Carrier 38QB User Manual

Overview of the heat pump's features, applications, and general use.

Procedure to verify unit and site readiness before commencing installation.

Instructions for correctly installing the unit on a ground pad or roof structure.

Detailed guidance on connecting refrigerant lines using compatible and sweat fittings.

Covers branch circuit disconnect installation and control power wiring.

Steps for setting thermostats, accessory controls, and initiating operation.

Detailed procedure for charging the system with the correct amount of refrigerant.

Technical specifications for compressors, including oil type and quantity.

Instructions for installing the filter drier in the liquid refrigerant line.

Explanation of the function of safety devices and control components.

Steps for fixing leaks at compatible fitting connections.

Guide on how to safely remove the outdoor fan motor assembly.

Recommendations for lubricating fan motor bearings based on operating conditions.

Detailed instructions for cleaning the heat pump coils to ensure optimal performance.