The following should take place the day before
or the morning of crane pick.
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Cone off area where crane will pick from.
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Locate units power source (breaker panel).
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Lockout/Tagout breaker and gas valve.
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Reclaim Refrigerant from unit.
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Disconnect Unit from power and gas.
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Disconnect Control wiring and write down colors used
and terminal locations.
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Check to see if units ductwork is screwed to unit or
curb. Support duct and remove screws if necessary.
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Help crane set up when he gets there.
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Position truck with new rooftop and curb for crane.
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Remove old rooftop unit from rooftop.
Clean top rail of existing roof curb and apply new
foam tape. Inspect condition of roofing and ducts.
Crane up and install adapter curb.
Apply foam tape to top of curb adapter, and
inspect seal between existing curb and adapter.
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Crane up new Rooftop unit and hook up electric
and gas pipe.
Follow manufactures start up procedure,
and inspect all of units components.