department.
WARNING: Disconnect gas piping from unit when
pressure testing at pressure greater than 0.5 psig.
Pressures greater than 0.5 psig will cause gas valve
damage resulting in hazardous condition. If gas valve is
subjected to pressure greater than 0.5 psig, it must be
replaced before use. When pressure testing field-
supplied gas piping at pressures of 0.5 psig or less, a
unit connected to such piping must be isolated by clos-
ing the manual gas valve(s).
IMPORTANT: Units have high ambient operating limits. If
limits are exceeded, the units will automatically lock the com-
pressor out of operation. Manual reset will be required to
restart the compressor.
I. STEP 1 - PROVIDE UNIT SUPPORT
A. Roof Curb
Assemble and install accessory roof curb or horizontal
adapter roof curb in accordance with instructions shipped
with this accessory. See Fig. 1 and 2. Install insulation, cant
strips, roofing, and counter flashing as shown. Ductwork can
be installed to roof curb or horizontal adapter roof curb before
unit is set in place. Curb or adapter roof curb should be level.
This is necessary to permit unit drain to function properly.
Unit leveling tolerance is ±
tion. Refer to Accessory Roof Curb or Horizontal Adapter Roof
Curb Installation Instructions for additional information as
required. When accessory roof curb or horizontal adapter roof
curb is used, unit may be installed on class A, B, or C roof cov-
ering material.
579F
Dura Pac Series
Sizes 180-300
15 to 25 Tons
II 579F-180-8

INSTALLATION

1
/
in. per linear ft in any direc-
16
3/15/06

Advertisement

Table of Contents
loading

Related Manuals for Bryant DURAPAC 579F

Summary of Contents for Bryant DURAPAC 579F

  • Page 1: Table Of Contents

    installation, start-up and service instructions SINGLE PACKAGE ROOFTOP GAS HEATING/ELECTRIC COOLING UNITS CONTENTS SAFETY CONSIDERATIONS ......1 INSTALLATION .
  • Page 2 — —...

  • Page 3: Step 2 - Rig And Place Unit

    NOTE: CRRFCURB013A00 is a fully factory preassembled horizontal adapter and includes an insulated transition duct. The pressure drop through the adapter curb is negligible. For horizontal return applications: The power exhaust and barometric relief dampers must be installed in the return air duct. Fig.
  • Page 4 NOTES: 1. Dimensions in ( ) are in millimeters. 2. Refer to Fig. 4 and 5 for unit operating weights. 3. Remove boards at ends of unit and runners prior to rigging. 4. Rig by inserting hooks into unit base rails as shown. Use corner post from packaging to protect coil from damage.
  • Page 5 — —...
  • Page 6 — —...
  • Page 7 UNIT 579F NOMINAL CAPACITY (tons) OPERATING WEIGHT (lb) EconoMi$erIV Roof Curb COMPRESSOR/MANUFACTURER Quantity...Model (Ckt 1, Ckt 2) Number of Refrigerant Circuits Stages of Capacity Control (%) Oil (oz) (Ckt 1, Ckt 2) REFRIGERANT TYPE Expansion Device Operating Charge (lb-oz) Circuit 1* Circuit 2 CONDENSER COIL Rows...Fins/in.

  • Page 8: Step 3 - Field Fabricate Ductwork

    III. STEP 3 — FIELD FABRICATE DUCTWORK Secure all ducts to building structure. Use flexible duct con- nectors between unit and ducts as required. Insulate and weatherproof all external ductwork, joints, and roof openings with counter flashing and mastic in accordance with applica- ble codes.

  • Page 9: Step 7 - Orifice Change

    Table 2 to identify the correct orifice size for the elevation. See Table 3 for the number of orifices required for each unit size. Purchase these orifices from your local Bryant dealer. Follow instructions in accessory Installation Instruc- tions to install the correct orifices.

  • Page 10: Step 8 - Install Gas Piping

    B. Field Control Wiring Install a Bryant-approved accessory thermostat assembly according to installation instructions included with acces- sory. Locate thermostat assembly on a solid interior wall in the conditioned space to sense average temperature.

  • Page 11: Step 10 - Make Outdoor-Air Inlet Adjustments

    7. Turn the handle to the OFF position and close the door. The handle should fit over the end of the shaft when the door is closed. 8. The handle must be in the OFF position to open the control box door. D.
  • Page 12 VOLTAGE NOMINAL RANGE UNIT No. 1 VOLTAGE 579F (3 Ph, 60 Hz) Min Max RLA LRA RLA LRA Qty Hp 208/230 187 253 25.6 (15 Tons) 414 508 13.5 208/230 187 253 (18 Tons) 414 508 16.2 208/230 187 253 (20 Tons) 414 508 16.2 208/230...

  • Page 13: Step 12 - Install All Accessories

    Fig. 18 — Outdoor-Air Hood Component Location Fig. 19 — Seal Strip Location BAFFLE (300 ONLY) LOWER FILTER RETAINER FILTER SUPPORT BRACKET HOOD TOP PANEL HOOD DRAIN PAN UPPER FILTER RETAINER Fig. 20 — Outdoor-Air Hood Details XII. STEP 12 — INSTALL ALL ACCESSORIES After all the factory-installed options have been adjusted, install all field-installed accessories.

  • Page 14: Step 13 - Adjust Factory-Installed Options

    NOTE: Dimensions in ( ) are in mm. Fig. 21 — Wind Baffle Details SENSOR SENSOR LOCATION LOCATION HAIRPIN END 579F180 NOTE: All sensors are located on the eighth hairpin up from the bottom. Fig. 22 — Motormaster® I Sensor Locations Install Motormaster V Controls The Motormaster V control is a motor speed control device which adjusts condenser fan motor speed in response to...
  • Page 15 FROM FUSE BLOCK 12 13A 2 5 6 TO PRESSURE TRANSDUCER Fig. 23 — Motormaster® V Control FRAME ECONOMI$ERIV SCREWS SCREWS Fig. 24 — EconoMi$erIV Component Locations — End View SUPPLY AIR TEMPERATURE SENSOR LOCATION ECONOMI$ERIV ACTUATOR CONTROLLER FLANGE AND SCREWS (HIDDEN) Fig.
  • Page 16 Potentiometer Default Settings: LEGEND Power Exhaust DCV — Demand Controlled Ventilation Minimum Pos. IAQ — Indoor Air Quality DCV Max. LALS — Low Temperature Compressor DCV Set Lockout Switch Enthalpy OAT — Outdoor-Air Temperature POT — Potentiometer C. EconoMi$erIV Control Modes Determine the EconoMi$erIV control mode before set up of the control.
  • Page 17 ECONOMI$ERIV WITH OUTDOOR AIR APPLICATION Outdoor Air Dry Bulb None. The outdoor air dry bulb sensor is factory installed. Differential Dry Bulb Single Enthalpy Differential Enthalpy for DCV Control using a Wall-Mounted CO Sensor for DCV Control using a Duct-Mounted CO Sensor *CRENTDIF004A00 and CRTEMPSN002A00 accessories are used on many different base units.
  • Page 18 Open Free Cool Fig. 31 — EconoMi$erIV Controller Indoor Air Quality (IAQ) Sensor Input The IAQ input can be used for demand control ventilation control based on the level of CO measured in the space or return air duct. Mount the accessory IAQ sensor according to manufacturer specifications.
  • Page 19 Adjust the minimum position potentiometer to allow the minimum amount of outdoor air, as required by local codes, to enter the building. Make minimum position adjustments with at least 10° F temperature difference between the out- door and return-air temperatures. To determine the minimum position setting, perform the following procedure: 1.
  • Page 20 See Table 12. Use setting 1 or 2 for Bryant equipment. See Table 12. 1. Press Clear and Mode buttons. Hold at least 5 sec- onds until the sensor enters the Edit mode.

  • Page 21: Step 14 - Install Humidistat For Optional Perfect Humidity™ Dehumidification Package

    XIV. STEP 14 — INSTALL HUMIDISTAT FOR OPTIONAL PERFECT HUMIDITY™ DEHUMIDIFICATION PACKAGE Perfect Humidity dehumidification package operation can be controlled by field installation of a Bryant-approved humidistat. To install the humidistat perform the following procedure: 1. Locate humidistat on a solid interior wall in the con- ditioned space.

  • Page 22: Start-Up

    Fig. 35 — Perfect Humidity™ Dehumidification Package Operation Diagram (Single Circuit Shown) START-UP Use the following information and Start-Up Checklist on page CL-1 to check out unit PRIOR to start-up. I. UNIT PREPARATION Check that unit has been installed in accordance with these installation instructions and all applicable codes.
  • Page 23 Unit warranty will not be affected. 7. Use of a field-supplied motor may affect wiring size. Contact your local Bryant representative for details. — —...
  • Page 24 Unit warranty will not be affected. 7. Use of a field-supplied motor may affect wiring size. Contact your local Bryant representative for details. AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) Watts Watts 3.80...
  • Page 25 Unit warranty will not be affected. 7. Use of a field-supplied motor may affect wiring size. Contact the local Bryant representative for details.
  • Page 26 Unit warranty will not be affected. 7. Use of a field-supplied motor may affect wiring size. Contact your local Bryant representative for details. Table 18 — Accessory/FIOP Static Pressure* MAXIMUM...
  • Page 27 UNIT 579F 180† †† †† 1179 180** †† †† 1550 216† †† †† 1095 216** †† †† 1287 240† †† †† 1225 240** †† †† 1458 300† †† †† 1283 300** †† †† †† *Approximate fan rpm shown. †Indicates standard low/medium static drive package. **Indicates alternate high static-drive package.

  • Page 28: Service

    XII. OPERATING SEQUENCE A. Cooling, Units Without Economizer When thermostat calls for cooling, terminals G and Y1 are energized. The indoor (evaporator) fan contactor (IFC), com- pressor contactor no. 1 (C1) and outdoor-fan contactor (OFC) are energized, and evaporator-fan motor, compressor no. 1, and both condenser fans start.
  • Page 29 CERAMIC BAFFLE CLIP HEAT EXCHANGER TUBES NOTE: One baffle and clip will be in each upper tube of the heat exchanger. Fig. 37 — Removing Heat Exchanger Ceramic Baffles and Clips C. Combustion-Air Blower Clean periodically to assure proper airflow and heating effi- ciency.
  • Page 30 7. Ensure cleaner thoroughly penetrates deep into finned areas. 8. Interior and exterior finned areas must be thoroughly cleaned. 9. Finned surfaces should remain wet with cleaning solution for 10 minutes. 10. Ensure surfaces are not allowed to dry before rinsing. Reapplying cleaner as needed to ensure 10-minute saturation is achieved.
  • Page 31 IV. EVAPORATOR FAN SERVICE AND REPLACEMENT A. 579F180 Units (See Fig. 39) NOTE: To remove belts only, follow Steps 1-6. 1. Remove filter and supply-air section panels. 2. Remove unit top panel. 3. Loosen carriage nuts A and B holding motor mount assembly to fan scroll side plates.
  • Page 32 B. 579F240,300 Units (Fig. 42) 1. Shut off unit power supply. 2. Remove fan top-grille assembly and loosen fan hub screws. 3. Adjust fan height on unit, using a straightedge placed across the fan orifice. 4. Tighten setscrews and replace rubber hubcap to pre- vent hub from rusting to motor shaft.
  • Page 33 47 for typical wiring diagrams. XV. REPLACEMENT PARTS A complete list of replacement parts may be obtained from any Bryant distributor upon request. XVI. DIAGNOSTIC IGC LEDs The IGC board has LEDs for diagnostic purposes. Refer to Troubleshooting section on page 38.
  • Page 34 XVII. OPTIONAL HINGED ACCESS DOORS When the optional service package is ordered or the if the hinged access doors option is ordered, the unit will be provided with external and internal hinged access doors to facilitate service. Four external hinged access doors are provided. All external doors are provided with 2 large turn latches with folding bail-type handles.
  • Page 35 Fig. 46 — Typical Wiring Schematic (579F180, 208/230-V Shown) — —...
  • Page 36 Fig. 47 — Typical Component Arrangement (579F240, 208/230-V Shown) — —...
  • Page 37 LEGEND AND NOTES FOR FIG. 46 AND 47 — Adjustable, Heat Anticipator BRK W/AT — Breaks With Amp Turns — Contactor, Compressor — Capacitor — Circuit Breaker — Cooling Compensator — Compressor Lockout COMP — Compressor Motor — Compressor Time Delay —...

  • Page 38: Troubleshooting

    A functional view of the EconoMi$erIV is shown in Fig. 49. Typical settings, sensor ranges, and jumper positions are also shown. An EconoMi$erIV simulator program is avail- able from Bryant to help with EconoMi$erIV training and troubleshooting. A. EconoMi$erIV Preparation This procedure is used to prepare the EconoMi$erIV for troubleshooting.
  • Page 39 G. EconoMi$erIV Troubleshooting Completion This procedure is used to return the EconoMi$erIV to opera- tion. No troubleshooting or testing is done by performing the following procedure. 1. Disconnect power at TR and TR1. 2. Set enthalpy potentiometer to previous setting. 3.
  • Page 40 PROBLEM Burners Will Not Misaligned spark electrodes. Ignite. No gas at main burners. Water in gas line. No power to furnace. No 24 v power supply to control circuit. Miswired or loose connections. Burned-out heat anticipator in thermostat. Broken thermostat wires. Inadequate Heating.
  • Page 41 LEGEND IGC — Integrated Gas Unit Controller NOTE: Thermostat Fan Switch in the “AUTO” position. Fig. 48 — IGC Control (Heating and Cooling) — —...
  • Page 42 INPUTS Enthalpy* Demand Control Ventilation (DCV) Outdoor Below set High (DCV LED Off) (Free Cooling LED Off) (Free Cooling LED On) Above set High (DCV LED On) (Free Cooling LED Off) (Free Cooling LED On) *For single enthalpy control, the module compares outdoor enthalpy to the ABCD set point.

  • Page 43: Index

    Air quantity limits Altitude compensation Burner spark gap Changeover set points 17, 18 Charging chart, refrigerant Clearance sensor Configuration Settings 19, 20 Combustion blower wheel Compressor Lockout 15, 33 Lubrication Mounting Rotation Concentric duct Condensate drain Cleaning Location 8, 9 Condenser coil Cleaning Condenser fan...
  • Page 44 Packaged Service Training programs are an excellent way to increase your knowledge of the equipment discussed in this manual, including: • Unit Familiarization • Installation Overview A large selection of product, theory, and skills programs are available, using popular video-based formats and materials.
  • Page 46 Copyright 2006 Bryant Heating & Cooling Systems Printed in U.S.A. CATALOG NO. 04-53579001-01...

  • Page 48: Start-Up Checklist

    CIRCUIT NO. 1 REFRIGERANT DISCHARGE CIRCUIT NO. 1 VERIFY REFRIGERANT CHARGE USING CHARGING CHART ON PAGE 32. GENERAL ECONOMI$ERIV MINIMUM VENT AND CHANGEOVER SETTINGS TO JOB REQUIREMENTS Copyright 2006 Bryant Heating & Cooling Systems START-UP CHECKLIST SERIAL NO.: TECHNICIAN: L1-L2 L2-L3...

Table of Contents