18-GF74D1-1R-EN
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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.
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All wiring connections are tight and properly secured.
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Voltage and running current are within limits.
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All refrigerant lines (internal and external to equipment) are
isolated, secure, and not in direct contact with each other or
structure.
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All braze connections have been checked for leaks. A vacuum of
350 microns provides confirmation that the refrigeration system
is leak free and dry.
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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.
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Ductwork is sealed and insulated.
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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.
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Supply registers and return grilles are open, unobstructed, and air
filter is installed.
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Indoor blower and outdoor fan are operating smoothly and
without obstruction.
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Indoor blower motor set on correct speed setting to deliver
required CFM. “Blower and fan set screws are tight.”
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Cover panels are in place and properly tightened.
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For gas heating systems, manifold pressure has been checked and
all gas line connections are tight and leak free.
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For gas heating systems, flue gas is properly vented.
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System functions safely and properly in all modes.
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Owner has been instructed on use of system and given manual.
