Instruction manual

V. ELECTRICAL CONTROLS AND WIRING
Inspect and check the electrical controls and wiring annually. Be
sure to turn off the electrical power to the unit and install lockout
tag.
Remove access panel to locate all the electrical controls and
wiring. Check all electrical connections for tightness. Tighten all
screw connections. If any smoky or burned connections are
noticed, disassemble the connection, clean all the parts, restrip the
wire end and reassemble the connection properly and securely.
After inspecting the electrical controls and wiring, replace all the
panels. Start the unit, and observe at least one complete cooling
cycle to ensure proper operation. If discrepancies are observed in
operating cycle, or if a suspected malfunction has occurred, check
each electrical component with the proper electrical instrumenta-
tion. Refer to the unit wiring label when making these checkouts.
NOTE: Refer to the Sequence of Operation section as an aid in
determining proper control operation.
VI. REFRIGERANT CIRCUIT
Inspect all refrigerant tubing connections and the unit base for oil
accumulation annually. Detecting oil generally indicates a refrig-
erant leak.
TABLE 7—WET COIL AIR DELIVERY
UNIT 601A 018-060 (DEDUCT 10 PERCENT FOR 208-V)*
UNIT
MOTOR
SPEED
EXTERNAL STATIC PRESSURE (IN. WG)
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
018
Low
Watts - - - 214 191 170 -----
Cfm---821696575-----
Med
Watts -----------
Cfm-----------
High
Watts ----283274267----
Cfm----848707555----
024
Low
Watts - - 237 214 191 ------
Cfm--971821696------
Med
Watts ----368366365360---
Cfm----957872785688---
High
Watts -------425414--
Cfm-------891735--
30
Low
Watts 295 292 289 --------
Cfm928882802--------
Med
Watts 388 383 377 372 366 361 -----
Cfm 1203 1120 1062 1004 930 838 -----
High
Watts ----469458449442---
Cfm----1141 1027 924 828 - - -
36
Low
Watts 592 581 567 552 538 525 512 499 - - -
Cfm 1499 1421 1351 1281 1207 1125 1034 936 - - -
Med
Watts - - - 660 636 617 603 592 581 566 -
Cfm - - - 1475 1371 1274 1186 1105 1024 928 -
High
Watts -----776761744725706689
Cfm-----1452 1356 1254 1145 1030 910
42
Low
Watts 606 596 586 575 563 550 537 - - - -
Cfm 1464 1399 1341 1282 1218 1146 1066 - - - -
Med
Watts 680 665 649 635 622 611 600 590 - - -
Cfm 1608 1535 1461 1387 1316 1247 1180 1111 - - -
High
Watts 768 755 742 730 718 707 696 684 671 - -
Cfm 1656 1576 1508 1447 1390 1331 1268 1198 1119 - -
48
Low
Watts 741 724 709 690 664 631 594 562 543 552 -
Cfm 1994 1937 1869 1797 1722 1645 1566 1480 1384 1269 -
Med
Watts - - - 773 744 715 687 662 640 625 -
Cfm - - - 1957 1867 1787 1719 1653 1575 1463 -
High
Watts -----799782773756704-
Cfm-----1914 1842 1774 1686 1538 -
60
Low
Watts 742 723 698 666 629 591 559 540 - - -
Cfm 2197 2141 2103 2057 1988 1894 1783 1674 - - -
Med
Watts 838 822 803 780 752 721 689 661 639 632 -
Cfm 2485 2406 2269 2127 2012 1937 1894 1855 1770 1571 -
High
Watts - 934 913 891 866 837 806 776 750 735 -
Cfm - 2483 2391 2283 2170 2061 1960 1868 1780 1687 -
* Air delivery values are based on operating voltage of 230-v or 460-v, 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 airflows below
this point.
2. Dashes indicate portions of table that are beyond the blower motor capacity or are not recommended.
3. Deduct 10 percent for 208-v.
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