Daikin DBC0363B Series Installation Instructions Manual page 8

• The unit must be electrically grounded in accordance
with local codes or, in the absence of local codes,
with the latest edition of the National Electrical Code
ANSI/NFPA 70, and/or the Canadian Electrical Code,
CSA C22.1, Part 1. A ground lug is provided for this
purpose. Do not use the ground lug for connecting a
neutral conductor.
• Connect power wiring to the electrical power block
located within the main control box.
LOW
VOLTAGE
BLOCK
CONTROL
BOX
POWER AND LOW VOLTAGE BLOCK CONNECTIONS
Power and Low Voltage Block Connections
NOTE: CHECK TRANSFORMER TO MATCH THE
CORRECT VOLTAGE TAP WITH LINE VOLTAGE
GROUND LUG
DBH036 Control Box
CONTROL BOX
LOW VOLTAGE
BLOCK
DBC036 Belt Drive
DBH036
DBH036
CONTROL BOX
NOTE: CHECK TRANSFORMER TP MATCH THE
CORRECT VOLTAGE TAP WITH LINE VOLTAGE
GROUND LUG
DBC036 Control Box Connections
note: depending on the options installed, the
location of the components may vary in some
models.
Failure of unit due to operation on improper
line voltage or with excessive phase unbalance
constitutes product abuse and is not covered by
the warranty. It may cause severe damage to the
unit's electrical components.
Areas Without Convenience Outlet
It is recommended that an independent 115V power source
be brought to the vicinity of the roof top unit for portable
lights and tools used by the service mechanic.
NOTE: Refer to local codes for requirements.
These outlets can also be factory installed.
Units installed on Roof Tops
Main power and low voltage wiring may enter the unit
through the condenser end of unit or through the roof curb.
Install conduit connectors at the desired entrance locations.
External connectors must be weatherproof. All holes in the
unit base must be sealed (including those around conduit
nuts) to prevent water leakage into building. All required
conduit and fittings are to be field supplied.
Supply voltage to roof top unit must not vary by more than
10% of the value indicated on the unit data plate. Phase
voltage unbalance must not exceed 2%. Contact your local
power company for correction of improper voltage or phase
unbalance.
8
CONTROL BOX
WARNING