_______ registers accomplishes the mixing of the air, the _______grille does not.
A. Supply, Return
B. Return, Supply
C. Dampers, Supply
D. Dampers, Return - Answer: A. Supply, Return
On New construction projects, the indoor section should be in the _____ mode during the finishing phases...
, _______ registers accomplishes the mixing of the air, the _______grille does not.
A. Supply, Return
B. Return, Supply
C. Dampers, Supply
D. Dampers, Return - Answer: A. Supply, Return
On New construction projects, the indoor section should be in the _____ mode during the finishing
phases of construction.
A. In Cooling
B. In Heating
C. Fan Only
D. Off - Answer: D. Off
The low return air temperatures can lead to the formation of condensate. Condensate in the presence
of chlorides and fluorides form paint, varnish, stains, adhesives, cleaning compounds, and cements
creates a corrosive condition.
To reduce the sound transmission of the indoor unit in a closet, alcove or utility room you should _____
A. Insulate the return
B. raise the blower speed.
C. Use isolators.
D. Lower the blower speed. - Answer: C. Use isolators.
Isolation pads absorb the vibrations caused by the blower motor or by refrigerant being pumped
through the connection tubing
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