MUA-SVX01A-EN • Direct-Fired Make-up Air
29
Installation
Locating the Unit
Prior to locating the unit, authorities having jurisdiction should be consulted
before installations are made. Approval permits should be checked against the
unit received.
If in doubt regarding the application of this appliance, consult the factory.
Locate the unit exactly level. Special attention should be given to the duct,
electrical and fuel connection points. Install duct work with adequate flexible
connections to isolate vibration from the duct work. All duct work should have
taped or caulked seams. Duct work should be properly sized so as not to inhibit
airflow. This information should be cross-checked with the position of support
beams and stand pipes to ensure that clearance dimensions coincide with those
of the unit. The minimum clearance to combustible material must be maintained
as listed in Table 4.
WARNING
Combustible
Materials!
Maintain proper clearance between the unit heat exchanger, vent surfaces and
combustible materials. Refer to unit nameplate and installation instructions for
proper clearances. Improper clearances could result in a fire hazard. Failure to
maintain proper clearances could result in death or serious injury or property
damage.
Note 11.
Consider control side as front of unit.
Note 12.
Optimal clearance for shaft removal would be equivalent to cabinet width.
Outdoor, Curb Mounting
The roof curb and rooftop heating units should be set level in order to ensure
proper operation.
See Figures 4 through 9 for roof curb dimensions.
All installations must conform with local building codes, or in the absence of
local codes, with the National Fuel Gas Code ANSI Z223.1.
Roof Support
The roof must be capable of adequately supporting the weight of the rooftop
heating unit as well as the curb. Tables 1, 2, and 3 show approximate unit
weights and roof curb weights for indoor and outdoor units.
Clearance to Combustible Material
Vertical Units
Horiz. Units
Front*
39
"39"
Rear
6
"6"
Right
6
"6"
Left
6
"6"
Top
12
"12"
Floor
0
6"
Содержание DFIA
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