Return Air - Rheem H2AC Installation Instructions Manual

FIGURE 7
ROOFCURB
UNIT
INSTALL GASKET
DUCT FLANGE NOT
TO EXCEED
1" [25 mm]
NAILING STRIP
SUPPLY DUCT
42" X 23-3/4" [1089 X 603 mm] MAX
ST-A1125-14
16
H. RETURN AIR
WARNING
NEVER ALLOW PRODUCTS OF COMBUSTION OR THE FLUE PRODUCTS
TO ENTER THE RETURN AIR DUCTWORK, OR THE CIRCULATING AIR SUP-
PLY. ALL RETURN DUCTWORK MUST BE ADEQUATELY SEALED AND
SECURED TO THE FURNACE WITH SHEET METAL SCREWS, AND JOINTS
TAPED. ALL OTHER DUCT JOINTS MUST BE SECURED WITH APPROVED
CONNECTIONS AND SEALED AIRTIGHT.
FAILURE TO PREVENT PRODUCTS OF COMBUSTION FROM BEING CIRCU-
LATED INTO THE LIVING SPACE CAN CREATE POTENTIALLY HAZARDOUS
CONDITIONS, INCLUDING CARBON MONOXIDE POISONING THAT COULD
RESULT IN PERSONAL INJURY OR DEATH.
ROOFCURB
RETURN DUCT
50-3/4" X 22" [1289 x 559 mm] MAX
CAULK ALL JOINTS
WATERTIGHT
FIGURE 8
ROOFCURB
GASKET
NAILER STRIP
DUCT
INSULATION
INSULATION
ROOFTOP UNIT
UNIT BASE FRAME
ROOFCURB
ROOF FLASHING
ROOFING
CANT STRIP
ROOF DECK
ST-A0888-02