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Fig. 16 — Condensate Drain Piping Details
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 connection
(3/4 in.).
Step 10 — Make Electrical Connections
NOTE: Check all factory and field electrical connections for tight
-
ness. 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. 17-19) to either
the factory option disconnect or the bottom of the control box. A
1 in. conduit is provided wrapped around compressor. A second
conduit is provided with factory-installed powered convenience
outlet. For those units that require a conduit larger than 1 in.,
the conduit must be field-supplied. Figures 17-19 show the
wire routings.
If the field disconnect is larger than 100-A, it must be attached to
the unit using accessory CRDISBKT001A00 — disconnect
switch bracket (see Fig. 20). Follow the instructions provided with
this accessory. For smaller field disconnects, be sure to use 1/2 in.
screws to mount the disconnect directly to the end panel (see
Fig. 21). 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.
Fig. 17 — Conduit into Factory Option Disconnect
Fig. 18 — Conduit into Control Box
Fig. 19 — Conduit into Single Point Box
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.
Minimum Pitch
1" (25 mm) Per
10' (3m) of Line
To Roof
Drain
Base Rail
Open
Vent
3" (76 mm)
See Note
Roof
Curb
Drain Plug
NOTE: Trap should be deep enough to offset maximum unit static
difference. A 4 in. (102 mm) trap is recommended.
Min
Summary of Contents for WeatherMaker 50FC-16 Series
Page 4: ...4 Fig 2 50FC 16 Unit Dimensional Drawing ...
Page 5: ...5 Fig 2 50FC 16 Unit Dimensional Drawing cont ...
Page 8: ...8 Fig 5 50FC 16 Roof Curb Details ...
Page 21: ...21 Fig 42 Typical Control Wiring Diagram Electro Mechanical with W7220 Controller ...
Page 22: ...22 Fig 43 Typical Control Wiring Diagram SystemVu Controller ...
Page 23: ...23 Fig 44 Typical Power Wiring Diagram 208 230 460 3 60 Unit Shown ...
Page 24: ...24 Fig 45 Typical Power Wiring Diagram 575 3 60 Unit Shown ...
Page 41: ......