Electrical Installation; Wiring - Daikin Skyline OAH003GDAC Installation And Maintenance Manual

Wiring

Capacitor hazardous voltage! Failure to disconnect power
and discharge capacitors before servicing will result in
serious injury or death. Disconnect all electric power
(including remote disconnects) before servicing. Perform
lockout/tag out procedures to ensure that power can
not be energized. For variable frequency drives,or other
energy storing components that have been furnished and
mounted by either Daikin, or by others, refer to the specific
manufacturer's literature for allowable waiting periods
for discharge of capacitors. Verify capacitors have been
discharged using an appropriate voltmeter.
• This equipment is not suitable for use in high impedance
grounding or neutral systems.
• Connect only to low impedance, solidly grounded electrical
supply systems.
Failure to follow these instructions will result in death or
serious injury.
Use copper conductor only . Failure to use copper
conductors can result equipment damage.
The base section of each cabinet has a drip pan installed
below every panel that drains to the outside frame trough. Any
holes cut through the bottom of the unit must also penetrate
the drip pan. If holes are cut in the drip pan, seal them to
prevent moisture leakage.
IM 777-18 • SKYLINE OUTDOOR AIR HANDLER
DANGER
DANGER
CAUTION
CAUTION
Figure 56: Electrical Conduit Location
• Electrical service to each fan must correspond to the rated
voltage on the motor or electrical panel nameplate and
conform to the National Electric Code and local restrictions.
• Connect each fan section metal frame to the building
electrical ground.
• A door electrical interlock is not provided as standard.
• Thermal motor protection is external to the unit. Locate
electrical conduit entrances for units above the bottom
of the unit, high enough to clear components inside, but
below the bottom of the fan motor junction box
• When the unit is provided with an external junction box
and variable frequency drive (VFD), the VFD itself will
be mounted on the drive side fan panel inside the fan
cabinet. The external junction box will provide loose wire
connection to the VFD and to the motor. An external
mounted keypad/display control box will be provided and
connected to the VFD for manual adjustment of the VFD.
• When not being serviced, close and secure electrical panel
doors to prevent accidental contact with live parts and
prevent ingress of moisture and airborne contaminants.
• For instances where multiple motors are being driven
by a single VFD, be sure to set up the VFD and size the
wiring according to the power requirements of all motors
that are being driven by that VFD.
28
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(Figure 55).
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