Bryant Legacy 549J 12 Series Скачать руководство пользователя страница 44

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Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

CL-2

Replaces: II549J-12-02

Cat. No. 04-53549013-01

Edition Date: 6-2020

Printed in U.S.A.

Form No: II549J-12-03

HEATING CYCLE

ELECTRICAL

Supply Voltage

L1-L2_____________

L2-L3_____________

L3-L1_____________

Compressor Amps 1

L1 _____________

L2 _____________

L3 _____________

Compressor Amps 2

L1 _____________

L2 _____________

L3 _____________

Supply Fan Amps

L1 _____________

L2 _____________

L3 _____________

TEMPERATURES

Outdoor-air Temperature

_____________ °F DB (Dry Bulb)

Return-air Temperature

_____________ °F DB

_____________

F Wb (Wet Bulb)

Cooling Supply Air Temperature

_____________ °F

PRESSURES

Refrigerant Suction

CIRCUIT A _____________ PSIG

CIRCUIT B _____________ PSIG

Refrigerant Discharge

CIRCUIT A _____________ PSIG

CIRCUIT B _____________ 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) _____

REPEAT PROCESS FOR 2 COMPRESSOR SYSTEMS

Содержание Legacy 549J 12 Series

Страница 1: ...NG DIAGRAMS EconoMi er X Factory Option 27 SYSTEM COMPONENTS SPECIFICATIONS INPUTS OUTPUTS ENVIRONMENTAL ECONOMIZER MODULE WIRING DETAILS S BUS SENSOR WIRING CO2 SENSOR WIRING INTERFACE OVERVIEW SETUP...

Страница 2: ...wer switch to unit and install lock s and lockout tag s Ensure electrical service to rooftop unit agrees with voltage and amperage listed on the unit rating plate Unit may have more than one power swi...

Страница 3: ...Indoor 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 Louvered Hail Guard N Precoat Al Cu Al Cu Louvered Hail...

Страница 4: ...4 Fig 2 Unit Dimensional Drawing Size 12 Units...

Страница 5: ...5 Fig 2 Unit Dimensional Drawing Size 12 Units cont...

Страница 6: ...ITION A 48 in 1219 mm 18 in 457 mm 18 in 457 mm 12 in 305 mm Unit disconnect is mounted on panel No disconnect convenience outlet option Recommended service clearance Minimum clearance B 42 in 1067 mm...

Страница 7: ...om O ring Install the fitting body and torque to 96 10 in lb 10 9 1 Nm Do not exceed 106 in lb 11 9 Nm when tightening INSTALLATION Jobsite Survey Complete the following checks before installation 1 C...

Страница 8: ...ME MOUNTED INSTALLATION Frame mounted applications generally follow the sequence for a curb installation Adapt the sequence as required to suit spe cific installation plan Step 3 Inspect Unit Inspect...

Страница 9: ...9 Fig 6 Roof Curb Details REV 50TM500827...

Страница 10: ...al information Lifting holes are provided in base rails as shown in Fig 8 Re fer to rigging instructions on unit Before setting the unit onto the curb recheck gasketing on curb Rigging materials under...

Страница 11: ...iguration using accessory CRDUCTCV001A00 To convert to horizontal configuration remove screws from side duct opening covers see Fig 10 and remove covers Discard the supply duct cov er Install accessor...

Страница 12: ...to the basepan and remove In order to remove the screws it may be nec essary to remove the panel underneath the two position damper Locate and cut the 2 plastic tie wraps securing the assembly to the...

Страница 13: ...rflow configuration does not deter mine which drain connection to use Either drain connection can be used with vertical or horizontal applications When using the standard side drain connection ensure...

Страница 14: ...disconnects be sure to use 1 2 in screws to mount the disconnect directly to the end panel following the instruc tions on the Field Disconnect Warning label see Fig 25 In either case set the disconnec...

Страница 15: ...2 0 AWG copper only per pole Provide a ground fault and short circuit over current protection device fuse or breaker per NEC Article 440 or local codes Refer to unit informative data plate for MOCP Ma...

Страница 16: ...he pointer to be 3 75 to 3 88 in 95 to 99 mm for 80A and 100A NFD and 3 43 to 3 56 in 87 to 90 mm for 200A NFD 7 Tighten the locking screw to secure the shaft to the NFD 8 Turn the handle to the OFF p...

Страница 17: ...t side of the disconnect Be sure to create a drip loop at least 6 in long Fig 31 Powered Convenience Outlet Wiring Duty Cycle The unit powered convenience outlet has a duty cycle limita tion The trans...

Страница 18: ...duit between disconnect and control box 2 Install power lines to terminal connections as shown in Fig 26 FIELD CONTROL WIRING The 549J unit requires an external temperature control device This device...

Страница 19: ...ycle de mand is received Once de energized at the start of a Heating cy cle the reversing valves will remain de energized until the next cooling stage is initiated Compressor control The DFB receives...

Страница 20: ...see Fig 37 and Table 7 The de fault run period is 60 minutes for size 12 units Table 6 549J Defrost Board I O and Jumper Configurations POINT NAME TYPE OF I O CONNECTION PIN NUMBER UNIT CONNECTION NOT...

Страница 21: ...tie to ensure that the thermostat wire is tight and will not be damaged by contact with the condenser coil See Fig 38 NOTE If thru the bottom connections accessory is used refer to the accessory insta...

Страница 22: ...t Use the wiring procedure listed below for each heater as determined by the number of stages in the heater Single Stage Heaters Single stage heaters will have an orange and a brown control wire Conne...

Страница 23: ...ory Electric Heater Control Connections NOTE Optional Outdoor Temperature Control at One Heater Stage Move either heater wire to this terminal and connect outdoor temperature switch between second and...

Страница 24: ...24 Fig 42 Typical 549J Control Wiring Diagram...

Страница 25: ...25 Fig 43 Typical 549J Power Wiring Diagram 208 230 3 60 unit shown...

Страница 26: ...26 Fig 44 RTU Open Controller System Wiring Diagram...

Страница 27: ...are available with bus sensors User Interface The interface provides status for normal operation setup pa rameters checkout tests and alarm and error conditions with a 2 line 16 character LCD display...

Страница 28: ...ft Terminal Block IAQ 2 10 2 10 VDC Air Quality Sensor Input e g CO2 sensor IAQ COM COM Air Quality Sensor Common IAQ 24V 24 VAC Air Quality Sensor 24 VAC Source ACT 2 10 2 10 VDC Damper Actuator Outp...

Страница 29: ...the list of menus Fig 49 W7220 Controller Navigation Buttons To use the keypad when working with Setpoints System and Advanced Settings Checkout tests and Alarms 1 Navigate to the desired menu 2 Press...

Страница 30: ...L HEAT HEAT PUMP MODE Displays COOL or HEAT when system is set to heat pump Non conventional COOL Y1 IN OFF ON OFF FIRST STAGE COOLING DEMAND Y1 IN Y1 I signal from space thermostat or unitary control...

Страница 31: ...F 43 C to 27 C increment by 1 F COMPRESSOR LOW TEMPERATURE LOCKOUT Set point determines outdoor temperature when the mechanical cooling cannot be turned on Commonly referred to as the Compressor locko...

Страница 32: ...e capacity of the RTU The value is found on the nameplate label for the specific unit AUX1 OUT NONE NONE ERV EXH2 SYS Select OUTPUT for AUX1 O relay NONE not configured output is not used ERV Energy R...

Страница 33: ...n damper to the full open position Exhaust fan contacts enable during the DAMPER OPEN test Make sure to pause in the mode to allow exhaust contacts to energize due to the delay in the system DAMPER CL...

Страница 34: ...ce actuator if damper is movable and supply voltage is between 21 6 V and 26 4 V Check actuator count on STATUS menu FREEZE ALARM N A N A Check if outdoor temperature is below the LOW Temp Lockout on...

Страница 35: ...2 Sensor 1 Speed Fan DCV OUTSIDE AIR GOOD TO ECONOMIZE Y1 I Y2 I FAN SPEED Y1 O Y2 O OCCUPIED UNOCCUPIED Below CO2 Set No Off Off High 0 v Off 0 v Off VENTMIN Closed On Off High 24 v On 0 v Off VENTMI...

Страница 36: ...On Off High 0 v Off 0 v Off VENTMIN to Full Open Closed to Full Open On On High 24 v On 0 v Off VENTMIN to Full Open Closed to Full Open Above Set No Off Off High 0 v Off 0 v Off VENTMIN to VENTMAX C...

Страница 37: ...ll Open Closed to Full Open On On High DELAY 24 v On 0 v Off MIN POS H to Full Open Closed to Full Open Table 21 Enthalpy Operation with Demand Controlled Ventilation DCV CO2 Sensor 2 Speed Fan DCV OU...

Страница 38: ...ation wiring dia grams For checkout review the Status of each configured pa rameter and perform the Checkout tests For information about menu navigation and use of the keypad see Interface Overview on...

Страница 39: ...n air smoke detectors are ar ranged for vertical return configurations only All components necessary for operation are factory provided and mounted The unit is factory configured for immediate smoke d...

Страница 40: ...ols Connec tions Board at terminals marked Smoke Shutdown Cut jumper JMP 3 when ready to energize unit ECONOMI ER IV OCCUPANCY SWITCH See Fig 53 for general EconoMi er IV wiring External occu pancy co...

Страница 41: ...the fan to increase ten sion Ensure the blower shaft and motor shaft are parallel to each other pulleys aligned Tighten all bolts securely when finished BELT TENSION METHOD Requires belt tension gage...

Страница 42: ...rves the right to change at any time specifications and designs without notice and without obligations Replaces II549J 12 02 2020 Carrier Cat No 04 53549013 01 Edition Date 6 2020 Printed in U S A For...

Страница 43: ...N _____ Verify that unit is level Y N _____ Check fan wheels and propeller for location in housing orifice and verify setscrew is tight Y N _____ Verify that fan sheaves are aligned and belts are prop...

Страница 44: ..._ L3 _____________ Supply Fan Amps L1 _____________ L2 _____________ L3 _____________ TEMPERATURES Outdoor air Temperature _____________ F DB Dry Bulb Return air Temperature _____________ F DB _______...

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