EasyManua.ls Logo

Carrier 50QQ User Manual

Carrier 50QQ
16 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
Question and Answer IconNeed help?

Do you have a question about the Carrier 50QQ and is the answer not in the manual?

Carrier 50QQ Specifications

General IconGeneral
BrandCarrier
Model50QQ
CategoryHeat Pump
LanguageEnglish

Summary

Safety Considerations

Installation Guide

Check Equipment and Jobsite

Inspect unit, unpack, and verify system requirements before installation.

Mount Unit

Procedures for mounting the heat pump on the ground or roof.

Make Ductwork Connections

Connect supply and return air ductwork to the unit.

Cooling Cycle Condensate Disposal

Connect drain line for condensate and ensure proper disposal.

Make Electrical Connections

Install branch circuit disconnect, route power leads, and connect wiring.

Unit Start-Up Procedures

Heat Anticipator Settings

Set anticipator settings for room thermostat according to installation instructions.

Accessory Outdoor Thermostat

Provides adjustable outdoor control of accessory electric heaters.

Mount Outdoor Thermostat

Locate and fasten outdoor thermostats in the controls section.

Mount Supplemental Heat Relay

Mount the supplemental heat relay in the low-voltage section.

Unit Start Procedure

Step-by-step guide to starting the unit after installation.

Compressor Start Thermistor Check

Procedure to check the start thermistor for compressor operation issues.

Service: Controls and Defrost

Unit Controls and Safety Devices

Explanation of high-pressure relief valve, overload, and defrost control.

Defrost Control Operation

Details on defrost timer, thermostat, and defrost cycle.

Service: Refrigerant Charging

Cooling Mode Superheat Charging

Superheat charging method using labels and charts.

Service: Metering Device and Compressor

Metering Device Servicing

Procedures for cleaning or replacing metering device components.

Compressor Removal

Steps for removing the compressor, including safety precautions.

Service: Unit Components

Filter Drier Installation

Install an accessory liquid line filter drier assembly.

Compressor Lubrication

Information on compressor oil charge and type.

Maintenance Procedures

Fan Motor Bearing Lubrication

Lubrication intervals and procedures for fan motor bearings.

Indoor Coil Maintenance

Inspect and clean the indoor coil.

Condensate Drain Cleaning

Clean the condensate drain trap and flush the pan.

Indoor Fan Assembly Maintenance

Adjust, clean, and reassemble the indoor fan assembly.

Outdoor Air Fan Maintenance

Adjust, remove, and reconnect outdoor air fan and motor.

Operational Procedures

Return Air Filter Maintenance

Replace disposable filters and clean permanent filters regularly.

Outdoor Coil Cleaning

Inspect and clean the outdoor coil regularly to prevent issues.

Cooling Operation Sequence

Detailed steps of the cooling cycle operation.

Heating Operation Sequence

Detailed steps of the heating cycle operation.

Defrost Cycle Operation

How the defrost control operates to remove frost.

Troubleshooting Guides

Troubleshooting - Heating Cycle

Chart to diagnose and resolve heating cycle issues.

Troubleshooting - Cooling Cycle

Chart to diagnose and resolve cooling cycle issues.

Related product manuals