Carrier 50CR Rig and Place Unit, Inspection, Unit Falling Hazard, Property Damage Hazard

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Step 4—Rig and Place Unit

Rigging and handling of this equipment can be hazardous for many reasons due to the installation location (roofs, elevated structures, etc.).

Only trained, qualified crane operators and ground support staff should handle and install this equipment.

When working with this equipment, observe precautions in the literature, on tags, stickers, and labels attached to the equipment, and any other safety precautions that might apply.

Training for operators of the lifting equipment should include, but not be limited to, the following:

1.Application of the lifter to the load, and adjustment of the lifts to adapt to various sizes or kinds of loads.

2.Instruction in any special operation or precaution.

3.Condition of the load as it relates to operation of the lifting kit, such as balance, temperature, etc.

Follow all applicable safety codes. Wear safety shoes and work gloves.

INSPECTION

Prior to initial use, and at monthly intervals, all rigging brackets and straps should be visually inspected for any damage, evidence of wear, structural deformation, or cracks. Particular attention should be paid to excessive wear at hoist hooking points and load support areas. Brackets or straps showing any kind of wear in these areas must not be used and should be discarded.

!WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury or death.

Before installing or servicing system, always turn off main power to system. There may be more than one disconnect switch. Turn off accessory heater power switch if applicable. Tag disconnect switch with a suitable warning label.

!WARNING

UNIT FALLING HAZARD

Failure to follow this warning could result in personal injury or death.

Never stand beneath rigged units or lift over people.

INTRODUCTION

The lifting/rigging bracket is engineered and designed to be installed only on Small Packaged Products. This bracket is to be used to rig/lift a Small Packaged Product onto roofs or other elevated structures.

!WARNING

PROPERTY DAMAGE HAZARD

Failure to follow this warning could result in personal injury/death or property damage.

Rigging brackets for one unit use only. When removing a unit at the end of its useful life, use a new set of brackets.

USE OF RIGGING BRACKET

Field Installation of Rigging Bracket

1.If applicable, remove unit from shipping carton. Leave top shipping skid on the unit for use as a spreader bar to prevent the rigging straps from damaging the unit. If the skid is not available, use a spreader bar of sufficient length to protect the unit from damage.

2.Remove 4 screws in unit corner posts.

3.Attach each of the 4 metal rigging brackets under the panel rain lip (See Fig. 8). Use the screws removed in step 2 above to secure the brackets to the unit.

!WARNING

PROPERTY DAMAGE HAZARD

Failure to follow this warning could result in personal injury/death or property damage.

Rigging bracket MUST be under the rain lip to provide adequate lifting.

!WARNING

PROPERTY DAMAGE HAZARD

Failure to follow this warning could result in personal injury/death or property damage.

Do not strip screws when re-securing the unit. If a screw is stripped, replace the stripped one with a larger diameter screw (included).

Rigging/Lifting of Unit

1.Bend top of brackets down approximately 30 degrees from the corner posts.

2.Attach straps of equal length to the rigging brackets at opposite ends of the unit. Be sure straps are rated to hold the weight of the unit (See Fig. 9).

3.Attach a clevis of sufficient strength in the middle of the straps. Adjust the clevis location to ensure unit is lifted level with the ground.

4.After unit is securely in place detach rigging straps. Remove corner posts, screws, and rigging brackets then reinstall screws.

!WARNING

UNIT FALLING HAZARD

Failure to follow this warning could result in personal injury/death or property damage.

When straps are taut, the clevis should be a minimum of 36 inches above the unit top cover.

After the unit is placed on the roof curb or mounting pad, remove the top crating. On 50CR060 units only, 2 wire ties fastened to the outdoor coils and reversing valve/accumulator assembly must be cut. Remove the left and front louvered panels and corner post to access wire ties. The wire tie to be cut on the left is located approximately 4 in. down the tube sheet. The wire tie to be cut on the right is located approximately 6 in. down the tube sheet.

50CR

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Contents Table of Contents Installation InstructionsIntroduction Safety ConsiderationsElectrical Shock Hazard Equipment Damage HazardRoof Curb for Small Cabinet Roof Curb for Large Cabinet Unit Leveling Tolerances 50CR024-036 Unit Dimensions 50CR042-060 Unit Dimensions Property Damage Hazard Rig and Place UnitInspection Unit Falling HazardRigging Bracket Under Unit Rain Lip Electrical Operation Hazard Select and Install DuctworkProvide for Condensate Disposal Physical Data Unit 50CR Typical InstallationHIGH-VOLTAGE Connections Routing Power Leads Into UnitConnecting Ground Lead to Ground Screw Routing Control Power WiresElectrical Data-50CR Electrical Data Legend Wiring Schematics-50CR Single Phase Wiring Schematics-50CR Three Phase Line Power Connections Accessory InstallationSTART-UP PRE-START-UP FIRE, EXPLOSION, Electrical Shock HazardUnit Start-Up Verify Motor Winding Section Status Code 45, Control Board Test FaultStatus Code 37, Heater Output Sensed on When not Energized Status Code 44, Motor Communication FaultStatus Code 25, Invalid Motor / Model Selection Status Code 36, Heater Output not Sensed When EnergizedStatus Code 41, Blower Motor Fault Status Code 16, System Communication FaultSequence of Operation Start-Up AdjustmentsCheck for Refrigerant Leaks Typical Heat Pump Operation, Cooling Mode Defrost Control Electric Heat Pressure Drop Table Small Cabinet Personal Injury and Unit Damage Hazard MaintenanceUnit Operation Hazard Outdoor Fan Air FilterIndoor Blower and Motor Outdoor Coil, Indoor Coil, and Condensate Drain PanIndoor Airflow Pressure SwitchesMetering Devices-TXV & Accurater Piston EXPLOSION, FIRE, Electrical Shock Hazard High-Pressure SwitchPersonal INJURY, Unit Operation Hazard System Information LOSS-OF-CHARGE SwitchTroubleshooting START-UP ChecklistObserve all warnings, cautions, and bold text Troubleshooting Chart Head pressure too low Troubleshooting Chart Cont’dSTART-UP Checklist