Mechanical Installation
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IM 926-3 • ROOFPAK APPLIED SYSTEMS
Roof Curb Assembly and Installation
WARNING
Mold can cause personal injury. Some materials such as
gypsum wall board can promote mold growth when damp.
Such materials must be protected from moisture that can
enter units during maintenance or normal operation.
Locate the roof curb and unit on a portion of the roof that can
support the weight of the unit. The unit must be supported to
prevent bending or twisting of the machine.
If building construction allows sound and vibration into the
occupied space,
locate the unit over a non-critical area .
It is the responsibility of the system designer to make
adequate provisions for noise and vibration in the
occupied space .
Install the curb and unit level to allow the condensate drain to
flow properly and allow service access doors to open and close
without binding.
Integral supply and return air duct flanges are provided with
the RPS/RFS roof curb, allowing connection of duct work to
the curb before the unit is set. The gasketed top surface of the
duct flanges seals against the unit when it is set on the curb.
These flanges must not support the total weight of the duct
Installing Ductwork on page 47
connections. It is critical that the condensate drain side of the
an the opposite side.
RCS Assembly instructions
1.
Set curbing parts “A” (
sure that the orientation complies with the assembly
instructions.
Check alignment of all mating bolt holes.
2.
Bolt curbing parts together using fasteners provided.
3.
Curb must be level from side to side and over its length.
4. Weld curbing in place. Caulk all seams watertight and
insulate between channels.
5.
Flash curbing into roof as shown in Detail C.
Figure 28: RCS Roof Curb Assembly
RCS unit size
“ZZ”
in . (mm)
015C–030C
31.0 (787)
036C & 040C
94.0 (2057)
045C–060C
62.0 (1575)
070C–105C
100.0 (2540)
Summary of Contents for RoofPak RCS Series
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