Tell someone or document it before you close it up.
Diffuser Blowing Across an Open Refrigerated Case
Hold the branch or diffuser layout until the discharge direction is checked against the reflected ceiling plan, refrigeration layout, case lineup, and case manufacturer information. The problem is the actual air pattern at the case-not a guessed duct velocity.
This diffuser is aimed across an open refrigerated case. I checked the reflected ceiling plan and refrigeration layout, and the case lineup appears current. Can we verify the throw and final diffuser orientation before I finish this branch?
Watch out
Do not rotate the diffuser, relocate the branch, or invent a velocity rule to solve the conflict in the field.
Check
Confirm the diffuser location, type, orientation, and throw shown on the approved plan.
Identify the case discharge and return openings and the final case lineup.
Check whether the ceiling layout or case locations changed after coordination.
Photograph the relationship and mark the grid/location before asking for direction.
Steps
Confirm the diffuser location, type, orientation, and throw shown on the approved plan.
Identify the case discharge and return openings and the final case lineup.
Check whether the ceiling layout or case locations changed after coordination.
Photograph the relationship and mark the grid/location before asking for direction.
Say this to your foreman
This diffuser is aimed across an open refrigerated case. I checked the reflected ceiling plan and refrigeration layout, and the case lineup appears current. Can we verify the throw and final diffuser orientation before I finish this branch?