Carrier 48GH - Manual (Page 6)

Table 2 — Electrical Data
MODEL
48
GL0Ï¥
GL024
GH024
GL030
GH030
GL036
GH036
GL042
GH042
GL048
GH048
GL060
GH060
*Use only copper wire for field connections to unit Wire size is
based on 60 C or 75 C copper conductor at 86 F (30 C) ambient
temperature and ampacity shown in table If other than 60 C or
75 C copper conductor is used, if ambient temperature is above
86 F, or if voltage drop of the wire exceeds 2% of total rated
Adhere to the following criteria when selecting,
sizing, and installing duct system:
1. Select and size ductwork, supply-air registers
and return-air grilles according to Carrier Sys­
tem Design Manual, Part 2. System airflow must
be within range of temperature rise and external
static pressure shown on unit A.G. A. rating plate.
CAUTION: When dtict-sysiem fastening holes
are being drilled into side of Model 4SGH/GL
instead of the unit duct flanges, use extreme care
to avoid puncturing coil or coil tubes,
2. Use a flexible transition between rigid ductwork
and unit to prevent transmission of vibration.
The transition may be screwed or bolted to duct
flanges. Use suitable gaskets to ensure a weather
and airtight seal.
3. Install an external, field-supplied air filter(s)
in return-air ductwork where it is easily accessible
for service. Recommended filter sizes are shown
in Table 1.
4. Size all ductwork for maximum required airflow
(either heating or cooling) for unit being in­
stalled. Avoid abrupt duct size increases or
decreases.
5. Adequately insulate and weatherproof all duct­
work located outdoors. Insulate ducts passing
OPER
VOLTAGE TOTAL
AMPS
MAX BRANCH UNIT AMPACITY MIN MAX WIRE
SERIES V/PH
RANGE CIRCUIT FUSE FOR WIRE SIZE LENGTH
Min Max
SIZE (Amps) WIRE SIZING (AWG)» (ft)*
300 208-230/1 197 253 11 4 20 13 8 14 67
300 208-230/1 197 253 160 30 19 4 12 76
300 208-230/1 197 253 17 3 30 20 7 10 112
300/310 208-230/1 197 253 19 3 35 23 4 10 100
300/310 208-230/1 197 253 19 1 35 23 2 10 101
300/310 208-230/1 197 253 25 0 45 30 0 10 77
500/510 208-230/3 187 253 18 6 35 21 9 10 121
600/610 460/3 414 506 9 1 15 10 8 14 218
300/310 208-230/1 197 253 24 8 45 29 8 10 78
500/510 208-230/3 187 253 19 5 35 22 8 10 116
300 208-230/1 197 253 26 4 50 31 8 8 117
500 208-230/3 187 253 21 9 40 25 8 10 103
300 208-230/1 197 253 26 2 50 31 6 8 117
500 208-230/3 187 253 21.3 40 25.2 10 106
300/310 230/1 207 253 30 3 60 36 3 8 107
500/510 208-230/3 187 253 26 6 45 30 8 8 135
600/610 460/3 414 506 11 7 20 13 5 14 169
300/310 230/1 207 253 29 5 60 35 5 8 110
500/510 208-230/3 187 253 24 6 45 28 8 10 92
300/310 230/j 207 253 43 4 60 52 3 6 116
500/510 208-230/3 187 253 30 4 50 35 6 8 118
600/610 460/3 414 506 15 3 25 17 9 12 205
300/310 230/1 207 253 43 7 60 52 6 6 116
500/510 208-230/3 187 253 29 4 50 34 6 8 122
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voltage of the unit, determine wire size from ampacity shown
and National Electrical Code (NEC) Wire lengths shown are
measured one way along wire path between unit and service
panel for minimum voltage drop
thru an unconditioned space, and use a vapor
barrier in accordance with latest issue of
SMACNA and NESCA minimum installation
standards for heating and air conditioning
systems. Secure all ducts to building structure.
6. Flash, weatherproof and vibration-isolate all
openings in building structure in accordance
with local codes and good building practices.
Typical Wiring Connections
WARNING: Iftiii cabinet amst have an
interrupted,
nnbroten electrical gronud to
minimize the possibiSty of personaf injury
if zxi eiectEical fault should occur. His ground
may consist of electrkai wire connected to unit
ground lag in control cotnpartnrent, or conduit
approved for electrical ground when installedin
accordance with National Electric^ Code and
local electrical codes. Do not use gas piping;
as an electrical ground. A failure to follow this
warning could result in the installer being liable
for the personal injury of others.
CAUTION: A failure to follow these precau­
tions could result in damage to unit being
installed:
(%