York YPAL 051 User Manual

JOHNSON CONTROLS

FORM 100.50-NOM6 (1207)

YORK offers an optional roof curb designed specifi cally 
for the eco2 foot print.  This curb comes as an open 
condenser model and is shipped disassembled and 
requires fi eld assembly during installation.  Refer to 
the Installation Manual that is shipped with the roof 
curb for specifi c instructions.  For bottom supply and 
return openings, the curb has matching connections to 
ease installation.

The curb should be located according to the location 
recommendations above, and properly sealed to prevent 
moisture and air leakage into and out of the duct system.  
Flexible collars should be used when connecting the 
duct work to prevent unit noise transmission and 
vibration into the building.  The roof curb drawings 
contained in the Johnson Controls literature are not 
intended as construction documents for fi eld fabrication 
of a roof curb.  Johnson Controls will not be responsible 
for the unit fi t up, leak integrity, or sound level with 
fi eld fabricated roof curbs.

Construction documents for fi eld fabricated roof curbs 
are available upon request.