Carrier PA3Z-B, Installation Instructions Manual

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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