Carrier 48/50HJ004-014 Rooftop Unit RTU and Energy Recovery AQ START-UP Checklist, Iii. Start-Up

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ROOFTOP UNIT (RTU) AND ENERGY RECOVERY SECTION (62AQ) START-UP CHECKLIST

(Remove and Store in Job File)

I. PRELIMINARY INFORMATION

 

 

 

 

RTU

62AQ

COBRA™ ENERGY RECOVERY UNIT MODEL NO.:

 

 

SERIAL NO.:

 

/

BASE UNIT MODEL NO.:

 

 

 

SERIAL NO.:

 

/

DATE:

 

 

 

 

TECHNICIAN:

 

/

II. PRE-START-UP (insert checkmark in box as each item is completed)

VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTALLATION INSTRUCTIONS

CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS

CHECK THAT SUPPLY AND EXHAUST HOODS ARE INSTALLED AND AIR FILTER(S) ARE CLEAN AND IN PLACE

￿CHECK FAN WHEEL AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE AND SETSCREW TIGHTNESS

CHECK PULLEY ALIGNMENT AND BELT TENSION PER INSTALLATION INSTRUCTIONS (62AQ300 BELT DRIVE EXHAUST FAN AND SUPPLY FAN)

III.START-UP

COMBINED ELECTRICAL (COBRA ENERGY RECOVERY UNIT)

SUPPLY VOLTAGE

L1-L2

 

L2-L3

 

L3-L1

COMPRESSOR AMPS

L1

 

L2

 

L3

INDOOR FAN AMPS

L1

 

L2

 

L3

TEMPERATURES

 

 

 

 

OUTDOOR-AIR TEMPERATURE

 

DB

 

WB

RETURN-AIR TEMPERATURE

 

DB

 

WB

ENTERING SUPPLY-AIR (RTU)

 

DB

 

WB

LEAVING AIR TEMPERATURE (RTU)

 

DB

 

WB

PRESSURES (IN COOLING MODE)

 

 

 

 

ROOFTOP￿

UNIT

 

 

 

 

REFRIGERANT SUCTION

 

PSIG

TEMP AT COMPRESSOR

 

F

REFRIGERANT DISCHARGE

 

PSIG

TEMP AT COMPRESSOR

 

F

VERIFY REFRIGERANT CHARGE USING CHARGING CHART LABEL ON UNIT.

 

62AQ￿

 

 

 

 

 

 

REFRIGERANT SUCTION

 

PSIG

TEMP AT COMPRESSOR

 

F

REFRIGERANT DISCHARGE

 

PSIG

TEMP AT COMPRESSOR

 

F

VERIFY REFRIGERANT CHARGE USING CHARGING CHART LABEL ON UNIT.

CL-1

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Contents Safety Considerations ContentsGeneral Duct Opening Sizes InstallationSide View END View Side View Roof Curb Unit Size Accessory CRRFCURB001A00 Connector ALT GAS Power Control PKG. Accy Drain HoleCRRFCURB002A00 CRBTMPWR004A00 Roof Curb Unit Size AccessoryCRBTMPWR002A00 CRBTMPWR003A00Part Number Unit Size Equipment SupportRear Right Left Side Front Right Side Page Page Page Make Electrical Connections MAX Weight48HJ008 w/62AQ200 Hacr Power Supply Disconnect Size UnitNominal IFM Conv Type Outlet FLA MCA Fuse or LRA Hacr BKRType HeaterSingle Disconnect Size Point BOX30.8 025 Cont Nominal IFM Conv Power Supply Disconnect Size Unit Fuse orType Outlet FLA MCA LRA Hacr BKR 40.7 47.7 119 FLA LRA Hacr BKR Type Outlet FLA60.1 Crheater Fuse or Point BOX 68.0 420 68.0 82.8 519/519 017 21.7 25.0 Power Wiring Connections Low Voltage Connections Units with PremierLink Controls Set the Outdoor Cooling and Heat- ing Thermostats Height Width Depth Light Commercial Thermidistat AccessoryInstall Light Commercial Thermidistat Light Commercial Thermidistat Keypad To Test FAN Operational Information PRE-START-UP ServiceSTART-UP Unit Operation Flow Diagram Heating CoolingTroubleshooting Typical Wiring Schematic Standard Controls Typical Wiring Schematic with PremierLink Controls Problem Cause Remedy Heating and Cooling TroubleshootingCopyright 2002 Carrier Corporation Preliminary Information RTU Rooftop Unit RTU and Energy Recovery AQ START-UP ChecklistIII. START-UP III. START-UP IV. Light Commercial Thermidistat Accessory