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15
Table 5 – Wet Coil Air Delivery*
(Deduct 10 percent for 208 Volt Operation)
UNIT SIZE
SPEED TAP
AIR DELIVERY
2
EXTERNAL STATIC PRESSURE (in. W.C.)
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
024
1
SCFM
965
818
777
731
670
617
563
489
451
391
2
SCFM
1003
921
890
850
809
756
700
659
597
539
3
SCFM
1103
1068
1034
996
962
930
892
821
791
742
030
1
SCFM
1052
1018
984
943
914
879
833
795
732
678
2
SCFM
1141
1107
1069
1036
1006
974
932
899
856
784
3
SCFM
1246
1213
1181
1144
1108
1078
1043
1015
973
931
036
1
SCFM
1281
1225
1178
1142
1098
1053
1008
935
878
840
2
SCFM
1359
1321
1278
1236
1201
1160
1109
1068
992
941
3
SCFM
1476
1441
1403
1366
1323
1289
1245
1201
1159
1117
042
1
SCFM
1453
1408
1373
1337
1295
1255
1215
1177
1134
1068
2
SCFM
1544
1507
1475
1436
1397
1359
1326
1290
1246
1201
3
SCFM
1614
1575
1542
1509
1467
1430
1395
1358
1323
1267
048
1
SCFM
1657
1625
1590
1554
1517
1486
1448
1417
1381
1340
2
SCFM
1707
1673
1644
1614
1586
1549
1515
1479
1449
1407
3
SCFM
1931
1900
1870
1840
1809
1778
1749
1714
1683
1646
060
1
SCFM
1837
1798
1753
1716
1677
1637
1590
1549
1497
1445
2
SCFM
1910
1872
1835
1795
1748
1711
1673
1623
1568
1525
3
SCFM
2098
2065
2032
1996
1956
1917
1877
1839
1798
1753
*Air delivery values are based on operating voltage of 230v, wet coil, without filter or electric heater. Deduct filter and electric heater pressure drops to obtain
static pressure available for ducting.
NOTES:
1. Do not operate the unit at a cooling airflow that is less than 350 cfm for each 12,000 Btuh of rated cooling capacity. Evaporator coil frosting may occur at air-
flows below this point.
2. Standard Cubic Feet per Minute.
CONTINUOUS FAN
With the continuous Indoor fan option selected on the thermostat,
G is continuously energized. The continuous fan speed will be the
same as the cooling fan speed.
ELECTRIC RESISTANCE HEATING
If accessory electric heaters are installed, the thermostat energizes
W, which energizes the heater relay and in turn energizes the
electric heaters. The thermostat terminal G must be energized
which starts the indoor--fan motor. If the heaters are staged, W2 is
energized when the second stage of heating is required. When the
need for heating is satisfied, the heater and IFM are de--energized.
MAINTENANCE
To ensure continuing high performance, and to minimize the
possibility of premature equipment failure, periodic maintenance
must be performed on this equipment. This cooling unit should be
inspected at least once each year by a qualified service person. To
troubleshoot unit, refer to Table 9, Troubleshooting Chart.
NOTE TO EQUIPMENT OWNER: Consult your local dealer
about the availability of a maintenance contract.
PERSONAL
INJURY
AND
UNIT
DAMAGE
HAZARD
Failure to follow this warning could result in personal
injury or death and possible unit component damage.
The ability to properly perform maintenance on this
equipment requires certain expertise, mechanical skills,
tools and equipment. If you do not possess these, do not
attempt to perform any maintenance on this equipment,
other than those procedures recommended in the Owner’s
Manual.
!
WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury or death.
1. Turn off electrical power to the unit and install lockout
tag before performing any maintenance or service on this
unit.
2. Use extreme caution when removing panels and parts.
3. Never place anything combustible either on or in contact
with the unit.
!
WARNING
UNIT OPERATION HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Errors made when reconnecting wires may cause improper
and dangerous operation. Label all wires prior to
disconnecting when servicing.
!
CAUTION
The minimum maintenance requirements for this equipment are as
follows:
1. Inspect air filter(s) each month. Clean or replace when
necessary.
2. Inspect indoor coil, drain pan, and condensate drain each
cooling season for cleanliness. Clean when necessary.
3. Inspect blower motor and wheel for cleanliness each
cooling season. Clean when necessary.
4. Check electrical connections for tightness and controls for
proper operation each cooling season. Service when
necessary.
5. Ensure electric wires are not in contact with refrigerant
tubing or sharp metal edges.
Air Filter
IMPORTANT
: Never operate the unit without a suitable air filter
in the return--air duct system. Always replace the filter with the
same dimensional size and type as originally installed. See Table 1
for recommended filter sizes.
PA
3Z
B