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Bryant 547K 04-07 Series Service And Maintenance Instructions

Single package rooftop heat pump with puron (r-410a) refrigerant 3 to 6 nominal tons
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5 4 7 K * 0 4 - 0 7
Single Package Rooftop Heat Pump
with P ur on
®
( R-4 1 0A ) Refr i g er an t
3 to 6 Nominal Tons
Service and Maintenance Instructions
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 2
UNIT ARRANGEMENT AND ACCESS . . . . . . . . . . . . . . 3
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
SUPPLY FAN (BLOWER) SECTION . . . . . . . . . . . . . . . . 4
Supply Fan (Direct-Drive) . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2-Speed Indoor Fan Motor System . . . . . . . . . . . . . . . . . . . 9
COOLING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Condenser Coil (Outdoor) . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Evaporator Coil (Indoor) . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Recommendation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
EVAPORATOR COIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Refrigeration System Components . . . . . . . . . . . . . . . . . . 11
Evaporator Coil Metering Devices . . . . . . . . . . . . . . . . . . 13
TXV Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Replacing TXV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Refrigerant System Pressure Access Ports . . . . . . . . . . . . 14
PURON (R-410A) REFRIGERANT . . . . . . . . . . . . . . . . . 14
Refrigerant Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
COOLING CHARGING CHARTS . . . . . . . . . . . . . . . . . 15
COMPRESSOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Replacing Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Compressor Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Filter Drier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Condenser-Fan Adjustment . . . . . . . . . . . . . . . . . . . . . . . . 17
Troubleshooting Cooling System . . . . . . . . . . . . . . . . . . . . 19
CONVENIENCE OUTLETS . . . . . . . . . . . . . . . . . . . . . . 20
Convenience Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Installing Weatherproof Cover . . . . . . . . . . . . . . . . . . . . . 20
Non-Powered Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Unit-Powered Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Duty Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Fuse on Powered Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
COMMERICAL DEFROST CONTROL . . . . . . . . . . . . 21
Reversing Valve Control . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Compressor Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Auxiliary (Electric) Heat control . . . . . . . . . . . . . . . . . . . . 22
Defrost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
ELECTRIC HEATERS . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Safety Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Completing Heater Installation . . . . . . . . . . . . . . . . . . . . . 24
SMOKE DETECTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53547015-01
Page
Printed in U.S.A.
Form No. SM547K-4-7-02
Smoke Detector Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Smoke Detector Locations . . . . . . . . . . . . . . . . . . . . . . . . . 25
Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
SENSOR AND CONTROLLER TESTS . . . . . . . . . . . . . 28
Sensor Alarm Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Controller Alarm Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Dirty Controller Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Dirty Sensor Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Changing the Dirty Sensor Test . . . . . . . . . . . . . . . . . . . . 28
Remote Station Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
SD-TRM4 Remote Alarm Test Procedure . . . . . . . . . . . . 29
Dirty Sensor Test Using an SD-TRM4 . . . . . . . . . . . . . . . 29
Detector Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
PROTECTIVE DEVICES . . . . . . . . . . . . . . . . . . . . . . . . . 30
Compressor Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Relief Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Control Circuit, 24-V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
RTU OPEN CONTROL SYSTEM . . . . . . . . . . . . . . . . . . 31
Sensory/Accessory Installation . . . . . . . . . . . . . . . . . . . . . 31
ECONOMIZER SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . 33
EconoMi$er 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
EconoMi$er X (Factory Option) . . . . . . . . . . . . . . . . . . . . 42
PRE-START-UP/START-UP . . . . . . . . . . . . . . . . . . . . . . 56
START-UP, GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Unit Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Additional Installation/Inspection . . . . . . . . . . . . . . . . . . 57
Return-Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Outdoor-Air Inlet Screens . . . . . . . . . . . . . . . . . . . . . . . . . 57
Compressor Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Internal Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Refrigerant Service Ports . . . . . . . . . . . . . . . . . . . . . . . . . 57
Compressor Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Refrigerant Service Ports . . . . . . . . . . . . . . . . . . . . . . . . . 57
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Ventilation (Continuous Fan) . . . . . . . . . . . . . . . . . . . . . . 58
FASTENER TORQUE VALUES . . . . . . . . . . . . . . . . . . . 58
START-UP, RTU OPEN CONTROLS . . . . . . . . . . . . . . 58
APPENDIX A - MODEL NUMBER
NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
APPENDIX B - PHYSICAL DATA . . . . . . . . . . . . . . . . 60
APPENDIX C - FAN PERFORMANCE . . . . . . . . . . . . 62
APPENDIX D - WIRING DIAGRAMS . . . . . . . . . . . . . 91
SENSOR LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . 102
START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . . . . . CL-1
Pg 1
7-23
Replaces: SM547K-4-7-01

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Summary of Contents for Bryant 547K 04-07 Series

  • Page 1: Table Of Contents

    5 4 7 K * 0 4 - 0 7 Single Package Rooftop Heat Pump with P ur on ® ( R-4 1 0A ) Refr i g er an t 3 to 6 Nominal Tons Service and Maintenance Instructions CONTENTS Smoke Detector Sensor .

  • Page 2: Safety Considerations

    SAFETY CONSIDERATIONS Installation and servicing of air-conditioning equipment can be WARNING hazardous due to system pressure and electrical components. UNIT OPERATION AND SAFETY HAZARD Only trained and qualified service personnel should install, re- pair, or service air-conditioning equipment. Untrained person- Failure to follow this warning could cause personal injury, nel can perform the basic maintenance functions of replacing death and/or equipment damage.

  • Page 3: Unit Arrangement And Access

    UNIT ARRANGEMENT AND ACCESS • Check refrigerant charge level • Ensure indoor coils are clean General • Check supply blower motor amperage Figures 1 and 2 show general unit arrangement and access Electric Heating locations. • Inspect power wire connections Filter Access Panel •...

  • Page 4: Supply Fan (Blower) Section

    SUPPLY FAN (BLOWER) SECTION 17-1/4" WARNING ELECTRICAL OPERATION HAZARD Failure to follow this warning could result in personal injury or death. Before performing service or maintenance operations on unit, LOCKOUT/TAGOUT the main power switch to unit. Divider Electrical shock and rotating equipment could cause severe injury.
  • Page 5 EVALUATING MOTOR SPEED “ON” (1). See Table 1. The DIP switch positions can also be found on the unit's control label diagram. The direct drive ECM blower motor uses a constant speed de- sign. Motor speed is controlled by a 0-10 vdc signal, where Table 1 —...
  • Page 6 ESP in. wg Factory Setting: Calculator 9.0 V 1500 Field Setting: 1625 Record field setting here 1750 1875 2000 Switch Range: 2125 10.0 2250 4.1 - 7.5 2375 6.9 - 8.7 2500 7.7 - 10.0 Field Accessories: Economizer * Overlap in A, B, C switch range 1 Stage E Heat designed for maximum field adjustment potential.
  • Page 7 TROUBLESHOOTING THE ECM MOTOR Axion™ motors are designed with several built-in protections included in the motor software. If the motor detects a fault it will safely shut down. For temperature related faults the motor requires a line voltage reset to continue operation. For all oth- ers, the motor will resume operation automatically as soon as the fault condition is cleared.
  • Page 8 Disassembling Motor and Fan Assembly See Fig. 11. Remove 6 screws from retaining rings in the top of the fan rotor. Remove rotor from motor. Remove 4 screws connecting motor to stator flange. Remove stator from motor. If required, remove stator limit switch on aluminum stator. Remove 3 screws from the heat shield.

  • Page 9: 2-Speed Indoor Fan Motor System

    Set retaining rings (x3) into composite rotor and install COOLING 6 no. 10-32 x 1/2 in. hex head machine screws (P/N: AD07AB126) through the holes in retaining rings. Tighten to 23 in.-lb (2.6 Nm). It is recommended this WARNING screw installation be done in a star pattern. 10.
  • Page 10 procedures to ensure long life of the coil. Failure to clean the Remove the compressor access panel to access the lower coils may result in reduced durability in the environment. coil clip. The condenser coil corner post may also be removed.

  • Page 11: Evaporator Coil

    11. Move the inner coil back into position. Reinstall the lower Thoroughly apply Totaline environmentally balanced coil and upper coil clips. Reinstall the top panel and replace all cleaner solution to all coil surfaces including finned area, screws. tube sheets, and coil headers. Hold garden sprayer nozzle close to finned areas and apply Totaline Environmentally Balanced Coil Cleaner Application cleaner with a vertical, up-and-down motion.
  • Page 12 LPS/LOC Filter Drier Cooling Liquid Line DFT 1 Acutrol Acutrol Indoor Coil Outdoor Coil Strainer Accurater Heating Mode Liquid Line Fig. 18 — 547K*04-06 Piping Schematic — One-Stage Cooling Filter LPS/LOC Drier Cooling Liquid Line DFT 1 Acutrol Indoor Coil Outdoor Coil Strainer Heating Mode Liquid Line...

  • Page 13: Evaporator Coil Metering Devices

    THERMOSTATIC EXPANSION VALVE (TXV) Table 3 — Cooling Mode (each circuit) All 547K*07 units include TXV control. The TXV is a bi-flow, COMPONENTS STATUS/POSITION bleed port expansion valve with an external equalizer. The Reversing Valve Energized TXVs are specifically designed to operate with Puron ®...

  • Page 14: Refrigerant System Pressure Access Ports

    Refrigerant System Pressure Access Ports There are 2 access ports in the system: on the suction tube near the compressor and on the discharge tube near the compressor. These are brass fittings with black plastic caps. The hose con- nection fittings are standard 1/4 in. SAE male flare couplings. The brass fittings are 2-piece high flow valves, with a recepta- cle base brazed to the tubing and an integral spring-closed check valve core screwed into the base.

  • Page 15: Refrigerant Charge

    Refrigerant Charge COOLING CHARGING CHARTS Amount of refrigerant charge is listed on the unit’s nameplate. Refer to Bryant GTAC2-5 Charging, Recovery, Recycling and Cooling Charging Chart Std 3 Ton Heat Pump R-410A Refrigerant Reclamation training manual and the following procedures.

  • Page 16: Compressor

    Cooling Charging Chart Std 6 Ton Heat Pump Cooling Charging Chart Std 4 Ton Heat Pump (Three Phase) R-410A Refrigerant R-410A Refrigerant (Unit must run in cooling mode, on high stage (Unit must be operated in cooling mode) 1241 compressors & outdoor fan on high speed) OUTDOOR 59.9 TEMP...

  • Page 17: Replacing Compressor

    The suction pressure should drop and the discharge pres- sure should rise, as is normal on any start-up. WARNING NOTE: If the suction pressure does not drop and the discharge pressure does not rise to normal levels, the evaporator fan is prob- FIRE, EXPLOSION HAZARD ably also rotating in the wrong direction.
  • Page 18 No Screw (Blank Tab) Fig. 28 — Condenser-Fan Assembly — Screw Pattern Sequence...

  • Page 19: Troubleshooting Cooling System

    Troubleshooting Cooling System Refer to Table 6 for additional troubleshooting topics. Table 6 — 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 20: 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 2 screws until snug (do not over-tighten). WARNING Mount the weatherproof cover to the backing plate as shown in Fig.

  • Page 21: Duty Cycle

    USING UNIT-MOUNTED CONVENIENCE OUTLETS Units with unit-mounted convenience outlet circuits will often require that 2 disconnects be opened to de-energize all power to the unit. Treat all units as electrically energized until the convenience outlet power is also checked and de-energization is confirmed.

  • Page 22: Reversing Valve Control

    Fig. 33 — Defrost Control Board Location — 547K*04-07 Electro-Mechanical Units Table 7 — 547K Defrost Board I/O and Jumper Configurations POINT NAME TYPE OF I/O CONNECTION PIN NUMBER UNIT CONNECTION NOTE INPUTS G Fan DI, 24 vac P2-3 CTB-G Y1 Cool 1 DI, 24 vac P2-5...

  • Page 23: Defrost

    Defrost The defrost control mode is a time/temperature sequence. There are 2 time components: The continuous run period and the test/defrost cycle period. The temperature component is provided by Defrost Thermostat 1 and 2 (DFT1 and DFT2) mounted on the outdoor coil. The continuous run period is a fixed time period between the end of the last defrost cycle (or start of the current Heating cy- cle) during which no defrost will be permitted.

  • Page 24: Single Point Boxes And Supplementary Fuses

    Single Point Boxes and Supplementary Fuses When the unit MOCP device value exceeds 60A, unit-mounted supplementary fuses are required for each heater circuit. These Stator Manual fuses are included in accessory single point boxes, with power Reset Limit distribution and fuse blocks. The single point box will be Switch installed directly under the unit control box, just to the left of the partition separating the indoor section (with electric heat-...

  • Page 25: Smoke Detectors

    SMOKE DETECTORS Duct Smoke Sensor Smoke detectors are available as factory-installed options on 547K models. Smoke detectors may be specified for supply air only, for return air without or with economizer, or in combina- tion of supply air and return air. Return air smoke detectors are arranged for vertical return configurations only.

  • Page 26: Completing Installation Of Return Air Smoke

    RETURN AIR SMOKE DETECTOR SENSOR WITH ECONOMIZER The sampling tube is inserted through the side plates of the Supply Air Smoke Detector economizer housing, placing it across the return air opening on the unit basepan. See Fig. 45. The holes in the sampling tube face downward, into the return air stream.

  • Page 27: Fiop Smoke Detector Wiring And Response

    Remove the return air smoke sensor module and its FIOP Smoke Detector Wiring and Response detector plate. ALL UNITS Rotate the detector plate so the sensor is facing outwards and the sampling tube connection is on the bottom. See The FIOP smoke detector is configured to automatically shut Fig.

  • Page 28: Sensor And Controller Tests

    SENSOR AND CONTROLLER TESTS IMPORTANT: Failure to follow this ALERT can result in an Sensor Alarm Test unnecessary evacuation of the facility. Holding the test magnet against the sensor housing for more The sensor alarm test checks a sensor’s ability to signal an than 7 seconds will put the duct detector into the alarm state alarm state.

  • Page 29: Sd-Trm4 Remote Alarm Test Procedure

    SD-TRM4 Remote Alarm Test Procedure Hold the test magnet to the target area for 7 seconds. IMPORTANT: OPERATIONAL TEST ALERT Verify that the test/reset station’s Alarm LED turns on. Failure to follow this ALERT can result in an unnecessary Reset the sensor by holding the test magnet to the target evacuation of the facility.

  • Page 30: Troubleshooting

    Troubleshooting Table 10 — Detector Indicators CONTROLLER’S TROUBLE LED IS ON CONTROL OR DESCRIPTION INDICATOR Check the Trouble LED on each sensor connected to the Resets the sensor when it is in the alarm or trouble controller. If a sensor’s Trouble LED is on, determine the Magnetic test/ state.

  • Page 31: Relief Device

    Failure to follow this warning could result in personal The RTU Open controller is an integrated component of the injury, death and/or equipment damage. Bryant rooftop unit. Its internal application programming Disconnect and lockout/tag-out electrical power before provides optimum performance and energy efficiency. RTU wiring the RTU Open controller.
  • Page 32 Board Power (AO-1) 0-10VDC 4-20mA BO-1 BO-2 BO-3 BO-4 BO-5 VAF Output AO-2 BO-6 (2-10V) BO-6 3-Volt BO-7 (H) Humidimizer Lithium Battery BO-8 BO-8 (Power Exhaust) LonWorks Option Card Port Network Comm Example set for BACnet MS/TP and 76.8K baud (1, 2, and 4 ON) Recommended for all Protocol Selector...

  • Page 33: Additional Rtu Open Installation And Troubleshooting

    Additional RTU Open Installation and Outside Air Troubleshooting Temperature Sensor Additional installation, wiring and troubleshooting information Low Ambient for the RTU Open Controller can be found in the following EconoMi$er IV Sensor manual: “RTU Open Multi-Protocol Controller Factory- Controller (W7212) Installed Option —...

  • Page 34: Economi$Er 2

    EconoMi$er 2 IMPORTANT: The optional EconoMi$er 2 does not ® include a controller. The EconoMi$er 2 is operated by a 4 to 20 mA signal from an existing field-supplied controller. See Fig. 56 for wiring information. BLACK Transformer Ground BLUE 500 OHM Resistor VIOLET...

  • Page 35: Economi$Er Iv (Field-Installed Accessory)

    EconoMi$er IV (Field-Installed Accessory) IMPORTANT: For 547K rooftop units EconoMi$er IV is available as a factory-installed option for 04-06 units only. ECONOMI$ER IV STANDARD SENSORS Troubleshooting instructions are enclosed. A functional view of the EconoMi$er ® IV accessory is shown in Fig. 57. Typical settings, sensor ranges, and jumper positions are also shown.
  • Page 36 Table 11 — EconoMi$er IV Input/Output Logic INPUTS OUTPUTS Demand Enthalpy Compressor N Terminal Controlled Ventilation Outdoor Return Stage 1 Stage 2 Occupied Unoccupied (DCV) High (Free Cooling Minimum position Closed LED Off) Below Set (DCV LED Modulating Modulating (between Off) (between minimum position closed and full-open)
  • Page 37 Outdoor Enthalpy Changeover Table 12 — Supply Air Sensor Temperature/Resistance Values enthalpy control, accessory enthalpy sensor (P/N: HH57AC078) is required. Replace the standard outdoor TEMPERATURE (°F) RESISTANCE (ohms) dry bulb temperature sensor with the accessory enthalpy sensor –58 220,250 in the same mounting location. See Fig. 63. When the outdoor –40 100,000 air enthalpy rises above the outdoor enthalpy changeover set...
  • Page 38 Horizontal Economizer Barometric Relief Flow Vertical Economizer Barometric Relief Flow 2500 2500 Horizontal Economizers Vertical Economizers 2000 2000 1500 1500 3-5 Ton 3-5 Ton 6 Ton 6 Ton 1000 1000 0.05 0.15 0.25 0.05 0.15 0.25 Return Duct Static Pressure (in. wg) Return Duct Static Pressure (in.
  • Page 39 Exhaust Set Point Adjustment The exhaust set point will determine when the exhaust fan runs (29) (32) (35) (38) (41) (43) based on damper position (if accessory power exhaust is in- CONTROL POINT CONTROL stalled). The set point is modified with the Exhaust Fan set APPROX.
  • Page 40 EconoMi$er IV control will be in occu- Use setting 1 or 2 for Bryant equipment. pied mode. When the timeclock contacts are open (removing the 24-v signal from terminal N), the EconoMi$er IV will be in Press Clear and Mode buttons.
  • Page 41 Set minimum position, DCV set point, and exhaust poten- DCV MINIMUM AND MAXIMUM POSITION tiometers fully CCW (counterclockwise). To check the DCV minimum and maximum position: 10. Set DCV maximum position potentiometer fully CW Make sure EconoMi$er IV preparation procedure has been (clockwise).

  • Page 42: Economi$Er X (Factory Option)

    EconoMi$er X (Factory Option) Economizer Module The module is the core of the EconoMi$er X system. The mod- The EconoMi$er X system is an expandable economizer con- ® ule is mounted in the unit’s control box, and includes the user trol system, which includes a W7220 economizer module (con- interface for the system.
  • Page 43 INPUTS Sensors NOTE: A Mixed Air (MA) analog sensor is required on all W7220 units; either an Outdoor Air (OA) sensor for dry bulb change over or an OA bus sensor for outdoor enthalpy change over is required in addition to the MA sensor. An additional Re- turn Air (RA) bus sensor can be added to the system for differen- tial enthalpy or dry bulb changeover.
  • Page 44 Table 14 — Economizer Module — Table 15 — P/N HH57AC081 Sensor Wiring Terminations Right Hand Terminal Blocks TERMINAL TYPE DESCRIPTION LABEL TYPE DESCRIPTION NUMBER LABEL Top Right Terminal Blocks S-BUS Communications AUX2 I 24 vac IN The first terminal is not used. S-BUS S-BUS (Enthalpy Control...
  • Page 45 INTERFACE OVERVIEW Press the (Enter) button to display the value of the This section describes how to use the EconoMi$er X user ® currently displayed item. interface for: Press the ▲ button to increase (change) the displayed parameter value. • Keypad and menu navigation Press the ▼...
  • Page 46 Table 17 — W7220 Menu Structure PARAMETER PARAMETER EXPANDED PARAMETER NAME MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT FIRST STAGE COOLING DEMAND (Y1–IN) ECON AVAIL YES/NO YES = economizing available; the system can use outside air for free cooling when required. FIRST STAGE COOLING RELAY OUTPUT ECONOMIZING YES/NO...
  • Page 47 Table 17 — W7220 Menu Structure (cont) PARAMETER PARAMETER EXPANDED PARAMETER NAME MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT EXHAUST STAGE 2 RELAY OUTPUT Output of AUX1 O terminal Displays ON when damper position reaches programmed EXH2 OUT ON/OFF percentage set point.
  • Page 48 Table 17 — W7220 Menu Structure (cont) PARAMETER PARAMETER EXPANDED PARAMETER NAME MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT EXHAUST FAN STAGE 1 SETPOINT Set point for OA damper position when exhaust fan 1 is powered 0 to 100%; by the economizer.
  • Page 49 Table 17 — W7220 Menu Structure (cont) PARAMETER PARAMETER EXPANDED PARAMETER NAME MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT NONE Used for alarm for when the DA air temperature is too high. Sets 70°F to 180°F DA HI ALM 80°F (27°C) upper range of alarm;...
  • Page 50 Table 17 — W7220 Menu Structure (cont) PARAMETER PARAMETER EXPANDED PARAMETER NAME MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT Check if outdoor temperature is below the LOW Temp Lockout on set point menu. Check if Mixed air temperature on STATUS FREEZE ALARM menu is below the Low Set point on Advanced menu.
  • Page 51 Table 18 — Damper Minimum Position Settings and Readings on Checkout Menu DEMAND CONTROLLED VENTILATION FAN SPEED SETPOINTS CHECKOUT SENSOR) MIN POS VMAX-HS MIN POS H VMAX-HS MIN POS L VMAX-LS VENT MIN VMAX-HS VENT MAX VMAX-HS VENT MIN H VMAX-HS VENT MAX H VMAX-LS...
  • Page 52 Table 21 — Enthalpy Operation without DCV (CO Sensor) — One-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 24-v/On...
  • Page 53 Table 24 — Dry Bulb Operation with DCV (CO Sensor) — Two-Speed Fan DEMAND OUTSIDE AIR CONTROLLED GOOD TO Y1-I Y2-I Y1-O Y2-O OCCUPIED UNOCCUPIED SPEED VENTILATION (DCV) ECONOMIZE 0-v/Off 0-v/Off VENTMIN Closed 24-v/On 0-v/Off VENTMIN Closed HIGH 24-v/On 24-v/On VENTMIN Closed 0-v/Off...
  • Page 54 Table 26 — Enthalpy Operation with DCV (CO Sensor) — Two-Speed Fan DEMAND OUTSIDE AIR CONTROLLED GOOD TO Y1-I Y2-I Y1-O Y2-O OCCUPIED UNOCCUPIED SPEED VENTILATION (DCV) ECONOMIZE 0-v/Off 0-v/Off VENTMIN Closed 24-v/On 0-v/Off VENTMIN Closed HIGH 24-v/On 24-v/On VENTMIN Closed 0-v/Off 0-v/Off...
  • Page 55 Economizing Dual Enthalpy Available High Limit Not Available Single Enthalpy P2 (T,RH) (T,RH) Temperature Fig. 73 — Single Enthalpy Curve Boundaries Table 27 — Single Enthalpy and Dual Enthalpy High Limit Curves POINT P1 POINT P2 ENTHALPY TEMP. DRY TEMP. ENTHALPY HUMIDITY HUMIDITY...

  • Page 56: Pre-Start-Up/Start-Up

    Status PRE-START-UP/START-UP Use the Status menu (see Table 17) to check the parameter val- ues for the various devices and sensors configured. WARNING NOTE: For information about menu navigation and use of the keypad, see Interface Overview on page 45. PERSONAL INJURY HAZARD Checkout Tests Failure to follow this warning could result in personal...

  • Page 57: Start-Up, General

    Verify the following conditions: Compressor Rotation a. Make sure that condenser-fan blade are correctly posi- tioned in fan orifice. See Condenser Fan Adjustment sec- CAUTION tion for more details. b. Make sure that air filter(s) is in place. EQUIPMENT DAMAGE HAZARD c.

  • Page 58: Heating

    Heating FASTENER TORQUE VALUES To start unit, turn on main power supply. Set system selector switch to the HEAT position and set thermostat at a setting Heat shield screws 30 in.-lb (3.4 Nm) ±2 in.-lb (0.2 Nm) above room temperature. Set fan to AUTO position. Stator motor mounting 23 in.-lb (2.6 Nm) ±2 in.-lb (0.2 Nm) First stage of thermostat energizes the first stage of the electric...

  • Page 59: Nomenclature

    APPENDIX A — MODEL NUMBER NOMENCLATURE Position: 9 10 11 12 13 14 15 16 17 Example: Packaging and Control Unit Type A = Standard Packaging, electromechanical 547 = Packaged Rooftop Heat Pump controls that require W7212 EconoMi$er IV B = LTL Packaging, electromechanical controls that require W7212 EconoMi$er IV Model C = Standard Packaging, electromechanical...

  • Page 60: Appendix B - Physical Data

    APPENDIX B — PHYSICAL DATA 547K Physical Data 547K UNIT 547K*04A 547K*05A 547K*051 547K*06A 547K*07N NOMINAL TONS BASE UNIT OPERATING WT (lb) REFRIGERATION SYSTEM No. Circuits/No. Compressors/Type 1 / 1/ Scroll 1 / 1/ Scroll 1 / 1 / Scroll 1 / 1 / Scroll 1 / 1 / 2-Stage Scroll Puron...
  • Page 61 APPENDIX B — PHYSICAL DATA (cont) 547K Physical Data (cont) 547K UNIT 547K*04A 547K*05A 547K*051 547K*06A 547K*07N CONDENSER FAN AND MOTOR (Outdoor) Qty / Motor Drive Type 1 / Direct 1 / Direct 1 / Direct 1 / Direct 1 / Direct Motor Hp/Rpm 1/4 / 1100 1/4 / 1100...

  • Page 62: Appendix C - Fan Performance

    APPENDIX C — FAN PERFORMANCE GENERAL FAN PERFORMANCE NOTES Interpolation is permissible. Do not extrapolate. For more information on the performance limits of Bryant motors, see the application data section of the product data External static pressure is the static pressure difference book for this model and size.
  • Page 63 APPENDIX C — FAN PERFORMANCE (cont) 547KJ04A Single Phase — 3 Ton Vertical Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1060 0.08 1325 0.16 1541 0.25 1718 0.35 1871 0.46 1103 0.09 1355 0.17 1572 0.27 1752 0.37 1906 0.48...
  • Page 64 APPENDIX C — FAN PERFORMANCE (cont) 547KJ04A Single Phase — Medium Static — 3 Ton Vertical Supply (rpm - vdc) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1060 1325 1541 1718 1871 1103 1355 1572 1752 1906 1050 1150 1387 1602 1784 1941 1125...
  • Page 65 APPENDIX C — FAN PERFORMANCE (cont) 547K(E/P/T)04A Three Phase — 3 Ton Vertical Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1060 0.08 1325 0.16 1541 0.25 1718 0.35 1871 0.46 1103 0.09 1355 0.17 1572 0.27 1752 0.37 1906 0.48...
  • Page 66 APPENDIX C — FAN PERFORMANCE (cont) 547K(E/P/T)04A Three Phase — Medium Static — 3 Ton Vertical Supply (rpm - vdc) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1060 1325 1541 1718 1871 1103 1355 1572 1752 1906 1050 1150 1387 1602 1784 1941 1125...
  • Page 67 APPENDIX C — FAN PERFORMANCE (cont) 547KJ051 Single Phase — 4 Ton Vertical Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1200 1095 0.14 1302 0.24 1484 0.35 1646 0.48 1794 0.63 1300 1151 0.16 1347 0.26 1523 0.38 1681 0.51...
  • Page 68 APPENDIX C — FAN PERFORMANCE (cont) 547KJ051 Single Phase — Medium Static — 4 Ton Vertical Supply (rpm - vdc) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1200 1094 1302 1484 1646 1794 1300 1150 1347 1523 1681 1826 1400 1209 1395 1565 1719...
  • Page 69 APPENDIX C — FAN PERFORMANCE (cont) 547K(E/P/T)05A Three Phase — 4 Ton Vertical Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1200 1094 0.14 1302 0.24 1484 0.35 1646 0.48 1794 0.63 1300 1150 0.16 1347 0.26 1524 0.38 1681 0.51...
  • Page 70 APPENDIX C — FAN PERFORMANCE (cont) 547K(E/P/T)05A Three Phase — Medium Static — 4 Ton Vertical Supply (rpm - vdc) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1200 1094 1302 1484 1646 1794 1300 1150 1347 1524 1681 1826 1400 1209 1395 1565 1719...
  • Page 71 APPENDIX C — FAN PERFORMANCE (cont) 547KJ06A Single Phase — 5 Ton Vertical Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1500 1228 0.20 1394 0.29 1554 0.40 1701 0.53 1836 0.66 1625 1305 0.24 1457 0.33 1609 0.44 1750 0.57...
  • Page 72 APPENDIX C — FAN PERFORMANCE (cont) 547KJ06A Single Phase — Medium Static — 5 Ton Vertical Supply (rpm - vdc) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1500 1228 1394 1554 1701 1836 1625 1305 1457 1609 1750 1882 1750 1384 1523 1666 1802...
  • Page 73 APPENDIX C — FAN PERFORMANCE (cont) 547K(E/P/T)06A Three Phase — 5 Ton Vertical Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1500 1228 0.20 1394 0.29 1554 0.40 1701 0.53 1836 0.66 1625 1305 0.24 1457 0.33 1609 0.44 1750 0.57...
  • Page 74 APPENDIX C — FAN PERFORMANCE (cont) 547K(E/P/T)06A Three Phase — Medium Static — 5 Ton Vertical Supply (rpm - vdc) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1500 1228 1394 1554 1701 1836 1625 1305 1457 1609 1750 1882 1750 1384 1523 1666 1802...
  • Page 75 APPENDIX C — FAN PERFORMANCE (cont) 547K(E/P/T)07N Three Phase — 6 Ton Vertical Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1800 1416 0.30 1549 0.39 1690 0.51 1824 0.64 1950 0.78 1950 1516 0.37 1635 0.46 1764 0.58 1891 0.71...
  • Page 76 APPENDIX C — FAN PERFORMANCE (cont) 547K(E/P/T)07N Three Phase — Medium Static — 6 Ton Vertical Supply (rpm - vdc) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1800 1416 1549 1690 1824 1950 1950 1516 1635 1764 1891 2012 2100 1616 1724 1841 1961...
  • Page 77 APPENDIX C — FAN PERFORMANCE (cont) 547KJ04A Single Phase — 3 Ton Horizontal Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1036 0.08 1301 0.15 1517 0.24 1698 0.34 1855 0.44 1077 0.09 1331 0.16 1546 0.26 1727 0.36 1885 0.47...
  • Page 78 APPENDIX C — FAN PERFORMANCE (cont) 547KJ04A Single Phase — Medium Static — 3 Ton Horizontal Supply (rpm - vdc) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1036 1301 1517 1698 1855 1077 1331 1546 1727 1885 1050 1119 1362 1574 1755 1915 1125...
  • Page 79 APPENDIX C — FAN PERFORMANCE (cont) 547K(E/P/T)04A Three Phase — 3 Ton Horizontal Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1036 0.08 1301 0.15 1517 0.24 1698 0.34 1855 0.44 1076 0.09 1330 0.16 1545 0.26 1727 0.36 1885 0.47...
  • Page 80 APPENDIX C — FAN PERFORMANCE (cont) 547K(E/P/T)04A Three Phase — Medium Static — 3 Ton Horizontal Supply (rpm - vdc) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1036 1301 1517 1698 1855 1076 1330 1545 1727 1885 1050 1119 1361 1573 1756 1915 1125...
  • Page 81 APPENDIX C — FAN PERFORMANCE (cont) 547KJ051 Single Phase — 4 Ton Horizontal Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1200 1066 0.13 1280 0.22 1473 0.34 1644 0.47 1798 0.61 1300 1120 0.15 1320 0.24 1506 0.36 1674 0.49...
  • Page 82 APPENDIX C — FAN PERFORMANCE (cont) 547KJ051 Single Phase — Medium Static — 4 Ton Horizontal Supply (rpm - vdc) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1200 1066 1280 1473 1644 1798 1300 1120 1320 1506 1674 1826 1400 1177 1363 1541 1705...
  • Page 83 APPENDIX C — FAN PERFORMANCE (cont) 547K(E/P/T)05A Three Phase — 4 Ton Horizontal Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1200 1067 0.13 1280 0.22 1473 0.34 1645 0.47 1798 0.61 1300 1121 0.15 1320 0.24 1506 0.36 1675 0.49...
  • Page 84 APPENDIX C — FAN PERFORMANCE (cont) 547K(E/P/T)05A Three Phase — Medium Static — 4 Ton Horizontal Supply (rpm - vdc) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1200 1067 1280 1473 1645 1798 1300 1121 1320 1506 1675 1827 1400 1177 1363 1542 1706...
  • Page 85 APPENDIX C — FAN PERFORMANCE (cont) 547KJ06A Single Phase — 5 Ton Horizontal Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1500 1197 0.18 1360 0.26 1525 0.37 1679 0.49 1822 0.62 1625 1271 0.21 1421 0.29 1574 0.40 1721 0.52...
  • Page 86 APPENDIX C — FAN PERFORMANCE (cont) 547KJ06A Single Phase — Medium Static — 5 Ton Horizontal Supply (rpm - vdc) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1500 1197 1360 1525 1679 1822 1625 1271 1421 1574 1721 1860 1750 1348 1485 1627 1767...
  • Page 87 APPENDIX C — FAN PERFORMANCE (cont) 547K(E/P/T)06A Three Phase — 5 Ton Horizontal Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1500 1196 0.18 1360 0.26 1525 0.37 1679 0.49 1822 0.62 1625 1271 0.21 1421 0.29 1574 0.40 1721 0.52...
  • Page 88 APPENDIX C — FAN PERFORMANCE (cont) 547K(E/P/T)06A Three Phase — Medium Static — 5 Ton Horizontal Supply (rpm - vdc) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1500 1196 1360 1525 1679 1822 1625 1271 1421 1574 1721 1860 1750 1348 1485 1627 1767...
  • Page 89 APPENDIX C — FAN PERFORMANCE (cont) 547K(E/P/T)07N Three Phase — 6 Ton Horizontal Supply (rpm - bhp) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1800 1378 0.27 1512 0.35 1649 0.46 1786 0.58 1918 0.72 1950 1473 0.32 1594 0.41 1721 0.52 1848 0.64...
  • Page 90 APPENDIX C — FAN PERFORMANCE (cont) 547K(E/P/T)07N Three Phase — Medium Static — 6 Ton Horizontal Supply (rpm - vdc) AVAILABLE EXTERNAL STATIC PRESSURE (in. wg) 1800 1378 1512 1649 1786 1918 1950 1473 1594 1721 1848 1973 2100 1569 1680 1796 1915...

  • Page 91: Appendix D - Wiring Diagrams

    APPENDIX D — WIRING DIAGRAMS Wiring Diagrams 547K*04-07 UNITS SIZE VOLTAGE CONTROL (OVERLAY) PAGE POWER PAGE 208/230-1-60 48TC003163 04-06 Electro-Mechanical 208/230-3-60 48TC003166 48TC003162 W7212 Controller 460/575-3-60 48TC003164 208/230-1-60 48TC003163 04-06 Electro-Mechanical 208/230-3-60 48TC003166 (48TC003217) 48TC003162 W7220 Controller 460/575-3-60 48TC003164 208/230-3-60 48TC003160 48TC003162 Electro-Mechanical...
  • Page 92 APPENDIX D — WIRING DIAGRAMS (cont) Fig. B — 547KP04-06 Electro-Mechanical Control Wiring Diagram — 208/230-3-60 (with W7212 Control)
  • Page 93 APPENDIX D — WIRING DIAGRAMS (cont) Fig. C — 547K*04-06 Electro-Mechanical Control Wiring Diagram — All Voltages (with W7220 Control)
  • Page 94 APPENDIX D — WIRING DIAGRAMS (cont) Fig. D — 547KP07 Electro-Mechanical Control Wiring Diagram — 208/230-3-60 (with W7220 Control)
  • Page 95 APPENDIX D — WIRING DIAGRAMS (cont) Fig. E — 547K(E/T)07 Electro-Mechanical Control Wiring Diagram — 460/575-3-60 (with W7220 Control)
  • Page 96 APPENDIX D — WIRING DIAGRAMS (cont) Fig. F — 547K*04-06 Units, All Voltages — with Optional Factory-Installed RTU Open Controller...
  • Page 97 APPENDIX D — WIRING DIAGRAMS (cont) Fig. G — 547KP07 208/230-3-60 Units — with Optional Factory-Installed RTU Open Controller...
  • Page 98 APPENDIX D — WIRING DIAGRAMS (cont) Fig. H — 547K(E/T)07 460/575-3-60 Units — with Optional Factory-Installed RTU Open Controller...
  • Page 99 APPENDIX D — WIRING DIAGRAMS (cont) Fig. I — 547KJ04-06 Power Wiring Diagram — 208/230-1-60...
  • Page 100 APPENDIX D — WIRING DIAGRAMS (cont) Fig. J — 547KP04-07 Power Wiring Diagram — 208/230-3-60...
  • Page 101 APPENDIX D — WIRING DIAGRAMS (cont) Fig. K — 547K(E/T)04-07 Power Wiring Diagram — 460/575-3-60...

  • Page 102: Appendix E - Low Ambient Control

    APPENDIX E — LOW AMBIENT CONTROL SENSOR LOCATION Sensor Location Sensor Location Fig. L — 547K*04 Outdoor Circuiting Fig. M — 547K*05 Outdoor Circuiting...
  • Page 103 APPENDIX E — LOW AMBIENT CONTROL SENSOR LOCATION (cont) Sensor Location Sensor Location Fig. N — 547K*06 Outdoor Circuiting Fig. O — 547K*07 Outdoor Circuiting...
  • Page 106 Printed in U.S.A. Form No. SM547K-4-7-02 © 2023 Carrier Cat. No. 04-53547015-01 Edition Date: 7-23 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. Replaces: SM547K-4-7-01...

  • Page 107: Start-Up Checklist

    START-UP CHECKLIST FOR 547K*04-07 SINGLE PACKAGE ROOFTOP HEAT PUMP UNITS (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 document.
  • Page 108 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) _____ Printed in U.S.A.

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