Bryant LEGACY 580J*20M Series, Installation Instructions Manual

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Step 10 — Install External Condensate Trap and
Line —
The unit has one 3 /
4
-in. condensate drain connection on
the end of the condensate pan (see Fig. 21). See Fig. 2-4, item
“E”, in the view labeled “BACK” for the location of the conden-
sate drain connection.
Fig. 21 — Condensate Drain Pan Connection
The piping for the condensate drain and external trap can be
completed after the unit is in place. Hand tighten fittings to the
drain pan fitting. Provide adequate support for the drain line.
Failure to do so can result in damage to the drain pan. See
Fig. 22.
Fig. 22 — Condensate Drain Piping Details
All units must have an external trap for condensate drainage.
Install a trap at least 4-in. (102 mm) deep and protect against
freeze-up. If drain line is installed downstream from the external
trap, pitch the line away from the unit at 1-in. per 10 ft (25 mm in
3 m) of run. Do not use a pipe size smaller than the unit connec-
tion ( 3 /
4
-in.).
Step 11 — Make Electrical Connections
NOTE: Field-supplied wiring shall conform with the limita-
tions of minimum 63°F (33°C) rise.
FIELD POWER SUPPLY — If equipped with optional
Powered Convenience Outlet: The power source leads to the
convenience outlet’s transformer primary are not factory con-
nected. Installer must connect these leads according to required
operation of the convenience outlet. If an always-energized con-
venience 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 the line side with unit field power
leads. See Fig. 23.
Fig. 23 — Location of TB1
Field power wires are connected to the unit at line-side pres-
sure lugs on the terminal block (see wiring diagram label for
control box component arrangement) or at factory-installed op-
tion non-fused disconnect switch. Use copper conductors only.
NOTE: Make field power connections directly to line
connection pressure lugs only.
CONDENSATE
DRAIN
CONNECTION
NOTE: Trap should be deep enough to offset maximum unit static
difference. A 4-in. (102 mm) trap is recommended.
MINIMUM PITCH
1” (25mm) PER
10’ (3m) OF LINE
BASE RAIL
OPEN
VENT
TO ROOF
DRAIN
DRAIN PLUG
ROOF
CURB
SEE NOTE
3˝ in. (76 mm)
MIN
WARNING
Failure to follow this warning could result in personal
injury or death.
Do not use gas piping as an electrical ground. 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 (National Electrical Code); ANSI/
NFPA 70, latest edition (in Canada, Canadian Electrical
Code CSA [Canadian Standards Association] C22.1), and
local electrical codes.
WARNING
Failure to follow this warning could result in intermittent
operation or unsatisfactory performance.
Do not connect aluminum wire between disconnect switch
and air conditioning unit. Use only copper wire. (See
Fig. 24.)
LOAD
SIDE
SEE
DETAIL
A
DETAIL
A
LINE
SIDE
BLK
YEL
BLU
CONTROL BOX
L3
L2
L1