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General| Brand | Carrier |
|---|---|
| Model | 50DD012 |
| Category | Accessories |
| Language | English |
Guidance on safely lifting, moving, and positioning the unit, including weight and rigging details.
Details on installing roof curbs or concrete slabs to ensure proper unit drainage and stability.
Instructions for connecting supply and return ductwork, including field-fabricated and concentric types.
Notes on duct connections for specific unit models, including economizer and manual damper types.
Procedure for converting units to allow for thru-the-side duct connections.
Procedure for starting the unit in cooling mode, including compressor and fan operation checks.
Procedure for starting the unit in heating mode for electric heat units.
Instructions on how to safely shut down the unit and its circuit breakers.
Details on head pressure control, capacity control unloaders, and heating stage operation.
Guidance on cleaning coils, drains, filters, and inlet screens for optimal performance.
Procedures for adjusting indoor and outdoor fan speeds, pulley alignment, and belt tension.
Information on compressor oil levels, fan shaft, and motor bearing maintenance.
Steps for setting the economizer dampers for optimal fresh air intake.
Detailed steps for charging refrigerant for various unit models, including low charge and no charge scenarios.
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