Bryant Legacy 547K 14 Installation Instructions Manual Download Page 40

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Fig. 55 — Piping Schematic — 547K*14 Heating Mode

Pre-Start and Start-Up

This completes the mechanical installation of the unit. Refer to

the unit’s Service Manual for detailed Pre-Start and Start-Up

instructions. Download the latest versions from HVAC

Partners (www.hvacpartners.com).

LPS/LOC

HPS

Indoor Coil

Outdoor Coil

Filter Drier

Heating TXV

Cooling TXV

Reversing

Valve

Cooling TXV

DFT

Summary of Contents for Legacy 547K 14

Page 1: ...UT FUSES LOW VOLTAGE CONTROL CONNECTIONS CONTROL AND POWER WIRING DIAGRAMS EconoMi er X Factory Installed Option 24 PRODUCT DESCRIPTION SYSTEM COMPONENTS SPECIFICATIONS INPUTS OUTPUTS ENVIRONMENTAL EC...

Page 2: ...nt DANGER ELECTRICAL SHOCK HAZARD Failure to follow this warning will result in personal injury or death Before performing service or maintenance operations on unit turn off main power switch to unit...

Page 3: ...Coil Options Round Tube Plate Fin Condenser Evaporator Hail Guard A Al Cu Al Cu B Precoat Al Cu Al Cu C E coat Al Cu Al Cu D E coat Al Cu E coat Al Cu E Cu Cu Al Cu F Cu Cu Cu Cu M Al Cu Al Cu Louver...

Page 4: ...4 Fig 2 547K 14 Unit Dimensional Drawing...

Page 5: ...5 Fig 2 547K 14 Unit Dimensional Drawing cont...

Page 6: ...ounting system that provides adequate height to allow for removal and disposal of frost and ice that will form during the heating defrost mode as well as allow installation of condensate trap per requ...

Page 7: ...ter flashing as shown Ductwork must be attached to curb and not to the unit SLAB MOUNT HORIZONTAL UNITS ONLY Provide a level concrete slab that extends a minimum of 6 in 150 mm beyond unit cabinet Ins...

Page 8: ...8 Fig 5 547K 14 Roof Curb Details...

Page 9: ...ssary Fig 7 Retrofit Installation Dimensions If the alternative condensate drain location through the bottom of the unit is used in conjunction with a retrofit curb the hole in the curb must be moved...

Page 10: ...filter access opening and assemble per the steps out lined in Economizer and Two Position Hood Setup on page 10 Fig 9 Typical Access Panel Locations Fig 10 Economizer Hood Package Location ECONOMIZER...

Page 11: ...t 25 mm in 3 m of run Do not use a pipe size smaller than the unit connection 3 4 in Step 10 Make Electrical Connections NOTE Check all factory and field electrical connections for tight ness Field su...

Page 12: ...how the wire routings If the field disconnect is larger than 100 A it must be attached to the unit using accessory CRDISBKT001A00 disconnect switch bracket see Fig 19 Follow the instructions provided...

Page 13: ...ithin 2 and the current within 10 Use the following formula to de termine the percent of voltage imbalance Example Supply voltage is 230 3 60 Determine maximum deviation from average voltage AB 227 22...

Page 14: ...hex screws on the NFD enclosure 12 Re install the unit front panel Fig 23 Location of Non Fused Disconnect Enclosure Fig 24 Handle and Shaft Assembly for NFD UNITS WITHOUT FACTORY INSTALLED NON FUSED...

Page 15: ...x and mounted on a bracket behind the convenience outlet access is through the unit s control box access panel See Fig 25 The primary leads to the convenience outlet transformer are not factory connec...

Page 16: ...ghtness of connector lock nuts before connecting elec trical conduits Field supplied and field installed liquid tight conduit connectors and conduit may be attached to the connectors on the basepan Pu...

Page 17: ...33 Defrost Control Board Arrangement Reversing Valve Control The DFB has 2 outputs for unit reversing valve control Opera tion of the reversing valves is based on internal logic this application does...

Page 18: ...s SW1 and SW2 see Fig 35 and Table 4 The de fault run period is 60 minutes Fig 35 DIP Switch Settings Defrost Board Table 3 547K Defrost Board I O and Jumper Configurations POINT NAME TYPE OF I O CONN...

Page 19: ...rough ceramic insulators line break limit switches and a control contactor Heater modules are installed in the compartment below the in door supply fan outlet Access is through the electric heat acces...

Page 20: ...60 A fuse regardless of actual heater ampacity so only 60 A fuses are necessary SINGLE POINT BOXES WITHOUT FUSES Unit heater applications not requiring supplemental fuses re quire a special single po...

Page 21: ...21 Fig 41 Typical Control Wiring Diagram Electromechanical with W7220 Controller...

Page 22: ...22 Fig 42 Typical Power Wiring Diagram 208 230 460 3 60 Unit Shown...

Page 23: ...23 Fig 43 Typical Power Wiring Diagram 575 3 60 Unit Shown...

Page 24: ...le includes terminals for CO2 sensor Mixed Air sensor and an Outdoor Dry Bulb sensor En thalpy and other options are available with bus sensors User Interface Provides status for normal operation setu...

Page 25: ...24 Part 6 Table 5 Economizer Module Left Hand Terminal Blocks LABEL TYPE DESCRIPTION Top Left Terminal Block MAT MAT 20k NTC and COM Mixed Air Temperature Sensor Polarity Insensitive Connection OAT OA...

Page 26: ...g 48 are used to scroll through the menus and menu items select menu items and to change parameter and configuration settings To use the keypad when working with menus Press the Up arrow button to mov...

Page 27: ...rs MA or MAT indicating a mixed air temperature sensor location before the cooling coil This unit application has the control sensor locat ed after the cooling coil in the fan section where it is desi...

Page 28: ...ture Displays _ _ _F if sensor sends invalid value if not connected short or out of range OA TEMP _ _ _ F 40 F to 140 F 40 C to 60 C OUTSIDE AIR TEMP Displays measured value of outdoor air temperature...

Page 29: ...TILATION MINIMUM POSITION AT LOW SPEED Only displays if unit is set for 2 or 3 speed and CO2 is not used If using 2 speed with 1 heat and 1 cool then set for HEATING ventilation If using 3 speed with...

Page 30: ...e NOTE If using 2 speed fan mode you must program CONV mode for W Shutdown is not available in 2 speed fan mode g In HP O B mode HP O energize heat pump on Cool default HP B energize heat pump on heat...

Page 31: ...just for an out of calibration temperature sensor 2SP FAN DELAY 5 Minutes 0 to 20 minutes in 1 minute increments TIME DELAY ON SECOND STAGE ECONOMIZING When in economizing mode this is the delay for t...

Page 32: ...TUATOR STALLED Actuator stopped before achieving commanded position NOTE S a Table 9 illustrates the complete hierarchy Your menu parameters may be different depending on your configuration For exampl...

Page 33: ...Economizer Operation FAN TYPE 2SPEED INPUTS OUTPUTS DEMAND CONTROLLED VENTILATION DCV OUTSIDE AIR GOOD TO ECONOMIZE W HEAT ON COOL Y1 IN COOL Y2 IN COOL Y1 OUT COOL Y2 OUT FAN SPEED reference only DAM...

Page 34: ...en all of the OA conditions are above the selected bound ary the conditions are not good to economize and the mode is set to NO Figure 49 shows the 5 current boundaries There is also a high limit boun...

Page 35: ...e to the Alarms menu at any time Clearing Alarms Once the alarm has been identified and the cause has been re moved e g replaced faulty sensor the alarm can be cleared from the display To clear an ala...

Page 36: ...l and Medium Rooftop Units 2 to 25 Tons for discussions on additional control features of these smoke detectors including multiple unit coordination Fig 50 Return Air Smoke Detector Shipping Position...

Page 37: ...ries Step 13 Fan Speed Set Up NOTE The Indoor Fan motor is equipped with an internal protec tion relay that is designed to disable unit operation if it detects a problem See Typical Wiring Diagram Fig...

Page 38: ...4 6 1 6 4 6 8 7 2 7 6 8 0 8 4 8 8 9 2 0 4 0 6 6 5 6 8 7 2 7 5 7 9 8 3 8 7 9 1 0 4 0 8 6 9 7 2 7 6 7 9 8 2 8 6 9 0 0 4 1 0 7 3 7 6 7 9 8 2 8 6 0 4 1 2 7 6 7 9 8 2 8 6 0 4 1 4 8 0 8 3 8 6 0 4 1 6 1 8 2...

Page 39: ...ing Valve Energized Check Valve A Closed Check Valve B Open Check Valve C Open Check Valve D Open Check Valve E Open Check Valve F Closed Check Valve G Closed Table 14 547K 14 Heating Mode COMPONENT S...

Page 40: ...l installation of the unit Refer to the unit s Service Manual for detailed Pre Start and Start Up instructions Download the latest versions from HVAC Partners www hvacpartners com LPS LOC HPS Indoor C...

Page 41: ......

Page 42: ...reserves the right to change at any time specifications and designs without notice and without obligations Replaces New 2022 Carrier Cat No 04 53547013 01 Edition Date 6 22 Printed in U S A Form No I...

Page 43: ...N _____ Check that indoor air filters are clean and in place Y N _____ Check that outdoor air inlet screens are in place Y N _____ Verify that unit is level Y N _____ Verify that fan assembly is free...

Page 44: ...r Cat No 04 53547013 01 Edition Date 6 22 Printed in U S A Form No II547K 14 01 PRESSURES Refrigerant Suction ____________ PSIG Refrigerant Discharge ____________ PSIG Verify Refrigerant Charge using...

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