38
OAU-SVX004D-EN
Installation
Ductwork
Elbows with turning vanes or splitters are recommended
to minimize air noise due to turbulence and to reduce static
pressure.
When attaching the ductwork to the unit, provide a water-
tight flexible connector at the unit to prevent operating
sounds from transmitting through the ductwork.
All outdoor ductwork between the unit and the structure
should be weather proofed after installation is completed.
Note:
For sound consideration, cut holes in the roof deck
only for the ductwork penetrations. Do not cut out
the roof deck within the entire curb perimeter. All
duct work must be installed and connected to top of
roof curb before the unit is set on curb.
If a Curb Accessory Kit is not used:
1. Be sure to use flexible duct connections at the unit.
2. Gaskets must be installed around the curb perimeter
flange and the supply and return air opening flanges.
Note:
For units will electric heat in the primary heating
position, refer to figure below.
General Unit Requirements
The checklist listed below is a summary of the steps
required to successfully install a commercial unit. This
checklist is intended to acquaint the installing personnel
with what is required in the installation process.
It does
not replace the detailed instructions called out in
the applicable sections of this manual.
WARNING
Hazardous Service Procedures!
Failure to follow all precautions in this manual and on
the tags, stickers, and labels could result in death or
serious injury.
Technicians, in order to protect themselves from
potential electrical, mechanical, and chemical hazards,
MUST follow precautions in this manual and on the
tags, stickers, and labels, as well as the following
instructions: Unless specified otherwise, disconnect all
electrical power including remote disconnect and
discharge all energy storing devices such as capacitors
before servicing. Follow proper lockout/tagout
procedures to ensure the power can not be
inadvertently energized. When necessary to work with
live electrical components, have a qualified licensed
electrician or other individual who has been trained in
handling live electrical components perform these
tasks.
AVERTISSEMENT
Procédures d’entretien dangereuses !
Le non-respect de toutes les précautions contenues
dans ce manuel ainsi que sur les étiquettes et les
autocollants peut entraîner des blessures graves voire
mortelles. Les techniciens, afin d’être protégés des
éventuels risques électriques, mécaniques et
chimiques, DOIVENT suivre les précautions contenues
dans ce manuel, sur les étiquettes et les autocollants,
ainsi que les instructions suivantes : Sauf indication
contraire, coupez toute l’alimentation électrique y
compris les disjoncteurs à distance et déchargez tous
les dispositifs de stockage d’énergie comme les
condensateurs avant l’entretien. Respectez les
procédures de verrouillage et d’étiquetage appropriées
pour éviter tout risque de remise sous tension
accidentelle. S’il est nécessaire de travailler avec des
composants électriques sous tension, demandez à un
électricien qualifié et agréé ou à une autre personne
ayant la formation nécessaire pour manipuler des
composants électriques sous tension d’exécuter ces
tâches.
Figure 39.
Important:
Bottom discharge units with open coil
electric heater in primary heat location
require discharge duct with 90° elbow. This
is a MANDATORY installation requirement.
Note:
A minimum 48" of straight duct is required before
an elbow. This is a requirement for both vertical
and horizontal discharge regardless of heat type.
Check the unit for shipping damage and material
shortage. File a freight claim and notify appropriate
sales representative if damage or shortage is
discovered.
Verify that the unit nameplate model, options, and
voltage are correct.
Verify that the installation location of the unit will
provide the required clearance for proper operation.
48 in. (121.9 cm)
Minimum straight duct
distance before an elbow
for either gas heat
or electric heat
Airflow
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Страница 84: ...Appendix 84 OAU SVX004D EN Figure 79 BAYSENS036A installation instructions ...
Страница 85: ...Appendix OAU SVX004D EN 85 Figure 80 VELCON 0351 installation instructions ...
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