![background image](http://html.mh-extra.com/html/carrier/weathermaster-48hc14/weathermaster-48hc14_installation-instructions-manual_2560337018.webp)
18
Fig. 28 — Condensate Drain Piping Details
Step 12 — Make Electrical Connections
NOTE: Field-supplied wiring shall conform with the limitations
of minimum 63°F (3°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. 29 and
30) to either the factory option disconnect or the bottom of the
control box. A 1-in. conduit is provided wrapped around com-
pressor. A second conduit is provided with factory-installed
powered convenience outlet. For those units that require con-
duit larger than 1-in., it must be field supplied. Fig. 29 and 30
show the wire routings.
If the field disconnect is larger than 100A, it must be attached
to the unit using accessory CRDISBKT001A00 — disconnect
switch bracket (see Fig. 31). 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. 32). 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. 29 — Conduit into Factory Option Non-Fused
Disconnect or HACR
Fig. 30 — Conduit into Control Box
Fig. 31 — Mounting Position for Field Disconnects
(over 100A)
WARNING
Failure to follow this warning could result in personal inju-
ry 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.
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
Summary of Contents for WeatherMaster 48HC14
Page 5: ...5 Fig 2 Unit Dimensional Drawing 14 Size Unit ...
Page 6: ...6 Fig 2 Unit Dimensional Drawing 14 Size Unit cont ...
Page 9: ...9 Fig 4 Roof Curb Details ...
Page 25: ...25 Fig 48 48HC 14 Controls Wiring Diagram 208 230 v 460 v 575 v ...
Page 26: ...26 Fig 49 48HC 14 Power Wiring Diagram 208 230 v 460 v ...
Page 27: ...27 Fig 50 48HC 14 Power Wiring Diagram 575 v ...
Page 29: ...29 Fig 53 Typical Humidi MiZer Adaptive Dehumidification System Humidistat Wiring ...
Page 44: ...44 Fig 62 48HC14 ComfortLink Control Wiring Diagram ...
Page 45: ...45 Fig 63 48HC14 ComfortLink Power Wiring Diagram ...
Page 46: ...46 Fig 64 48HC14 ComfortLink with Humidi MiZer Power Wiring Diagram ...