Electric Shock Hazard; Field Power Supply - Carrier WeatherExpert Puron 50LC 08 Series Installation Instructions Manual

The piping for the condensate drain and external trap can be com-
pleted after the unit is in place. See Fig. 19.
All units must have an external trap for condensate drainage. In-
stall 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 con-
nection ( / -in.).
3
4
MINIMUM PITCH
1" (25mm) PER
BASE RAIL
10' (3m) OF LINE
OPEN
VENT
TO ROOF
DRAIN
NOTE: Trap should be deep enough to offset maximum unit static
difference. A 4-in. (102 mm) trap is recommended.
Fig. 19 — Condensate Drain Piping Details
Step 10 — Make Electrical Connections
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 elec-
trical wire connected to unit ground lug in control compart-
ment, 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.
NOTE: Field-supplied wiring shall conform with the limitations
of minimum 63°F (33°C) rise.

FIELD POWER SUPPLY

For those units without through-the-curb power, conduit must be
used to route the main power from the condenser end, via the
power entry in the corner post of the unit (see Fig. 20-22) to either
the factory option disconnect or the bottom of the control box. A
one-inch conduit is provided wrapped around compressor. A sec-
ond conduit is provided with factory-installed powered conve-
nience outlet. For those units that require conduit larger than 1-in.,
it must be field supplied. Fig. 20-22 show the various wire rout-
ings. See Fig. 23-29 for wiring information.
If the field disconnect is larger than 100A, it must be attached to
the unit using accessory CRDISBKT001A00 (disconnect switch
bracket) (see Fig. 30). Follow the instructions provided with this
accessory. For smaller field disconnects, be sure to use
screws to mount the disconnect directly to the end panel, follow-
ing the instructions on the Field Disconnect Warning label (see
Fig. 31). In either case, set the disconnect vertical location on the
unit so that a 90 degree fitting can be used to connect the conduit
to the disconnect.
3 in. (76 mm)
MIN
SEE NOTE
ROOF
CURB
DRAIN PLUG
Fig. 20 — Conduit into Factory Option Non-Fused
Disconnect (NFD) or HACR
Fig. 21 — Conduit into Control Box
Fig. 22 — Conduit into Single Point Box
/ -in.
1
2
15