Installation
OAU-SVX007A-EN 85
Main Unit Power
Standard Wiring
The electrical service must be protected from over current and
short circuit conditions in accordance with NEC requirements.
Protection devices must be sized according to the electrical
data on the nameplate.
1. Complete the unit’s power wiring connections onto either;
the main terminal block HTB1 inside the unit control panel,
the factory mounted non-fused disconnect switch (UCD) or
circuit breaker (UCB), or the electric heat non-fused
disconnect switch. Refer to the customer connection
diagram that shipped with the unit for specific termination
points.
2. Provide proper grounding for the unit in accordance with
local and national codes.
Use the following checklist in conjunction with the checklist in
“General Unit Requirements,” p. 75 to ensure that the unit is
properly installed and ready for operation.
Voltage Imbalance
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury. Disconnect all electric
power, including remote disconnects before servicing.
Follow proper lockout/tagout procedures to ensure the
power can not be inadvertently energized.Verify that no
power is present with a voltmeter.
AVERTISSEMENT
Risque d’électrocution!
Le non-respect de cette consigne peut entraîner des
blessures graves, voire mortelles. Avant toute
intervention, coupez l’alimentation électrique, y
compris aux sectionneurs à distance. Suivez
scrupuleusement les procédures de verrouillage/mise
hors service préconisées pour empêcher tout
rétablissement accidentel de l’alimentation électrique.
NOTICE
Use Copper Conductors Only!
Failure to use copper conductors could result in
equipment damage as unit terminals are not designed
to accept other types of conductors.
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury. All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state/national electrical codes.
ATTENTION
Câblage et Mise à la Terre Appropriés
Champs Obligatoires!
Le non-respect du code pourrait entraîner la mort ou
grave blessure. Tout le câblage sur le terrain DOIT être
effectué par des personnes qualifiées personnel.
Terrain mal installé et mis à la terre le câblage pose des
risques de FIRE et d’ÉLECTROCUTION. À evitez ces
risques, vous devez suivre les exigences pour
l’installation et la mise à la terre du câblage de terrain
comme décrit dans NEC et vos codes électriques
locaux/étatiques/nationaux.
Verify that the correct size and number of filters are in
place.
Inspect the interior of the unit for tools and debris and
install all panels in preparation for starting the unit.
Check all electrical connections for tightness and “point of
termination” accuracy.
Verify condenser airflow is unobstructed.
Verify that the condenser and indoor fans turn freely
without rubbing and are properly tightened on the shafts.
Check motor mounting bolts and inlet cone for tightness.
Free spin wheel by hand to check for proper alignment of
motor, wheel, and inlet cone. Record motor nameplate
amps at unit-rated voltage.
Check proper indoor fan wheel rotation. Wheel housing
will be marked to indicate direction of proper rotation.
With access doors closed and secured, operate blower at
100 percent speed. Check amp readout of amps output to
indoor fan at VFD display to confirm operation within
motor amp capacity.
WARNING
Live Electrical Components!
Failure to follow all electrical safety precautions when
exposed to live electrical components could result in
death or serious injury. When it is necessary to work
with live electrical components, have a qualified
licensed electrician or other individual who has been
properly trained in handling live electrical components
perform these tasks.
To Next Page
Loading...
Need help?
General