COOK Laboratory Exhaust - Manual (Page 2)

CPSLE
Figure 3 shows a typical CPSLE installation on a Cook RCG curb.
The RCG curb should be securely mounted to the roof per project
documents. Ensure that the curb gasket is in place once the curb
has been installed on the roof. The unit should then be installed on
the curb using the fasteners recommended in figure 3, Use a
minimum of 2 screws per side and a maximum of 12” spacing.
Figure 3
NOZZLE
CURB CAP
LOREN COOK
RCGH CURB
CPSLE UNIT
1/4" SELF-TAPPING
SHEET METAL
SCREWS
(BY OTHERS)
Typical Installations
QMXVP QMXLE, TCNHBLE
Typical installations for QMXVP, QMXLE, and TCNHBLE
are shown below utilizing the Loren Cook LE curb. Figure 1
shows a unit without mixing box and an optional curb mounted
isolation damper. The curb should be secured to the roof
structure per project documents and then the isolation damper
mounted in the curb as required. Ensure that the curb gasket
is present and not damaged once the curb has been properly
installed on the roof. Then the unit should be installed on the
curb using the supplied mounting brackets and recommended
fasteners.
Figure 2 shows a typical installation using a mixing box/
plenum and the Loren Cook LE curb. Similar to above the curb
should be installed first per project documents and then the
unit installed on the curb using recommended fasteners.
C
CURB CAP
Figure 1 DETAIL C
3/8-16 STAINLESS
STEEL BOLT
LE CURB
PVC GASKET
1/4 x 3/4”
SELF TAPPING SHEET
METAL SCREWS
(BY OTHERS)
DUCT WORK
SELF TAPPING SHEET
METAL SCREWS
(BY OTHERS)
B
Figure 2
CURB CAP
MIXING BOX
WIZZ BOLT
CURB
DUCT WORK
1 /4 x 3/4”
SELF-TAPPING
SHEET METALS SCREWS
(BY OTHERS)
PVC
GASKET
3/8-16 STAINLESS
STEEL BOLT
PVC
GASKET
ANGLE
FRAME
DETAIL B
CAVP
ASSEMBLY
1/4" SELF TAPPING
SHEETMETAL SCREWS
(BY OTHERS)
RCGH CURB
PVC GASKET
MIXING BOX
Figure 4
FLEX DUCT CONNECTOR
8" to 16"
ISOLATION
RAIL
ISOLATORS
CAVP
A typical installation for a CAVP with mixing box is shown in figure
4. The CAVP unit is installed on either isolation rails or base as
defined in the project documents. This unit is then installed on the
roof using the correct vibration isolators per the isolator installation
instructions. The mixing box is installed on a roof curb using the
fasteners recommended in figure 4 and the roof curb should be
mounted securely to the roof per the project documents. The final
connection between the fan and mixing box is made using the
supplied flex duct connector.
B
A
Figure 5
Finger-Tight Plug
Finger-Tight Plug
Clean Out
Slope To
Drain
Drain Trap
Drain Pipe
Clean Out
(6" Min)
(6" Min)