Carrier Aquazone 50WD handleiding
Handleiding
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Step 8 — Wire Field Power Supply
See Fig. 26-41 for typical wiring diagrams. See Tables 5-11 for
additional electrical data. Please refer to the unit wiring diagram
attached to the control panel for field installation.
HIGH VOLTAGE WIRING
All field-installed wiring must comply with the National Electric
Code as well as all applicable local codes. Refer to the unit
electrical data on the unit nameplate for wire and branch circuit
protection sizing. Supply power voltage and phasing should match
the required voltage and phasing shown on the unit nameplate.
Operating the unit below the minimum voltage, above the
maximum voltage or with incorrect phasing can result in poor
system performance or damage to the heat pump. All field wiring
should be installed by qualified and trained personnel. Refer to the
unit wiring diagram for field connection requirements.
Power wiring to the heat pump should be enclosed in flexible
conduit to minimize the transmission of vibration from the unit
cabinet to the building.
For heat pumps with unit mounted disconnect switches, field
power should be connected to the marked terminals on the
disconnect switch. For heat pumps without unit-mounted
disconnect switches (except units with dual power supply), power
is connected to the line (L) side of the compressor contactor and
the ground lug in the unit electrical box.
For units with the 65kA SCCR option, the power supply must be
connected to the fuse block located in a dedicated fuse box.
460-v heat pumps with constant airflow motors require five power
supply wires: the standard three high-voltage wires, the ground
wire, and a neutral wire. These units employ a 265-v motor that
requires power from one phase of the 460-v supply and the neutral
wire.
Transformer Settings for 208/230-v Units
As factory built, all 208/230-v units are wired for 230-v operation.
For jobsites with a 208-v power supply, the primary leads on the
unit transformer will need to be changed from 230-v to 208-v.
Refer to the unit wiring diagram for details.
ELECTRIC HEATER
Factory-installed internal electric heater is available for selection
with units. Two power supplies are required when electric heater
is provided with the unit. The power supply for the electric heater
(located in the electric heater package control box) provides power
for the heater elements, the blower motor, and the control circuit
for the unit. The power supply for the unit provides power for the
compressor. This allows the electric heaters to continue to operate
along with the blower motor in the case of unit compressor and/or
compressor power supply failure. See data plates for minimum
circuit capacities and maximum fuse/breaker sizing. See
Tables 5-11 for additional Electrical Data.
WARNING
To avoid possible injury or death due to electrical shock, open
the power supply disconnect switch and secure it in an open
position during installation.
CAUTION
All power connections must be properly torqued to avoid the
risk of overheating.
CAUTION
The power supply ground wire should never be used as a
neutral wire.
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Productinformatie
| Merk | Carrier |
| Model | Aquazone 50WD |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 15865 MB |
