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Checkout Procedures
The final phase of the installation is the system Checkout Procedures. The following list represents the most common items covered in a
Checkout Procedure. Confirm all requirements in this document have been met.
☐ All wiring connections are tight and properly secured.
☐ Voltage and running current are within limits.
☐ All refrigerant lines (internal and external to equipment) are
isolated, secure, and not in direct contact with each other or
structure.
☐ All braze connections have been checked for leaks. A vacuum of
350 microns provides confirmation that the refrigeration system
is leak free and dry.
☐ If unit is installed in any orientation other than upflow, refrigerant
sensor is properly relocated.
☐ Final unit inspection to confirm factory tubing has not shifted
during shipment. Adjust tubing if necessary so tubes do not rub
against each other or any component when unit runs.
☐ Ductwork is sealed and insulated.
18-GF79D1-1A-EN
☐ All drain lines are clear with joints properly sealed. Pour water into
drain pan to confirm proper drainage. Provide enough water to
ensure drain trap is primed.
☐ Supply registers and return grilles are open, unobstructed, and air
filter is installed.
☐ Indoor blower and outdoor fan are operating smoothly and
without obstruction.
☐ Indoor blower motor set on correct speed setting to deliver
required CFM. Blower and fan set screws are tight.
☐ Cover panels are in place and properly tightened.
☐ System functions safely and properly in all modes.
☐ Refrigerant leak detection system mitigating actions are verified.
☐ All refrigerant safety procedures have been verified.
☐ Owner has been instructed on use of system and given manual.
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