Rooftop Installation - McQuay Maverick I MPS006AY Installation And Maintenance Manual

Rooftop Installation

1 Before locating the unit on the roof, make sure that the
strength of the roof and beams is adequate at that point to
support the weight involved. (See specification sheet for
weight of unit.) This is very important and user's respon-
sibility.
2 For rigging and roofcurb details, see Figures 7 and 8. Use
field-furnished spreaders.
NOTE: Remove shipping boards from unit before installing
on the roofcurb.
3 For roofcurb assembly, see Roofcurb Installation Instruc-
tions.
4 If the roofcurb is not used, provisions for disposing of
condensate water runoff must be provided.
5 The unit should be placed on a solid and level roofcurb or
platform of adequate strength. See Figure 9.
6 The location of the unit on the roof should be such as to
provide proper access for inspection and servicing.
IMPORTANT: If unit will not be put into service immediately, cover
supply and return openings to prevent excessive condensation.
CORNER WEIGHTS BY PERCENTAGE
A B
23% 29%
Figure 8: Packaged Air Conditioner Roofcurb Installation
NOTE: Remove shipping boards from unit before installing on the roofcurb.
HOLD
DOWN
BRACKET
TYP. (4) PLCS.
GASKET
(FULL PERIMETER
AND ON DIVIDERS.
MUST BE ABOVE DUCT
AND INSULATION
PANEL FLANGES.)
*
NOTE
6-1/4
OVERHANG
THIS END
ONLY
INSULATION PANELS
(4) SUPPLIED
NAILING STRIP
*
SUPPLY DUCT
*
RETURN DUCT
IM 865
C D
21% 27%
UNIT
SUPPLY
RETURN
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Figure 7: Packaged Air Conditioner Rigging For Lifting
SPREADER BAR
A
5/8 SHACKLE
(EACH CORNER)
GASKET
NAILER STRIP
DUCT*
ROOFCURB
ROOF
STRUCTURAL
MEMBER*
*BY CONTRACTOR
B
LIFTING BEAM
CABLE OR
CHAIN
D
C I296
ROOFTOP UNIT
1/4 TYP (3) SIDES
*SEE NOTE
COUNTER FLASHING*
INSULATION*
CANT STRIP*
ROOF FELT*
INSULATION*
ROOF DECK*
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