Contents

Owners Manual
- NOTE: Read the entire instruction manual before starting the installation.
  - A NOTE ABOUT SAFETY
  - Your new system
  - REGISTER YOUR SYSTEM
  - HEATING AND COOLING YOUR HOME
  - THERMOSTATS
  - PROGRAMMABLE THERMOSTATS
  - ACCESSORIES
  - VARIABLE SPEED OPERATION
  - HEATING MODE
  - COOLING MODE
  - HOT WATER
  - GEOTHERMAL EARTH LOOP
  - WELL WATER / OPEN LOOP SYSTEM
  - FILTERS
  - OPERATION DURING CONSTRUCTION
  - Record your loop location
  - Preventive Maintenance or service record

Carrier GB Owner's Manual

Pages 4

Year 2020

Language(s)

of 4

Carrier GB Specification

The Carrier GB is a high-efficiency gas furnace designed to deliver optimal heating performance for residential applications. It features an advanced multi-speed ECM blower motor that enhances energy efficiency and provides consistent airflow for improved comfort. The furnace operates with an AFUE rating of up to 96.7%, ensuring significant energy savings and reduced utility bills. Equipped with a modulating gas valve, the Carrier GB adjusts its heating output in small increments, maintaining precise temperature control and enhancing overall home comfort. The unit's innovative heat exchanger is crafted from aluminized steel for superior durability and efficient heat transfer. The furnace incorporates a silicon nitride ignition system, replacing traditional pilot lights to improve reliability and longevity. The Carrier GB also includes a fully insulated cabinet, minimizing heat loss and ensuring quiet operation, which enhances the indoor environment's tranquility. It supports advanced diagnostics with a self-diagnostic control board that simplifies maintenance and troubleshooting by providing clear error codes for service technicians. The unit is compatible with various thermostats, including smart home systems, allowing for flexible integration into modern home environments. Designed with versatility in mind, the Carrier GB offers multiple installation configurations, including upflow and horizontal applications, accommodating a wide range of space constraints and ductwork layouts. Safety features such as a pressure switch and limit controls ensure secure operation, providing peace of mind for homeowners. Overall, the Carrier GB combines innovative technology with practical design to deliver reliable, efficient heating, making it a valuable addition to any home heating system.

Carrier GB F.A.Q.

How do I reset my Carrier GB thermostat?

To reset your Carrier GB thermostat, turn off the thermostat and the HVAC system. Wait for about 30 seconds, then turn them back on. This should reset the thermostat.

What should I do if my Carrier GB unit is not cooling properly?

Check the thermostat settings to ensure it's set to 'cool'. Inspect the air filters and clean or replace them if dirty. Additionally, ensure that the outdoor unit is free of debris.

How often should I replace the air filter in my Carrier GB system?

It's recommended to check your air filter every month and replace it every 1 to 3 months, depending on usage and environmental factors.

Why is my Carrier GB unit making a loud noise?

Loud noises can be caused by loose components, debris in the fan, or a failing compressor. Inspect the unit for visible issues and contact a professional if necessary.

How do I clean the coils on my Carrier GB air conditioner?

Turn off the power, remove the outer cover, and gently clean the coils using a soft brush or vacuum. For a deeper clean, use a no-rinse coil cleaner.

What maintenance tasks should I perform regularly on my Carrier GB unit?

Regular maintenance includes cleaning or replacing the air filter, checking the thermostat settings, inspecting the outdoor unit for debris, and scheduling annual professional maintenance.

How can I improve the efficiency of my Carrier GB system?

Ensure proper insulation in your home, regularly replace air filters, and schedule routine maintenance. Upgrading to a programmable thermostat can also enhance efficiency.

What should I do if there is water leaking from my Carrier GB unit?

Check if the condensate drain line is clogged. Clear any blockages, and ensure the line is properly connected. If the problem persists, contact a service technician.

How do I program the schedule on my Carrier GB thermostat?

Refer to the user manual for specific instructions. Generally, you will press the 'schedule' button, set your desired times and temperatures, and save the settings.

What does it mean if my Carrier GB system displays an error code?

An error code indicates a potential issue with the system. Refer to the manual for code meanings or contact a professional technician for diagnosis and repair.