DUOTEC AHV120017 Руководство по эксплуатации и установке - Страница 6
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Печатать страницуOWNER'S MANUAL INSTALLATION INSTRUCTIONS
CAUTION
UNIT DAMAGE HAZARD
Do not install the jumper with 208/240V supply voltage.
Failure to follow this warning WILL result in motor failure.
THIS WILL VOID THE WARRANTY.
OVERCURRENT PROTECTION
The power supply wiring to the unit MUST be provided with
overcurrent protection. Governing codes may require this to be fuses
ONLY or circuit breakers.
For blower cabinets without heaters, a 15 amp or 20 amp circuit may
be used.
Before proceeding with electrical connections, make certain that
supply voltage, frequency, phase, and circuit ampacity are as
specified on the unit rating plate. See unit wiring label for proper field
high and low voltage wiring. Make all electrical connections in
accordance with the NEC and any local codes or ordinances that may
apply. Use copper wire only. The unit must have a separate branch
electric circuit with a field-supplied disconnect switch located within
sight from and readily accessible from the unit.
NOTE: When a pull-out type disconnect is removed from the unit,
only the Load side of the circuit is de-energized. The Line side
remains live until the main (remote) disconnect is turned off.
WARNING
ELECTRICAL SHOCK or UNIT DAMAGE HAZARD
Failure to follow this warning could result in personal injury,
death, and/or property damage.
If a disconnect switch is to be mounted on unit, select a
location where drill and fasteners will not contact electrical
or refrigeration components.
NOTE: Transformer is factory-wired for 230V operation. For 208V
applications the transformer must be rewired to the 208V tap. Refer
to unit wiring label and diagram.
GROUNDING CONNECTION
Use a copper conductor(s) from the ground lug on the No Heat Kit or
ground lugs on the electric heater to a grounded connection in the
electric service panel or a properly installed grounding rod.
LOW VOLTAGE CONTROL CONNECTIONS
Wire low-voltage in accordance with wiring label on the blower (also
refer to Figures 8 - 15. Use 18 AWG color-coded, insulated (35°C
minimum) wire to make the low-voltage connections between:
thermostat, indoor equipment, and outdoor equipment. If thermostat
is located more than 100 feet (31m) from the unit (as measured along
the low voltage wire), use 16 AWG color-coded, insulated (35°C
minimum) wire. All wiring must be NEC Class 1 and must be
separated from incoming power leads. Refer to outdoor unit wiring
instructions for additional wiring recommendations.
Field supplied low-voltage wiring should be field connected inside
control splice box area (secure with wire nuts), and strain relief
bushing or rubber grommet to seal cabinet opening.
Fan control board is circuited for single−stage heater operation.
When additional heater staging is desired (using indoor wall
thermostat or ODTS), remove the Jumper J2 on fan control board
to enable staging.
THERMOSTAT FIELD CONNECTIONS
Dh
is used if additional latent capacity control is required (see
Dehumidification Capability in the Accessories section for
more detail).
R
R signal is 24V hot to thermostat
W1
W1 signal controls electric heat from the thermostat
W2
W2 signal from a two-stage thermostat or outdoor thermostat
Y1
Connection for the low-speed compressor operation
Y/Y2 Connection for the Y signal or high speed (Y2) signal from the
thermostat
G
Connection for the G (fan) signal is energized from the
thermostat, 'HUM2' and AUX2' terminals are energized when
G energized
Connection for the 'O' signal from the thermostat
O
C
Connection for the C terminal to the thermostat (24V
common) also common to SEC1, HUM1, AUX1
Figure 7
Electrical Controls
Low Voltage
Connections
Filler Plate
Adapter Plate
No Heat Kit
Ground
Connection
6
DUOTEC AIR HANDLER: AHV
Control Splice Box