Bryant 580J*04A, Руководство по установке

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Non-powered type — Requires the field installation of a gen-
eral-purpose 125-volt 15-A circuit powered from a source else-
where in the building. Observe national and local codes when
selecting wire size, fuse or breaker requirements and discon-
nect switch size and location. Route 125-v power supply con-
ductors into the bottom of the utility box containing the duplex
receptacle.
Unit-powered type — A unit-mounted transformer which is
factory-installed to step-down the main power supply voltage
to the unit to 115-v at the duplex receptacle. This option also
includes a manual switch with fuse, located in a utility box and
mounted on a bracket behind the convenience outlet; access is
through the unit’s control box access panel. See Fig. 27.
The primary leads to the convenience outlet transformer are
not factory-connected. Selection of primary power source is a
customer-option. If local codes permit, the transformer primary
leads can be connected at the line-side terminals on the unit-
mounted non-fused disconnect or HACR breaker switch; this
will provide service power to the unit when the unit disconnect
switch or HACR switch is open. Other connection methods
will result in the convenience outlet circuit being de-energized
when the unit disconnect or HACR switch is open. See Fig. 30.
Fig. 30 — Powered Convenience Outlet Wiring
Test the GFCI receptacle by pressing the TEST button on
the face of the receptacle to trip and open the receptacle. Check
for proper grounding wires and power line phasing if the GFCI
receptacle does not trip as required. Press the RESET button to
clear the tripped condition.
Fuse on power type — The factory fuse is a Bussman “Fuse-
tron”* T-15, non-renewable screw-in (Edison base) type plug
fuse.
Test the GFCI receptacle by pressing the TEST button on
the face of the receptacle to trip and open the receptacle. Check
for proper grounding wires and power line phasing if the GFCI
receptacle does not trip as required. Press the RESET button to
clear the tripped condition.
Using unit-mounted convenience outlets: Units with unit-
mounted convenience outlet circuits will often require that two
disconnects be opened to de-energize all power to the unit.
Treat all units as electrically energized until the convenience
outlet power is also checked and de-energization is confirmed.
Observe National Electrical Code Article 210, Branch Circuits,
for use of convenience outlets.
FACTORY-OPTION THRU-BASE CONNECTIONS
(ELECTRICAL CONNECTIONS) — This service con-
nection kit consists of a
1
/
2
-in. electrical bulkhead connector
and a 1
1
/
4
-in. electrical bulkhead connector, all factory-in-
stalled in the embossed (raised) section of the unit basepan in
the condenser section. The
1
/
2
-in. bulkhead connector enables
the low-voltage control wires to pass through the basepan. The
1
1
/
4
-in electrical bulkhead connector allows the high-voltage
power wires to pass through the basepan. See Fig. 31.
Check tightness of connector lock nuts before connecting
electrical conduits.
Field-supplied and field-installed liquid tight conduit con-
nectors and conduit may be attached to the connectors on the
basepan. Pull correctly rated high voltage and low voltage
through appropriate conduits. Connect the power conduit to the
internal disconnect (if unit is so equipped) or to the external
disconnect (through unit side panel). A hole must be field cut in
the main control box bottom on the left side so the 24-v control
connections can be made. Connect the control power conduit to
the unit control box at this hole.
Units Without Thru-Base Connections
1. Install power wiring conduit through side panel open-
ings. Install conduit between disconnect and control
box.
2. Install power lines to terminal connections as shown in
Fig. 23.
Voltage to compressor terminals during operation must be
within voltage range indicated on unit nameplate. See Table 7
and 8. On 3-phase units, voltages between phases must be bal-
anced within 2% and the current within 10%. Use the formula
shown in the legend for Tables 7 and 8 to determine the percent
of voltage imbalance. Operation on improper line voltage or
excessive phase imbalance constitutes abuse and may cause
damage to electrical components. Such operation would invali-
date any applicable Bryant warranty.
Field Control Wiring — The 580J unit requires an external
temperature control device. This device can be a thermostat
emulation device provided as part of a third-party Building
Management System.
Thermostat — Install a Bryant-approved accessory thermostat
according to installation instructions included with the accesso-
ry. Locate the thermostat accessory on a solid wall in the condi-
tioned space to sense average temperature in accordance with
the thermostat installation instructions. If the thermostat con-
tains a logic circuit requiring 24-v power, use a thermostat ca-
ble or equivalent single leads of different colors with minimum
of seven leads. If the thermostat does not require a 24-v source
(no “C” connection required), use a thermostat cable or equiva-
lent with minimum of six leads. Check the thermostat installa-
tion instructions for additional features which might require ad-
ditional conductors in the cable. For wire runs up to 50 ft (15
m), use no. 18 AWG (American Wire Gage) insulated wire [35
C (95 F) minimum]. For 50 to 75 ft (15 to 23 m), use no. 16
AWG insulated wire [35 C (95 F) minimum]. For over 75 ft
(23 m), use no. 14 AWG insulated wire [35 C (95 F) mini-
mum]. All wire sizes larger than no. 18 AWG cannot be direct-
ly connected to the thermostat and will require a junction box
and splice at the thermostat.
UNIT
VOLTAGE
CONNECT
AS
PRIMARY
CONNECTIONS
TRANSFORMER
TERMINALS
208, 230 240
L1: RED+YEL
L2: BLU+YEL H1+H3
H2+H4
460 480
L1: RED
Splice BLU+YEL
L2: GRA H1
H2+H3
H4
575 600
L1: RED
L2: GRA H1
H2
* Bussmann and Fusetron are trademarks of Cooper Technologies Company.