Daikin DCC048 SERIES, Руководство по установке

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7
T
O PREVENT DAMAGE TO THE WIRING
,
PROTECT WIRING FROM
SHARP EDGES
. F
OLLOW NATIONAL ELECTRICAL CODE AND ALL
LOCAL CODES AND ORDINANCES
. D
O NOT ROUTE WIRES THROUGH
REMOVABLE ACCESS PANELS
.
CAUTION
C
ONDUIT AND FITTINGS MUST BE WEATHER
-
TIGHT TO PREVENT
WATER ENTRY INTO THE BUILDING
.
CAUTION
For unit protection, use a fuse or HACR circuit breaker that is in
excess of the circuit ampacity, but less than or equal to the maxi-
mum overcurrent protection device. DO NOT EXCEED THE MAXI-
MUM OVERCURRENT DEVICE SIZE SHOWN ON UNIT DATA PLATE.
All line voltage connections must be made through weatherproof
fittings. All exterior power supply and ground wiring must be in
approved weatherproof conduit.
The main power supply wiring to the unit and low voltage wiring
to accessory controls must be done in accordance with these in-
structions, the latest edition of the National Electrical Code (ANSI/
NFPA 70), and all local codes and ordinances. All field wiring shall
conform with the temperature limitations for Type T wire (63°F/
35°C rise).
The unit is factory wired for the voltage shown on the unit’s data
plate. Refer to model nomenclature in Appendix B for voltage re-
quirement for your unit.
NOTE: If supply voltage is 208V, lead on primary of transformer
must be moved from the 230V to the 208V tap. Refer to wiring
diagram on unit for details.
Main power wiring should be sized for the minimum wire ampacity
shown on the unit’s data plate. 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.
CAUTION
T
O AVOID PROPERTY DAMAGE OR PERSONAL INJURY DUE TO FIRE, USE
ONLY COPPER CONDUCTORS.
L
ABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING
CONTROLS
. W
IRING ERRORS CAN CAUSE IMPROPER AND
DANGEROUS OPERATION
. 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’s 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.
• Remove plug in panel located at the condenser end of
unit and route conduit to control box. Remove plug in
control box and connect power wiring to the contactor
closest to the entrance. If Single Point kit is used, refer to
Installation Instructions supplied with kit.
LOW VOLTAGE
BLOCK
MAIN POWER
LOW VOLTAGE
ENTRANCE
POWER THRU
THE CURB
CONTROL BOX
LOW VOLTAGE/THERMOSTAT CONNECTIONS
NOTE: Some models may vary from illustration.
Models with electric heat are equipped
with a power block for field connections.
GROUND
LUG
CONTROL BOX CONNECTIONS
FIELD SUPPLIED WIRING
DDC CONTROL BOX
FIELD SUPPLIED WIRING