Bryant 559K 20 Series Service And Maintenance Instructions
  1. Manuals
  2. Brands
  3. Bryant Manuals
  4. Air Conditioner
  5. 559K 20 Series
  6. Service and maintenance instructions
Bryant 559K 20 Series Service And Maintenance Instructions

Bryant 559K 20 Series Service And Maintenance Instructions

Single package rooftop electric cooling unit with puron (r-410a) refrigerant 17.5-27.5 nominal tons
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
5 5 9 K * 2 0 - 3 0
S i n g l e P a c k a g e R o o f t o p E l e c t r i c C o o l i n g U n i t
w ith Pu ro n
®
(R -410A) R efri g erant
1 7 . 5 - 2 7 . 5 N o m i n a l T o n s
Service and Maintenance Instructions
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 2
UNIT ARRANGEMENT AND ACCESS . . . . . . . . . . . . . . 3
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
SUPPLY FAN (BLOWER) SECTION . . . . . . . . . . . . . . . . 5
Supply Fan (Direct-Drive) . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2-Speed Indoor Fan Motor System . . . . . . . . . . . . . . . . . . 13
COOLING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Condenser Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Recommendation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Evaporator Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Evaporator Coil Metering Devices . . . . . . . . . . . . . . . . . . 15
TXV Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Replacing TXV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Refrigerant System Pressure Access Ports . . . . . . . . . . . . 16
(R-410A) REFRIGERANT . . . . . . . . . . . . . . . . 17
®
Refrigerant Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
COMPRESSOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Replacing Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Compressor Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Filter Drier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Condenser-Fan Adjustment . . . . . . . . . . . . . . . . . . . . . . . . 26
Troubleshooting Cooling System . . . . . . . . . . . . . . . . . . . . 27
CONVENIENCE OUTLETS . . . . . . . . . . . . . . . . . . . . . . 28
Convenience Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Installing Weatherproof Cover . . . . . . . . . . . . . . . . . . . . . 28
Non-Powered Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Unit-Powered Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Duty Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Fuse on Powered Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
SMOKE DETECTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Smoke Detector Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Smoke Detector Locations . . . . . . . . . . . . . . . . . . . . . . . . . 30
SENSOR AND CONTROLLER TESTS . . . . . . . . . . . . . 32
Sensor Alarm Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Controller Alarm Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53559021-01
Page
Printed in U.S.A.
Form No. SM559K-20-30-02
Dirty Controller Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Dirty Sensor Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Changing the Dirt Sensor Test . . . . . . . . . . . . . . . . . . . . . 33
Remote Station Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
SD-TRK4 Remote Alarm Test Procedure . . . . . . . . . . . . 33
Dirty Sensor Test Using an SD-TRK4 . . . . . . . . . . . . . . . 34
Detector Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
PROTECTIVE DEVICES . . . . . . . . . . . . . . . . . . . . . . . . . 35
Compressor Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Relief Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Control Circuit, 24-V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
ELECTRIC HEATERS . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Heater Installation (All Units) . . . . . . . . . . . . . . . . . . . . . . 37
(65KA SCCR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
230V HIGH SCCR UNIT INSTALLATION
(60KA SCCR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Completing Heater Installation . . . . . . . . . . . . . . . . . . . . 40
ECONOMIZER SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . 43
EconomizerONE (Factory Option) . . . . . . . . . . . . . . . . . . 48
PRE-START-UP/START-UP . . . . . . . . . . . . . . . . . . . . . . 69
START-UP, GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Unit Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Additional Installation/Inspection . . . . . . . . . . . . . . . . . . 69
Return-Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Outdoor-Air Inlet Screens . . . . . . . . . . . . . . . . . . . . . . . . . 69
Compressor Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Internal Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Refrigerant Service Ports . . . . . . . . . . . . . . . . . . . . . . . . . 69
Compressor Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Ventilation (Continuous Fan) . . . . . . . . . . . . . . . . . . . . . . 70
FASTENER TORQUE VALUES . . . . . . . . . . . . . . . . . . . 70
APPENDIX A - MODEL NUMBER
NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
APPENDIX B - PHYSICAL DATA . . . . . . . . . . . . . . . . 72
APPENDIX C - FAN PERFORMANCE . . . . . . . . . . . . 74
APPENDIX D - WIRING DIAGRAMS . . . . . . . . . . . . . 87
APPENDIX E - LOW AMBIENT CONTROL SENSOR
LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . . . . . CL-1
Pg 1
7-24
Replaces: SM559K-20-30-01

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 559K 20 Series and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Bryant 559K 20 Series

Summary of Contents for Bryant 559K 20 Series

  • Page 1: Table Of Contents

    5 5 9 K * 2 0 - 3 0 S i n g l e P a c k a g e R o o f t o p E l e c t r i c C o o l i n g U n i t w ith Pu ro n ®...

  • Page 2: Safety Considerations

    SAFETY CONSIDERATIONS WARNING Installation and servicing of air-conditioning equipment can be hazardous due to system pressure and electrical components. UNIT OPERATION AND SAFETY HAZARD Only trained and qualified service personnel should install, repair, or service air-conditioning equipment. Failure to follow this warning could cause personal injury, death and/or equipment damage.

  • Page 3: Unit Arrangement And Access

    UNIT ARRANGEMENT AND ACCESS SEASONAL MAINTENANCE These items should be checked at the beginning of each season (or General more often if local conditions and usage patterns dictate): Figures 1 and 2 show general unit arrangement and access Air Conditioning locations.
  • Page 4 OUTSIDE AIR HOOD SCREENS To remove the screen, lift the screen towards the upper retainer angle created by the angle along the top edge (Fig. 3, Item #3). Outside air hood inlet screens are permanent aluminum-mesh This will lift the screen above the bottom edge of the lower re- type filters.

  • Page 5: Supply Fan (Blower) Section

    Supply Fan (Direct-Drive) All 559K units have the Axion™ Fan Technology direct drive vane axial fan system. The fan is driven by an ECM motor with speed that is user set through the Unit Control Board (UCB). Speeds are fully configurable from 40% to 100% of motor’s max- imum speed.
  • Page 6 EVALUATING MOTOR SPEED The direct drive ECM blower motor uses a constant speed design. Motor speed is controlled by a 0-10 vdc signal, where 10 vdc is equal to motor’s maximum rpm. SELECTING FAN SPEED All units come factory set for 7.8 vdc or approximately 78% of the motor’s maximum speed.
  • Page 7 ESP in. wg Factory Setting: Calculator 9.0 V 6000 Field Setting: 6500 Record field setting here 7000 7500 8000 Switch Range: 8500 9000 4.1 - 7.5 9500 10.0 6.9 - 8.7 10000 7.7 - 10.0 Field Accessories: Economizer * Overlap in A, B, C switch range designed for maximum field adjustment potential.
  • Page 8 TROUBLESHOOTING THE ECM MOTOR Axion™ Fan Technology motors are designed with several built- in protections included in the motor software. If the motor detects a fault it will safely shut down. See Table 4, “Supply Fan Motor Logic and Safety Relays” on page 36 for a complete list. Troubleshooting the motor requires a voltmeter.
  • Page 9 Removing the Motor and Fan Assembly NOTE: Due to press fit design of composite Rotor on Motor, it is highly recommended that any time a motor is replaced the fan ro- tor is replaced as well. The rest of the assembly may be reused. See Fig.
  • Page 10 Disassembling Standard/Medium Motor and Fan Assembly Disassembling High Static Motor and Fan Assembly See Fig. 12. See Fig. 13. NOTE: Refer to “Model Number Nomenclature” on page 71, NOTE: Refer to “Model Number Nomenclature” on page 71, position 13 for specific unit requirements. position 13 for specific unit requirements.
  • Page 11 Reassembly of Standard/Medium Motor and Fan Assembly Reassembly of High Static Motor and Fan Assembly See Fig. 14. See Fig. 15. NOTE: Refer to “Model Number Nomenclature” on page 71, NOTE: Refer to “Model Number Nomenclature” on page 71, position 13 for specific unit requirements. position 13 for specific unit requirements.
  • Page 12 Reinstalling Motor and Fan Assembly See Fig. 16. Align motor harness/grommet at ~7 o’clock (facing installer) and align the bottom flats on right and left sides of fan stator with fan deck ribs. Drop fan assembly down into fan deck opening and slide back until aluminum stator is under the rear fan deck brackets.

  • Page 13: 2-Speed Indoor Fan Motor System

    2-Speed Indoor Fan Motor System ROUTINE CLEANING OF COIL SURFACES All 559K units with Axion™ Fan Technology come factory set to Periodic cleaning with Totaline environmentally balanced coil ® automatically adjust the indoor fan motor speed in sequence with cleaner is essential to extend the life of coils. This cleaner is avail- the unit’s ventilation, cooling, and heating operation.
  • Page 14 Clean the outer coil surface to remove surface loaded Support (Field-Supplied) fibers or dirt. See “Remove Surface Loaded Fibers” on page 13 for details. 10. Use a water hose or other suitable equipment to flush down between the 2 coil sections to remove dirt and debris. If a Top Panel coil cleaner is used be sure to rinse the coils completely before reassembly.

  • Page 15: Evaporator Coil

    Totaline Environmentally Balanced Coil Cleaner Application THERMOSTATIC EXPANSION VALVE (TXV) Equipment The TXV is a bi-flow, bleed port expansion valve with an external • 2-1/2 gallon garden sprayer equalizer. The TXVs are specifically designed to operate with • Water rinse with low velocity spray nozzle Puron refrigerant.

  • Page 16: Refrigerant System Pressure Access Ports

    Refrigerant System Pressure Access Ports V I E W W I T H T X V B U L B There are two access ports in the system: on the suction tube near I N S U L A T I O N C O V E R R E M O V E D the compressor and on the discharge tube near the compressor.

  • Page 17: Puron ® (R-410A) Refrigerant

    Amount of refrigerant charge is listed on the unit’s nameplate. Re- fer to Bryant GTAC2-5 Charging, Recovery, Recycling and Recla- Outdoor Temperature ..... . . 85°F (29°C) mation training manual and the following procedures.

  • Page 18: Cooling Charging Charts

    COOLING CHARGING CHARTS 17.5 Ton Entry Tier R-410A — Charging Chart (Unit must have both compressors and outdoor fans on high speed) 59.9 Add charge if Above Curve 48.8 37.7 26.6 Remove Charge if Below the Curve 15.5 -6.7 1034 1379 1723 2068...
  • Page 19 COOLING CHARGING CHARTS 20 Ton Entry Tier R-410A — Charging Chart (Unit must have both compressors and outdoor fans on high speed) 59.9 Add charge if Above Curve 48.8 37.7 26.6 15.5 Remove Charge if Below the Curve -6.7 1034 1379 1723 2068...
  • Page 20 COOLING CHARGING CHARTS 25 Ton Entry Tier R-410A — Charging Chart (Unit must have both compressors and outdoor fans on high speed) 59.9 Add charge if Above Curve 48.8 37.7 26.6 Remove Charge if Below the Curve 15.5 -6.7 1034 1379 1723 2068...
  • Page 21 COOLING CHARGING CHARTS 27.5 Ton Entry Tier R-410A — Charging Chart (Unit must have both compressors and outdoor fans on high speed) 59.9 Add charge if Above Curve 48.8 37.7 26.6 15.5 Remove Charge if Below the Curve -6.7 1034 1379 1723 2068...
  • Page 22 COOLING CHARGING CHARTS 17.5 Ton Entry Tier Humidi-MiZer R-410A — Charging Chart (Unit must run in subcooling mode) 59.9 Add charge if Above Curve 48.8 37.7 26.6 Remove Charge if Below the Curve 15.5 -6.7 1034 1379 1723 2068 2413 2758 3102 3447...
  • Page 23 COOLING CHARGING CHARTS 20 Ton Entry Tier Humidi-MiZer R-410A — Charging Chart (Unit must run in subcooling mode) 59.9 Add charge if Above Curve 48.8 37.7 26.6 Remove Charge if Below the Curve 15.5 -6.7 1034 1379 1723 2068 2413 2758 3102 3447...
  • Page 24 COOLING CHARGING CHARTS 25 Ton Entry Tier Humidi-MiZer R-410A — Charging Chart (Unit must run in subcooling mode) 59.9 Add charge if Above Curve 48.8 37.7 26.6 Remove Charge if Below the Curve 15.5 -6.7 1034 1379 1723 2068 2413 2758 3102 3447...
  • Page 25 COOLING CHARGING CHARTS 27.5 Ton Entry Tier Humidi-MiZer R-410A — Charging Chart (Unit must run in subcooling mode) 59.9 Add charge if Above Curve 48.8 37.7 26.6 Remove Charge if Below the Curve 15.5 -6.7 1034 1379 1723 2068 2413 2758 3102 3447...

  • Page 26: Compressor

    COMPRESSOR Compressor Rotation Lubrication CAUTION The compressor is charged with the correct amount of oil at the factory. EQUIPMENT DAMAGE HAZARD Failure to follow this caution can result in premature wear and damage to equipment. CAUTION Scroll compressors can only compress refrigerant if rotat- UNIT DAMAGE HAZARD ing in the right direction.

  • Page 27: Troubleshooting Cooling System

    Troubleshooting Cooling System Refer to Table 1 for additional troubleshooting topics. Table 1 — Troubleshooting SYMPTOM CAUSE SOLUTION Power failure. Call power company. Fuse blown or circuit breaker tripped. Replace fuse or reset circuit breaker. Determine root cause. Defective thermostat, contactor, transformer. Replacement component.

  • Page 28: Convenience Outlets

    CONVENIENCE OUTLETS Press the gasket over the screw heads. Slip the backing plate over the screw heads at the keyhole slots and align with the gasket; tighten the two screws until snug (do not over- tighten). WARNING Mount the weatherproof cover to the backing plate as shown in Fig.

  • Page 29: Duty Cycle

    SMOKE DETECTORS Smoke detectors are available as factory-installed options on 559K models. Smoke detectors may be specified for supply air only, for return air without or with economizer, or in combination of supply air and return air. Return air smoke detectors are ar- ranged for vertical return configurations only.

  • Page 30: Smoke Detector Locations

    Air is introduced to the duct smoke detector sensor’s sensing chamber through a sampling tube that extends into the HVAC duct and is directed back into the ventilation system through a (shorter) exhaust tube. The difference in air pressure between the two tubes pulls the sam- pled air through the sensing chamber.

  • Page 31: Fiop Smoke Detector Wiring And Response

    RETURN AIR SMOKE DETECTOR SENSOR WITH ECONOMIZER The sampling tube is inserted through the side plates of the econo- mizer housing, placing it across the return air opening on the unit basepan. The holes in the sampling tube face into the return air stream.

  • Page 32: Sensor And Controller Tests

    Fig. 41 — Typical Smoke Detector System Wiring SENSOR AND CONTROLLER TESTS Controller Alarm Test The controller alarm test checks the controller’s ability to initiate Sensor Alarm Test and indicate an alarm state. The sensor alarm test checks a sensor’s ability to signal an CONTROLLER ALARM TEST PROCEDURE alarm state.

  • Page 33: Dirty Controller Test

    Dirty Controller Test TO CONFIGURE THE DIRTY SENSOR TEST OPERATION The dirty controller test checks the controller’s ability to initiate a Hold the test magnet where indicated on the side of the sensor dirty sensor test and indicate its results. housing until the sensor’s Alarm LED turns on and its Dirty LED flashes twice (approximately 60 seconds).

  • Page 34: Dirty Sensor Test Using An Sd-Trk4

    Gently remove dirt and debris from around the optic plate and inside the optic housing. IMPORTANT: Failure to follow this ALERT can result in Replace the optic housing and sensor cover. an unnecessary evacuation of the facility. Connect power to the duct detector then perform a sensor If the test/reset station’s key switch is left in the alarm test.

  • Page 35: Troubleshooting

    REMOTE TEST/RESET STATION’S TROUBLE LED DOES NOT FLASH WHEN PERFORMING A DIRTY TEST, BUT Trouble THE CONTROLLER’S TROUBLE LED DOES Alarm Power Verify that the remote test/station is wired as shown in POWER Fig. 42. Repair or replace loose or missing wiring. TROUBLE ALARM Configure the sensor dirty test to activate the controller’s...

  • Page 36: Relief Device

    HIGH PRESSURE SWITCH conditions as well as over-temperature and over-current protection. If the relay is open it will remove 24V to R on the UCB The system is provided with a high pressure switch mounted on and will also prevent cooling/heating operation to protect the unit the discharge line.

  • Page 37: Electric Heaters

    ELECTRIC HEATERS Remove the block-off plate and save screws. Remove post adjacent to control box and post located between filter access The 559K units can be equipped with field-installed accessory and blower access. (See Fig. 47.) electric heaters. The heaters are modular in design, with heater Insert heater assembly through opening where block-off plate frames holding open coil resistance wires strung through ceram- was previously removed.
  • Page 38 Control Box Filter Access Blower Access Panel Panel Access Panel Electric Heater Section Access Panel Fig. 46 — Typical Unit – Access Panel Locations Post Block Off Plate Post Fig. 47 — Block-Off Plate and Post Locations...
  • Page 39 Heater Support Rails Grommets Opening For Heater Fig. 48 — Opening for Electric Heater Access Door Open Fig. 49 — Electric Heater Accessory In Place (Shown with Access Door Opened)

  • Page 40: 460V High Sccr Unit Installation

    Add second lock washer (Item 5), the top two wires shall be installed with barrels “up.” Add second nut (Item 4) and tighten to 9-10 Nm (79-88 in.-lb). For 2 wire/lug assembly: add lock washers (Item 5), wire ter- minal barrels may be up or down. Add nut (Item 4) and tighten to 9-10 Nm (79-88 in.-lb).
  • Page 41 Control Box VIEW D 460V Heater Wire VIEW C Fuse Block 4mm Allen Head Screws Blue Yellow Black Control Box Fuse Block Control Box Blue Heater Black Yellow Wires VIEW D VIEW C NOTE: Route heater wires to lugs as Shroud shown using top two holes in lugs.
  • Page 42 Cover 230V Heater Wiring VIEW G Control Box Main Fuse Blue Yellow Cover for Lugs Removed Heater Wiring Black VIEW H Control Box Line Side Main Fuse VIEW H VIEW G Power Wires 2 Heater Wires Per Terminal VIEW H 4 Heater Wires Per Terminal Fig.

  • Page 43: Economizer Systems

    ECONOMIZER SYSTEMS Outside Air Damper Economizer Actuator The unit may be equipped with a factory-installed or accessory (field-installed) economizer system with a logic control system (EconomizerONE). See Fig. 54 for component locations. Economizers use direct-drive damper actuators. IMPORTANT: Any economizer that meets the economizer requirements as laid out in California’s Title 24 mandatory Wiring section 120.2 (fault detection and diagnostics) and/or prescrip-...

  • Page 44: Economizerone (Field-Installed Accessory)

    EconomizerONE (Field-Installed Accessory) MOUNTING, INSTALLATION, AND WIRING WARNING Failure to follow this caution may result in damage to equipment. Be sure to allow enough time for compressor startup and shutdown between checkout tests so that the compressors do not short-cycle. Mounting the Economizer Controller Base Module Before mounting, leave specific mounting clearances so that there is space for mounting, wiring, and servicing.
  • Page 45 Table 5 — Economizer Control Wiring Settings LABEL TYPE DESCRIPTION RS485 Modbus A Line A RS485 Modbus B Line B ¬ GND_ISO Earth Ground Type II NTC 10K or 0-10 vdc Mixed or Discharge Air Temperature Sensor Mixed or Discharge Air Temperature Sensor Common Type II NTC 10K or 0-10 vdc Outside Air Temperature Sensor 0-10 vdc or 4-20mA...
  • Page 46 CONNECTING PERIPHERAL DEVICES TO THE ECONOMIZER CONTROLLER See Fig. 56-60 for wiring details. • Outside Air: Connect to the Mixed or Discharge Air Temperature Sensor OAT and COM terminals of the Outside Air Temperature Sensor device. • Return Air (Differential): Return Air Temperature Sensor Connect to the RAT and S-COM...
  • Page 47 • Outside Combination Temperature/ Humidity: Connect Combo Temperature and Humidity Sensor to the OAT, COM, and OAH terminals of the device. • Combo Temperature and Humidity Sensor Return Combination Temperature/ Humidity: Connect to the RAT, S-COM, and RAH terminals of the device. Fig.

  • Page 48: Economizerone (Factory Option)

    EconomizerONE (Factory Option) LED Indication NOTE: If different faulty events occur at the same time, the ECONOMIZER SETTINGS sensor/DAC LED lights up following this priority: Red  Interface Overview Yellow  Off. For example, if there is a humidity sensor error and air temperature failure at the same time, the sensor LED EconomizerONE turns red rather than yellow.
  • Page 49 Table 6 — LED Indication FREE SENSOR Power STATUS COOLING DAC LED Yellow Yellow Yellow Commissioning mode Blinking Blinking Blinking Power start-up Yellow On Yellow On Yellow On Free cooling is running Green On — — Free cooling is available Green —...
  • Page 50 Table 7 — Free Cooling Functions CONTROL MODE SENSORS USED ENABLE FREE COOLING? The outside air dry bulb temperature is compared with the set temperature Control Mode 1 OA (outside air) Temperature Sensor shutoff set point. • Fixed Dry Bulb and MA (Mixed Air) Temperature Sensor If the outside air dry bulb temperature is below the temperature shutoff set point, then the outside air is used to meet all or part of the cooling demand.
  • Page 51 Table 11 — Different Fan Speeds with Different Table 8 — 1 and 2-Stage Cooling Stage I/O Logic Configured Outputs ECONOMIZER COOLING COOLING CONDITION MET STAGE 1 STAGE 2 FAN TYPE 1-SPEED COOLING 2-STAGE COOLING • Spd H (regardless of •...
  • Page 52 Table 13 — Different Damper Position Setting with Different Configured Outputs (DCV is Enabled) FAN TYPE 1-STAGE COOLING 2-STAGE COOLING • 2VENTMIN H to 2VENTMAX H (regardless of • 2VENTMIN H to 2VENTMAX H (regardless of 1-SPEED FAN cooling demand, OCC=Yes) cooling demand, OCC=Yes) •...
  • Page 53 • If Exhaust Fan 2 is connected and configured, then Fault Detection and Diagnostics Exhaust Fan 2 parameter group (L, M, and H) is available, The economizer controller can detect and diagnose free cooling depending on fan configuration. faults, sensor operation faults, and damper modulating faults. It •...
  • Page 54 WIRING WARNING Failure to follow this caution may result in damage to equipment. Be sure to allow enough time for compressor startup and shutdown between checkout tests so that the compressors do not short-cycle. Mounting Devices Connected to the Economizer Controller Devices like damper actuators, sensors (temperature sensor, hu- midity sensor, combination temperature and humidity sensor, CO sensor), thermostats, and exhaust fans can be connected to the...
  • Page 55 Table 15 — Economizer Control Wiring Settings LABEL TYPE DESCRIPTION RS485 Modbus A Line A RS485 Modbus B Line B ¬ GND_ISO Earth Ground Type II NTC 10K or 0-10 vdc Mixed or Discharge Air Temperature Sensor Mixed or Discharge Air Temperature Sensor Common Type II NTC 10K or 0-10 vdc Outside Air Temperature Sensor 0-10 vdc or 4-20mA...
  • Page 56 Connecting Peripheral Devices to the Economizer Controller See Fig. 68-72 for wiring details. • Outside Air: Connect to the Mixed or Discharge Air Temperature Sensor OAT and COM terminals of the Outside Air Temperature Sensor device. • Return Air (Differential): Return Air Temperature Sensor Connect to the RAT and S-COM...
  • Page 57 • Outside Combination Temperature/ Humidity: Connect Combo Temperature and Humidity Sensor to the OAT, COM, and OAH terminals of the device. • Combo Temperature and Humidity Sensor Return Combination Temperature/ Humidity: Connect to the RAT, S-COM, and RAH terminals of the device. Fig.

  • Page 58: Setup And Configuration

    SETUP AND CONFIGURATION NOTE: Parameters and display menus may display differently/dynamically if different applications are config- ured. See Tables 16-23. IMPORTANT: Before setup and configuration, it is recom- mended to obtain some location-based values, such as shutoff points, or utilize the location services in the Climatix ™...
  • Page 59 Table 16 — Status Display PARAMETER DESCRIPTION VALUE 1FREECOOL Indicates if the system can use outdoor air for free cooling. 1ECON ENAB Indicates if outdoor air is being used for the first stage of cooling. Indicates if the space is occupied. If users choose ALWAYS for 6OCC when configuring I/Os, the parameter value is YES;...
  • Page 60 Table 17 — Parameter Settings — Basic PARAMETER DESCRIPTION RANGE DEFAULT Temperature shutoff set point can be obtained automatically if a smartphone or tablet is connected to the network provided by a Wi-Fi/WLAN stick 2 TEMP OFF plugged into the Economizer Controller and the mobile application is 48...80°F;...
  • Page 61 Table 18 — Parameter Settings — Advanced PARAMETER DESCRIPTION VALUE/RANGE DEFAULT 3FREEZE POS Anti-freeze protection damper position (closed or minimum). 3SD ACT POS Damper position during shutdown (open or closed). MAT sensor location: • Choose MAT if the sensor is installed before the DX (Direct Expansion) coil. 3DIF T LOC •...
  • Page 62 Table 19 — Parameter Settings — I/O Configurations (cont) PARAMETER DESCRIPTION VALUE DEFAULT Choose ACT FB if feedback signal is available from the connected damper ACT FB 6AUX-AI2 ACT FB actuator. Otherwise, choose NONE. NONE Choose “COOL 2” if Cooling Stage 2 is available (another compressor is COOL 2 6Y2O COOL 2...
  • Page 63 Table 22 — Enter Running State PARAMETER DESCRIPTION 8RUN STATE Change to Running State. Press Enter to confirm the change. 8ENTER RUN? Confirm the change to Running State. Perform factory reset. Press Enter to confirm the reset. (This action resets the controller 8FACTORY DEF password to default: OneBT.) 8DEF CONFIRM?
  • Page 64 2.75" (70 mm) 3.95" (100 mm) NOTE: Dimensions in inches (mm). Fig. 73 — HH57LW001 Dimensional, Connection and Switching Information 1.327 Max 18.0±0.25 1/4" Stud Hole 0.531±0.008 20 AWG 7/28 PVC Insulated Wire 1/8" ø Black 2-520102-2 (one black/one red) Polyolefin Heat Shrink Insulation Connectors...
  • Page 65 U.S. and Canada I-Codes / ASHRAE Zones Climate Zone 1 Climate Zone 5 and Marine Climate Zone 2 Climate Zone 6 Climate Zone 3 Climate Zone 7 and 8 Climate Zone 4 (Except Marine) Fig. 77 — U.S. and Canada Climate Zones Table 24 —...
  • Page 66 Economizers are shipped standard with an HH79NZ039 outside Table 25 — California Title 24 Regional High Limit Dry air dry bulb sensor (refer to Fig. 74). System default setting (high Bulb Temperature Settings temp limit) is 63°F (17°C) and has a range of 48°F to 80°F (9°C to REQUIRED HIGH LIMIT 27°C).

  • Page 67: Electric Shock Hazard

    CHECKOUT NOTE: All settings are stored in non-volatile flash memory. Status Inspect all wiring connections at the economizer module’s termi- nals, and verify compliance with the installation wiring diagrams. Use the Status menu (refer to Table 16) to check the parameter For checkout, review the Status of each configured parameter and values for the various devices and sensors configured.

  • Page 68: Troubleshooting

    TROUBLESHOOTING For EconomizerONE troubleshooting issues, see Table 27. Table 27 — Operating Issues and Concerns SYMPTOM REASON SOLUTION An alarm is displayed on the Sensor, damper, or the whole working Check sensor, damper, or the whole working system following the detailed alarm information. system may not work properly DAC LED is blinking RED Damper slippage...

  • Page 69: Pre-Start-Up/Start-Up

    PRE-START-UP/START-UP Verify the following conditions: a. Make sure that condenser-fan blade are correctly posi- tioned in fan orifice. See Condenser Fan Adjustment sec- WARNING tion for more details. b. Make sure that air filter(s) is in place. PERSONAL INJURY HAZARD c.

  • Page 70: Cooling

    On 3-phase units with scroll compressors, it is important to be First stage of thermostat energizes the first stage of the electric certain compressor is rotating in the proper direction. To deter- heaters. Second stage of thermostat energizes the second stage mine whether or not compressor is rotating in the proper of electric heaters (if installed).

  • Page 71: Appendix A - Model Number Nomenclature

    APPENDIX A — MODEL NUMBER NOMENCLATURE Position: 9 10 11 12 13 14 15 16 17 Example: Unit Type Packaging and Control 559 = Cooling RTU with optional A = Standard Packaging, electromechanical Electric Heat, Legacy™ Line controls, no intake or exhaust option. Will allow for use of all field-installed econo- mizers, manual or two-position damper.

  • Page 72: Evaporator Coil

    APPENDIX B — PHYSICAL DATA 559K 20 to 24 Physical Data 559K UNIT 559K*20N 559K*20R 559K*24N 559K*24R NOMINAL TONS 17.5 17.5 20.0 20.0 BASE UNIT OPERATING WT (lb) 1673 1673 1873 1873 REFRIGERATION SYSTEM No. Circuits / No. Compressors / Type 1 / 2 / Scroll 1 / 2 / Scroll 1 / 2 / Scroll...
  • Page 73 APPENDIX B — PHYSICAL DATA (cont) 559K 28 to 30 Physical Data 559K UNIT 559K*28N 559K*28R 559K*30N 559K*30R NOMINAL TONS 25.0 25.0 27.5 27.5 BASE UNIT OPERATING WT (lb) 2047 2047 2224 2224 REFRIGERATION SYSTEM No. Circuits / No. Compressors / Type 1 / 2 / Scroll 1 / 2 / Scroll 1 / 2 / Scroll...

  • Page 74: Appendix C - Fan Performance

    APPENDIX C — FAN PERFORMANCE GENERAL FAN PERFORMANCE NOTES For information on the electrical properties of the fan motors, please see the Electrical information section of the product Interpolation is permissible. Do not extrapolate. data book. External static pressure is the static pressure difference For more information on the performance limits of the fan between the return duct and the supply duct plus the static motors, see the application data section of the product data...
  • Page 75 APPENDIX C — FAN PERFORMANCE (cont) 559K*20N — 17.5 Ton Vertical Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 5250 1048 0.86 1162 1.18 1268 1.53 1366 1.91 1457 2.32 5690 1116 1.05 1220 1.37 1322 1.74 1417 2.14 1505 2.56...
  • Page 76 APPENDIX C — FAN PERFORMANCE (cont) 559K*20N – High Static — 17.5 Ton Vertical Supply (rpm - vdc) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 5250 1048 1162 1268 1366 1457 5690 1116 1220 1322 1417 1505 6125 1185 1281 1377 1469 1555 6565...
  • Page 77 APPENDIX C — FAN PERFORMANCE (cont) 559K*24N — 20 Ton Vertical Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 6000 1166 1.19 1263 1.52 1361 1.90 1454 2.31 1540 2.75 6500 1246 1.45 1335 1.79 1427 2.18 1515 2.61 1598 3.06...
  • Page 78 APPENDIX C — FAN PERFORMANCE (cont) 559K*24N – High Static — 20 Ton Vertical Supply (rpm - vdc) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 6000 1166 1263 1361 1454 1540 6500 1246 1335 1427 1515 1598 7000 1329 1409 1493 1578 1658 7500...
  • Page 79 APPENDIX C — FAN PERFORMANCE (cont) 559K*28N — 25 Ton Vertical Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 7500 1105 1.30 1181 1.58 1263 1.93 1351 2.37 1441 2.87 8125 1183 1.60 1252 1.90 1326 2.25 1405 2.68 1487 3.18...
  • Page 80 APPENDIX C — FAN PERFORMANCE (cont) 559K*28N – High Static — 25 Ton Vertical Supply (rpm - vdc) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 3000 1105 1181 1263 1351 1441 3250 1183 1252 1326 1405 1487 3500 1263 1326 1393 1464 1538 3750...
  • Page 81 APPENDIX C — FAN PERFORMANCE (cont) 559K*30N — 27.5 Ton Vertical Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 8250 1193 1.64 1260 1.94 1332 2.29 1408 2.70 1488 3.19 8940 1281 2.04 1341 2.34 1406 2.70 1474 3.11 1546 3.59...
  • Page 82 APPENDIX C — FAN PERFORMANCE (cont) 559K*30N – High Static — 27.5 Ton Vertical Supply (rpm - vdc) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 8250 1193 1260 1332 1408 1488 8940 1281 1341 1406 1474 1546 9625 1369 1425 1483 1545 1609 10300...
  • Page 83 APPENDIX C — FAN PERFORMANCE (cont) 559K*20N — 17.5 Ton Horizontal Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 5250 1190 1.01 1293 1.30 1390 1.61 1482 1.95 1569 2.32 5690 1271 1.22 1366 1.52 1458 1.85 1546 2.20 1629 2.58...
  • Page 84 APPENDIX C — FAN PERFORMANCE (cont) 559K*24N — 20 Ton Horizontal Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 6000 1328 1.39 1420 1.69 1508 2.03 1592 2.39 1674 2.78 6500 1422 1.68 1508 2.00 1590 2.34 1670 2.71 1747 3.11...
  • Page 85 APPENDIX C — FAN PERFORMANCE (cont) 559K*28N — 25 Ton Horizontal Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 7500 1415 2.15 1491 2.51 1568 2.92 1645 3.37 1719 3.85 8125 1519 2.65 1589 3.03 1660 3.46 1732 3.93 1801 4.42...
  • Page 86 APPENDIX C — FAN PERFORMANCE (cont) 559K*30N — 27.5 Ton Horizontal Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 8250 1530 2.70 1599 3.09 1669 3.51 1739 3.97 1808 4.46 8940 1645 3.33 1709 3.74 1773 4.18 1837 4.64 1902 5.15...

  • Page 87: Appendix D - Wiring Diagrams

    APPENDIX D — WIRING DIAGRAMS 559K*20-30 Standard SCCR Wiring Diagrams Size V-Ph-Hz Page Control Wiring Page Power Wiring 208/230-3-60 50HE006329 50HE003738 559K*20-28 Electromechanical 460-3-60 50HE003758 with POL224 50HE006330 Controller 575-3-60 50HE003759 208/230-3-60 50HE006329 50HE003739 559K*30 Electromechanical 460-3-60 50HE003760 with POL224 50HE006330 Controller 575-3-60...
  • Page 88 APPENDIX D — WIRING DIAGRAMS (cont) Fig. B — Typical 559K*20-30 Electromechanical with POL224 Controller (208/230-3-60)
  • Page 89 APPENDIX D — WIRING DIAGRAMS (cont) Fig. C — Typical 559K*20-30 Electromechanical with POL224 Controller (460, 575-3-60)
  • Page 90 APPENDIX D — WIRING DIAGRAMS (cont) Fig. D — Typical 559K*20-28 Power Wiring Diagram, Electromechanical with POL224 (208/230-3-60)
  • Page 91 APPENDIX D — WIRING DIAGRAMS (cont) Fig. E — Typical 559K*20-28 Power Wiring Diagram, Electromechanical with POL224 (460-3-60)
  • Page 92 APPENDIX D — WIRING DIAGRAMS (cont) Fig. F — Typical 559K*20-28 Power Wiring Diagram, Electromechanical with POL224 (575-3-60)
  • Page 93 APPENDIX D — WIRING DIAGRAMS (cont) Fig. G — Typical 559K*30 Power Wiring Diagram, Electromechanical with POL224 (208/230-3-60)
  • Page 94 APPENDIX D — WIRING DIAGRAMS (cont) Fig. H — Typical 559K*30 Power Wiring Diagram, Electromechanical with POL224 (460-3-60)
  • Page 95 APPENDIX D — WIRING DIAGRAMS (cont) Fig. I — Typical 559K*30 Power Wiring Diagram, Electromechanical with POL224 (575-3-60)
  • Page 96 APPENDIX D — WIRING DIAGRAMS (cont) Fig. J — Typical 559K*20-30 Electromechanical with POL224 Controller – High SCCR (208/230-3-60)
  • Page 97 APPENDIX D — WIRING DIAGRAMS (cont) Fig. K — Typical 559K*20-30 Electromechanical with POL224 Controller – High SCCR (460, 460-3-60)
  • Page 98 APPENDIX D — WIRING DIAGRAMS (cont) Fig. L — Typical 559K*20-28 Power Wiring Diagram, Electromechanical with POL224 – High SCCR (208/230-3-60)
  • Page 99 APPENDIX D — WIRING DIAGRAMS (cont) Fig. M — Typical 559K*20-28 Power Wiring Diagram, Electromechanical with POL224 – High SCCR (460-3-60)
  • Page 100 APPENDIX D — WIRING DIAGRAMS (cont) Fig. N — Typical 559K*30 Power Wiring Diagram, Electromechanical with POL224 – High SCCR (208/230-3-60)
  • Page 101 APPENDIX D — WIRING DIAGRAMS (cont) Fig. O — Typical 559K*30 Power Wiring Diagram, Electromechanical with POL224 – High SCCR (460-3-60)

  • Page 102: Appendix E - Low Ambient Control Sensor Location

    APPENDIX E — LOW AMBIENT CONTROL SENSOR LOCATION T O P O F C O I L T O P O F C O I L S E N S O R P O S I T I O N S E E N O T E # 1 S E N S O R P O S I T I O N S E E N O T E # 1...

  • Page 103: Preliminary Information

    START-UP CHECKLIST 559K*20-30 Single Package Rooftop 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 sections of this Service and Maintenance Instruction document.
  • Page 104 PRESSURES Refrigerant Suction _____________ PSIG Refrigerant Discharge _____________ PSIG Verify Refrigerant Charge using Charging Charts (Y/N) ______ GENERAL Economizer minimum vent and changeover settings to job requirements (if equipped) (Y/N) ______ Verify smoke detector unit shutdown by utilizing magnet test (Y/N) ______ Verify outdoor fan operation.

This manual is also suitable for:

559k 24 series559k 28 series559k 30 series

Table of Contents