Bryant Preferred 549J 04, Руководство по установке

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Fig. 20 — Condensate Drain Pan (Side View)
Fig. 21 — Condensate Drain Pan Piping Details
Step 11 — Make Electrical Connections
NOTE: Field-supplied wiring shall conform with the limitations
of minimum 63°F (33°C) rise.
FIELD POWER SUPPLY
If equipped with optional powered convenience outlet, the pow-
er source leads to the convenience outlet’s transformer primary
are not factory connected. Installer must connect these leads ac-
cording to required operation of the convenience outlet. If an al-
ways-energized convenience outlet operation is desired, connect
the source leads to the line side of the unit-mounted disconnect.
(Check with local codes to ensure this method is acceptable in
your area.) If a de-energize via unit disconnect switch operation
of the convenience outlet is desired, connect the source leads to
the load side of the unit disconnect. On a unit without a unit-
mounted disconnect, connect the source leads to compressor
contactor C and indoor fan contactor IFC pressure lugs with unit
field power leads. See Convenience Outlets on page 16 for pow-
er transformer connections.
The field power wires are connected to the unit at line-side
pressure lugs on compressor contactor C and indoor fan con-
tactor IFC (see wiring diagram label for control box compo-
nent arrangement) or at factory-installed option non-fused dis-
connect switch. Maximum wire size is #2ga AWG (copper on-
ly). See Fig. 22 and 23 and unit label diagram for field power
wiring connections.
NOTE: Unit may be equipped with short test leads (pigtails) on
the field line connection points on contactor C or optional discon-
nect switch. These leads are for factory-run test purposes only; re-
move and discard before connecting field power wires to unit con-
nection points. Make field power connections directly to line con-
nection pressure lugs only.
Connect field power supply conductors to LINE side terminals
when the switch enclosure cover is removed to attach the handle.
Fig. 22 — Disconnect Switch and Unit
UNITS WITHOUT FACTORY-INSTALLED DISCONNECT
When installing units, provide a disconnect switch per NEC
(National Electrical Code) of adequate size. Disconnect sizing
data is provided on the unit informative plate. Locate on unit
cabinet or within sight of the unit per national or local codes.
Do not cover unit informative plate if mounting the disconnect
on the unit cabinet.
UNITS WITH FACTORY-INSTALLED DISCONNECT
The factory-installed optional disconnect switch is located in a
weatherproof enclosure located under the main control box.
The manual switch handle is accessible through an opening in
the access panel. Discard the factory test leads (see Fig. 23).
WARNING
ELECTRIC SHOCK HAZARD
Failure to follow this warning could result in personal injury or
death.
Unit cabinet must have an uninterrupted, unbroken electrical
ground to minimize the possibility of personal injury if an
electrical fault should occur. This ground may consist of
electrical wire connected to unit ground lug in control
compartment, or conduit approved for electrical ground when
installed in accordance with NEC; ANSI/NFPA 70, latest
edition (in Canada, Canadian Electrical Code CSA [Canadian
Standards Association] C22.1), and local electrical codes.
DRAIN
(FACTORY-INSTALLED) PLUG
CONDENSATE PAN (SIDE VIEW)
STANDARD
SIDE DRAIN
ALTERNATE
BOTTOM DRAIN
NOTE: Tr a p s ho u ld b e deep eno u gh to off s et m a xim u m u nit s t a tic
difference. A 4-in. (102 mm) tr a p i s recommended.
MINIMUM PITCH
1˝ (25 mm) PER
1
0´ (
3 m) OF LINE
BA S E RAIL
OPEN
VENT
TO ROOF
DRAIN
DRAIN PLUG
ROOF
CURB
S EE NOTE
3 ˝ (76 mm)
MIN
WARNING
FIRE HAZARD
Failure to follow this warning could result in personal inju-
ry, death, or property damage.
Do not connect aluminum wire between disconnect switch
and unit. Use only copper wire.
COPPER
WIRE ONLY
ELECTRIC
DI S CONNECT
S WITCH
ALUMINUM
WIRE