IMPORTANT : Do not operate system without a filter. A filter is required to protect the coil, blower, and internal parts from excessive dirt and dust. The filter is placed in the return duct by the installer.
IMPORTANT: During installation, service or maintenance, make sure that copper tubing does not rub against metal edges or other copper tubing. Care should also be taken to ensure that tubing does not become kinked. Use wire ties to secure tubing to prevent
Do not secure electrical wires to tubing that carries hot refrigerant gas. Heat from the tubing may melt the wiring insulation causing a short circuit.
NOTE - Refer to outdoor unit installation instructions for system start-up instructions and refrigerant charging instructions.NOTE - Refer to outdoor unit installation instructions for system start-up instructions and refrigerant charging instructions.
CHECK BLOWER OPERATION
CHECK COOLING OPERATION
CHECK ELECTRIC HEATER (IF USED)
Use of Air Handler During Construction
Air handler units may be used for heating (heat pumps) or cooling of buildings under construction, if the following conditions are met: