Daikin DCH072 SERIES User Manual

PRODUCT DESIGN
8
Main power wiring should be sized for the minimum wire
ampacity shown on the unit’s database. Size wires in
accordance with the ampacity tables in Article 310 of the
National Electrical Code. If long wires are required, it may be
necessary to increase the wire size to prevent excessive
voltage drop. Wires should be sized for a maximum of 3%
voltage drop.
T O AVOID PROPERTY DAMAGE OR PERSONAL INJURY DUE TO FIRE , USE
ONLY COPPER CONDUCTORS .
CAUTION
T O PREVENT IMPROPER AND DANGEROUS OPERATION DUE TO WIRING
ERRORS , LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING
CONTROLS . V ERIFY PROPER OPERATION AFTER SERVICING .
CAUTION
NOTE: A weather-tight disconnect switch, properly sized
for the unit total load, must be field or factory installed. An
external field supplied disconnect may be mounted on the
exterior panel.
Ensure the data plate is not covered by the field-supplied
disconnect switch.
• Some disconnect switches are not fused. Protect the
power leads at the point of distribution in accordance with
the unit data plate.
• 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). A ground lug is provided for this purpose. Size
grounding conductor in accordance with Table 250-95 of
the National Electrical Code. Do not use the ground lug
for connecting a neutral conductor.
• Connect power wiring to the electrical middle contactor
within the main control box of power block, if equipped.
Low Voltage
Terminal Strip
Thermostat wiring
for all units
connect to low
voltage strip
Ground
Lug
Line voltage connects
to power block on
Coolers and the 230v
Gas Packs
Line voltage connects
to middle contactor
on 460v and 575v
Gas Packs
(or power block
if equipped)
Power Block
(Coolers &
230V Gas Packs
Only)
Field wiring enters
from this direction
POWER AND LOW VOLTAGE BLOCK LOCATIONS
Route field
control wiring
through
grommet
Field connection
for
control wiring
at
terminal block
HIGH
Ground Lug
LOW
Field wiring
enters from
this direction
Field
connection
for
line voltage

Daikin DCH072 SERIES Specifications

General

Brand	Daikin
Model	DCH072 SERIES
Category	Heat Pump
Language	English