Need help?Do you have a question about the Carrier 50VQ Series and is the answer not in the manual?
Unpacking, inspecting the unit, and verifying jobsite requirements before installation.
Instructions for connecting the supply air ductwork to the unit's flange.
Steps for connecting water supply and return lines, including balancing valves.
Guide for making field electrical connections, branch circuit disconnect, and ground lead.
How to install shutoff valves in water lines for adjustment and servicing.
Instructions for connecting the condensate drain line, including trap installation.
Guidelines for water flow rates, entering water temperature, and system cleanliness.
Steps to follow to safely start the unit after installation, including thermostat adjustment.
Overview of safety devices like high-pressure relief valve and overload protection.
Procedures for checking and adjusting refrigerant charge using charts and devices.
Explanation of controls that prevent unit operation when water approaches freezing.
Steps for removing a compressor, including safety precautions and refrigerant handling.
Information on compressor oil and fan motor bearing lubrication requirements.
Maintenance steps for cleaning the unit's coil, condensate pan, and drain.
Procedures for removing the indoor blower assembly for 50VQ and 50HQ models.
Procedures for removing the indoor fan and motor from the unit.
Guidance on replacing the return air filter and cleaning the heat exchanger.
Troubleshooting steps for when the entire unit fails to operate.
Diagnosing issues when the blower runs but the compressor does not.
Troubleshooting when the unit shuts off due to low water temperature.
Identifying causes and solutions for the unit cycling on and off too frequently.
Addressing problems related to inadequate cooling or heating performance.
Diagnosing and resolving various sources of noise from the unit.
To Next Page
General