Trane Voyager Commercial, Инструкция по установке, эксплуатации и обслуживанию

Страница: 13 / 156

RT-SVX34R-EN 13
Unit Dimensions and Weights
Recommended Clearances
Adequate clearance around and above each Voyager
Commercial unit is required to ensure proper operation
and to allow sufficient access for servicing.
If the unit installation is higher than the typical curb
elevation, a field constructed catwalk around the unit is
recommended to provide safe, easy access for
maintenance and servicing.
, p. 19 lists the
recommended clearances for single and multiple unit
installation. These clearances are necessary to assure
adequate serviceability, cataloged capacities, and peak
operating efficiency.
If the clearances available on the job site appear to be
inadequate, review them with your Trane sales
representative.
Roof Curb and Ductwork
The curbs for the 27.5 to 50 Tons commercial rooftop
units enclose the entire unit base area. They are
referred to as “full perimeter” type curbs.
Step-by-step instructions for the curb assembly and
installation with curb dimensions and curb
configuration for “A”, “B”, and “C” cabinets ship with
each Trane accessory roof curb kit. (See the latest
edition of the curb installation guide) Follow the
instructions carefully to assure proper fit when the unit
is set into place.
The S/A and R/A ductwork adjoining the roof curb must
be fabricated and installed by the installing contractor
before the unit is set into place. Trane curbs include
flanges around the openings to accommodate duct
attachment.
Ductwork installation recommendations are included in
the instruction booklet that ships with each Trane
accessory roof curb kit.
N No otte e:: For sound consideration, cut only the holes in the
roof deck for the supply and return duct
penetration. Do not remove the roof decking
from the inside perimeter of the curb.
IIff a a T Trra an ne e ccu urrb b a acccce esssso orry y kkiitt iiss n no ott u usse ed d::
• The ductwork can be attached directly to the S/A
and R/A openings. Be sure to use a flexible duct
connector at the unit.
• For “built-up” curbs supplied by others, gaskets
must be installed around the curb perimeter flange,
Supply Air opening, and Return Air openings.
• Insulation must be installed on the bottom of the
condenser section of the unit.
Horizontal Ductwork
When attaching the ductwork to a horizontal supply or
horizontal return unit, provide a water tight flexible
connector at the unit to prevent noise transmission
from the unit into the ductwork. Refer to figures
beginning on page for the S/A and R/A opening
dimensions.
All outdoor ductwork between the unit and the
structure should be weather proofed after installation is
completed.
If optional power exhaust is selected, an access door
must be field-installed on the horizontal return
ductwork to provide access to exhaust fan motors.