Trane 4YCY4024, Installer'S Manual

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Page 19
Installer’s Guide
*Filters must be installed in the return air system. The above square
footages are based on 300 F.P.M. face velocity. If permanent filters are
used, size per mfg. Recommendation with clear resistance of 0.05" W.C.
High Altitude Installation
Figure 19. Power Wiring
Run power supply Lines through weather-tight conduit
and secure to unit with strain relief
Unit nameplate ratings are based on equipment operation from sea
level to 2000 feet elevation above sea level. No orifice changes
required for high altitude installation, please refer to below chart
for rating information.
Table 4. High Altitude Derate Chart
Unit Input
115k 2001 3000 4000 5000 6000 7000 8000
High stage
112100 104100 96200 88100 86900 85600 85100
Low stage
84000 78100 72100 66100 65100 64200 63800
90k
High stage
87700 81500 75200 69000 68000 67000 66500
Low stage
65700 61100 56400 51700 51000 50200 49900
70k
High stage
68200 63300 58500 53600 52900 52100 51800
Low stage
51100 47600 43900 40200 39600 39100 38800
60k
High stage
58500 54300 50100 46000 45300 44700 44300
Low stage
43800 40700 37600 34500 34000 33400 33200
For LP installations. Models that require #49 orifices, for
altitudes from 7000 - 8000' orifices must be changed to #50.
HIGH ALTITUDE DERATE CHART NAT.
Altitude (In Feet)
Inputs shown are with factory orifices @ 3.5"WC (High Fire)
1.8"WC (Low Fire)
Natural Gas heating value of 950 btu/cuft.
Electrical Connections
Electrical wiring and grounding must be installed in accordance
with local codes or, in the absence of local codes, with the National
Electrical Code ANSI/NFPA 70, Latest Revision.
NOTE:
This unit is factory wired for 230V. See wiring dia-
gram for 208V conversion.
NOTE: For branch circuit wiring (main power supply to unit
disconnect), determine wire size for the length of run using the
circuit ampacity found on the unit nameplate and the N.E.C.
For more than 3 conductors in a raceway or cable, see the N.E.C.
for derating the ampacity of each conductor.
Table 5. Filter Sizes (field supplied filter rack)
Air Filter Installation
The packaged unit requires an air filter. The unit does not come
with a factory installed filter rack in it, however, two filter frame ac -
cessories are offered that will allow the installation of a filter within
the unit, BAYFLTR101 & BAYFLTR201. Otherwise a field supplied
filter rack must be installed by the installer in the return duct work.
Refer to Table1 to determine filter sizes for field supplied filter racks.
NOMINAL FILTER
CFM SIZE(Sq Ft)
4*CY4024 800 2.67 0.08
4*CY4030 1000 3.33 0.08
4*CY4036 1200 4 0.08
4*CY4042 1400 4.67 0.08
4*CY4048 1600 5.33 0.08
4*CY4060 2000 6.67 0.08
UNIT
FILTER
RESISTANCE ("W.C.)
Electrical Wiring
HAZARDOUS VOLTAGE, MOVING PARTS, AND GAS
Bodily injury can result from high voltage electrical compo-
nents, fast moving fans, and combustible gas. For protection
from these inherent hazards during installation and service,
the electrical supply must be disconnected and the main
gas valve must be turned off. If operating checks must be
performed with the unit operating, it is the technician's re-
sponsibility to recognize these hazards and proceed safely.
WARNING
!
IMPORTANT: Air filters and media wheels or plates shall meet the test
requirements in UL 900.